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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2508. Отображено 100.
05-07-2012 дата публикации

Hot-melt adhesives with improved adhesion on low-energy surfaces

Номер: US20120171466A1
Автор: Dirk Urbach, Kai Paschkowski, Martin Linnenbrink
Принадлежит: SIKA TECHNOLOGY AG

A hot-melt adhesive composition, the use thereof, and a composite body including the hot-melt adhesive composition. The hot-melt adhesive composition includes a polyolefin P, which is solid at 25° C., a soft resin WH with a softening point between −10° C. and 40° C., and a polar modified polyolefin wax PW.

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Номер записи: 1
09-08-2012 дата публикации

Adhesive and adhesive tape

Номер: US20120202053A1
Автор: Masahiko Ando, Toru Iseki, Tsuyoshi Hiramatsu
Принадлежит: Nitto Denko Corp

The present invention provides an adhesive comprising a polyolefin (a), a hydroxyl group-containing polyolefin (b) and a crosslinking agent (c) having a functional group capable of reacting with the hydroxyl group.

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Номер записи: 2
23-05-2013 дата публикации

Adhesive Composition

Номер: US20130130027A1
Автор: Curry Christopher Lewis, Schroeyers Jurgen Jan Martha
Принадлежит: ExxonMobil Chemical Patents Inc.

A composition comprising a hot melt pressure-sensitive adhesive comprising a propylene-based polymer component having a melting point less than or equal to about 130° C. and a triad tacticity greater than about 75%, and free of or having a low block copolymer content. Also, an adhesive article comprising the composition. 1. A hot melt pressure-sensitive adhesive composition comprising a propylene-based polymer component comprising from about 60 to about 98 wt % propylene and from about 2 to about 40 wt % of one or more of ethylene and C-Calpha-olefins , based on the weight of the propylene-based polymer component , the propylene-based polymer component having a melting point less than or equal to about 130° C. and a triad tacticity greater than about 75%; the hot melt pressure-sensitive adhesive composition free of or comprising not more than about 30 wt % of a block copolymer based on the weight of the hot melt pressure sensitive adhesive composition.2. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component comprises from about 75 to about 98 wt % propylene and from about 2 to about 25 wt % of one or more of ethylene and C-Calpha-olefins claim 1 , and wherein the propylene-based polymer component has a melting point less than or equal to about 120° C.3. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component further has a heat of fusion less than about 90 J/g.4. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component has a melt flow rate (MFR) of from about 1 to about 900 g/10 min claim 1 , as measured according to ASTM D-1238 at 230° C. claim 1 , 2.16 kg.5. The hot melt pressure-sensitive adhesive composition of claim 1 , having a viscosity of less than or equal to about 150 claim 1 ,000 mPa-s at 175° C. determined according to ASTM D 3236 claim 1 , or an equivalent thereof.6. The hot melt pressure ...

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Номер записи: 3
20-06-2013 дата публикации

COMPOSITION, LAMINATED STRUCTURE AND METHOD FOR MANUFACTURING LAMINATED STRUCTURE

Номер: US20130157051A1
Автор: Higo Mutsuko, Nagano Masashi
Принадлежит: Sumitomo Chemical Company, Limited

A composition can be provided with superior adhesiveness toward adherends, for example, made of plastic (in particular, polypropylene, and the like). The composition includes the following (A) and (B). (A): Polymer (A-1) having structural units derived from propylene and structural units derived from 1-butene, wherein the content of the structural units derived from propylene is 70-99 mol % based on all the structural units of Polymer (A-1), the content of the structural units derived from 1-butene is 1-30 mol % based on all the structural units of Polymer (A-1), and a melting peak is substantially not observed, or, Polymer (A-2) obtained by modification of Polymer (A-1) with an α,β-unsaturated carboxylic acid, (B): Polymer (B-1) having structural units derived from ethylene and structural units derived from propylene, wherein the content of the structural units derived from ethylene is 5-20 mol % based on all the structural units of Polymer (B-1), the content of the structural units derived from propylene is 80-95 mol % based on all the structural units of Polymer (B-1), and a melting peak is observed, or, Polymer (B-2) obtained by modification of Polymer (B-1) with an α,β-unsaturated carboxylic acid. 1. A composition comprising the following (A) and (B):(A): Polymer (A-1) which has structural units derived from propylene and structural units derived from 1-butene, wherein the content of the structural units derived from propylene is 70-99 mol % based on all the structural units of Polymer (A-1), the content of the structural units derived from 1-butene is 1-30 mol % based on all the structural units of Polymer (A-1), and in which a melting peak is substantially not observed, or,Polymer (A-2) obtained by modification of Polymer (A-1) with an a43-unsaturated carboxylic acid,(B): Polymer (B-1) which has structural units derived from ethylene and structural units derived from propylene, wherein the content of the structural units derived from ethylene is 5-20 mol % ...

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Номер записи: 4
20-06-2013 дата публикации

LOW APPLICATION TEMPEARATURE AMORPHOUS POLY-a-OLEFIN ADHESIVE

Номер: US20130158176A1
Автор: Alvarado Salvador, Desai Darshak, Hu Yuhong, Paul Charles W.
Принадлежит: Henkel Corporation

It has been discovered that amorphous polybutene copolymers that have a softening point of from about 70 to about 105° C. and viscosity of less than about 1,900 cP at 190° C. possesses desirable properties and may be used to make a low application temperature hot melt adhesive for disposable absorbent articles. 1. A hot melt adhesive comprising at least 45 wt % , based on the adhesive , of an amorphous polybutene copolymer which has a softening point of from about 70 to about 105° C. and viscosity of less than about 1 ,900 cP at 190° C. , and wherein the hot melt adhesive has a viscosity of less than about 6 ,000 cP at 150° C.2. The hot melt adhesive of wherein the amorphous polybutene copolymer has a tan(δ) value greater than 30 at 140° C.3. The hot melt adhesive of wherein the amorphous polybutene copolymer further comprises propylene comonomer.4. The hot melt adhesive of wherein the amorphous polybutene copolymer has a butene content greater than about 40%.5. The hot melt adhesive of further comprising a tackifier which has a softening point greater than or equal to 80° C.6. The hot melt adhesive of wherein the tackifier has a softening point greater than or equal to 100° C.7. The hot melt adhesive of wherein the tackifier is selected from the group consisting of C5 resins claim 4 , petroleum distillates claim 4 , hydrogenated hydrocarbons claim 4 , C5/C9 claim 4 , polyterpenes claim 4 , rosin claim 4 , hydrogenated rosin claim 4 , and rosin esters and mixtures thereof.8. The hot melt adhesive of further comprising a crystalline wax which has a melting point greater than 60° C.9. The hot melt adhesive of wherein the crystalline wax is selected from the group consisting of Fischer-Tropsch wax claim 8 , petroleum based wax claim 8 , conventional wax claim 8 , natural-based wax claim 8 , functionalized wax claim 8 , polyolefin copolymers and mixtures thereof.10. The hot melt adhesive of which is essentially free of wax and/or plasticizer.11. The hot melt adhesive of ...

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Номер записи: 5
25-07-2013 дата публикации

BONDING USING HOT-MELT ADHESIVES

Номер: US20130186566A1
Автор: Kasper Dirk, Lotz Juergen, Pielert Lutz
Принадлежит: Henkel AG & Co. KGaa

The invention relates to the use of a hot-melt adhesive having high hardness for adhesive bonding of metal films or foils, paper films or foils, and/or plastic films or foils. The invention further relates to a method for adhesively bonding a metal film or foil, paper film or foil, and/or plastic film or foil onto a substrate. 1: A hot-melt adhesive for bonding a film/foil selected from a metal film , metal foil , paper film , paper foil , plastic film or plastic foil , (A) 10 to 80 wt % of at least one thermomechanically degraded polypropylene copolymer,', '(B) 5 to 60 wt % of at least one tackifying resin,', '(C) 0 to 40 wt % of at least one further additive,, 'wherein the hot-melt adhesive compriseswherein the hot-melt adhesive has a Shore D hardness above 50 measured in accordance with DIN EN ISO 868:2003.2: The hot-melt adhesive according to claim 1 , wherein the thermomechanically degraded polypropylene copolymer is manufactured by thermomechanical degradation of at least one polypropylene copolymer under shear stress above the softening point of the polypropylene copolymer claim 1 ,wherein the melt viscosity of the thermomechanically degraded polypropylene copolymer is less than 70% of the melt viscosity of the undegraded polypropylene copolymer, determined at 200° C.3: The hot-melt adhesive according to claim 2 , wherein the thermomechanical degradation is carried out in the presence of at least one radical former.4: The hot-melt adhesive according to claim 1 , wherein the thermomechanically degraded polypropylene copolymer has a propylene content of 50 to 99 wt % claim 1 , based on the total weight of the thermomechanically degraded polypropylene copolymer.5: The hot-melt adhesive according to claim 1 , wherein the thermomechanically degraded polypropylene copolymer has an ethylene content of 1 to 25 wt % claim 1 , based on the total weight of the thermomechanically degraded polypropylene copolymer.6: The hot-melt adhesive according to claim 1 , wherein the ...

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Номер записи: 6
08-08-2013 дата публикации

PRESSURE SENSITIVE ADHESIVE WITH BUTENE-1 COPOLYMERS

Номер: US20130202836A1
Автор: De Clippeleir Johan, Musacchi Gianluca, Pellegatti Giampaolo, Roucourt Inge Elisabeth, Spataro Stefano
Принадлежит: Basell Poliolefine Italia S.r.I.

Pressure sensitive adhesive composition and multilayer easy peel re-closable structures thereof, comprising a butene-1 (co)polymer (A) having a content of butene-1 derived units of 80 wt % or more; a flexural modulus (MEF) of 80 MPa or less; a melting temperature DSC (TmI) lower than 110° C., and optionally a tackifier (B). 1. Pressure-sensitive adhesive comprising a content of butene-1 derived units of 80 wt % or more,', 'a flexural modulus (MEF) of 80 MPa or less,', 'a melting temperature DSC (TmI) lower than 110° C.; and optionally, 'A) a butene-1 (co)polymer havingB) a tackifier.2. Pressure-sensitive adhesive according to comprising:60-95 wt % of the butene-1 (co)polymer (A)5-40% of a tackifier (B)3. Pressure-sensitive adhesive according to wherein the butene-1 (co)polymer (A) has crystallinity of less than 40% measured via X-ray.4. Pressure-sensitive adhesive according to wherein the butene-1 (co)polymer has hardness shore A lower than 90.5. Pressure-sensitive adhesive according to claiml wherein the tackifier is a “Hydrogenated Hydrocarbon Resin”6. Pressure-sensitive adhesive according to claiml wherein the butene-1 (co)polymer (A) is selected from the group consisting of: 'percentage of isotactic pentads (mmmm %) from 10% to 50%, and', '(A1) a butene-1 homopolymer or copolymer having 'distribution of molecular weights (Mw/Mn) measured by GPC lower than 3.', '(A2) a butene-1 homo or copolymer, in particular a butene-1/ethylene copolymer or a butene-1/ethylene/propylene terpolymer having7. Use of a butene-1 (co)polymer (A) having:a content of butene-1 derived units of 80 wt % or morea flexural modulus (MEF) of 80 MPa or lessa melting temperature DSC (TmI) lower than 110° C.,for the preparation of a pressure sensitive adhesive.8. A multilayer easy peel reclosable film structure for heat seal application wherein at least an inner layer is made of or substantially consisting of the pressure sensitive adhesive according to .9. A multilayer easy peel reclosable film ...

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Номер записи: 7
08-08-2013 дата публикации

Adhesive Composition and Use Thereof

Номер: US20130203900A1
Автор: Ellis Richard, Eodice Andrea, Kasper Dirk, Padurschel Petra, Paul Charles W.
Принадлежит:

The invention provides adhesives comprising at least one polymer component which contains at least 65 weight percent propylene, at least one nucleator and at least one functionalized wax. The inventive adhesives have increased heat resistance and decreased set-time, making them particularly well suited for assembly and packaging applications. 1: An adhesive comprising:(a) a polymer component which contains, in polymerized form, at least 65 wt % of propylene, based on the total weight of the polymer component;(b) at least one nucleator; and(c) at least one functionalized wax;wherein the weight ratio of the nucleator to the functionalized wax ranges from about 1:500 to about 50:1.2: An adhesive comprising:(i) a polymer component which contains, in polymerized form, at least 65 wt % of propylene, based on the total weight of the polymer;(ii) at least one nucleator selected from the group consisting of organic acid salts, phosphoric acids, ethylene-(meth)acrylic acid ionomers, multiple amides components, sorbitols and their corresponding derivatives thereof; and(iii) a functionalized wax which is a wax grafted with at least one olefinically unsaturated dicarboxylic anhydride of less than 12 carbon atoms.3: An adhesive comprising:(a) from about 30 to about 99 wt % based on the total weight of the adhesive, of a polymer component which contains, in polymerized form, at least 65 wt % of propylene, based on the total weight of the polymer component;(b) from about 0.05 to about 1 wt %, based on the total weight of the adhesive, of at least one nucleator; and(c) from about 0.01 to about 5 wt %, based on the total weight of the adhesive, of at least one functionalized wax;wherein the total weight percent of the adhesive equals to 100 weight percent.4: The adhesive of wherein the polymer component comprises a copolymer of propylene and at least one comonomer claim 1 , wherein the comonomer is selected from ethylene and/or Calpha-olefins.5: (canceled)6: The adhesive of wherein ...

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Номер записи: 8
29-08-2013 дата публикации

Water-Stable, Oil-Modified, Nonreactive Alkyd Resin Construction Adhesives, and Use Thereof

Номер: US20130225730A1
Автор: Allen, Huhn Wolfgang Edgar, JR. William Maxwell, Noda Isao
Принадлежит: The Procter & Gamble Company

Disclosed herein is a new use for water-stable, oil-modified, nonreactive alkyd resins. It has now been found that such resins can be used as the predominant component of a construction adhesive employed in the manufacture of disposable absorbent articles, for example. As such, the construction adhesive need not employ plasticizers, tackifiers, and conventional polymers required by hot-melt adhesives typically used as construction adhesives. Furthermore, in the manufacture of disposable absorbent articles, the construction adhesive containing a water-stable, oil-modified, nonreactive, alkyd resin does not need to be processed or applied at the high temperatures required of construction adhesives containing reactive alkyds. 1. A construction adhesive composition comprising:(a) at least about 65 wt. % of a water-stable, oil-modified, nonreactive alkyd resin; and,(b) about 0.01 wt. % to about 35 wt. % of one of (i) a polymer selected from the group consisting of polyhydroxyalkanoates, polyvinyl alcohol, polyethylene, polypropylene, polyethylene terephthalate, maleated polyethylene, maleated polypropylene, polylactic acid, modified polypropylene, nylon, caprolactone, and combinations thereof; and, (ii) a processing aid selected from the group consisting of talc, clay, pulp, flour, walnut shells, cellulose, cotton, jute, raffia, rice chaff, animal bristles, chitin, granular starch, diatomaceous earth, carbon fibers, kenaf, magnesium stearate, fatty acid amides, metal salts of fatty acids, wax acid esters and their soaps, montan wax acids, esters and their soaps, polyolefin waxes, non polar polyolefin waxes, natural and synthetic paraffin waxes, fluoro polymers, silicon, diatomaceous earth, and combinations thereof.2. The construction adhesive composition of claim 1 , wherein the alkyd resin is present in the composition in an amount of at least about 80 wt. %.3. The construction adhesive composition of claim 1 , wherein the alkyd resin is present in the composition in an ...

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Номер записи: 9
29-08-2013 дата публикации

Polypropylene-Based Adhesive Compositions

Номер: US20130225752A1
Автор: Cynthia A. Mitchell, Mun Fu Tse, Sudhin Datta
Принадлежит: ExxonMobil Chemical Patents Inc

The present invention is related to adhesive compositions and their applications. In particular, the adhesive compositions described herein comprise a two or more propylene-based copolymers with varying comonomer content.

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Номер записи: 10
21-11-2013 дата публикации

Medium Density Polyethylene Film Layer and Multilayer Film Comprising Same

Номер: US20130309426A1
Автор: Cretekos George F., Thai Hao C.
Принадлежит: ExxonMobil Chemical Company

A sealant skin layer for a multilayer film structure and multilayer film structure comprising same having improved processability, seal strength, reduced seal temperature and coefficient of friction are disclosed. The multilayer film may be transparent, contain a cavitating agent, or is pigmented to form an opaque film. Also, the multilayer film may be metallized or coated with a barrier coating. 1. A sealant skin layer for a multilayer film structure comprising a blend of from 25 wt % to 75 wt % MDPE having a density of from 0.910 g/cmto 0.950 g/cm , from 25 wt % to 75 wt % Cto Crandom copolymer or terpolymer and from 0.3 wt % to 1 wt % antiblock agent.2. The sealant skin layer of claim 1 , wherein said MDPE has a density of from 0.910 g/cmto 0.930 g/cm claim 1 , said copolymer or terpolymer is selected from the group consisting of ethylene-propylene (EP) claim 1 , propylene-butylene (PB) claim 1 , ethylene-propylene-butylene (EPB) and combinations thereof claim 1 , and said antiblock agent is selected from the group consisting of polymethyl methacrylate claim 1 , cross-linked polymethyl methacrylate claim 1 , and combinations thereof3. The sealant skin layer of claim 1 , which provides a multilayer film structure comprising a seal strength of greater than 1100 grams/inch (433 g/cm) for a seal formed on a crimp sealer at a temperature less than or equal to 120° C. claim 1 , said crimp sealer operated at 200 g/25 mm seal weight with 60 psi pressure and 0.75 second dwell time of the sealant skin layer to itself.4. The sealant skin layer of claim 3 , wherein the seal strength is greater than 1300 grams/inch (512 g/cm).5. A multilayer film structure comprising (a) a core layer having a first side and a second side claim 3 , said core layer comprising at least one core polymer; (b) a first tie layer having a first side and a second side claim 3 , the second side of the first tie layer on the first side of said core layer claim 3 , said first tie layer comprising an ...

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Номер записи: 11
19-12-2013 дата публикации

ADHESIVE COMPOSITION AND THERMALLY ADHESIVE MEMBER USING SAME

Номер: US20130338284A1
Автор: Imahori Makoto, Ito Takahiro, Nishio Tatsuo
Принадлежит: TOAGOSEI CO LTD

The purpose of the present invention is to provide an adhesive composition leading to sufficient adhesive strength when used for bonding to a polyolefin resin molded article that bonds poorly with other members. Another purpose of the present invention is to provide an adhesive composition having excellent heat resistance (heat resistant adhesion) in the bonded part of a composite body obtained by joining a polyolefin resin-formed body and other member. This adhesive composition contains an organic solvent, a carboxyl group-containing polyolefin resin which is dissolved in this organic solvent and which has a melt flow rate of 5 to 40 g/10 min when measured at 130° C., and a polyfunctional isocyanate compound. This adhesive composition may further contain a carboxyl group-containing polyolefin resin having a melting point of 120° C. to 170° C. 1. An adhesive composition , comprising:an organic solvent,a polyolefin resin A that is dissolved in the organic solvent, anda polyfunctional isocyanate compound,wherein the polyolefin resin A has a melt flow rate measured at 130° C. of 5 to 40 g/10 min, and comprises a carboxyl group.2. The adhesive composition according to claim 1 , wherein a content of the carboxyl group in the polyolefin resin A is in a range of from 0.01 to 2.0 mmol based on 1 g of the polyolefin resin A.3. The adhesive composition according to claim 2 , further comprising a polyolefin resin B that has a melting point of from 120° C. to 170° C. claim 2 , and comprises a carboxyl group.4. The adhesive composition according to claim 3 , wherein a content of the carboxyl group in the polyolefin resin B is in a range of from 0.01 to 2.0 mmol based on 1 g of the polyolefin resin B.5. The adhesive composition according to claim 1 , further comprising a polyolefin resin B that has a melting point of from 120° C. to 170° C. claim 1 , and comprises a carboxyl group.6. The adhesive composition according to claim 5 , wherein a content of the carboxyl group in the ...

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Номер записи: 12
26-12-2013 дата публикации

HOT MELT ADHESIVE

Номер: US20130345355A1
Автор: Takamori Ai
Принадлежит: Henkel AG & Co. KGaa

The present invention provides a hot melt adhesive which is less likely to cause stringing, is excellent in heat resistance and thermal stability, and has excellent adhesive strength in a wide temperature range. Moreover, the present invention provides a paper product produced by using the hot melt adhesive. 1. A hot melt adhesive comprising:(A) a copolymer of ethylene/olefin having 3-20 carbons and the amount of the copolymer of ethylene/carboxylic acid ester (B) is from 13 to 35 parts by weight based on 100 parts by weight in total of the components (A) and (B),', 'wherein the adhesive has an appearance of granular shape when discharged from a nozzle at the rate of 0.4 MPa without any stringing., '(B) a copolymer of ethylene/carboxylic acid ester, wherein'}2. The hot melt adhesive according to claim 1 , whereinthe copolymer of ethylene/olefin having 3-20 carbons (A) includes (A1) a copolymer of ethylene with octene, andthe copolymer of ethylene/carboxylic acid ester (B) includes (B1) a copolymer of ethylene with methyl methacrylate.3. The hot melt adhesive according to claim 2 , whereinthe copolymer of ethylene/carboxylic acid ester (B) further includes (B2) a copolymer of ethylene with ethyl acrylate.4. The hot melt adhesive according to claim 1 , wherein the hot melt adhesive further includes (C) Fischer-Tropsch wax.5. A paper product produced by using the hot melt adhesive according to . The present invention relates to a hot melt adhesive. Furthermore, the present invention relates to a paper product obtained using the hot melt adhesive.A hot melt adhesive is a solvent-free adhesive and has features enabling of instant bonding and high-speed bonding since adhesion of the adhesive is exhibited after the adhesive is heated and melted, coated to an adherend and then solidified by being cooled. For example, the hot melt adhesive is now widely used in paper processing, woodworking, sanitary material and electronic fields.There have been used commonly, as a base ...

