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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 4275. Отображено 100.
12-04-2012 дата публикации

Nonwoven Composite Abrasive Comprising Diamond Abrasive Particles

Номер: US20120088443A1
Автор: Alejandro Gomez, Fabio de A. Pinto, John E. Stockton, Shyiguei Hsu
Принадлежит: Saint Gobain Abrasifs SA, Saint Gobain Abrasives Inc

An abrasive article includes a support, a first polymeric binder, a second polymeric binder, and abrasive particles. The support includes a plurality of nonwoven layers. A method of forming an abrasive article includes providing a support including, applying a first coating of the first polymeric binder to the support, applying superabrasive particles to the coated support, applying a layer of a second polymeric binder overlying the superabrasive particles. The method further includes compressing the support and applying heat to cure the first polymeric binder. A method of preparing a work piece includes applying a thermal spray coating to the work piece, and polishing the thermal spray coating with the abrasive article.

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Номер записи: 1
14-06-2012 дата публикации

Abrasive article with array of composite polishing pads

Номер: US20120149279A1
Автор: Karl G. Schwappach, Zine-Eddine Boutaghou
Принадлежит: RDC Holdings LLC

An abrasive article for polishing a substrate surface. The abrasive article includes a holder pad assembly and an abrasive member held in place with respect to a holder pad. The abrasive member further includes a first surface engaged with the holder pad assembly, and a second surface including an abrasive. A preload mechanism is positioned to bias the second surfaces of the abrasive member toward the substrate surface. One or more fluid bearing features on the second surface of the abrasive member is configured to generate lift forces during relative motion between the abrasive article and the substrate surface.

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Номер записи: 2
21-06-2012 дата публикации

Method and tool for maintenance of hard surfaces, and a method for manufacturing such a tool

Номер: US20120156971A1
Автор: Hakan Thysell
Принадлежит: HTC Sweden AB

A method is disclosed for maintaining a hard surface, the method comprising treating of the surface with a flexible pad ( 1 ), in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad ( 1 ) and the hard surface. The abrasive particles comprise diamond particles, and the treating is performed in the absence of an effective amount of crystallization agent on the contact surface. A tool for use in the method is also provided, as well as a floor surfacing machine comprising such a tool and a method for manufacturing such a tool.

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Номер записи: 3
30-08-2012 дата публикации

Substrate preparation tool system and method

Номер: US20120220207A1
Автор: Daniel R. Dean
Принадлежит: GLOBAL INDUSTRY PRODUCTS CORP

A surface substrate preparation tool system comprised of a flexible foam member, a flexible abrasive member, and an adhesive member being affixed on one side to the foam member and on the other side to the abrasive member, wherein the foam member retains at least one liquid agent therein, and wherein a liquid agent can be delivered to the adhesive member or to the foam member during the surface preparation process.

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Номер записи: 4
04-10-2012 дата публикации

Flexible abrasive article and methods of making

Номер: US20120252329A1
Автор: Charles J. Studiner, IV, Charles R. Wald, Jeffrey R. Janssen, Michael. J. Annen, Paul D. Graham, Shigeaki Dohgoshi
Принадлежит: 3M Innovative Properties Co

Provided are abrasive articles having a plurality of elongated channels extending across its working surface and intersecting with each other. These channels provide hinge points that enhance flexibility of the article along two or more directions. Optionally, the abrasive article includes a flexible attachment layer, along with apertures that penetrate through the attachment layer located at the intersection points of the channels. The enhanced flexibility allows the abrasive article to easily access recessed areas of the workpiece and facilitates applying even pressure across convex and concave surfaces. The channels assist in segregating dust particles from the abrading operation, and the optional apertures can be advantageously connected to a vacuum source for evacuation of the dust particles from the channels.

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Номер записи: 5
29-11-2012 дата публикации

Polishing pad and method of producing the same

Номер: US20120302142A1
Автор: Chen-Hsiang Chao, Chung-Chih Feng, I-Peng Yao, Yung-Chang Hung
Принадлежит: San Fang Chemical Industry Co Ltd

The present invention mainly relates to a polishing pad and method of producing the same. The polishing pad comprises a base material having a surface for polishing a substrate, wherein the surface comprises a plurality of bundles of first long fibers and an elastomer embedded into the bundles. The bundles of first long fibers are entangled with each other.

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Номер записи: 6
03-01-2013 дата публикации

Abrasive articles including abrasive particles of silicon nitride

Номер: US20130000216A1
Автор: Guan Wang, Vimal K. Pujari, Yves Boussant-Roux
Принадлежит: Saint Gobain Ceramics and Plastics Inc

An abrasive article includes a body having abrasive particles contained within a bond material. The abrasive particles can include a majority content of silicon nitride and a minority content of sintering material including at least two rare-earth oxide materials. In an embodiment, the rare-earth oxide materials can include Nd 2 O 3 and Y 2 O 3 . In a particular embodiment, the abrasive particles comprise a content (wt %) of Nd 2 O 3 that is greater than a content of Y 2 O 3 (wt %).

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Номер записи: 7
28-03-2013 дата публикации

POLISHING PAD, PRODUCTION METHOD FOR SAME, AND PRODUCTION METHOD FOR GLASS SUBSTRATE

Номер: US20130078892A1
Автор: Ishizaka Nobuyoshi, SATO Akinori
Принадлежит: TOYO TIRE & RUBBER CO., LTD.

A polishing pad having a polishing layer comprising a thermoset polyurethane foam, 2. The polishing pad according to claim 1 , wherein the thermoset polyurethane foam comprises claim 1 , as raw material components claim 1 , an isocyanate component claim 1 , and active-hydrogen-containing compounds comprising 5 to 20% by weight of a polyol compound having a functional group number of 2 and a hydroxyl group value of 1 claim 1 ,100 to 1 claim 1 ,400 mg KOH/g claim 1 , and 10 to 40% by weight of a polyol compound having a functional group number of 3 and a hydroxyl group value of 200 to 600 mg KOH/g.3. The polishing pad according to claim 1 , wherein about the thermoset polyurethane foam claim 1 , the Asker C hardness value thereof claim 1 , as the 60-second value claim 1 , is 75 or less claim 1 , the hardness value being a value after the foam is immersed in water for 24 hours.4. The polishing pad according to claim 1 , wherein the value of the tensile storage modulus E′ (30° C.) at the frequency of 1.6 Hz is 100 MPa or less.5. The polishing pad according to claim 1 , wherein the thermoset polyurethane foam has substantially spherical continuous bubbles having an average bubble diameter of 20 to 300 μm.6. A method for producing a glass substrate claim 1 , comprising the step of using the polishing pad recited in to polish a glass substrate surface. This application is a national stage application under 35 USC 371 of International Application No. PCT/JP2011/056704, filed Mar. 22, 2011, which claims the priority of Japanese Patent Application No. 2010-108506, filed May 10, 2010, the entire contents of which are incorporated herein by reference.The present invention relates to a polishing pad (for rough polishing and finish polishing) used at the time of polishing a surface of a matter to be polished, for example, an optical matter such as a lens and a reflecting mirror, a silicon wafer, a glass substrate for a hard disc, or an aluminium substrate. The polishing pad of ...

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Номер записи: 8
18-04-2013 дата публикации

LIQUID RESIN COMPOSITION FOR ABRASIVE ARTICLES

Номер: US20130091778A1
Автор: Arnaud Alix, ESPIARD Philippe, Pozzolo Sandrine
Принадлежит:

The invention relates to a thermally curable liquid resin composition intended for manufacturing abrasives that comprises at least one epoxy resin comprising at least two epoxy groups and at least one reactive diluent, said composition having a viscosity, at 25° C., less than or equal to 7000 mPa·s. 1. Thermally curable liquid resin composition intended for manufacturing abrasives , characterized in that it comprises at least one resin comprising at least two epoxy groups and at least one reactive diluent , and in that it has a viscosity , at 25° C. , less than or equal to 7000 mPa·s.2. Composition according to claim 1 , characterized in that the novolac resin has a viscosity less than or equal to 6000 mPa·s.3. Composition according to or claim 1 , characterized in that the epoxy resin has an epoxide equivalent weight that varies from 160 to 700 claim 1 , preferably less than or equal to 500 and advantageously less than or equal to 350.4. Composition according to one of to claim 1 , characterized in that the epoxy resin is chosen from the epoxy resins of which the main chain is aliphatic claim 1 , cycloaliphatic or aromatic.5. Composition according to claim 4 , characterized in that the resin is an aromatic resin claim 4 , preferably of bisphenol A or F type.7. Composition according to one of to claim 4 , characterized in that the epoxy resin is chosen from epoxidized novolac resins.8. Composition according to claim 7 , characterized in that the novolac is obtained by reaction of a phenolic compound and an aldehyde in an aldehyde/phenol molar ratio which varies from 0.2 to less than 1 claim 7 , advantageously from 0.35 to 0.9 and better still from 0.5 to 0.9.10. Composition according to one of to claim 7 , characterized in that the epoxy resin represents at least 30% by weight of the resin composition claim 7 , preferably at least 40% and advantageously at least 50% claim 7 , and does not exceed 90%.11. Composition according to one of to claim 7 , characterized in ...

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Номер записи: 9
18-04-2013 дата публикации

ABRASIVE PRODUCTS AND METHODS FOR FINISHING HARD SURFACES

Номер: US20130095731A1
Автор: Manning James J., Sternberg Mark E., Wang Jianna
Принадлежит:

A coated abrasive product includes green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder, wherein the abrasive aggregates are dispersed within a polymer resin coating, and wherein the coated abrasive product is capable of superfinishing a metal surface having an initial Ra in the range of about 1.5 micro inches to about 12.5 micro inches prior to application of the coated abrasive product and after application the surface has an Ra of less than 1.0 micro inch. 1. A coated abrasive product comprising:a backing; andan abrasive slurry, polymeric resin,', 'abrasive aggregates,', 'a crosslinking agent,', 'a thixotropic agent, and', 'organic solvent,, 'wherein the abrasive slurry comprises'}wherein the abrasive aggregates are green, unfired and have a generally spheroidal or toroidal shape and are formed from a composition comprising abrasive grit particles and a nanoparticle binder, andwherein the abrasive slurry is applied to the backing.2. The coated abrasive product of claim 1 , wherein the abrasive slurry further comprises a surfactant.3. The coated abrasive product of claim 1 , wherein the polymeric resin is a polyester resin claim 1 , and epoxy resin claim 1 , or combinations thereof.4. The coated abrasive product of claim 3 , wherein the polymeric resin is a combination of polyester resin and epoxy resin.5. The coated abrasive product of claim 4 , wherein the ratio of polyester resin to epoxy resin ranges from about 1:4 to about 1:2.2.6. (canceled)7. The coated abrasive product of claim 1 , wherein the ratio of green claim 1 , unfired abrasive aggregate to polymeric resin ranges from about 1.25:1 to about 2.25:1.89.-. (canceled)10. The coated abrasive product of claim 1 , wherein the ratio of polymeric resin to crosslinking agent ranges from about 9.5:1 to about 12.5:1.11. (canceled)12. The coated abrasive product of claim 10 , ...

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Номер записи: 10
18-04-2013 дата публикации

NOISE-REDUCED ABRASIVE ARTICLES

Номер: US20130095735A1
Автор: Kerdraon Philippe, Rehfeld Marc, Zhang Han
Принадлежит:

Abrasive articles comprising a reduction layer configured to reduce noise level when the abrasive articles are in use. 1. An abrasive article comprising:two stacks coupled to one another, each stack comprising an abrasive layer coupled to a mesh layer and a reduction layer, where the surface area of one face of the reduction layer is less than the surface area of the abrasive layer and at least a portion of the abrasive layers of each stack are chemically bonded to one another.2. The abrasive article of claim 1 , where the abrasive article comprises a diameter between about 100 mm and about 400 mm.3. The abrasive article of claim 1 , where the abrasive article comprises a thickness between about 3 mm to about 10 mm.4. The abrasive article of claim 1 , where the surface area of one face of the reduction layer is between about 25% and about 80% of the surface area of one face of the abrasive layer.5. The abrasive article of claim 1 , where the reduction layer comprises paper.6. The abrasive article of claim 1 , where the reduction layer comprises PTFE.7. The abrasive article of claim 1 , where the reduction layer comprises non-woven fiber mat.8. The abrasive article of claim 1 , where the reduction layer comprises a polymer sheet with inert coating.9. The abrasive article of claim 1 , where the reduction layer comprises a thermoset.10. An abrasive article comprising:two abrasive layers; and a reduction layer between the abrasive layers;where the surface area of one face of the reduction layer is less than the surface area of one face of an abrasive layer and at least a portion of the abrasive layers are chemically bonded to one another.11. The abrasive article of claim 10 , where the abrasive article comprises a diameter between about 100 mm and about 400 mm.12. The abrasive article of claim 10 , where the abrasive article comprises a thickness between about 3 mm to about 10 mm.13. The abrasive article of claim 10 , where the surface area of one face of the reduction ...

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Номер записи: 11
25-04-2013 дата публикации

ORGANIC PARTICULATE LOADED POLISHING PADS AND METHOD OF MAKING AND USING THE SAME

Номер: US20130102231A1
Автор: Goers Brian D., Joseph William D.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Polishing pads including organic particulates in a continuous polymer phase, and methods of making and using such pads in a polishing process. In one exemplary embodiment, the polishing pads include a multiplicity of polishing elements integrally formed in a sheet. In another exemplary embodiment, the polishing elements are bonded to a support layer, for example by thermal bonding. In certain embodiments, the polishing pad may additionally include a compliant layer affixed to the support layer, and optionally, a polishing composition distribution layer. 1. A polishing pad comprising:a sheet having a first major side and a second major side opposite the first major side, anda plurality of polishing elements extending outwardly from the first major side along a first direction substantially normal to the first major side, wherein at least a portion of the polishing elements are integrally formed with the sheet and laterally connected so as to restrict lateral movement of the polishing elements with respect to one or more of the other polishing elements, but remaining moveable in an axis substantially normal to a polishing surface of the polishing elements, wherein at least a portion of the plurality of polishing elements comprise an organic particulate filler in a continuous polymer phase.2. A polishing pad comprising a support layer having a first major side and a second major side opposite the first major side , anda plurality of polishing elements bonded to the first major side of the support layer, wherein each polishing element has an exposed polishing surface, andwherein the polishing elements extend from the first major side of the support layer along a first direction substantially normal to the first major side, further wherein at least a portion of the plurality of polishing elements comprise an organic particulate filler in a continuous polymer phase.3. The polishing pad of claim 2 , wherein each polishing element is affixed to the first major side by ...

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Номер записи: 12
23-05-2013 дата публикации

Backingless Abrasive Article

Номер: US20130125474A1
Автор: Daniel S. Montuori, Leland E. Moll, Ramaswamy Sankaranarayanan
Принадлежит: Individual

An abrasive article includes an abrasive layer having an array of protrusions. The abrasive layer has a thickness not greater than about 500 mils. The abrasive article is free of a backing layer.

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Номер записи: 13
23-05-2013 дата публикации

Hybrid Abrasive Hand Pad and Method of Abrading a Surface

Номер: US20130130600A1
Автор: Deyue Yu, Tony R. Carrozzella, William G. Suzuki, Zhijun Zhang
Принадлежит: 3M Innovative Properties Co

An abrasive hand pad includes a coaled abrasive member secured to a nonwoven abrasive member. Methods of abrading a surface of a workpiece are also disclosed.

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Номер записи: 14
20-06-2013 дата публикации

NONWOVEN ABRASIVE WHEEL

Номер: US20130157544A1
Автор: Erickson Carl P., Hawkins Ann M., McArdle James L., Moris Alice B.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A nonwoven abrasive wheel comprising one or more layers of a nonwoven fiber web, a plurality of super abrasive particles having a Vickers hardness greater than 40 GPa, a polyurethane binder adhering the plurality of super abrasive particles to the nonwoven fibers and adhering the layers of the nonwoven fiber web to each other, and wherein the nonwoven abrasive wheel comprises a Flexural Modulus from 4.0 to 128.0 lb/inch of thickness per inch of displacement. 1. A nonwoven abrasive wheel comprising: one or more layers of a nonwoven fiber web , a plurality of super abrasive particles having a Vickers hardness greater than 40 GPa , a polyurethane binder adhering the plurality of super abrasive particles to the nonwoven fibers and adhering the layers of the nonwoven fiber web to each other , and wherein the nonwoven abrasive wheel comprises a Flexural Modulus from 4.0 to 128.0 lb/inch of thickness per inch of displacement.2. The nonwoven abrasive wheel of comprising a unitized abrasive wheel.3. The nonwoven abrasive wheel of comprising 2 to 10 layers of the nonwoven web.4. The nonwoven abrasive wheel of wherein the super abrasive particles comprise diamonds having an average size from 1 to 45 micrometers.5. The nonwoven abrasive wheel of wherein the polyurethane binder comprises a durometer hardness from 35 to 80 Shore D.6. The nonwoven abrasive wheel of wherein the Flexural Modulus is from 100.0 to 125.0 lb/inch of thickness per inch of displacement.7. A method of producing a specular finish on a carbide surface comprising contacting the carbide surface with the nonwoven abrasive wheel of . Metal fabrication tools, including drill bits, end mills, and similar cutting tools, are frequently fabricated from extremely hard materials such as cemented or metal bonded carbides to remain sharp for extended periods of time in use. Metal fabrication tools often have helically-disposed or straight cutting edges and flutes. In order to promote easier removal of cut metal, the tool ...

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Номер записи: 15
20-06-2013 дата публикации

POLISHING CLOTH AND METHOD FOR PRODUCING SAME

Номер: US20130157551A1
Автор: Endo Masanori, Matsuzaki Yukihiro, Nishimura Hajime, Yanagisawa Satoshi
Принадлежит: Toray Industries, Inc.

A high performance polishing cloth having a densified surface state with ultrafine fiber bundles uniformly dispersed therein and having excellent smoothness is provided. The polishing cloth comprises a nonwoven fabric formed by entangling the ultrafine fiber bundles formed by bundling ultrafine fibers with an average single fiber diameter of 0.05 to 2.0 μm and a polymeric elastic material, wherein the average size of the surface fiber-napped portions constituted by the aforementioned ultrafine fiber bundles of the aforementioned nonwoven fabric in the width direction of the ultrafine fiber bundles is 50 to 180 μM. 1. A polishing cloth mainly comprising a nonwoven fabric formed by entangling the ultrafine fiber bundles including ultrafine fibers with an average single fiber diameter of 0.05 to 2.0 μm and a polymeric elastic material , wherein the average size of the surface fiber-napped portions constituted by the aforementioned ultrafine fiber bundles of the aforementioned nonwoven fabric in the width direction of the ultrafine fiber bundles is 50 to 180 μm.2. A polishing cloth claim 1 , according to claim 1 , wherein the average size of the surface fiber-napped portions in the width direction of the ultrafine fiber bundles is 50 to 120 μm.3. A polishing cloth claim 1 , according to or claim 1 , wherein the surface roughness of the polishing cloth is 5 to 18 μm.4. A polishing cloth claim 1 , according to claim 1 , wherein the CV of the ultrafine fiber is 1 to 30%.6. A method for producing a polishing cloth claim 5 , according to claim 5 , wherein the number of islands-in-sea type composite fibers brought in by needle punching is 3 to 4 fibers/1 barb. This application is the U.S. National Phase application of PCT International Application No. PCT/JP2011/068645, filed Aug. 18, 2011, and claims priority to Japanese Patent Application No. 2010-194353, filed Aug. 31, 2010, the disclosures of each application being incorporated herein by reference in their entireties for ...

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Номер записи: 16
01-08-2013 дата публикации

Abrasive articles

Номер: US20130196581A1
Автор: Paul S. Lugg, Zine-Eddine Boutaghou
Принадлежит: 3M Innovative Properties Co

An abrasive article is provided. The article includes (a) a flexible backing having opposing first and second surfaces; (b) an abrasive layer comprising plurality of abrasive particles disposed on the first surface of the flexible backing; and (c) an adhesive layer comprising load bearing particles and an adhesive matrix, the adhesive layer disposed on the second surface of the polymer layer. At least a portion of the load bearing particles is substantially enveloped in the adhesive matrix and is in contact with the second surface of the polymer substrate.

