Способ изготовления рукавной пленки

Изобретение относится к переработке пластмасс и может быть использовано в оборудовании для производства рукавных полимерных пленок. Целью изобретения является повышение производительности процесса производства пленки для различных режимов формования. Способ изготовления рукавной пленки включает экструзию заготовки через формующую головку и регулировку параметров процесса формования по температуре пленки в зоне между линией затвердевания полимера и формующей головкой. Причем скорость потока охлаждающего воздуха увеличивают до появления вибрации пленочного рукава с последующим увеличением производительности до момента достижения заданной высоты расположения линии затвердевания полимера либо заданной температуры пленки на входе в валки тянущего устройства. 1 ил.

Устройство для изготовления труб с поперечными ребрами из термопластичного полимера

Способ регулирования толщины пленки на установке получения пленки методом выдувания с экструдером

Composite strip windable to form a helical pipe and method therefor

A composite strip (10) windable to form a helical pipe is disclosed. The composite strip (10) comprises: an elongate plastic strip (11) having a base portion (12) and at least one lengthwise extending rib portion (20) upstanding from the base portion (12); and an elongate reinforcing strip (30) extending lengthwise and supported laterally by the rib portion (20), the reinforcing strip (30) having a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portion (12). When wound into a helical pipe, the reinforcing strip (30) reinforces the pipe against radial crushing loads. A bead (40) seals the reinforcing strip (30) from the environment. Desirably the composite strip (10) further comprises: a planar lamina (50) extending lengthwise and bonded to the base portion (12), the lamina (50) having a higher Young's modulus and strength than those of the plastic strip (11). The lamina (50) greatly improves the pressure rating of a pipe wound from ...

Composite strip windable to form a helical pipe and method therefor.

Methods and istallations for manufacturing biaxially oriented tubing and the tubing itself.

PROCEDURE FOR THE CONTINUOUS PRODUCTION FROM PLASTIC TUBES BY BIAXIALES PULLING AND PRODUCTION LINE TO THE EXECUTION OF THE PROCEDURE

PRODUCTION OF HOSES OR OTHER ELONGATED ARTICLES

CIGARETTE FILTER AND PROCEDURE FOR THEIR PRODUCTION

INDUCTION COUPLING FOR BRAKE CAPSTAN AT THE FLAT PUTTING

Procedure for the continuous production of endless, helically curved Kunststoffschäuchen and/or - intestines

Procedure and device for the production of Tragtaschen

PROCEDURE AND BLOWING NOZZLE FOR REMOVING THE SPLINTERS FROM ALVEOLARPLATTEN

EXTRUDING HEAD

BLOWING FOIL PLANT AS WELL AS PROCEDURE FOR THE ENTERPRISE THE SAME

ASSEMBLY PROCEDURE AND PLASTIC COMPOUND PIPE

EINUND MULTI-LAYER ONE BLOW-FORMED FOILS

PROCEDURE FOR THE PRODUCTION OF A EVOHZUSAMMENSETZUNG

METHOD FOR THE PRODUCTION OF DROP IRRIGATION PIPES

PROCEDURE FOR THE PRODUCTION A ZELLULAREN OF A STRUCTURE ON PLASTIC BASIS AND PROCEDURE FOR THE CONVERSION OF THIS PROCEDURE

SPRAYING BAG, CUT FOR THE PRODUCTION OF A SPRAYING BAG AND A PROCEDURE FOR THE PRODUCTION OF A SPRAYING BAG

PLASTIC FOILS FOR THE THERMOFORMING OF DENTALER PRODUCTS

MANUFACTURING PROCESS FOR BIOLOGICALLY DEGRADABLE FOILS WITH IMPROVED MECHANICAL CHARACTERISTICS

VERY LOW-TEMPERATURE-IMPACTTOUGH, STRAINING MULTI-LAYER LAMINATE ON PP BASIS

PROCEDURE AND DEVICE FOR THE BUILDING OF PNEUMATIC TIRES

PROCEDURE FOR THE PRODUCTION OF LAMINAR MOLDED ARTICLES OR FOILS

PROCEDURE FOR THE PRODUCTION OF A COATED COMPOUND PRODUCT

PROCEDURE FOR MANUFACTURING AS ELECTRICAL INSULATING MATERIAL SUITABLE FOILS

MULTI-LAYER DAMMING PLATE AND PROCEDURE FOR YOUR PRODUCTION

DEVICE AND PROCEDURE FOR THE PRODUCTION OF CELLULOSI SCHLAUCHFOLIEN

PROCEDURE AND DEVICE FOR THE PRODUCTION OF FOILS FROM THERMOPLASTIC PLASTIC

PROCEDURE FOR MANUFACTURING MULTILEVEL FOILS

PROCEDURE FOR THE PRODUCTION OF FOILS FROM WARM-STICKING THERMOPLASTIC PLASTIC

PROCEDURE AND DEVICE FOR THE PRODUCTION OF SCHLAUCHFOLIEN FROM THERMOPLASTIC ART MATERIAL

PROCEDURE AND MECHANISM FOR THE PRODUCTION OF A BUR-FASTENER

Extruding device for the production of Schlauchfolien

TUBULAR PREFORMS FROM THERMOPLASTIC PLASTIC AS WELL AS PROCEDURE AND DEVICE TO ITS PRODUCTION

BIAXIAL ORIENTATION POLYPROPYLENE FOIL

PROCEDURE FOR MANUFACTURING SKID-PROOF LAYER FOILS

OPTICAL FILM AND PROCESS TO ITS PRODUCTION

DEFLECTOR FOR THE PRODUCTION OF SCHLAUCHFOLIEN

PROCEDURE FOR THE CONTINUOUS PRAGEN OF FOILS

RELINING OF PIPELINES AND CHANNELS.

DOSES FUER COAL-ACID BEVERAGES.

PROCEDURE FOR MANUFACTURING A MULTILEVEL PLASTIC TUBE AND MULTILEVEL PLASTIC TUBE FOR THE LINE OF FLUIDS

PROCEDURE FOR THE PRODUCTION OF PACKING FROM FOAMED PLASTIC.

MEHRSCHICHTKUNSTSTOFFILM, PROCEDURES FOR ITS PRODUCTION AND FROM IT MANUFACTURED PACKING.

LONGITUDINAL ORIENTATION OF SCHLAUCHFOLIEN FROM THERMOPLASTIC PLASTIC

Procedure and device for the production biaxial drawn Schlauchfolien

Device for continuous applying of a film from thermoplastic plastic on a substrate

DEVICE FOR THE PRODUCTION OF FOIL COURSES FROM A TUBULAR SHEETING BY CUTTING OPEN AT THE SQUEEZED OFF BUBBLE

Procedure as well as device for the production of endless multifiler threads

Extruded course material and procedure for the production of the same

PROCEDURE AND PRODUCTION LINE FOR THE CONTINUOUS PRODUCTION OF BIAXIAL STRAINED PLASTIC TUBES

Procedure for the production of Schlauchfolien from thermoplastic art-drank

Procedure for the production of foils from polymere plastic

PROCEDURE AND DEVICE FOR THE PRODUCTION OF ARTIFICIAL FIBERS

HIGH PRESSURE COMPOUND PIPE

PRODUCTION OF POLYOLEFINS WITH IMPROVED CHARACTERISTICS

RADIALLY EXPAND-CASH POLYTETRAFLUORETHYLENE AND OUT OF IT FIGURATION EXPAND-CASH ENDOVASKULÄRE STENTS

Device for the production of flexible hoses from thermoplastic plastic

THREE-LAYER PLASTIC FOILS, PROCEDURES FOR THEIR PRODUCTION, AND FROM IT MANUFACTURED PACKING

Device for the production of Schlauchfolien from thermoplastic plastic

EXTRUDING DEVICE AND PROCEDURE FOR ORIENTING PLASTIC MATERIAL BY USE OF A EXTRUSIIONSVORRICHTUNG

Procedure and device for the production of laminar things

PROCEDURE AND DEVICE FOR THE FLAT PUTTING OF A TUBULAR SHEETING

TRIGGER MECHANISM FOR HOSE COURSES FROM PLASTIC FOIL

Procedure for the production of tubular things as well as after the procedure manufactured thing

STRENGTHENED ONE AND STABILIZATION MULTI-LAYER CABLE CONSTRUCTION

Device for transforming a tubular tube into a flat hose

High optics machine direction oriented label facestock

Machine direction oriented coextruded multilayer film structures for use as labelstock and die cut adhesive labels are described. The labelstocks comprise extruded machine direction oriented multilayer films and an adhesive layer. The multilayer film structures include skin layers made from a mixture of 70% to about 99.9% by weight of at least one propylene polymer, and from about 0.1% to about 20% by weight of at least one ethylene polymer, or from about 0.1% to about 25% by weight of at least one propylene polymer, and from about 75% to about 99.9% by weight of at least one ethylene polymer. The coextruded multilayer films are stretch oriented in the machine direction at a temperature at about or above the melting temperature of the polyethylenes and optionally include an adhesive layer and release liner.

Surface-treated fillers for breathable films

The present invention relates to a breathable film comprising at least one thermoplastic polymer and a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof, a process for producing the same, and the use thereof. Furthermore, the present invention is directed to the use of a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof in breathable films.

Polymer composition by continuous filler slurry extrusion

An inventive process for the production of a polymer composition is provided, said process comprising the incorporation of a filler into a polymer material, wherein said polymer material during incorporation of the filler is in at least partially molten state and wherein said filler is incorporated as a slurry.

METHOD AND APPARATUS FOR PRODUCING ORIENTED PLASTIC SHOTSHELLS

METHOD AND APPARATUS FOR EMBOSSING SHEETS

METHOD FOR MAKING ARTICLES FROM POLYMER BLENDS

EMBOSSED POLYESTER FILM PREPARATION

INSTALLATION FOR PRODUCING MULTI-LAYER COMPOSITE TUBES

... ▓▓▓The invention relates to a facility (10) for manufacturing multilayered ▓composite tubes (116). Said facility has (10) a metal strip unwinding device ▓(44), a metal strip storing device (48) connected to the unwinding device ▓(44), a metal strip shaping device (36) connected to the storing device (48), ▓an extruder station (12) connected to the metal strip shaping device (36) and ▓a cooling device (50) connected to the extruder station (12). The metal strip ▓shaping device (36) is used to shape the metal strips (38) unwound by the ▓unwinding device (44) into a metal tube with overlapping longitudinal edges, ▓which are welded in a welding station (32) provided in the extruder station ▓(12) to form the metal tube. The metal tube is adhesive coated with a plastic ▓lining and a plastic coating in the extruder station (12). The composite tube ▓thus manufactured is then cooled to ambient temperature in the cooling device ▓(50).▓ ...

METHOD OF CONTROLLING THE FILM THICKNESS AT A BLOWN FILM EXTRUDER INSTALLATION

PROCESS FOR THE PREPARATION OF BLOWN FILM AND ORIENTED FILM

METHOD OF REMOVING PLASTICIZER MIST FROM AIR

METHOD AND CONTINUOUS PRODUCTION LINE OF PLASTIC TUBES WITH BI-AXIAL DRAWING, AND RESULTING PLASTIC TUBE

Procédé de fabrication en continu selon lequel on réalise une ébauche (E) par extrusion, on amène cette ébauche à température d'orientation moléculaire, on fait passer cette ébauche autour d'un mandrin (12) de dilatation radiale, on assure un calibrage et un refroidissement, tout en soumettant l'ébauche à une traction axiale. La dilatation radiale réalisée sur le mandrin (12) est partielle de sorte que le diamètre interne (B) de l'ébauche (E), lorsqu'elle quitte le mandrin, est inférieur au diamètre interne nominal (D) du tube fini; on réalise une dilatation radiale complémentaire de l'ébauche, jusqu'à son diamètre nominal, par pression interne de fluide. En régime permanent de fonctionnement, la surface interne de l'ébauche (E) n'est plus en contact avec 1 mandrin (12).

METHOD FOR MANUFACTURING ROOFING PRODUCTS

A method of making a roofing product such as a shingle is provided. One such method includes creating a mixture having at least a polymer and a filler, forming a sheet from the mixture, cooling the sheet, embossing the sheet, forming multiple roofing products from the sheet and bundling at least some of the roofing products together. This method is performed using an automated procedure. Another method of the present invention involves creating a composite roofing product using mold cavities, using a robot to transfer some of the roofing products from some of the mold cavities to a conveying system, and stacking together at least two of the roofing products that have different colors of different surface configurations.

GLASS/POLYVINYLBUTYRAL LAMINATES HAVING DIRECTIONAL SURFACE PATTERNS AND A PROCESS FOR PREPARING SAME

De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard can be obtained by varying certain conditions of a melt-fracture extrusion process.

A CORRUGATED PIPE PLANT

The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are moved apart at the end of the mould path and are returned back to its start separately from one another. The apparatus has a mould path device to move the mould segment halves along the mould path and a return conveyor to return the mould segment halves from the end of the mould path back to its start, with the mould path device comprising a machine table having a lower guide and lower drive means for the mould segment halves and a cover frame secured to the machine table having an upper guide and upper drive means for the mould segment halves. The mould path device and the return conveyor form units separated from one another, with a portal robot fixedly anchored to a base plate being provided as the return conveyor and the mould ...

PROCESS FOR PRODUCING STRETCHED ARTICLE OF ULTRAHIGH- MOLECULAR WEIGHT POLYETHYLENE

BLOW HEAD FOR PRODUCING BLOWN TUBULAR FILM

WEATHERSEAL MANUFACTURE

PROCESS FOR PRODUCING PLASTIC FOIL

SINGLE LIP ROTARY DIE

ASEPTIC PACKAGING

PROCESS AND APPARATUS FOR PUMPING GASES IN A FILM

The invention is a process and apparatus for producing a cross-linked, tubular film or "tape" that uses a motor driven nip roll assembly and a product driven idler roll to pump gases contained within the film in a desired direction. The process eliminates the need to create slits to vent gases that are trapped within the film. The motor driven roll comprises a driven nip roll and a driven peristaltic roll that cooperate to drive the film forward and nip the film. The driven peristaltic roll includes a pumping section that comprises a plurality of pumping rollers that pump gases contained within the film in a direction that is the reverse direction of film travel. The product driven roll comprises a spool roller and a plurality of pumping rollers that are circumferentially spaced around the spool roller. The pumping rollers trap and pump gases contained in the film in the reverse direction of film travel.

RESIN SHEET HAVING AN APPEARANCE OF CARPET OR VELVET AND PROCESS THEREFOR

MEHOD OF CONTINUOUSLY PRODUCING A TWIN-WALL PIPE WITH A SOCKET, TWIN-WALL PIPE AND APPARATUS FOR IMPLEMENTING THE METHOD AND FOR PRODUCING THE TWIN-WALL PIPE

A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is made for at least one overflow passage which interconnects the clearance between the external pipe and internal pipe in the vicinity of the transition portion and an adjacent elevation.

LAMINATED FILM AND METHOD FOR PRODUCING SAME

BUBBLE FORMING AND STABILIZING DEVICE FOR USE IN A CONTINUOUS EXTRUSION PROCESS FOR MAKING A BLOWN FILM

UNIT FOR PRODUCTION OF TUBULAR RESIN FILM

A unit for producing a tubular resin film which is oriented by stretching and has high quality and a uniform thickness and which is favorably usable as retardation film or the like, that is, a unit which is provided with a stretching zone (6) for stretching a tubular resin film (20) and a supporting zone (7) for keeping the shape of the stretched tubular resin film (20) wherein the stretching zone (6) is so constituted as to apply lengthwise and/or circumferential stretching force to the tubular resin film (20).

GREENHOUSE

METHOD AND APPARATUS FOR THE EXTRUSION OF TUBULAR THERMOPLASTIC FILM

PLASTIC STRAPPING WITH MODIFIED SURFACE CHARACTERISTICS

A method of making a high strength polyester strap, preferably a coextruded polyethylene terephthalate, suitable for higher load applications that typically require steel strapping. The coextruded strap has a core of highly oriented PET and a skin or outer surface of a PET which has been impact modified. The strap is made by a process in which a coextruded strand (or sheet) is subjected to a plurality of stretching steps with a final stretch ratio of at least 5 to 1. In a preferred embodiment, the strap has an outermost layer in which the brittleness of the strap is reduced and the toughness is increased by the inclusion of an elastomer, which has been found to significantly improve the weldability of the strap.

Partially reflecting multilayer optical films with reduced color

A multilayer optical film body includes a first and second packet of microlayers. Each packet partially transmits and partially reflects light over an extended wavelength range, such as the visible region, for normally incident light polarized along a first principal axis of the film body. In combination, the first and second packets have an intermediate reflection and transmission (e.g. 5-95% internal transmission, on average) for the normally incident light, and similar intermediate reflection/transmission (e.g. 10-90% internal transmission, on average) for oblique light. The packets are laminated or otherwise connected so that light can pass through the packets sequentially. In at least a first test area of the film body, a high frequency spectral variability of the combination of packets is less than a high frequency spectral variability of the first packet by itself, and may also be less than a high frequency spectral variability of the second packet by itself.

METHOD FOR PREPARING MICROPOROUS POLYOLEFIN FILM WITH IMPROVED PRODUCTIVITY AND EASY CONTROL OF PHYSICAL PROPERTIES

Provided is a method of manufacturing a microporous polyolefin film useable as a battery separator, which is easy to control strength, permeability and shrinking properties of the microporous film and embodies excellent quality uniformity and production stability in fabricating the microporous film. 111-. (canceled)12. The manufacturing method of a microporous polyolefin film by using a roll type stretching machine , at least includes:{'sup': 5', '6, '(a) melting/mixing/extruding a sheet composition containing a polyolefin composition having a weight-average molecular weight of not less than 1×10to less than 1×10(component I) and a diluent (component II) in a ratio by weight of 15˜50:85˜50 and shaping these compositions into a sheet form through a T-die;'}(b) using the stretching machine of roll type consisting of at least three rolls to stretch the sheet to the machine direction, and then, stretch the film stretched uni-axially to the machine direction into the transverse direction by a stretching machine of tenter type, in order to form a film by sequential biaxial stretching; and(c) extracting the diluent from the film stretched to the machine and transverse direction and drying the film,{'sup': −3', '−3, 'wherein the stretching machine to the machine direction includes at least one preheating roll, at least one stretching roll and at least one cooling roll or air-cooled device, a total roll contact time at the preheating rolls ranges from 1 to 500 seconds, the stretching is executed in at least one section between rolls, a stretching ratio in one section between two rolls ranges from 1.05 to 6 times, a roll contact coefficient of the sheet on the stretching roll ranges from 1.5 to 54 degree (of angle)×m, and a coefficient of non-contact section between rolls ranges from 0.1×10to 200×10min.'}13. The method of claim 12 , wherein the polyolefin composition in step (a) includes at least one polyolefin resin component claim 12 , or 80 to 99.9 wt % of at least one ...