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Номер записи: 13
30-01-2014 дата публикации

SEALING MATERIAL OF POLYPROPYLENE WITH IMPROVED OPTICAL PERFORMANCE

Номер: US20140031492A1
Автор: Aguayo Arellano Pablo Ivan, Reichelt Kristin, Stockreiter Wolfgang
Принадлежит: Borealis AG

Polypropylene composition comprising a propylene homopolymer having a melt flow rate MFR(230° C.) in the range of 1.0 to 20.0 g/10 min and a propylene copolymer, said copolmyer comprisesa polypropylene fraction having a comonomer content of not more than 1.0 wt.-%, the comomers are Cto Cα-olefins, anda propylene copolymer fraction having a comonomer content 4.0 to 20.0 wt.-%, the comomers are Cto Cα-olefins, wherein furtherthe propylene copolymer has a comonomer content of at least 2.5 wt.-%, the comomers are Cto Cα-olefins, the melt flow rate MFR(230° C.) of the propylene homopolymer is higher than the melt flow rate MFR(230° C.) of the polypropylene fraction, the weight ratio of the polypropylene fraction to the propylene copolymer fraction is in the range of 30/70 to 70/30, andthe weight ratio of the propylene copolymer to the propylene homopolymer is in the range of 95/5 to 75/25. 1. Polypropylene composition comprising{'sub': '2', '(a) a propylene homopolymer (H-PP) having a melt flow rate MFR(230° C.) measured according to ISO 1133 in the range of 1.0 to 20.0 g/10 min, and'}(b) a propylene copolymer (C-PP) comprising{'sub': 5', '12, '(b-1) a polypropylene fraction (A) having a comonomer content of not more than 1.0 wt.%, the comomers are Cto Cα-olefins, and'}{'sub': 5', '12, '(b-2) a propylene copolymer fraction (B) having a comonomer content 4.0 to 20.0 wt.%, the comomers are Cto Cα-olefins,'}wherein further{'sub': 5', '12, '(c) the propylene copolymer (C-PP) has a comonomer content of at least 2.0 wt.%, the comomers are Cto Cα-olefins,'}{'sub': 2', '2, '(d) the melt flow rate MFR(230° C.) measured according to ISO 1133 of the propylene homopolymer (H-PP) is higher than the melt flow rate MFR(230° C.) measured according to ISO 1133 of the polypropylene fraction (A),'}(e) the weight ratio [(A)/(B)] of the polypropylene fraction (A) to the propylene copolymer fraction (B) is in the range of 30/70 to 70/30, and(f) the weight ratio [(C-PP)/(H-PP)] of the ...

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Номер записи: 14
06-02-2014 дата публикации

Sealing material of polypropylene with high melting temperature

Номер: US20140039124A1
Автор: Kristin Reichelt, Pablo Ivan AGUAYO ARELLANO, Wolfgang Stockreiter
Принадлежит: Borealis AG

Polypropylene composition comprising propylene homopolymer (H-PP) and a propylene copolymer (C-PP), said copolmyer comprises (a) a propylene copolymer fraction (A) having a comonomer content of equal or above 1.0 wt.-%, the comomers are C 5 to C 12 α-olefins, and (b) a propylene copolymer action (B) having a comonomer content of 4.0 to 20.0 wt-%, the comomers are C 5 to C 12 α-olefins, wherein further (i) the comonomer content in propylene copolymer fraction (A) is lower compared to the comonomer content in the propylene copolymer fraction (B), (ii) the propylene copolymer (C-PP) has a comonomer content of at least 2.0 wt.-%, the comomers are C 5 to C 12 α-olefins, (iii) the weight ratio [(A)/(B)] of the propylene copolymer fraction (A) to the propylene copolymer fraction (B) is in the range of 20/80 to 80/20, and (iv) the weight ratio [(C-PP)/(H-PP)] of the propylene copolymer (C-PP) to the propylene homopolymer (H-PP) is in the range of 95/5 to 75/25.

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Номер записи: 15
06-03-2014 дата публикации

Multiple Catalyst System for Olefin Polymerization and Polymers Produced Therefrom

Номер: US20140066567A1
Автор: Abhari Ramin, Canich Jo Ann Marie, Dekmezian Armenag Hagop, Garcia-Franco Cesar Alberto, JIANG Peijun, Johnsrud David Raymond, Sims Charles Lewis
Принадлежит:

This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g′) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%. 2. The adhesive of claim 1 , wherein the polymer composition has:a) a Dot T-Peel of 2 Newton or more on Kraft paper;b) a branching index of 0.4 to 0.8;c) a Mw of 10,000 to 60,000; andd) a crystallinity of between 10 and 30%, wherein crystallinity is determined according to ASTM E 794-853. The adhesive of claim 1 , wherein the olefin polymer composition has:a) an isotactic run length of 1 to 30,b) a percent of r dyad of greater than 20%, andc) a crystallinity of between 10 and 30%, wherein crystallinity is determined according to ASTM E 794-85.4. The adhesive of claim 1 , wherein the olefin polymer composition has a melt viscosity of 7000 mPa·sec or less at 190° C.5. The adhesive of claim 1 , wherein the olefin polymer composition has a melt viscosity of 5000 mPa·sec or less at 190° C.6. The adhesive of claim 1 , wherein the olefin polymer composition has a melt viscosity of between 250 and 6000 mPa·sec at 190° C.7. The adhesive of claim 1 , wherein the olefin polymer composition has a melt viscosity of between 500 and 3000 mPa·sec at 190° C.8. The adhesive of claim 4 , wherein the olefin polymer composition has a Tg of 0° C. or less.9. A pellet comprising the adhesive of .10. The adhesive of claim 1 , further comprising a functionalized wax.11. The adhesive of claim 1 , further comprising a wax.12. The adhesive of claim 1 , adhesive further comprising a ...

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Номер записи: 16
20-03-2014 дата публикации

HOT MELT ADHESIVE

Номер: US20140079919A1
Автор: Bunnelle William L.
Принадлежит: IFS Industries Inc.

A hot melt adhesive material and articles made using the hot melt adhesive to assemble structures in an article. The adhesive material typically is manufactured by blending amorphous polymer with a heterophase polymer having crystallinity into an adhesive composition. 1. A hot melt adhesive composition comprising:(i) an amorphous polyolefin composition;(ii) a heterophase polyolefin composition comprising amorphous character and crystalline blocks.2. The adhesive of wherein the amorphous polyolefin has less than 5 wt. % crystallinity claim 1 , heterophase polyolefin comprises at least about 5 wt. % crystallinity in at least one sequence or block; wherein the amorphous polymer provides adhesion and the heterophase polymer provides cohesive strength.3. The adhesive of wherein the amorphous polymer comprises greater than 40 wt. % butene and less than 50 wt. % of one or more alpha olefin Cor Cmonomers.4. The adhesive of wherein the heterophase polymer comprises greater than 40 wt. % of propene and less than 60 wt. % of one or more alpha olefin Cor Cmonomers and comprises polymer blocks or sequences that have a crystallinity of greater than 10%.5. The adhesive of wherein the adhesive is substantially free of a tackifier.6. The adhesive of wherein there is about 50 to 90 wt. % of the amorphous polymer and about 10 to 50 wt. % of the heterophase polymer the heterophase polymer comprising at least 30 wt. % crystallinity.7. The adhesive of wherein the density of the adhesive is less than 0.9 g-cm.8. The adhesive of wherein the density of the adhesive is less than 0.87 g-cm.9. A hot melt adhesive composition consisting essentially of:(i) about 90 to 10 wt. % of an amorphous polyolefin composition comprising 1-butene;(ii) about 10 to 90 wt. % of a heterophase polyolefin composition comprising propene and ethylene, 1-hexene or 1-octene and comprising amorphous blocks and crystalline blocks; and(iii) about 0.1 to 30 wt. % of a plasticizer; wherein the adhesive provides cohesive ...

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Номер записи: 17
27-03-2014 дата публикации

PERMEABLE PRESSURE SENSITIVE ADHESIVE

Номер: US20140087183A1
Автор: Buus Hasse, KONGEBO Tom, Lykke Mads
Принадлежит: COLOPLAST A/S

The present invention relates to a pressure sensitive, hot melt processable adhesive composition comprising a polar plasticising oil, a polar polyethylene copolymer and polyisobutylene and a layered adhesive construction and a medical device comprising the adhesive composition according to the invention. 1. A pressure sensitive , hot melt processable adhesive composition comprising a polar plasticising oil or a combination of polar plasticising oils in the content of above 10% (w/w) of the final adhesive , and at least one polar polyethylene copolymer , and polyisobutylene , wherein the content of the polyethylene copolymer is 5.50% (w/w) of the final adhesive , the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N).2. A pressure sensitive , hot melt processable adhesive composition produced by mixing a polar plasticising oil or a combination of polar plasticising oils in the content of above 10% (w/w) of the final adhesive , and at least one polar polyethylene copolymer , and polyisobutylene , wherein the content of the polyethylene copolymer is 5-50% (w/w) of the final adhesive , the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N).3. The pressure sensitive adhesive composition according to claim 1 , wherein the final adhesive in continuous form exhibits a moisture vapour transmission rate of at least 100 g/m2/day for a 150 ?m adhesive sheet when measured according to MVTR Test Method.4. The pressure sensitive adhesive composition according to claim 1 , wherein the polar polyethylene copolymer is selected from the group consisting of ethylene vinyl acetate claim 1 , ethylene vinyl acetate carbon monoxide claim 1 , ethylene butyl acetate claim 1 , ethylene vinyl alcohol claim 1 , ethylene butyl acrylate claim 1 , ethylene butyl acrylate carbon monoxide claim 1 , and combinations thereof.5. The pressure sensitive adhesive composition according to claim 4 , wherein the polar polyethylene copolymer is ethylene ...

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Номер записи: 18
02-01-2020 дата публикации

ADHESIVE COMPOSITION COMPRISING AMORPHOUS PROPYLENE-ETHYLENE COPOLYMER AND PROPYLENE POLYMER

Номер: US20200002448A9
Автор: Carvagno Terri Roxanne, Kueppers Michelle C., Quinn Thomas H.
Принадлежит: EASTMAN CHEMICAL COMPANY

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives. 1. An adhesive comprising at least one propylene-ethylene copolymer and at least one high propylene-content polymer , wherein said propylene-ethylene copolymer comprises at least 10 weight percent of ethylene and a softening point of at least 99° C.2. The adhesive of claim 1 , wherein said high propylene-content polymer is selected from the group consisting of propylene homopolymers; metallocene-catalyzed polypropylenes; propylene-ethylene copolymers; metallocene-catalyzed propylene-ethylene copolymers; copolymers of propylene and a linear or branched Cto Colefin; a metallocene-catalyzed copolymer of propylene and a linear or branched Cto Colefin claim 1 , terpolymers of propylene claim 1 , ethylene claim 1 , and a Cto 020 olefin; propylene waxes claim 1 , terpolymers formed from ethylene claim 1 , propylene claim 1 , and a diene (EPDM) claim 1 , or a combination thereof.3. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises 12 to 40 weight percent of ethylene.4. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a softening point in the range of 105 to 145° C.5. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a needle penetration in the range of 8 to 75 dmm as measured according to ASTM D5.6. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a crystallinity of less than 30 percent as measured using DSC according to ASTM E 794-85 and a number average molecular weight (Mn) of less than ...

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Номер записи: 19
02-01-2020 дата публикации

ADHESIVES COMPRISING AMORPHOUS PROPYLENE-ETHYLENE COPOLYMERS

Номер: US20200002449A9
Автор: Hagood Andrea Gail, Muvundamina Mutombo Joseph, Robe Gary Robert, Sood Dhiraj Sudesh, Williams Timothy
Принадлежит: EASTMAN CHEMICAL COMPANY

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives. 1. An adhesive comprising a propylene-ethylene copolymer , wherein said propylene-ethylene copolymer comprises at least 10 weight percent of ethylene and a softening point of at least 99° C.2. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises 12 to 40 weight percent of ethylene.3. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a softening point in the range of 105 to 145° C.4. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a needle penetration in the range of 8 to 75 dmm as measured according to ASTM D5.5. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a crystallinity of less than 30 percent as measured using DSC according to ASTM E 794-85 and a number average molecular weight (Mn) of less than 25 claim 1 ,000 as determined by gel permeation chromatography.6. The adhesive of claim 1 , wherein said propylene-ethylene copolymer comprises a Brookfield viscosity at 190° C. of less than 30 claim 1 ,000 cps as measured according to ASTM D3236.7. The adhesive of claim 1 , wherein said propylene-ethylene copolymer exhibits a glass transition temperature (Tg) in the range of −60 to 20° C.8. The adhesive of claim 1 , wherein said adhesive comprises:(a) 5 to 95 weight percent of said propylene-ethylene copolymer;(b) not more than 55 weight percent of a propylene polymer or a metallocene-catalyzed polyolefin;(c) not more than 55 weight percent of at least one tackifier;(d) not more than ...

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Номер записи: 20
04-01-2018 дата публикации

Multilayer film

Номер: US20180002573A1
Автор: Hideaki Takeda, Hiroshi Kawakita, Kirihiro NAKANO
Принадлежит: Kuraray Co Ltd

Provided are a multilayer film, a method for producing the multilayer film, and a method for producing a molded body. The multilayer film has excellent three-dimensional overlaying formability and adhesiveness after being formed; can easily be used when being bonded to an adherend; maintains adhesive strength. Specifically, the multilayer film has: an adhesive layer comprising a thermoplastic polymer composition containing a thermoplastic elastomer (A) which is a block copolymer or a hydrogenated product thereof having a polymer block (a1) containing aromatic vinyl compound units and having a polymer block (a2) containing conjugated diene compound units; and a base layer comprising an amorphous resin which has a modulus of elasticity of 2 to 600 MPa at an arbitrary temperature of 110 to 160° C. The tensile elongation at break of the multilayer film at a temperature 5° C. lower than the glass transition temperature of the amorphous resin is at least 160%.

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Номер записи: 21
04-01-2018 дата публикации

PROPYLENE POLYMER-BASED HOT MELT ADHESIVE COMPOSITION EXHIBITING FAST SET TIME AND ARTICLES INCLUDING THE SAME

Номер: US20180002578A1
Автор: Kauffman Thomas F., Larson Kim M., Roska Timothy W., Schmit Amanda L., Scmidt Scott C.
Принадлежит:

A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g. 1. A hot melt adhesive composition comprising:at least 35% by weight polymer;from about 15% by weight to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from about 0 mole % to about 37.5 mole % of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g;{'sup': '3', 'from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm; and'}from 18% by weight to about 37% by weight of a wax component exhibiting a melting point greater than 80° C. and a heat of fusion of at least 200 J/g,the composition exhibiting a set time of no greater than 1.5 seconds at an application temperature of at least 149° C.2. The hot melt adhesive composition of claim 1 , wherein the propylene polymer exhibits a theft temperature of no greater than 126° C.3. The hot melt adhesive composition of claim 1 , wherein the propylene polymer exhibits a ...

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Номер записи: 22
03-01-2019 дата публикации

AMORPHOUS HEXENE-1 BASED POLYMERIC HOT MELT ADHESIVE

Номер: US20190002742A1
Автор: Fowler Nick, Passmore John, Sustic Andres
Принадлежит:

A hot melt adhesive formulation includes 60 to 99 wt. of an amorphous propylene-co-hexene-1 polymer component based on the total weight of the hot melt adhesive without the use of flammable solvents, 20 to 80 wt % of hexene-1 co-monomer based on the total weight of the amorphous propylene-co-hexene-1 copolymer component, 20 to 80 wt. % of a propylene co-monomer based on the total weight of the amorphous propylene-co-hexene-1 copolymer component, and from 1 to 40 wt. % of a co-adjuvant based on the total weight of the hot melt adhesive. The hot melt adhesive formulation has rolling ball tack from 2 to 50 centimeters at ambient temperature after conditioning at ambient temperatures for 24 hours. The hexene-1 monomer to propylene monomer ratios are from 4:1 to 1:4. 1. A hot melt adhesive formulation comprising: (i) 20 wt. % to 80 wt. % of hexene-1 co-monomer based on the total weight of the amorphous propylene-co-hexene-1 polymer component;', '(ii) 20 wt. % to 80 wt. % of a propylene co-monomer based on the total weight of the amorphous propylene-co-hexene-1 polymer component; and wherein a hexene-1 co-monomer to propylene co-monomer ratio is from 4:1 to 1:4; and', '(iii) 1 wt. % to 40 wt. % of a co-adjuvant based on the total weight of the hot melt adhesive, wherein the hot melt adhesive formulation has a roiling ball tack from 2 to 50 centimeters at ambient temperature after conditioning at ambient temperatures for 24 hours without the use of flammable solvents., '60 wt. % to 99 wt. % of an amorphous propylene-co-hexene-1 polymer component based on the total weight of the hot melt adhesive without the use of flammable solvents comprising2. The hot melt adhesive of claim 1 , comprising 20 wt. % to 80 wt. % of a 1-butene co-monomer in the amorphous propylene-co-hexene-1 polymer component claim 1 , forming a terpolymer of the amorphous polyene hexene-1 polymer component claim 1 , and wherein the hexene-1 co-monomer to the propylene co-monomer to the butene-1 co-monomer ...

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Номер записи: 23
12-01-2017 дата публикации

POLYOLEFIN RESIN COMPOSITION FOR HOT MELT ADHESIVE, HOT MELT ADHESIVE FILM, AND LAMINATE

Номер: US20170009110A1
Автор: Nakayama Ryoji, SAITO Arihiro
Принадлежит: KANEKA CORPORATION

A polyolefin resin composition for hot melt adhesives includes 5 to 95% by weight of (A) an ethylene-α-olefin copolymer having a melting point of at least 100° C. but not more than 140° C.; and 5 to 95% by weight of (B) an ethylene-α-olefin copolymer having a melting point of at least 70° C. but less than 100° C. 1. A polyolefin resin composition for hot melt adhesives , comprising:5 to 95% by weight of (A) an ethylene-α-olefin copolymer having a melting point of at least 100° C. but not more than 140° C.; and5 to 95% by weight of (B) an ethylene-α-olefin copolymer having a melting point of at least 70° C. but less than 100° C.2. The polyolefin resin composition for hot melt adhesives according to claim 1 , further comprising 1 to 60 parts by weight of (C) a styrenic thermoplastic elastomer per 100 parts by weight of the combined amount of the copolymers (A) and (B).3. The polyolefin resin composition for hot melt adhesives according to claim 1 , further comprising 1 to 80 parts by weight of (D) a tackifier per 100 parts by weight of the combined amount of the copolymers (A) and (B).4. The polyolefin resin composition for hot melt adhesives according to claim 1 , wherein the polyolefin resin composition has a storage elastic modulus at 80° C. claim 1 , G′(80) claim 1 , of 0.8 MPa or more as measured in a shear mode at a frequency of 10 Hz claim 1 , and a storage elastic modulus at 110° C. claim 1 , G′(110) claim 1 , of less than 0.8 MPa as measured in a shear mode at a frequency of 10 Hz.5. The polyolefin resin composition for hot melt adhesives according to claim 1 , wherein the ethylene-α-olefin copolymer (A) has a tensile elastic modulus of at least 300 MPa but not more than 700 MPa claim 1 , and the ethylene-α-olefin copolymer (B) has a tensile elastic modulus of at least 50 MPa but less than 300 MPa.6. The polyolefin resin composition for hot melt adhesives according to claim 1 , wherein at least one of the ethylene-α-olefin copolymer (A) or the ethylene-α- ...

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Номер записи: 24
11-01-2018 дата публикации

POLYOLEFIN-BASED COMPOSITIONS, ADHESIVES, AND RELATED MULTI-LAYERED STRUCTURES PREPARED THEREFROM

Номер: US20180010022A1
Автор: Botros Maged G.
Принадлежит: Equistar Chemicals, LP

The present disclosure relates to polyolefin-based compositions made from or containing (A) a butene-1 polymer grafted with an unsaturated monomer, (B) a second polyolefin polymer, and (C) an ethylene-propylene elastomer. In some embodiments, the polyolefin-based composition is further made from or contains an additives composition. In additional embodiments, the polyolefin-based composition is made from or contains a heterophasic polypropylene copolymer. 1. A polyolefin-based composition comprising:(A) a first polymer composition comprising a butene-1 polymer grafted with an unsaturated monomer;(B) a second polymer composition comprising a second polyolefin polymer; and(C) a third polymer composition comprising an ethylene-propylene elastomer.2. The polyolefin-based composition of claim 1 , further comprising an additives composition having one or more additives.3. The polyolefin-based composition of claim 1 , wherein the butene-1 polymer grafted with an unsaturated monomer is a butene-1 polymer grafted with maleic anhydride.4. The polyolefin-based composition of claim 3 , wherein the butene-1 polymer is a plastomer.5. The polyolefin-based composition of claim 1 , wherein the second polyolefin polymer is a polypropylene polymer.6. The polyolefin-based composition of claim 5 , wherein the second polyolefin polymer is a polypropylene random copolymer.7. The polyolefin-based composition of claim 1 , wherein the ethylene-propylene elastomer is selected from the group consisting of:(A) an ethylene-propylene rubber (EPR); and(B) an ethylene-propylene-diene monomer rubber (EPDM).8. The polyolefin-based composition of claim 7 , wherein the ethylene-propylene elastomer is an ethylene-propylene rubber (EPR) comprising:(A) a melt index from 0.2-20.0 grams per 10 minutes; and(B) a total content of ethylene-derived units in an amount from 55-85% by weight, based upon the total weight of the ethylene propylene rubber.9. The polyolefin-based composition of claim 1 , further ...

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Номер записи: 25
10-01-2019 дата публикации

ADHESIVE COMPOSITIONS, ARTICLES INCLUDING THE ADHESIVE COMPOSITIONS, AND METHODS THEREOF

Номер: US20190010367A1
Автор: Opacich Michael Lloyd, Pucci Mark S., Whaley Paul D.
Принадлежит:

The teachings herein are directed at multi-layer films, tie layer compositions for multi-layer films and related methods, and to polymeric adhesive compositions and methods for manufacturing polymeric adhesive compositions. The tie layer composition preferably adhere to polypropylene, and more preferably adheres to both polyethylene and polypropylene. The tie layer preferably includes a propylene based elastomer. The tie layer includes one or more thermoplastic polyolefins. The tie layer composition may include a grafted polyolefin, e.g., having one or more functional grafts. The polymeric adhesive compositions preferably adhere to both polypropylene surfaces and to polyethylene surfaces. The polymeric adhesive composition preferably comprises a minority amount (i.e., less than about 40 weight percent) of a propylene based elastomer polymer and a majority amount (i.e., greater than about 55 weight percent) of an ethylene containing polymer. Preferred methods for manufacturing the polymeric adhesive composition avoids thermal processing (e.g., a cycle of heating above the melting temperature and cooling below the crystallization temperature) of at least a portion (or even all) of the ethylene containing polymer after removing from a polymerization reactor and before compounding with the propylene based elastomer. 1. A polymeric composition comprising:i) from about 0.1 to about 20 weight percent of a grafted polyolefin, wherein the grafted polyolefin has a polyolefin backbone including about 80 weight percent or more ethylene, based on the total weight of the polyolefin backbone, and a functional graft including one or more oxygen atoms;ii) from about 5 to about 34 weight percent of a propylene based elastomer, wherein the propylene based elastomer is a random copolymer having a propylene concentration of about 75 weight percent or more, and a crystallinity of 25 percent or less;iii) from about 40 to about 90 weight percent of one or more polyethylene resins; andiv) ...