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Номер записи: 17
08-08-2013 дата публикации

Bonded Abrasive Wheel

Номер: US20130203328A1
Автор: Maiken Givot, Mark G. Schwabel
Принадлежит: 3M Innovative Properties Co

A bonded abrasive wheel comprises ceramic shaped abrasive particles retained in a binder. The ceramic shaped abrasive particles are bounded by a respective base, top and plurality of sides connecting the base and the top. Adjacent sides meet at respective side edges having an average radius of curvature of less than 50 micrometers.

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Номер записи: 18
29-08-2013 дата публикации

Methods for Producing a Coated Abrasive Article for Polishing or Lapping Applications

Номер: US20130219800A1
Автор: Guiselin Olivier L.
Принадлежит:

Methods are provided for forming an abrasive coating on a surface of a backing. An abrasive slurry includes a continuous phase, a first discontinuous phase of abrasive particles dispersed in the continuous liquid phase, and a second discontinuous phase of binder precursor particles dispersed in the continuous liquid phase, so that the continuous liquid phase carries the first and second discontinuous phases. A coated abrasive article is formed by coating the abrasive slurry onto the surface of the backing, and then removing the continuous phase. 1. A method of manufacturing a coated abrasive article comprising:(a) providing a flexible backing having a surface configured for being coated with an abrasive coating;(b) providing an abrasive slurry including a continuous liquid phase, which comprises at least 50% per weight of water, and at least 0.001% per weight of fluorosurfactant;a first discontinuous phase including abrasive particles dispersed in the continuous liquid phase; anda second discontinuous phase including a waterborne binder precursor particle dispersion in the continuous liquid phase,wherein the continuous liquid phase carries the first and second discontinuous phases,wherein the volume ratio of abrasive particles to binder precursor particles is 0.05 to 3, and wherein the first and the second discontinuous phases comprise between 5% and 60% of the abrasive slurry by volume;(c) coating the abrasive slurry onto the surface of the flexible backing;(d) removing at least 50% per weight of the continuous liquid phase by evaporation; and(e) coalescing the binder precursor particles at the surface of the flexible backing to form a coating with solid continuous binder phase disposed about the abrasive particles.3. The method of claim 2 , wherein the continuous liquid phase comprises at least about 90% per weight of water and wherein the abrasive and binder precursor particles comprise between 5% and 50% of the slurry by volume and the method comprises removing ...

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Номер записи: 19
29-08-2013 дата публикации

Abrasive pad assembly

Номер: US20130225051A1
Автор: Raymond Vankouwenberg
Принадлежит: Individual

An abrasive pad assembly, for use with a surfacing machine, includes a circular pad member and a diamond abrasive member. The circular pad member includes an exterior surface and the diamond abrasive member is affixed to the exterior surface of the circular pad member. The diamond abrasive member includes an insert and a diamond abrasive material. The insert has a first surface affixed to the exterior surface of the circular pad member. The diamond abrasive material is a polycrystalline diamond substance that is affixed to the second surface of the insert. The polycrystalline diamond material is spaced apart from the exterior surface of the circular pad member.

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Номер записи: 20
05-09-2013 дата публикации

Apparatus and composition for sharpening a paper shredder blade, and preparation process therefor

Номер: US20130227893A1
Автор: Hsin-hsiung Chen
Принадлежит: Aurora Office Equipment Co., Ltd. Shanghai

Composition, apparatus, and methods of composition and apparatus manufacture, for sharpening a paper shredder blade. Composition includes grinding powder, thickening agent, and additive. The thickening agent may be a white oil, an animal oil, an vegetable oil, or a stearine wax. The additive may be an antirust powder, an antiwear powder, an antistatic powder, or an antioxidation powder. The grinding composition is dispensed into a polyethylene film, and sealed to form the grinding apparatus, as a grinding sheet or a grinding packet. A method for forming a grinding sheet includes selecting the constituent materials for a grinding composition; stirring the constituent grinding composition materials; heating the constituent materials to melting; mixing the constituent materials, while melting and intermixing; cooling and packaging the grinding composition to form a grinding sheet or packet.

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Номер записи: 21
12-09-2013 дата публикации

POLISHING PAD COMPRISING TRANSMISSIVE REGION

Номер: US20130237136A1
Автор: Newell Kelly, PRASAD Abaneshwar
Принадлежит: Cabot Microelectronics Corporation

The invention provides a polishing pad comprising an optically transmissive region, wherein the polishing pad comprises a polishing pad body comprising an opaque first region and an optically transmissive second region, wherein the second region has at least one recess formed therein of at least one part of the polishrag pad body, and at least one translucent window insert is integrated into the at least one recessed area. The polishing pad body and the at least one translucent window insert comprise different porous. materials. 1. A polishing pad comprising an optically transmissive region , wherein the polishing pad comprises: (a) a polishing pad body comprising a first region and a second region , wherein the first region is opaque , wherein the second region is optically transmissive , wherein the second region has at least one recess formed therein , and (b) at least one translucent insert integrated into the at least one recess , wherein the polishing pad body comprises a first porous material and the at least one translucent insert comprises a second porous material that differs from the first porous material.2. The polishing pad of claim 1 , wherein the polishing pad body comprises a first thermoplastic polymer and the at least one translucent insert comprises a second thermoplastic polymer that differs from the first thermoplastic polymer.3. The polishing pad of claim 1 , wherein the translucent insert comprises a first thermoplastic polymer and a second thermoplastic polymer claim 1 , and wherein the first and second thermoplastic polymers are immiscible and form distinct phases within the translucent window.4. The polishing pad of claim 1 , wherein the translucent insert further comprises particles of a material that differs from the second porous material.5. The polishing pad of claim 4 , wherein the particles comprise a material that is soluble in water.6. The polishing pad of claim 1 , wherein the translucent insert has a void volume of 0.1% to 10%.7. ...

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Номер записи: 22
19-09-2013 дата публикации

ABRASIVE WHEELS AND METHODS FOR MAKING AND USING SAME

Номер: US20130244542A1
Автор: Meerveld Taeke, Milani Alessandro R., Rozanska-Zaworska Karolina, Versteegen Marko W., WOJCIECHOWSKI Grzegorz
Принадлежит:

Abrasive articles including a body having a first abrasive layer, a second abrasive layer and one or more reinforcing layers for use with cordless tools have a reduced thickness with respect to conventional counterparts. Techniques for producing and using such abrasive articles are described. In one embodiment, the first abrasive layer and the second abrasive layer comprise abrasive particles in a bond material. In an embodiment, a reinforcing layer is disposed between the first abrasive layer and the second abrasive layer. In a particular embodiment, the body comprises an average thickness of not greater than about 5 mm. In another particular embodiment, the abrasive particles can comprise silicon carbide. 131-. (canceled)32. An abrasive article comprising: a first abrasive layer comprising abrasive particles contained in a bond material, the abrasive particles comprising silicon carbide; and', 'wherein the body comprises an average thickness of not greater than about 5 mm., 'a body configured to be used with a cordless handheld tool, the body including33. (canceled)34. The abrasive article of claim 32 , wherein the abrasive particles of the first abrasive layer comprise an average particle size of not greater than about 500 microns claim 32 , and at least about 0.1 microns.35. The abrasive article of claim 32 , wherein the first abrasive layer comprises not greater than about 80 wt % abrasive particles for the total weight of the first abrasive layer claim 32 , and at least about 5 wt %.36. The abrasive article of claim 32 , wherein the bond material comprises an organic material selected from the group consisting of epoxy resins claim 32 , polyester resins claim 32 , polyurethanes claim 32 , polyester claim 32 , rubber claim 32 , polyimide claim 32 , polybenzimidazole claim 32 , aromatic polyamide claim 32 , modified phenolic resins claim 32 , and a combination thereof claim 32 , wherein the bond material consists essentially of a resin.37. The abrasive article ...

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Номер записи: 23
19-09-2013 дата публикации

Universal Abrasive Sheet

Номер: US20130244554A1
Автор: HOLLAND Matthew J., SHERMER Jason C.
Принадлежит: BLACK & DECKER INC.

A universal abrasive sheet is provided for a sanding or polishing machine and includes segments defined by weakened regions that allow portions of the universal abrasive sheet to be removed in order to adapt the abrasive sheet to alternative platent configurations. Each of the different configurations of the universal abrasive sheet can be provided with an individualized tip portion which can be separated from a body portion and either repositioned or replaced in order to change the working point of the tip portion when it becomes worn out. 1. A universal abrasive sheet for use with alternative sanding or polishing machines having platens with different configurations , comprising:a sheet material having an abrasive material disposed on a face and having a body portion provided with a first configuration adapted to be used with a first platen configuration and having first marking segments, wherein said sheet material is adapted to be separated along said first marking segments to provide said body portion of said sheet material with a second configuration that is different from said first configuration that corresponds with a second platen configuration having different external dimensions, said first configuration having a first iron shaped perimeter with two arcuate first side edges converging at a tip portion and extending from the tip portion to opposite sides of a first base edge portion having a first width, said first configuration having a first length dimension from said tip portion to said first base edge, said second configuration having a second iron shaped perimeter with two arcuate second side edges converging at the tip portion and extending from the tip portion to opposite sides of a second base edge portion having a second width narrower than said first width, wherein at least a portion of said second side edges are narrower than at least a portion of said first side edges, said second configuration having a second length dimension from said tip ...

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Номер записи: 24
10-10-2013 дата публикации

AQUEOUS RESIN COMPOSITION FOR ABRASIVE ARTICLES AND RESULTING ARTICLES

Номер: US20130263520A1
Автор: Arnaud Alix, Herbert Charles G., Houga Clement
Принадлежит:

An aqueous polymer binder composition adapted for the manufacture of abrasive articles, such as coated abrasive articles, comprising at least one resin containing at least two azetidinium groups and at least one saccharide. The aqueous composition is formaldehyde-free and can further comprise proteins, starch grafted acrylic styrene, co-cross-linking agents, rheology modifiers, fillers, and hydrophobizing agents. 120.-. (canceled)21. A coated abrasive article comprising:a backing; andan abrasive layer overlying the backing; abrasive particles and', at least one saccharide and', 'a resin having at least two azetidinium groups., 'a polymer binder composition including'}], 'wherein the abrasive layer comprises'}22. A coated abrasive article comprising:a backing; andan abrasive layer overlying the backing; and at least one saccharide and', 'a resin having at least two azetidinium groups., 'a polymer binder composition including'}, 'a size coat comprising'}23. A coated abrasive article comprising:a backing;abrasive particles; and about 5.0 wt % to about 40 wt % saccharide,', 'about 5.0 wt % to about 30 wt % azetidinium resin,', 'not greater than about 30 wt % protein; and', 'not greater than about 15 wt % hydrophobic additive., 'a polymer binder composition comprising, based on the weight of the polymer binder composition,'}2423. A coated abrasive article according to , , or wherein the saccharide is corn syrup , dextrin , or a combination thereof.2523. A coated abrasive article according to , , or wherein the ratio of the saccharide to azetidinium resin is in a range of 4:1 to 1:1.2623. A coated abrasive article according to , , or wherein the polymer binder further comprises at least one member selected from the group consisting of proteins , starch grafted acrylic styrenes , co-cross-linking agents , rheology modifiers , and hydrophobic additives.27. A coated abrasive article according to or wherein the polymer binder further comprises a protein , a co-cross-linking ...

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Номер записи: 25
24-10-2013 дата публикации

ABRASIVE ARTICLE HAVING MULTI-DIRECTIONAL ABRASION PROTRUSION

Номер: US20130280994A1
Автор: KANG Yeong-Gon
Принадлежит: Deerfos Co., Ltd.

An abrasive article having a multi-directional abrasion protrusion according to an exemplary embodiment of the present invention includes a flexible base substrate, and a plurality of abrasion protrusions integrally molded with the base substrate and having at least three sides forming a triangle, in which a plurality of abrasion protrusions has a directional property by grouping. 1. An abrasive article having a multi-directional abrasion protrusion comprising:a flexible base substrate, anda plurality of abrasion protrusions integrally molded with the base substrate and having at least three sides forming a triangle,wherein the plurality of abrasion protrusions has a directional property by grouping.2. The abrasive article having a multi-directional abrasion protrusion of claim 1 , wherein:in the case where the abrasion protrusions are a tetrahedron, the abrasion protrusions include a first abrasion protrusion arranged in a first direction and a second abrasion protrusion arranged in a direction that is opposite to at least the first direction.3. The abrasive article having a multi-directional abrasion protrusion of claim 2 , wherein:the six abrasion protrusions are grouped to constitute a hexahedron.4. The abrasive article having a multi-directional abrasion protrusion of claim 1 , wherein:in the case where the abrasion protrusion has a rectangle base portion and four lateral sides extending from four lateral sides of the base portion to vertexes, the lateral sides of the base portion have different lengths.5. The abrasive article having a multi-directional abrasion protrusion of claim 1 , wherein:a hexagonal base portion, a first abrasion protrusion having six lateral sides extending from six lateral sides of the base portion to vertexes, and a second abrasion protrusion including any one of the six lateral sides of the base portion of the first abrasion protrusion, in which lengths of the residual lateral sides are different from a length of any one of the six ...

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Номер записи: 26
31-10-2013 дата публикации

ABRASIVE PRODUCTS AND METHODS FOR FINE POLISHING OF OPHTHALMIC LENSES

Номер: US20130283702A1
Автор: Manning James J., Sternberg Mark E., Wang Jianna
Принадлежит:

A coated abrasive product including green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder, wherein the abrasive aggregates are dispersed within a polymer resin coating, and wherein the coated abrasive product is capable of polishing an optical component, including ophthalmic lenses without the need to apply an abrasive slurry. 1. A coated abrasive product comprising:a backing;an abrasive slurry, anda supporting substrate, polymeric resin,', 'abrasive aggregates,', 'a crosslinking agent,', 'a thixotropic agent, and', 'organic solvent,, 'wherein the abrasive slurry comprises'}wherein the abrasive aggregates are green, unfired and have a generally spheroidal or toroidal shape and are formed from a composition comprising abrasive grit particles and a nanoparticle binder, andwherein the abrasive slurry is applied to the backing, andwherein the supporting substrate is disposed onto the bottom of the backing.2. The coated abrasive product of claim 1 , wherein the coated abrasive product is shaped to conform to the support of an ophthalmic polishing machine.3. (canceled)4. The coated abrasive product of claim 1 , wherein the ratio of green claim 1 , unfired abrasive aggregate to polymeric resin ranges from about 0.5:1 to about 1.25:1.5. The coated abrasive product of claim 1 , wherein the ratio of polymeric resin to crosslinking agent ranges from about 5:1 to about 50:1.6. The coated abrasive product of claim 1 , wherein the abrasive slurry further comprises a surfactant.7. The coated abrasive product of claim 1 , wherein the polymeric resin is a polyester resin claim 1 , an epoxy resin claim 1 , or combinations thereof.8. The coated abrasive product of claim 7 , wherein the polymeric resin is a combination of polyester resin and epoxy resin.9. The coated abrasive product of claim 8 , wherein the ratio of polyester resin to epoxy resin ranges ...

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Номер записи: 27
31-10-2013 дата публикации

HIGH PERFORMANCE CERAMIC ABRASIVE GRITS OF UNIFORM THICKNESS AND METHODS OF PRODUCING AND USING THE SAME

Номер: US20130288574A1
Автор: Angelone Angelo R., Seider Robert
Принадлежит:

A ceramic abrasive grain product of a ceramic material composition, said ceramic abrasive grain product comprising at least fifty percent of abrasive grains having a uniform grain thickness of from 0.002 to 0.016 inches and a length such that the grain is self dressing when oriented such that the thickness of the grain is exposed to a workpiece, abrasive products made therefrom and method for manufacturing and using same. 1. A ceramic abrasive grain product of a ceramic material composition , said ceramic abrasive grain product comprising at least fifty percent of abrasive grains having a uniform grain thickness of from 0.002 to 0.016 inches and a length such that the grain is self dressing when oriented such that the thickness of the grain is exposed to a workpiece.2. The ceramic abrasive grain product of claim 1 , wherein the abrasive grains are crushed claim 1 , extruded and fired sol gel.31. The ceramic abrasive grain product of wherein the abrasive grains are crushed extruded and fired sol gel ribbons.4. The ceramic abrasive grain product of comprising crushed ceramic bubbles formed from blown and sintered sol gel ceramic material.5. The ceramic abrasive grain product of wherein the abrasive grains are crushed extruded and fired sol gel filaments or rods.6. The ceramic abrasive grain product of wherein the ceramic material of the abrasive product is selected from the group consisting of fused and solidified white alumina claim 1 , fused and solidified brown alumina claim 1 , fused and solidified alumina-zirconia ceramic alloy claim 1 , fused and solidified alumina-titania ceramic alloy claim 1 , and solidified and sintered alumina sol gel.7. A coated abrasive product comprising a sheet material having ceramic abrasive grain product of partially embedded in a resin layer on a base layer.8. A coated abrasive product comprising a sheet material having ceramic abrasive grain product of partially embedded in a resin layer on a base layer.9. A coated abrasive product ...

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Номер записи: 28
07-11-2013 дата публикации

ABRASIVE ARTICLE WITH REPLICATED MICROSTRUCTURED BACKING AND METHOD OF USING SAME

Номер: US20130295821A1
Автор: Boutaghou Zine-Eddine, Lugg Paul S.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

An abrasive article is provided that includes a flexible backing having opposed first and second major surfaces. The first major surface includes a plurality of abrasive particles in at least one binder disposed thereon. The second major surface includes replicated microstructures having recesses. The abrasive article also includes adhesive contained substantially in the recesses of the replicated microstructures. A rigid substrate can be in contact with at least a portion of the replicated microstructures. Also provide is a method of polishing a work-piece that uses the provided articles.

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Номер записи: 29
07-11-2013 дата публикации

POLISHING PAD FOR ENDPOINT DETECTION AND RELATED METHODS

Номер: US20130295826A1
Автор: Birang Manoocher, Swedek Boguslaw A.
Принадлежит:

A polishing pad has a polishing layer with a polishing surface and a back surface. A plurality of grooves are formed on the polishing surface, and an indentation is formed in the back surface of the polishing layer. A region on the polishing surface corresponding to the indentation in the back surface is free of grooves or has shallower grooves. 139-. (canceled)40. A polishing pad , comprising:a polishing piece having a polishing surface, a bottom surface, and an aperture extending from the polishing surface to the bottom surface, the polishing piece including a polishing layer having the polishing surface, the polishing piece having a plurality of grooves formed in the polishing surface, the grooves extending partially but not entirely through the polishing layer; anda solid light-transmissive window situated in the aperture and secured to the polishing piece, the window having a lower surface and an upper surface, the upper surface substantially coplanar with the polishing surface and lacking grooves, the lower surface having an indentation that extends partially but not entirely through the window, wherein the indentation is empty, and wherein the window is configured such that the upper surface is substantially fixed relative to the polishing surface.41. The polishing pad of claim 40 , wherein the polishing piece includes a backing layer having the bottom surface.42. The polishing pad of claim 41 , wherein the backing layer is softer than the polishing layer.43. The polishing pad of claim 41 , wherein the backing layer is non-compressible.44. The polishing pad of claim 41 , wherein the aperture includes a first section through the polishing layer and a second section through the backing layer claim 41 , and wherein the first section is wider than the second section.45. The polishing pad of claim 45 , wherein a portion of the bottom surface at the periphery of the window rests on a portion of the backing layer surrounding the second section of the aperture.46. ...

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Номер записи: 30
07-11-2013 дата публикации

GRINDING BODY

Номер: US20130295827A1
Автор: Tack Johannes
Принадлежит:

A grinding body (), which consists of a support material () and an abrasive () adhesively applied thereto, is formed such that the grinding body () has an abrasive-free rim that laterally adjoins the active region of the abrasive (). 115212. A grinding body () , consisting of a carrier material () and an abrasive () adhesively applied thereto , characterized in that the grinding body () has an abrasive-free edge , which laterally delimits the active region of the abrasive ().232. The grinding body according to claim 1 , characterized in that the abrasive-free edge is formed by an applied material () claim 1 , which smooths the structure of the abrasive ().313. The grinding body () according to claim 2 , characterized in that it is a mineral material or a polymer material ().413. The grinding body () according to claim 3 , characterized in that plaster is provided as a mineral material ().513. The grinding body () according to claim 3 , characterized in that a two-component lacquer is provided as a polymer material ().613. The grinding body () according to claim 3 , characterized in that a two-component polyester resin is provided as a polymer material ().7132. The grinding body () according to claim 2 , characterized in that the material () which smooths the structure of the abrasive () is applied in a thickness of 30 to 40 μm.8132. The grinding body () according to claim 2 , characterized in that the material () which smooths the structure of the abrasive () is applied by screen printing claim 2 , pad printing claim 2 , spray lacquering claim 2 , stamping claim 2 , brush application claim 2 , immersion claim 2 , or gluing.915. The grinding body () according to claim 1 , characterized in that a fabric claim 1 , paper claim 1 , a plastic film claim 1 , or a carrier plate is used as the carrier material ().101254. The grinding body () according to claim 1 , characterized in that the abrasive () adheres to the carrier material () by way of a binding agent ().1116152. ...