RIBBED FILM STRUCTURES WITH PIGMENT CREATED VISUAL CHARACTERISTICS

In one example embodiment, a film includes a coextruded structure having both an extruded ribbed skin layer that includes a plurality of ribs, and a core layer. The ribs are spaced apart by a web that is integral with the ribs. The film also includes a coloring agent that is substantially more apparent in the ribs than in the web, such that a contrast in color and/or color intensity between the ribs and the web is visible. 1. A film , comprising: a ribbed skin layer that includes a plurality of ribs, where consecutive ribs are spaced apart from each other by a web that is integral with the consecutive ribs; and', 'a core layer attached to the ribbed skin layer; and, 'a coextruded structure that includesa coloring agent, wherein the coloring agent is apparent in one of the ribbed skin layer, and the core layer.2. The film as recited in claim 1 , wherein the ribbed skin layer and the core layer both comprise plastic.3. The film as recited in claim 1 , wherein the coloring agent is present only in the ribbed skin layer.4. The film as recited in claim 3 , wherein the coloring agent is apparent substantially only in the ribs of the ribbed skin layer.5. The film as recited in claim 1 , wherein the coloring agent is one of: substantially opaque; translucent; and claim 1 , transparent.6. The film as recited in claim 1 , wherein the coloring agent is present only in the core layer.7. The film as recited in claim 6 , wherein the film further comprises a voiding agent in the ribbed skin layer.8. The film as recited in claim 1 , wherein there is a visible contrast between the ribs and the webs claim 1 , and the visible contrast is at least one of: a contrast in color; and claim 1 , a contrast in intensity of color.9. The film as recited in claim 1 , wherein the ribbed skin layer includes indicia perceptible by one or more senses of a user claim 1 , and wherein the indicia are one of:substantially cosmetic in nature; andindicative of a physical property of the film.10. The film ...

Polymer blends

The present invention provides, among other things, extruded blends of aliphatic polycarbonates and polyolefins. In one aspect, provided blends comprise aliphatic polycarbonates such as poly(propylene carbonate) and a lesser amount of a crystalline or semicrystalline polymer. In certain embodiments, provided blends are characterized in that they exhibit unexpected improvements in their elongation properties. In another aspect, the invention provides methods of making such materials and applications of the materials in applications such as the manufacture of consumer packaging materials.

HIGH MOLECULAR WEIGHT POLYETHYLENE

The present invention pertains to a polyethylene polymer characterised by the following properties: A number average molecular weight Mn of at least 2.0*10g/mol, a weight average molecular weight of at least 2.0*10g/mol, a Mw/Mn ratio of above 6, and a strain hardening slope of below 0.10 N/mm at 135° C. It has been found that a polymer with these properties have be converted through solid state processing into films and fibers with good properties. A solid state processing process, films and fibers, and their use are also claimed. 1. A polyethylene polymer , wherein the polyethylene polymer has a number average molecular weight Mn of at least 2.0*10g/mol , a weight average molecular weight Mw of at least 2.0*10g/mol , a Mw/Mn ratio of above 6 , and a strain hardening slope of below 0.10 N/mm at 135° C.2. The polyethylene polymer according to claim 1 , wherein the polymer has a Mn in the range of 2.0-10*10gram/mole claim 1 , in combination with a Mw/Mn of at least 10.3. The polyethylene polymer according to claim 1 , wherein the polymer has a Mn in the range of 2.0-8*10gram/mole claim 1 , in combination with a Mw/Mn of at least 15.4. The polyethylene polymer according to claim 1 , wherein the polymer has an Mn of at least 800 claim 1 ,000 g/mol and a Mw/Mn ratio between 6 and 15.5. The polyethylene polymer according to claim 1 , wherein the Mw/Mn ratio of the polymer is more than 8.6. The polyethylene polymer according to claim 1 , wherein the weight average molecular weight Mw of the polymer is more than 2 claim 1 ,000 claim 1 ,000 g/mol.7. The polyethylene polymer according to claim 1 , wherein the polymer comprises a first fraction with a Mw of at least 7 million g/mol in combination with a second fraction with a Mw of at most 1 million gram/mol.8. The polyethylene polymer polymer according to claim 1 , wherein the polymer has an elastic shear modulus determined directly after melting at 160° C. of at most 1.4 MPa.9. A method for manufacturing a polyethylene ...

POLYESTER FILM, METHOD FOR PRODUCING THE SAME, BACK SHEET FOR SOLAR CELL, AND SOLAR CELL MODULE

A method for producing a polyester film includes: an unstretched film formation step of forming an unstretched polyester film having a thickness of from 2.5 mm to 5.0 mm by melt-extruding a polyester resin using an extruder, and cooling the polyester resin; and a stretching step of stretching the formed unstretched polyester film in at least one direction after heating the formed unstretched polyester film so as to have a mean temperature T1 (° C.), a surface temperature, and a central temperature. The mean temperature T1 (° C.) satisfies a relationship represented by formula (1): Tg−20° C. Подробнее

METHOD AND APPARATUS FOR CONTROLLED SHRINKING OF PLASTIC SHEET MATERIAL

Apparatus for controlled shrinking of molten plastic sheet material comprises a series of parallel cylindrical rollers for moving the plastic sheet material from a first position to a second position. At least one heater is aligned with the rollers for maintaining the plastic sheet material in a molten state while the rollers move the plastic sheet material, and a drive mechanism rotates the rollers so that the tangential speed of the rollers progressively decreases from the first position toward the second position. As a result of the progressive decrease in tangential speed of the rollers, the speed of the plastic sheet material is progressively reduced as the plastic sheet material approaches the second position, so that portions of the plastic sheet material closer to the second position move toward the second position more slowly than portions of the plastic sheet material further from the second position. 1. Apparatus for controlled shrinking of molten plastic sheet material , comprising:a support structure having a receiving position for receiving the plastic sheet material and a discharge position for discharging the plastic sheet material;a series of parallel cylindrical rollers rotatably carried by the support structure and extending between the receiving position and the discharge position for moving the plastic sheet material from the receiving position to the discharge position;each roller having an axis of rotation;the rollers positioned relative to one another so as to define a notional travel surface for the plastic sheet material that is substantially tangential to each of the rollers;the rollers spaced from one another to define gaps between each pair of adjacent rollers;the gaps being sufficiently small to inhibit the plastic sheet material from flowing through the gaps below the axes of rotation of the respective rollers during rotation of the rollers at operating speed;at least one heater aligned with the series of rollers for maintaining the ...

Medical device having outer polymeric member including one or more cuts

A medical device includes an outer polymeric tubular member and an inner tubular member. The outer polymeric tubular member includes one or more cuts formed therein to increase flexibility of the outer polymeric tubular member and includes an inner surface. The inner tubular member extends through the outer polymeric tubular member and has an outer surface in slidable contact with the inner surface of the outer polymeric tubular member. The outer polymeric tubular member is able to move relative to the inner tubular member as the medical device bends. In an example, the outer tubular member may be formed of a heat shrink material.

Plastic bags, rolls of plastic bags, and tubular blown film processes of making the same

A process of manufacturing a roll of plastic bags. The process includes forming a tubular blown film, and collapsing the tubular blown film so that the tubular blown film includes a first side, a second side, a first edge, and a second edge. Openings are cut in the collapsed tubular blown film, and sealing closure mechanisms are inserted through the openings into the collapsed tubular blown film. The sealing closure mechanisms are then fixed to the collapsed tubular blown film.

BLOWING HEAD, METHOD FOR PRODUCING A BLOWN FILM AND BLOWN FILM INSTALLATION

A blowing head, a method for producing a blown film, and a blown film installation include the use of plate spiral distributors in blown film installations for distributing melt steams arriving from extruders and for combining the melt streams to form an annular gap stream in several layers in an annular gap leading to a tubular die. The melt streams in a plate spiral distributor are initially bundled and then forwarded in a bundled manner to a common co-extrusion flow. The distributer has a plurality of spirals in superimposed layers, and the spirals of two layers have a junction for pre-combining the melt streams of two layers, and in that starting from the junction, a common guide leading to the annular gap is provided for combining there the pre-combined melt streams with the annular gap stream. 1. A blowing head for a blown-film plant , with a plate spiral distributor for distributing melt streams arriving from extruders and for combining the melt streams to form an annular gap stream in a plurality of layers in an annular gap leading to a tubular die , the plate spiral distributor having a plurality of spirals in superimposed layers , wherein the spirals of two layers have a junction for pre-combining the melt streams of two layers , and in that starting from the junction , a common guide leading to the annular gap is provided for combining the pre-combined melt streams with the annular gap stream.2. The blowing head according to claim 1 , wherein the spirals of two adjacent layers have a junction.3. The blowing head according to claim 1 , wherein the spirals of three layers have a junction.4. The blowing head according to claim 1 , further including a plurality of junctions having successive inputs to the annular gap.5. The blowing head according to claim 1 , wherein a plate has one spiral on a top side and one spiral on a bottom side.6. The blowing head according to claim 5 , wherein a plurality of plates have spirals on top sides and on the bottom sides.7. ...

MOLDING METHOD AND MOLDING APPARATUS FOR RESIN MOLDED ARTICLE

A molding method for a resin molded article includes: a step of sandwiching a sheet-shaped resin in a molten state extruded downward by a pair of rollers, and sending out downward the sheet-shaped resin in the molten state by a rotational driving of the rollers so as to allow a first stretching; a step of drawing downward the sheet-shaped resin in the molten state sent out downward so as to allow a second stretching; a step of disposing the sheet-shaped resin in the molten state that is drawn in a side portion of a mold disposed below the pair of rollers; and a step of molding the sheet-shaped resin into a shape conforming to a mold shape by depressurizing a sealed space formed between the sheet-shaped resin in the molten state and the mold and/or pressurizing the sheet-shaped resin toward the mold. 1. A molding method for a resin molded article , comprising:a step of extruding a thermoplastic resin at a predetermined extrusion speed so as to droop downward into a sheet-shape in a molten state;a step of sandwiching a sheet-shaped resin in a molten state extruded downward by a pair of rollers, and sending out downward the sheet-shaped resin in the molten state by a rotational driving of the rollers so as to allow a first stretching;a step of drawing downward the sheet-shaped resin in the molten state sent out downward so as to allow a second stretching;a step of disposing the sheet-shaped resin in the molten state that is drawn in a side portion of a mold disposed below the pair of rollers; anda step of molding the sheet-shaped resin into a shape conforming to a mold shape by depressurizing a sealed space formed between the sheet-shaped resin in the molten state and the mold and/or pressurizing the sheet-shaped resin toward the mold.2. The molding method for the resin molded article according to claim 1 , wherein:the step of sending out downward is a step of sending out downward the sheet-shaped resin in the molten state by the rotational driving of the rollers at a ...

PYLON SNAP JACKET ENCASEMENT

The present invention provides a protective coating for protecting a substrate from deleterious elements present in environments in which the substrates are deployed and methods and apparatus for deploying a PVC encasement with a longitudinal snap jacket of suitable length and girth to coat a pylon substrate or building girder and provide a filler within the snap jacket and around an encased pylon. 1. A method of providing a pylon substrate with a longitudinal snap jacket protective encasement , said method comprising steps of:opening the longitudinal snap jacket encasement wide enough to insert the pylon substrate within an interior of the longitudinal snap jacket encasement;securing the snap jacket in a closed position; andpouring a flowable mixture into an area bordered by the longitudinal snap jacket encasement.2. A longitudinal snap jacket encasement system comprising:a PVC encasement with a longitudinal snap jacket around a pylon substrate with the snap jacket fastened in a closed position; anda flowable mixture poured in between the pylon substrate and the PVC encasement with a longitudinal snap jacket. This This application claims the benefit of U.S. Provisional Patent Application Ser. No. 62/336,171 filed May 13, 2016, and entitled “PYLON ENCASEMENT WITH LONGITUDINAL SPLIT COLLAR”; and also claims priority as a continuation in part to U.S. Non-Provisional patent application Ser. No. 14/746,912, filed Jun. 23, 2015, and entitled “SUBSTRATE WITH PROTECTIVE POLYVINYL CHLORIDE SLEEVE” which in turn is a Continuation in Part of application Ser. No. 14/312,663, filed Jun. 23, 2014, and entitled “EXTRUDED HEAT SHRINK PROTECTIVE SEAMLESS PVC PILING SLEEVE AND METHOD”, the entire contents of which are incorporated herein by reference.The present invention relates generally to methods and apparatus for repairing pylons. More specifically, the present invention provides methods and apparatus for a manufacturing and deploying protective polyvinyl chloride encasement ...

COMPOSITION AND PROCEDURE FOR OBTAINING A FILM OF MICRO POROUS THERMOPLASTIC POLYMER THAT IS ESPECIALLY SUITED TO THE PRODUCTION OF PERSONAL HYGIENE ARTICLES SUCH AS DIAPERS AND SANITARY TOWELS

The present invention consists in a method and a composition for obtaining films of a thermoplastic polymer, preferably polyethylene, that are non-breathable and heavily charged with treated mineral particles in order to leave hollow spaces in the structure thereof, resulting in a significant reduction in density. 1. A method to obtain a non-breathable film having a micro-porous structure comprising a base polymer loaded with mineral particles covered by a fatty acid partially adhered to the base polymer by means of a co-polymer adhesive , the method comprising:a stage of dispersion of the particles of mineral load with the polymer; anda film forming stage.2. The method according to claim 1 , wherein the stage of dispersion of the polymer with the mineral load is carried out apart from the extrusion line of the film by mixers with arms claim 1 , turbo-mixers for powder or single or multiple screw extruders-mixers claim 1 , preferably double screw co-rotating extruders with gas removal assisted by a vacuum pump.3. The method according to claim 1 , wherein the stage of dispersion of the polymer with the mineral load is carried out directly in the film extrusion line claim 1 , through a simple or double screw extruder-mixer claim 1 , preferably a double screw co-rotating extruder with gas removal assisted by a vacuum pump.411. The method according to claim claim 1 , wherein claim 1 , in the film forming stage claim 1 , the film is only subject to hot stretching between the extrusion nozzle and the solidification of the film between 20/1 and 60/1 and no subsequent stretching. On the market there are two different types of outer covering for disposable diapers and sanitary towels, the first type consists of a matt polyethylene film, 18-22 microns thick, the second is obtained by lamination or co-extrusion of a 10-22 micron thick polyethylene film with an unwoven polypropylene fabric to give it a more textile appearance.Both Types may be breathable or non-breathable. ...

POLYOLEFIN MICROPOROUS FILM AND METHOD FOR PRODUCING SAME

A polyolefin microporous membrane is produced by forming a gel-like molding using a polyolefin resin containing polypropylene, and stretching the molding in at least one direction, followed by washing, the polyolefin microporous membrane having an injection of electrolyte of 20 seconds or less and a uniform polypropylene distribution in at least one plane perpendicular to the thickness direction. 16-. (canceled)7. A polyolefin microporous membrane produced by forming a gel-like molding using a polyolefin resin containing polypropylene , and stretching the molding in at least one direction , followed by washing , the polyolefin microporous membrane having an injection of electrolyte of 20 seconds or less and a uniform polypropylene distribution in at least one plane perpendicular to the thickness direction.8. The polyolefin microporous membrane according to claim 7 , wherein the polyolefin resin contains polypropylene having a weight average molecular weight of more than 50 claim 7 ,000 but less than 300 claim 7 ,000 in an amount of 0.5% by mass or more but less than 5% by mass.9. The polyolefin microporous membrane according to claim 7 , having a normalized PP/PE ratio whose average is 0.5 or more claim 7 , whose standard deviation is 0.2 or less claim 7 , and whose kurtosis is 1.0 or less claim 7 , as measured by Raman spectroscopy in at least one plane perpendicular to the thickness direction.10. The polyolefin microporous membrane according to claim 7 , wherein weight average molecular weight of polypropylene is more than 50 claim 7 ,000 but less than 150 claim 7 ,000.11. The polyolefin microporous membrane according to claim 7 , containing an ultra-high molecular weight polyethylene having a mass average molecular weight of 1×10or more in an amount of 1 to 50% by weight based on 100% by mass of a total amount of the polyolefin resin.12. A method of producing the polyolefin microporous membrane according to claim 7 , comprising:{'sup': '6', '(a) melt blending a ...

MULTI-LAYER POLYOLEFIN POROUS MEMBRANE, BATTERY SEPARATOR USING SAME, AND PROCESS FOR PRODUCING MULTI-LAYER POLYOLEFIN POROUS MEMBRANE

Considering that battery separators will require further thinner materials and lower costs in the future, a battery separator of the present invention, in which multi-layer polyolefin porous membrane with exceptionally high peel strength against a modified porous layer, suitable for high-speed processing during slit process and battery assembly process, and suitable for laminating on a multi-layer modified porous layer, and a multi-layer modified porous layer are laminated, is provided. A multi-layer polyolefin porous membrane comprising at least two or more layers, the multi-layer polyolefin porous membrane having a shut-down temperature in a range of 128 to 135° C., a rate of increase in air permeation resistance from 30° C. to 105° C. scaled to 20 μm thickness less than 1.5 sec/100 cc Air/° C., and a thickness not more than 20 μm. 1. A multi-layer polyolefin porous membrane comprising:at least two layers,wherein the multi-layer polyolefin porous membrane has a shut-down temperature in a range of 128 to 135° C., a rate of increase in air permeation resistance from 30° C. to 105° C. scaled to 20 μm thickness less than 1.5 sec/100 cc Air/° C., and a thickness not more than 20 μm; and{'sup': 2', '2, 'a plurality of protrusions of polyolefin having a size W within a range of 5 μm≦W≦50 μm and a height H within a range of 0.5 μm≦H, and wherein the protrusions are randomly disposed on one side of the multi-layer polyolefin porous membrane in a density not less than 3/cmand not more than 200/cm.'}2. The multi-layer polyolefin porous membrane according to claim 1 , wherein the air permeation resistance scaled to 20 μm thickness is in a range of 50 to 300 sec/100 cc Air.3. The multi-layer polyolefin porous membrane according to claim 1 , wherein a maximum shrinkage of the multi-layer polyolefin porous membrane in a transverse direction is less than 5%.4. The multi-layer polyolefin porous membrane according to claim 1 , wherein at least one of the at least two layers ...