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Номер записи: 26
09-01-2020 дата публикации

DIELECTRIC HEATING ADHESIVE FILM AND ADHESION METHOD USING DIELECTRIC HEATING ADHESIVE FILM

Номер: US20200010730A1
Автор: ISHIKAWA Masakazu, Taya Naoki
Принадлежит:

A dielectric welding film for welding a plurality of adherends of the same material or different materials through dielectric heating is provided. The dielectric welding film contains an A component in a form of a thermoplastic resin and a B component in a form of a dielectric filler, the A component including at least one resin selected from the group consisting of an olefin-vinyl acetate copolymer and a maleic anhydride-modified polyolefin, the olefin-vinyl acetate copolymer containing 2 mass % or more constituent unit derived from vinyl acetate. 1. A dielectric welding film configured to weld a plurality of adherends of the same material or different materials through dielectric heating , the dielectric welding film comprising:a thermoplastic resin as an A component; anda dielectric filler as a B component, whereinthe A component comprises at least one resin selected from the group consisting of an olefin-vinyl acetate copolymer and a maleic anhydride-modified polyolefin,the olefin-vinyl acetate copolymer comprises a 2 mass % or more constituent unit derived from vinyl acetate, andthe B component is at least one compound selected from the group consisting of zinc oxide, silicon carbide (SiC), and anatase-type titanium oxide.2. The dielectric welding film according to claim 1 , whereina constituent unit derived from olefin in the olefin-vinyl acetate copolymer and the maleic anhydride-modified polyolefin is derived from ethylene or propylene.3. The dielectric welding film according to claim 1 , wherein the B component is zinc oxide.4. The dielectric welding film according claim 1 , whereina mean particle size of the dielectric filler as the B component measured according to JIS Z 8819-2 (2001) is in a range from 0.1 μm to 30 μm.5. The dielectric welding film according to claim 1 , whereinthe B component generates heat when applied with a high-frequency wave ranging from 1 kHz to 300 MHz.6. A welding method using a dielectric welding film configured to weld a ...

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Номер записи: 27
15-01-2015 дата публикации

POLYCHLOROPRENE-BASED BONDING ADHESIVES

Номер: US20150013879A1
Автор: Attiya Yoel Siyahu, Gorman William B., Kalwara Joseph John, Meyer Daryl D., Taykowski Todd David
Принадлежит:

An adhesive composition comprising a solids component, said solids component including a rubber component that includes polychloroprene; and a solvent component, said solvent component including t-butyl acetate. 1. An adhesive composition comprising:i. a solids component, said solids component including a rubber component that includes polychloroprene; andii. a solvent component, where the solvent component includes from 150 to 500 parts by weight t-butyl acetate, from 50 to 300 parts by weight acetone, from 5 to 100 parts by weight methyl acetate, and where the solvent component further includes 5 to 300 parts by weight toluene per 100 parts by weight rubber.2. The composition of claim 1 , where the solvent component includes from 285 to 310 parts by weight t-butyl acetate claim 1 , from 170 to 190 parts by weight acetone claim 1 , and from 15 to 25 parts by weight methyl acetate claim 1 , per 100 parts by weight rubber.3. The composition of where the solvent component further includes 35 to 45 parts by weight toluene per 100 parts by weight rubber.4. The composition of claim 1 , where the rubber component further includes poly-(styrene-co-butadiene).5. The composition of claim 1 , where the rubber component is devoid of a complementary rubber claim 1 , and where the solids component includes an adhesion promoter.6. An adhesive composition comprising:i. a solids component, said solids component including a rubber component, a synthetic thermosetting resin, and a hydrocarbon resin, where the rubber component includes polychloroprene; andii. a solvent component, said solvent component including 150 to 500 parts by weight t-butyl acetate, from 50 to 300 parts by weight acetone, from 5 to 100 parts by weight methyl acetate, and where the solvent component further includes 5 to 300 parts by weight toluene per 100 parts by weight rubber per 100 parts by weight rubber.7. The adhesive composition of claim 6 , where the rubber component includes at least 70% by weight ...

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Номер записи: 28
14-01-2016 дата публикации

TEMPORARY BONDING LAMINATES FOR USED IN MANUFACTURE OF SEMICONDUCTOR DEVICES AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICES

Номер: US20160013088A1
Автор: FUJIMAKI Kazuhiro, IWAI Yu, KOYAMA Ichiro
Принадлежит: FUJIFILM Corporation

A temporary bonding laminate for use in the manufacture of semiconductor devices and a method for manufacturing semiconductor devices are provided. A member to be processed (a semiconductor wafer or the like) can be temporarily supported securely and readily during a mechanical or chemical process of the member, and then the processed member can be readily released from the temporary support without damaging the processed member even after a high temperature process. The laminate includes: (A) a release layer and (B) an adhesive layer. The release layer contains (a1) a compound being liquid at 25° C. and having a 5% mass reduction temperature of 250° C. or more when measured in a nitrogen gas stream under heating conditions of a constant heating rate of 20° C./min; and (a2) a binder having a 5% mass reduction temperature of 250° C. or more when measured under the same conditions. 1. A temporary bonding laminate for used in a manufacture of semiconductor devices , comprising: (A) a release layer and (B) an adhesive layer ,wherein the release layer comprises (a1) a compound being liquid at 25° C. and having a 5% mass reduction temperature of 250° C. or more when measured in a nitrogen gas stream under heating conditions of a constant heating rate of 20° C./min; and (a2) a binder having a 5% mass reduction temperature of 250° C. or more when measured in a nitrogen gas stream under heating conditions of a constant heating rate of 20° C./min.2. The temporary bonding laminate for used in a manufacture of semiconductor devices according to claim 1 , wherein the release layer (A) has a softening point of 200° C. to 450° C.3. The temporary bonding laminate for used in a manufacture of semiconductor devices according to claim 1 , wherein the binder (a2) is a thermoplastic resin.4. The temporary bonding laminate for used in a manufacture of semiconductor devices according to claim 3 , wherein the thermoplastic resin is at least one kind of thermoplastic resin selected from the ...

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Номер записи: 29
19-01-2017 дата публикации

Propylene-Based Polymers for Use in Adhesive Compositions and Methods to Prepare Thereof

Номер: US20170015876A1
Автор: Austin Jennifer J., Coffey James N., Devorest Yann, Schroeyers Jurgen J.M.
Принадлежит:

The present invention is related to an adhesive composition comprising (a) greater than about 65 wt % of a polymer blend and (b) a polar polyethylene components. The blend has a first and second propylene-based polymer, both different homopolymers of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin. 1. An adhesive composition comprising: [{'sub': 4', '10', '4', '10, 'a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer;'}, 'wherein the polymer blend is present in the amount of about 65 wt % or more based on the adhesive composition;', 'wherein the polymer blend has a melt viscosity, measured at 190° C. of about 900 to about 19,000 cP; and, '(a) a polymer blend comprising'}(b) a polar polyethylene component selected from at least one of an oxidized high density polyethylene wax, a silane-modified polyethylene, ethylene vinyl acetate, ethylene acrylate, organic acid-modified polyethylene, and combinations thereof.2. The adhesive composition of claim 1 , wherein the polar polyethylene component is selected from an oxidized high density polyethylene wax claim 1 , an organic acid-modified polyethylene claim 1 , and combinations thereof.3. The adhesive composition of claim 1 , wherein the ethylene acrylate is selected from an ethylene n-butyl acrylate claim 1 , ethylene methyl acrylate claim 1 , ethylene acrylic acid claim 1 , and combinations thereof.4. The adhesive composition of claim 1 , wherein the adhesive composition has a melt viscosity claim 1 , measured at 177° C. of about 200 to about 5 claim 1 ,000 cP.5. The adhesive composition of claim 1 , further ...

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Номер записи: 30
16-01-2020 дата публикации

ADHESIVE COMPOSITION

Номер: US20200017731A1
Автор: TAKAHASHI Yuzuru
Принадлежит:

The present invention relates to an adhesive composition comprising an α-olefin homopolymer, an α-olefin copolymer having a melting point of 90° C. or higher, a tackifier resin, a wax, and a liquid softener, wherein a complex shear modulus (I) measured immediately after heating the adhesive composition to 180° C. and cooling the same to 20° C. is 1 MPa or less. 1. An adhesive composition comprising:an α-olefin homopolymer;an α-olefin copolymer having a melting point of 90° C. or higher;a tackifier resin;a wax; anda liquid softener,wherein a complex shear modulus (I) measured immediately after heating the adhesive composition to 180° C. and cooling the same to 20° C. is 1 MPa or less.2. The adhesive composition according to claim 1 , wherein the α-olefin homopolymer contains at least one of a 1-butene homopolymer and a propylene homopolymer.3. The adhesive composition according to claim 1 , wherein the α-olefin copolymer contains at least one of a 1-butene/α-olefin copolymer and a propylene/α-olefin copolymer.4. The adhesive composition according to claim 1 , wherein the tackifier resin contains at least one selected from the group consisting of a terpene phenol resin claim 1 , a hydrogenated terpene resin claim 1 , and a hydrogenated petroleum resin.5. The adhesive composition according to claim 1 , wherein the wax contains a polypropylene-based wax.6. The adhesive composition according to having a melt viscosity of 100 Pa·s or less at 180° C.7. The adhesive composition according to claim 1 , wherein a peeling length is 10 mm or less when performing a thermal creep resistance test with a load of 100 g for 24 hours in an atmosphere of 80° C. after bonding adherends via the adhesive composition with an open time of 45 seconds. The present invention relates to a solvent-free non-reactive adhesive composition for automotive interior, which is used when bonding a molded product made of polyolefin or the like and a covering material such as a fabric lined with a ...

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Номер записи: 31
16-01-2020 дата публикации

ADHESIVE HAVING ANTI-INSECT EFFCIENCY

Номер: US20200017733A1
Автор: BYUN Jong Bae, KIM Byoung Il, LEE YOUNG JIN, NA Ja Hyun
Принадлежит:

The present invention relates to an adhesive comprising an anti-insect ingredient comprising a plant extract, wherein the plant extract comprises an extract of , an extract of and an extract of and an adhesive ingredient comprising a binder. The adhesive is environment friendly and does not have any toxic ingredient on a human body and exhibit excellent and synergic anti-insect efficiency by using three plant extracts. Therefore, it is possible to control pests that may have an adverse effect on foods by applying the adhesive to a food package box. 1. An adhesive comprising;{'i': Cinnamomum cassia', 'Syzygium aromaticum', 'Artemisia capillaris, 'an anti-insect ingredient comprising a plant extract, wherein the plant extract comprises an extract of , an extract of and an extract of ; and'}an adhesive ingredient comprising a binder.2Cinnamomum cassiaSyzygium aromaticumArtemisia capillaris. The adhesive according to claim 1 , wherein the extract of claim 1 , the extract of and the extract of are mixed in the plant extract with a weight ratio of about 1 to about 10:about 1 to 1 bout 10:about 1 to about 10.3Cinnamomum cassiaSyzygium aromaticumArtemisia capillaris. The adhesive according to claim 1 , wherein the extract of claim 1 , the extract of and the extract of are mixed in the plant extract with weight ratio of about 1 to about 5:about 1 to about 5:about 1 to about 5.4. The adhesive according to claim 1 , wherein the binder is selected from the group consisting of a rubber-based resin claim 1 , an acryl-based resin claim 1 , a silicone-based resin claim 1 , an urethane-based resin claim 1 , an epoxy-based resin claim 1 , a polyamide-based resin claim 1 , an olefin-based resin claim 1 , an ether-based resin and combination thereof.5. The adhesive according to claim 1 , wherein the binder comprises a rubber-based resin that is selected from the group consisting of a reclaimed rubber-based resin claim 1 , a butyl rubber-based resin claim 1 , styrene-isobutylene-styrene ...

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Номер записи: 32
22-01-2015 дата публикации

Polypropylene impact copolymer based hot melt adhesive

Номер: US20150024649A1
Автор: Czaplewski Patrick John, Gray Steven Daniel
Принадлежит: BOSTIK, INC.

A hot melt adhesive using polypropylene impact copolymers that is particularly well suited for elastic attachment and stretch films in diaper structures. The hot melt adhesive composition is a blend of about 2.5% to about 30%, by weight, of a polypropylene impact copolymer; about 2.5% to about 30%, by weight, of an olefin based elastomer; about 10% to about 70%, by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.; about 0% to about 60%, by weight, of a plasticizer; and about 0.1% to about 5% of a stabilizer or antioxidant. 1. A hot melt adhesive composition , comprising a blend of the following components:about 2.5% to about 30% by weight, of a polypropylene impact copolymer;about 2.5% to about 30% by weight, of an olefin based elastomer;about 10% to about 70% by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.;about 0% to about 60% by weight, of a plasticizer;about 0.1% to about 5% of a stabilizer or antioxidant; andwherein the components total 100% by weight of the composition, and the viscosity of the composition is equal to or less than about 20,000 mPas at 163° C.2. The composition of comprising about 5% to about 20% claim 1 , by weight claim 1 , of the polypropylene impact copolymer.3. The composition of comprising about 7.5% to about 15% claim 1 , by weight claim 1 , of the polypropylene impact copolymer.4. The composition of comprising about 5% to about 20% claim 1 , by weight claim 1 , of the olefin based elastomer.5. The composition of comprising about 7.5% to about 15% claim 1 , by weight claim 1 , of the olefin based elastomer.6. The composition of comprising about 25% to about 65% claim 1 , by weight claim 1 , of the tackifying resin.7. The composition of comprising about 30% to about 60% claim 1 , by weight claim 1 , of the tackifying resin.8. The composition of comprising tackifying resin having a softening point of from about 95° C. to about ...

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Номер записи: 33
25-01-2018 дата публикации

PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20180022965A1
Автор: IGARASHI Takeshi, YAMAMOTO Yasunori
Принадлежит: NITTO DENKO CORPORATION

Provided is a PSA sheet that allows installation of a protection sheet with good shape precision on the surface of an object to be protected. The PSA sheet provided by this invention comprises a substrate whose primary component is a resin film and a PSA layer placed on one face of the substrate. The PSA sheet comprises a protection sheet part which is adhered to an adherend to protect it, a marginal part bounded from the protection sheet part by a tear-off line surrounding the protection sheet part, and a tear-aiding structure provided along the tear-off line. The PSA sheet is configured so that after the protection sheet part is adhered to the adherend, when the marginal part is pulled in a direction in which the PSA sheet is peeled off the adherend, the marginal part is tom off the protection sheet part. 1. A pressure-sensitive adhesive sheet comprising a substrate and a pressure-sensitive adhesive layer placed on a first face of the substrate , whereinthe pressure-sensitive adhesive sheet comprises a protection sheet part to be adhered to an adherend to protect the adherend, a marginal part bounded from the protection sheet part by a tear-off line surrounding the protection sheet part, and a tear-aiding structure provided along the tear-off line,the substrate comprises a resin film as its primary component, andthe pressure-sensitive adhesive sheet is configured so that after the protection sheet part is adhered to the adherend, when the marginal part is pulled in a direction in which the pressure-sensitive adhesive sheet is peeled off the adherend, the marginal part is torn off the protection sheet part.2. The pressure-sensitive adhesive sheet according to being long and wound in a roll claim 1 , and comprising a plurality of the protection sheet parts serially arranged in the length direction of the pressure-sensitive adhesive sheet.3. The pressure-sensitive adhesive sheet according to claim 1 , wherein the tear-aiding structure comprises at least a cut hole or ...

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Номер записи: 34
01-02-2018 дата публикации

STRETCH LAMINATES

Номер: US20180029344A1
Автор: Chen Jinyu, Hamm Marc, Hu Yuhong, Lindner Torsten, Morand Matthias, REZAI Ebrahim, Swain Andy, THATCHER Jennifer, Turner Robert Haines
Принадлежит:

Stretch laminate hot melt adhesives and stretch laminates are described. The stretch laminate hot melt adhesives are suitable for adhering elastic materials with inelastic substrates, and allow permanent deformation of the inelastic substrate and extensions and retractions of the elastic materials. The stretch laminate hot melt adhesive is particularly suitable for back ear lamination for disposable absorbent articles. 1. A stretch laminate hot melt adhesive composition comprising:(a) about 35 to about 70 weight percent of a polypropylene (co)polymer having (i) a heat of fusion less than about 15 J/g measured at 10° C./min heating and cooling rate in accordance with ASTM D3418-12; (ii) a propylene content greater than 50% of the (co)polymer;(b) about 2 to about 15 weight percent of a wax having (i) a heat of fusion greater than 50 J/g measured at 10° C./min heating and cooling rate in accordance with ASTM D3418-12, and (ii) a melting peak greater than 100° C. measured in accordance with ASTM D3418-12; and(c) a tackifier{'sup': 5', '7', '3', '7', '3, 'sub': '80', 'wherein the adhesive has (i) a storage modulus (G′40) of about 5×10to about 5×10Pascal at 40° C., 10 rad/s; (ii) a storage modulus (G′) of about 5×10to about 1×10Pascal at 80° C., 10 rad/s; and (iii) a density range of about 0.75 to about 0.90 g/cmat 160° C. measured in accordance with ASTM D1475.'}2. The adhesive of claim 1 , wherein the propylene (co)polymer is a propylene homopolymer or a blend of propylene homopolymers.3. The adhesive of claim 1 , wherein the propylene (co)polymer is a propylene copolymer or a blend of propylene copolymers.4. The adhesive of claim 1 , wherein the propylene (co)polymer is a blend of a propylene homopolymer and a propylene copolymer.5. The adhesive of claim 1 , wherein the (co)propylene polymer comprises a comonomer selected from the group consisting of C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , C claim 1 , ...

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Номер записи: 35
02-02-2017 дата публикации

POLYOLEFIN BASED HOT MELT ADHESIVE COMPOSITION

Номер: US20170029670A1
Автор: MARCHINI ROBERTA, PASQUALI STEFANO, Pellegatti Giampaolo, Spataro Stefano
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

The present disclosure generally relates to a hot melt adhesive polyolefin composition comprising a high melt flow, butene-1 copolymer suitable to be used as a glue in the paper and packaging industry, in furniture manufacturing, e.g. for edgebands, square edges and softforming, for paneling in high moisture environments, and as a glue in tufted or needle punched carpets. 1. A hot melt adhesive polyolefin composition comprising:(A) a high melt flow butene-1 copolymer containing from 2 to 6% by weight of derived units of ethylene, having a melt flow rate (MFR) measured according to ISO 1133 (190° C., 2.16 kg) ranging from 200 to 1500 g/10′;(B) optionally at least one additional polymer component, selected from the group consisting of amorphous poly-alpha-olefins, thermoplastic polyurethanes, ethylene/(meth)acrylate copolymers, and ethylene/vinyl acetate copolymers and mixtures thereof;(C) optionally at least one additional resin material selected from aliphatic hydrocarbon resin, terpene/phenolic resin, polyterpenes, rosin, rosin esters, derivatives thereof and mixtures thereof;(D) optionally at least a material selected from waxes, oils or mixture thereof.2. A hot melt adhesive polyolefin composition according to claim 1 , wherein the butene-1 copolymer component (A) has a molecular weight distribution (Mw/Mn) lower than 4.3. A hot melt adhesive polyolefin composition according to claim 1 , comprising in percent by weight of the hot melt adhesive composition:from 5 to 85% of component (A);from 0.001-30% of component (B);from 10 to 75% of component (C); andfrom 0.001 to 50% of component (D).4. A hot melt adhesive polyolefin composition according to having viscosity of from 7000 to less than 500000 mPa·sec claim 1 , according to ASTM D 3236-73 claim 1 , at 190° C.5. A packaging industry or furniture items claim 1 , comprising the hot melt adhesive polyolefin composition according to .6. A tufted or needle punched carpets claim 1 , comprising the hot melt adhesive ...

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Номер записи: 36
04-02-2016 дата публикации

LOW APPLICATION TEMPERATURE AMORPHOUS POLY-a-OLEFIN ADHESIVE

Номер: US20160032153A1
Автор: Alvarado Salvador, Desai Darshak, Hu Yuhong, Paul Charles W.
Принадлежит:

It has been discovered that amorphous polybutene copolymers that have a softening point of from about 70 to about 105° C. and viscosity of less than about 1,900 cP at 190° C. possesses desirable properties and may be used to make a low application temperature hot melt adhesive for disposable absorbent articles. 1wherein the hot melt adhesive has a viscosity of less than about 6,000 cP at 150° C.. A hot melt adhesive comprising at least 45 wt %, based on the adhesive, of an amorphous polybutene copolymer having (a) greater than about 50 wt % of 1-butene monomer; (b) comonomers of ethylene, hexene or octene; (c) a softening point of from about 70 to about 105° C.; (d) a viscosity of less than about 1,900 cP at 190° C., and (e) a tan δ value greater than 30 at 140° C. The invention relates to a low application temperature amorphous poly-α-olefin adhesive used on nonwoven articles. The adhesive is particularly useful in the construction of nonwoven articles, e.g., disposable absorbent articles such as diapers, feminine hygiene articles, adult incontinence devices, underpads, bed pads, industrial pads and the like.Hot melt adhesives are applied to a substrate while in a molten state and cooled to harden the adhesive layer. Such adhesives are widely used for various commercial and industrial applications such as product assembly and packaging, and have been widely used in the nonwoven industry to make nonwoven articles. In these applications, adhesive is applied to at least one substrate for binding the substrate to a second similar or different substrate.In a hot melt adhesive, base polymer provides cohesive strength and elasticity. The use of high molecular weight polymer or high polymer content usually promotes cohesive strength and adhesion; however, it also results in significant melt viscosity increase. A hot melt adhesive with high viscosity may require very high processing temperature, at which polymers are susceptible to degradation, charring, gelling and loss of ...

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Номер записи: 37
01-02-2018 дата публикации

Hot-melt adhesive

Номер: US20180030317A1
Автор: Hiroki Fujinami, Kenji Kobayashi
Принадлежит: Idemitsu Kosan Co Ltd

Provided are a hot-melt adhesive having high flowability in a molten state and exhibiting high adhesion strength in bonding PP nonwoven fabrics and further exhibiting high adhesion strength in bonding PE film-PP nonwoven fabric, and a base polymer for a hot-melt adhesive. The hot-melt adhesive contains (A) a propylene-based polymer satisfying the following (Ai) to (Aiv), and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii); and the base polymer for a hot-melt adhesive consists of a mixture of (A) a propylene-based polymer satisfying the following (Ai) to (Aiv) and (B) an olefin-based copolymer satisfying the following (Bi) and (Bii) and satisfies the following (1) and (2). (Ai) the melting point is 120° C. or lower, (Aii) the Mw is 10,000 to 150,000, (Aiii) the Mw/Mn is 2.5 or less, (Aiv) the penetration is 8 or less, (Bi) the penetration is 15 or more, (Bii) the melting point is 90° C. or higher, (1) the tensile elastic modulus at 23° C. is 400 MPa or less, and (2) the semi-crystallization time at 23° C. is 20 minutes or less.

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Номер записи: 38
04-02-2021 дата публикации

Resin composition

Номер: US20210032510A1
Автор: AsMI KOGA, Hiroki Fujinami, Masami Kanamaru, Nozomu FUJII
Принадлежит: Idemitsu Kosan Co Ltd

A resin composition containing at least one selected from the group consisting of an amorphous polyolefin resin (A- 1 ) having a melt endotherm (ΔH-D) of less than 3 Jig and a high-viscosity oil (A- 2 ), and a polypropylene resin (B) having a melt endotherm (ΔH-D) of 3 to 80 J/g, wherein, relative to the total amount 100% by mass of the the amorphous polyolefin resin (A- 1 ), the high-viscosity oil (A- 2 ) and the polypropylene resin (B), the total of the amorphous polyolefin resin (A- 1 ) and the high-viscosity oil (A- 2 ) is 5.0 to 99.5% by mass, and the amount of the polypropylene resin (B) is 0.5 to 95.0% by mass.