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Номер записи: 31
14-11-2013 дата публикации

ABRASIVE PRODUCTS AND METHODS FOR FINISHING SURFACES

Номер: US20130298471A1
Автор: Cai Ying, Manning James J., Wang Jianna
Принадлежит:

An engineered coated abrasive product having a three dimensional pattern of abrasive structures formed by embossing an abrasive slurry formulation that was first surface coated with a functional powder, wherein the abrasive slurry includes green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder. The coated abrasive product is capable of finishing and repairing defects in surfaces, including coated surfaces. 1. An engineered coated abrasive product comprising:a backing;an abrasive slurry composition, andfunctional powder, polymeric resin, and', 'abrasive aggregates dispersed within the polymeric resin,, 'wherein the abrasive slurry composition comprises'}wherein the abrasive aggregates are green, unfired and have a generally spheroidal or toroidal shape and are formed from a composition comprising abrasive grit particles dispersed in a nanoparticle binder,wherein the abrasive slurry is disposed on the backing,wherein the functional powder is disposed on the surface of the abrasive slurry composition,wherein at least the surface of the abrasive slurry composition is plastic but non-flowing, andwherein the surface of the abrasive slurry composition is embossed with a pattern.2. An engineered coated abrasive product comprising:a backing;a cured abrasive composition, andfunctional powder, cured polymeric resin, and', 'abrasive aggregates dispersed within the cured polymeric resin,, 'wherein the cured abrasive composition comprises'}wherein the abrasive aggregates are green, unfired and have a generally spheroidal or toroidal shape and are formed from a composition comprising abrasive grit particles dispersed in a nanoparticle binder,wherein the cured abrasive composition is disposed on the backing,wherein the functional powder is disposed on the surface of the cured abrasive composition, andwherein the surface of the abrasive composition is ...

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Номер записи: 32
21-11-2013 дата публикации

ABRASIVE PRODUCTS HAVING FIBRILLATED FIBERS

Номер: US20130305614A1
Автор: CSILLAG Frank J., EVERTS Darrell K., Gaeta Anthony C., Herbert Charles G., KHATAMI Kamran, Labrecque Julienne, Seth Anuj
Принадлежит:

An engineered coated abrasive product having a backing, a frontfill coat, a make coat, and/or a size coat, wherein at least one of the coats includes fibrillated fibers. The coated abrasive product is capable of improved inter-layer adhesion, retention of abrasive grains, and/or maintenance of abrasive grains in a more desirable orientation for grinding. 1. An article for use as an abrasive , comprising:a backing; andone or more polymeric formulations disposed on the backing,at least one of the one or more polymeric formulations including extensions, wherein the extensions include fibrillated fibers, wherein the extensions extend between 140 μm and 415 μm above the mean plane of at least one of the one or more polymeric formulations.2. (canceled)3. The article of claim 1 , wherein the extensions extend between 280 μm and 560 μm above the deepest hole of at least one of the one or more polymeric formulations.45.-. (canceled)6. The article of claim 1 , wherein the fibrillated fibers include fibrillated fibers chosen from the group consisting of natural fibers claim 1 , synthetic fibers claim 1 , organic fibers claim 1 , inorganic fibers claim 1 , polymeric fibers claim 1 , aramid fibers claim 1 , poly-aramid fibers claim 1 , polypropylene fibers claim 1 , acrylic fibers claim 1 , cellulose fibers claim 1 , and combinations thereof.7. The article of claim 6 , wherein the fibrillated fibers include poly-paraphenylene terephthalamide pulp.89.-. (canceled)10. The article of claim 1 , wherein the fibrillated fibers have a specific surface area between 7.00-11.0 m2/g.11. The article of claim 1 , wherein the fibrillated fibers have a bulk density between 0.0481-0.112 g/cc (0.00174-0.0045 lb/in3).12. The article of claim 1 , wherein the fibrillated fibers have a length between 50 μm and 1000 μm.13. The article of any of claim 1 , wherein the fibrillated fibers have a diameter between 15 μm and 1000 μm.14. The article of any of claim 1 , wherein the fibrillated fibers have a ...

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Номер записи: 33
21-11-2013 дата публикации

ANTISTATIC FLEXIBLE ABRASIVE WITH A COMBINED SUPPORT

Номер: US20130309952A1
Автор: Gottardelli MIchele
Принадлежит: NAPOLEON ABRASIVES S.P.A.

A flexible antistatic abrasive with a combined support () consisting of a plastic film (), on which binder resins () are applied, consisting of a “maker coat” (), on which the abrasive () adheres, fixed by a “size coat” () and if necessary coated with a third binder (), in which the plastic support film () is laminated with at least one reinforcement substratum or base support () and in which all the components of the combined support are treated with materials designed to provide the support with antistatic properties. 110138141615171312. A flexible and antistatic abrasive with a combined antistatic support () comprising a plastic film support () coated with binding resins () , consisting of a first layer of binder conventionally known as a “maker coat” () , with abrasive in granules () fixed by a second layer of binder conventionally known as a “size coat” () and , if necessary , coated with a third layer of binder (also known as “supersize coat”) () , in which the plastic film support () is fixed by means of an appropriate antistatic adhesive to at least one antistatic reinforcement substratum of base support () in paper , in fabric , in fabric-non-fabric , in particular Velcro or similar , or in sponge , characterized in that , with the aim of providing the flexible abrasive with antistatic properties , the binding resins and the adhesives or glues of the combined support include carbon black and/or graphite and/or metal salts or similar (more in general substances that allow ion exchange) , and in that the reinforcement substratum:a. if it is paper includes carbon black and/or graphite and/or metal salts,b. if it is fabric or fabric-non-fabric consists of a compound able to form a reticulated polymer structure around the filaments; and c. if it is sponge the sponge is the ion exchange type.21012192021222324252622232930. A flexible and antistatic abrasive () according to claim 1 , characterized in that the combination between the plastic film support (II) and ...

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Номер записи: 34
05-12-2013 дата публикации

Diamond impregnated polishing pad with diamond pucks

Номер: US20130324021A1
Автор: Webster Ryan
Принадлежит: Individual

An abrasive pad for use on hard surfaces is described. The pad includes a fibrous, non-woven body with an abrasive coating containing diamond particles applied to a first side thereof. A plurality of diamond-impregnated abrasive elements is affixed to the first side. One or more of the abrasive elements are located near an outer edge of the first side of the pad. A resilient reinforcing material is applied to the outer edge of the pad to resist compression of the pad and to maintain adjacent abrasive elements parallel to a surface being worked on. The abrasive elements at least partially recess into the pad body and enable simultaneous contact of the abrasive elements and the pad with the surface being worked on. Thereby, multiple surface-preparation steps, e.g. polishing and burnishing, are completed simultaneously reducing surface-preparation time and eliminating separate surface-preparation steps.

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Номер записи: 35
26-12-2013 дата публикации

COATED ABRASIVE ARTICLE WITH FOAM BACKING AND METHOD OF MAKING

Номер: US20130344784A1
Автор: Braunschweig Ehrich J., Eckel Joseph B., Keipert Steven J.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A polyurethane foam backing suitable for making a coated abrasive article is disclosed. The polyurethane foam backing has a textured surface bearing an array of raised features and land areas. The array's geometry is designed such that a 90 degree peel force to remove a production tooling having a contacting surface bearing a plurality of microreplicated mold cavities from the textured surface is accept able. 1. A coated abrasive article comprising: a polyurethane foam backing having at least one textured surface and an abrasive layer comprising a make coat and abrasive particles on an opposing surface , the textured surface bearing an array of raised features and land areas , the textured surface having a Total Surface Area (in) per 1 inequal to or less than 1.400 , and wherein the polyurethane foam backing has substantially uniform density.2. The coated abrasive article of wherein a density of the polyurethane foam backing is from 2 to 8 lbs/ft(32 to 129 kg/m).3. The coated abrasive article of wherein a thickness claim 1 , T claim 1 , of the polyurethane foam backing is from 3 to 7 mm.4. The coated abrasive article of claim 1 , wherein a height claim 1 , H claim 1 , of the raised feature is from 10 to 100 mils (0.25 to 2.54 mm).5. The coated abrasive article of claim 1 , wherein a raised feature density is from 20 to 80 raised features per in(3 to 13 raised features per cm).6. The coated abrasive article of claim 1 , wherein an average surface roughness claim 1 , Ra claim 1 , of the opposing surface is from 0 to 100 microns.7. The coated abrasive article of claim 1 , wherein the make coat comprises a urethane having a hardness from 55 to 80 Shore D.8. The coated abrasive article of wherein a size coat is applied over the abrasive layer claim 7 , the size coat comprising an acrylic having a glass transition temperature claim 7 , Tg claim 7 , from 54 to 100 degrees C.9. A polyurethane foam backing comprising a textured surface bearing an array of raised features and ...

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Номер записи: 36
02-01-2014 дата публикации

LAYERED PARTICLE ELECTROSTATIC DEPOSITION PROCESS FOR MAKING A COATED ABRASIVE ARTICLE

Номер: US20140000176A1
Автор: Koethe Brian G., Moren Louis S., Thurber Ernest L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Disclosed is a method of applying particles to a coated backing. A first layer of particles is created over a second layer of particles on a support surface and the first layer of particles is different in at least one property from the second layer of particles. A coated backing is positioned above the first and second layer of particles. An electrostatic field is applied simultaneously to the first and second layer of particles such that the first layer of particles closer to the coated backing are preferentially attracted to the coated backing first before the second layer of particles. 1. A system comprising:a conveyor belt moving though an electrostatic field;a coater applying a make coat onto a backing;a web path guiding a coated backing through the electrostatic field above the conveyor belt and the make coat on the backing is positioned facing the conveyor belt;a first particle feeder applying a first particle layer over a second particle layer on the conveyor belt;a second particle feeder applying the second particle layer onto the conveyor belt located before the first particle feeder with regard to the conveyer belt's direction of travel; andwherein the conveyor belt moves the first particle layer and the second particle layer though the electrostatic field transferring at least some of the first and second particles to the coated backing from the conveyor belt.2. The system of wherein the first particle layer is different in at least one property from the second particle layer.3. The method of wherein the first particle layer comprises a first average size and the second particle layer comprises a second average size and a ratio of the first average size divided by the second average size is between about 1.5 to about 15 creating the difference in at least one property.4. The system of wherein the first particle feeder applies first abrasive particles and the second particle feeder applies second abrasive particles and wherein the first abrasive ...

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Номер записи: 37
09-01-2014 дата публикации

HIGH ADHESION RESIN-MINERAL SYSTEMS

Номер: US20140007514A1
Автор: Manning James J., Rice William C.
Принадлежит:

A coated abrasive product that includes a polymer binder comprising a co-polyester having a bisphenol moiety in the backbone of the co-polyester. The coated abrasive product is capable of finishing coated surfaces and repairing defects in coated surfaces, including surfaces coated with automotive primers, paints, clear coats, and combinations thereof. 1. An abrasive product comprising:abrasive particulate material; anda polymer binder comprising a co-polyester having a bisphenol moiety in the backbone of the co-polyester,wherein the abrasive particulate material is dispersed within the polymer binder.2. (canceled)3. (canceled)4. (canceled)5. The abrasive product of claim 1 , wherein the co-polyester comprises a single co-polyester.6. The abrasive product of claim 1 , wherein the co-polyester comprises a mixture of co-polyesters.7. The abrasive product of claim 1 , wherein the co-polyester comprises at least a single co-polyester having a bisphenol moiety in its backbone.8. The abrasive product of claim 1 , wherein the co-polyester comprises a plurality of co-polyesters that each have a bisphenol moiety in their backbones.9. The abrasive product of claim 1 , further comprising a polymeric moiety that is cross-linked into the polymeric binder claim 1 , wherein the polymeric moiety is selected from the group consisting of: bisphenol-A; an epoxy; a phenol formaldehyde; a blocked isocyanate; a urea formaldehyde; a novolac; a resole; a resorcinol-formaldehyde; a UV curable hybrid acrylic epoxy composition; and any combinations thereof.10. The abrasive product of claim 9 , wherein the polymeric moiety that is cross-linked into the polymeric binder comprises about 0.5 wt % to about 50 wt % of the total weight of the polymeric binder.11. The abrasive product of claim 1 , wherein the bisphenol moiety is one of the group consisting ofBisphenol-A (2,2-Bis(4-hydroxyphenyl)propane),Bisphenol AP (1,1-Bis(4-hydroxyphenyl)-1-phenyl-ethane),Bisphenol-AF (2,2-Bis(4-hydroxyphenyl) ...

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Номер записи: 38
09-01-2014 дата публикации

ABRASIVE ARTICLE AND METHOD OF FORMING

Номер: US20140011434A1
Автор: Khaund Arup K., Pearlman John, Puzemis Mary J., Rehrig Paul W., Tian Yinggang
Принадлежит:

An abrasive article includes a substrate comprising an elongated body, a first type of abrasive particle overlying the substrate, a bonding layer overlying the first type of abrasive particle, and a lubricious material overlying or integrated within the bonding layer. 133-. (canceled)34. An abrasive article comprising:a substrate comprising an elongated body;a first type of abrasive particle overlying the substrate;a bonding layer overlying the first type of abrasive particle; anda lubricious material overlying or integrated within the bonding layer.35. The abrasive article of claim 34 , wherein the lubricious material overlies the substrate.36. The abrasive article of claim 34 , wherein the lubricious material is a continuous layer.37. The abrasive article of claim 34 , wherein the lubricious material is a non-continuous layer.38. The abrasive article of claim 34 , wherein the lubricious material comprises discrete particles of a lubricious material.39. The abrasive article of claim 38 , wherein the discrete particles are contained within the bonding layer.40. The abrasive article of claim 34 , wherein the lubricious material is in direct contact with the bonding layer.41. The abrasive article of claim 34 , wherein the lubricious material is at least partially contained within the coating layer.42. The abrasive article of claim 34 , wherein the lubricious material is contained within a first particle coating overlying the first type of abrasive particle.43. The abrasive article of claim 34 , wherein the lubricious material comprises a material selected from the group consisting of an organic material claim 34 , an inorganic material claim 34 , a natural material claim 34 , a synthetic material claim 34 , and a combination thereof.44. The abrasive article of claim 34 , wherein the lubricious material comprises a fluoropolymer.45. The abrasive article of claim 34 , wherein the lubricious material comprises polytetrafluoroethylene (PTFE).46. The abrasive article of ...

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Номер записи: 39
16-01-2014 дата публикации

Abrasive Article and Method Of Forming

Номер: US20140017984A1
Автор: ARCONA Christopher, Che Wei, Khaund Arup K., Puthanangady Thomas, Ramanath Srinivasan, Rehrig Paul W., Tian Yinggang
Принадлежит:

An abrasive article including a substrate having an elongated body, a tacking layer overlying the substrate, a first type of abrasive particle overlying the tacking layer, a second type of abrasive particle different than the first type of abrasive particles overlying the tacking layer, and a bonding layer overlying at least a portion of one of the first type of abrasive particle and the second type of abrasive particle and the tacking layer. 171-. (canceled)72. An abrasive article comprising:a substrate;a tacking layer overlying the substrate;a first type of abrasive particle overlying the tacking layer;a second type of abrasive particle different than the first type of abrasive particles overlying the tacking layer; anda bonding layer overlying at least a portion of one of the first type of abrasive particle and the second type of abrasive particle and the tacking layer.73. The abrasive article of claim 72 , wherein the substrate comprises an elongated body having an aspect ratio of length:width of at least about 10000:1.74. The abrasive article of claim 72 , wherein the substrate comprises high strength steel wire and wherein the substrate comprises a break strength of at least about 3 GPa.75. The abrasive article of claim 72 , further comprising a barrier layer disposed between the peripheral surface of the substrate and the tacking layer.76. The abrasive article of claim 75 , wherein the barrier layer comprises an average thickness of not greater than about 10 microns.77. The abrasive article of claim 72 , wherein the tacking layer is in direct contact with a surface of the substrate.78. The abrasive article of claim 72 , wherein the tacking layer comprises a metal selected from the group of metals consisting of lead claim 72 , silver claim 72 , copper claim 72 , zinc claim 72 , tin claim 72 , indium claim 72 , titanium claim 72 , molybdenum claim 72 , chromium claim 72 , iron claim 72 , manganese claim 72 , cobalt claim 72 , niobium claim 72 , tantalum claim ...

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Номер записи: 40
30-01-2014 дата публикации

ABRASIVE FILM FABRICATION METHOD AND ABRASIVE FILM

Номер: US20140030962A1
Автор: ISHII Yu, ITO Kenya, Kawasaki Hiroyuki, NAKANISHI Masayuki
Принадлежит: EBARA CORPORATION

A method for fabricating an abrasive firm includes preparing a base film, coating the base film with a first paint which contains no abrasive grain but contains a binder resin, and drying the paint to form a first layer. The method further includes coating the first layer with a second paint which contains the abrasive grains and the binder resin, and drying the paint to form a second layer. The method further includes heating the first layer and the second layer for imidization. 1. A method for fabricating an abrasive firm , the method comprising:preparing a base film, coating the base film with a first paint which contains no abrasive grain but contains a binder resin, and drying the paint to form a first layer;coating the first layer with a second paint which contains the abrasive grains and the binder resin, and drying the paint to form a second layer; andheating the first layer and the second layer for imidization.2. The method according to claim 1 , whereinthe coating and drying comprises winding the base film on which the first layer and the second layer are formed into a roll with a separator sheet disposed on the second layer, and whereinthe heating comprises imidizing the first layer and the second layer of the wound base film.3. The method according to claim 2 , whereinthe heating is executed by heating the first and second layers in a vacuum baking furnace at temperature of 200° C. or higher and 350° C. or lower for one hour or longer and four hours or shorter.4. The method according to claim 1 , whereinthe base film prepared is formed from polyimide.5. The method according to claim 4 , whereinthe base film prepared is fully imidized.6. The method according to claim 1 , whereinthe binder resin contains polyimide.7. The method according to claim 1 , whereina coating thickness of the first paint after being dried is in a range from a thickness equal to an average grain size of the abrasive grains to a thickness of three times as large as the average grain ...

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Номер записи: 41
06-02-2014 дата публикации

PREPARATION METHOD FOR POROUS PRESSURE SENSITIVE ADHESIVE ARTICLE

Номер: US20140037936A1
Автор: Chang Suk Ky, JEON Jong Rok, Yang Se Woo
Принадлежит: LG CHEM, LTD.

There is provided a preparation method for a porous pressure sensitive adhesive article, a porous pressure sensitive adhesive article, and an abrasive pad. According to an example of the present application, as a porous pressure sensitive adhesive article including a pressure sensitive adhesive layer formed on a porous article, an article having excellent resistance to an external shear strength and to peeling can be provided. Further, according to the above method, the porous article can be attached firmly to a large-area adherent. In an example, the porous article may be an abrasive pad. 1. A preparation method for a porous pressure sensitive adhesive article , comprising:forming a hot melt adhesive layer on an adhered surface on which pores are formed; andforming a pressure sensitive adhesive layer on the hot melt adhesive layer.2. The preparation method of claim 1 , wherein a ratio of an area where the pores are formed on the adhered surface is 5% or more with respect to the whole adhered surface area.3. The preparation method of claim 1 , wherein the adhered surface is a surface of an abrasive pad claim 1 , a carbon electrode claim 1 , a polymer film claim 1 , a polymer sheet claim 1 , porous ceramic claim 1 , or metal.4. The preparation method of claim 1 , wherein the hot melt adhesive layer is formed by using a urethane hot melt adhesive agent claim 1 , a polyamide hot melt adhesive agent claim 1 , a polyester hot melt adhesive agent claim 1 , a polyolefin hot melt adhesive agent claim 1 , a polycaprolactame hot melt adhesive agent claim 1 , or a silicon hot melt adhesive agent.5. The preparation method of claim 1 , wherein the hot melt adhesive layer is formed by forming a hot melt adhesive agent on the adhered surface and maintaining the hot melt adhesive agent at 60° C. to 100° C. for 30 minutes to 300 minutes.6. The preparation method of claim 1 , wherein the pressure sensitive adhesive layer comprises an acryl polymer having a carboxyl group.7. The ...