MICROPOROUS BREATHABLE FILM AND METHOD OF MAKING THE MICROPOROUS BREATHABLE FILM

Microporous breathable films include a polyolefin and an inorganic filler dispersed in the polyolefin. Methods for forming polymeric films and articles of manufacture prepared therefrom are described. 1. A process for making a microporous breathable film comprising the steps ofextruding a composition comprising a polyolefin and an inorganic filler to form a molten web,casting the molten web against a surface of a chill roll using an air knife, air blanket, a vacuum box, or a combination thereof to form a quenched film, andstretching the quenched film to form the microporous breathable film.2. The process of claim 1 , wherein the polyolefin comprises polyethylene claim 1 , polypropylene claim 1 , or a combination thereof.3. The process of claim 1 , wherein the polyolefin comprises low density polyethylene claim 1 , high density polyethylene claim 1 , linear low density polyethylene claim 1 , ultra-low density polyethylene claim 1 , or a combination thereof.4. The process of claim 1 , wherein the polyolefin comprises linear low density polyethylene.5. The process of claim 1 , wherein the polyolefin comprises linear low density polyethylene and the linear low density polyethylene comprises a metallocene polyethylene.6. The process of claim 1 , wherein the polyolefin comprises polypropylene.7. The process of claim 1 , wherein the inorganic filler comprises from about 30% to about 75% by weight of the microporous breathable film.8. The process of claim 1 , wherein an average particle size of the inorganic filler is between about 0.1 microns and about 15 microns.9. The process of claim 1 , wherein the inorganic filler is selected from the group consisting of sodium carbonate claim 1 , calcium carbonate claim 1 , magnesium carbonate claim 1 , barium sulfate claim 1 , magnesium sulfate claim 1 , aluminum sulfate claim 1 , magnesium oxide claim 1 , calcium oxide claim 1 , alumina claim 1 , mica claim 1 , talc claim 1 , silica claim 1 , clay claim 1 , glass spheres claim 1 , ...

HIGH PERFORMANCE SEALABLE CO-EXTRUDED ORIENTED FILM, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

Disclosed herein is a multilayered film comprising a first layer and a second layer; and a tie layer; where the tie layer comprises a crystalline block composite and where the tie layer is disposed between the first layer and the second layer; the first layer being disposed on a first surface of the tie layer; the second layer being disposed on a second surface of the tie layer; where the second surface is opposedly disposed to the first surface; where the multilayered film is biaxially oriented. Disclosed herein too is a method of manufacturing the aforementioned multilayer film. 1. A multilayer film comprising:a first layer and a second layer; anda tie layer; where the tie layer comprises a crystalline block composite or a block composite and where the tie layer is disposed between the first layer and the second layer; the first layer being disposed on a first surface of the tie layer; the second layer being disposed on a second surface of the tie layer; where the second surface is opposedly disposed to the first surface; where the multilayered film is biaxially oriented.2. The multilayer film of wherein crystalline block composite resin in the tie layer comprises a crystalline α-olefin block in an amount of 30 to 70 weight % of the crystalline α-olefin block.3. The multilayer film of wherein crystalline block composite has a crystalline block composite index of 0.3 to up to 1.0.4. The multilayer film of wherein the ethylene polymer of the block composite in the tie layer comprises at least 80 mol % polymerized ethylene.5. The multilayer film of wherein crystalline block composite or the block composite has a melt flow rate of from 3 to 30 g/10 min when measured as per ASTM D 1238 at 230° C. and 2.16 kilograms.6. The multilayer film of claim 1 , where the tie layer further comprises an elastomer; and where the elastomer is a homogeneously branched ethylene-α-olefin copolymer claim 1 , a polyolefin elastomer claim 1 , a vinyl aromatic block copolymer claim 1 , or a ...

Environmentally friendly dry cleaning bags and methods of making same

A method of manufacturing a biodegradable dry cleaning bag is disclosed, the method including loading an environmentally friendly slurry into a hopper, extruding the environmentally friendly slurry, passing the environmentally friendly slurry through a die, inflating the environmentally friendly slurry into a cylindrical shape, thereby creating a cylindrical member, passing the cylindrical member over a first roller, and rolling the cylindrical member onto a roll.

BACK SHEET FOR SOLAR CELL MODULE AND METHOD FOR MANUFACTURING THE SAME

Provided is a back sheet for a solar cell module, and more particularly, a back sheet having a novel multilayer structure substituted for an existing structure in which PVF (Tedlar) film/PET film/PVF (Tedlar) film are sequentially laminated, excellent hydrolysis resistance, and significantly excellent heat adhesion. 1. A back sheet for a solar cell module comprising:a base layer made of a polyester resin; andan adhesive layer laminated on one surface or both surfaces of the base layer and obtained by coating and drying a water based coating composition containing a modified polyolefin based resin containing a carboxyl group at a content of 0.01 to 10 weight %, a cross linking agent, and water.2. The back sheet for a solar cell module of claim 1 , wherein the modified polyolefin resin is a modified polyethylene resin containing 1 to 8 weight % of carboxyl group.3. The back sheet for a solar cell module of claim 2 , wherein the modified polyethylene resin has adhesive strength of 4 to 12 kgf/cm.4. The back sheet for a solar cell module of claim 1 , wherein the cross linking agent is any one selected from oxalzoline based cross linking agents claim 1 , melamine based cross linking agents claim 1 , or a mixture thereof.5. The back sheet for a solar cell module of claim 1 , wherein the coating composition contains 0.1 to 20 weight % of the modified polyolefin based resin containing 0.01 to 10 weight % of the carboxyl group claim 1 , 0.01 to 20 weight % of the cross linking agent claim 1 , and the rest water.6. The back sheet for a solar cell module of claim 5 , wherein the coating composition further contains any one or at least two additives selected from an emulsifier claim 5 , a wetting agent claim 5 , inorganic particles claim 5 , and alcohol at a content of 0.01 to 40 weight %.7. The back sheet for a solar cell module of claim 1 , wherein the adhesive layer is formed by coating and drying the coating composition by an in-line coating method during a stretching ...

POLYOLEFIN POROUS MEMBRANE, BATTERY SEPARATOR OBTAINED USING SAME, AND METHOD OF PRODUCING SAME

A polyolefin porous membrane disclosed. The membrane includes a plurality of protrusions of polyolefin having a size (W) of 5 μm≦W≦50 μm and a height (H) of 0.5 μm≦H. The protrusions are disposed on one side of the polyolefin porous membrane with a density of at least 3/cmand at most 200/cm, and the polyolefin porous membrane has a thickness of at most 20 μm. A battery separator including the membrane is also disclosed. 1. A polyolefin porous membrane comprising:{'sup': 2', '2, 'a plurality of protrusions of polyolefin having a size (W) of 5 μm≦W≦50 μm and a height (H) of 0.5 μm≦H, wherein the protrusions are disposed on one side of the polyolefin porous membrane with a density of at least 3/cmand at most 200/cm, and wherein the polyolefin porous membrane has a thickness of at most 20 μm.'}2. A battery separator claim 1 , comprising the polyolefin porous membrane of .3. The battery separator according to claim 2 , wherein the porous layer comprises at least one of polyamideimide resin claim 2 , polyimide resin claim 2 , and polyamide resin.4. The battery separator according to claim 2 , wherein the porous layer comprises fluorine-based resin.5. The battery separator according to claim 2 , wherein the porous layer comprises at least one of inorganic particles and cross-linked polymer particles.6. The battery separator according to claim 2 , wherein the thickness of the polyolefin porous membrane is at most 16 μm.7. The battery separator according to claim 2 , wherein the thickness of the polyolefin porous membrane is at most 12 μm.8. A method of manufacturing a porous membrane claim 2 , the method comprising:(a) preparing polyethylene resin solution by melting and kneading after adding a forming solvent to polyethylene resin;(b) extruding the polyethylene resin solution through a die, chilling the polyethylene resin solution with a chill-roll having a surface from which residue forming solvent is removed, and forming a gel-like product;(c) stretching the gel-like ...

PACKAGING

Wrapper-type packaging composed of a flexible plastics sheet material in the form of a sack or bag having a front wall and a rear wall, which are located opposite one another and are sealed by a side sealing seam to form a flexible sack-like or bag-like tube, of which the opening is covered by a closure flap which is formed by a projection of the rear wall and is folded onto the front wall at least as far as the opening and is closed by longitudinal sealing and, possibly, transverse sealing or adhesive bonding, the opening having an opening aid, wherein the flexible plastics sheet material is oriented at least uniaxially and optionally is embossed and has a tear-propagation resistance in the machine direction which differs by at least 30% from the tear propagation resistance in the direction transverse to the machine direction. 1: A wrapper-type packaging composed of a flexible polymeric film in the form of a sack or bag , having a front wall and a rear wall , which are opposite to one another and are sealed in each case by a side sealing seam to form a sack like or bag like tube , of which the opening is covered by a closure flap which is formed by a projection of the rear wall and is folded onto the front wall , and also closed by respectively longitudinal side sealing and optionally transverse sealing or adhesive bonding , and optionally having an opening aid , wherein the flexible polymeric film is comprised of to an extent of at least 50 wt % of polyolefins , has through monoaxially orientation a tear propagation resistance in machine direction which differs by at least 30% in relation to the tear propagation resistance in the direction transverse to the machine direction , measured according to DIN 53356-trouser leg , and the opening aid marks the direction of relatively low tear propagation resistance for opening the packaging without tearing one of the sealed seams.2: A wrapper-type packaging as claimed in claim 1 , wherein the at least longitudinally side ...

FILM FOR TIRE INNER LINER, METHOD FOR MANUFACTURING FILM FOR TIRE INNER LINER, PNEUMATIC TIRE, AND METHOD FOR MANUFACTURING PNEUMATIC TIRE

This disclosure relates to a film for a tire inner liner film that may exhibit uniform excellent physical properties over all directions when applied to a tire, and may secure excellent durability and fatigue resistance in a tire manufacturing process or in an automobile running process, a method for manufacturing the film for a tire inner liner, a pneumatic tire using the tire inner liner film, and a method for manufacturing the pneumatic tire using the tire inner liner film. 1. A film for a tire inner liner comprising a base film that is drawn or oriented in a first direction , and is in the undrawn state in a second direction perpendicular to the first direction ,wherein the first direction is set parallel to the axial direction of a tire forming drum for manufacturing a pneumatic tire, anda strength ratio of the first direction and the second direction of the base film is 1.1:1 to 2:1.2. The film for a tire inner liner according to claim 1 ,wherein the first direction is identical to the machine direction (MD) of the base film, and the second direction is identical to the transverse direction (TD) of the base film.3. The film for a tire inner liner according to claim 2 ,wherein the length of the second direction of the base film is 1000 mm or more.4. The film for a tire inner liner according to claim 1 ,wherein the film is drawn 5% to 50% in the first direction of the base film, andfurther comprising an adhesive layer formed on at least one side of the base film.5. The film for a tire inner liner according to claim 4 ,wherein the first direction is identical to the transverse direction (TD) of the base film, and the second direction is identical to the machine direction (MD) of the base film.6. The film for a tire inner liner according to claim 5 ,wherein the length of the first direction of the base film is 1000 mm or less.7. The film for a tire inner liner according to claim 1 ,wherein the base film comprises (i) a copolymer comprising polyamide-based segments ...

HIGHLY POROUS SEPARATOR FILM HAVING A COATING AND A DISCONNECTING FUNCTION

The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene; 133.-. (canceled)34. A biaxially orientated , single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene;(I) the porosity of the porous film is 30% to 80%; and(II) the permeability of the porous film is <1000 s (Gurley number);wherein(III) the porous film comprises an inorganic coating; and(IV) the coated porous film has a Gurley number of <1500 s; and(V) the coated porous film has a Gurley number of >6000 s when it is heated for 5 minutes to over 140° C.35. The film as claimed in claim 34 , wherein the porosity is produced by transformation of β-crystalline polypropylene upon drawing the film claim 34 , wherein at least one β-nucleation agent is present in the film.36. The film as claimed in claim 34 , wherein the propylene polymer is a propylene homopolymer and/or a propylene block copolymer.37. The film as claimed in claim 35 , wherein the β-nucleation agent is a calcium salt of pimelic acid and/or suberic acid and/or a nanoscale iron oxide.38. The film as claimed in claim 34 , wherein the film contains propylene homopolymer and propylene block copolymer.39. The film as claimed in claim 35 , wherein the film contains 50% to 85% by weight of propylene homopolymer claim 35 , 15% to 50% by weight of propylene block copolymer and 50 to 10000 ppm of β-nucleation agent.40. The film as claimed in claim 34 , wherein the density of the film is in the range 0.1 to 0.5 g/cm.41. The film as claimed in claim 34 , wherein the thickness of the film is 10 to 100 μm.42. The film as claimed in claim 34 , wherein the propylene polymers are not produced using metallocene catalysts.43. The film as claimed in claim 34 , wherein the polyethylene is present in quantities of at least 5% by weight with ...

RETARDER MANUFACTURING METHOD

A method for producing a phase difference plate includes a step of forming a layered body including a resin layer (a) containing a resin A having a positive intrinsic birefringence, a resin layer (b) that contains a resin B having a negative intrinsic birefringence and is provided on a surface of the resin layer (a), and a resin layer (c) that contains a resin C having a positive intrinsic birefringence and is provided on another surface opposite to the resin layer (a) of the resin layer (b); a first stretching step of stretching the layered body in one direction at a temperature T1 and a stretching ratio of 3 times or more; and a second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the stretching direction at a temperature T2 that is lower than the temperature T1 to obtain a phase difference plate, wherein the resin C contains a polymer X having a positive intrinsic birefringence and cross-linked particles of a polymer Y having a negative intrinsic birefringence. 1. A method for producing a phase difference plate , comprising:a step of forming a layered body including a resin layer (a) containing a resin A having a positive intrinsic birefringence, a resin layer (b) that contains a resin B having a negative intrinsic birefringence and is provided on a surface of the resin layer (a), and a resin layer (c) that contains a resin C having a positive intrinsic birefringence and is provided on another surface opposite to the resin layer (a) of the resin layer (b);a first stretching step of stretching the layered body in one direction at a temperature T1 and a stretching ratio of 3 times or more; anda second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the stretching direction at a temperature T2 that is lower than the temperature T1 to obtain a phase difference plate,wherein the resin C ...

METHODS AND APPARATUS FOR THE PRODUCTION OF MULTI-COMPONENT FIBERS

The present invention is directed to apparatus and methods for making multi-component microfibers and nanofibers and non-woven fiber mats thereof. In some embodiments, the fibers have diameters ranging from 10 nm or more to 3000 nm or less. In some embodiments, the fibers are made of more than one component and have one or a mix of the following morphologies: core-sheath, side by side, stratified and/or interpenetrating structures. In some embodiments the multi-component fibers are made from two spinnable fluids and in other embodiments the multi-component fibers are made from a single spinnable solution having two different material dissolved within. Unlike certain prior art processes, the present invention does not involve application of an electrical charge to the spinnable fluid to produce the fibers and, as a result, the solvent selection is not limited to those solvents conducive to being electrically charged. 1. An apparatus for forming a non-woven mat of fibers using a stream of pressurized gas comprising:a reservoir containing a spinnable fluid;a nozzle in fluid communication with said reservoir;a fluid pump for moving said spinnable fluid from said reservoir to said nozzle;a solid surface having an opening therethrough wherein said nozzle is oriented to deliver said spinnable fluid through said nozzle and onto said solid surface and said solid surface is oriented so that said spinnable fluid flows along said solid surface when acted upon by the force of gravity; anda means for producing a stream of pressurized gas at a predetermined gas pressure and flow rate across some or all of the surface of said spinnable fluid on said solid surface to produce a fiber.2. The apparatus of further comprising:a first nozzle in fluid communication with a first fluid reservoir, said first fluid reservoir containing a first spinnable fluid; anda second nozzle in fluid communication with a second fluid reservoir, said second fluid reservoir containing a second spinnable ...

Method and Extrusion Line for Producing Peroxide-cross-linked Polyethylene Pipes

A method and extrusion line for producing peroxide-cross-linked polyethylene pipes in an extrusion line having an extruder, a cross-linking furnace and a flue. The extruded tube is subjected to a stretching process, and the cross-linking furnace has a first heating section that extends from its inlet to an actuated deflection roller and a second heating section from the deflection roller to its outlet. The stretching process in the first heating section and the stretching process in the second heating section are monitored and regulated in such a manner that the necessary stretching of the pipe takes place primarily in the first heating section, and the stretching of the pipe in the second heating section is subjected to zero adjustment. In this case, the height of the deflection roller(s) of the cross-linking furnace and the angle of the heating sections to the horizontal plane can be height-adjustable. 1. An extrusion line for the production of peroxide cross-linked polyethylene pipes , comprising:{'b': 5', '13', '7', '7, 'a cross-linking oven (, ) having an actuated deflection roller (), wherein said cross-linking oven furthermore has a first heating section (A) that extends from an inlet to said deflection roller () and a second heating section (B) that extends from said deflection roller to an outlet; and'}{'b': '7', 'means for adjusting a height of said deflection roller () and an angle of said first and second heating sections (A, B) relative to a horizontal plane.'}267. An extrusion line according to claim , which comprises further means for linking the adjustments of the height of said deflection roller () and the angle of said first and second heating sections (A , B). The present application is a divisional application of co-pending U.S. application Ser. No. 13/012,685, filed Jan. 24, 2011.The present invention relates to a method of producing peroxide-cross-linked or polymerized polyethylene pipes in an extrusion line that includes an extruder, a cross- ...