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Номер записи: 39
05-02-2015 дата публикации

HOT MELT ADHESIVE COMPOSITION FOR BONDING PACKS OF CONTAINERS

Номер: US20150037579A1
Автор: AXER VERA, Becker Christian, HOLTIN ULRICH, JUERS STEFAN
Принадлежит:

The present invention relates to a hot melt adhesive composition comprising homogeneous linear or substantially linear ethylene/alpha-olefin interpolymers, block copolymers, tackifying resins and waxes, and their use in the bonding of bundles of containers such as bottles or cans into packs. 2. The hot melt adhesive composition of claim 1 , wherein the at least one homogenous linear or substantially linear interpolymer of ethylene and α-olefin is grafted with a dicarboxylic acid anhydride.3. The hot melt adhesive composition of claim 1 , wherein the at least one homogenous linear or substantially linear interpolymer of ethylene and α-olefin has a melt flow index in the range of about 300 to about 1 claim 1 ,500 g/10 min.4. The hot melt adhesive composition of claim 1 , wherein the at least one homogenous linear or substantially linear interpolymer of ethylene and α-olefin has a density of from about 0.860 to about 0.890 g/cm.5. The hot melt adhesive composition of claim 1 , comprising a mixture of at least two different homogenous linear or substantially linear interpolymers of ethylene and α-olefin.6. The hot melt adhesive composition of comprising from about 40 to about 50 weight percent of the at least one homogenous linear or substantially linear interpolymer of ethylene and α-olefin.7. The hot melt adhesive composition of claim 1 , wherein the α-olefin is 1-octene.8. The hot melt adhesive composition of claim 1 , wherein the at least one block copolymer is selected from a group consisting of styrene-ethylene/butylene-styrene (SEBS) and styrene-ethylene/propylene-styrene (SEPS).9. The hot melt adhesive composition of claim 1 , comprising from about 10 to about 15 weight percent of the at least one block copolymer.10. The hot melt adhesive composition of claim 1 , wherein the at least one tackifying resin has a Ring & Ball softening point of about 90° C. or less.11. The hot melt adhesive composition of claim 1 , including a mixture of at least two resins having ...

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Номер записи: 40
05-02-2015 дата публикации

ADHESIVE SHEET

Номер: US20150037596A1
Автор: Matsuda Kenji, Takamori Ai, Tomatsu Itsuro
Принадлежит:

An adhesive sheet comprising a hot-melt adhesive layer. The hot-melt type adhesive layer comprises a modified polymer (A) to which a cross-linkable group is bonded and a polyolefin (B). The adhesive sheet can adhere to various adherends and the adhesive becomes less likely to squeeze out from an adherend in thermal fusion bonding and sealing of the adherend. In a laminate comprising the adhesive sheet the adhesive layer does not squeeze out from the adherend without being affected by the material of the adherend. 1. An adhesive sheet comprising a hot-melt type adhesive layer , wherein the hot-melt type adhesive layer comprises a modified polymer (A) to which a cross-linkable group is given and a polyolefin (B).2. The adhesive sheet according to claim 1 , wherein the modified polymer (A) comprises a functional group containing silicon.3. The adhesive sheet according to claim 1 , wherein the modified polymer (A) comprises an olefin based modified polymer.4. The adhesive sheet according to claim 1 , wherein the modified polymer (A) comprises a modified polymer based on a copolymer of ethylene with at least one different olefin.5. The adhesive sheet according to claim 1 , wherein the polyolefin (B) has a chemical structure derived from propylene.6. The adhesive sheet according to claim 1 , wherein the adhesive layer is bonded to an adherend through an adhesive auxiliary layer.7. A laminate comprising the adhesive sheet of . The present invention relates to an adhesive sheet, and particularly to an adhesive sheet which is used for electric instruments. As used herein, “electric instrument” means an instrument which converts the other energy into electric energy (electricity), an instrument which converts electric energy into another energy, and an instrument which stores electric energy as electric energy or another energy. Specific examples of the electric instrument include: chemical batteries, such as an alkali dry battery and a lithium ion battery; and, physical ...

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Номер записи: 41
08-02-2018 дата публикации

HOT MELT ADHESIVES AND USES THEREOF

Номер: US20180037777A1
Автор: Alexis Valerie, DeJesus Maria Cristina Barbosa, Paul Charles W., Shah Geetanjaliben
Принадлежит:

The disclosure relates to adhesive compositions comprising a semi-crystalline olefin polymer or copolymer and a functional wax, functional olefin polymer, or mixture thereof. These compositions are useful as, for example, adhesives in disposable articles such as diapers, adult incontinence articles, underpads, personal care garments, and the like. 1. A stretch adhesive composition comprising: a heat of fusion (ΔHm) of between about 4 J/g and about 30 J/g;', {'sup': 8', '2', '9', '2, 'a storage modulus (E′) at 40° C. and 1 Hz of between about 3.0×10dyn/cmand about 1.7×10dyn/cm; and'}, 'a viscosity (η) at 200° C. of between about 2 Pa·s and about 100 Pa·s, preferably between about 2 Pa·s and about 20 Pa·s;, 'about 25 wt. % to about 75 wt. %, by weight of the stretch adhesive composition, of a semi-crystalline propylene polymer that is a homo-polymer or co-polymer characterized by'}between about 1 wt. % and about 10 wt. %, by weight of the stretch adhesive composition, of an adhesion promoter that is a functional wax, functional polyolefin, functional tackifier, functional plasticizer, or a mixture thereof; andbetween about 10 wt. % and about 55 wt. %, preferably about 20 wt. % and about 55 wt. %, by weight of the stretch adhesive composition, of a tackifier;wherein the stretch adhesive composition exhibits an initial creep resistance of about 35% or less and an aged creep resistance, after about 28 days at about 40° C., of about 35% or less.2. The stretch adhesive composition of claim 1 , wherein the semi-crystalline propylene polymer is a homo-polymer.3. The stretch adhesive composition of claim 1 , wherein the semi-crystalline propylene polymer is a co-polymer.4. The stretch adhesive composition of claim 1 , wherein the heat of fusion of the semi-crystalline propylene polymer is between 4 J/g and 6 J/g.5. The stretch adhesive composition of claim 1 , wherein the heat of fusion of the semi-crystalline propylene polymer is between 20 J/g and 24 J/g.6. The stretch ...

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Номер записи: 42
08-02-2018 дата публикации

ELASTIC ATTACHMENT HOT MELT ADHESIVE COMPOSITION AND A DISPOSABLE ABSORBENT ARTICLE MADE WITH THE SAME

Номер: US20180037778A1
Автор: Briseno Carlos, Vaughan Steven R.
Принадлежит:

The invention features a hot melt adhesive composition based on olefin polymers that can be used for elastic attachment in the manufacture of a disposable article. The hot melt adhesive includes from about 3 to about 10% by weight of a first propylene-based copolymer having a melt index measured by ASTM D1238 (190° C., 2.16 kg) of no greater than about 5, a second propylene-based polymer with a viscosity at 190° C. of no greater than about 5000 cps, a first tackifying agent having a softening point of at least about 90° C. and from about 5% by weight to about 20% by weight of a plasticizer. 1. A hot melt adhesive composition comprising:a. from about 3 to about 10% by weight of a first propylene-based copolymer having a melt index measured by ASTM D1238 (190° C., 2.16 kg) of no greater than about 5,b. a second propylene-based polymer with a viscosity at 190° C. of no greater than about 5000 cps,c. a first tackifying agent having a softening point of at least about 90° C. andd. from about 5% by weight to about 20% by weight of a plasticizer.2. The hot melt adhesive composition of wherein the first tackifying agent is present at from about 20% to about 70% by weight.3. The hot melt adhesive composition of wherein the first tackifying agent has a softening point of at least about 110° C.4. The hot melt adhesive composition of wherein the first propylene-based copolymer has an ethylene content of no less than about 10.5. The hot melt adhesive composition of wherein the first propylene-based copolymer is present at from about 3% by weight to about 7% by weight.6. The hot melt adhesive composition of wherein the second propylene-based polymer has a viscosity at 190° C. of no greater than about 3 claim 1 ,000 cps.7. The hot melt adhesive composition of wherein the second propylene-based polymer has a viscosity at 190° C. of no greater than about 2 claim 1 ,000 cps.8. The hot melt adhesive composition of wherein the second propylene-based polymer is present at from about 7% ...

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Номер записи: 43
08-02-2018 дата публикации

HOTMELT ADHESIVE WITH ENHANCED UV STABILITY AND USE FOR PRODUCING A MULTILAYER POLYMERIC SHEET

Номер: US20180037779A1
Автор: CORDES Mathias, FUNKE Björn, JANKE Doreen
Принадлежит: SIKA TECHNOLOGY AG

A hotmelt adhesive composition includes at least one polyolefin polymer (P) which is solid at 25° C. and is preferably a thermoplastic poly-α-olefin and more preferably an atactic poly-α-olefin (APAO), at least one polyolefin resin (PH) which is liquid at 25° C. and is preferably based on polyisobutylene, and optionally at least one polyolefin wax (PW) which is preferably a maleic anhydride-grafted polyolefin wax and more preferably a maleic anhydride-grafted polypropylene or polyethylene wax. The hotmelt adhesive composition is notable not only for high intrinsic tack and effective adhesion to low-energy surfaces but also for advantageously high UV integrity. 1. Hot-melt adhesive composition comprising:a) at least one 25° C. solid polyolefin polymer P,b) at least one 25° C. liquid polyolefin resin PH, and optionallyc) at least one polyolefin wax PW.2. Hot-melt adhesive composition according to claim 1 , wherein the polyolefin polymer P is a thermoplastic poly-α-olefin.3. Hot-melt adhesive composition according to claim 1 , wherein the polyolefin polymer P has a softening point claim 1 , as measured by the ring-and-ball method of DIN EN 1238 claim 1 , between 70° C. and 170° C.4. Hot-melt adhesive composition according to claim 1 , wherein the amount of the at least one 25° C. solid polyolefin polymer P is from 10 to 60 wt % based on the hot-melt adhesive composition.5. Hot-melt adhesive composition according to claim 1 , wherein the at least one 25° C. liquid polyolefin resin PH is a polyisobutylene resin.6. Hot-melt adhesive composition according to claim 1 , wherein the amount of the at least one polyolefin resin PH is not less than 30 wt % based on the hot-melt adhesive composition.7. Hot-melt adhesive composition according to claim 1 , wherein the at least one polyolefin wax PW is a maleic anhydride-grafted polyolefin wax.8. Hot-melt adhesive composition according to claim 1 , wherein the amount of the at least one polyolefin wax PW is more than 1 wt % based on ...

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Номер записи: 44
08-02-2018 дата публикации

Adhesive Compositions Made from Propylene-Based Polymers and Crystalline C2/C3 Homopolymer

Номер: US20180037780A1
Автор: Austin Jennifer J., Coffey James N., Kalfus Jan, Schauder Jean-Roch, Schroeyers Jurgen J.
Принадлежит:

The present invention is related to adhesive composition, having a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the polymer blend has a melt viscosity, measured at 190° C. and determined according to ASTM D-3236, of about 1,000 cP to about 5,000 cP; a propylene polymer; and wherein the adhesive composition is substantially free of a functionalized polyolefin, wherein the functionalized polyolefin is selected from at least one of a maleic anhydride-modified polypropylene and a maleic anhydride-modified polypropylene wax. 1. An adhesive composition comprising:{'sub': 4', '10', '4', '10, 'a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the polymer blend has a melt viscosity, measured at 190° C. and determined according to ASTM D-3236, of about 1,000 cP to about 5,000 cP;'}a propylene polymer; andwherein the adhesive composition is substantially free of a functionalized polyolefin, wherein the functionalized polyolefin is selected from at least one of a maleic anhydride-modified polypropylene and a maleic anhydride-modified polypropylene wax.2. The adhesive composition of claim 1 , wherein the polymer blend is present in the ...

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Номер записи: 45
24-02-2022 дата публикации

NEW HOT MELT ADHESIVE FOR CONSTRUCTION OF DISPOSABLE NONWOVEN HYGIENE PRODUCT

Номер: US20220056309A1
Автор: DELORY Bénédicte, HUSSEIN Naji, KOMAR Stéphanie, MANGEANT Magali
Принадлежит:

Hot melt adhesive composition comprising: —from 30% to 55% of a composition (A) consisting of 2 copolymers of propylene and ethylene (A1) and (A2), with Mw of less than 100,000 Da, wherein: —(A1) is an essentially amorphous copolymer, with a DSC melt enthalpy of 10 less than 30 J/g; —(A2) is a semicrystalline copolymer with a DSC melt enthalpy of more than 30 J/g; and —the ratio:weight of (A2)/weight of (A1) is from 0.2 to 1.5; —from 20% to 50% of a tackifying resin (B); and 1—from 2% to 25% of a plasticizer (C) consisting of a liquid polybutene oligomer. 2) Process of manufacturing an assembly product, preferably a disposable nonwoven absorbent article, implementing said hot melt adhesive composition. 115-. (canceled)16. Hot melt adhesive composition comprising: (A1) is an essentially amorphous copolymer, with a DSC melt enthalpy of less than 30 J/g;', '(A2) is a semicrystalline copolymer with a DSC melt enthalpy of more than 30 J/g; wherein a ratio of weight of (A2)/weight of (A1) is from 0.2 to 1.5;, 'from 30% to 55% of a composition (A) comprising 2 thermoplastic unimodal copolymers of propylene and ethylene (A1) and (A2), each having a weight average molecular weight (Mw) of less than 100,000 Da, whereinfrom 20% to 50% of a tackifying resin (B); andfrom 2% to 25% of a plasticizer (C) comprising a liquid polybutene oligomer.17. Hot melt adhesive composition according to claim 16 , wherein (A1) and (A2) are random copolymers of propylene and ethylene having from about 70% by weight to about 99% by weight of propylene.18. Hot melt adhesive composition according to claim 16 , wherein each of (A1) and (A2) include an isotactic polypropylene chain sequence.19. Hot melt adhesive composition according to claim 16 , wherein the weight average molecular weight of (A1) is from about 5 claim 16 ,000 to 60 claim 16 ,000 Da and the weight average molecular weight of (A2) is from about 10 claim 16 ,000 g/mole to about 100 claim 16 ,000 Da.20. Hot melt adhesive composition ...

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Номер записи: 46
12-02-2015 дата публикации

HOT-MELT ADHESIVE FOR ELECTRIC INSTRUMENTS

Номер: US20150045509A1
Автор: Matsuda Kenji, Takamori Ai, Tomatsu Itsuro
Принадлежит:

There are provided a hot-melt adhesive, which is excellent in solvent resistance and is excellent in adhesion to an adherend (specifically, a polyimide film) containing an electrolytic solution of a battery therein, and also can contribute to an improvement in performances of electric instruments; and an electric instrument produced by using such hot-melt adhesive. 1. A hot-melt adhesive for electric instruments , comprising an olefin based modified polymer (A) , wherein the olefin based modified polymer (A) has a functional group containing silicon.2. The hot-melt adhesive for electric instruments according to claim 1 , wherein the olefin based modified polymer (A) has an alkoxysilyl group.3. The hot-melt adhesive for electric instruments according to claim 1 , wherein the olefin based modified polymer (A) includes a modified polymer based on a copolymer of ethylene with the other olefin.4. The hot-melt adhesive for electric instruments according to claim 1 , which further comprises a polyolefin (B).5. An electric instrument comprising a hot-melt adhesive comprising an olefin based modified polymer (A) claim 1 , wherein the olefin based modified polymer (A) has a functional group containing silicon.6. The electric instrument of claim 5 , wherein the olefin based modified polymer(A) has an alkoxysilyl group.7. The electric instrument of claim 5 , wherein the olefin based modified polymer (A) includes a modified polymer based on a copolymer of ethylene with the other olefin.8. The electric instrument of claim 5 , which further comprises a polyolefin (B). The present invention relates to a hot-melt adhesive which is used for electric instruments. As used herein, the “electric instrument” means an instrument which converts another energy into electric energy (electricity), an instrument which converts electric energy into another energy, and an instrument which stores electric energy as electric energy or another energy. Specific examples of the electric instrument ...

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Номер записи: 47
12-02-2015 дата публикации

Polyolefin Adhesive Compositions and Methods for Preparing the Same

Номер: US20150045513A1
Автор: Barsan Florin, Berti Douglas A., Ravishankar Periagaram S., Stephens Luke P., Wang Yu Feng
Принадлежит:

A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a Cto Colefin comonomer; and a second polymer, wherein the second polymer is a propylene homopolymer and a propylene copolymer having an ethylene or a Cto Colefin comonomer, and wherein the first polymer and second polymer have a difference in heat of fusion of about 25 J/g or more. Methods for making such a polymer product using at least two reactors in parallel and for separating a propylene-based polymer from a solvent using a liquid-phase separator are also disclosed. 1. A method of making a multimodal polymer product comprising:{'sub': 4', '10, 'producing a first polymer in a first reactor, wherein the first polymer is a propylene homopolymer or a propylene copolymer having an ethylene or a Cto Colefin comonomer;'}{'sub': 4', '10, 'producing a second polymer in a second reactor in parallel with the first reactor, wherein the second polymer is a propylene homopolymer or a propylene copolymer having an ethylene or a Cto Colefin comonomer, and wherein the first polymer and second polymer have a difference in heat of fusion of about 25 J/g or more;'}combining the first polymer and the second polymer to form a multimodal polymer blend; andpelletizing the multimodal polymer blend to form a plurality of pellets comprising the multimodal polymer blend.2. The method of claim 1 , wherein the difference in heat of fusion between the first polymer claim 1 , and second polymer is about 30 J/g or more.3. The method of claim 2 , wherein the first polymer has a heat of fusion of about 60 J/g or more claim 2 , and the second polymer has a heat of fusion of about 30 J/g or less.4. The method of claim 3 , wherein the first polymer has a heat of fusion of about 65 J/g to about 85 J/g claim 3 , and the second polymer has a heat of fusion of about 10 J/g to about 20 J/g.5. The method of claim 2 , ...

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Номер записи: 48
12-02-2015 дата публикации

BUFFERED ADHESIVE COMPOSITIONS FOR SKIN-ADHERING MEDICAL PRODUCTS

Номер: US20150045711A1
Автор: Murahata Richard Iwao, Taylor Michael Gerard
Принадлежит: HOLLISTER INCORPORATED

Provided are buffered adhesive compositions comprising a high molecular weight non-neutralized polymeric acid and a high molecular weight partially neutralized polymeric acid and products such as wound dressings, ostomy skin barriers, and ostomy barrier rings incorporating the compositions. 1. An adhesive composition for a skin-adhering medical device comprising a high molecular weight polymeric buffer composition which provides both pH buffering and fluid absorption and which comprises a non-neutralized high molecular weight polymeric acid and a partially neutralized high molecular weight polymeric acid.2. The adhesive composition of wherein the non-neutralized high molecular weight polymeric acid and the partially neutralized high molecular weight polymeric acid are each independently selected from the group consisting of polyacrylic acid claim 1 , poly(2-alkyl acrylic acid) claim 1 , copolymers of acrylic acid and 2-alkyl acrylic acid monomers claim 1 , copolymers of acrylic acid and 2-alkyl acrylic acid monomers with maleic acid claim 1 , and olefinic polymers substituted with side chains containing free carboxylic acid groups claim 1 , wherein alkyl is from one to five carbons in length and may be straight chain or branched chain.3. The adhesive composition of which further comprises a pressure-sensitive adhesive selected from the group consisting of natural rubbers claim 1 , synthetic rubbers claim 1 , styrene block copolymers claim 1 , polyvinyl ethers claim 1 , poly(meth)acrylates (including both acrylates and methacrylates) claim 1 , polyolefins and silicones.4. The adhesive composition of wherein the pressure-sensitive adhesive is polyisobutylene.5. The adhesive composition of which further comprises styrene-isoprene-styrene block copolymer6. The adhesive composition of which further comprises fibers selected from the group consisting of cotton fibers claim 1 , polyethylene fibers claim 1 , and polypropylene fibers.7. The adhesive composition of wherein ...

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Номер записи: 49
25-02-2016 дата публикации

Production method for laminate film, laminate film, and production method for semiconductor device employing same

Номер: US20160053137A1
Автор: Eiji Hayashishita
Принадлежит: Mitsui Chemicals Tohcello Inc

Provided is a manufacture method of a laminate film accurately precut into a desired shape. The manufactured laminate film comprises an elongated release film having thereon a plurality of insular adhesive films (A) and (B) mutually adjacent in the lengthwise direction, and the method includes: obtaining an elongated laminate having a release film and an adhesive film; precutting the adhesive film to obtain a first peeling part; and peeling off the first peeling part from the release film. The first peeling part includes peripheral parts (A 1 ) and (B 2 ) of insular adhesive films (A) and (B) respectively positioned at one and the other widthwise end side of the release film; and connection part (C) connecting peripheral parts (A 1 ) and (B 2 ), but not including peripheral parts (A 2 ) and (B 1 ) of insular adhesive films (A) and (B) respectively positioned at the other and the one widthwise end side of the release film.

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Номер записи: 50
21-02-2019 дата публикации

Amphiphilic Graft Copolymers And Medical Devices With Enhanced Bond Strength

Номер: US20190055436A1
Автор: DATASHVILI Tea, Hermel-Davidock Theresa
Принадлежит:

Amphiphilic graft copolymers comprise a polypropylene backbone and hybrid micromolecule side-chains based on organo-functional silanes (PP-g-XSiOA) in the presence of a co-agent, for example, difunctional metallic diacrylate monomers, where “X” is an organic group or an organo-functional group, and “A” is a metal, an inorganic oxide, an inorganic hydroxide, or any other inorganic material. X may be derived from a compound selected from the group consisting of epoxy, amino, acrylate, methacryloxy, and vinyl; and A is selected from the group consisting of: silicon, (Si), aluminum (Al), iron (Fe), titanium (Ti), silver (Ag), zinc (Zn), nickel (Ni), calcium (Ca), copper (Cu), tin (Sn); oxides thereof; hydroxides thereof; and mixtures of the foregoing. These copolymers are suitable for forming medical devices and/or as additives to base polymeric formulations for medical devices for improving laser marking, antimicrobial resistance, adhesive free bond strength, paintability and dyeability. 2. The amphiphilic copolymer of claim 1 , wherein the inorganic-organic hybrid micromolecule is a reaction product of an organo-silane and an inorganic oxide and/or hydroxide.3. The amphiphilic copolymer of claim 1 , wherein X is derived from a compound selected from the group consisting of epoxy claim 1 , amino claim 1 , acrylate claim 1 , methacryloxy claim 1 , and vinyl; and A is selected from the group consisting of: silicon claim 1 , (Si) claim 1 , aluminum (Al) claim 1 , iron (Fe) claim 1 , titanium (Ti) claim 1 , silver (Ag) claim 1 , zinc (Zn) claim 1 , nickel (Ni) claim 1 , calcium (Ca) claim 1 , copper (Cu) claim 1 , tin (Sn); oxides thereof; hydroxides thereof; and mixtures of the foregoing.4. The amphiphilic copolymer of claim 1 , wherein the inorganic-organic hybrid micromolecule grafted to the polypropylene is a reaction product of an organo-functional silane with an inorganic oxide and/or hydroxide in solution claim 1 , wherein a weight ratio of the organo-functional ...