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Номер записи: 42
13-02-2014 дата публикации

EXCHANGEABLE ABRASIVE MEANS FOR AN ABRASION APPLIANCE HAVING A SUCTION EXTRACTION ARRANGEMENT

Номер: US20140045413A1
Автор: Breitenmoser Josef, Fritsch Stephan
Принадлежит: ROBERT BOSCH GMBH

An exchangeable abrasive mechanism or disc for use on abrasive-mechanism carriers having suction holes includes a plurality of through openings that each have a centroid. The through openings are differentiated into three groups that differ in the radial disposition of the centroids. A first group comprises at least one, but not more than four, through openings of a first cross section. At least two of the through openings of the first group are disposed on a first circumcircle diameter that is substantially identical to one of the hole-circle diameters such that, when the abrasive mechanism is correctly disposed on an abrasive-mechanism carrier, they are in direct alignment with and can overlap, two corresponding suction holes. A second group of through openings of a second, preferably smaller, cross section, comprises at least four through openings that are disposed on a second circumcircle diameter that differs from the first circumcircle diameter. 1. An exchangeable abrasive mechanism for use on an abrasive-mechanism carrier of an abrasion appliance that has suction holes , the abrasive-mechanism carrier having either five or eight circular suction holes that each have substantially the same diameter and are disposed either on a first , larger hole-circle diameter or a second , smaller hole-circle diameter on the abrasive-mechanism carrier , the abrasive mechanism comprising:a body; anda plurality of through openings formed in the body, each through opening having a cross-sectional area that defines a centroid,wherein the plurality of through openings are configured to be differentiated into three groups of through openings, the groups differing from each other in the radial disposition of the centroids of the respective through openings,wherein a first group of through openings comprises at least one, but not more than four, through openings of a first cross section,wherein at least two of the through openings of the first group are disposed on a first ...

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Номер записи: 43
27-02-2014 дата публикации

RESIN BONDED GRINDING WHEEL

Номер: US20140057534A1
Автор: HAJDUK Janusz, McArdle James L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A resin bonded grinding wheel suitable for grinding polycrystalline diamond compacts is disclosed. The resin bonded grinding wheel uses a high concentration of diamonds based on a volume percent along with a mixture of hard and soft filler particles to effectively grind the polycrystalline diamond compacts while eliminating or reducing the need to continuously dress the outer surface of the resin bonded grinding wheel. 1. A method of grinding comprising:contacting a polycrystalline diamond compact with a grinding wheel;the grinding wheel comprising diamonds, a resin binder, and a mixture of hard filler particles and soft filler particles; andwherein the diamonds comprise a diamond concentration from 175 to 225 based on volume, the resin binder comprises 30 percent to 40 percent based on volume, a ratio of hard filler particles to soft filler particles in the mixture is from 85:15 to 15:85, and the mixture of hard filler particles and soft filler particles comprises 5 percent to 30 percent based on volume.2. The method of wherein the ratio of hard filler particles to soft filler particles in the mixture is from 70:30 to 30:70.3. The method of wherein the diamonds comprise metal bond diamonds.4. The method of wherein the hard filler particles comprise ceramic alpha alumina and the soft filler particles comprise petroleum coke.5. An abrasive article comprising:a grinding wheel, the grinding wheel comprising diamonds, a resin binder, and a mixture of hard filler particles and soft filler particles; andwherein the diamonds comprise a diamond concentration from 175 to 225 based on volume, the resin binder comprises 30 percent to 40 percent based on volume, a ratio of hard filler particles to soft filler particles in the mixture is from 85:15 to 15:85, and the mixture of hard filler particles and soft filler particles comprises 5 percent to 30 percent based on volume.6. The abrasive article of wherein the ratio of hard filler particles to soft filler particles in the ...

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Номер записи: 44
20-03-2014 дата публикации

Abrasive flap disc

Номер: US20140080392A1
Автор: Gerd Eisenblaetter
Принадлежит: PPR GmbH

An abrasive flap disc having improved properties with respect to production and grinding behavior combines an abrasive grit having a special grit mixture consisting of 25% to 75% (high-performance ceramic) zirconium dioxide and of 25% to 75% aluminum oxide with a number of abrasive lamellae per abrasive flap disc in the range between 30 and 46.

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Номер записи: 45
20-03-2014 дата публикации

NONWOVEN ABRASIVE ARTICLE CONTAINING ELASTOMER BOUND AGGLOMERATES OF SHAPED ABRASIVE GRAIN

Номер: US20140080393A1
Автор: Ludwig Bret W.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A nonwoven abrasive article formed from a nonwoven web and agglomerates comprising formed ceramic abrasive particles bound together by a first flexible binder, and a second binder binding the agglomerates to the nonwoven fiber web. 1. A nonwoven abrasive article comprising:a nonwoven web;agglomerates comprising formed ceramic abrasive particles bound together by a first flexible binder; anda second binder binding the agglomerates to the nonwoven fiber web.2. The nonwoven abrasive article of wherein the formed ceramic particles comprise shaped ceramic abrasive particles comprising triangular plates.3. The nonwoven abrasive article of wherein the first flexible binder comprises a polyurethane and the second binder comprises a polyurethane.4. The nonwoven abrasive article of wherein the first flexible binder comprises a polyurethane and the second binder comprises a phenolic.5. The nonwoven abrasive article of wherein a modulus of elasticity of the first flexible binder is less than 28 claim 1 ,000 psi.6. The nonwoven abrasive article of wherein a modulus of elasticity of the first flexible binder is less than 23 claim 1 ,000 psi.7. The nonwoven abrasive article of wherein the agglomerates comprise filler particles having an average particles size less than that of the formed ceramic abrasive particles and the filler particles comprise from 5% to 40% by weight of the total particles in the agglomerates.8. The nonwoven abrasive article of where the agglomerates have a size comprising a maximum diameter claim 1 , if generally spherical claim 1 , or a maximum side edge length if non-spherical from 1.8 to 3 mm.9. The nonwoven abrasive article of wherein a ratio of the formed ceramic abrasive particle size divided by the agglomerate size is 0.0033 to 0.5.10. The nonwoven abrasive article of wherein the agglomerates comprise filler particles and wherein the formed ceramic abrasive particle content is from 75 wt. % to 96 wt. % claim 1 , the first flexible binder content is ...

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Номер записи: 46
01-01-2015 дата публикации

METHOD FOR FORMING AN ABRASIVE LAPPING PLATE

Номер: US20150000202A1
Автор: Baurceanu Mihaela Ruxandra, Hoehn Joel William, Moudry Raymond Leroy
Принадлежит:

A method of forming a lapping plate. The method includes providing a lapping plate having a surface, spraying an adhesive onto the surface, spraying a slurry of abrasive particles and solvent onto the adhesive, and curing the adhesive to form an abrasive coating on the lapping plate. The adhesive may be, for example, epoxy, and the abrasive particles may be, for example, diamonds. 1. A method of forming a lapping plate , comprising:(a) providing a lapping plate having a surface;(b) spraying an adhesive onto the surface;(c) spraying a slurry of abrasive particles and solvent onto the adhesive; and(d) curing the adhesive to form an abrasive coating on the lapping plate.2. The method of wherein spraying the slurry comprises spraying a slurry of diamond particles and alcohol.3. The method of wherein spraying the slurry comprises spraying a slurry of diamond particles having an average particle size in the range of 0.1 to 5 micrometers.4. The method of wherein curing the adhesive to form an abrasive coating comprises curing the adhesive to form an abrasive coating with the abrasive particles protruding from the adhesive at least 35% of their height.5. The method of wherein curing the adhesive to form an abrasive coating comprises curing the adhesive to form an abrasive coating having a thickness of no more than 2 micrometers.6. The method of wherein spraying an adhesive onto the surface comprises spraying an epoxy adhesive onto the surface.7. The method of wherein spraying an epoxy adhesive comprises spraying a first epoxide part and a second hardener part.8. The method of wherein providing a lapping plate having a surface comprises providing a lapping plate having a surface with recessed portions.9. A method of forming a lapping plate claim 1 , comprising:(a) providing a lapping plate having a surface;(b) spraying a first part of an epoxy resin onto the surface;(c) spraying a second part of the epoxy resin onto the surface;(d) spraying a slurry of abrasive particles and ...

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Номер записи: 47
01-01-2015 дата публикации

ABRASIVE ARTICLE

Номер: US20150000206A1
Автор: CICHOWLAS Tyler B., CSILLAG Frank J., DHAMI Davinder S., JR. Lawrence J., Klett Michael W., LAVALLEE
Принадлежит:

An abrasive article has an abrasive portion with an organic bond and abrasive particles. The abrasive article has a non-abrasive portion (NAP) mounted to the abrasive portion. The NAP includes molding compound (MC) having chopped strand fibers (CSF). The CSF can be coated with a thermoplastic coating having a loss on ignition (LOI) of at least about 2.4 wt %, and the NAP having no abrasive particles. The NAP can include an MC having no abrasive particles with a MOHS scale hardness of at least about 9. The NAP may include CSF coated with a primary coating and a secondary coating on the primary coating. The NAP may have an outer diameter that is at least half of but not greater than an outer diameter of the abrasive article. 1. An abrasive article , comprising:an abrasive portion comprising an organic bond and abrasive particles; anda non-abrasive portion (NAP) coupled to the abrasive portion, the NAP comprising molding compound (MC) having no abrasive particles with a MOHS scale hardness greater than about 9.2. The abrasive article of claim 1 , wherein the NAP extends from a peripheral center of the wheel and has a diameter of not less than 30% of a diameter of the abrasive portion.3. The abrasive article of claim 1 , wherein the NAP has an axial thickness of not less than about 30% of an overall axial thickness of the abrasive article.4. The abrasive article of claim 1 , wherein the NAP comprises a core and a back layer.5. The abrasive article of claim 1 , wherein the MC comprises a thermosetting phenolic material with a room temperature viscosity of 1 to 2 million pascal-sec claim 1 , and 0.05 to 0.2 pascal-sec at 100° C. claim 1 , and subsequently cures reaching a maximum viscosity above 125° C.6. The abrasive article of claim 1 , wherein the NAP comprises at least one reinforcement comprising a continuous fiber mat claim 1 , needled fiber mat claim 1 , continuous glass web claim 1 , chopped strand glass fibers (CSF) claim 1 , chopped carbon fibers claim 1 , ...

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Номер записи: 48
07-01-2016 дата публикации

METHOD TO PROVIDE AN ABRASIVE PRODUCT AND ABRASIVE PRODUCTS THEREOF

Номер: US20160001422A1
Автор: HEDE Hans, Höglund Göran, KASS Markus, MEANA-ESTEBAN Beatriz, SUNDELL Mats
Принадлежит:

The invention relates to obtaining an abrasive product comprising a backing layer and an abrasive layer, wherein the backing layer comprises propylene homopolymer or copolymer. 130-. (canceled)31. A flexible abrasive product comprising an abrasive layer adjoined to one side of a backing layer , said backing layer comprising at least two functional layers adjoined by co-extrusion , wherein the backing layer comprises a substantially symmetrical bending stiffness in the range of 50 to 300 Nm in both machine and transverse direction.32. The abrasive product according to claim 31 , wherein the polypropylene is a polypropylene homopolymer claim 31 , a random copolymer of propylene and ethylene or a propylene and an alkene claim 31 , a block copolymer of propylene and ethylene or alternatively propylene and an alkene.33. The abrasive product according to claim 31 , wherein the backing layer comprises one or more functional layers.34. The abrasive product according to claim 31 , having a functional layer comprising a copolymer of ethylene comprising carboxyl functionality.35. The abrasive product according to claim 31 , having a functional layer comprising adhesion promoting compound selected from the group consisting of high density ethylene copolymer claim 31 , low density ethylene copolymer claim 31 , ethylene-butyl acrylate copolymer claim 31 , ethylene vinyl acetate copolymer claim 31 , ethylene methyl acrylate copolymer claim 31 , ethylene butyl acrylate copolymer claim 31 , 2-ethyl hexyl acrylate copolymer claim 31 , ethylene acrylic ester terpolymer where the acrylic ester type is a methyl claim 31 , ethyl or butyl acrylate claim 31 , ethylene vinyl acetate terpolymer where the acrylic ester type is a methyl claim 31 , ethyl or butyl acrylate.36. The abrasive product according to claim 35 , where the adhesion promoting compound is selected from the group consisting of acid copolymer claim 35 , sodium ionomer claim 35 , zinc ionomer claim 35 , or other metal ...

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Номер записи: 49
07-01-2016 дата публикации

METHOD TO PROVIDE AN ABRASIVE PRODUCT SURFACE AND ABRASIVE PRODUCTS THEREOF

Номер: US20160001423A1
Автор: ESTEBAN Beatriz, HEDE Hans, Höglund Göran, KASS Markus, SUNDELL Mats
Принадлежит:

The invention relates to obtaining an abrasive product comprising a surface with multiple abrasive zones supported by a backing layer. The abrasive zone are surrounded by interconnected channel portions comprising first channel portions with a first transverse dimension td and second channel portions with a second transverse dimension td larger than the first transverse dimension td 1. A flexible abrasive product comprising a surface with multiple abrasive zones supported by a backing layer , each abrasive zone surrounded by interconnected channel portions having substantially constant transverse dimensions along the channel portion lengths , wherein the transverse dimension is width by height , the channel portions comprising different widths such that the channel portions comprise first channel portions with a substantially constant first channel width and second channel portions with a substantially constant second channel width.2. The abrasive product according to claim 1 , comprising more than two channel portion levels increasing in transverse dimension.3. The abrasive product according to claim 1 , wherein the transverse dimension is substantially constant throughout the channel portion.4. The abrasive product according to claim 1 , wherein the channel portion length refers to the shortest surface distance between two branching points or intersections of a channel between two abrasive zones.5. The abrasive product according to claim 1 , wherein the backing layer is extruded claim 1 , die cast or injection moulded and comprises first channel portions with a first transverse dimension arranged to improve the abrasive product flexibility.6. The abrasive product according to claim 1 , wherein second channel portions comprise curvature to avoid linear interference.7. The abrasive product according to claim 1 , wherein the second channel portions comprise a maximum linear length of less than 2.5 times an oscillation amplitude of an abrasive apparatus compatible ...

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Номер записи: 50
04-01-2018 дата публикации

METHODS AND TOOL FOR MAINTENANCE OF HARD SURFACES, AND A METHOD FOR MANUFACTURING SUCH A TOOL

Номер: US20180001433A1
Автор: THYSELL Hakan
Принадлежит: HTC Sweden AB

A method is disclosed for treating or maintaining a hard surface comprising a stone or stone-like material, the method comprising treatment of the surface with a flexible pad, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard surface, wherein the abrasive particles comprise diamond particles, and the treatment is performed in the absence of an effective amount of crystallization agent on the contact surface. The treatment is performed on a substantially regular basis, such as daily, weekly or monthly, and the treatment is performed using a pad comprising an open, lofty, three dimensional non-woven webs of fibers. A tool for use in the method is also provided, as well as a floor-surfacing machine comprising such a tool and a method for manufacturing such a tool. Furthermore, methods for treating or maintaining hard, smooth surfaces such as wood, polymer material, lacquer, linoleum, gelcoat, glass and automotive enamel are disclosed. 1. (canceled)2. A method for maintaining a hard , smooth floor surface comprising a polymer material , the method comprising:treating the hard, smooth floor surface with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard, smooth floor surface,wherein the abrasive particles comprise diamond particles of an average diameter of 0.1 to 30 μm, preferably 0.1 to 15 μm or 3 to 6 μm, andwherein treating the hard, smooth floor surface is performed using said pad having:abrasive particles bonded thereto only in a vicinity of the contact surface,the fibers of the flexible pad are bonded to each other by a primary binder and/or via melt-bonding, and have the abrasive particles bonded thereto by a secondary binder,the abrasive particles are present throughout the secondary binder,a first portion of the flexible pad has the abrasive particles present in a ...

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Номер записи: 51
04-01-2018 дата публикации

COATED ABRASIVE ARTICLES AND METHODS FOR FORMING SAME

Номер: US20180001442A1
Автор: Bauer Ralph, Czerepinski Jennifer H., EVERTS Darrell K., Yener Doruk O.
Принадлежит:

A coated abrasive article having a substrate, a bond material overlying the substrate, and a layer of abrasive particles contained within the bond material, the abrasive particles comprising nanocrystalline alumina. 1. A coated abrasive article comprising:a substrate;a bond material overlying the substrate; anda layer of abrasive particles contained within the bond material, the abrasive particles comprising nanocrystalline alumina.2. The coated abrasive article of claim 1 , wherein the abrasive particles comprise nanocrystalline alumina having an average crystallite size of at least 0.05 microns and not greater than 0.14 microns.3. The coated abrasive article of claim 1 , wherein the nanocrystalline alumina comprises at least about 51 wt % alumina and not greater than about 99 wt % alumina for the total weight of the particles.4. The coated abrasive article of claim 1 , wherein the nanocrystalline alumina comprises at least one additive selected from the group consisting of a transition metal element claim 1 , a rare-earth element claim 1 , an alkali metal element claim 1 , an alkaline earth metal element claim 1 , silicon claim 1 , and a combination thereof.5. The coated abrasive article of claim 4 , wherein the nanocrystalline alumina comprises a total content of additive of at least 1 wt % and not greater than about 12 wt % for a total weight of the nanocrystalline alumina particles.6. The coated abrasive article of claim 4 , wherein the additive includes magnesium oxide (MgO).7. The coated abrasive article of claim 6 , wherein the nanocrystalline alumina comprises at least about 0.4 wt % MgO and not greater than about 5 wt % MgO for a total weight of the nanocrystalline alumina.8. The coated abrasive article of claim 6 , wherein the additive includes zirconium oxide (ZrO).9. The coated abrasive article of claim 8 , wherein the nanocrystalline alumina comprises at least about 0.1 wt % ZrOand not greater than about 8 wt % ZrOfor a total weight of the ...

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Номер записи: 52
02-01-2020 дата публикации

ABRASIVE ARTICLE HAVING A CORE INCLUDING A COMPOSITE MATERIAL

Номер: US20200001431A1
Автор: Gollapudi Srikant, Saha Naresh, Sathyanarayanaiah Adiseshaiah K.
Принадлежит:

An abrasive article including a bonded abrasive body coupled to a core, the core includes a composite material including an organic material and a metallic material, and the composite material includes at least a first filler that can include nitrides, carbides, borides, oxides, silicates, or a combination thereof. 1. An abrasive article comprising: a bonded abrasive body coupled to a core , wherein the core comprises a composite material including an organic material and a metallic material , and wherein the core comprises a flexural strength of at least 60 MPa and a dampening factor of at least 0.007.2. The abrasive article of claim 1 , wherein the composite material includes at least a first filler.3. The abrasive article of claim 1 , wherein the core is essentially free of a glass material.4. The abrasive article of claim 1 , wherein the core is essentially free of glass fibers.5. The abrasive article of claim 1 , wherein the organic material comprises a polymer.6. The abrasive article of claim 1 , wherein the organic material comprises a resin.7. The abrasive article of claim 1 , wherein the organic material comprises phenolic resin.8. The abrasive article of claim 1 , wherein the organic material consists essentially of phenolic resin.9. The abrasive article of claim 1 , wherein the core includes a majority content of the composite material.10. The abrasive article of claim 1 , wherein the core comprises at least 60 wt % of the composite material for a total weight of the core.11. The abrasive article of claim 1 , wherein the core consists essentially of the composite material.12. The abrasive article of claim 1 , wherein the core comprises a first portion including the composite material and a second portion having a second material different than the composite material.13. The abrasive article of claim 1 , wherein the first portion and second portion are different in at least one parameter selected from the group consisting of size claim 1 , shape claim 1 , ...