METHODS OF MANUFACTURING SEQUENTIALLY STRETCHED POLYMER FILMS, APPARATUS USED FOR SUCH METHODS, AND PRODUCTS OBTAINED THEREBY

Methods include at least one sequential stretching step between circular or spiralized grooved rollers and the sequential stretching is performed according to at least one of six aspects of the invention. 151-. (canceled)52. A process of orienting a film or assembly of films comprising:{'b': 101', '102, 'stuffing the film or the assembly into a nip between two circularly or helically mutually intermeshing grooved rollers () and (), where the film or the assembly obtains a fine traverse waving either prior to or while entering the nip,'}sequentially stretching the waved film or the waved assembly substantially in a transverse direction upon passing through the nip to form first row formed segments interspersed with second row formed segments, where the waving becomes fully or partly eliminated in the second segments which become oriented by the substantially transverse stretching and where the waving is essentially maintained in first segments which do not become oriented by the substantially transverse stretching and become stabilized by a contraction in the second segments.53. The process according to claim 52 , wherein the stuffing is carried out as a separate step.54. The process according to claim 53 , wherein the separate stuffing step comprises:feeding the film or the assembly between rubber belts which engage the film or the assembly so that while the film or the assembly contracts from a longitudinally strained state to a less strained state, the film or assembly obtains the fine traverse waving prior to entering the nip.551101102101102. The process according to claim claim 53 , wherein the grooved rollers () and () include indentations on crests of teeth of the grooved rollers () and ().56. The process according to claim 55 , wherein: [{'b': 101', '101', '102', '102, 'the indentations on the crests modify a frictional engagement of the film or the assembly on one of the rollers (), where the roller () rotates at a circumferential velocity higher than a ...

MICROPOROUS MEMBRANE AND PRODUCTION METHOD THEREFOR

Provided is a microporous membrane made of a polypropylene-based resin and having high porosity, being useful as a battery separator. The microporous membrane is composed of a polypropylene-based polymer in which a melt mass flow rate (MFR) measured at 230° C. and a load of 21.18 N in accordance with JIS K6758 is 1.0 g/10 min or less, and has porosity of 50% or more. Provided is also a method for producing the same. 1. A microporous membrane , comprising a polypropylene-based polymer in which a melt mass flow rate (MFR , measured under conditions in accordance with JIS K6758 (230° C. , 21.18 N)) is 1.0 g/10 min or less , and having porosity of 50% or more.2. The microporous membrane according to claim 1 , wherein the porosity is in the range of 50 to 60%.3. The microporous membrane according to claim 1 , wherein air permeability is 200 seconds per 100 milliliters or more.4. The microporous membrane according to claim 1 , wherein the air permeability is in the range of 200 to 300 seconds per 100 milliliters.5. The microporous membrane according to claim 1 , wherein the polypropylene-based polymer is a polymer that mainly contains propylene claim 1 , in which a melting point is in the range of 150 to 170° C. claim 1 , and a melt mass flow rate (MFR claim 1 , measured under conditions in accordance with JIS K6758 (230° C. claim 1 , 21.18 N)) is 1.0 g/10 min or less claim 1 , and may arbitrarily contain at least one kind selected from ethylene and α-olefin having 4 to 8 carbons.6. The microporous membrane according to claim 1 , wherein the microporous membrane is used for a separator of an electric storage device.7. The microporous membrane according to claim 6 , wherein the electric storage device is a lithium ion battery.8. The microporous membrane according to claim 6 , wherein the electric storage device is a capacitor.9. An electric storage device claim 6 , comprising the microporous membrane according to .10. A lithium ion battery claim 7 , comprising the ...

POLYESTER FILM AND MANUFACTURING METHOD THEREFOR, AND POLYESTER MOLD PRODUCT USING SAME AND MANUFACTURING METHOD THEREFOR

Provided are a polyester film that is usable for protecting a surface of a metal plate of a construction material, a decorative material, an interior material, an electronic product, etc., and a manufacturing method therefor, and a polyester mold product using the same and a manufacturing method therefor, wherein the polyester film has low orientation and low modulus to have excellent moldability. 1. A polyester film comprising a copolymerized polyester ,{'sup': 2', '2, 'wherein 20% tensile modulus F20 is 8.0 to 14.5 kg/mm, and 100% tensile modulus F100 is 11.0 to 21.5 kg/mmin a machine direction and a transverse direction,'}{'sup': '2', 'claim-text': {'br': None, 'i': A', 'F', 'F, '=(100−20)/0.8\u2003\u2003[Equation 1]'}, 'a modulus variation A according to a tensile rate according to Equation 1 below in 20% to 100% of tensile section is 3 to 10 kg/mma heat shrinkage of the film in the machine direction and the transverse direction after heat treatment at 150° C. for 30 minutes is 2% or less,moldability is 80% or more, andthe film includes 1 to 4.8 mol % of copolymerized component.2. The polyester film of claim 1 , wherein shrinkage stress in the machine direction after 100 seconds at 140° C. from an initial load of 6.21 N/mmis −5.5 to −3.0 N/mm claim 1 , and shrinkage stress in the machine direction after 100 seconds at 140° C. from an initial load of 0.65 N/mmis −0.5 to 1.0 N/mm.3. The polyester film of claim 1 , wherein the polyester film has a melting point of 240 to 253° C.4. The polyester film of claim 1 , wherein the polyester film has a plane orientation coefficient of 0.120 to 0.155.5. The polyester film of claim 1 , wherein the polyester film has density of 1.384 to 1.397 g/cm.6. The polyester film of claim 1 , wherein the copolymerized polyester includes an aromatic dicarboxylic acid component claim 1 , ethylene glycol claim 1 , and at least any one glycol selected from the group consisting of branched aliphatic glycol and alicyclic glycol as the ...

BIAXIALLY ORIENTED POLYPROPYLENE FILM, METALLIZED FILM AND FILM CAPACITOR

A biaxially oriented polypropylene film exhibits excellent withstand voltage characteristics and reliability and secure stable productivity and processability into an element in high-voltage capacitor applications, and therefore is suitable for capacitors and other applications and has high dimensional stability, a low thermal shrinkage at high temperatures, and in particular, a low thermal shrinkage stress. The biaxially oriented polypropylene film has a meso pentad fraction of 95% or more but less than 98%, a thickness of 1 to 3 μm, and a transversal thermal shrinkage stress at 140° C. of 0 N/mmto 1 N/mm. 111.-. (canceled)12. A biaxially oriented polypropylene film comprising polypropylene having a meso pentad fraction of 95% or more , but less than 98% , and the film has a micrometric thickness of 1 to 3 μm and a transversal thermal shrinkage stress at 140° C. of 0 to 1 N/mm.13. The polypropylene film according to claim 12 , wherein the polypropylene is a linear polypropylene.14. The biaxially oriented polypropylene film according to claim 12 , having a longitudinal thermal shrinkage stress at 140° C. of 0.5 to 2 N/mm.15. The biaxially oriented polypropylene film according to claim 12 , wherein the sum total of the longitudinal thermal shrinkage stress at 140° C. and the transversal thermal shrinkage stress at 140° C. is 0.5 to 2.5 N/mm.16. The biaxially oriented polypropylene film according to claim 12 , having thermal shrinkages after a treatment at 140° C. for 15 minutes of 4 to 7% in a longitudinal direction and 0 to 2% in a transverse direction.17. The biaxially oriented polypropylene film according to claim 12 , wherein the sum of thermal shrinkages after a treatment at 120° C. for 15 minutes in a longitudinal direction and a transverse direction is 2.5% or less.18. A metallized film comprising the biaxially oriented polypropylene film according to claim 12 , and a metal film provided on at least one surface thereof.19. The metallized film according to ...

DOUBLE-SIDED TRANSCRIPTION TYPE SHEET/FILM FORMING ROLL APPARATUS AND DOUBLE-SIDED TRANSCRIPTION TYPE SHEET/FILM FORMING METHOD

An apparatus includes a first roll and a second roll on each of which a pattern is formed, a first motor and a second motor to rotate the respective rolls, a shaft direction supporting mechanism to support the second roll along a shaft direction and an axial position adjusting mechanism configured to move the shaft direction supporting mechanism along the shaft direction. The posture of the rotating shaft of the second motor is maintained constant at all times, and the second roll is moved in the shaft direction along the first roll, thereby adjusting the positions of both patterns on the first roll and the second roll along the shaft direction. 1. A double-sided transcription type sheet/film forming roll apparatus comprising a first roll and a second roll configured to be rotatable in opposition to each other , on each of which a preset pattern is formed and configured to feed a molten resin into a part between the first roll and the second roll to thereby form a sheet or a film on both surfaces of which the patterns are transcribed , the apparatus comprising:a first motor configured to rotate the first roll;a second motor including a rotating part on which a plurality of permanent magnets are arranged, and configured to rotate the second roll;a push-pull unit capable of moving the first roll toward or away from the second roll; anda power transmission mechanism configured to couple the second motor with the second roll,the power transmission mechanism comprising an intermediate bearing part and two shaft couplings,one of the shaft couplings coupling the second motor and the intermediate shaft part with each other, and an other of the shaft couplings coupling the second roll and the intermediate shaft part with each other,a variation state of a rotating shaft of the second roll created when bringing the first roll close to and away from the second roll is absorbed to be eliminated as the intermediate shaft part is inclined with respect to the one of the shaft ...

SOLAR MODULE BACK SHEET, AND METHOD FOR MANUFACTURING SAME

Provided are a polyester white film and a back sheet for a solar cell module using the same, and in particular, provided is a polyester white film having improved light reflectance. 1. A polyester white film having a whiteness index of 100 or higher , reflectance of 90% or higher at 550 nm , MD thermal shrinkage of 2.0% or lower at 150° C. after 30 minutes , a color difference (ΔE) of 2.0 or less after irradiation of QUV (1.23 W/m×340 nm×60° C.×99 hours) , and MD elongation retention of 50% or higher at 121° C. and RH 100% after 50 hours.2. The polyester white film of claim 1 , comprising a matrix resin made of a polyester resin claim 1 , rutile type titanium dioxide claim 1 , and a benzoxazole based fluorescence whitening agent.3. The polyester white film of claim 2 , wherein the rutile type titanium dioxide is contained in a content of 10-20 wt % and the benzoxazole based fluorescence whitening agent is contained in a content of 100-900 ppm claim 2 , based on the total weight of the film.4. The polyester white film of claim 3 , wherein the rutile type titanium dioxide has an average particle size of 0.1-0.5 μm.5. The polyester white film of claim 3 , further comprising an additive selected from an oxazoline based thickener claim 3 , oleic acid claim 3 , and mixtures thereof.6. The polyester white film of claim 5 , wherein the oxazoline based thickener is contained in a content of 50-700 ppm based on the total weight of the film claim 5 , and the oleic acid is contained in a content of 40-400 ppm based on the total weight of the film.7. The polyester white film of claim 2 , wherein the polyester resin is polyethylene terephthalate.8. The polyester white film of claim 1 , wherein it is used for a back sheet for a solar cell module.9. A back sheet for a solar cell module claim 1 , the back sheet being made of the polyester white film selected from claim 1 , or comprising one or more layers of the polyester white films.10. A method for manufacturing a polyester white ...

IMPROVED SEPARATORS, BATTERIES, SYSTEMS, VEHICLES, AND RELATED METHODS

Improved battery separators, base films or membranes and/or a method of making or using such separators, base films or membranes are provided. The preferred inventive separators, base films or membranes are made by a dry-stretch process and have improved strength, high porosity, high charge capacity and high porosity to provide excellent charge rate and/or charge capacity performance in a rechargeable battery. 1. A membrane comprising:a microporous polymer film that provides a battery with at least 3 C charge and/or discharge performance.2. The membrane according to wherein said microporous polymer film preferably made by a dry-stretch process and preferably having substantially round shaped pores claim 1 , and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0 claim 1 , and porosity in the range of 50% to 80%.3. The membrane according to wherein said film being made by a method of stretching including at least one of: biaxial stretching including a machine direction stretch and a transverse direction stretch with a simultaneous controlled machine direction relax claim 1 , simultaneous or sequential machine direction stretch and transverse direction stretch claim 1 , and machine direction stretch followed by transverse direction stretch with simultaneous machine direction relax.4. The membrane according to wherein the polymer being at least one of a semi-crystalline polymer and a semi-crystalline polymer having a crystallinity in the range of 20-80%.5. The membrane according to wherein said polymer being selected from the group consisting of polyolefins claim 1 , fluorocarbons claim 1 , polyamides claim 1 , polyesters claim 1 , polyacetals (or polyoxymethylenes) claim 1 , polysulfides claim 1 , polyvinyl alcohols claim 1 , co-polymers thereof claim 1 , and combinations thereof.6. The membrane according to wherein an average pore size of said microporous polymer film being in the range of 0.09 to 0.99 ...

METHOD FOR PREPARING MICROPOROUS POLYOLEFIN FILM BY THERMALLY-INDUCED PHASE SEPARATION METHOD

The present invention discloses a method for preparing a microporous polyolefin film comprising: a step of injecting a composition comprising polyolefin 30 to 60 wt % and a diluent, which can make liquid-liquid phase separation with the polyolefin thermodynamically 40 to 70 wt %, into an extruding machine, and melting and kneading thereof to prepare a single phase melt; and a step of extruding the melt while conducting liquid-liquid phase separation by passing through a section having the temperature below the liquid-liquid phase separation temperature and forming thereof in the form of a sheet, and a microporous polyolefin film prepared according to the method. 1. A method for preparing a microporous polyolefin film comprising:(a) a step of injecting a composition comprising polyolefin 30 to 60 wt % and a diluent 40 to 70 wt %, which can make liquid-liquid phase separation with the polyolefin thermodynamically, into an extruding machine, and melting and kneading thereof to prepare a single phase melt; and(b) a step of extruding the melt while conducting liquid-liquid phase separation by passing through a section having the temperature below the liquid-liquid phase separation temperature and forming thereof in the form of a sheet.2. The method for preparing a microporous polyolefin film according to claim 1 , wherein Total Hansen solubility parameter of the diluent is higher than Total Hansen solubility parameter of the polyolefin.3. The method for preparing a microporous polyolefin film according to claim 1 , wherein Total Hansen solubility parameter of the diluent is higher than Total Hansen solubility parameter of the polyolefin as much as 0.1 to 3.0.4. The method for preparing a microporous polyolefin film according to claim 1 , wherein the diluent comprises ester of trimethylolpropane or ester of triethyleneglycol.5. The method for preparing a microporous polyolefin film according to claim 1 , wherein the temperature difference (delta T) between a T-die of the ...

PLASTIC STRAPPING BAND FOR WRAPPING AN OBJECT AND OF METHOD OF MAKING THE BAND

The present invention relates to a plastics-material strapping band () for wrapping around one or more articles. The plastics-material strapping band has the following constituent parts: a) up to approximately 90% by weight polyester, b) approximately 1% by weight to 5% by weight polyolefin and c) approximately 5% by weight to 10% by weight fibre material. The invention also relates to a method for producing a plastics-material strapping band. 1. Plastic strapping for wrapping around one or several objects , the strapping consisting essentially of the following components:a) up to about 90% polyester by weight,b) about 1 to 5% polyolefin by weight andc) about 5 to 10% fibrous material by weight.2. The plastic strapping according to claim 1 , wherein the fibrous material of component c) has a higher melting temperature than the components a) and b).3. The plastic strapping according to claim 1 , wherein the proportion of polyester of component a) is about 85% to 90% weight.4. The plastic strapping according to claim 1 , wherein the polyolefin is polyethylene claim 1 , polypropylene or combinations thereof.5. The plastic strapping according to claim 1 , wherein the fibrous material of component c) is comprised of fibers of a maximal length of up to 20 mm.6. The plastic strapping according to claim 1 , wherein natural plant and/or other mineral fibers are used as the fibrous material of component c).7. The plastic strapping according to claim 1 , wherein cellulose fibers or rubber fibers from natural polymers are used as the fibrous material of component c).8. The plastic strapping according to claim 1 , wherein the fibrous material of component c) is composed of inorganic glass fibers claim 1 , basalt fibers claim 1 , carbon fibers claim 1 , or ceramic fibers.9. The plastic strapping according to claim 1 , wherein the fibrous material of component c) is composed in combination of fibers according to to .10. A method of making of plastic strapping as defined in claim 1 ...

METHOD OF MAKING A MICROPOROUS MATERIAL

A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix. 1. A method for producing a battery with a battery separator , the battery separator is a microporous material , comprising the steps of:making the battery separator bymixing ultra high molecular weight polyethylene (UHMWPE), filler and processing plasticizer together to form a mixture, having a weight ratio of filler to UHMWPE of from 1:9 to 15:1 by weight; wherein the filler constitutes from about 5 percent to about 95 percent by weight of the microporous material;extruding said mixture to form a sheet;calendering said sheet;extracting all or part of said processing plasticizer from said sheet to produce a matrix comprising UHMWPE and said particulate filler, the filler being distributed throughout said matrix, to produce a microporous matrix sheet;stretching said microporous matrix sheet in at least one stretching direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix sheet; andcalendering said stretched microporous matrix sheet, andplacing the battery separator in the battery.2. The method of wherein the ...

Bioabsorbable ,oriented, deformable fixation material and plate

A bioabsorbable surgical osteosynthesis plate operable to be secured by at least one fastener through at least one fastener opening formed in the plate to a bone. The plate includes a flat section having first and second surfaces defining a main plane of the plate. The plate includes a polymer material that is oriented multiaxially and is substantially rigid and substantially deformable at a first thermochemical state. In the multiaxially oriented structure of the plate the polymer material is arranged according to at least three different orientation axes along the main plane of the plate as a result of solid state drawing of the plate. The polymer material of the plate has isotropic mechanical tear properties in different directions along the main plane of the plate.