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Номер записи: 51
01-03-2018 дата публикации

AMORPHOUS PROPYLENE-ETHYLENE COPOLYMERS

Номер: US20180057624A1
Автор: Cottle Raymond Prescott, Hagood Andrea Gail, Muvundamina Mutombo Joseph, Novak Bennett H., Rajesh Raja Puthenkovilakom, Robe Gary Robert, Somers Marc Stacey, Sood Dhiraj Sudesh, Williams Timothy
Принадлежит: EASTMAN CHEMICAL COMPANY

A low molecular weight copolymer is provided comprising propylene and ethylene, 1. A low molecular weight copolymer comprising propylene and ethylene ,wherein said low molecular weight copolymer has a softening point in the range of 90 to 140° C.,wherein said low molecular weight copolymer has a needle penetration that is equal to y, {'br': None, 'i': y≦−', 'x', 'x', 'x', 'x', 'x', 'x−, 'sup': 6', '5', '4', '3', '2, '0.000000262249+0.000172031278−0.046669720165+6.701746779438−537.286013331959+22,802.983472587400,204.018086126'}, 'wherein y is defined by the following formulawherein x in the above formula is the softening point of said low molecular weight copolymer,wherein said low molecular weight copolymer has a molecular weight polydispersity index of about 3 to about 25, a crystallinity of about 18% to about 30% measured by X-Ray diffraction, and a Brookfield viscosity in the range of about 1000 to about 4000 cp at 190° C. measured by ASTM D 3236.2. The low molecular weight copolymer of wherein said copolymer has a crystallinity content of about 20% to about 30%.3. The low molecular weight copolymer of wherein said copolymer has a weight average molecular weight of 25 claim 1 ,000 to 50 claim 1 ,000.4. The low molecular weight copolymer of wherein said copolymer has a weight average molecular weight of 30 claim 3 ,000 to 45 claim 3 ,000.5. The low molecular weight copolymer of wherein said copolymer has a molecular weight polydispersity index of about 8 to about 23.6. The low molecular weight copolymer of wherein said copolymer has a molecular weight polydispersity index of about 6 to about 15.7. The low molecular weight copolymer of wherein said number average molecular weight ranges from about 1 claim 1 ,000 to about 20 claim 1 ,000.8. The low molecular weight copolymer of wherein said Brookfield viscosity ranges from about 1 claim 1 ,500 to about 3 claim 1 ,000.9. The low molecular weight copolymer of wherein the storage modulus (G′) at 25° C. of said low ...

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Номер записи: 52
01-03-2018 дата публикации

ADHESIVE SHEET

Номер: US20180057719A1
Автор: EGUCHI Rikito, NAKASHIMA Mikio, TAKATA Yoshikuni, YOSHIZUMI Takemi
Принадлежит: NAKASHIMA RUBBER INDUSTRY CO., LTD.

The adhesive sheet for bonding an unvulcanized rubber to a metal, including, a release film, which includes a first film layer made of polypropylene and a second film layer made of polyethylene terephthalate, and which is formed as an integrated film, an upper adhesive layer obtained by applying a solvent dispersed type vulcanization adhesive having reactivity with the unvulcanized rubber to a side of the first film layer of the release film and drying the solvent dispersed type vulcanization adhesive, and a lower adhesive layer obtained by, after drying the upper adhesive layer, applying an adhesive having reactivity with the metal onto the upper adhesive layer, and by drying the adhesive. 1. An adhesive sheet for bonding an unvulcanized rubber to a metal , comprising:a release film having a first film layer made of polypropylene and a second film layer made of polyethylene terephthalate, the first film layer and the second film layer formed as an integrated film;an upper adhesive layer formed by applying a solvent dispersed type vulcanization adhesive having reactivity with the unvulcanized rubber to a side of the first film layer of the release film, and by drying the solvent dispersed type vulcanization adhesive; anda lower adhesive layer formed, after drying the upper adhesive layer, applying an adhesive having reactivity with the metal onto the upper adhesive layer, and by drying the adhesive.2. An adhesive sheet according to claim 1 , wherein the first film layer has a thickness smaller than a thickness of the second film layer.3. An adhesive sheet according to claim 1 ,wherein the integrated film is formed by applying an adhesive to any one of the first film layer and the second film layer to pressure and bond the first film layer and the second film layer with each other, andwherein the first film layer and the second film layer are capable of being separated from the release film after the upper adhesive layer and the lower adhesive layer are formed into ...

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Номер записи: 53
02-03-2017 дата публикации

Continuous Extrusion Process to Prepare Hot Melt Adhesive Compositions

Номер: US20170058153A1
Автор: Bernaerts Rudi, Devorest Yann, Schauder Jean-Roch H., Schroeyers Jurgen J.M.
Принадлежит:

A method of preparing a hot melt adhesive composition, comprising (A) feeding a polymer blend into an extruder; wherein the polymer blend comprises (a) a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C-Calpha-olefin; and (b) a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C-Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend has a melt viscosity of 1,000 cP to 20,000 cP at 190° C.; (B) feeding one or more adhesive components, selected from at least one of a tackifier, wax, antioxidant, functionalized polyolefin, oil, and combinations thereof, into the extruder; and (C) recovering an extrudate from the extruder, wherein the extrudate is a hot melt adhesive composition. 1. A method of preparing a hot melt adhesive composition , comprising the steps of: {'sub': 4', '10', '4', '10, 'wherein the polymer blend comprises (a) a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; and (b) a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend has a melt viscosity of about 1,000 cP to about 30,000 cP at 190° C.;'}, '(a) feeding a polymer blend into an extruder;'} 'wherein the adhesive components is selected from at least one of a tackifier, wax, antioxidant, functionalized polyolefin, oil, plasticizers, and combinations thereof; and', '(b) feeding one or more adhesive components into the extruder;'}(c) recovering an extrudate from the ...

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Номер записи: 54
02-03-2017 дата публикации

Filter to Prepare Low Molecular Weight Polymers for Adhesive Compositions

Номер: US20170058154A1
Автор: Berti Douglas A., Hancock Kyle B., Reed Aaron H.
Принадлежит:

This invention relates to a process for producing a low molecular weight polyolefin adhesive component, the process including the steps of (a) cooling a polymer solution to a temperature less than or equal to about its cloud point to form a cooled polymer solution; () filtering the cooled polymer solution using a filter, wherein the polymer solution includes a low molecular weight polyolefin adhesive component and a solvent; and (b) recovering the solvent and the polyolefin. 1. A process for producing a low molecular weight polyolefin adhesive component , the process comprising:(a) cooling a polymer solution to a temperature less than or equal to about its cloud point to form a cooled polymer solution; 'wherein the polymer solution comprises a low molecular weight polyolefin adhesive component and a solvent; and', '(b) filtering the cooled polymer solution using a filter;'}(c) recovering the solvent and the polyolefin.2. The process claim 1 , wherein the polymer solution has a cloud point of greater than about −50° C. to less than about 40° C.3. The process of claim 1 , wherein the filter comprises a basket claim 1 , and wherein a cooling medium passes through the basket.4. The process of claim 3 , wherein the cooling medium is selected from at least one of liquid propylene claim 3 , ethylene claim 3 , glycol claim 3 , and freon claim 3 , and wherein the cooling medium has a temperature of about −28° C. to about 10° C.5. The process of claim 1 , wherein the solvent is a hydrocarbon solvent selected from at least one of isohexane and n-hexane.6. The process of claim 1 , wherein the polyolefin has a weight average molecular weight of from about 1 claim 1 ,000 g/mol to about 200 claim 1 ,000 g/mol.7. The process of claim 1 , wherein the polyolefin has a melt viscosity of about 80 cP to about 500 cP.8. The process of claim 3 , wherein the filter basket has openings with a diameter of about 0.1 to about 10 microns.9. A low molecular weight polyolefin prepared by the ...

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Номер записи: 55
02-03-2017 дата публикации

Adhesive Compositions for Nonwoven Applications

Номер: US20170058155A1
Автор: Austin Jennifer J., Tripathy Ranjan
Принадлежит:

The present invention is related to a polymer blend, having a melt viscosity at 190° C. of 3,000 cP to 12,000 cP, and one or more tackifiers, having a softening point of 80° C. to 145° C., an aromaticity of 3 mol % to 11 mol % aromatic protons, and a Cloud Point of −10° C. to 15° C. for use in an adhesive composition. The polymer blend includes a first propylene-based polymer and a different second propylene-based polymer, both selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin. 1. An adhesive composition comprising: [{'sub': 4', '10', '4', '10, '(i) a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin wherein the second propylene-based polymer is different than the first propylene-based polymer;'}, '(ii) ethylene-based polymer; or', '(iii) propylene-based homopolymer; and, '(a) a polymer blend comprising'} 'wherein the one or more tackifiers has a softening point as determined by ASTM E-28 of about 80° C. to about 145° C., an aromaticity of about 3 mol % to about 11 mol % aromatic protons, and a Cloud Point of about -10° C. to about 15° C.', '(b) one or more tackifiers;'}2. The adhesive composition of claim 1 ,wherein the polymer blend has a melt viscosity, measured at 190° C. of about 3,000 cP to about 12,000 cP; andwherein the polymer blend is present in the amount of about 50 wt % to about 90 wt % of the adhesive composition.3. The adhesive composition of claim 1 , wherein the polymer blend comprises the ethylene-based polymer selected from the group consisting of ethylene vinyl acetate and a polyethylene.4. The adhesive composition of claim 3 , wherein the ethylene vinyl acetate has about 15 wt % to about 40 wt % vinyl ...

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Номер записи: 56
02-03-2017 дата публикации

Adhesive Compositions with Syndiotactic-Rich Polyolefins

Номер: US20170058156A1
Автор: Tse Mun Fu
Принадлежит: ExxonMobil Chemical Patents Inc.

The present invention is related to adhesive compositions comprising a polymer blend of at least two different propylene-based polymers and one or more syndiotactic-rich polyolefins. The syndiotactic-rich polyolefin comprises greater than about 50 wt % of a C-Calpha olefins and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer. 1. An adhesive composition comprising:i) a polymer blend comprising{'sub': 4', '10', '4', '10, 'a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer;'}wherein the polymer blend has a melt viscosity, measured at 190° C. of about 900 cP to about 19,000 cP; and{'sub': 3', '40, 'ii) a syndiotactic-rich polyolefin comprising greater than about 50 wt % of a C-Calpha olefin and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer, a heat of fusion of 10 joules/g or less, and a g′ index of about 0.9 to about 1.5.'}2. The adhesive composition of claim 1 , having a (C*BV) value ≧4900 (wt %*cP).3. The adhesive composition of claim 1 , comprising at least 5 wt % of the syndiotactic-rich polyolefin.4. The adhesive composition of claim 1 , comprising at least 10 wt % of the syndiotactic-rich polyolefin.5. The adhesive composition of claim 1 , wherein the syndiotactic-rich polyolefin has at least about 58% r dyads.6. The adhesive composition of claim 1 , wherein the syndiotactic-rich polyolefin further comprises greater than about 60 wt % propylene.7. The adhesive composition of claim 1 , wherein the syndiotactic-rich polyolefin has a weight average ...

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Номер записи: 57
05-03-2015 дата публикации

Adhesive Propylene Polymer Composition Suitable for Extrusion Coating of Paper Substrates

Номер: US20150065640A1
Автор: Laiho Erkki, Nummila-Pakarinen Auli, Pachner Elke, Rajala Hanna, Sainio Markku, Yli-Peltola Juha
Принадлежит: Borealis AG

Two-component adhesion composition suitable for extrusion coating paper substrates comprising: 1. Two-component adhesion composition suitable or extrusion coating paper substrates comprising:a) from 70 to 98 of high melt strength polypropylene (A) with a branching index g′ of 0.9 or less; and (i) polypropylene homopolymer with high melt flow rate; or', '(ii) ethylene-vinyl acetate-based hot melt adhesive., 'b) from 2 to 30 wt % of a component (B) selected from the group of2. Composition according to claim 1 , wherein the high melt strength polypropylene (A) is a propylene homopolymer.3. Composition according to claim 1 , wherein the high melt flow rate polypropylene homopolymer (i) has a melt flow rate measured according to ISO 1133 at 230° C. under a load of 2.16 kg of from 50 to 3000 g/10 min.4. Composition according to claim 1 , wherein the high melt flow rate polypropylene homopolymer (i) has been obtained by a controlled rheology technology using organic peroxides.5. Composition according to claim 1 , wherein the ethylene-vinyl acetate-based hot melt adhesive (ii) contains ethylene-vinyl acetate-copolymers with 15 to 45 wt % vinyl acetate and having a melt index (ISO 1133 claim 1 , 190° C. claim 1 , 2.16 kg) in the range of 2 to 2500 g/10 min.6. Composition according to claim 1 , wherein the high melt strength polypropylene (A) has been obtained by treating an unmodified polypropylene (A′) with a peroxide and optionally with a bifunctional monomer. This application is a divisional application of U.S. application Ser. No. 12/990,026, filed on Jan. 10, 2011, as National Stage Application under 35 U.S.C. §371 of PCT/EP2009/054892, filed Apr. 23, 2009, which claims priority to European Application No. EP 08103741.8, filed Apr. 28, 2008, the disclosures of which are incorporated by reference here in their entireties.The present invention relates to polypropylene-based adhesive compositions, which are suitable for extrusion coating especially of paper substrates.In ...

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Номер записи: 58
28-02-2019 дата публикации

ADHESIVE SHEET FOR SEALING METAL TERMINALS OF FLAT ELECTROCHEMICAL CELL

Номер: US20190061327A1
Автор: AKITA Hiroshisa, MOCHIZUKI Youichi, NISHIDA Sumito, OKUSHITA Masataka
Принадлежит:

In a packaging body provided with at least an inner layer composed of a thermal-adhesive polyolefin based resin and a barrier layer composed of a metal foil, in which metal terminals are sealed by the thermal-adhesive resin with unconnected ends of the metal terminals protruding outside, an adhesive sheet for sealing metal terminals of a flat electrochemical cell which is not only able to prevent a short circuit between the barrier layer and the metal terminals but high in a layer-to-layer adhesive strength and a low possibility of a reduction in battery performance to be caused due to invasion of moisture is provided. In the adhesive sheet for sealing a metal terminal part of a flat electrochemical cell according to the invention, a fibrous sheet or a porous sheet is covered by the inner layer and an acid-modified polyolefin based resin layer having adhesive properties. 1. An adhesive sheet for sealing metal terminals of a flat electrochemical cell , [ an inner layer formed of a polyolefin based thermal-adhesive resin and', 'a barrier layer formed of a metal foil,, 'a packaging material provided with, at least,'}, 'an electrochemical device provided with a positive electrode and a negative electrode, and', 'metal terminals connected to the positive electrode and the negative electrode, respectively,', 'the electrochemical device being enclosed in the packaging material and sealed therein by the thermal-adhesive resin at edges of the packaging material,', 'the metal terminals being held between edges of the packaging material, with unconnected ends of the metal terminals protruding outside,, 'the flat electrochemical cell including'}the adhesive sheet being interposed between the inner layer and the metal terminals where the metal terminals protrude out through the packaging material,whereinthe adhesive sheet is a fibrous sheet or a porous sheet coated on both sides with an acid-modified polyolefin based resin layer adhesive to the inner layer and the metal ...

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Номер записи: 59
10-03-2016 дата публикации

Hot Melt Adhesive

Номер: US20160068716A1
Автор: William L. Bunnelle
Принадлежит: IFS Industries Inc

A hot melt adhesive material and articles made using the hot melt adhesive to assemble structures in an article. The adhesive material typically is manufactured by blending amorphous polymer with a heterophase polymer having crystallinity into an adhesive composition.

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Номер записи: 60
27-02-2020 дата публикации

SEALANTS FOR INSULATING GLASS UNITS

Номер: US20200062644A1
Автор: Brooks Rodney Ralph, HUDSON John Michael, Pears David Alan, SAGNAT Isabelle Anne Marie, WARUNEK Magdalena Agnieszka
Принадлежит: TREMCO ILLBRUCK LIMITED

Sealants for insulated glass units or solar panels are disclosed. The sealant comprises polyisobutylene and a polymer which is a copolymer obtained from the polymerisation of at least one ethylenically-unsaturated aliphatic hydrocarbon monomer and at least one monomer containing a maleic anhydride moiety. The copolymer comprises at least one amphiphilic polymer side chain. Processes for producing the sealants for insulated glass units or solar panels are also disclosed. Insulted glass units and solar panels comprising the sealant are also disclosed. Processes for producing the insulated glass units and solar panels comprising the sealant are also disclosed. 2. A sealant according to claim 1 , wherein Q is obtained by the copolymerisation of a mixture of monomers comprising at least an ethylenically-unsaturated aliphatic hydrocarbon monomer and at least one monomer containing a maleic anhydride moiety.3. A sealant according to claim 2 , wherein the ethylenically-unsaturated aliphatic hydrocarbon monomer is selected from ethylene or propylene.4. A sealant according to claim 1 , wherein the monomer containing a maleic anhydride moiety is maleic anhydride.5. A sealant according to claim 1 , wherein the malcic anhydride moieties present in Q are modified by a reaction with a side chain precursor such that at least a proportion of the maleic anhydride units comprise pendant —Y—R side chains covalently attached thereto.6. A sealant according to claim 5 , wherein the pendant —Y—R side chains are covalently attached to the maleic anhydride units by an ester or an amide linkage.7. A sealant according to claim 1 , wherein Q further comprises a unit obtained by the inclusion of a second or further ethylenically-unsaturated monomer species in the copolymerisation reaction.8. A sealant according to claim 1 , wherein Q is a terpolymer formed by the polymerisation of a first ethylenically-unsaturated aliphatic hydrocarbon monomer species claim 1 , a maleic anhydride monomer claim 1 ...

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Номер записи: 61
12-03-2015 дата публикации

ADHESIVES COMPRISING REACTION PRODUCT OF HALOGENATED POLY(ISOBUTYLENE) COPOLYMERS AND POLYAMINES

Номер: US20150072143A1
Автор: Bieber Pierre R., Chatterjee Joon, Gaddam Babu N., Goeb Siegfried R., Lee Hae-Seung
Принадлежит:

Adhesive composition are described comprising the reaction product of at least one halogenated copolymer of isobutylene wherein halogen atoms of the copolymer are replaced by a polyamine having a melting point greater than 25° C., thereby crosslinking the copolymer. The isobutylene copolymer comprises halogenated repeat units derived from isoprene, butadiene, para-alkyl styrene, or a combination thereof. The adhesive composition comprises a copolymer of isobutylene repeat units and second repeat units selected from alkene repeat units, para-methyl styrene repeat units, or a combination thereof wherein at least a portion of the second repeat units are directly bonded to one another with a polyamine crosslinker having a melting point greater than 25° C. Also described are adhesive articles, such as tapes, comprising such adhesives. 1. An adhesive composition comprising the reaction product of at least one halogenatedcopolymer of isobutylene wherein halogen atoms of the copolymer are replaced by a cyclic aliphatic polyamine having a melting point greater than 25° C., thereby crosslinking the copolymer.23-. (canceled)4. The adhesive composition of wherein the polyamine crosslinker has a melting point of at least 100° C.5. The adhesive composition of comprising greater than 0% by weight but less than 10% by weight of isobutylene copolymer units bonded to each other.6. The adhesive composition of wherein the isobutylene copolymer comprises halogenated repeat units derived from isoprene claim 1 , butadiene claim 1 , para-alkyl styrene claim 1 , or a combination thereof.9. The adhesive composition of wherein the halogenated copolymer has a molecular weight (Mw) of 50 claim 1 ,000 to 5 claim 1 ,000 claim 1 ,000.10. The adhesive composition of wherein the halogenated copolymer has a molecular weight no greater than 1 claim 9 ,000 claim 9 ,000 g/mole or 500 claim 9 ,000 g/mole.11. The adhesive composition of further comprising 5 to 50 wt.-% of tackifier.12. The adhesive ...

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Номер записи: 62
29-05-2014 дата публикации

ADHESIVES AND USE THEREOF

Номер: US20140147669A1
Автор: Desai Darshak, Hu Yuhong, THATCHER Jennifer
Принадлежит: HENKEL US IP LLC

The invention provides adhesives and methods of using the adhesives to bond substrates together, and to articles of manufacture comprising the adhesives. It has been discovered that an adhesive with a polymer content greater than 70 weight percent can be formulated with a blend of (i) a metallocene catalyzed polypropylene polymer that has a density range of about 0.70 to about 0.91 g/cmand a melt viscosity less than 50,000 cP at 190° C. and (ii) a Ziegler-Natta catalyzed amorphous polybutene and/or polypropylene copolymer. Such adhesives have high creep resistance making them particularly well suited for disposable personal care garments. 2. The adhesive of wherein the adhesive comprises less than about 25 wt % of a tackifier and/or diluent.3. The adhesive of wherein the metallocene catalyzed polypropylene polymer further comprises a C-Cα-olefin comonomer.4. The adhesive of wherein the metallocene catalyzed polypropylene polymer is an isotatic polypropylene.5. The adhesive of wherein the metallocene catalyzed polypropylene polymer is an atactic polypropylene.6. The adhesive of wherein the viscosity of the Ziegler-Natta catalyzed amorphous polymer ranges from about 500 cP to about 3 claim 1 ,000 cP at 190° C.7. The adhesive of wherein the Ziegler-Natta catalyzed amorphous polymer is the polybutene copolymer claim 1 , which comprises a C-C claim 1 , C-Cα-olefin comonomer.8. The adhesive of wherein the Ziegler-Natta catalyzed amorphous polymer is the polypropylene copolymer claim 1 , which comprises a C claim 1 , C-Cα-olefin comonomer.9. The adhesive of wherein the ratio of (i) the metallocene catalyzed polypropylene polymer to (ii) the Ziegler-Natta catalyzed amorphous polymer ranges from about 1:10 to about 1:1.10. The adhesive of wherein the tackifier is selected from the group consisting of natural and modified polyterpenes claim 1 , cyclic or acyclic Cresins claim 1 , cyclic or acyclic Cresins claim 1 , aliphatic and aromatic petroleum hydrocarbon resins claim 1 , ...