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Номер записи: 53
03-01-2019 дата публикации

ABRASIVE ARTICLE

Номер: US20190001467A1
Автор: Graham Paul D., Hill Philip S., Meuler Adam J., Nettleship David A., Schmidt Daniel J., Yang Yugeun P.
Принадлежит:

An abrasive article is provided which comprises a plurality of layers in the following order: a backing; an abrasive layer; a primer layer comprising clay particles, wherein the clay particles are agglomerated and form a layer; and a supersize coat comprising a metal salt of a long-chain fatty acid. The addition of the aforementioned primer layer can significantly reduce loading of swarf and improve both the cut and expected lifetime of the abrasive article. 1. An abrasive article comprising a plurality of layers in the following order:a backing;an abrasive layer;a primer layer comprising clay particles, wherein the clay particles are agglomerated and form a layer; anda supersize coat comprising a metal salt of a long-chain fatty acid.2. The abrasive article of claim 1 , wherein the abrasive layer comprises:a make coat comprising a first polymeric resin, and abrasive particles at least partially embedded in the first polymeric resin; anda size coat disposed on the make coat and comprising a second polymeric resin.3. The abrasive article of claim 1 , wherein the abrasive layer comprises a plurality of abrasive composites that are precisely shaped.4. The abrasive article of claim 1 , wherein the clay particles comprise a layered silicate.5. The abrasive article of claim 1 , wherein the clay particles have a median particle size of from 0.01 micrometers to 100 micrometers.6. The abrasive article of claim 1 , wherein the clay particles have a median aspect ratio of from 10 to 10 claim 1 ,000.7. The abrasive article of claim 1 , wherein the primer layer further comprises silica nanoparticles.8. The abrasive article of claim 7 , wherein the silica nanoparticles have a median particle size of from 1 nanometer to 200 nanometers.9. The abrasive article of claim 7 , wherein the silica nanoparticles have a D/Dparticle size ratio of from 1.1 to 5.10. The abrasive article of claim 1 , wherein the metal salt of a long-chain fatty acid comprises a stearate and wherein the stearate ...

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Номер записи: 54
01-01-2015 дата публикации

COATED ABRASIVE ARTICLE BASED ON A SUNFLOWER PATTERN

Номер: US20150004889A1
Автор: Seth Anuj
Принадлежит:

An abrasive article having a plurality of abrasive areas arranged in a non-uniform distribution pattern, wherein the pattern is spiral or phyllotactic, such as a spiral lattice, and in particular those patterns described by the Vogel model, such as a sunflower pattern. 1. An abrasive article comprising:a coated abrasive having a plurality of abrasive areas arranged in a pattern,wherein the pattern has a controlled non-uniform distribution, andwherein the pattern is at least one of a radial pattern, a spiral pattern, a phyllotactic pattern, an asymmetric pattern, or combinations thereof.2. The abrasive article of claim 1 , wherein the pattern is a spiral pattern.3. The abrasive article of claim 2 , wherein the spiral pattern is one of an Archimedean spiral claim 2 , a Euler spiral claim 2 , a Fermat's spiral claim 2 , a hyperbolic spiral claim 2 , a lituus claim 2 , a logarithmic spiral claim 2 , a Fibonacci spiral claim 2 , a golden spiral claim 2 , or combinations thereof.4. The abrasive article of claim 3 , wherein the pattern has a controlled asymmetry.5. The abrasive article of claim 4 , wherein the controlled asymmetry is an at least partial rotational asymmetry about the center of the pattern.6. The abrasive article of claim 5 , wherein the rotational asymmetry extends to at least 51% of the abrasive areas of the pattern.7. (canceled)8. (canceled)9. The abrasive article of claim 1 , wherein the pattern is a phyllotactic pattern.10. The abrasive article of claim 9 , wherein the pattern is a spiral phyllotactic pattern.11. The abrasive article of claim 10 , wherein the pattern has a number of clockwise spirals and a number of counter-clock wise spirals claim 10 , wherein the number of clockwise spirals and the number of counterclockwise spirals are Fibonacci numbers or multiples of Fibonacci numbers.12. (canceled)13. The abrasive article of claim 11 , wherein the number of clockwise spirals and the number of counterclockwise spirals are in a ratio that converges ...

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Номер записи: 55
01-01-2015 дата публикации

NICKEL COATED DIAMOND PARTICLES AND METHOD OF MAKING SAID PARTICLES

Номер: US20150004890A1
Автор: Haerle Andrew G., KRSTIC Zoran, MECCA William, SHAFFER Brian C., TUMAVITCH Nicholas J.
Принадлежит:

A method of evenly coating small abrasive particles, specifically a method of coating diamond particles≦10 μm with nickel, and an abrasive article containing the coated abrasive particles, for example, a fixed diamond wire. The method includes applying ultrasonic energy to the plating bath and adjusting the power of the ultrasonic energy that a non-agglomeration factor (NAF) of the batch of abrasive particle is at least about 0.9, the non-agglomeration factor defined as a ratio (D50/D50), wherein D50represents the median particle size of the coated abrasive particles and D50represents the median particle size of the abrasive particles prior to coating. 1. A method for forming a batch of coated abrasive particles comprisingproviding a dispersion of abrasive particles in a bath, wherein an average particle size of the abrasive particles is ≦10 μm;coating the abrasive particles in the bath with a coating material;{'sub': sa', 'b', 'b', 'sa, 'applying ultrasonic energy to the bath and adjusting a power of the ultrasonic energy to form a batch of coated abrasive particles having a non-agglomeration factor (NAF) of at least about 0.90, the non-agglomeration factor defined as a ratio (D50/D50), wherein D50represents the median particle size of the batch of coated abrasive particles and D50represents the median particle size of the abrasive particles prior to coating.'}2. The method of claim 1 , wherein the abrasive particles comprise a material selected from the group consisting of diamond claim 1 , cubic boron nitride claim 1 , silicon carbide claim 1 , boron carbide claim 1 , alumina claim 1 , silicon nitride claim 1 , tungsten carbide claim 1 , zirconia or a combination thereof.3. The method of claim 2 , wherein the abrasive particles are diamond particles.4. The method of claim 1 , wherein the coating comprises a material selected from the group consisting of nickel claim 1 , titanium claim 1 , copper claim 1 , zinc claim 1 , chrome claim 1 , bronze claim 1 , and ...

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Номер записи: 56
14-01-2016 дата публикации

A METHOD TO PROVIDE AN ABRASIVE PRODUCT SURFACE AND ABRASIVE PRODUCTS THEREOF

Номер: US20160008958A1
Автор: ESTEBAN Beatriz, HEDE Hans, Höglund Göran, KASS Markus, SUNDELL Mats
Принадлежит:

The invention relates to obtaining an abrasive product comprising a surface with multiple abrasive zones supported by a backing layer. The abrasive zone are surrounded by interconnected channel portions comprising first channel portions with a first transverse dimension td and second channel portions with a second transverse dimension td larger than the first transverse dimension td 140-. (canceled)41. A flexible abrasive product surface comprising repeating units of abrasive zones surrounded by channel portions , wherein repeating unit boundaries opposite to each other have congruent curvature to form a complementary pair to fit the repeating units together in a pre-emptying manner and the channel portions comprise first channel portions with a substantially constant first channel width and second channel portions with a substantially constant second channel width along the channel portion length.42. The abrasive product surface according to claim 41 , wherein multiple repeating units are arranged in a pre-emptying manner for filling the whole surface of the abrasive product.43. The abrasive product surface according to claim 41 , wherein the repeating units comprise self-similar or a congruent shapes.44. The abrasive product surface according to claim 41 , wherein the area of an abrasive zone is in the range of 0.5 to 75 mm claim 41 , and wherein the total area of the channel portions is in the range of 20 to 50% of the total area of the abrasive product.45. The abrasive product surface according to claim 41 , wherein the abrasive zones have congruent shapes.46. The abrasive product surface according to claim 41 , wherein an abrasive layer adjoined to the backing layer comprises the first channel portions claim 41 , the second channel portions and multiple abrasive zones.47. The abrasive product surface according to claim 41 , wherein recessed areas matching the second channel portions are provided on the backing layer.48. The abrasive product surface according to ...

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Номер записи: 57
27-01-2022 дата публикации

SYNTHETIC GRINDSTONE

Номер: US20220023997A1
Автор: KYOSHIMA Kai
Принадлежит: TOKYO DIAMOND TOOLS MFG. CO., LTD.

A synthetic grindstone () for chemo-mechanical grinding a wafer W, comprising: an abrasive grain () having a chemo-mechanical grinding action on the wafer W and having a particle diameter of less than 5 μm; a spherical filler () formed of a material as hard as or softer than the wafer W and having a particle diameter larger than that of the abrasive grain (); and a resin binder () that integrally binds the abrasive grain () and the spherical filler (). 1. A synthetic grindstone for chemo-mechanical grinding a work material , comprising:an abrasive grain having a chemo-mechanical grinding action on the work material and having a particle diameter of less than 5 μm;a spherical filler formed of a material as hard as or softer than the work material or an oxide thereof and having a particle diameter larger than that of the abrasive grain; anda resin binder that integrally binds the abrasive grain and the spherical filler.2. The synthetic grindstone according to claim 1 , wherein the abrasive grain is a material as hard as or softer than the work material or an oxide thereof.3. The synthetic grindstone according to claim 1 , whereina volume ratio of the abrasive grain is 0.2 to 50%,a volume ratio of the spherical filler is 20 to 60%, anda volume of the resin binder is 3 to 25 vol %.4. The synthetic grindstone according to claim 3 , wherein a volume ratio of the spherical filler is 30 to 60%.5. The synthetic grindstone according to claim 1 , wherein the abrasive grain is any one of silica claim 1 , cerium oxide claim 1 , chromium oxide claim 1 , ferric oxide claim 1 , alumina claim 1 , and silicon carbide claim 1 , or a mixture thereof.6. The synthetic grindstone according to claim 1 , wherein the spherical filler is any one of silica claim 1 , carbon claim 1 , silica gel claim 1 , activated carbon claim 1 , or a mixture thereof.7. The synthetic grindstone according to claim 1 , wherein the resin binder is any one of a thermosetting resin and a thermoplastic resin claim 1 ...

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Номер записи: 58
10-01-2019 дата публикации

UV CURABLE CMP POLISHING PAD AND METHOD OF MANUFACTURE

Номер: US20190009388A1
Автор: BAJAJ Rajeev, ORILALL Mahendra Christopher, Redeker Fred C.
Принадлежит:

A method of fabricating a chemical mechanical polishing pad includes introducing polymer precursors containing acrylate functional groups into a mold, providing abrasive particles and a photo-initiator in the polymer precursors to form a mixture, and while the mixture is contained between a bottom plate and a top cover of the mold, exposing the mixture to ultraviolet radiation through a transparent section of the mold to cause the polymer precursors to form radicals, forming a polymer matrix from the polymer precursor by causing the radicals to cross-link with one another. The polishing layer includes the polymer matrix having the abrasive particles dispersed therein. 1. A method of fabricating a chemical mechanical polishing pad , comprising:introducing into a mold a mixture including a polymer precursor containing an acrylate functional group and a photo-initiator such that the mixture covers a flat bottom plate of the mold; andwhile the mixture is contained between the bottom plate and a flat top cover of the mold, exposing the mixture to ultraviolet radiation through a flat transparent section of flat top cover of the mold such that the photo-initiator creates initial radicals that attack the acrylate functional group to generate acrylate radicals and the acrylate radicals cross-link to form a polymer matrix that provides a polishing layer of the polishing pad.2. The method of claim 1 , wherein the photo-initiator comprises a reactive acrylate monomer.3. The method of claim 2 , wherein the polymer precursor comprises an acrylate oligomer.4. The method of claim 2 , wherein the polymer precursor comprises polyurethane acrylate claim 2 , polyester acrylate or polyether acrylate.5. The method of claim 1 , wherein the photo-initiator has a lower viscosity than the polymer precursor.6. The method of claim 1 , further comprising mixing of the polymer precursor and the photo-initiator in the presence of a gas claim 1 , the mixing performed at sufficient rapidity to ...

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Номер записи: 59
10-01-2019 дата публикации

Abrasive coated disk islands using magnetic font sheet

Номер: US20190009389A1
Автор: Cameron M. Duescher, Wayne O. Duescher
Принадлежит: Individual

Abrasive disk sheet articles having raised islands coated with abrasive have a flexible disk polymer backing. The top flat surfaces of the raised islands are coated with a liquid controlled-thickness slurry mixture of abrasive particles and a polymeric adhesive by use of a magnetic precision-thickness coating-control font sheet having individual open holes that are slightly smaller than the respective raised islands. The magnetic coater font sheet is placed in flat-surfaced contact with the raised island surfaces where each individual font sheet open hole is aligned with a respective island surface. A magnet placed on the non-island surface of the disk polymer backing urges the magnetic coater font sheet into conformal contact with the island surfaces. A squeegee device moved along the font sheet fills and level coats the island tops with a uniform-thickness abrasive slurry mixture. After coating, the font sheet is removed and the abrasive slurry is solidified.

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Номер записи: 60
17-01-2019 дата публикации

BRUSH GRINDING HEAD FOR A GRINDING MACHINE

Номер: US20190015945A1
Автор: ANKERSEN Bent
Принадлежит:

The invention relates to a brush grinding head () for a grinding machine (), comprising an essentially roller-shaped carrier () and grinding lamellae (), wherein the grinding lamellae () are arranged peripherally on the carrier () and are composed at least of, in particular bundled brushes () and an essentially strip-shaped grinding element () which is arranged adjacent thereto. The grinding element () comprises at least one abrasive layer () and an abrasive-free layer () which can be compressed while retaining its shape and is designed in such a way that a grinding fluid (), in particular water, can be stored in it. 113-. (canceled)1412344356678827. Brush grinding head () for a grinding machine () , comprising a , particularly drum-formed , carrier () and grinding lamellae () , wherein the grinding lamellae () are arranged on the circumference of the carrier () and are composed of at least , particularly bundled , brushes () and an adjacently arranged , particularly lamellar , grinding element () , characterized in that the grinding element () comprises at least a layer () of grinding means and a layer () which is free of grinding means , wherein the layer () is compressible while maintaining its form and is constructed in such a way , that a grinding fluid () , particularly water , is storable in it.15165432. Brush grinding head () according to claim 14 , wherein the grinding element () and the brushes () of the grinding lamellae () are each arranged in a common groove ().161791027. Brush grinding head () according to claim 14 , wherein the layer () of grinding means comprises a flexible claim 14 , in particular textile claim 14 , carrier layer () for the grinding means () claim 14 , which is permeable for the grinding fluid () claim 14 , particularly water.17171011. Brush grinding head () according to claim 14 , wherein the layer () of grinding means comprises grinding means () which are chosen from a group consisting of diamond and cubic boron nitride claim 14 , ...

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Номер записи: 61
17-01-2019 дата публикации

ABRASIVE DISC WITH UNIVERSAL HOLE PATTERN

Номер: US20190015949A1
Автор: Goers Brian D.
Принадлежит:

An abrasive disc for use with a sanding tool having a plurality of dust collection holes includes a hole pattern consisting of six openings arranged for substantial alignment with the dust collection holes provided in the sanding tool. 1. A circular abrasive disc adapted for use with a first sanding tool having five dust collection holes and for use with a second sanding tool having eight dust collection holes , the circular abrasive disc defining precisely six openings , the six openings comprising a first circular opening a second enlarged circular opening arranged 180 degrees from the first circular opening , a first pair of elongated openings arranged on opposite sides of the first circular opening , and a second pair of elongated openings having a size greater than the first pair of elongated openings arranged on opposite sides of the enlarged circular opening and between the enlarged circular opening and the first pair of elongated openings , wherein a major axis of a first one of the second pair of elongated openings intersects a major axis of a second one of the second pair of elongated openings at a location adjacent the second enlarged circular opening in a direction opposite the first circular opening.2. The circular abrasive disc of claim 1 , wherein the first circular opening has a size that generally corresponds to a size of a dust collection hole provided in a sanding tool or back-up pad.3. The circular abrasive disc of claim 1 , wherein the first and second circular openings are bisected by an axis about which a hole pattern defined by the six openings is symmetrical.4. The circular abrasive disc of claim 1 , wherein the radius of the semi-circular ends of the elongated openings generally corresponds to the radius of the first circular opening claim 1 , and further wherein the radius of the first circular opening is less than the radius of the second circular opening claim 1 , whereby the first and second circular openings are readily visually ...

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Номер записи: 62
17-01-2019 дата публикации

ABRASIVE ARTICLES AND RELATED METHODS

Номер: US20190015950A1
Автор: Graham Paul D., Hill Philip S., Meuler Adam J., Nettleship David A., Schmidt Daniel J., Yang Yugeun P.
Принадлежит:

Provided are abrasive articles that include a plurality of layers, in the following order: a backing; an abrasive layer; and a supersize coat. The supersize coat contains a metal salt of a long-chain fatty acid and clay particles dispersed therein. Advantageously, the clay particles enhance the optical clarity of the supersize coat, allowing printed abrasive articles to be made with thicker supersize coatings. The addition of clay was also found to improve cut performance of the abrasive article relative to articles in which the clay particles are absent. 1. An abrasive article comprising a plurality of layers , in the following order:a backing;an abrasive layer; anda supersize coat comprising a metal salt of a long-chain fatty acid and having clay particles dispersed therein.2. The abrasive article of claim 1 , wherein the abrasive layer comprises:a make coat comprising a first polymeric resin and a plurality of abrasive particles at least partially embedded in the first polymeric resin; anda size coat disposed on the make coat and comprising a second polymeric resin.3. The abrasive article of claim 1 , wherein the abrasive layer comprises a plurality of abrasive composites that are precisely shaped.4. The abrasive article of claim 3 , wherein the abrasive composites are molded from an abrasive slurry.5. The abrasive article of claim 1 , wherein the clay particles comprise a layered silicate.6. The abrasive article of claim 5 , wherein the layered silicate comprises a montmorillonite.7. The abrasive article of claim 6 , wherein the montmorillonite comprises a sodium montmorillonite claim 6 , calcium montmorillonite claim 6 , or combination thereof8. The abrasive article of claim 1 , wherein the metal salt of a long-chain fatty acid comprises a stearate.9. The abrasive article of claim 8 , wherein the stearate comprises calcium stearate claim 8 , zinc stearate claim 8 , or a combination thereof.10. The abrasive article of claim 1 , wherein the supersize coat further ...

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Номер записи: 63
21-01-2021 дата публикации

ABRASIVE PRODUCTS COMPRISING IMPREGNATED WOVEN FABRIC AND ABRASIVE PARTICLES

Номер: US20210016419A1
Автор: Davies Mark, TYLER Michael, WHITEHEAD Brent, WIXMERTEN Bodo
Принадлежит:

An abrasive product comprising an impregnated woven fabric comprising: a) A first layer of first uncrimped weft multifilaments (-) b) a second layer of second uncrimped weft multifilaments (-); wherein for each of the first uncrimped weft multifilaments (-) there is one corresponding second uncrimped weft multifilament (-), and vice versa, to form successive multifilament pairs () of first and second uncrimped weft multifilaments; c) crimped warp filaments (41-44) having four different weave types d-c4, but each weave type consisting of entwining around first uncrimped weft multifilaments; passing between first and second uncrimped weft multifilaments; entwining around second uncrimped weft multifilaments; and passing again between first and second uncrimped weft multifilaments; d) uncrimped warp filaments () passing between first (-) and second (-) uncrimped weft multifilaments of all multifilament pairs (). The abrasive product furthermore comprises either a first particulate abrasive material () embedded into the first topmost surface () of the first top layer (), or a prefabricated abrasive sheet () comprising a matrix material, a first top sheet surface () and first abrasive particles () embedded into the first top sheet surface (). 1. An abrasive product comprising{'b': '6', 'claim-text': [{'b': 301', '308, 'a) A first layer (A) of first uncrimped weft multifilaments (-) running essentially in parallel to each other and being spaced apart from each other by a distance D;'}, {'b': 309', '316, 'b) a second layer (B) of second uncrimped weft multifilaments (-) running essentially in parallel to each other and being spaced apart from each other by said distance D;'}, {'b': 301', '308', '309', '316', '301', '309', '302', '310', '303', '311', '304', '312', '305', '313', '306', '314', '307', '315', '308', '316, 'wherein for each of the first uncrimped weft multifilaments (-) there is one corresponding second uncrimped weft multifilament (-), and vice versa, to form ...