Polypropylene Composition Combining Low Sealing Initiation Temperature, Low Haze, Low Hexane Solubles and Improved Tear Resistance and Melting Temperature

Polypropylene composition which combines low sealing initiation temperature (SIT) and high melting point (T), furthermore showing a broad sealing window, low hexane solubles and good optical properties, like low haze. 1. A polypropylene composition being a binary blend comprising 2 polypropylene polymer fractions P1 and P2 in specific amounts:35 to 60 wt % of (P1) being a propylene copolymer comprising hexene-derived comonomer units in an amount of 0.5 to 2.5 wt % and65 to 40 wt % of (P2) being a propylene terpolymer comprising hexene-derived comonomer units in an amount of 4.0 to 10.0 wt % and ethylene-derived comonomer units in an amount of 0.1 to 1.0 wt %, andwhereby the composition is characterized by(i) a ratio of the hexene content of polymer fraction P2 to polymer faction P1 between 2.5 and 8.0,(ii) a ratio of the total hexane amount of the composition to the hexene amount of polymer fraction P1 between 1.5 and 4.0,(ii) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of 2.0 to 15.0 g/10 min,(iii) a melting temperature Tm as determined by DSC according to ISO 11357 of from 128° C. to 145° C.,{'sub': 'c', '(iv) a crystallization temperature Tas determined as determined by DSC according to ISO 11357 of from 82° C. to 110° C.,'}(v) a hexane solubles content determined in accordance with FDA section 177.1520 of at most 1.0 wt % and(vi) an amount of xylene cold soluble (XCS) in the range of 10 to 40 wt % determined at 25° C. according ISO 16152; first edition; 2005-07-01.2. The polypropylene composition according to claim 1 , whereby the composition is obtained in the presence of a metallocene catalyst.5. A process for producing water or air quench blown films claim 1 , comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'i) blowing up a tube of a molten polypropylene composition according to with air perpendicularly to an upwards direction from a side-fed blown film die;'}ii) cooling the composition down with a water contact ...

ELASTOMERIC FILM COMPOSITE AND MANUFACTURING METHOD THEREOF

The present invention relates to an elastomeric film composite, which comprises: at least one upper surface layer, at least one intermediate layer, and at least one lower surface layer. Material surface compatibility is selectively made poor and is used to pull open a surface gap between layers through applying an extension process without application of hot pressing so that the elastomeric film composite is made to have an embossed surface structure in the form of cloth. 1. An elastomeric film composite , comprising:at least one upper surface layer, which is adjacent to a first surface of an intermediate layer;at least one intermediate layer, which comprises the first surface and a second surface and is arranged between the upper surface layer and a lower surface; andat least one lower surface layer, which is adjacent to the second surface of the intermediate layer;wherein material surface compatibility difference is used to pull open a surface gap through applying an extension process without application of hot pressing so that the elastomeric film composite is made to have a embossed surface structure in the form of cloth.2. The elastomeric film composite according to claim 1 , wherein the upper surface layer claim 1 , the intermediate layer claim 1 , or the lower surface layer is of an elastic material of which a type is an elastic non-porous film claim 1 , an elastic microporous film claim 1 , an elastic perforated film claim 1 , or an elastic non-woven fabric.3. The elastomeric film composite according to claim 1 , wherein the upper surface layer claim 1 , the intermediate layer claim 1 , or the lower surface layer comprises an elastic material that is selected as Hytrel claim 1 , TPU claim 1 , SEBS claim 1 , SIS claim 1 , SBS claim 1 , polypropylene elastomer claim 1 , polyethylene elastomer claim 1 , elastic nylon claim 1 , or a mixture of the above materials.4. The elastomeric film composite according to claim 1 , wherein the upper surface layer claim 1 , ...

METHOD AND APPARATUS FOR EXTRUDING BLOWN FILM WITH A CONTROLLED THICKNESS PROFILE

A method of producing a blown film with a controlled thickness profile, comprises the steps of: extruding molten plastic through an annular extrusion die; cooling the molten plastic using an annular blower around the extrusion die, positioning one or more sources of supplemental air at one or more desired circumferential positions about the annular extrusion die and adjacent to the extruded molten plastic, the annular blower and the one or more sources of supplemental air being operated to supply cooling air to the molten plastic between the annular extrusion die and the frost line where the molten plastic solidifies; and controlling the one or more sources of supplemental air to form one or more areas of increased thickness along a circumferential thickness profile of the blown film, the one or more areas of increased thickness having a thickness that is greater than an average thickness of the circumferential profile. 1. A method of producing a blown film with a controlled thickness profile , comprising the steps of:extruding molten plastic through an annular extrusion die;cooling the molten plastic using an annular blower that supplies a consistent supply of air around a circumference of the extrusion die, the molten plastic solidifying at a frost line axially spaced from the extrusion die;positioning one or more sources of supplemental air at one or more desired circumferential positions about the annular extrusion die and adjacent to the extruded molten plastic, the annular blower and the one or more sources of supplemental air being operated to supply cooling air to the molten plastic between the annular extrusion die and the frost line; andcontrolling the one or more sources of supplemental air to form one or more areas of increased thickness along a circumferential thickness profile of the blown film, the one or more areas of increased thickness having a thickness that is greater than an average thickness of the circumferential profile.2. The method of claim ...

METHOD OF MANUFACTURING A STRAINABLE THERMOPLASTIC FILM MATERIAL, PRODUCT RESULTING THEREFROM, AND APPARATUS TO CARRY OUT THE METHOD

A pattern of embossment is made by a method producing short linear, mutually parallel bosses not directly formed by indentation, but formed by first making continuous, mutually parallel fine pleats or waves, and then interrupting this configuration at intervals by localized shrinkage. 11. A method of manufacturing a thermoplastic film which exhibits rubberlike strain properties mainly in one direction () comprising the steps of:extruding or casting a film,{'b': 1', '1, 'stretching the film below its melting range so that the entire film is oriented or an area of the entire film is oriented, where the stretching has a component in the direction () to make the film shrinkable in the direction (),'}{'b': '1', 'simultaneously or subsequently, giving the film or the film area a pleated or waved shape having an average pitch of pleating or an average wavelength of the waves is 5 mm or less, whereby the extension of the pleats or waves is perpendicular to the direction (),'}{'b': 1', '1', '1, 'heating the film or the film area in a pattern comprising regions (A) and allowing the film or the film area to shrink in the pattern along the direction (), while a shrinkage perpendicular to the direction () is prevented by a holding means, if the film or the film area tends to shrink in the direction perpendicular to the direction () so that the regions (A) become flattened, while unheated film regions (B) of the film or the film area remain pleated or waved where the regions (B) are discontinuous or disrupted.'}2. The method according to claim 1 , wherein the heating is carried out by a heated roller having protruding surface portions corresponding to the regions (A).3. The method according to claim 1 , wherein the average pitch of pleating or the average wavelength of the waves is at the highest 3 mm4. The method according to claim 1 , wherein the average pitch of pleating or the average wavelength of the waves is at the highest 2 mm.5. The method according to claim 1 , wherein ...

METHOD OF PRODUCING MICROPOROUS PLASTIC FILM

A method of producing a microporous film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on a drum; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film, wherein drawing is performed by a draw ratio greatest among drawing in the sheet conveying direction, and a ratio of travelling speed of the clip of the tenter at a most upstream side in the sheet conveying direction to a peripheral speed of the roller (B) is −3% to +3%. 15.-. (canceled)6. A method of producing a microporous plastic film comprising:kneading a diluent and a polyolefin resin with an extruder;discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape;cooling and solidifying the sheet discharged from the die lip on a drum;reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction;cooling the sheet drawn in the sheet conveying direction;gripping both ends of the sheet with clips;introducing the sheet into a tenter; andwashing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film, whereindrawing between a roller (B) at a most downstream side in the sheet conveying direction among the rollers and a roller (A) which is adjacently upstream of the roller (B) in the sheet conveying direction and is driven by a motor is performed by a draw ratio greatest among drawing in the sheet conveying direction, anda ratio of travelling speed of the clip of the tenter at a most upstream side in the sheet conveying direction to a peripheral speed of the roller (B) is ...

ABRASION RESISTANT POLYESTER FIBER AND WOVEN/KNITTED PRODUCT

Provided is an abrasion-resistant polyester fiber, which has, in particular, a strength within a specific range, anelongation within a specific range and a Young's modulus falling within a specific rangein a specific elongation range on a stress-strain curve, to improve the abrasion resistance of a woven/knitted product for clothing using, in particular, a fine size polyester fiber. The polyester fiber is an abrasion-resistant polyester fiber comprising ethylene terephthalate as a main repeating unit, characterized by satisfying the following requirements: (1) the fineness being from 8 dtex to 200 dtex inclusive; (2) the single yarn fineness being from 1.0 dtex to 4.0 dtex inclusive; (3) the breaking strength being 3.5 cN/dtex or greater; (4) the breaking elongation being from 20% to 50% inclusive; and (5) the minimum differential Young's modulus being 20 cN/dtex or less in an elongation range of from 2% to 5% inclusive on a stress-strain curve of the fiber. 118-. (canceled)17. A method for producing an abrasion resistant polyester fiber comprising ethylene terephthalate in 95% by mole or more , as a repeating unit , characterized by satisfying the following requirements (1) to (5):(1) a fineness is 8 dtex to 200 dtex inclusive;(2) a single yarn fineness is 1.0 dtex to 4.0 dtex inclusive;(3) a breaking strength is 3.5 cN/dtex or higher;(4) a breaking elongation is 20% to 50% inclusive; and(5) a minimum differential Young's modulus of region having an elongation of 2% to 5% inclusive in a stress-strain curve of the fiber, is 20 cN/dtex or lower, the methd_comprising the following steps of:melt spinning a polyester having a limiting viscosity of 0.70 dl/g to 1.30 dl/g inclusive;performing drawing treatment under a draw ratio of 85% to 85% inclusive of the limiting draw ratio; andperforming relaxation heat treatment at a heat treatment temperature of 120° C. to 220° C. inclusive, and a relaxation ratio of 5% to 15% inclusive.18. The method according to claim 17 , ...

Nylon 66 hollow fiber, method and equipment for manufacturing the same

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

METHOD FOR MANUFACTURING MICROPOROUS FILM AND MICROPOROUS FILM

The present invention provides a method for producing a microporous film, including: preparing a resin composition containing polypropylene (PP) as a resin component and containing from 0.01 to 20 parts by weight of a chemically modified cellulose or chemically modified cellulose nanofiber per 100 parts by weight of the resin component and from 0.01 to 3 parts by weight of a β-crystal nucleating agent per 100 parts by weight of the resin component; melt-molding the resin composition into a film-like material in which the crystal phase of a polypropylene component in the resin composition is substantially a β-crystal phase, and subsequently stretching the film-like material at a temperature of 60 to 160° C., and provides a microporous film. 113.-. (canceled)14. A method for producing a microporous film , the method comprising:melt-molding a resin composition comprising a resin component comprising polypropylene, from 0.01 to 20 parts by weight of a chemically modified cellulose or chemically modified cellulose nanofiber per 100 parts by weight of the resin component, and from 0.01 to 3 parts by weight of a β-crystal nucleating agent per 100 parts by weight of the resin component, into a film-like material in which a crystal phase of a polypropylene component in the resin composition has a β-crystal forming ability of 60% or more; andsubsequently stretching the film-like material at a temperature of 60 to 160° C.,wherein the resin component comprising polypropylene is a resin comprising isotactic polypropylene having a melt flow rate of 1 to 50 g/10 min (230° C.) and a pentad fraction of 80 to 98%, and is a resin comprising polypropylene having a molecular weight of 100,000 or more and Mw/Mn of 2 to 10, andthe stretching is uniaxial or biaxial stretching.15. A method for producing a microporous film , the method comprising:melt-molding a resin composition comprising a resin component comprising polypropylene and a chemically modified cellulose or chemically modified ...

Apparatus and Method for Cooling Plastic Film Tube in Blown Film Process

The present invention is directed to an apparatus for differential cooling of a plastic film tube. The apparatus and method includes the use of a blown film extrusion die that extrudes a plastic film tube upward. An air cooling system applies cooling air across one or more surfaces of the plastic film tube. One or more throttling valves are coupled to a pressurization pump that provides a pressurized working fluid, preferably water. The throttling valves are positioned to project the pressurized working fluid from outlets of the throttling valves towards circular arcs of the plastic film tube, the circular arcs of the plastic film tube being less than the circumference of the plastic film tube to provide a blown film tubular plastic film with controlled gauge variation. 110-. (canceled)11. A method of differential cooling for increasing a film thickness along a first circular arc of a plastic film tube comprising:extruding a plastic film tube out of a blown film extrusion die,applying cooling air from an air cooling system across one or more surfaces of the plastic film tube,supplying a pressurized working fluid to one or more throttling valves,positioning the one or more throttling valves to project the pressurized working fluid towards the first circular arc of a first circumference of the plastic film tube and not to project the pressurized working fluid towards a remainder of the first circumference of the plastic film tube that excludes the first circular arc, andthe method devoid of positioning any throttle valve to project pressurized working fluid towards the remainder.12. The method of further comprising: 'wherein evaporation of the pressurized working fluid decreases an air temperature adjacent the circular arc of the plastic film tube thereby resulting in a mean film thickness of the plastic film along the first circular arc of the plastic film being at least 25% greater than a mean film thickness of the plastic film tube along the first circumference of ...

VAPOR-PERMEABLE, SUBSTANTIALLY WATER-IMPERMEABLE MULTILAYER ARTICLE

This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that includes a nonwoven substrate and a film supported by the nonwoven substrate. The film includes a polyolefin, a nanoclay, and a pore-forming filler. 123-. (canceled)24. A method of making an article , comprising:forming a laminate comprising a nonwoven substrate and a film supported by the nonwoven substrate, the film comprising a polyolefin, a nanoclay, and a pore-forming filler; andstretching the laminate to form pores in the film and to provide the article.25. The method of claim 24 , wherein forming the laminate comprises extruding the film onto the nonwoven substrate.26. The method of claim 24 , wherein the elevated temperature is at least about 30° C.27. The method of claim 24 , wherein the laminate is stretched in the machine direction.28. The method of claim 24 , wherein the laminate is stretched in the cross-machine direction.29. The method of claim 24 , wherein the laminate is stretched by a method selected from the group consisting of ring rolling claim 24 , tentering claim 24 , embossing claim 24 , creping claim 24 , and button-breaking.30. The method of claim 24 , further comprising embossing the laminate before or after stretching the laminate.31. The method of claim 24 , further comprising bonding randomly disposed polymeric fibers to produce the nonwoven substrate before forming the laminate.3235-. (canceled)36. The method of claim 24 , wherein the nanoclay comprises particles having an average aspect ratio of from 200 to about 500.37. The method of claim 24 , wherein the nanoclay has an average thickness of from about 0.5 nm to about 2 nm.38. The method of claim 24 , wherein the film comprises from about 0.1% by weight to about 20% by weight of the nanoclay.39. The method of claim 24 , wherein the polyolefin comprises a polyethylene claim 24 , a polypropylene claim 24 , or a copolymer thereof.40. The method of claim 39 , wherein ...

METHOD OF PRODUCING MICROPOROUS PLASTIC FILM

A method of producing a microporous plastic film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on one or plurality of cooling drums; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; and driving a nip roller with a motor, the nip roller pressing a sheet interposing between the nip roller and at least one of the rollers. 15-. (canceled)6. A method of producing a microporous plastic film comprising:kneading a diluent and a polyolefin resin with an extruder;discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape;cooling and solidifying the sheet discharged from the die lip on one or plurality of cooling drums;reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction;cooling the sheet drawn in the sheet conveying direction;gripping both ends of the sheet with clips;introducing the sheet into a tenter;washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; anddriving a nip roller with a motor, the nip roller pressing a sheet interposing between the nip roller and at least one of the rollers.7. The method according to claim 6 , further comprising driving with a motor a nip roller pressing a sheet interposing between the nip roller and at least one of the rollers claim 6 , the rollers heating the sheet in a process upstream from the drawing with the rollers in the sheet conveying direction.8. A microporous plastic film produced by the method according to .9. A battery separator comprising the ...

CALIBRATION CAGE FOR THE PRODUCTION OF BLOWN FILMS

A calibration cage for the production of a blown film is provided. It has a supporting structure and a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of the supporting structure at the vertices of a regular polygon, each frame carrying a vertical rod rotatable with respect thereto which in turn carries at least one element for guiding a blown film, each vertical rod being connected to the vertical rods adjacent thereto through connection elements that are rigid in the horizontal plane yet have a length variable in the plane, each connection element being pivoted between two horizontal pivots each of which forms with a vertical radial plane having the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle (α) of the regular polygon. 118.-. (canceled)13. A calibration cage for the production of a blown film , said calibration cage comprising:a) a supporting structure;b) a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of said supporting structure at the vertices of a regular polygon;c) a vertical rod on each of said frames, each rod being carried by one of said frames and being rotatable with respect thereto; andd) at least one element on each of said vertical rods, each element being configured to guide a blown film,wherein each of said vertical rods is connected to at least one of the vertical rods adjacent thereto through at least one connection element that is rigid in the horizontal plane yet has a length variable in said plane through the relative motion of at least two parts thereof, said at least one connection element being pivoted between said adjacent vertical rods through two horizontal pivots, the axis of rotation of each of said horizontal pivots forming with a vertical radial plane comprising the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle of said regular polygon. ...

Heat-shrinkable polyester film and package

The invention provides a heat-shrinkable polyester film in which the differences in physical properties in the width direction are reduced even if the film has a small thickness. The heat-shrinkable polyester film has a main shrinkage direction in a width direction of the film and has (1) a thickness of 6-27 μm; (2) a maximum value of the molecular orientation angle of 5 degrees or less; (3) a hot-water shrinkage at 90° C. in the width direction of the film 40-85%; (4) a difference between a maximum value and a minimum value of the hot-water shrinkage at 90° C. in the width direction of the film of 2% or less; and (5) a difference between a maximum value and a minimum value of the maximum shrinkage stress at 90° C. in the width direction of the film of less than 0.3 MPa.