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Номер записи: 63
07-03-2019 дата публикации

LOW MOLECULAR WEIGHT BUTENE-1-CO-HEXENE-1 AMORPHOUS POLY ALPHA OLEFINS FOR HOT MELT ADHESIVES WITH ENHANCED PROPERTIES

Номер: US20190071592A1
Автор: Fowler Nick, Passmore John, Sustic Andres
Принадлежит:

A hot-melt adjuvant-free formulation includes a butene--co-hexene-1 copolymer formed from butene-1 and hexene-1 monomers with a supported Ziegler-Natta catalyst, a styrenic block copolymer with less than 15 percent styrene, a high melt flow index metallocene, a high melt flow rate polypropylene with a melt flow above 18000 cps, and a low molecular weight polyethylene wax, wherein the molecular weight is less than 1000 centipoise at a temperature of 350 degrees Fahrenheit. 1. A hot-melt adjuvant-free formulation comprising:a. a butene-1-co-hexene-1 copolymer formed from butene-1 and hexene-1 monomers with a supported Ziegler-Natta catalyst at a process temperature from 130 degrees F. to 175 degrees F. and at a reactor pressure sufficient to maintain the butene-1 monomer in a liquid phase, in absence of any added solvent, with a hydrogen concentration less than 1 mole percent based on the formed copolymer, with the hydrogen present during a processing of monomers to copolymers sufficient to form a copolymer with a melt viscosity measured at 190 degrees Celsius which is less than 3500 centipoise;b. a styrenic block copolymer with less than 15 percent styrene, comprising a hydrogenated styrene butadiene block copolymer or a hydrogenated styrene isoprene block copolymer;c. a high melt flow index metallocene polyethylene with a melt flow above 3500 cps with a melting point of from 80 degrees to 100 degrees centigrade;d. a high melt flow rate polypropylene with a melt flow above 18000 centipoise, the high melt flow rate polypropylene comprising a homopolymer or random copolymer of propylene and over 20 percent crystallinity or over 20 percent isotacticity; ande. a low molecular weight polyethylene wax, wherein the molecular weight is less than 1000 centipoise at a temperature of 350 degrees Fahrenheit forming an amorphous poly alpha olefin hot melt adhesive.2. The hot-melt adjuvant-free formulation of comprising an externally-added organosilicon donor.3. The hot-melt ...

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Номер записи: 64
24-03-2022 дата публикации

PROCESS FOR PRODUCING A POLYMER COMPOSITION

Номер: US20220089802A1
Автор: AJELLAL Noureddine, ALBRECHT Andreas, JAMIESON John, Klimke Katja, LEGRAS Angelica Maëlle Delphine, Prades Floran, Purmonen Jouni, Ruskeeniemi Jari-Jussi, Sundholm Tua
Принадлежит:

Process for producing a polymer composition, a polymer composition obtainable by said process and the use of said polymer composition as adhesive polymer composition and for the production of a multilayer structure, such as a three-layer metal pipe coating, with improved peel strength. 2. The process according to claim 1 , wherein the extruder is a twin-screw extruder claim 1 , preferably a co-rotating twin-screw extruder.3. The process according to claim 1 , wherein temperature of the feeding section is in the range of from 20° C. to 70° C. claim 1 , preferably from 20 to 60° C.4. The process according to claim 1 , wherein the temperature increase of said two or more steps of increasing temperature is in the range of 5° C. to 30° C. for each step independently.5. The process according to claim 1 , wherein a radical initiator (D) is fed into the extruder in order to initiate the grafting of component (A) or components (A) and (B) with component (C) and the radical initiator (D) is selected from lauroyl peroxide claim 1 , didecanoyl peroxide claim 1 , tert-butylcumylperoxide claim 1 , 2 claim 1 ,5-bis(2-ethylhexanoylperoxy)-2 claim 1 ,5-dim ethyl hexane claim 1 , 2 claim 1 ,5-bis(tert-butylperoxy)-2 claim 1 ,5-dimethylhexane claim 1 , tert-butylcumylperoxide claim 1 , tert-butylperoxypivalate claim 1 , di(tert-butylperoxyisopropyl)benzene and mixtures thereof.6. The process according to claim 1 , wherein component (A) is a copolymer of ethylene and one or more comonomer(s) selected from alpha-olefins having from 4 to 12 carbons atoms and has a density of from 900 kg/mto 960 kg/mand/or a melt flow rate MFR(190° C. claim 1 , 2.16 kg) of from 1.0 to 10.0 g/10 min before grafting.7. The process according to claim 1 , wherein component (B) is selected from copolymers of ethylene with polar comonomer units.8. The process according to claim 1 , wherein component (C) is selected from unsaturated carboxylic acids or derivatives thereof such as anhydrides claim 1 , esters and ...

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Номер записи: 65
16-03-2017 дата публикации

Hydrocarbon Tackifiers for Adhesive Compositions

Номер: US20170073556A1
Автор: Austin Jennifer J., Barbee Thomas R., Devorest Yann, Tripathy Ranjan
Принадлежит:

The present invention is related to an adhesive composition comprising a 50-95 wt % polymer blend and a tackifier. The blend has a first and second propylene-based polymer, both different homopolymers of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin. The blend has a melt viscosity, measured at 190° C., of 1,000 to 30,000 cP. The tackifier has a softening point of 95° C. to 115° C., an aromaticity of 3 mol % to 10 mol % aromatic protons, and a Cloud Point of 40° C. to 65° C. 1. An adhesive composition comprising: [{'sub': 4', '10', '4', '10, 'a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer;'}, 'wherein the polymer blend has a melt viscosity, measured at 190° C. of about 1,000 to about 30,000 cP and', 'wherein the polymer blend is present in the amount of about 50 wt % to about 95 wt % of the adhesive composition;, '(a) a polymer blend comprising'} 'wherein tackifier has a softening point as determined by ASTM E-28 of about 95° C. to about 115° C., an aromaticity of about 3 mol % to about 10 mol % aromatic protons, and a Cloud Point of about 40° C. to about 65° C.; and', '(b) a tackifier;'}(c) a wax.2. An adhesive composition comprising:(a) a polymer blend comprising an ethylene-based polymer or a propylene-based homopolymer;(b) a tackifier;wherein tackifier has a softening point as determined by ASTM E-28 of about 95° C. to about 115° C., an aromaticity of about 3 to about 10 mol % aromatic protons, and a Cloud Point of 40 to about 65° C.; and(c) a wax.3. The adhesive composition of claim 2 , where the ethylene-based polymer is selected from the group ...

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Номер записи: 66
19-03-2015 дата публикации

POLYOLEFIN BASED HOT MELT ADHESIVE COMPOSITION

Номер: US20150080511A1
Автор: Bunnelle William L., Knutson Keith C., Quinn Thomas H.
Принадлежит:

A hot melt adhesive composition includes at least a semi-crystalline copolymer of propylene and a polyethylene wax having a Brookfield viscosity of about 20 cP to 500 cP at 140° C., a density of about 0.95 g/cmto 0.99 g/cmbetween 23° C. and 25° C., and a Mettler drop point of about 110° C. to 135° C., wherein the composition is characterized by a effective set time of about 0.1 second to 5 seconds. Articles including the composition and methods of making articles including the composition are described. 2. The composition of wherein the copolymer has a propylene content of about 80 mole % to 99.9 mole %.3. The composition of wherein the comonomer is ethylene claim 1 , 1-hexene or a combination thereof.4. The composition of claim 1 , the adhesive comprising about 50 wt % to 99.5 wt % of the copolymer.5. The composition of claim 1 , the adhesive comprising about 80 wt % to 95 wt % of the copolymer.6. The composition of claim 1 , the adhesive comprising about 1 wt % to 10 wt % of the polyethylene wax.7. The composition of wherein the polyethylene wax has a density of about 0.96 g/cmto 0.99 g/cm.8. The composition of wherein the polyethylene wax has a density of about 0.97 g/cmto 0.99 g/cm.9. The composition of claim 1 , the adhesive further comprising about 0.01 wt % to 5 wt % of a hindered phenol compound.10. The composition of claim 1 , the adhesive further comprising about 0.1 wt % to 10 wt % of a functionalized polyolefin comprising functional groups derived from maleic anhydride or acrylic acid.11. The composition of claim 1 , the adhesive further comprising about 1 wt % to 30 wt % of a tackifying resin having a softening point of about 80° C. to 180° C.12. The composition of claim 1 , the adhesive further comprising about 1 wt % to 15 wt % of a paraffin wax claim 1 , a Fischer-Tropsch wax claim 1 , or a non-metallocene polymerized polyethylene or polypropylene wax.13. The composition of claim 1 , the adhesive further comprising about 0.01 wt % to 30 wt % of an ...

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Номер записи: 67
26-03-2015 дата публикации

SEALING DEVICE WITH IMPROVED ADHESION

Номер: US20150086774A1
Автор: Ackermann Herbert, GOSSI Matthias, Hoefflin Frank, KEISER Stefan, Rohrer Roman, Rudolf Jean-Claude
Принадлежит: SIKA TECHNOLOGY AG

The present invention relates to a sealing device () comprising a barrier layer () and an adhesive layer (), and which is suitable for sealing bases in the building sector. The adhesive layer comprises a polymer P2, the polymer P2 being polyethylene (PE), polypropylene (PP) or a copolymer of ethylene and propylene, and a polyolefin-based polymer P3, the polymer P3 having at least one functional group which is selected from the group consisting of carboxylic acids, OH-groups, anhydrides, acetates and glycidyl methacrylate, and azo-dicarbonamide A. The invention further relates to a method for sealing the said bases. The method according to the invention allows structures of civil engineering to be sealed rapidly and efficiently and ensures good adhesion of the sealing device on the base. 115-. (canceled)16. A sealing device , comprising:a sealing layer, comprising: a thermoplastic polymer; and a first polymer that is a polyethylene, a polypropylene or a copolymer of ethylene and propylene;', 'a second polymer that is a polyolefin-based polymer comprising at least one functional group selected from the group consisting of a carboxylic acid, a OH group, an anhydride, an acetate, and a glycidyl methacrylate; and', 'azodicarbonamide A., 'an adhesive layer, comprising17. The sealing device of claim 16 , wherein the second polymer is selected from the group consisting of:a maleic anhydride-functionalized polyethylene;a maleic anhydride-functionalized polypropylene;a maleic anhydride-functionalized copolymer of ethylene and propylene;an ethylene vinyl acetate copolymer functionalized with maleic anhydride;an ethylene vinyl acetate copolymer;a glycidyl methacrylate-functionalized polyethylene; andan ethylene acrylic acid copolymer.18. The sealing device of claim 16 , wherein the second polymer is:a maleic anhydride-functionalized polyethylene;a maleic anhydride-functionalized polypropylene, ora maleic anhydride-functionalized copolymer of ethylene and propylene.19. The ...

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Номер записи: 68
26-03-2015 дата публикации

Hot Melt Adhesive With Functionalized Metallocene Catalyzed Polyolefins

Номер: US20150087760A1
Автор: Kanderski Monina D., Vitrano Michael D.
Принадлежит: BOSTIK, INC.

A hot melt adhesive composition containing a functionalized polymer, namely, a metallocene catalyzed polyolefin elastomer grafted with maleic anhydride, together with a non-functionalized secondary polymer, namely, a metallocene catalyzed random or block polyolefin elastomer having a melt index equal to or greater than 15, a first tackifying resin having a softening point of at least 95° C., and a wax. The composition may optionally include an aromatic reinforcing resin having a softening point equal to or higher than 115° C., and a plasticizer. These hot melts provide superior hot tack, excellent adhesion, flexibility, and heat resistance above 150° F. in applications such as rigid packaging, hot fill packaging, and bottle labeling. 2. The composition of further including about 1% to about 25% by weight of an auxiliary polymer selected from the group consisting of metallocene catalyzed polyolefin elastomers claim 1 , propylene based copolymers claim 1 , ethylene-based copolymers claim 1 , ethylene/alpha-olefin copolymers claim 1 , olefin block copolymers claim 1 , ethylene vinyl acetate (EVA) claim 1 , ethylene n-butyl acrylate copolymers claim 1 , and styrenic block copolymers.3. The composition of wherein said wax is selected from the group consisting of paraffin wax claim 1 , microcrystalline wax claim 1 , and synthetic waxes claim 1 , specifically but not limited to chemically modified waxes claim 1 , polymerized alpha olefin claim 1 , Fisher-Tropsch claim 1 , and other Polyethylene (PE) wax.4. The composition of wherein said first tackifying resin has a softening point of from about 95° C. to about 140° C.5. The composition of wherein said composition has a viscosity equal to or less than 10 claim 1 ,000 centipoise at 163° C.6. The composition of comprising about 1% to about 10% of said aromatic reinforcing resin claim 1 , wherein the said aromatic reinforcing resin is a product from pure monomer polymerization and has a softening point of from about 115° C. ...

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Номер записи: 69
12-03-2020 дата публикации

ADHESIVE COMPOSITION, AND COVERLAY FILM, BONDING SHEET, COPPER-CLAD LAMINATE AND ELECTROMAGNETIC SHIELDING MATERIAL, EACH USING SAID ADHESIVE COMPOSITION

Номер: US20200079980A1
Автор: Hirakawa Makoto, Yamada Masashi
Принадлежит: TOAGOSEI CO., LTD.

The present invention is an adhesive composition that is characterized by containing (A) a modified polyolefin resin and (B) an epoxy compound, and is also characterized in that: the modified polyolefin resin (A) is obtained by graft modifying a polyolefin resin with use of a modifying agent that contains an α,β-unsaturated carboxylic acid or a derivative thereof; the content of the epoxy compound (B) is 1-20 parts by mass relative to 100 parts by mass of the modified polyolefin resin (A); and the epoxy compound is composed of two or more types of epoxy compounds. 1. An adhesive composition , comprising:(A) a modified polyolefin-based resin; and(B) an epoxy resin,wherein the modified polyolefin-based resin (A) is a resin in which a polyolefin resin is graft-modified with a modifier comprising an α, β-unsaturated carboxylic acid or a derivative thereof,a content of the epoxy resin (B) is in a range of from 1 to 20 parts by mass based on 100 parts by mass of the modified polyolefin-based resin (A), andthe epoxy resin (B) comprises two or more types of epoxy resins.2. The adhesive composition of claim 1 , wherein the epoxy resin (B) comprises a novolak type epoxy resin.3. The adhesive composition of claim 2 , wherein the epoxy resin (B) comprises a bisphenol A novolak type epoxy resin.4. The adhesive composition of claim 1 , wherein the epoxy resin (B) comprises an epoxy resin having an alicyclic skeleton.5. The adhesive composition of claim 1 , wherein the modified polyolefin-based resin (A) comprises a modified polypropylene resin.6. The adhesive composition of claim 1 , wherein the derivative of the α claim 1 , β-unsaturated carboxylic acid is at least one compound selected from the group consisting of an itaconic anhydride claim 1 , a maleic anhydride claim 1 , an aconitic anhydride and a citraconic anhydride.7. The adhesive composition of claim 1 , wherein a content proportion of a graft portion derived from the α claim 1 ,β-unsaturated carboxylic acid or the ...

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Номер записи: 70
30-03-2017 дата публикации

Propylene-based amorphous poly-alpha-olefins (APAOs) formulated with hexene-1 monomer containing amorphous poly-alpha-olefins for use in hot melt adhesives

Номер: US20170088754A1
Автор: Buenacosa Enrico, Fowler Nick, Haselman James, Sustic Andres
Принадлежит:

Amorphous poly-alpha-olefins (APAOs) such as propylene-co-hexene-1-co-butene-1 and propylene-hexene-1 are used as tackifiers in hot melt adhesive formulations. 1. A hot-melt adhesive composition comprising:a propylene-co-ethylene APAO; and,a polyalphaolefinic tackifier comprising propylene-hexene-1.2. A hot-melt adhesive composition comprising:a propylene-co-ethylene APAO; and,a polyalphaolefinic tackifier comprising propylene-co-hexene-1-co-butene-1.3. A hot-melt adhesive composition comprising:a propylene-co-butene-1 copolymer APAO; and,a polyalphaolefinic tackifier comprising propylene-hexene-1.4. A hot-melt adhesive composition comprising:a propylene-co-butene-1 copolymer APAO; and,a polyalphaolefinic tackifier comprising propylene-co-hexene-1-co-butene-1.5. A hot-melt adhesive composition comprising:an ethylene/propylene/butene-1 terpolymers APAO; and,a polyalphaolefinic tackifier comprising propylene-hexene-1.6. A hot-melt adhesive composition comprising:an ethylene/propylene/butene-1 terpolymers APAO; and,a polyalphaolefinic tackifier comprising propylene-co-hexene-1-co-butene-1. This application claims the benefit of U.S. Provisional Application No. 62/234,996, filed on Sep. 30, 2015.Not Applicable. Field of the InventionThe present invention generally relates to copolymers. More specifically, it relates to amorphous poly-alpha-olefin (APAO) polymers useful as components in hot melt adhesive formulations.. Description of the Related Art including information disclosed under 37 CFR 1.97 and 1.98Hot melt adhesives (HMAs) are a form of thermoplastic adhesive that is designed to be applied in the molten state. The glue is tacky when hot, and solidifies in a few seconds to about one minute. Hot melt adhesives may also be applied by dipping or spraying.In industrial use, hot melt adhesives provide several advantages over solvent-based adhesives. Volatile organic compounds are reduced or eliminated, and the drying or curing step is eliminated. Hot melt adhesives ...

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Номер записи: 71
19-06-2014 дата публикации

LOW APPLICATION TEMPERATURE HOT MELT ADHESIVE

Номер: US20140171586A1
Автор: DeJesus Maria Cristina Barbosa, Hu Yuhong, Pollock-Downer Alethea, Sharak Matthew, Xenidou Maria
Принадлежит:

The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles. 1. A process for bonding a first substrate to a second substrate with a low application temperature hot melt adhesive comprising the steps of:(1) applying to at least a portion of the first substrate a low application temperature hot melt adhesive;(2) bringing the second substrate in contact with the adhesive present on the first substrate, and (3) allowing the adhesive to solidify, whereby the first substrate is bonded to the second substrate; (a) at least about 5 wt % of an olefin copolymer, wherein the olefin copolymer has an average Melt Index range of greater than 5 and less than about 35 g/10 minutes at 190° C.;', '(b) from about 40 to about 70 wt % of a tackifier;', '(c) from about 0.5 to about 5 wt % a wax;', '(d) from about 1 to about 30 wt % of a plasticizer diluent; and', '(e) from 0 to about 5 wt % of an optional component, 'wherein the adhesive compriseswherein the sum of the total wt % of the adhesive equals to 100; andwherein the adhesive has a viscosity of below about 11,000 centipoises at 120° C., a yield stress (12 in/min extensional rate) range of from about 7 to about 50 psi at 25° C., a cube flow of less than about 200% at 60° C., and a cross-over temperature (when G″=G′) greater than about 70° C.2. The process of wherein the at least one of the substrate is a liquid-permeable substrate and the other substrate is a liquid-impermeable substrate.3. The process of wherein the adhesive is applied to the first substrate at and/or below about 120° C.4. An article manufactured with a low application hot melt adhesive comprising:(a) at least about 5 wt % of an olefin copolymer, wherein the olefin copolymer has an average ...

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Номер записи: 72
06-04-2017 дата публикации

ARTICLE WITH TACKIFIER-FREE ADHESIVE

Номер: US20170095588A1
Автор: Bunnelle William L., Turner Robert Haines
Принадлежит:

Disposable absorbent articles assembled from a collection of components using an adhesive comprising an amorphous polyolefin composition and a heterophase polyolefin composition comprising amorphous character and crystalline blocks. 1. A disposable absorbent article having a longitudinal centerline and a lateral centerline , a front waist region with a front waist edge , a rear waist region with a rear waist edge , a crotch region disposed between said front and rear waist regions and two spaced apart longitudinal side edges joining said front waist edge to said rear waist edge and comprising an assembly of components including:a) a topsheet;b) a backsheet underlying said topsheet;c) an absorbent core disposed between said topsheet and said backsheet, wherein said absorbent core comprises at least one of a core cover, a dusting layer, an acquisition layer, a distribution layer and a storage member; i) a fastening system for joining said front waist region to said rear waist region when said absorbent article is worn;', 'ii) barrier cuffs lying adjacent and inboard one of said longitudinal side edges;', 'iii) gasketing cuffs lying between said longitudinal side edge and said barrier cuff;', 'iv) front ears disposed in said front waist region;', 'v) back ears disposed in said rear waist region; and', 'vi) a receiving member; and, 'd) at least one additional component selected from the group consisting of (i) about 90-10 wt. % of an amorphous polyolefin composition comprising at least about 40 wt. % of 1-butene monomer units; and', '(ii) about 10-90 wt. % of a heterophase polyolefin propylene copolymer composition comprising propene comonomer units and a comonomer unit selected from the group consisting of ethylene, 1-hexene, 1-octene, and amorphous blocks and crystalline blocks., 'e) a hot melt adhesive composition joining at least two absorbent article components together, wherein said adhesive composition comprises2. The absorbent article of claim 1 , wherein said ...

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Номер записи: 73
16-04-2015 дата публикации

Hot Melt Pressure-Sensitive Adhesives for No-Label Look Applications

Номер: US20150104639A1
Автор: Austin Jennifer J., Coffey James N., Curry Christopher L., Mowry Shawn W., Schroeyers Jurgen
Принадлежит:

A composition comprising a hot melt pressure-sensitive adhesive comprising a propylene-based polymer component, wherein the propylene-based polymer component has a MFR of greater than about 1,000 g/10 min to less than about 10,000 g/10 min, and free of or having a low block copolymer content. Also, an adhesive article comprising the composition. 1. A hot melt pressure-sensitive adhesive composition comprising a propylene-based polymer component , wherein the propylene-based polymer component comprises a first propylene-based polymer wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin and a second propylene-based polymer wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin , wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the propylene-based polymer component has a MFR of greater than about 1 ,000 g/10 min to less than about 10 ,000 g/10 min; andwherein the hot melt pressure-sensitive adhesive composition is free of or comprises not more than about 30 wt % of a block copolymer based on the weight of the hot melt pressure sensitive adhesive composition.2. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component has an Mw of about 10 claim 1 ,000 g/mol to about 150 claim 1 ,000 g/mol.3. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component is a dual reactor blend.4. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the propylene-based polymer component is a solution blend.5. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein the first propylene-based polymer of the propylene-based polymer component comprises a copolymer of propylene and ethylene claim 1 , and the second propylene-based ...

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Номер записи: 74
14-04-2016 дата публикации

Polyolefin-Based Hot Melt Adhesives With Improved Processing And Bonding Performance

Номер: US20160102230A1
Автор: Flores Fabrice Nicolas-Henri, Freund David Frederic, Gray Steven Daniel, Hamann Richard Edward, Hu Miao
Принадлежит: BOSTIK, INC.