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Номер записи: 64
17-04-2014 дата публикации

Polishing Pad for Eddy Current End-Point Detection

Номер: US20140102010A1
Автор: Allison William C., Frentzel Richard, Huang Ping, Scott Diane, Simpson Alexander William
Принадлежит:

Polishing pads for polishing semiconductor substrates using eddy current end-point detection are described. Methods of fabricating polishing pads for polishing semiconductor substrates using eddy current end-point detection are also described. 1. A method of fabricating a polishing pad for polishing a semiconductor substrate , the method comprising:forming a molded homogeneous polishing body comprising a polishing surface and a back surface; andforming an end-point detection region disposed in and covalently bonded with the molded homogeneous polishing body, the end-point detection region comprising a material different from the molded homogeneous polishing body, at least a portion of which is recessed relative to the back surface of the molded homogeneous polishing body.2. The method of claim 1 , wherein the end-point detection region is a local area transparency (LAT) region.3. The method of claim 2 , wherein the hardness of the end-point detection region is greater than the hardness of the molded homogeneous polishing body.4. The method of claim 1 , wherein the end-point detection region is an opaque region having a hardness different from the hardness of the molded homogeneous polishing body.5. The method of claim 4 , wherein the hardness of the end-point detection region is greater than the hardness of the molded homogeneous polishing body.6. The method of claim 4 , wherein the hardness of the end-point detection region is less than the hardness of the molded homogeneous polishing body.7. The method of claim 1 , wherein the entire end-point detection region is recessed relative to the back surface of the molded homogeneous polishing body.8. The method of claim 1 , wherein only an inner portion of the end-point detection region is recessed relative to the back surface of the molded homogeneous polishing body.9. The method of claim 1 , wherein the molded homogeneous polishing body comprises a thermoset claim 1 , closed cell polyurethane material.10. The method of ...

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Номер записи: 65
28-01-2016 дата публикации

POLISHING PAD WITH CONCENTRIC OR APPROXIMATELY CONCENTRIC POLYGON GROOVE PATTERN

Номер: US20160023322A1
Автор: Allison William C., Scott Diane, Simpson Alexander William
Принадлежит:

Polishing pads with concentric or approximately concentric polygon groove patterns are described. Methods of fabricating polishing pads with concentric or approximately concentric polygon groove patterns are also described. 1. A polishing pad for polishing a substrate , the polishing pad comprising:a polishing body having a polishing surface and a back surface, the polishing surface having a pattern of grooves comprising a plurality of discrete linear segments orthogonal or approximately orthogonal to radii of the polishing surface.2. The polishing pad of claim 1 , wherein the plurality of discrete linear segments orthogonal or approximately orthogonal to radii of the polishing surface form a portion of a claim 1 , but not a complete claim 1 , concentric or approximately concentric polygon arrangement.3. The polishing pad of claim 2 , wherein the portion of the concentric or approximately concentric polygon arrangement omits one or more inflection points from one or more of the polygons.4. The polishing pad of claim 2 , wherein the portion of the concentric or approximately concentric polygon arrangement omits one or more edges from one or more of the polygons.5. The polishing pad of claim 1 , wherein the pattern of grooves has no radial groove.6. The polishing pad of claim 1 , wherein the pattern of grooves has a radial groove along a radius of the polishing surface claim 1 , but not in contact with the plurality of discrete linear segments.7. A polishing pad for polishing a substrate claim 1 , the polishing pad comprising:a polishing body having a polishing surface and a back surface, the polishing surface having a pattern of grooves comprising nested incomplete polygons having continuity there between.8. The polishing pad of claim 7 , wherein the pattern of grooves has no radial groove.9. The polishing pad of claim 7 , wherein the pattern of grooves has a radial groove along a radius of the polishing surface.10. A polishing pad for polishing a substrate claim 7 , ...

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Номер записи: 66
17-04-2014 дата публикации

ABRASIVE PARTICLES HAVING PARTICULAR SHAPES AND METHODS OF FORMING SUCH PARTICLES

Номер: US20140106126A1
Автор: ARCONA Christopher, Brandes Alan J., Braun Paul, CSILLAG Frank J., Czerepinski Jennifer H., Everts Darrel K., Gaeta Anthony C., Iyengar Sujatha, Kayyar-Mahabala Satyalakshmi, Lafond Gregory, Lior Adam D., Parmar Anil, Rice William C., Seth Anuj, Wijesooriya Sidath S., Yener Doruk O.
Принадлежит:

An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other. 1. An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing , wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.2. The abrasive article of claim 1 , wherein at least about 80% of a total content of the shaped abrasive particles are arranged in a side orientation relative to the backing.3. The abrasive article of claim 1 , wherein each of the plurality of shaped abrasive particles of the first group share at least one of a predetermined rotational orientation claim 1 , a predetermined lateral orientation claim 1 , and a predetermined longitudinal orientation.4. The abrasive article of claim 1 , further comprising a second group comprising a plurality of shaped abrasive particles distinct from the first group and coupled to the backing claim 1 , wherein each of the plurality of shaped abrasive particles of the second group share at least one of a predetermined rotational orientation claim 1 , a predetermined lateral orientation claim 1 , and a predetermined longitudinal orientation.5. The abrasive article of claim 4 , wherein the first group comprises at least one feature different from a feature of the second group claim 4 , wherein the feature is selected from the group of features consisting of average particle size claim 4 , two-dimensional particle shape claim 4 , orientation relative to a grinding direction claim 4 , average lateral space claim 4 , average longitudinal space claim 4 , side orientation claim 4 , inverted orientation claim 4 , flat orientation claim 4 , composition claim 4 , predetermined distribution.6. The abrasive article of claim 4 , wherein the second ...

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Номер записи: 67
10-02-2022 дата публикации

PATTERNED ABRASIVE SUBSTRATE AND METHOD

Номер: US20220040814A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Abrasive articles and associated methods are shown that include abrasive particles arranged in one or more symbols on a backing substrate. Examples include shaped abrasive particles arranged into one or more symbols. Other examples include one or more wear particles with a height less than other abrasive particles, such that when exposed, the wear particles indicate a wear condition of the abrasive article. 1. (canceled)2. (canceled)3. The abrasive article of claim 12 , wherein the one or more symbols includes one or more alphanumeric characters.4. The abrasive article of claim 12 , wherein the one or more symbols includes one or more words.5. The abrasive article of claim 12 , wherein the one or more symbols includes a product type identifier.6. The abrasive article of claim 12 , wherein the one or more symbols includes an abrasive grade identifier.7. The abrasive article of claim 12 , wherein the one or more symbols includes a brand identifier.8. The abrasive article of claim 12 , wherein the backing substrate is a belt.9. The abrasive article of claim 12 , wherein the backing substrate is a disc.10. The abrasive article of claim 12 , wherein at least one of the shaped abrasive particles of the plurality of shaped abrasive particles comprises a first side and a second side separated by a thickness t claim 12 , the first side comprises a first face having a triangular perimeter and the second side comprises a second face having a triangular perimeter claim 12 , wherein the thickness t is equal to or smaller than the length of the shortest side-related dimension of the particle.11. The abrasive article of claim 12 , wherein at least one of the shaped abrasive particles of the plurality of shaped abrasive particles is tetrahedral and comprises four faces joined by six edges terminating at four tips claim 12 , each one of the four faces contacting three of the four faces.12. An abrasive article claim 12 , comprising:a backing substrate; a plurality of shaped abrasive ...

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Номер записи: 68
10-02-2022 дата публикации

IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION

Номер: US20220040815A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Liu Yuyang, Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. A shaped abrasive particle placement tool can include a substrate including an abrasive particle receiving surface defining an x-y plane including an x-axis and a y-axis and a back surface opposite the abrasive particle receiving surface, cavities formed in the substrate, the cavities including one or more sidewalls, the cavities including a width and length at the abrasive article receiving surface, and a depth defined by a distance the first cavities extend from the abrasive article receiving surface towards the back surface in a direction parallel to a z-axis perpendicular to the x-y plane, and respective protrusions between two or more proximate cavities, the respective protrusions extending from the abrasive article receiving surface in a direction parallel to the z-axis and away from the back surface, and shaped abrasive particles situated in the cavities. 1. A shaped abrasive particle placement tool comprising:a substrate including an abrasive particle receiving surface defining an x-y plane including an x-axis and a y-axis and a back surface opposite the abrasive particle receiving surface, cavities formed in the substrate, the cavities including one or more sidewalls, the cavities including a width and length at the abrasive article receiving surface, and a depth defined by a distance the first cavities extend from the abrasive article receiving surface towards the back surface in a direction parallel to a z-axis perpendicular to the x-y plane, and respective protrusions between two or more proximate cavities, the respective protrusions extending from the abrasive article receiving surface in a direction parallel to the z-axis and away from the back surface; andshaped abrasive particles situated in the cavities.2. The shaped abrasive particle placement tool of claim 1 , wherein the respective protrusions comprise a hemispherical shape.3. The ...

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Номер записи: 69
10-02-2022 дата публикации

ABRASIVE ARTICLE MAKER WITH DIFFERENTIAL TOOLING SPEED

Номер: US20220040816A1
Автор: Adefris Negus B., Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Apparatus includes a production tooling having a dispensing surface with a plurality of cavities and formed into an endless belt. An abrasive particle feeder dispenses shaped abrasive particles onto the dispensing surface and into the plurality of cavities. A resin coated backing receives shaped abrasive particles from the cavities of the production tooling at a deposit point. A detecting device detects a pattern transition zone as the production tooling moves in the direction of travel and provides pattern transition zone detection data to one or more controllers to control a speed of the production tooling and/or a speed of the resin coated backing as the detected pattern transition zone passes the deposit point to change a pattern density of the shaped abrasive particles in a portion of the resin coated backing corresponding to the pattern transition zone of the production tooling. 1. A coated abrasive article maker apparatus comprising:a production tooling in the form of an endless belt having a dispensing surface with a plurality of cavities, wherein at least a portion of the plurality of cavities is missing in a pattern transition zone of the production tooling;at least one roller that guides the production tooling through the coated abrasive article maker apparatus, the at least one roller including at least one drive roller for pulling the endless belt in a direction of travel;an abrasive particle feeder positioned adjacent the production tooling so as to dispense shaped abrasive particles onto the dispensing surface and into the plurality of cavities of the production tooling;a resin coated backing guide that guides a resin coated backing through the coated abrasive article maker apparatus in the direction of travel, the resin coated backing positioned to receive shaped abrasive particles from the plurality of cavities of the production tooling at a deposit point;means for detecting the pattern transition zone as the production tooling moves in the ...

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Номер записи: 70
10-02-2022 дата публикации

TOOLING SPLICE ACCOMMODATION FOR ABRASIVE ARTICLE PRODUCTION

Номер: US20220040817A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

A system and method for producing an abrasive article includes a production tool configured to provide shaped abrasive particles to a resin coated backing. A first end and a second end of the production tool are spliced together to form a spliced area. The production tool includes a dispensing surface that includes a plurality of cavities formed between the first end and the second end and configured to receive and hold the shaped abrasive particles. The resin coated backing is configured to receive the shaped abrasive particles from the dispensing surface of the production tool and configured to receive further shaped abrasive particles to fill gaps in the shaped abrasive particles caused by an absence of the plurality of cavities in the spliced area. 1. A method of producing an abrasive article , the method comprising:moving a production tool along a first web path, the production tool having a first end and a second end spliced together forming a spliced area;providing first shaped abrasive particles to a plurality of cavities formed in a dispensing surface of the production tool;moving a resin coated backing along a second web path;dispensing the first shaped abrasive particles from the plurality of cavities to the resin coated backing;dispensing second shaped abrasive particles to the resin coated backing into gaps in the first shaped abrasive particles caused by an absence of the plurality of cavities in the spliced area.2. The method of claims 1 , wherein the second shaped abrasive particles comprise at least one magnetic material claims 1 , and wherein dispensing the second shaped abrasive particles to the resin coated backing into the gaps in the first shaped abrasive particles comprises:dispensing the second shaped abrasive particles to the resin coated backing into the gaps formed in the first shaped abrasive particles on the resin coated backing; andaligning the second shaped abrasive particles within the gaps using a magnetic field.3. The method of ...

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Номер записи: 71
24-01-2019 дата публикации

ABRASIVE ARTICLE AND A PROCESS FOR PREPARATION THEREOF

Номер: US20190022828A1
Автор: Bhattacharya Dhritisunder, Palled Satish V., Soni Samir H., Thakur Raju B.S., Vashistha Deval Y.
Принадлежит:

The present invention relates to abrasive articles, more specifically to coated abrasive article with non-woven backing and a method of their preparation. 2. The article as claimed in claim 1 , wherein the non-woven backing is selected from a group consisting of polymer materials.3. The article as claimed in claim 2 , wherein the polymer material is spun-bonded polypropylene fabric.4. The article as claimed in claim 1 , comprising more than one layer of abrasive slurry deposited over the backing.5. The article as claimed in claim 4 , wherein the mineral particles are coarser in outermost layer of abrasive slurry and gradually decreases to finer particles in layers of abrasive slurry towards backing.6. The article as claimed in claim 1 , wherein the mineral particles are selected from a group consisting of silicon carbide claim 1 , aluminium oxides claim 1 , chromia claim 1 , alumina zirconia claim 1 , diamond claim 1 , iron oxide claim 1 , ceria claim 1 , cubic boron nitride claim 1 , boron carbide claim 1 , garnet and combinations thereof7. The article as claimed in claim 1 , wherein the binder comprises of a resin claim 1 , filler and/or a curing agent.8. The article as claimed in claim 7 , wherein the resin is selected from a group consisting of thermal curable phenolics claim 7 , oil modified alkyds claim 7 , thermal curable epoxies or UV-curable epoxy-acrylate.9. The article as claimed in claim 7 , wherein the filler is selected from a group consisting of clay claim 7 , silica claim 7 , talc claim 7 , calcium carbonate or mixtures thereof.10. The article as claimed in claim 7 , wherein the curing agent is selected from a group consisting of thermal curing agents claim 7 , UV curing agents or combinations thereof.11. A backing for abrasive article comprising non-woven spun-bonded polypropylene fabric impregnated with acrylic emulsion12. The backing as claimed in claim 11 , wherein the acrylic emulsion is selected from a group consisting of SBR latex claim 11 , ...

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Номер записи: 72
10-02-2022 дата публикации

Abrasive articles with varying shaped abrasive particles

Номер: US20220041909A1
Автор: Aaron K. NIENABER, Amelia W. Koenig, Ann M. Hawkins, Joseph B. Eckel, Thomas J. Nelson
Принадлежит: 3M Innovative Properties Co

The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. An abrasive article can include a substrate shaped particles disposed on the substrate, wherein the shaped particles include first shaped abrasive particles and second shaped particles, and wherein a characteristic of the first shaped abrasive particles is different from a corresponding characteristic of the second shaped particles, and at least one binding agent securing the shaped particles to the substrate.

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Номер записи: 73
23-01-2020 дата публикации

ABRASIVE ARTICLE AND METHOD OF USE

Номер: US20200023493A1
Автор: Carter Christopher J., Yale Martin
Принадлежит:

A coated abrasive article () having a flexible backing () and an abrasive coat () attached to the backing () by a tie coat (), wherein the tie coat () is liquid-softenable such that the tie coat () maintains the flexible backing () in a substantially rigid state when the tie coat () is dry and allows the backing () to flex when the tie coat () is in its softened state. 1. A coated abrasive article havinga flexible backing and an abrasive coat attached to the backing by a tie coat,wherein the tie coat is liquid-softenable such that the tie coat maintains the flexible backing in a substantially rigid state when the tie coat is dry and allows the backing to flex when the tie coat is in its softened state.2. The article of wherein the tie coat is a hydrogel.3. The article of wherein the tie coat contains an acrylol morpholine oxide UV-curable monomer.4. The article of wherein the backing is a non-woven web or foam.5. The article of wherein the backing is a thermoplastic web.6. The article of wherein the abrasivecoat comprises a cured abrasive slurry containing a plurality of abrasives particles,wherein the abrasive slurry is soluble such that it retains the abrasive particles on the backing when in its solid state, and releases the abrasive particles from the backing during the process of dissolution to a dissolved state.7. The article of wherein the abrasive slurry is a UV light cured abrasive slurry.8. The article of wherein the slurry dissolves into a polishing compound upon activation by liquid.9. The article of wherein the liquid is water.10. The article of wherein the cured undissolved slurry has a surface texture comprising geometric forms.11. The article of wherein the geometric forms are polygons.12. The article of wherein the abrasive particles are formed of vermiculite claim 6 , alumina or silicon carbide claim 6 , preferably of alumina.13. A method of abrading a work piece claim 6 , the method including the steps of:providing a coated abrasive article ...

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Номер записи: 74
23-01-2020 дата публикации

Conduit arrangements in intermediate pad, backing pad, and abrading article for extracting abrading debris

Номер: US20200023495A1
Автор: Simon Bäck, Stig Finnas
Принадлежит: Mirka Ltd

The presented solution discloses conduit arrangements in an intermediate pad ( 20, 100 ), a backing pad ( 10, 200 ) and an abrading article ( 300, 400 ). The conduit arrangements enable controlled conveyance of air onto and extraction of air and debris from the surface of an intermediate pad ( 20, 100 ), a backing pad ( 10, 200 ) and an abrading article ( 300, 400 ). The presented solution is an intermediate pad ( 20, 100 ) suitable for use in an abrading system. The presented solution is an abrading system comprising an intermediate pad ( 20, 100 ). The presented solution is a backing pad ( 10, 200 ) suitable for use in an abrading apparatus ( 1 ). The presented solution is an abrading system comprising a backing pad ( 10, 200 ). The presented solution is an abrading article ( 300, 400 ) suitable for use in an abrading system. The presented solution is an abrading system comprising an abrading article ( 300, 400 ). The presented solution further relates to methods of using an abrading system for extracting abrading debris.

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Номер записи: 75
24-04-2014 дата публикации

STRUCTURED ABRASIVE ARTICLES AND METHOD OF MANUFACTURING THE SAME

Номер: US20140109489A1
Автор: NAKAMURA Yoko, Ohishi Michihiro
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A structured abrasive article having an extensible base member; a three-dimensional element including abrasive particles and binder therefore; and a resin layer that binds the extensible base member and the three-dimensional element. 1. A structured abrasive article comprising: an extensible base member; a three-dimensional element including abrasive particles and binder therefore; and a resin layer that binds the extensible base member and the three-dimensional element.2. The structured abrasive article according to claim 1 , wherein the resin layer is a layer made from resin that can be formed in a continuous layer even without a core material.3. The structured abrasive article according to claim 1 , wherein the resin layer is a layer made from resin having an elastic modulus at 25° C. in a range from 1.0×10to 1.0×10Pa.4. The structured abrasive article according to claim 1 , wherein the resin layer is tacky at 25° C.5. The structured abrasive article according to claim 1 , wherein the resin layer bonds the three-dimensional element and the extensible base member to form a film shape.6. A method of manufacturing a structured abrasive article according to claim 2 , comprising:a filling step of filling a mold having a plurality of depressions with an abrasive material composition including abrasive particles and hardening resin;a bonding step of bonding to the resin layer the abrasive material composition filled in the mold; anda hardening step of hardening the abrasive material composition to form on the resin layer the three-dimensional element including the abrasive particles.7. The structured abrasive article according to claim 1 , wherein the extensible base member includes voids on a surface on the resin layer side claim 1 , and the voids are filled with a resin that constitutes the resin layer.8. A method of manufacturing a structured abrasive article according to comprising:an application step of applying a hardening resin composition to one surface of the ...