SYNTHETIC SPIDER SILK PROTEIN COMPOSITIONS AND METHODS

A method for solubilizing recombinant spider silk proteins in an aqueous solutions, where the method includes mixing recombinant spider silk proteins with water to form a mixture and heating the mixture in a closed vessel to form a solution. 1. A method of solubilizing one or more recombinant spider silk proteins in an aqueous solution , comprising:mixing the one or more recombinant spider silk proteins with water to form a mixture in a sealed container;heating the mixture to form a solution.2. The method of claim 1 , wherein the heating is performed with microwave irradiation.3. The method of claim 1 , further comprising sonicating the mixture.4. The method of claim 1 , further comprising sonicating the solution.5. The method of claim 1 , further comprising centrifuging the solution.6. The method of claim 1 , further comprising providing additives for reducing gel formation in the solution.7. The method of claim 6 , wherein the additives are selected from the group consisting of: an acid claim 6 , a base claim 6 , free amino acids claim 6 , surfactants claim 6 , and combinations thereof.8. The method of claim 6 , wherein the additives are selected from the group consisting of: propionic acid claim 6 , formic acid claim 6 , acetic acid claim 6 , ammonium hydroxide claim 6 , L-arginine claim 6 , L-glutamic acid claim 6 , β-mercaptoethanol claim 6 , dithiothreitol claim 6 , and combinations thereof.9. The method of claim 1 , wherein the one or more recombinant spider silk proteins are selected from the group consisting of: M4 claim 1 , M5 claim 1 , MaSP1 claim 1 , a MaSP1 analogue claim 1 , MaSP2 claim 1 , an MaSP2 analogue claim 1 , and combinations thereof.10. The method of claim 1 , wherein the ratio of the one or more recombinant spider silk proteins to water in the mixture is from 1:10 to 1:2.11. The method of claim 1 , further comprising obtaining a recombinant spider silk protein fiber from the mixture.12. The method of claim 11 , further comprising stretching ...

POLYESTER FILM AND MANUFACTURING METHOD THEREOF

The present invention relates to a transfer polyester film. More particularly, the present invention relates to a transfer polyester film and a method for manufacturing the same, wherein the transfer polyester film has a coating layer with an excellent releasing property so that at the time of forming a hard coating layer in order to impart a surface gloss to an interior product, the transfer polyester film may be attached to a surface of the hard coating layer so as to allow the surface of the hard coating layer to be smoothly formed in a step of coating and curing a hard coating solution and may be removed after completely curing the hard coating layer. 2. The polyester film of claim 1 , wherein the coating layer contains 10 to 90 wt % of the particles.3. The polyester film of claim 1 , wherein the particles have an average particle size of 10 to 200 nm and are any one or at least two inorganic particles selected from the group consisting of silica claim 1 , alumina claim 1 , zirconia claim 1 , and titania particles.4. The polyester film of claim 1 , wherein the silane coupling agent represented by Chemical Formula 1 is any one or at least two selected from the group consisting of [3-(2-aminoethylamino)propyl]trimethoxysilane claim 1 , N-(2-aminoethyl-3-aminopropyl)triethoxysilane claim 1 , vinyltrimethoxysilane claim 1 , vinyltriethoxysilane claim 1 , 3-acryloxypropyltrimethoxysilane claim 1 , 3-acryloxypropyltriethoxysilane claim 1 , 3-(meth)acryloxypropyltrimethoxysilane claim 1 , 3-(meth)acryloxypropyltriethoxysilane claim 1 , 3-(meth)acryloxypropyltripropoxysilane claim 1 , 3-aminopropyltrimethoxysilane claim 1 , and 3-aminopropyltriethoxysilane.5. The polyester film of claim 1 , wherein the aqueous coating composition further contains an alcohol based solvent or water.6. The polyester film of claim 1 , wherein when a pH of the particle is alkaline claim 1 , the aqueous coating composition contains a pH adjusting agent for adjusting a pH of the entire ...

POLYESTER FILM AND ELECTRICAL INSULATION SHEET MANUFACTURED USING SAME, WIND POWER GENERATOR, AND ADHESIVE TAPE

A polyester film provided with a layer (a P layer) that contains a crystalline polyester (A) also contains plate-like particles (b) each having an aspect ratio of 2 or more and/or needle-like particle (b) each having an aspect ratio of 2 or more, wherein the Young's modulus of the polyester film is 2 GPa or more and the values of Wb and V/Wb are 10 or more and 1 or less, respectively, wherein Wb (% by mass) represents the total content of the plate-like particles (b) and the needle-like particles (b) in the P layer, and V (% by volume) represents the porosity in the P layer. 114-. (canceled)151212. A polyester film provided with a layer (a P layer) that contains a crystalline polyester (A) and also contains plate-like particles (b) each having an aspect ratio of 2 or more and/or needle-like particles (b) each having an aspect ratio of 2 or more , wherein the Young's modulus of the polyester film is 2 GPa or more and the values of Wb and V/Wb are 10 or more and 1 or less , respectively , wherein Wb (% by mass) represents the total content of the plate-like particles (b) each having an aspect ratio of 2 or more and the needle-like particles (b) each having an aspect ratio of 2 or more in the P layer , and V (% by volume) represents the porosity in the P layer.1612. The polyester film according to claim 15 , wherein the plate-like particle (b) and the needle-like particle (b) have on their surfaces a substituent reactive with the crystalline polyester (A) (hereinafter claim 15 , the substituent is called reactive substituent (a)) claim 15 , and the amount of the reactive substituent (a) on a unit surface area of the particle (B) is not smaller than 0.2×10mol/mand not greater than 1.4×10mol/m.1712211122. The polyester film according to claim 15 , wherein the P layer comprises both the plate-like particle (b) and the needle-like particle (b) claim 15 , and a Wb/Wb value is not smaller than 0.7 and not greater than 9 claim 15 , with the content of the plate-like particle ...

Biaxially oriented film having a particle-containing porous layer

The invention relates to a biaxially oriented single-layer or multilayer porous film which comprises at least one porous layer and said layer comprises at least one propylene polymer, at least one β-nucleating agent and particles, said particles having a melting point of over 200° C. and at most an agglomerate or at most a particle having a particle size of >1 μm being detectable on a REM recording of a film sample of 10mm2.

Thermoplastic Elastomeric Films and the Method of Manufacturing Same

A process for forming a film for dynamically vulcanized alloy comprising at least one elastomer dispersed within a thermoplastic resin domain wherein the film is characterized by low shrinkage rates after completion of the formation of the extruded film. The film has a shrinkage rate, measured at not earlier than 96 hours after formation of the film, of less than 1.5% relative to the film width as measured just after film formation. During formation of the film, the extruded film is subjected to a cooling rate of less than 97° C. per second and the frost line of the extruded film is greater than 135 mm. 2. The process of film formation as recited in claim 1 , wherein the film is characterized by having a width shrinkage value of less than 2% relative to a width of the extruded film just after completion of the film formation process claim 1 , the width shrinkage value calculated as the difference in the film width 1) as measured just after completion of the film formation process and 2) as measured not earlier than 96 hours after completion of the film formation process.3. The process of film formation as recited in claim 1 , wherein the blow up ratio is not more than 2.8 and the draw down ratio of the extruded film is not more than 6.0.4. The process of film formation as recited in claim 1 , wherein the film is co-extruded with an adhesive coating on at least one surface of the extruded alloy.5. The process of film formation as recited in claim 1 , wherein the extruded film is a multiple layer extrusion product.6. The process of film formation as recited in claim 1 , wherein during the distance the extruded film traverses between the extruder head to the frost line claim 1 , the stored energy of the elastomeric particles in the film is released.7. The process of film formation as recited in claim 1 , wherein the at least one elastomer is a curable elastomer derived at least one Cto Cisoolefin monomer and at least one multiolefin monomer and the at least one ...

BLOCKED SHRINK BUNDLING FILM

Multi-layered blocked shrink bundling films include at least one layer that contains a blocking polymer. Materials and methods for forming multi-layered blocked shrink bundling films via a blown film extrusion process are described. 1. A process for making a blocked shrink film , the process comprising the steps ofextruding two or more extrudable materials through a die to form a molten tubular film, wherein at least a first extrudable material comprises a first polyolefin and is configured to form at least a first layer of the molten tubular film, and wherein at least a second extrudable material comprises a blocking polymer and is configured to form at least a second layer of the molten tubular film,injecting the molten tubular film with air to form a film bubble, wherein an interior surface of the film bubble is provided by the second layer of the molten tubular film,drawing the film bubble away from the die, andcollapsing the film bubble upon itself, such that a first interior surface of the film bubble adheres to an adjacent second interior surface of the film bubble via blocking, thereby forming the blocked shrink film.2. The process of wherein the first polyolefin comprises low density polyethylene claim 1 , high density polyethylene claim 1 , and metallocene polyethylene.3. The process of wherein the blocking polymer comprises at least one of very low density polyethylene and ethylene-vinyl acetate.4. The process of further comprising the step of extruding three or more extrudable materials to form the molten tubular film claim 1 , wherein at least a third extrudable material comprises a second polyolefin and is configured to form at least a third layer of the molten tubular film claim 1 , and wherein the third layer is disposed between the first layer and the second layer claim 1 , wherein the second polyolefin comprises linear low density polyethylene claim 1 , high density polyethylene claim 1 , low density polyethylene claim 1 , and calcium carbonate.5. ...

Method for Evaluating at Least One Industrial Process

The invention relates to a method () for evaluating at least one industrial process for the film production of a film and/or for the further processing using the film, comprising at least one production device () which is operated for the production of the film, and at least one further processing device () which is operated for further processing using the film. 131-. (canceled)32. A method for evaluating at least one industrial process for at least the film production of a film or further processing with the film , withat least one production device, which is operated for the film production of the film, andat least one further processing device, which is operated for the further processing with the film,wherein determining production process data on the production device in the film production,', 'determining further processing process data on the further processing device in the further processing,', 'carrying out of data transmission for the provision of at least the production process data or of the further processing process data,', 'determining a correlation between the production process data and the further processing process data, wherein at least one evaluation criterion is assessed, so that an evaluation result is established,', 'at least providing the evaluation result or the production process data or the further processing process data., 'the following steps are carried out accompanying the process33. The method according to claim 32 ,wherein selecting the production process data relevant for at least the further processing, or the correlation, or the evaluation result, so that a selection is established,', 'providing the selection for the further processing,', 'adapting the further processing based on the selection., 'in the data transmission, the production process data are at least provided or are permanently stored, at least product-related or order-related, for a respective product of the film production, wherein preferably at least the product- ...

PROCESS FOR FORMING FILM

A method of making and using a stretchable film includes an extruding operation where molten plastics materials are extruded into a tube and a blowing operation in which the tube is blown to expand a diameter of the tube and form a blown-film tube. The blown-film tube is slit to form a film sheet that may be deformed elastically in a machine direction. 1. A method of making and using a stretchable film sheet , the method comprising the steps ofextruding a tube made of plastics materials including polyvinyl chloride,blowing the tube to establish a blown-film tube having a first temperature and a first length,heating the blown-film tube to provide a heated-film tube having a relatively greater second temperature,elongating the heated-film tube by applying force to the heated-film tube in a first direction to provide an oriented-film tube having a relatively greater second length,cooling the oriented-film tube to a third temperature to provide a cooled-film tube and the third temperature is less than the second temperature,slitting the cooled-film tube to provide a stretchable film sheet, anddeforming elastically the stretchable film sheet in a second direction transverse to the first direction.2. The method of claim 1 , wherein the blown-film tube is passed around a heated roller during the heating step.3. The method of claim 2 , wherein the heated roller heats the blown-film tube to the second temperature and the second temperature is above a softening temperature of the plastics materials including polyvinyl chloride.4. The method of claim 3 , wherein the second temperature is a temperature in a range of about 120 degrees Fahrenheit to about 125 degrees Fahrenheit.5. The method of claim 2 , wherein the heated roller is heated to a temperature in a range of about 100 degrees Fahrenheit to about 220 degrees Fahrenheit.6. The method of claim 2 , wherein the heated roller is heated to a temperature in a range of about 120 degrees Fahrenheit to about 200 degrees ...

Transparent films

The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270° C. or a blend of the semi-crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt. %, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340° C., and wherein the film or a part of the extrudate product has a haze of less than 12% and a light transmittance, of at least 88% measured with the method according to ASTM D1003A.

SELF-ADHERED SINGLE-SIDED SLIP-RESISTANT MATERIAL

A single-sided, slip resistant, self-adhesive material is produced using a blown film process which produces a film having an interior layer capable of being treated or coated to accept a pressure sensitive adhesive, a middle layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent to produce a single-sided slip resistant material. A number of in-line rollers are optionally provided after a pair of nip rollers, which form part of a machine direction orienter (MDO) that is used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies) the film prior to the film being coated on one side with a pressure sensitive adhesive. 112-. (canceled)13. A method of making single-sided , anti-slip film layers , each anti-slip film payer having a rough , slip-resistant , open-celled outer surface on one film side thereof , said method comprising the following acts:using a film blowing machine to vertically coextrude a multilayer film from a circular die to form a tube having first and second sides, wherein the tube comprises at least three coextruded layers of film including an inner layer, an outer layer and a middle layer, said outer layer comprising a plurality of gas bubbles resulting from addition of a blowing agent to its film making material provided to said circular die, and said blowing agent causing said gas bubbles to form in said outer layer as said outer layer is coextruded from said circular die;drawing the resulting coextruded multilayer film tube vertically and upwardly away from the circular die at a predetermined speed;at a predetermined distance from the circular die, collapsing the coextruded multilayer film tube during said drawing by passing the film tube between at least two rollers positioned in close proximity to one another so that a first roller of said at least two rollers contacts said first side of said coextruded ...

High-Strength Multi-Component Suture

A method for making an expanded, and optionally multi-component and/or colored PTFE monofilament is disclosed. The method includes forming a first paste by mixing a PTFE powder with a hydrocarbon solvent; forming an extrusion preform by pressing the first paste into a form; curing the extrusion preform by exposing the extrusion preform to a first temperature for a first time duration; forming a green monofilament by extruding the first paste through a die; expanding the green monofilament by exposing the green monofilament to a second temperature for a second time duration, the second time duration occurring after the first time duration; stretching the green monofilament substantially along a longitudinal axis of the green monofilament, the stretching the green monofilament occurring after the expanding the green monofilament; and sintering the green monofilament after the stretching the green monofilament. The method may include doing all or some of the expanding, stretching and sintering steps simultaneously. 1. A method for making an expanded polytetrafluoroethylene (PTFE) monofilament , the method comprising:forming a first paste by mixing a PTFE powder with a hydrocarbon solvent, the first paste including less than about 16% of the hydrocarbon solvent by weight;curing the first paste by exposing the first paste to a first temperature for a first time duration;forming an extrusion preform by pressing the first paste into a form;forming a green monofilament by extruding the first paste through a die;expanding the green monofilament by exposing the green monofilament to a second temperature for a second time duration, the second time duration occurring after the first time duration;stretching the green monofilament substantially along a longitudinal axis of the green monofilament, the stretching the green monofilament occurring after the expanding the green monofilament; andsintering the green monofilament after the stretching the green monofilament.2. The method ...

DEVICE AND METHOD FOR GUIDING A BLOWN FILM

The invention relates to a guiding device for guiding a blown film between a film blowing die and a take-off roller device, comprising at least two lateral guides located opposite one another for laterally guiding the blown film, wherein at least one lateral guide is provided with a first guide segment and a second guide segment, which are connected to one another in an articulated manner. At least one lever kinematics is provided, which is in drive connection with a drive device, and which is interconnected with the two guide segments such that when the drive device is actuated by way of the lever kinematics, the angles of attack (αa, αe) of the two guide segments to the conveyance direction (F) of the blown film can be varied. 1. Guidance device for guiding a blown film between a film blowing head and a take-off roller device , comprising at least two opposing lateral guidances for the lateral guidance of the blown film characterized in that , at least one lateral guidance comprises a first guidance segment and a second guidance segment , jointly connected to each other , wherein at least one lever kinematics is intended , which comprises a plurality of at least two levers and is in actuation connection with a single common drive device and with both guidance segments in a way , that during actuation the drive device the angles of attack (α , α) of both guidance segments are variable via the lever kinematics towards the conveyance direction (F) of the blown film.2. Guidance device according to claim 1 , characterized in that the drive device comprises at least one slide which is translatory movably mounted and with which the lever kinematics is in gear connection at at least one position claim 1 , particularly at two positions.3. Guidance device according to claim 1 , characterized in that at least a guidance rail is intended claim 1 , in which at least one guidance lever of the lever kinematics is translatory movably mounted.4. Guidance device according to claim ...

RESIN-COATED METAL SHEET FOR CONTAINER

A resin-coated metal sheet for containers that has excellent content releasability is provided. The resin-coated metal sheet includes a resin layer (A) and a resin layer (B). The resin layer (A) has a multilayer structure and is disposed on a side which, after the metal sheet is formed into a container, becomes the inner side of the container. The resin layer (B) is disposed on a side that becomes the outer side of the container. The resin layer (A) contains polyester as a main component and includes an uppermost resin layer (a1). A Raman band intensity ratio (I/I) on the surface of the resin layer (a1) is 0.6 to 0.9. The resin layer (B) includes polyester (I) composed mainly of polyethylene terephthalate and a polyester (II) composed mainly of polybutylene terephthalate. A Raman band intensity ratio on the surface of the resin layer (B) is 0.8 to 1.0. 1. A resin-coated metal sheet for containers , comprising:a metal sheet;a resin layer (A) having a multilayer structure and containing a polyester as a main component, the polyester being a polymer of an acid component and a glycol component, the resin layer (A) being disposed on a side which, after the metal sheet is formed into a container, becomes an inner side of the container; anda resin layer (B) containing a polyester as a main component, the resin layer (B) being disposed on a side that becomes an outer side of the container, i) the acid component, which is a constitutional unit of the polyester contained as the main component of the resin layer (A), comprises a terephthalic acid unit in an amount of at least 85 mol %,', 'ii) the resin layer (A) includes an uppermost resin layer (a1) that is configured to be in contact with contents of the container, the uppermost resin layer (a1) containing a wax component in an amount of 0.10 to 2.0 mass % with respect to a mass of the uppermost resin layer (a1) and having a thickness within a range of 0.5 μm or more and 10 μm or less,', {'sub': 2968', '3085', '2968', '3085, ...