A hot melt adhesive made from a blend of a polypropylene-based polymer, a polyolefin elastomer, and an amorphous polyolefin. These adhesives exhibit excellent molten and pre-set flow allowing them to wet out substrates yet develop properties needed to form and maintain strong bonds making them useful for hygiene, construction, and packaging applications. 1. A hot melt adhesive , comprising:(a) about 1% to about 30% by weight of a polypropylene random copolymer, or a polypropylene impact copolymer, or mixtures thereof;(b) about 2% to about 60% by weight of a polyolefin elastomer, or mixtures thereof;(c) about 1% to about 40% by weight of an amorphous polyolefin;(d) about 5% to about 70% by weight of a tackifying resin;(e) 0% to about 60% by weight of a plasticizer;(f) 0% to about 5% of a stabilizer or antioxidant;wherein the components total 100% by weight of the composition, and the viscosity of the composition is equal to or less than about 40,000 cP at 163° C.2. The hot melt adhesive of wherein the viscosity of the composition is equal to or less than 20 claim 1 ,000 cP at 163° C.3. The hot melt adhesive of wherein the viscosity of the composition is equal to or less than 10 claim 1 ,000 cP at 163° C.4. The hot melt adhesive of comprising about 2% to about 20% by weight of a polypropylene random copolymer or polypropylene impact copolymer.5. The hot melt adhesive of comprising about 5% to about 50% by weight of a polyolefin elastomer or mixtures thereof.6. The hot melt adhesive of comprising about 10% to about 40% by weight of a polyolefin elastomer or mixtures thereof.7. The hot melt adhesive of comprising about 2% to about 20% by weight of an amorphous polyolefin or mixtures thereof.8. The hot melt adhesive of comprising about 10% to about 60% by weight of a tackifying resin or mixtures thereof.9. The hot melt adhesive of comprising about 20% to about 55% by weight of a tackifying resin or mixtures thereof.10. The hot melt adhesive of comprising about 1% to ...

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Номер записи: 75
23-04-2015 дата публикации

Tackified Polyolefin Adhesive Compositions

Номер: US20150112014A1
Автор: Austin Jennifer J., Coffey James N., Delucia Joseph M., Devorest Yann, Schroeyers Jurgen J., Tripathy Ranjan
Принадлежит:

The present invention is related to adhesive compositions comprising a polymer blend of at least two different propylene-based polymers and one or more tackifiers. The polymer blend has a melt viscosity of about 900 cP to about 19,000 cP. When subjected to Temperature Rising Elution Fractionation, the polymer blend exhibits a first fraction that is soluble at −15° C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble or less soluble than the first fraction at −15° C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %. The tackifier has a softening point, as determined by ASTM E-28, of about 85 to about 135° C. and an aromaticity of about 2 to about 12 mol % aromatic protons. 1. An adhesive composition comprising: [{'sub': 4', '10, 'a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin;'}, {'sub': 4', '10, 'a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer;'}, 'wherein the polymer blend has a melt viscosity, measured at 190° C. of about 900 cP to about 19,000 cP and wherein, when subjected to Temperature Rising Elution Fractionation, the polymer blend exhibits: a first fraction that is soluble at −15° C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble at −15° C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %; and, 'a polymer blend comprising'}a tackifier having a softening point, as determined by ASTM E-28, of about 85 to about 135° ...

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Номер записи: 76
29-04-2021 дата публикации

Processes for Producing High Propylene Content PEDM using Tetrahydroindacenyl Catalyst Systems

Номер: US20210122842A1
Автор: Florin Barsan, Jo Ann M. Canich, John R. Hagadorn, Rhutesh Shah, Sarah J. Mattler
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 1 to 35 mol % of ethylene, from 98.9 to 65 mol % C3-C40 olefin, and, optionally, from 0.1 to 10 mol % diene. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

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Номер записи: 77
28-04-2016 дата публикации

Polyolefin Adhesive Compositions and Methods of Preparing the Same

Номер: US20160115306A1
Автор: Douglas A. Berti, Florin Barsan, Luke P. Stephens, Periagaram S. Ravishankar, Yu Feng Wang
Принадлежит: ExxonMobil Chemical Patents Inc

A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a C 4 to C 10 olefin comonomer; and a second polymer, wherein the second polymer is a propylene homopolymer and a propylene copolymer having an ethylene or a C 4 to C 10 olefin comonomer, and wherein the first polymer and second polymer have a difference in heat of fusion of about 25 J/g or more. Methods for making such a polymer product using at least two reactors in parallel and for separating a propylene-based polymer from a solvent using a liquid-phase separator are also disclosed.

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Номер записи: 78
28-04-2016 дата публикации

BASE POLYMER FOR HOT-MELT ADHESIVE AGENT, AND HOT-MELT ADHESIVE AGENT

Номер: US20160115360A1
Автор: Hashima Kazuhiro, INOUE Masao, Kobayashi Kenji, Minami Yutaka, TAKEBE Tomoaki
Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a hot-melt adhesive which satisfies both solidification rate and adhesiveness. A base polymer for a hot-melt adhesive which satisfies the following (1) and (2): (1) a modulus of elasticity in tension at 23° C. is 400 MPa or less; and (2) a semi-crystallization time at 23° C. is 20 minutes or less. 1: A base polymer for a hot-melt adhesive which satisfies the following (1) and (2):(1) a modulus of elasticity in tension at 23° C. is 400 MPa or less; and(2) a semi-crystallization time at 23° C. is 20 minutes or less.2: The base polymer for a hot-melt adhesive according to claim 1 , wherein the following (3) is satisfied:(3) an elongation at break at 23° C. is 150% or more and 1,000% or less.3: The base polymer for a hot-melt adhesive according to claim 1 , wherein a weight-average molecular weight is from 5 claim 1 ,000 to 150 claim 1 ,000.4: The base polymer for a hot-melt adhesive according to claim 1 , comprising a propylene homopolymer.5: The base polymer for a hot-melt adhesive according to claim 1 , wherein the base polymer is a blend of 1 to 99 parts by mass of a propylene homopolymer (a) having a meso pentad fraction (mmmm) of 1 to 45 mol % and 99 to 1 part by mass of a propylene homopolymer (b) having a meso pentad fraction (mmmm) of 46 to 80 mol % claim 1 , and the total amount of the propylene homopolymers (a) and (b) is 100 parts by mass.6: A hot-melt adhesive claim 1 , comprising the base polymer for a hot-melt adhesive according to .7: The hot-melt adhesive according to claim 6 , wherein the content of the base polymer for a hot-melt adhesive is from 1 to 90% by mass.8: The hot-melt adhesive according to claim 6 , further comprising a tackifier resin and an oil.9: A sanitary article obtained by using the hot-melt adhesive according to .10: A method for bonding a substrate to another substrate claim 6 , comprising a step of melting the hot-melt adhesive according to and coating the adhesive onto at least one substrate claim 6 , and a step of ...

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Номер записи: 79
27-04-2017 дата публикации

ANTISLIP SHEET MATERIAL HAVING TAPES AND MONOFILAMENTS

Номер: US20170114482A1
Автор: Seth Manish K., Vido Martin
Принадлежит:

A sheet of material with an anti-skid surface, suitable for use as a roofing underlayment or wrapper, comprises a scrim made of woven plastic tapes with monofilaments that are round in cross-section and have a diameter larger than the thickness of the plastic tapes interwoven with the tapes. The monofilaments form ridges on the sheet material that impart an enhanced coefficient of friction to it. The monofilaments may be incorporated in the weave in the warp or weft directions or both. 119-. (canceled)20. A sheet of material having an anti-skid surface , comprising:a first set of tapes generally parallel to each other;a second set of tapes generally parallel to each other and perpendicular to the first set of tapes;the tapes being extruded plastic and having a width greater than their thickness;the tapes of the first set and of the second set being interwoven with each other to form a scrim;a first set of filaments generally parallel to the first set of tapes, each filament of the first set being positioned on a respective tape of the first set of tapes and following a weaving path the same as said respective tape of the first set of tapes, each said filament of the first set of filaments being interwoven with the tapes of the second set, the first set of filaments being exposed on only a first side of the sheet of material;the filaments of the first set of filaments being generally round in cross-section and having a diameter at least six times greater than the thickness of the respective first and second tapes and forming ridges on the first side of the sheet that provide the anti-skid surface.21. The sheet of claim 20 , further comprising a second set of filaments generally parallel to the second set of tapes claim 20 , each filament of the second set being positioned on a respective tape of the second set of tapes and following a weaving path the same as said respective tape of the second set of tapes claim 20 , each said filament of the second set of filaments ...

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Номер записи: 80
09-04-2020 дата публикации

ADHESION IMPROVER FOR CARBON-FIBER-REINFORCED RESIN COMPOSITION

Номер: US20200109319A1
Автор: Fujishiro Koichi, Mukudai Jun, Yoshino Takahiko, Yoshioka Takahiro
Принадлежит:

An object of the present invention is to provide an adhesion improver for a carbon fiber-reinforced polyolefin-based resin composition that provides improved mechanical characteristics such as bending strength and bending elastic modulus. The adhesion improver is used for a carbon fiber-reinforced resin composition including carbon fibers and a polyolefin-based resin. The adhesion improver includes an acid-modified polyolefin-based resin unit and an epoxy resin unit. The acid-modified polyolefin-based resin unit and the epoxy resin unit are linked via an ester structure, and the epoxy resin unit includes a secondary hydroxy group. 1. An adhesion improver for use in a carbon fiber-reinforced resin composition including carbon fibers and a polyolefin-based resin , the adhesion improver comprising:an acid-modified polyolefin-based resin unit; andan epoxy resin unit, the acid-modified polyolefin-based resin unit and the epoxy resin unit being linked via an ester structure, whereinthe epoxy resin unit includes a secondary hydroxy group.2. The adhesion improver according to claim 1 ,wherein the melt viscosity at 170° C. is 50 to 1,500 Pa·s.3. The adhesion improver according to claim 1 ,wherein the acid-modified polyolefin-based resin unit is an acid-modified polypropylene-based resin unit.4. A method for manufacturing the adhesion improver according to claim 1 , the method comprising: using claim 1 , as raw materials claim 1 , an acid-modified polyolefin-based resin having an acid equivalent of 500 to 200 claim 1 ,000 g/eq. and an epoxy resin claim 1 , allowing the acid-modified polyolefin-based resin to react with the epoxy resin in the presence of a catalyst at 150° C. to 250° C.5. The method according to for manufacturing the adhesion improver claim 4 ,wherein the acid-modified polyolefin-based resin is allowed to react with the epoxy resin at a molar ratio (AE/EE) of carboxyl groups (AE) in the acid-modified polyolefin-based resin to epoxy groups (EE) in the epoxy ...

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Номер записи: 81
05-05-2016 дата публикации

AN ELASTIC ATTACHMENT ADHESIVE AND A DISPOSABLE ABSORBENT ARTICLE MADE WITH THE SAME

Номер: US20160121014A1
Автор: Remmers Peter, Ruediger Ursula, Vaughan Steve R., Wittkopf Thomas
Принадлежит:

The invention relates to a disposable absorbent article and an adhesive composition including a first polymer that is propylene-based and has a Mw of no greater than about 75,000, and a second polymer selected from a group including propylene based polymers with a Mw of at least about 100,000 and styrene block copolymers with a styrene content of no greater than about 20% where the adhesive composition is useful for elastic attachment applications. 1. A disposable absorbent article selected from the group consisting of an adult incontinence product and a diaper comprising:a first substrate and an elastic material; and 'a first polymer that is propylene-based and has a Mw of no greater than about 75,000 and;', 'an adhesive composition comprisinga second polymer selected from a group consisting of propylene based polymers with a Mw of at least about 100,000 and styrene block copolymers with a styrene content of no greater than about 20%,wherein the propylene-based polymers have a polydispersity index of less than about 5 andwherein the adhesive composition is in contact with the elastic material and the first substrate.2. The disposable absorbent article of wherein the adhesive composition also is applied in at least one additional application selected from the group consisting of core stabilization and construction.3. The disposable absorbent article of wherein the adhesive composition also is applied as a core stabilization adhesive and construction adhesive.4. The article of wherein the adhesive composition comprises no greater than about 20% by weight plasticizer.5. The article of wherein the adhesive composition comprises no greater than about 18% by weight plasticizer.6. The article of claim I wherein said second polymer is present at from about 2% to about 15% by weight.7. The article of wherein the said second polymer has a Mw of at least about 150 claim 1 ,000.8. The article of wherein the first polymer is a propylene homopolymer.9. The article of wherein the ...

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Номер записи: 82
17-07-2014 дата публикации

HOT MELT ADHESIVE

Номер: US20140199545A1
Автор: MORIGUCHI Masahiro, SAITO Shigekazu
Принадлежит: Henkel AG & Co. KGaa

The present invention provides a hot melt adhesive for high-speed coating and spiral coating at low temperature. The hot melt adhesive has excellent adhesion to polyethylene and nonwoven fabric, and is suitable for disposable products. The hot melt adhesive comprises: (A) a propylene homopolymer having a melting point of 100° C. or lower which is obtainable by polymerizing propylene using a metallocene catalyst; and (B) an ethylene-based copolymer. 1. A hot melt adhesive comprising:(A) a propylene homopolymer having a melting point of 100° C. or lower which is prepared by polymerizing propylene using a metallocene catalyst; and(B) an ethylene/α-olefin copolymer prepared with a metallocene catalyst, wherein the ethylene/α-olefin copolymer is ethylene/propylene copolymer and/or ethylene/octene copolymer.2. The hot melt adhesive of claim 1 , wherein the propylene homopolymer has a melting point of 65° C. to 85° C.3. The hot melt adhesive of claim 1 , wherein the propylene homopolymer is a mixture of a (A1) propylene homopolymer having a weight average molecular weight of 60 claim 1 ,000 or less and a (A2) propylene homopolymer having a weight average molecular weight greater than 60 claim 1 ,000.4. The hot melt adhesive of claim 3 , wherein the propylene homopolymer is a mixture of a (A1) propylene homopolymer having a weight average molecular weight of 30 claim 3 ,000 to 55 claim 3 ,000 and a (A2) propylene homopolymer having a weight average molecular weight of 60 claim 3 ,000 to 80 claim 3 ,000.5. The hot melt adhesive of claim 1 , wherein the propylene homopolymer is present at 60 to 95 parts by weight based on the 100 parts by weight of the total weight of the propylene homopolymer (A) and the ethylene/α-olefin copolymer (B).6. The hot melt adhesive of claim 4 , wherein the propylene homopolymer comprises a mixture of a (A1) propylene homopolymer and a (A2) propylene homopolymer in a ratio of 1:3 to 3:2.7. The hot melt adhesive of claim 1 , wherein the ethylene/α- ...

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Номер записи: 83
17-07-2014 дата публикации

HOT MELT ADHESIVE FOR DISPOSABLE PRODUCTS

Номер: US20140199907A1
Автор: INOUE Kentarou, MAEDA Naohiro, MORIGUCHI Masahiro, OKUDA Takanori, SAITO Shigekazu
Принадлежит: Henkel AG & Co. KGaa

The present invention provides a hot melt adhesive suitable for use in disposable products, which can be applied at a high speed and provides excellent in adhesion in a wet state and low-temperature coating, with little odor. The hot melt adhesive for disposable products comprises: (A) a propylene homopolymer having a melting point of 100° C. or lower obtained by polymerizing propylene using a metallocene catalyst; and (B) a wax modified with carboxylic acid and/or carboxylic acid anhydride. The wet adhesion of the hot melt adhesive is improved when the wax is modified with maleic acid and/or maleic anhydride. 1. A hot melt adhesive for disposable products , comprising:(A) a propylene homopolymer having a melting point of 100° C. or lower prepared by polymerizing propylene with a metallocene catalyst; and(B) a wax modified with carboxylic acid and/or carboxylic acid anhydride.2. The hot melt adhesive for disposable products according to claim 1 , wherein the propylene homopolymer has a melting point of 100° C. or lower.3. The hot melt adhesive for disposable products according to claim 1 , wherein the propylene homopolymer has a melting point of 65° C. to 85° C.4. The hot melt adhesive for disposable products according to claim 2 , wherein the propylene homopolymer consists of 20 to 40 parts by weight of (A1) a propylene homopolymer having a weight average molecular weight of 60 claim 2 ,000 or less and 50 to 70 parts by weight and (A2) a propylene homopolymer having a weight average molecular weight of greater than 60 claim 2 ,000 claim 2 , wherein the parts by weight is based on 100 parts by weight of the total weight of the components (A) and (B).5. The hot melt adhesive for disposable products according to claim 4 , wherein the (A1) propylene homopolymer has a weight average molecular weigth of 30 claim 4 ,000 to 55 claim 4 ,000 and the (A2) propylene homopolymer has a weight average molecular weight of greater than 60 claim 4 ,000 to 90 claim 4 ,000.6. The hot ...

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Номер записи: 84
17-07-2014 дата публикации

HOT MELT ADHESIVE

Номер: US20140199908A1
Автор: INOUE Kentarou
Принадлежит: Henkel AG & Co. KGaa

The present invention provides hot melt adhesives for disposable products. The hot melt adhesives may be applied at high-speed and at low temperature ranges. The hot melt adhesives also provide excellent adhesion to polyethylene and a nonwoven fabric. The hot melt adhesive comprises (A) a thermoplastic block copolymer, which is a copolymer of a vinyl-based aromatic hydrocarbon with a conjugated diene compound; and (B) a propylene homopolymer having a melting point of 100° C. or lower, which is obtainable by polymerizing propylene using a metallocene catalyst. The disposable products are produced at high-speeds and low temperature with the inventive hot melt, and therefore, the disposal products are produced efficiently and safely, and a nonwoven fabric and a polyethylene film of the disposable products are less likely to peel. 1. A hot melt adhesive comprising:(A) a thermoplastic block copolymer that is a copolymer of a vinyl-based aromatic hydrocarbon with a conjugated diene compound; and(B) a propylene homopolymer having a melting point of 100° C. or lower that is prepared by polymerizing propylene with a metallocene catalyst.2. The hot melt adhesive according to claim 1 , wherein the vinyl-based aromatic hydrocarbon is selected from the group consisting of styrene claim 1 , o-methylstyrene claim 1 , p-methylstyrene claim 1 , p-tert-butylstyrene claim 1 , 1 claim 1 ,3-dimethylstyrene claim 1 , α-methylstyrene claim 1 , vinylnaphthalene claim 1 , vinylanthracene claim 1 , and mixtures thereof.3. The hot melt adhesive according to claim 2 , wherein the vinyl-based aromatic hydrocarbon is styrene4. The hot melt adhesive according to claim 1 , wherein the conjugated diene is selected from the group consisting of 1 claim 1 ,3-butadiene claim 1 , 2-methyl-1 claim 1 ,3-butadiene (or isoprene) claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , 1 claim 1 ,3-pentadiene claim 1 , 1 claim 1 ,3-hexadiene claim 1 , and mixtures thereof.5. The hot melt adhesive ...

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Номер записи: 85
25-08-2022 дата публикации

Pressure Sensitive Adhesives Comprising Propylene-Ethylene(-Diene) Copolymers

Номер: US20220267649A1
Автор: BAI Zhifeng, Coffey James N., Hamilton Adam P., Loyd Scott H., Muankaew Chaky D., Raja Rajesh Puthenkovilakom, Stamatakis Eleni E., Valdez Alexandra K.
Принадлежит:

A pressure-sensitive adhesive may comprise: about 18 wt % to about 90 wt % of a propylene-ethylene(-diene) (PE(D)M) copolymer; about 10 wt % to about 65 wt % of a tackifier; and 0 wt % to about 40 wt % of an oil. The PE(D)M copolymer may comprise: (a) about 60 wt % to about 99 wt % propylene, (b) about 1 wt % to about 40 wt % ethylene or a C4 to C22 alpha-olefin, and (c) 0 wt % to about 20 wt % diene, wherein the PE(D)M copolymer has a heat of fusion of about 15 J/g or less. 1. A pressure-sensitive adhesive comprising:about 18 wt % to about 90 wt % of a propylene-ethylene(-diene) (PE(D)M) copolymer comprising (a) about 60 wt % to about 99 wt % propylene, (b) about 1 wt % to about 40 wt % ethylene or a C4 to C22 alpha-olefin, and (c) 0 wt % to about 20 wt % diene, wherein the PE(D)M copolymer has a heat of fusion of about 15 J/g or less; about 10 wt % to about 65 wt % of a tackifier; and 0 wt % to about 40 wt % of an oil.2. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a heat of fusion of about 8 J/g or less.3. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a heat of fusion of about 1 J/g or less.4. The pressure-sensitive adhesive of claim 1 , wherein the C4 to C22 alpha-olefin is a C4 to C12 alpha-olefin.5. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a melt flow rate (2.16 kg at 230° C.) of about 0.1 g/10 min or greater.6. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a melt flow rate (2.16 kg at 230° C.) of about 10 g/10 min or less claim 1 , and wherein the pressure-sensitive adhesive further comprises a solvent.7. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a melt flow rate (2.16 kg at 230° C.) of about 5 g/10 min to about 30 g/10 min.8. The pressure-sensitive adhesive of claim 1 , wherein the PE(D)M copolymer has a Mooney viscosity (ML(1+4) 125° C.) about 5 MU to about 100 MU.9. The pressure-sensitive ...

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Номер записи: 86
27-05-2021 дата публикации

ETHYLENE/C3-C6 ALPHA-OLEFIN INTERPOLYMERS WITH IMPROVED PELLET FLOWABILITY

Номер: US20210155832A1
Автор: Jin Yi, Van Dun Jozef J. I.
Принадлежит:

A composition is provided, which comprises an ethylene/C3-C6 alpha-olefin interpolymer, and wherein the interpolymer comprises the following properties: 1. A composition comprising an ethylene/C3-C6 alpha-olefin interpolymer , and wherein the interpolymer comprises the following properties: {'br': None, 'HCC(wt %)≥−648.6[(wt %)(cc)/(g)]×(density)+569.4(wt %);'}, 'a) an HCC value that meets the following equationb) an aged flowability ≥130 g/sec2. The composition of claim 1 , wherein the ethylene/C3-C6 alpha-olefin interpolymer has an HCC value greater than claim 1 , or equal to claim 1 , 6.0 wt %.3. The composition of any one of the previous claims claim 1 , wherein the ethylene/C3-C6 alpha-olefin interpolymer has an HCC value that meets the following equation:{'br': None, 'HCC(wt %)≥−648.6[(wt %)(cc)/(g)]×(density)+570.9(wt %).'}4. The composition of any one of the previous claims claim 1 , wherein the interpolymer further comprises an HCC value that meets the following equation:{'br': None, 'HCC(wt %)<−463.4[(wt %)(cc)/(g)]×(density)+413.8(wt %).'}5. The composition of any one of the previous claims claim 1 , wherein the ethylene/C3-C6 alpha-olefin interpolymer has a melt viscosity from 2 claim 1 ,000 cP to 50 claim 1 ,000 cP at 350° F. (177° C.).6. The composition of any one of the previous claims claim 1 , wherein the ethylene/C3-C6 alpha-olefin interpolymer has a density less than claim 1 , or equal to claim 1 , 0.910 g/cc.7. The composition of any one of the previous claims claim 1 , wherein the ethylene/C3-C6 alpha-olefin interpolymer has a highest peak melting temperature less than claim 1 , or equal to claim 1 , 80.0° C.8. The composition of any one of the previous claims claim 1 , wherein the alpha-olefin is a C6 alpha-olefin or a C3 alpha-olefin.9. The composition of any one of the previous claims claim 1 , further comprising at least one tackifier and at least one oil.10. An article comprising at least one component formed from the composition of any one ...