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Номер записи: 76
29-01-2015 дата публикации

Aqueous Resin Composition for Abrasive Articles and Resulting Articles

Номер: US20150027064A1
Автор: Arnaud Alix, Houga Clement, Jaffrennou Boris
Принадлежит: SAINT-GOBAIN ABRASIFS

An aqueous polymer binder composition adapted for the manufacture of abrasive articles, such as coated abrasive articles, comprising at least one saccharide, at least one polycarboxylic organic acid, and at least one crosslinking catalyst. The aqueous composition is formaldehyde-free and can further comprise rheology modifiers, fillers, and hydrophobizing agents. 1. A coated abrasive article comprising:a backing; andan abrasive layer overlying the backing; abrasive particles and', at least one saccharide,', 'at least one polycarboxylic organic acid, and', 'at least one crosslinking catalyst., 'a polymer binder composition including'}], 'wherein the abrasive layer comprises'}2. A coated abrasive article comprising:a backing; andan abrasive layer overlying the backing; and at least one saccharide,', 'at least one polycarboxylic organic acid, and', 'at least one crosslinking catalyst., 'a polymer binder composition including'}, 'a size coat comprising'}3. A coated abrasive article according to wherein the saccharide is corn syrup claim 1 , dextrin claim 1 , or a combination thereof.4. A coated abrasive article according to wherein the polymer binder further comprises at least one member selected from the group consisting of rheology modifiers and hydrophobic additives.5. (canceled)6. A coated abrasive article according to claim 1 , wherein the saccharide is a monosaccharide claim 1 , a polysaccharide claim 1 , or a combination thereof.7. (canceled)8. A coated abrasive article according to claim 1 , wherein the saccharide comprises is glucose claim 1 , mannose or galactose.9. A coated abrasive article according to claim 6 , wherein the polysaccharide has a number-average molecular weight of less than 5000.10. A coated abrasive article according to claim 9 , wherein the polysaccharide has a polydispersity index (IP) claim 9 , defined by the ratio of the weight-average molecular weight to the number-average molecular weight claim 9 , which is less than or equal to 12.11. ...

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Номер записи: 77
02-02-2017 дата публикации

ABRASIVE ARTICLE HAVING A CORE INCLUDING A COMPOSITE MATERIAL

Номер: US20170028528A1
Автор: Gollapudi Srikant, Saha Naresh, Sathyanarayanaiah Adiseshaiah K.
Принадлежит:

An abrasive article including a bonded abrasive body coupled to a core, the core includes a composite material including an organic material and a metallic material, and the composite material includes at least a first filler that can include nitrides, carbides, borides, oxides, silicates, or a combination thereof. 1. An abrasive article comprising:a bonded abrasive body coupled to a core, wherein the core comprises a composite material including an organic material and a metallic material, and wherein composite material includes at least a first filler selected from the group consisting of nitrides, carbides, borides, oxides, silicates, or a combination thereof.2. The abrasive article of claim 1 , wherein the first filler includes a polycrystalline material.3. The abrasive article of claim 1 , wherein the first filler consists essentially of a polycrystalline material.4. The abrasive article of claim 1 , wherein the first filler comprises a material selected from the group consisting of a silicate claim 1 , a carbide claim 1 , or a combination thereof.5. The abrasive article of claim 1 , wherein the first filler comprises wollastonite.6. The abrasive article of claim 1 , wherein the first filler consists essentially of wollastonite.7. The abrasive article of claim 1 , wherein the first filler comprises silicon carbide.8. The abrasive article of claim 1 , wherein the first filler is present in a first content (Cff) claim 1 , and the core comprises a minority content of the first content for a total weight of the core.9. The abrasive article of claim 1 , wherein the core comprises a first content within a range of at least 1 wt % and not greater than 30 wt %.10. The abrasive article of claim 1 , wherein the organic material comprises a polymer.11. The abrasive article of claim 1 , wherein the organic material comprises phenolic resin.12. The abrasive article of claim 1 , wherein the core includes at least 60 wt % of the composite material for a total weight of the ...

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Номер записи: 78
02-02-2017 дата публикации

ABRASIVE SUPPORT, ABRASIVE ARTICLE COMPRISING THE ABRASIVE SUPPORT, AND METHOD FOR THE PRODUCTION THEREOF

Номер: US20170028530A1
Автор: DOEGE Christine, KARL Peter, NIENTIEDT Juergen
Принадлежит: NEENAH GESSNER GMBH

The invention relates to an abrasive support, to an abrasive article comprising such a support, to the method for producing the same, and to the use of the abrasive article. According to at least one embodiment, the abrasive support comprises an impregnated support material based on synthetic fibers. The impregnated support material has at least on one side having a surface roughness Rof 100 μm to 500 μm, and having an Rof 250 μm to 600 μm. The support has an air permeability of at most 20 l/ms. 1. A support for abrasives , comprising an impregnated support material based on synthetic fibers , wherein the impregnated support material has at least one side having a surface roughness Rof 100 μm to 500 μm and having an Rof 250 μm to 600 μm and the support has an air permeability of at most 20 l/ms.2. The support according to claim 1 , wherein the synthetic fibers comprise synthetic continuous fibers or consist thereof.3. The support according to claim 1 , wherein the support material is a nonwoven.4. The support according to claim 1 , wherein the support material is evenly soaked with an impregnating agent.5. The support according to claim 1 , wherein the support material is impregnated with an impregnating agent on at least one side.6. The support according to claim 1 , wherein the surface roughness Rof 100 μm to 500 μm with an Rof 250 μm to 600 μm of the at least one side of the impregnated support material was produced by calendering with at least one structured roller.7. The support according to claim 1 , wherein the synthetic fibers comprise a polymer material selected from a group comprising polyethylene terephthalate claim 1 , polybutylene terephthalate claim 1 , polyethylene naphthalate claim 1 , polybutylene naphthalate claim 1 , polyamide claim 1 , polyphenylene sulphide claim 1 , polyolefin claim 1 , polycarbonate claim 1 , and combinations thereof.8. The support according to claim 4 , wherein the impregnating agent comprises a resin with a weight-average ...

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Номер записи: 79
02-02-2017 дата публикации

Abrasive particles having particular shapes and methods of forming such particles

Номер: US20170028531A1
Автор: Adam D. LIOR, Alan J. Brandes, Anil Parmar, Anthony C. Gaeta, Anuj Seth, Christopher Arcona, Darrell K. Everts, Doruk O. Yener, Frank J. Csillag, Gregory G. Lafond, Jennifer H. Czerepinski, Paul Braun, Satyalakshmi K. Ramesh, Sidath S. Wijesooriya, Sujatha IYENGAR, William C. Rice
Принадлежит: Saint Gobain Abrasifs SA, Saint Gobain Abrasives Inc

An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.

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Номер записи: 80
24-04-2014 дата публикации

Multi Grit Anti Chatter Sand Paper

Номер: US20140113534A1
Автор: Clyde Alan Pritchett
Принадлежит: Individual

A sanding paper for use with a floor sander having one direction sanding comprising a paper sleeve or belt having a length and a width and a first surface and a second surface joined together and running parallel along the length of the sand paper wherein the first surface is disposed on the sander to apply to the floor first and the second to follow immediately thereafter and wherein the first surface has a grit which is more coarse than the second surface. The sanding paper first grit is a grit between 24-60 and the second grit is between 80 and 120 grit. In place of a middle grit, The intermediate surface between the first surface and second surface and wherein the first surface is between 24 and 40 grit, the intermediate surface between 41 and 80 grit and the third surface between 80 and 120 grit.

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Номер записи: 81
01-02-2018 дата публикации

COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

Номер: US20180029194A1
Автор: Keipert Steven J.
Принадлежит:

A coated abrasive article includes a backing, a make layer, crushed abrasive particles, and a size layer. The crushed abrasive particles include: 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and 0 to 65 weight percent of crushed filler particles having a second composition and a second size grade. The first and second compositions and/or size grades are different. The coated abrasive article has a direction of intended use, a majority of the platey crushed abrasive particles of the coated abrasive article are positioned with their thickness oriented substantially parallel to the direction of intended use. A method of making the coated abrasive article is also disclosed. 114-. (canceled)15. A coated abrasive article comprising:a backing having first and second opposed major surfaces;a make layer secured to at least a portion of the first major surface of the backing; 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and', i) the first and second compositions are different;', 'ii) the first and second size grades are different; or', 'iii) both of i) and ii);, '0 to 65 weight percent of crushed filler particles having a second composition and a second size grade, wherein], 'crushed abrasive particles comprising, on a total weight basisa size layer disposed on and secured to at least a portion of the make layer and platey crushed abrasive particles,wherein the coated abrasive article has a direction of intended use, and wherein a majority of the platey ...

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Номер записи: 82
17-02-2022 дата публикации

BACKFILL TO SECURE ORIENTATION FOR ABRASIVE STRUCTURE

Номер: US20220048162A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., LI Junting, Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Various embodiments disclosed relate to an abrasive article and method of forming abrasive articles using backfill to secure orientation of shaped abrasive particles. An example method includes aligning a plurality of shaped abrasive particles into a pattern, and transferring the pattern to a backing substrate containing a layer of adhesive. Prior to curing the adhesive, a plurality of backfill particles are transferred to the backing substrate, where at least some of the plurality of backfill particles are disposed between the plurality of shaped abrasive particles. 1. An abrasive article , comprising:a backing substrate;{'claim-text': ['a plurality of shaped abrasive particles at least some of which are arranged in a predetermined pattern;', 'a plurality of backfill particles, wherein at least some of the plurality of backfill particles are disposed between the plurality of shaped abrasive particles; and'], '#text': 'a plurality of particles on the backing substrate, including;'}an adhesive coupling the plurality of shaped abrasive particles and the plurality of backfill particles to the backing substrate.2. The abrasive article of claim 1 , wherein at least some of the plurality of backfill particles comprise abrasive particles.3. The abrasive article of claim 1 , wherein at least some of the plurality of backfill particles comprise crushed abrasive particles.4. The abrasive article of claim 1 , wherein at least some of the plurality of backfill particles comprise soft particles that are not substantially abrasive.5. The abrasive article of claim 1 , wherein at least some of the plurality of backfill particles comprise grinding aid particles.6. The abrasive article of claim 1 , wherein at least some of the plurality of backfill particles comprise glass bubbles.7. The abrasive article of claim 1 , wherein at least a majority of the plurality of shaped abrasive particles are shaped as truncated triangular pyramids.8. The abrasive article of claim 1 , wherein at ...

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Номер записи: 83
05-02-2015 дата публикации

ABRASIVE ARTICLE AND METHOD OF FORMING SAME

Номер: US20150033636A1
Автор: Ada Sena, Jeevanantham Muthu, Leonard Scott, LI Lingyu
Принадлежит:

An abrasive article may be configured to work titanium and may comprise a body including a bond material comprising an organic material. A first type of abrasive particles may be contained within the bond material and comprise fused alumina. The body may comprise a burnout modulus of rupture (MOR) of at least about 1.6 MPa. 1. An abrasive article configured to work titanium comprising: a bond material comprising a resin having a high temperature flexure modulus of at least 1.05; and', 'a first type of abrasive particles contained within the bond material comprising fused alumina., 'a body including2. The abrasive article of claim 1 , wherein the first type abrasive particles consist essentially of fused alumina.3. The abrasive article of claim 1 , wherein the first type of abrasive particle comprises an average particle size of at least about 200 microns.4. The abrasive article of claim 1 , further comprising a second type of abrasive particle different than the first type of abrasive particle.5. The abrasive article of claim 4 , wherein the second type of abrasive particle comprises an average particle size of at least about 200 microns.6. The abrasive article of claim 4 , wherein the second type of abrasive particle comprises at least about 60% and not greater than about 95% alumina claim 4 , and at least about 5% and not greater than about 40% zirconia.7. The abrasive article of claim 1 , wherein the body comprise a blend of the first type of abrasive particles and a second type of abrasive particles different than the first type of abrasive particles claim 1 , wherein the blend comprises a different amount (vol %) of the first type of abrasive particle than an amount (vol %) of the second type of abrasive particle.8. The abrasive article of claim 7 , wherein the blend comprises a ratio (AP1/AP2) of at least about 0.01 and not greater than about 4 claim 7 , wherein AP1 represents the weight of first type of abrasive particles in the blend and AP2 represents the ...

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Номер записи: 84
30-01-2020 дата публикации

NONWOVEN ABRASIVE BELT WITH FLEXIBLE JOINT

Номер: US20200030941A1
Автор: Cai Ying, Hsu Shyiguei, RAMIREZ Fernando J., RANGEL Jose J., RAVISHANKAR Sathanjheri, Rice William C., SPENCER Jeremy B., Xu Zhong
Принадлежит:

This disclosure, in general, relates to nonwoven abrasive belts including flexible butt joints and methods of making and using such belts and joints. 1. A nonwoven abrasive belt comprising:a nonwoven abrasive web having a first major surface, a second major surface, a first end, and a second end;wherein the first end and the second end are adhered together by a butt joint, andwherein a portion of the first major surface of the first end or a portion of the first major surface of the second end includes a skived portion.2. The nonwoven abrasive belt of claim 1 , wherein a portion of the first major surface of the first end and a portion of the first major surface of the second end includes a skived portion.3. The nonwoven abrasive belt of claim 1 , wherein the butt joint comprises a stiffness of not greater than 1000 N·mm claim 1 , such as not greater than 900 N·mm claim 1 , not greater than 800 N·mm claim 1 , or not greater than 700 N·mm.4. The nonwoven abrasive belt of claim 1 , wherein the butt joint comprises a stiffness of at least 300 N·mm claim 1 , such as at least 400 N·mm claim 1 , at least 500 N·mm claim 1 , or at least 550 N·mm.5. The nonwoven abrasive belt of claim 1 , the nonwoven abrasive belt has a length of 18 inches claim 1 , and wherein the butt joint comprises an adhesive polymeric composition in an amount of not less than 0.2 wt % and not greater than 1.82 wt % of the total weight of the nonwoven abrasive belt.6. The nonwoven abrasive belt of claim 1 , the nonwoven abrasive belt has a length of 18 inches claim 1 , and wherein the butt joint comprises an adhesive polymeric composition claim 1 , wherein the amount of the adhesive polymeric resin and the amount of the nonwoven abrasive web are present in a ratio (adhesive:web) of not less than 1:200 to greater than 1:50.7. The nonwoven abrasive belt of claim 1 , wherein the butt joint comprises an adhesive polymeric composition disposed in the butt joint in contact with the first end and the distal ...

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Номер записи: 85
04-02-2021 дата публикации

Supporting body for a grinding tool and method of producing a supporting body

Номер: US20210031332A1
Автор: Karl Mayrhofer
Принадлежит: Tyrolit-Schleifmittelwerke Swarovski KG

A supporting body for a grinding tool, the supporting body including an abrasive pad having a preferably circumferential supporting surface for an abrasive material, particularly a superabrasive material. The supporting body consisting substantially of a composite material which is free of abrasive material and consists of a plurality of layers of a natural fiber material which are arranged one atop the other and are connected to each other by plastic, preferably phenolic resin. The natural fiber material preferably is a cotton fabric or paper, and the supporting body includes a first, preferably cylindrical or hollow cylindrical body and at least one additional, preferably cylindrical or hollow cylindrical body, in which the bodies are connected, preferably adhesively bonded, to each other.

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Номер записи: 86
05-02-2015 дата публикации

LOW DENSITY POLISHING PAD

Номер: US20150038066A1
Автор: Allison William C., Frentzel Richard, Huang Ping, Kerprich Robert, Lefevre Paul Andre, Scott Diane
Принадлежит:

Low density polishing pads and methods of fabricating low density polishing pads are described. In an example, a polishing pad for polishing a substrate includes a polishing body having a density of less than 0.5 g/cc and composed of a thermoset polyurethane material. A plurality of closed cell pores is dispersed in the thermoset polyurethane material. 1. A polishing pad for polishing a substrate , the polishing pad comprising: a thermoset polyurethane material; and', 'a plurality of closed cell pores dispersed in the thermoset polyurethane material., 'a polishing body having a density of less than 0.5 g/cc and comprising2. The polishing pad of claim 1 , wherein the polishing body is a homogeneous polishing body.3. The polishing pad of claim 1 , wherein each of the plurality of closed cell pores comprises a physical shell comprising a material different from the thermoset polyurethane material.4. The polishing pad of claim 3 , wherein the physical shells of a first portion of the plurality of closed cell pores comprise a material different than the physical shells of a second portion of the plurality of closed cell pores.5. The polishing pad of claim 1 , wherein each of only a portion of the plurality of closed cell pores comprises a physical shell comprising a material different from the thermoset polyurethane material.6. The polishing pad of claim 1 , wherein each of the plurality of closed cell pores does not comprise a physical shell of a material different from the thermoset polyurethane material.7. The polishing pad of claim 1 , wherein the plurality of closed cell pores provides a total pore volume in the thermoset polyurethane material approximately in the range of 55-80% of the total volume of the thermoset polyurethane material.8. The polishing pad of claim 1 , wherein the polishing body further comprises:a first, grooved surface; anda second, flat, surface opposite the first surface.9. The polishing pad of claim 1 , wherein each of the plurality of closed ...

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Номер записи: 87
08-02-2018 дата публикации

NONWOVEN ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

Номер: US20180036866A1
Автор: Alkhas Robinette S., Apple Ronald D., Moren Louis S.
Принадлежит:

A nonwoven abrasive article includes a lofty open nonwoven fiber web comprising entangled fibers; and abrasive platelets secured to the entangled fibers by at least one binder material. A majority of the abrasive platelets are respectively bonded in an edge-wise manner to at least one of the entangled fibers. Methods of making the nonwoven abrasive article and converted forms, including a convolute abrasive wheel, are also disclosed. 116-. (canceled)17. A nonwoven abrasive article comprising:a lofty open nonwoven fiber web comprising entangled fibers; andabrasive platelets secured to the entangled fibers by at least one binder material,wherein a majority of the abrasive platelets are respectively bonded in an edge-wise manner to at least one of the entangled fibers, respectively, wherein a majority of the abrasive platelets are arranged such that they are orthogonal to the entangled fibers to which they are bonded.18. A nonwoven abrasive article according to claim 17 , wherein the abrasive platelets comprise triangular shaped abrasive platelets.19. A nonwoven abrasive article according to claim 17 , wherein the abrasive platelets are closely-packed along the lengths of the entangled fibers.20. A nonwoven abrasive article according to claim 17 , wherein the nonwoven abrasive article comprises: a hand pad; a floor pad; or a surface conditioning pad claim 17 , disc claim 17 , or belt.21. A nonwoven abrasive article according to claim 17 , wherein the abrasive platelets nominally have the same size and shape.22. A nonwoven abrasive article according to claim 17 , wherein the abrasive platelets comprise shaped abrasive platelets bounded by upper and lower surfaces and a plurality of sidewalls disposed therebetween.23. A convolute nonwoven abrasive wheel comprising a spirally wound and compressed nonwoven abrasive article according to .24. A method of making a nonwoven abrasive article claim 17 , comprising the steps:i) providing a lofty open nonwoven fiber web comprising ...

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Номер записи: 88
09-02-2017 дата публикации

Abrasive Particles and Abrasive Articles Including the Same

Номер: US20170037288A1
Автор: Adefris Negus B.
Принадлежит:

A ceramic shaped abrasive particle bounded by a base surface having a perimeter, contiguous sidewalls abutting the perimeter, and a multifaceted surface comprising contiguous facets. Each of the contiguous sidewalls abuts the perimeter, and collectively the contiguous sidewalls abut the perimeter in its entirety. Adjacent pairs of the contiguous sidewalls abut each other along respective corner edges. The multifaceted surface is spaced apart from the base surface by the contiguous sidewalls. At least one V-shaped groove extends from one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact that corner edge. Less than ten percent of the multifaceted surface area is parallel to the base surface. Pluralities of the shaped abrasive particles and coated abrasive articles including them are also disclosed. 120-. (canceled)21. A ceramic shaped abrasive particle bounded by:a base surface having a perimeter;contiguous sidewalls abutting the perimeter, wherein each of the contiguous sidewalls abuts the perimeter, wherein collectively the contiguous sidewalls abut the perimeter in its entirety, and wherein adjacent pairs of the contiguous sidewalls abut each other along respective corner edges; anda multifaceted surface comprising contiguous facets, wherein the multifaceted surface is spaced apart from the base surface by the contiguous sidewalls, and wherein at least one V-shaped groove extends from a first one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact the first one of the corner edges;and wherein, on a total area basis, less than ten percent of the multifaceted surface is parallel to the base surface.22. The ceramic shaped abrasive particle of claim 21 , wherein the base surface is substantially planar.23. The ceramic shaped abrasive particle of claim 21 , wherein the base surface is trigonal.24. The ceramic shaped abrasive particle of claim 21 , wherein ...