Infrared Transmissive Protective Cover, Method for Manufacturing the Same and Monitoring Method Using the Same

To provide a practical infrared transmissive protective cover capable of detecting a heating abnormality of an internal heating element and the like by visual observation and by using infrared rays. The infrared transmissive protective cover includes a light transmission section, the light transmission section is made of a resin sheet containing a resin composition, and a total light transmittance of the light transmission section in a visible light region is 70% or more, and an average infrared transmittance in a wavelength range of 8 to 14 μm is 5% or more. 1. A method of manufacturing an infrared transmissive protective cover , comprising a light transmission section , whereinthe light transmission section is made of a resin sheet containing a resin composition, anda total light transmittance of the light transmission section in a visible light region is 70% or more, and an average infrared transmittance of the light transmission section in a wavelength range of 8 to 14 μm is 5% or more, andthe resin composition comprises a polyolefin resin.2. The method of manufacturing the infrared transmissive protective cover according to claim 1 , whereinthe average infrared transmittance of the light transmission section in the wavelength range of 8 to 14 μm is 20% or more.3. The method of manufacturing the infrared transmissive protective cover according to claim 1 , whereina haze value of the light transmission section is 40% or less.4. The method of manufacturing the infrared transmissive protective cover according to claim 1 , whereina thickness of the light transmission section is from 0.2 to 3 mm.5. The method of manufacturing the infrared transmissive protective cover according to claim 1 , whereina falling weight impact strength of the light transmission section is 1 J or more.6. The method of manufacturing the infrared transmissive protective cover according to claim 1 , whereinthe resin composition comprises a thermoplastic resin.7. The method of manufacturing the ...

Polymeric Films and Methods to Manufacture The Same

In one aspect, the disclosure relates to multilayer polymeric films comprising: at least one layer A, and at least one layer B; wherein at least one of layers A and B further comprises at least one copolymer of propylene derived units and one or more C, and Cto Calpha-olefin derived units, the copolymer having: (a) a C, and/or Cto Calpha-olefin derived unit content in the range of about 5 to 30 weight %; (b) an intermolecular composition distribution of greater than or equal to 75%; (c) a Tm in the range of from about 25° C. to about 110° C.; (d) a Hf in the range of from about 0.5 to about 70 J/g; (e) a Mw/Mn in the range of from about 1.2 to about 4.5; and (f) a MFR in the range of from about 0.1 to about 40 g/10 min; and wherein the multilayer polymeric film has a seal strength greater than 6.25 N/cm, at a dwell time of 0.75 seconds. 1. A multilayer polymeric film comprising: (1) a propylene derived unit content of greater than 90 weight %, based on the weight of the first polymeric resin;', '(2) a peak melting temperature (Tm) of greater than 120° C.; and', '(3) a melt flow rate (MFR) in the range of from about 0.1 to about 100 g/10 min; and, 'at least one layer A, comprising a first polymeric resin, the first polymeric resin comprising propylene derived units and having [{'sup': '3', '(a) a density in the range of about 0.905 to about 0.945 g/cm;'}, '(b) an ethylene derived unit content of greater than 50 weight %, based on the weight of the second polymeric resin;', '(c) a composition distribution breadth index (CDBI) of greater than 50%;', '(d) a melt index (MI) in the range of about 0.1 to about 5.0 g/10 min; and', '(e) a branching index (g′) of greater than about 0.7; and, 'at least one layer B, comprising a second polymeric resin, the second polymeric resin comprising ethylene derived units and having{'sub': 2', '4', '10, 'claim-text': [{'sub': 2', '4', '10, '(a) a C, and/or Cto Calpha-olefin derived unit content in the range of about 5 to 30 weight %;'}, ...

METHOD OF MANUFACTURING POLYMER FILM AND POLYMER FILM STRETCHING APPARATUS THEREFOR

A method of manufacturing a polyimide film includes: extruding a polyimide film including polyimide and a solvent; first drying the extruded polyimide film; stripping the first-dried polyimide film; second drying the stripped polyimide film to remove a residual solvent in the polyimide film; and stretching the second-dried polyimide film, wherein an amount of the residual solvent in the second-dried polyimide film is equal to or less than about 10 weight percent. 1. A method of manufacturing a polyimide film , the method comprising:extruding a polyimide film comprising a polyimide and a solvent;first drying the extruded polyimide film;stripping the first-dried polyimide film;second drying the stripped polyimide film to remove a residual solvent in the polyimide film; andstretching the second-dried polyimide film in a width direction,wherein an amount of the residual solvent in the second-dried polyimide film is equal to or less than about 10 weight percent.2. The method of claim 1 , wherein the amount of the residual solvent in the second-dried polyimide film is equal to or less than about 5 weight percent.3. The method of claim 1 ,wherein the second drying comprises stretching the stripped polyimide film in a length direction which is perpendicular to the width direction.4. The method of claim 3 , wherein a stretching ratio of the stretching in the length direction ranges from about 0.95 to about 1.0.5. The method of claim 4 , wherein the stretching ratio of the stretching in the length direction ranges from about 0.965 to about 0.995.6. The method of claim 1 , wherein a temperature in the second drying is greater than a maximum temperature in the first drying and less than a maximum temperature in the stretching.7. The method of claim 6 , whereinthe maximum temperature in the first drying ranges from about 100° C. to about 220° C.,the temperature in the second drying ranges from about 150° C. to about 250° C., andthe maximum temperature in the stretching ranges ...

MICROPOROUS MATERIAL AND A METHOD OF MAKING SAME

A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix. 1. A method for producing a microporous material comprising the steps of:mixing ultra high molecular weight polyethylene (UHMWPE), filler and processing plasticizer together to form a mixture, having a weight ratio of filler to UHMWPE of from 1:9 to 15:1 by weight;wherein the filler constitutes from about 5 percent to about 95 percent by weight of the microporous material;extruding said mixture to form a sheet;calendering said sheet;extracting all or part of said processing plasticizer from said sheet to produce a matrix comprising UHMWPE and said particulate filler, the filler being distributed throughout said matrix, to produce a microporous matrix sheet;stretching said microporous matrix sheet in at least one stretching direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix sheet; andcalendering said stretched microporous matrix sheet.2. The method of claim 1 , wherein the filler constitutes from about 45 percent to about 95 percent by weight of the microporous material.3. The method of claim 1 , wherein the ...

METHOD AND DEVICE FOR MELT-SPINNING, DRAWING, CRIMPING AND WINDING MULTIPLE THREADS

Techniques are directed to melt spinning, drawing, crimping and winding multiple threads. The threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units. In order to obtain identical treatment of all threads within the thread group, the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units. To this end, adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run. 1. Method for melt-spinning , drawing , crimping , and winding a plurality of threads , in which method the threads from a plurality of spinning nozzles are spun beside one another , on at least one godet unit are collectively guided as a thread skein , are drawn , and for crimping are subsequently guided beside one another to a plurality of texturing apparatuses , wherein the threads in a singularized manner and with a plurality of wrappings are guided beside one another on the godet unit , and in which method the threads after running off from the godet unit are guided into the texturing apparatuses in a straight thread run in parallel beside one another.2. Method as claimed in claim 1 , wherein for crimping the threads are each compressed to form a thread plug claim 1 , and in that the thread plugs are guided in parallel beside one another claim 1 , and are dissolved to form crimped threads.3. Method as claimed in claim 2 , wherein the threads after crimping are drawn off in parallel beside one another by a godet unit claim 2 , wherein the threads in a singularized manner and with a ...

Diaphragm for alkaline water electrolysis, alkaline water electrolysis device, method for producing hydrogen, and method for producing diaphragm for alkaline water electrolysis

The diaphragm for alkaline water electrolysis according to the present invention comprises a porous polymer membrane, the porous polymer membrane comprising a polymer resin and hydrophilic inorganic particles. A porosity of the porous polymer membrane is 30% or more and 60% or less, average pore sizes at both surfaces of the porous polymer membrane is 0.5 μm or more and 2.0 μm or less, and a ratio of a mode particle size of the hydrophilic inorganic particles to the average pore size of the porous polymer membrane (mode particle size/average pore size) is 2.0 or more.

ORIENTED POLYPROPYLENE FILM WITH IMPROVED MACHINABILITY

A multi-layer biaxially oriented polypropylene film (BOPP) can include a core layer; an outer functional layer with the functionalities of heat-sealing, winding, printing, or receiving coatings or metallization; and an outer heat-sealable layer with partially crosslinked polydialkylsiloxane to provide excellent slipperiness and machinability. The partially crosslinked polydialkylsiloxane is not detrimental to the metal adhesion and printability of the functional layer; and maintains excellent heat-seal properties, low and consistent COF, and low and consistent hot slip properties. 1. A multilayered polyolefin film comprising:a core layer comprising crystalline polypropylene homopolymer or high crystalline polypropylene;a first outer layer on a side of the core layer comprising thermoplastic polymers; anda second outer layer on a side of the core layer opposite the first outer layer comprising thermoplastic polymers, 0.1-3 wt. % partially crosslinked polydialkylsiloxane particles, and spherical non-migratory anti-blocking particles, wherein the second outer layer is a heat-sealable layer.2. The multilayered polyolefin film of claim 1 , wherein the second outer layer comprises 0.4-1.5 wt. % partially crosslinked polydialkylsiloxane.3. The multilayered polyolefin film of claim 1 , wherein the second outer layer comprises 0.25-1 wt. % partially crosslinked polydialkylsiloxane.4. The multilayered polyolefin film of claim 1 , wherein the core layer comprises 1-25 wt. % of a non-migratory hydrogenated hydrocarbon resin.5. The multilayered polyolefin film of claim 1 , wherein the first outer layer comprises antiblocking and/or slip agents.6. The multilayered polyolefin film of claim 1 , wherein a surface of the first outer layer is discharge-treated.7. The multilayered polyolefin film of claim 1 , wherein the thermoplastic polymers in the second outer layer are selected from the group consisting of copolymers and terpolymers of ethylene claim 1 , propylene claim 1 , and ...

Filament for fused deposit modeling

An apparatus for forming an object by an additive process, commonly referred to as 3-D printing, is provided. The apparatus includes a filament comprising a series of irregularities along the length of the filament, a nozzle depositing a layer of melted material onto a surface and a feeder feeding the filament to the nozzle. A heating element melts the filament and a controller controls the position of the nozzle in a plane to control the configuration of the layer of melted material deposited by the nozzle. Additionally, a method for forming polymer filament used in 3-D printing devices is also provided. The method includes the steps of melting a polymer, selecting an extrusion characteristic calculated to induce a polymer flow instability and extruding the melted polymer using the selected extrusion characteristic to produce an extrusion having distortions created by the polymer flow instability.

Coated polyester film with a permanent antifog coating and transparency of at least 93 %

The present invention relates to a coated polyester film equipped on at least one side with permanent antifog coating. The film of the invention is suitable for the production of greenhouse blinds, and has specific transparency properties, permanent antifog properties and high UV resistance. The invention further relates to processes for the production of the polyester film of the invention, and also to use thereof. 1. A coated polyester film with transparency of at least 93% comprising:at least one base layer B which comprises a thermoplastic polyester and a UV stabilizer;where the polyester film has a first and a second surface, where a permanent antifog coating has been applied on at least one of the surfaces of the polyester film,and wherein the refractive index of the antifog coating is lower than that of the base layer B.2. The polyester film as claimed in claim 1 , wherein the polyester film is a multilayer film and comprises a layer A which has been applied on the base layer claim 1 , or comprises a layer A and a layer C claim 1 , where the base layer B is arranged between the layer A and the layer C claim 1 , and where the layers A and C comprise a thermoplastic polymer and a UV stabilizer.3. The polyester film as claimed in claim 1 , wherein the thickness of the polyester film is at least 10 μm and at most 40 μm.4. The polyester film as claimed in claim 3 , wherein the thickness of the polyester film is at least 14 μm and at most 23 μm.5. The polyester film as claimed in claim 1 , wherein at least 70% by weight of the base layer B consists of the thermoplastic polyester claim 1 , where at least 85 mol % of the thermoplastic polyester consists of ethylene-glycol- and terephthalic-acid-derived units.6. The polyester film as claimed in claim 5 , wherein at least 70% by weight of the base layer B consists of the thermoplastic polyester claim 5 , where at least 90 mol % of the thermoplastic polyester consists of ethylene-glycol- and terephthalic-acid-derived ...

Method of Laminating Absorbable Semi-Crystalline Polymeric Films

The invention relates to novel processes for the lamination of semi-crystalline, high-melting point, low glass transition polymeric films, which are extruded and subsequently laminated on various thermally sensitive substrates to form laminated medical device constructs in a specific time interval to allow low processing temperatures to avoid polymer film and/or substrate degradation or heat-related distortions. Also disclosed are laminated medical device constructs made from such processes. 1. A method of making a laminated medical device construct , comprising:a) extruding a semicrystalline polymer film having a melting point temperature of 140° or higher, a glass transition temperature below 25° C., and a crystallinity, said polymer film being crystallizable at room/ambient conditions;b) laminating the polymer film directly to a thermally sensitive polymeric substrate to form a laminated medical device construct by conducting a thermal/pressure laminating step within about 10 minutes after the film has been extruded wherein the film has a crystallinity of about 10% or less in order to laminate said film onto a substrate at a temperature of about 120° C. or lower, wherein the substrate is not damaged and the film is effectively laminated to the substrate.2. The method of claim 1 , wherein the substrate is selected from the group consisting non-woven claim 1 , woven and mesh.3. The method of wherein the polymer film comprises a polymer selected from the group consisting of copolymers of lactide or glycolide as major components with one or more other components including caprolactone claim 1 , poly (p-dioxanone); trimethylene carbonate (TMC) claim 1 , polyethylene glycol claim 1 , and polyether ester formulations.4. The method of claim 1 , wherein the polymer film comprises a polymer selected from the group consisting of polypropylene claim 1 , polyethylene claim 1 , polyethylene terephthalate claim 1 , and Nylon.5. The method of claim 1 , wherein the polymer film ...

INSULATED CONTAINER AND METHODS OF MAKING AND ASSEMBLING

A process for forming a multi-layer sheet for forming an expanded foam container, the process comprising: extruding a first layer comprising a first polyolefin-based material comprising at least one polypropylene-based polymer and at least one blowing agent; providing a second layer comprising a second polyolefin-based material comprising at least one polypropylene-based polymer onto a first side of the first layer; and expanding the first layer to form the multi-layer sheet comprising an expanded first layer and an unexpanded second layer. 1. A process for forming a multi-layer sheet for forming an expanded foam container , the process comprising:extruding a first layer comprising a first polyolefin-based material comprising at least one polypropylene-based polymer and at least one blowing agent;providing a second layer comprising a second polyolefin-based material comprising at least one polypropylene-based polymer onto a first side of the first layer; andexpanding the first layer to form the multi-layer sheet comprising an expanded first layer and an unexpanded second layer;wherein an exterior surface of the second layer has a gloss level of 18 gloss units or less.2. The process of wherein the second layer has a melt tangent delta in the range of 1 to 6 and a melt complex viscosity in the range of 1980 to 12 claim 1 ,000 Pa.sec.3. The process of wherein the melt tangent delta is in the range of 1.5 to 3.5.4. The process of wherein the melt complex viscosity is in the range of 2000 to 6500 Pa.sec.5. The process of claim 1 , further comprising cutting a body blank from the multi-layer sheet and forming at least a portion of the container from the body blank.6. The process of wherein the container is a container and the body blank comprises a sleeve blank claim 5 , a bottom element blank claim 5 , or both.7. The process of wherein the cutting a body blank from the multi-layer sheet generates scrap from a portion of the multi-layer sheet remaining after the cutting ...

HEAT-SHRINKABLE FILM FOR LABEL WITH LOW SPECIFIC GRAVITY AND METHOD FOR PREPARING THE SAME

A heat-shrinkable label film includes a foamed layer having polystyrene as a principal component, and a pair of non-foamed layers adhesively melted to either side of the foamed layer, wherein the foamed layer and the pair of the non-foamed layers are coextruded to provide a low specific gravity less than 1.0. The film is prepared by coextruding to form the several layers completing a non-drawn film; and drawing the non-drawn film in a transverse direction (TD) at a drawing ratio of 3.5 to 5.5. The foamed ratio of the foamed layer is in the range of 5 to 20%. The thickness of the foamed layer is 60 to 90% of the total thickness of the film; and the thickness of each non-foamed layer is 5 to 20% of the total thickness of the film. The heat-shrinkable label film has a thickness of 30 to 60 μm. 11020101020. A heat-shrinkable film for label , which comprises a foamed layer comprising polystyrene as a principal component , and a pair of non-foamed layers adhesively melted to either side of the foamed layer , wherein the foamed layer and the pair of the non-foamed layers are layered by coextrusion to provide a low specific gravity less than 1.0.21020. The heat-shrinkable film of claim 1 , wherein the thickness of the foamed layer is 60 to 90% of the total thickness of the film claim 1 , and the thickness of each non-foamed layer is 5 to 20% of the total thickness of the film.310. The heat-shrinkable film of claim 1 , wherein the foamed ratio of the foamed layer is in the range of 5 to 20%.4. The heat-shrinkable film of claim 1 , wherein the film has a thickness of 30 to 60 μm.51020. The heat-shrinkable film of claim 4 , wherein the foamed layer comprises 30 to 95% by weight of a styrene-butadiene copolymer and 5 to 70% by weight of a general-purpose polystyrene claim 4 , and the non-foamed layers comprises 30 to 95% by weight of a styrene-butadiene copolymer claim 4 , 4.9 to 65% by weight of a general-purpose polystyrene claim 4 , and 0.1 to 5% by weight of a high-impact ...