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Номер записи: 87
12-05-2016 дата публикации

HOT MELT ADHESIVE COMPOSITIONS THAT INCLUDE SEMI-CRYSTALLINE PROPYLENE POLYMER AND WAX AND ARTICLES INCLUDING THE SAME

Номер: US20160130480A1
Автор: Ahmed Sharf U., Kauffman Thomas F., Mosanu Claudia, Roska Timothy W., Roy Gary L., Schmidt Scott C., Schmit Amanda L.
Принадлежит:

A hot melt adhesive composition that includes at least 40% by weight of an unmodified, semi-crystalline propylene polymer that includes at least 50% by weight propylene, and at least 15% by weight wax. 1. A hot melt adhesive composition comprising:at least 40% by weight of an unmodified, semi-crystalline propylene polymer comprising at least 50% by weight propylene;at least 15% by weight non-functionalized wax, the non-functionalized wax comprising a first non-functionalized wax and a second non-functionalized wax different from the first non-functionalized wax; andno greater than 8% by weight of an ethylene-ethylenically unsaturated ester copolymer.2. The hot melt adhesive composition of further comprising an elastomeric block copolymer comprising styrene.3. The hot melt adhesive composition of claim 2 , wherein the elastomeric block copolymer is selected from the group consisting of styrene-ethylene/butylene-styrene block copolymer claim 2 , styrene-ethylene/propylene-styrene block copolymer claim 2 , and combinations thereof.4. The hot melt adhesive composition of comprising at least 45% by weight of the unmodified claim 1 , semi-crystalline propylene polymer.5. The hot melt adhesive composition of comprising at least 50% by weight of the unmodified claim 1 , semi-crystalline propylene polymer.6. The hot melt adhesive composition of comprising at least 55% by weight of the unmodified claim 1 , semi-crystalline propylene polymer.7. The hot melt adhesive composition of claim 1 , wherein the first non-functionalized wax comprises polyethylene wax claim 1 , Fischer Tropsch wax or a combination thereof.8. The hot melt adhesive composition of claim 1 , wherein the first non-functionalized wax has a melting point greater than 100° C.9. The hot melt adhesive composition of claim 8 , wherein the second non-functionalized wax has a melting point greater than 115° C.10. The hot melt adhesive composition of further comprising a functionalized wax.11. The hot melt adhesive ...

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Номер записи: 88
23-04-2020 дата публикации

HOT MELT ADHESIVE

Номер: US20200123418A1
Автор: KAKUDA Atsushi, MAEDA Naohiro
Принадлежит:

Disclosed is a hot melt adhesive comprising: (A) a metallocene based propylene homopolymer, (B) a metallocene based ethylene/α-olefin copolymer, (C) a tackifier resin, and (D) a plasticizer, wherein the plasticizer (D) comprises (D1) an oil and (D2) at least one polymer selected from polybutene, polybutadiene, polyisobutylene, and polyisoprene. This hot melt adhesive has an initial adhesive strength enough to enable a pressure sensitive adhesion body to stick easily on a member, thus making it possible to firmly hold the pressure sensitive adhesion body on the member. The hot melt adhesive is also excellent in releasability, thus causing no adhesive residue on the member when the pressure sensitive adhesion body is peeled from the member. 1: A hot melt adhesive comprising: (A) a metallocene based propylene homopolymer , (B) a metallocene based ethylene/α-olefin copolymer , (C) a tackifier resin , and (D) a plasticizer , whereinthe plasticizer (D) comprises (D1) an oil and (D2) at least one polymer selected from polybutene, polybutadiene, polyisobutylene, and polyisoprene.2: The hot melt adhesive according to claim 1 , wherein the oil (D1) comprises a naphthene oil.3: The hot melt adhesive according to claim 1 , wherein the polymer (D2) comprises polybutene.4: The hot melt adhesive according to claim 1 , which comprises the polymer (D2) in an amount of 5 to 90 parts by weight based on 100 parts by weight of the total weight of the oil (D1) and the polymer (D2).5: The hot melt adhesive according to claim 1 , wherein the metallocene based propylene homopolymer (A) has a melting point of 100° C. or lower. The present invention relates to a hot melt adhesive, and more particularly to a hot melt adhesive which is useful as a pressure sensitive adhesive.As used herein, the “pressure sensitive” is a specific concept of “adhesive”, and the “adhesive” comprises both “pressure sensitive adhesive” and “non-pressure sensitive adhesive”.A hot melt adhesive can be used without a ...

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Номер записи: 89
19-05-2016 дата публикации

Systems and methods for bonding surfaces using a releasable adhesive

Номер: US20160136938A1
Автор: Jeffrey A. Abell, John P. Spicer, Mark A. Smith, Raymond Guo, Ryan C. Sekol, Yhu-Tin Lin
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A releasable adhesive system for joining a first surface to a second surface. The system includes a primary material having a first portion including at least one first-portion molecule configured to be positioned parallel with at least one first-surface molecule of the first surface, and a second portion, opposite the first portion, including at least one second-portion molecule configured to be positioned parallel with at least second surfaced one molecule of the second surface. The first surface molecule, positioned parallel with the first-surface molecule, is configured to maintain bonds between the first portion and the first surface up to one or more pre-determined force scenarios, such as pre-determined shear, pull, and peel forces being exerted on the first surface. The second portion can function similarly with respect to the second surface. A method is also provided for joining the first surface to the second surface using such releasable adhesive.

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Номер записи: 90
03-06-2021 дата публикации

Composition

Номер: US20210163722A1
Автор: Carl-Gustaf Ek, Floran Régis PRADES, Jingbo Wang, Klaus Bernreitner, Markus Gahleitner
Принадлежит: Borealis AG

The invention provides a polyolefin composition comprising a) 60 to 99 wt % of a polyethylene plastomer, wherein said polyethylene is a copolymer of ethylene and one or more C3-C12 α-olefins, having a density of less than 904 kg/m3; and b) 1 to 40 wt % of a polypropylene copolymer wax having a melt flow rate (MFR) at 230° C./2.16 kg of more than 400 g/10 min.

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Номер записи: 91
17-05-2018 дата публикации

Glue Compositions and Methods

Номер: US20180134935A1
Автор: Joginder Kukreja, Van R. Foster
Принадлежит: Sanford LP

Glue compositions and methods for their manufacture are provided. A glue composition contains a metallocene-catalyzed polyolefin wax present in an amount of at least 25 percent, by weight, and a tackifier present in an amount of at least 20 percent, by weight. The glue composition is solid at room temperature and is configured to provide an adhesive layer onto a substrate upon abrasion thereagainst.

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Номер записи: 92
18-05-2017 дата публикации

CARGO TRANSPORTATION CONTAINER AND METHOD OF ASSEMBLING THE SAME

Номер: US20170137216A1
Автор: GRAM Tonny
Принадлежит:

A cargo transportation container () where the inside of the container () is lined with plates (), typical the side walls () are lined with metal plates () and the ceiling () is lined with plates () made of a polymer based material. The metal plates () and the plates () of polymer based material are joined together by a connecting plate (). The connecting plates () typically are made of a polymer based material but can also be made of metal. An intermediate layer () is used to join the metal plates () and the plates () of polymer based material. 1. A cargo transportation container comprising a ceiling and side walls , a connecting plate connecting a side wall with said ceiling , said connecting plate being connected to said side wall and to said ceiling by a respective intermediate layer capable of adhering to metals and plastics materials when heated , i) said side wall and said ceiling being made of metal and said connecting plate being made of a plastic material or ii) said side wall and said ceiling being made of a plastic material and said connecting plate being made of metal , wherein the intermediate layer comprises at one side an adhesive for adhering to said metal and at an another side a hot melt material for welding to said plastic material.2. A cargo transportation container according to claim 1 , wherein the intermediate layer comprises a polymer based material.3. A cargo transportation container according to claim 1 , wherein the plastic material is PP (polypropylene).4. A cargo transportation container according to claim 2 , wherein the polymer based material is a thermoplastic elastomer material or a polypropylene thermoplastic.5. A cargo transportation container according to claim 1 , wherein the metal used for the connecting plate is steel or aluminum.6. A cargo transportation container according to claim 2 , wherein a welding grid placed between one surface of the intermediate layer and said side wall claim 2 , ceiling or connecting plate when made ...

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Номер записи: 93
09-05-2019 дата публикации

NON-STRETCHED POLYPROPYLENE-BASED FILM

Номер: US20190135962A1
Автор: CHOI Ji Ho, Jeon Sang Jin, Lee Ki Soo, LEE Won-Sang, NOH Kyung Seop, PARK Churl Young, Park Hee Kwang, SEO Ah Young
Принадлежит:

The polypropylene copolymer according to the present invention has a low melting point and also is excellent in the low temperature heat sealing effect, transparency and strength, and the film prepared therefrom can be effectively used as a sealing layer of the non-stretched polypropylene-based film. 1. A polypropylene-based film comprising a propylene-ethylene-1-butene terpolymer which has a melting point (Tm) of 125 to 135° C. , a molecular weight distribution (Mw/Mn , PDI) of 2.3 to 3.5 , and a xylene soluble (Xs) content of 2.0 wt % or less ,wherein the terpolymer has a crystallization temperature (Tc) of 75 to 87° C., andwherein, when heat-sealed at 134° C. and 0.2 MPa for 1 second, a sealing strength is 300 to 500 g/15 mm.2. The polypropylene-based film according to claim 1 , which comprises a sealing layer comprising the terpolymer.3. The polypropylene-based film according to claim 2 , which further comprises a polypropylene-based core layer and a skin layer which are sequentially formed on the sealing layer.4. (canceled)5. (canceled)7. The polypropylene-based film according to claim 6 , wherein X is chloro.8. The polypropylene-based film according to claim 6 , wherein Ris phenyl substituted by tert-butyl.9. The polypropylene-based film according to claim 6 , wherein R claim 6 , Rand Rare hydrogen.10. The polypropylene-based film according to wherein A is silicon.11. The polypropylene-based film according to claim 6 , wherein Ris 6-tert-butoxy-hexyl claim 6 , and Ris methyl.13. The polypropylene-based film according to wherein the sealing layer further comprises a propylene-based elastomer. This application claims the benefit of Korean Patent Application No. 10-2014-0173004 filed on Dec. 4, 2014 with the Korean Intellectual Property Office, the disclosure of which is herein incorporated by reference in its entirety.The present invention relates to a non-stretched polypropylene-based film, having a low xylene soluble content and capable of allowing sufficient ...

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Номер записи: 94
15-09-2022 дата публикации

Ethylene-Based Copolymer and Propylene-Alpha-Olefin-Diene Compositions for Use in Layered Articles

Номер: US20220290013A1
Автор: BAI Zhifeng, Iwashita Yuya, Joshi Milind B., Loyd Scott H., Peng Xiao Bo, Zacarias Felix M.
Принадлежит:

An elastomeric composition is provided that includes from 1 to 100 parts by weight per hundred parts by weight rubber (phr) of a first propylene-α-olefin-diene (PEDM) terpolymer comprising 70 wt % to 92.5 wt % propylene, 7.5 wt % to 30 wt % a C2 or C4-C12 α-olefin, and 3.5 wt % to 20 wt % diene, said wt % based on the weight of the PEDM terpolymer. The PEDM terpolymer V may have a Mooney viscosity (ML(1+4)) of 25 MU to 100 MU. The composition may further include from 0 to 99 phr of an ethylene-based copolymer comprising 40 wt % to 95 wt % ethylene. 1. An elastomeric composition comprising:from 1 to 100 parts by weight per hundred parts by weight rubber (phr) of a first propylene-α-olefin-diene (PEDM) terpolymer comprising 70 wt % to 92.5 wt % propylene, 7.5 wt % to 30 wt % a C2 or C4-C12 α-olefin, and 3.5 wt % to 20 wt % diene, said wt % based on the weight of the PEDM terpolymer, wherein the PEDM terpolymer has a Mooney viscosity (ML(1+4)) of 25 MU to 100 MU; andoptionally, from 0 to 99 phr of an ethylene-based copolymer comprising 40 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 60 wt % C3 to C12 α-olefin, said wt % based on the total weight of the ethylene-based copolymer.2. The elastomeric composition of claim 1 , further comprising from 1 to 90 phr of a second PEDM terpolymer comprising 1 wt % to 7 wt % of C2 or C4-12 α-olefin claim 1 , 93 wt % to 99 wt % propylene claim 1 , and 0.5 wt % to 7.5 wt % diene claim 1 , and a Mooney viscosity (ML(1+4)) of 10 to 50 MU.3. (canceled)4. The elastomeric composition claim 1 , wherein the first PEDM terpolymer comprises 10 wt % to 30 wt % α-olefin claim 1 , and 4 wt % to 10 wt % diene.5. (canceled)6. The elastomeric composition of claim 1 , wherein the first PEDM terpolymer has a Mooney viscosity of 30 to 100 MU or 61 to 100 MU.7. The elastomeric composition of claim 1 , further comprising 5 to 200 phr oil.8. (canceled)9. The elastomeric composition of claim 1 , wherein the PEDM ...

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Номер записи: 95
15-09-2022 дата публикации

Ethylene-Based Copolymer and Propylene-Alpha-Olefin-Diene Compositions for Use in Layered Articles

Номер: US20220290014A1
Автор: Brian J. ROHDE, David W. ABMAYR, Jr., Jason A. MANN, Narayanaswami Dharmarajan, Scott H. LOYD, Zhifeng BAI
Принадлежит: ExxonMobil Chemical Patents Inc

An elastomeric composition suitable for use in belts like transmission belts may comprise: from 5 to 100 phr of a propylene-α-olefin-diene (PEDM) terpolymer comprising 80 wt % to 97.5 wt % propylene, 2.5 wt % to 20 wt % a-olefin, and 0.5 wt % to 10 wt % diene, said wt % based on the weight of the PEDM terpolymer, and wherein the PEDM terpolymer has (a) Mooney viscosity (ML(1+4)) of 1 MU to 60 MU, (b) melt flow rate of 0.5 g/min to 100 g/min, and (c) a weight average molecular weight to n-average molecular weight (Mw/Mn) ratio of 1.5 to 3.0; and from 60 to 95 phr of an ethylene-based copolymer comprising 0 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 60 wt % C3 to C12 α-olefin, said wt % based on the total weight of the ethylene-based copolymer.

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Номер записи: 96
07-05-2020 дата публикации

CURABLE PETROLEUM RESIN, PREPARATION METHOD THEREOF, AND USE THEREOF

Номер: US20200140594A1
Автор: KIM Myung Jong, LEE Je Min, Lee Wan Jae, PARK Dae Soon, PARK Jun Hyo
Принадлежит: KOLON INDUSTRIES, INC.

The present disclosure relates to: a curable petroleum resin, which includes a repeating unit derived from a petroleum resin monomer, a repeating unit derived from a silane monomer and a repeating unit derived from a styrene-based monomer, and is used as an additive for a reactive polyolefin-based adhesive composition so as to increase adhesiveness to a polyolefin-based substrate used for various components; a preparation method thereof; and a use thereof. 1. A curable petroleum resin comprising a repeating unit derived from a petroleum resin monomer (A) , a repeating unit derived from a silane monomer (B) and a repeating unit derived from a styrene-based monomer (C).2. The curable petroleum resin according to claim 1 , wherein the styrene-based monomer is one or more selected from a group consisting of styrene claim 1 , α-methylstyrene claim 1 , 3-methylstyrene claim 1 , 4-methylstyrene claim 1 , 2 claim 1 ,4-dimethylstyrene claim 1 , 2 claim 1 ,5-dimethylstyrene claim 1 , 2-methyl-4-chlorostyrene claim 1 , 2 claim 1 ,4 claim 1 ,6-trimethylstyrene claim 1 , cis-β-methylstyrene claim 1 , trans-β-methylstyrene claim 1 , 4-methyl-α-methylstyrene claim 1 , 4-fluoro-α-methylstyrene claim 1 , 4-chloro-α-methylstyrene claim 1 , 4-bromo-α-methylstyrene claim 1 , 4-t-butylstyrene claim 1 , 2-fluorostyrene claim 1 , 3-fluorostyrene claim 1 , 4-fluorostyrene claim 1 , 2 claim 1 ,4-difluorostyrene claim 1 , 2 claim 1 ,3 claim 1 ,4 claim 1 ,5 claim 1 ,6-pentafluorostyrene claim 1 , 2-chlorostyrene claim 1 , 3-chlorostyrene claim 1 , 4-chlorostyrene claim 1 , 2 claim 1 ,4-dichlorostyrene claim 1 , 2 claim 1 ,6-dichlorostyrene claim 1 , ctachlorostyrene claim 1 , 2-bromostyrene claim 1 , 3-bromostyrene claim 1 , 4-bromostyrene claim 1 , 2 claim 1 ,4-dibromostyrene claim 1 , α-bromostyrene claim 1 , β-bromostyrene claim 1 , 2-hydroxystyrene claim 1 , 4-hydroxystyrene and a mixture thereof.3. The curable petroleum resin according to claim 1 , wherein the petroleum resin monomer is ...

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Номер записи: 97
31-05-2018 дата публикации

MULTILAYER POLYOLEFIN FILM CAPABLE OF LINEAR TEAR PROPAGATION

Номер: US20180148614A1
Автор: GERLACHER Harald, Schmidt Werner, SCHUHMANN Michael, SITZMANN Stefan, ZIRKEL Larissa
Принадлежит: INFIANA GERMANY GMBH & CO. KG

Multilayer polyolefin film comprising a layer sequence of a sealable layer (a) based on a polyethylene component, a layer (b) based on a polymer mixture of 51-85 wt. % of at least one polyethylene and 15-49 wt. % of at least one propylene homopolymer or copolymer and a sealable layer (c) based on a polyethylene component, wherein the melting point of the layer (a) or the layer (c) is at least 5° C. lower than the melting point of the layer (b); the tear propagation capability of the polyolefin film in the machine direction is <5 N, and the tear propagation capability transverse to the machine direction is at least four times higher than in the machine direction, and the tensile strength is >15 N approximately equal manner in machine direction as well as transversally to the machine direction. 1. A multilayer polyolefin film comprising a layer sequence of{'sup': '3', 'a) a sealable layer (a) having a layer thickness of 5-30 μm based on a polyethylene component having a density in the range from 0.910 to 0.940 g/cmand a melting point in the range from 110° C. to 130° C.,'}{'sup': '3', 'b) a layer (b) having a layer thickness of 20-90 μm based on a polymer mixture of 51-85 wt % of at least one polyethylene having a density of 0.910 to 0.940 g/cmand 15-49 wt %, based in each case on the total weight of the polymer mixture, of at least one propylene homopolymer or copolymer,'}{'sup': '3', 'c) a sealable layer (c) having a layer thickness of 5-30 μm based on a polyethylene component having a density in the range from 0.910 to 0.940 g/cmand a melting point in the range from 110° C. to 130° C., wherein the melting point of the layer (a) or of the layer (c), or of each of them, is at least 5° C. lower than the melting point of the layer (b),'}wherein the tear propagation resistance of the polyolefin film in machine direction [MD] is ≤5 N and the tear propagation resistance crosswise to the machine direction [CD] is at least four times higher than in [MD], measured in each ...

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Номер записи: 98
31-05-2018 дата публикации

LOW APPLICATION TEMPERATURE HOT MELT ADHESIVE

Номер: US20180148615A1
Автор: DeJesus Maria Cristina Barbosa, Hu Yuhong, Pollock-Downer Alethea, Sharak Matthew, Xenidou Maria
Принадлежит:

The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles. 2. The low application temperature hot melt adhesive of claim 1 , further comprising up to about 50 wt % of an additional polymer claim 1 , wherein the additional polymer is selected from the group consisting of hydrogenated styrene block copolymers claim 1 , amorphous poly-α-olefins and olefin copolymer with an average Melt Index of greater than about 35 g/10 minutes at 190° C.3. The low application temperature hot melt adhesive of claim 1 , wherein the olefin block copolymer is an ethyelen and at least one C3 to C20 alpha-olefin comonomer.4. The low application temperature hot melt adhesive of claim 3 , wherein the alpha-olefin comonomer propylene claim 3 , butene or octane.5. The low application temperature hot melt adhesive of claim 1 , wherein the tackifier is selected from polyterpenes claim 1 , aliphatic resins claim 1 , cycloaliphatic resins claim 1 , aliphatic/aromatic claim 1 , cycloaliphatic/aromatic claim 1 , natural and modified rosin esters claim 1 , and mixtures thereof.6. The low application temperature hot melt adhesive of claim 1 , wherein the optional component is selected from an antioxidant claim 1 , a filler claim 1 , a pigment claim 1 , a flow modifier claim 1 , a dyestuff and mixtures thereof.8. The low application temperature hot melt adhesive of claim 7 , further comprising up to about 50 wt % of an additional polymer claim 7 , wherein the additional polymer is selected from the group consisting of hydrogenated styrene block copolymers claim 7 , amorphous poly-α-olefins and olefin copolymer with an average Melt Index of greater than about 35 g/10 minutes at 190° C.9. The low application temperature hot melt ...

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Номер записи: 99
31-05-2018 дата публикации

HOT MELT ADHESIVES FOR BONDING ELASTOMERIC COMPONENTS, NONWOVEN MATERIALS, AND THERMOPLASTIC FILMS

Номер: US20180148616A1
Автор: Gray Steven D., OKAZAKI Genta, SECRIST Kimberly E.
Принадлежит:

A hot melt adhesive composition comprises a polymer blend based on a first polymer component having a low melting point and is selected from a polypropylene homopolymer and a copolymer of propylene and ethylene and mixtures thereof; a second polymer component comprising an amorphous polyolefin; and about 30% to about 75% by weight of a tackifying resin. The composition optionally further contains a plasticizer, an antioxidant, a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt composition has a viscosity equal to or less than about 80,000 cP at 180° C. and is useful for a variety of industrial applications including bonding together the substrates used in disposable hygiene products, such as nonwoven layers, elastic attachments, and thermoplastic films (polyolefin, polylactic acid, etc.). The hot melt adhesive composition may be dually functional, serving as an elastic component adhesive and a construction adhesive. 1. A hot melt adhesive composition comprising:(a) about 2% to about 50% by weight of a first polymer component having a low melting point and selected from the group consisting of a polypropylene homopolymer and a copolymer of propylene and ethylene and mixtures thereof;(b) about 2% to about 50% by weight of a second polymer component comprising an amorphous polyolefin; and(c) about 30% to about 75% by weight of a tackifying resin having a Ring & Ball softening point of at least about 80° C. and up to about 140° C.,wherein the viscosity of the composition is equal to or less than about 80,000 cP at 180° C.2. The composition of claim 1 , wherein the tackifying resin is present in an amount of about 32% to about 73% by weight.3. The composition of claim 1 , wherein the tackifying resin is present in an amount of about 32% to 55%.4. The composition of claim 1 , wherein the weight ratio of the first polymer component to the second polymer component varies from about 1:3 to about 5:4.5. The composition of claim ...

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Номер записи: 100