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Номер записи: 89
24-02-2022 дата публикации

MULTIPLE ORIENTATION CAVITIES IN TOOLING FOR ABRASIVES

Номер: US20220055182A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Various embodiments disclosed relate to a tooling apparatus and method for providing multiple orientation cavities in tooling for abrasive particles in an abrasive article or structure. An example method includes aligning a plurality of shaped abrasive particles into a pattern, including collecting the plurality of shaped abrasive particles at least partially into cavities arranged on a dispensing surface, where at least one of the cavities is configured to allow for multiple orientations of one of the plurality of shaped abrasive particles. The pattern is transferred to a backing substrate containing a layer of adhesive, and the adhesive is cured. 1. A method of making an abrasive article , the method comprising:aligning a plurality of shaped abrasive particles into a pattern, including collecting the plurality of shaped abrasive particles at least partially into cavities arranged on a dispensing surface, wherein at least one of the cavities is configured to allow for multiple orientations of one of the plurality of shaped abrasive particles;transferring the pattern to a backing substrate containing a layer of adhesive; andcuring the adhesive.2. The method of claim 1 , wherein each of the cavities is configured to collect a single particle of the plurality of shaped abrasive particles.3. The method of claim 1 , wherein the at least one of the cavities holds a protruding tip of the one of the shaped abrasive particles is in substantially the same position in each of the multiple orientations.4. The method claim 1 , further comprising holding the plurality of shaped abrasive particles at least partially in the cavities using a vacuum source claim 1 , prior to transferring the pattern to the backing substrate.5. The method of claim 1 , wherein the at least one of the cavities allows for exactly two orientations of the multiple orientations of the one of the plurality of shaped abrasive particles.6. The method of claim 5 , wherein the at least one of the cavities ...

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Номер записи: 90
24-02-2022 дата публикации

COATED ABRASIVE ARTICLE HAVING SPACER PARTICLES, MAKING METHOD AND APPARATUS THEREFOR

Номер: US20220055185A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Coated abrasive articles having spacer particles are formed by providing a production tool having a dispensing surface with a plurality of cavities, guiding the production tool past an abrasive particle feeder, dispensing shaped abrasive particles onto the dispensing surface and into the plurality of cavities of the production tool, guiding a resin coated backing sheet adjacent the production tool past a spacer particle feeder, and dispensing spacer particles onto the resin coated backing sheet and/or the production tool after the abrasive particle feeder prior to a deposit point for the shaped abrasive particles. The spacer particles are selected to have a thickness that is greater than a thickness of a resin coating of the resin coating backing sheet and a thickness and density once dispensed that are sufficient to substantially prevent the production tool from contacting the resin coated backing sheet at the deposit point. 1. A coated abrasive article maker apparatus comprising:a production tool having a dispensing surface with a plurality of cavities;at least one roller that guides the production tool through the coated abrasive article maker apparatus, the at least one roller including at least one drive roll for pulling the production tool in a direction of travel;an abrasive particle feeder positioned adjacent the production tool so as to dispense shaped abrasive particles onto the dispensing surface and into the plurality of cavities of the production tool;a resin coated backing sheet feeder that guides a resin coated backing sheet through the coated abrasive article maker apparatus in the direction of travel, the resin coated backing sheet positioned to receive shaped abrasive particles from the plurality of cavities of the production tool at a deposit point; anda spacer particle feeder positioned to dispense spacer particles onto at least one of the resin coated backing sheet in the direction of travel and the production tool after the abrasive particle ...

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Номер записи: 91
24-02-2022 дата публикации

IMPROVED PARTICLE RECEPTION IN ABRASIVE ARTICLE CREATION

Номер: US20220055186A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same. A method includes receiving, at a shaped abrasive particle placement tool comprising cavities (), shaped abrasive particles (), determining whether a threshold number of cavities of the cavities () includes a shaped abrasive particle situated properly therein, in response to determining there is not a threshold number of cavities of the cavities () with a shaped abrasive particle () situated properly therein, receiving, at the shaped abrasive particle placement tool, further shaped abrasive particles, and in response to determining that at least the threshold number of cavities of the cavities () includes a shaped abrasive particle () of the shaped abrasive particles situated properly therein, releasing the shaped abrasive particles () from the shaped abrasive particle placement tool into a binding material () on a substrate () to adhere the shaped abrasive particles () to the substrate (). 1. A method comprising:receiving, at a shaped abrasive particle placement tool comprising cavities, shaped abrasive particles;determining whether a threshold number of cavities of the cavities includes a shaped abrasive particle of the shaped abrasive particles situated properly therein;in response to determining there is not a threshold number of cavities of the cavities with a shaped abrasive particle of the shaped abrasive particles situated properly therein, receiving, at the shaped abrasive particle placement tool, further shaped abrasive particles; andin response to determining that at least the threshold number of cavities of the cavities includes a shaped abrasive particle of the shaped abrasive particles situated properly therein, releasing the shaped abrasive particles from the shaped abrasive particle placement tool into at least one binding material on a substrate to adhere the first shaped abrasive particles and the second shaped abrasive particles to the ...

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Номер записи: 92
24-02-2022 дата публикации

SHAPED ABRASIVE PARTICLE TRANSFER ASSEMBLY

Номер: US20220055187A1
Автор: Eckel Joseph B., Hawkins Ann M., Koenig Amelia W., Nelson Thomas J., Nienaber Aaron K.
Принадлежит:

Various embodiments of the present disclosure relate to a shaped abrasive particle transfer assembly. The shaped abrasive particle transfer assembly includes a substrate including an adhesive and a plurality of shaped abrasive particles adhered to the substrate and forming a predetermined pattern thereon. 1. A shaped abrasive particle transfer assembly , the assembly comprising:a substrate comprising an adhesive; anda plurality of shaped abrasive particles adhered to the substrate and forming a predetermined pattern thereon.2. The shaped abrasive particle transfer assembly of claim 1 , wherein the adhesive comprises a pressure-sensitive adhesive claim 1 , a resinous adhesive claim 1 , a tackifier claim 1 , or a mixture thereof.3. The shaped abrasive particle transfer assembly of claim 2 , wherein the pressure-sensitive adhesive comprises an acrylic pressure-sensitive adhesive claim 2 , a rubber pressure-sensitive adhesive claim 2 , a silicone pressure-sensitive adhesive claim 2 , a styrene block copolymer pressure-sensitive adhesive claim 2 , a polyvinyl ether-based adhesive claim 2 , or a mixture thereof.4. The shaped abrasive particle transfer assembly of claim 1 , wherein the substrate is an adhesive film.5. The shaped abrasive particle transfer assembly of claim 4 , wherein the adhesive film comprises one or more perforations extending between opposed first and second major surfaces of the adhesive film.6. The shaped abrasive particle transfer assembly of claim 1 , further comprising a reinforcing component at least partially immersed in the adhesive and comprising a perforated polymeric film claim 1 , a perforated metal foil claim 1 , a woven fabric claim 1 , a knitted fabric claim 1 , perforated paper claim 1 , a vulcanized fiber claim 1 , a nonwoven claim 1 , a foam claim 1 , a perforated screen claim 1 , a perforated laminate claim 1 , a fibrous web claim 1 , or a combination thereof.7. The shaped abrasive particle transfer assembly of claim 1 , wherein a z- ...

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Номер записи: 93
24-02-2022 дата публикации

BONDED ABRASIVE ARTICLE PRECURSOR

Номер: US20220056327A1
Автор: Beiermann Brett A., Schillo-Armstrong Melissa C., Sorenson Gregory P.
Принадлежит:

Various embodiments of the present disclosure provide a bonded abrasive article precursor (). The bonded abrasive article precursor () includes an abrasive layer comprising a plurality of shaped abrasive particles () disposed on an adhesive () and forming a predetermined pattern. 1. A bonded abrasive article precursor comprising:an abrasive layer comprising a plurality of shaped abrasive particles disposed on an adhesive and forming a predetermined pattern.2. The bonded abrasive article of claim 1 , further comprising a backing having the abrasive layer adhered thereto by the adhesive.3. The bonded abrasive article precursor of claim 2 , wherein the backing comprises a polymeric film claim 2 , a metal foil claim 2 , a woven fabric claim 2 , a knitted fabric claim 2 , paper claim 2 , a vulcanized fiber claim 2 , a non-woven claim 2 , a foam claim 2 , a screen claim 2 , a laminate claim 2 , a fibrous web claim 2 , or a combination thereof.4. The bonded abrasive article precursor of claim 1 , wherein a z-direction rotational angle about a line perpendicular to a major surface of the backing and passing through individual shaped abrasive particles of the plurality of shaped abrasive particles is substantially the same for at least a portion of the plurality of shaped abrasive particles.5. The bonded abrasive article precursor of claim 1 , wherein at least some of the plurality of shaped abrasive particles comprise a ceramic material claim 1 , a polymeric material claim 1 , or a mixture thereof.6. The bonded abrasive article precursor of claim 1 , wherein the adhesive comprises a thermoplastic resin claim 1 , a thermoset resin claim 1 , a radiation curable resin claim 1 , or a mixture thereof.7. A bonded abrasive article comprising:a first major surface and an opposed second major surface each contacting a peripheral side surface and extending in an x-y-direction;a central axis extending through the first and second major surfaces in a z-direction;{'claim-ref': {'@idref ...

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Номер записи: 94
18-02-2021 дата публикации

METHOD OF MAKING A COATED ABRASIVE ARTICLE

Номер: US20210046612A1
Автор: Eckel Joseph B., Jesme Ronald D., Nienaber Aaron K.
Принадлежит:

A method of applying magnetizable particles onto an adherent web includes several steps. Step a) provides a magnetizable particle coating apparatus comprising a downward sloping dispensing surface at least partially disposed within an applied magnetic field. Step b) disposes an adherent web between upper and lower magnetic members and beneath the downward sloping dispensing surface, wherein the web comprises a backing having a curable binder precursor layer disposed on a major surface thereof. Step c) disposes magnetizable particles onto at least a portion of the downward sloping dispensing surface within the applied magnetic field, and subsequently disposed onto the curable binder precursor layer while the adherent web is advanced from an upweb position to a downweb position. Step d) at least partially cures the curable binder precursor layer to fix the orientations of the magnetizable particles. 122-. (canceled)23. A method of applying magnetizable particles onto an adherent web , the method comprising:a) providing a magnetizable particle coating apparatus comprising a downward sloping dispensing surface at least partially disposed within an applied magnetic field;b) disposing the adherent web between upper and lower magnetic members and beneath the downward sloping dispensing surface, wherein the downward sloping dispensing surface is constructed of a dimensionally stable non-magnetizable material, wherein the web comprises a backing having a curable binder precursor layer disposed on a major surface thereof; andc) disposing magnetizable particles onto at least a portion of the downward sloping dispensing surface within the applied magnetic field, and subsequently disposing the magnetizable particles onto the curable binder precursor layer while the adherent web is advanced from an upweb position to a downweb position; andd) at least partially curing the curable binder precursor layer to fix the orientations of the magnetizable particles.24. The method of claim ...

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Номер записи: 95
18-02-2021 дата публикации

A METHOD AND AN APPARATUS FOR ABRADING, AND PRODUCTS AND USES FOR SUCH

Номер: US20210046613A1
Автор: LINDVALL Stefan
Принадлежит: Mirka Ltd

A continuous abrasive product includes predetermined length and number of predetermined kind of abrasive areas on an abrasive surface, A method for abrading a workpiece, includes arranging an abrasive area of an abrasive product at an abrading zone for abrading the workpiece, and after abrading, replacing the abrasive area at the abrading zone with an another abrasive area of the abrasive product for abrading the workpiece according to a subsequent abrading phase. The used abrasive area is replaced by an unused abrasive area of a different kind. The abrasive product comprises a continuous longitudinal abrasive material including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties. 1. A method for abrading a round-shaped workpiece , comprising:arranging an abrasive area of an abrasive product at an abrading zone for abrading the round-shaped workpiece,pressing the abrasive area around the round-shaped workpiece such that the abrasive area and the round-shaped workpiece are arrangeable in contact at the abrading zone, andreplacing the abrasive area at the abrading zone with an another abrasive area of the abrasive product for abrading the round-shaped workpiece,wherein the another abrasive area is different from the abrasive area, wherein the abrasive product comprises a continuous longitudinal abrasive product including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties.2. The method for abrading a round-shaped workpiece according to claim 1 , further comprising feeding the different abrasive areas of the continuous longitudinal abrasive product to the abrading zone constantly claim 1 , in a continuous manner.3. The method for abrading a round-shaped workpiece according to claim 1 , further comprising feeding to the abrading zone the abrading product comprising three or at least three different abrasive areas.4. The method for abrading a round-shaped ...

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Номер записи: 96
18-02-2021 дата публикации

COATED ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME

Номер: US20210046614A1
Автор: Eckel Joseph B., Nienaber Aaron K.
Принадлежит:

A method of making a coated abrasive article is disclosed. A backing has first and second opposed major surfaces. A make layer precursor is disposed on at least a portion of the first major surface. Magnetizable abrasive particles are disposed onto the make layer precursor while under the influence of an applied magnetic field. At least a majority the magnetizable abrasive particles extend away from the make layer precursor in an orientation substantially aligned with the applied magnetic field. Non-magnetizable particles are then disposed onto the make layer precursor while under the influence of the applied magnetic field. At least some of the non-magnetizable particles are disposed between the magnetizable abrasive particles. Then, the make layer precursor is at least partially cured to provide a make layer. 115-. (canceled)16. A method of making a coated abrasive article , the method comprising sequentially:providing a backing having first and second opposed major surfaces, wherein a make layer precursor is disposed on at least a portion of the first major surface;disposing magnetizable abrasive particles onto the make layer precursor while under the influence of an applied magnetic field such that at least a majority the magnetizable abrasive particles extend away from the make layer precursor in an orientation substantially aligned with the applied magnetic field;disposing non-magnetizable particles onto the make layer precursor, wherein at least some of the non-magnetizable particles are disposed between the magnetizable abrasive particles while under the influence of the applied magnetic field; andat least partially curing the make layer precursor to provide a make layer.17. The method of claim 16 , further comprising:disposing a size layer precursor over at least a portion of the make layer, magnetizable abrasive particles, and non-magnetizable particles; andat least partially curing the size layer precursor layer to provide a size layer.18. The method of ...

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Номер записи: 97
16-02-2017 дата публикации

FLEXIBLE ABRASIVE ARTICLE AND METHOD OF USING THE SAME

Номер: US20170043450A1
Автор: Davis Douglas A., Graham Paul D., Pahl Thomas E., Petersen John G., Yang Yugeun P.
Принадлежит:

A flexible abrasive article includes a unitary backing having first and second opposed major surfaces and comprising a polyurethane. In some embodiments, the backing has an average thickness of from 4 to 6 mils (102 to 152 microns), a tensile strength of 500 to 3200 psi (3.45 to 22.1 MPa), and an ultimate elongation of 230 to 530 percent. In some embodiments, the flexible abrasive article has a tensile strength of 400 to 2400 psi (2.8 to 16.5 MPa), and a ultimate elongation of 180 to 380 percent. An abrasive layer is disposed on and secured to the unitary backing. 1. A flexible abrasive article comprising:a unitary backing having first and second opposed major surfaces and comprising a thermoplastic polyurethane, wherein the backing has an average thickness of from 4 to 6 mils, a tensile strength of 500 to 3200 psi, and a ultimate elongation of 230 to 530 percent; and a make layer disposed on at least a portion of the first major surface of the unitary backing, wherein the make layer comprises a polymerized reaction product of components comprising at least one polyepoxide and at least one polyfunctional (meth)acrylate;', 'abrasive particles secured to the make layer; and', 'a size layer disposed on at least a portion of the make layer and abrasive particles, wherein the size layer precursor comprises a polymerized reaction product of components comprising at least one polyepoxide and at least one polyfunctional (meth)acrylate, wherein the second major surface of the unitary backing forms an outer major surface of the flexible abrasive article., 'an abrasive layer disposed on and secured to the unitary backing, wherein the abrasive layer comprises2. The flexible abrasive article of claim 1 , wherein the abrasive particles have a nominal size grade of less than or equal to an ANSI grade P80 or greater than or equal to an ANSI grade P320.3. The flexible abrasive article of claim 1 , wherein the abrasive particles have a nominal size grade of less than or equal to an ...

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Номер записи: 98
19-02-2015 дата публикации

METHODS FOR MANUFACTURING POLISHING PAD AND POLISHING APPARATUS

Номер: US20150047266A1
Автор: FENG CHUNG-CHIH, HUNG YUNG-CHANG, Wu Wen-Chieh, YAO I-PENG
Принадлежит:

The present invention relates to a method for manufacturing a polishing pad. The method of the invention includes the steps of (a) providing a releasing carrier; (b) providing a foaming resin composition; (c) coating the foaming resin composition of the step (b) on the carrier of the step (a); and (d) curing the foaming resin composition of the step (c). The invention also provides a process for manufacturing a polishing apparatus. 1. A method for manufacturing a polishing pad comprising:(a) providing a carrier, wherein the carrier is a releasing material;(b) providing a foaming resin composition;(c) coating the foaming resin composition of the step (b) on the carrier of the step (a); and(d) curing the foaming resin composition of the step (c).2. The method according to claim 1 , wherein the carrier comprises a polyethylene glycol terephthalate film claim 1 , a polypropylene film claim 1 , a polycarbonate film claim 1 , a polyethylene film claim 1 , a polyethylene terephthalate film claim 1 , a releasing paper or a releasing fabric.3. The method according to claim 1 , wherein the carrier is continuously provided.4. The method according to claim 1 , wherein the foaming resin composition comprises a resin claim 1 , a foaming agent claim 1 , and a bridging agent.5. The method according to claim 4 , wherein the resin comprises at least one selected from the group consisting of polyurethane claim 4 , polyolefin claim 4 , polycarbonate claim 4 , polyvinyl alcohol claim 4 , nylon claim 4 , elastic rubber claim 4 , polystyrene claim 4 , poly aromatic molecules claim 4 , fluorine-containing polymer claim 4 , polyimide claim 4 , crosslinked polyurethane claim 4 , crosslinked polyolefin claim 4 , polyether claim 4 , polyester claim 4 , polyacrylate claim 4 , elastic polyethylene claim 4 , polytetrafluoroethene claim 4 , poly (ethylene terephthalate) claim 4 , poly aromatic amide claim 4 , polyarylalkene claim 4 , polymethyl methacrylate claim 4 , a copolymer thereof claim 4 , ...

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Номер записи: 99
19-02-2015 дата публикации

POLISHING PAD, POLISHING APPARATUS AND METHOD FOR MANUFACTURING POLISHING PAD

Номер: US20150050866A1
Автор: FENG CHUNG-CHIH, HUNG YUNG-CHANG, Wu Wen-Chieh, YAO I-PENG
Принадлежит:

The present invention relates to a polishing pad comprising a foaming resin frame and a plurality of auxiliary fiber filaments, and each of the auxiliary fiber filaments is independent and dispersed randomly in the foaming resin frame. The invention also relates to a polishing apparatus and a method for manufacturing the polishing pad. 1. A polishing pad comprising:a foaming resin frame comprising a plurality of holes; anda plurality of auxiliary fiber filaments, wherein each of the auxiliary fiber filaments is independent and dispersed randomly in the foaming resin frame.2. The polishing pad according to claim 1 , wherein the foaming resin frame comprises at least one selected from the group consisting of polyurethane claim 1 , polyolefin claim 1 , polycarbonate claim 1 , polyvinyl alcohol claim 1 , nylon claim 1 , elastic rubber claim 1 , polystyrene claim 1 , polyaromatic molecules claim 1 , fluorine-containing polymer claim 1 , polyidmide claim 1 , cross-linked polyurethane claim 1 , cross-linked polyolefin claim 1 , polyether claim 1 , polyester claim 1 , polyacrylate claim 1 , elastic polyethylene claim 1 , polytetrafluoroethylene claim 1 , poly(ethylene terephthalate) claim 1 , polyaromatic amide claim 1 , polyarylalkene claim 1 , polymethyl methacrylate claim 1 , a copolymer thereof claim 1 , a block copolymer thereof claim 1 , a mixture thereof claim 1 , and a blend thereof.3. The polishing pad according to claim 1 , wherein each of a plurality of holes is independent.4. The polishing pad according to claim 1 , wherein the length of the auxiliary fiber filaments is from about 0.1 mm to about 1.0 mm.5. The polishing pad according to claim 1 , wherein the thickness of the auxiliary fiber filaments is from about 2 denier to about 5 denier.6. The polishing pad according to claim 1 , wherein the ratio of the auxiliary fiber filaments is from about 1% to about 30% by weight.7. The polishing pad according to claim 1 , wherein the auxiliary fiber filaments are made ...

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Номер записи: 100