Extruded plastic film filled with metal particles, method of production and uses thereof

The present invention relates to a plastic film obtained by (co)extrusion or by a multilayer extrusion process. The purpose of the invention is to supply a plastic film having useful properties, in particular of thermal behaviour, adhesion, linear tearability, and having a reduced production cost. This film contains lamellar particles based on at least one metal and/or at least one metal oxide. It is obtained by the extrusion of a raw material constituted entirely or partly by a ground material from at least one coated film comprising at least one polyester and/or polyolefin film and at least one coating film based on at least one metal and/or at least one metal oxide. The invention also relates to a method of manufacture of the raw material of the plastic film according to the invention, a method of manufacture of said plastic film as well as the uses of said film. Application in the field of packaging, decoration and heat treatments.

RIBBED FILM STRUCTURES WITH PIGMENT CREATED VISUAL CHARACTERISTICS

In one example embodiment, a film includes a coextruded structure having both an extruded ribbed skin layer that includes a plurality of ribs, and a core layer. The ribs are spaced apart by a web that is integral with the ribs. The film also includes a coloring agent that is substantially more apparent in the ribs than in the web, such that a contrast in color and/or color intensity between the ribs and the web is visible. 1. A method for producing a film , comprising:adding a coloring agent to one of a first thermoplastic resin or a second thermoplastic resin;coextruding the first thermoplastic resin into a first layer of a coextruded film and the second thermoplastic resin into a second layer of the coextruded film that abuts the first layer; the extruded ribs have a color of the coloring agent; and', 'the thinner portions have a different color than the color of the coloring agent., 'forming, during coextruding, a plurality of extruded ribs into the coextruded film that are spaced apart from each other by thinner portions that are integral with the extruded ribs such that2. The method of claim 1 , wherein adding the coloring agent comprises adding an opaque pigment.3. The method of claim 1 , wherein adding the coloring agent comprises adding a black pigment.4. The method of claim 1 , wherein adding the coloring agent comprises adding the coloring agent to the first thermoplastic resin and not the second thermoplastic resin.5. The method of claim 4 , further comprising adding a voiding agent to the second thermoplastic resin.6. The method of claim 1 , further comprising performing post-extrusion processing on the coextruded film claim 1 , wherein the post-extrusion processing comprises one or more of MD stretching claim 1 , MD ring rolling claim 1 , TD stretching claim 1 , or TD ring rolling.7. The method of claim 6 , wherein the performing the post-extrusion processing comprising causes a portion of the extruded ribs to change in one or more of color or color ...

RIBBED FILM STRUCTURES WITH VOIDING AGENT CREATED VISUAL CHARACTERISTICS

In one example embodiment, a film includes a coextruded structure having both an extruded ribbed skin layer that includes a plurality of ribs, and a core layer. The ribs are spaced apart by a web that is integral with the ribs. The film also includes a voiding agent in the ribs of the skin layer. 1. A method for producing a film , comprising:adding a voiding agent to one of a first thermoplastic resin or a second thermoplastic resin and excluding the voiding agent from the other of the first thermoplastic resin or the second thermoplastic resin;coextruding the first thermoplastic resin into a first layer of a coextruded film and the second thermoplastic resin into a second layer of the coextruded film that abuts the first layer;forming, during coextruding, a plurality of extruded ribs into the coextruded film that are spaced apart from each other by thinner portions that are integral with the extruded ribs such that the extruded ribs have a different color than the thinner portions.2. The method of claim 1 , wherein adding the voiding agent comprises adding one of a substantially opaque voiding agent claim 1 , a translucent voiding agent; or a transparent voiding agent.3. The method of claim 1 , wherein adding the voiding agent comprises adding the voiding agent to the first thermoplastic resin and not the second thermoplastic resin.4. The method of claim 3 , further comprising adding a coloring agent to the second thermoplastic resin.5. The method of claim 4 , wherein the coloring agent is a different color than the voiding agent.6. The method of claim 1 , further comprising performing post-extrusion processing on the coextruded film claim 1 , wherein the post-extrusion processing comprises one or more of MD stretching claim 1 , MD ring rolling claim 1 , TD stretching claim 1 , or TD ring rolling.7. The method of claim 6 , wherein the performing the post-extrusion processing comprising causes a portion of the extruded ribs to change in one or more of color or color ...

Mono- and Multi-Layer Blown Films

An extruded air cooled blown film having a) a total thickness of 5 to 500 μm, b) a mono-layer structure or 2 to 9 coextruded layers, c) at least one layer L containing a polymer selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, hetero-phasic polypropylene block copolymers, or any mixtures thereof, said polymer having a melt flow rate, according to ASTM D-1238, of 0.1 to 10 dg/min at 230° C. and 2.16 kg, said layer L further containing 0.001 to 2%, relative to the weight of the polymer, of a particular nucleating agent, and optionally d) a Modulus according to EN ISO 527 enhanced by at least 10% versus a reference film without the nucleating agent. 134.-. (canceled)36. The extruded air cooled blown film according to claim 35 , havingd) a Modulus according to EN ISO 527 enhanced by at least 10% versus a reference film without a nucleating agent of the formula (IA), (IB), or (IC).37. The extruded air cooled blown film according to claim 35 , comprising 20 to 100% by weight claim 35 , relative to its total weight claim 35 , of a polypropylene homopolymer or copolymer.38. The extruded air cooled blown film according to claim 35 , whereinlayer L contains a polypropylene homopolymer, random copolymer, alternating or segmented copolymer, a block copolymer or a blend of polypropylene with another synthetic polymer.39. The extruded air cooled blown film according to claim 35 , whereinthe layer L contains a propylene copolymer with ethylene at an ethylene content of 0.5 to 15% by weight, relative to the total weight of the propylene copolymer.40. The extruded air cooled blown film according to claim 35 , whereinthe polypropylene homopolymer or copolymer has a melt flow rate of 0.3 to 5 dg/min at 230° C. and 2.16 kg according to ASTM D1238.41. The extruded air cooled blown film according to claim 35 , wherein the film structure contains at least one coextruded layer of low- claim 35 , linear-low- or high-density polyethylene ( ...

Method of Manufacturing Contact Lenses

A method of manufacturing a contact lens is disclosed. The method comprises manufacturing a rod of lens material , the rod containing a plurality of electronic components spaced apart along its length, separating the rod into a plurality of lens blanks , each lens blank containing at least one of said electronic components , and machining the front and/or back surface of a lens blank to produce a contact lens containing the at least one electronic component 1. A method of manufacturing a contact lens , the method comprising manufacturing a rod of lens material , the rod containing a plurality of electronic components spaced apart along its length , separating the rod into at least one lens blank containing at least one of said electronic components , and machining the front and/or back surface of the lens blank to produce a contact lens containing the at least one electronic component.2. A method according to claim 1 , wherein the contact lens is a rigid gas permeable contact lens claim 1 , a hydrogel contact lens claim 1 , or a silicone hydrogel contact lens.3. A method according to claim 1 , wherein manufacturing the rod of lens material comprises curing a quantity of liquid lens precursor composition containing an electronic component in a mold.4. A method according to claim 1 , wherein manufacturing the rod of lens material comprises producing a first length of the rod including a first one of the plurality of electronic components and then producing a second length of the rod claim 1 , said second length including a second one of the plurality of electronic components.5. A method according to claim 4 , wherein producing each length comprises locating an electronic component within the mold claim 4 , covering the electronic component with a portion of liquid lens precursor composition and then at least partially curing said portion of liquid lens precursor composition.6. A method according to claim 5 , wherein the step of locating the electronic component within ...

VOID-CONTAINING POLYESTER FILM AND METHOD FOR PRODUCING SAME

A void-containing polyester is disclosed which is excellent in concealing properties, whiteness, and thermal dimensional stability. A void-containing polyester film includes an internal void-containing layer (layer A). The void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin, and satisfies the following requirements (1) to (3), and an apparent density of the film is in a range of 0.8 to 1.2 g/cm. 1. A void-containing polyester film comprising an internal void-containing layer (layer A) ,wherein the void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin, and{'sup': 2', '2, '10 or more voids having an area of 10 to 50 μmare present per 10000 μmwhen observing a vertical cross section of the film.'}2. The void-containing polyester film according to claim 1 ,wherein the void-containing layer satisfies the following requirements (1) to (3), and{'sup': '3', 'an apparent density of the film is in a range of 0.8 to 1.2 g/cm.'}{'sup': '−1', '(1) A melt viscosity (η1) of the polyester resin at a melting temperature of 280° C. and a shear rate of 121.6 secis 90 to 400 Pas'}{'sup': '−1', '(2) A melt viscosity (η2) of the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 secis 300 to 850 Pa·s'}{'sup': '−1', '(3) A melt viscosity ratio (η2/η1) of the polyester resin and the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 secis 1.5 to 4.5'}3. A void-containing polyester film comprising an internal void-containing layer (layer A) claim 1 ,wherein the void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin which satisfies the following requirements (1) to (3), and{'sup': '3', 'an apparent density of the film is in a range of 0.8 to 1.2 g/cm.'}{'sup': '−1', '(1) A melt viscosity (η1) of the polyester resin at a melting temperature of 280° C. and a shear rate of 121.6 secis 90 to 400 Pas'}{'sup': '−1', '(2) A ...

Method of manufacturing prismatic type battery case

Provided are extruding a raw material into a prismatic hollow material having both open ends (Step (a)), drawing the hollow material a plurality of times so as to have a desired thickness (Step (b)), manufacturing a main body by cutting the drawn hollow material to a predetermined length (Step (c)), forming a sealing cover having a shape corresponding to an open end of the main body (Step (d)), and adhering the sealing cover to the open end of the main body (Step (e)).

POLYOLEFIN MICROPOROUS MEMBRANE, METHOD OF PRODUCING POLYOLEFIN MICROPOROUS MEMBRANE, BATTERY SEPARATOR, AND BATTERY

A polyolefin microporous membrane is capable of achieving a low shutdown temperature while keeping air permeation resistance sufficiently low, and a method produces the polyolefin microporous membrane. The polyolefin microporous membrane has, when a temperature is raised to 230° C. at a temperature rise rate of 10° C./min in differential scanning calorimetry (DSC), a ratio of a melting heat quantity (ΔH) of equal to or larger than 95% at temperatures lower than an equilibrium melting point of polyethylene, relative to 100% of the total melting heat quantity (ΔH). 115-. (canceled)16. A polyolefin microporous membrane comprising a polyethylene resin composition as a main component , the membrane having , when a temperature is raised to 230° C. at a temperature rise rate of 10° C./min in differential scanning calorimetry (DSC) , a ratio of melting heat quantity (ΔH) of equal to or larger than 95% at temperatures lower than an equilibrium melting point of polyethylene , relative to 100% of a total melting heat quantity (ΔH).17. The polyolefin microporous membrane according to claim 16 , wherein when the temperature is raised to 230° C. at a temperature rise rate of 10° C./min in DSC claim 16 , a melting heat quantity at temperatures equal to or higher than 135° C. and lower than 140° C. (ΔH) is larger than a melting heat quantity at temperatures equal to or higher than 140° C. and lower than 145° C. (ΔH) by 25% or more relative to 100% of the total melting heat quantity (ΔH).18. The polyolefin microporous membrane according to claim 16 , wherein the membrane has claim 16 , when the temperature is raised to 230° C. at a temperature rise rate of 10° C./min in DSC claim 16 , a melting heat quantity of equal to or larger than 23% at temperatures equal to or higher than 130° C. and lower than 135° C. (ΔH) claim 16 , relative to 100% of the total melting heat quantity (ΔH).19. The polyolefin microporous membrane according to claim 16 , wherein the membrane has claim 16 , when ...

METHOD FOR CHANGING THE MATERIAL IN AN EXTRUSION DEVICE

The present invention relates to a method for changing material in an extrusion device comprising at least two supply devices for supplying feedstock for an extruder, comprising the following steps: 1. A method for changing material in an extrusion device comprising at least two supply devices for supplying feedstock for an extruder , comprising the following steps:identifying a change request for changing material in an extrusion device,predetermining a production stability for a time after the material of at least one supply device has been changed,comparing the predetermined production stabilit to a threshold value of stability,changing the material in at least one supply device depending on the result of comparison.2. The method according to claim 1 , wherein for the step of predetermining the production stability claim 1 , the impact on the production stability for the feedstock and a subsequent material are read out from a database.3. The method according to claim 1 , wherein for the step of predetermining the production stability claim 1 , the correlation of the supply device to a corresponding layer of the film claim 1 , which is to be produced claim 1 , is considered.4. The method according to claim 1 , wherein the production stability for a multi-layer film is simulated supply device.5. The method according to claim 1 , wherein the steps of predetermining and of comparing are carried out for all supply devices claim 1 , and an order of the supply devices for changing the material is subsequently provided.6. The method according to claim 1 , wherein the step of changing the material is carried out as long as at least one of at least one stable or stabilizing layer of a film results in the predetermination of a production stability above the threshold value of stability.7. The method according to claim 1 , wherein the actual production stability is monitored and recorded at least while or after changing the material in at least one supply device.8. The ...

POLYOLEFIN BASED STRETCHED FILMS INCORPORATING DISPERSED AGENTS FOR OPTIMIZATION OF APPLICATION

The present disclosure relates to a method of promoting optimal stretching of stretch film during a wrapping operation, which method comprises at least the following steps. First a resin suitable for making stretch films is selected. Then a dispersed agent is selected, preferably one which has a refractive index similar to the selected resin such that when a film is made comprising the resin and the dispersed agent, the film will appear somewhat clear. The dispersed agent is then mixed with the resin and a film is formed from the resin containing the dispersed agent. Finally, a load is manually wrapped using such film, wherein during wrapping, the film is stretched to a level where the film becomes more opaque. 1. A method of promoting optimal stretching of stretch film during a wrapping operation comprising the steps of:a. selecting a polyolefin resin;b. selecting a dispersed agent having a refractive index similar to the selected polyolefin resin such that when a film is made comprising the polyolefin resin and the dispersed agent, the film will have a certain level of clarity;c. admixing the dispersed agent into a melt of the polyolefin resin;d. forming a film from the admixture of step c; ande. wrapping an object using the film of step d, while stretching the film to a level where the film becomes more opaque.2. The method of further comprising the step of pre-orienting the film formed in step d prior to wrapping the object claim 1 , and wherein the level of clarity after the pre-orientation is still less than when stretching to the final desired elongation.3. The method of wherein the film becomes more opaque upon elongation in the range of from 200 to 300 percent.4. The method of wherein the dispersed agent is added in an amount of from 1 to 15 percent by weight of the film.5. The method of where the dispersed agent is an organic or inorganic filler.6. The method of where the dispersed agent is selected from the group consisting of acrylic beads claim 1 , ...

Multilayer structures and articles comprising the same

Embodiments of the present invention relate to multilayer structures and articles formed therefrom. In one aspect, a multilayer structure comprises (a) a biaxially oriented polyethylene film comprising a linear low density polyethylene having a density of 0.910 to 0.940 g/cm 3 , wherein the ultimate elongation in the machine direction of the biaxially oriented polyethylene film is at least 2 times greater than the ultimate elongation in the cross direction, and wherein the ultimate tensile strength of the biaxially oriented polyethylene film is at least 60 MPa in at least one of the machine direction and the cross direction; (b) an adhesive layer; and (c) a sealant film, wherein the ultimate elongation of the sealant film is at least 300% in at least one of the machine direction and the cross direction, wherein the ultimate tensile strength of the sealant film is less than 50 MPa in at least one of the machine direction and the cross direction, and wherein the sealant film has a heat seal initiation temperature of 105 ° Cor less; wherein the sealant film is laminated to the biaxially oriented polyethylene film by the adhesive. In some embodiments, the sealant film comprises at least one layer comprising at least 30 percent by weight of a polyolefin plastomer, a polyolefin elastomer, an ultra low density polyethylene, an ethylene acetate copolymer, an ethylene acrylic acid copolymer, or an ethylene acrylate copolymer.

DEVICE AND METHOD FOR MONITORING MATERIAL PROPERTIES OF PLASTICS

The invention relates to a device and a method for inline quality checking for plastics during the production process, comprising at least two different measuring devices, wherein the device has a unit for sampling plastic melt from the production extruder, a unit for moulding a flat film from this plastic melt, and units for transporting the flat film to the measuring devices and for finishing the flat film. 1. Device for in-line quality checking for plastics during the production process , comprising at least two different measuring devices selected from the group of measuring devices for determining the rheological properties , measuring devices for colour measurement , measuring devices for detecting inclusions and gel particles and the like , measuring devices for judging the optical properties , and measuring devices for determining the mechanical parameters , studying the olfactory parameters , wherein the device has a unit for sampling plastic melt from the production extruder , a unit for moulding a flat film from this plastic melt , and units for transporting the flat film to the measuring devices and for finishing the flat film.2. Device according to claim 1 , wherein the device is coupled via an adapter to a side strand of the extruder and the sampling of the plastic melt occurs after opening of a valve.3. Device according to claim 1 , wherein the sampling of the plastic melt is performed through a borehole into the cylinder housing of the output region of the extruder.4. Device according to claim 1 , wherein the sampling of the plastic melt is performed by a displacement body claim 1 , which is positioned in the melt flow and around which the melt is conducted to a borehole in the cylinder housing of the extruder.5. Device according to claim 1 , wherein the device has a sheet die and a casting roller for moulding a flat film.6. Device according to claim 1 , wherein the device comprises two roller pairs for stretching the flat film.7. Device according to ...

POLYETHYLENE BLEND-COMPOSITION SUITABLE FOR BLOWN FILMS, AND FILMS MADE THEREFROM

The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 5 percent by weight of a high density polyethylene having a density in the range of from 0.950 to 0.970 g/cm, and a melt flow rate (I) in the range of from less than 0.5 g/10 minutes, and a molecular weight distribution (M/M) in the range of from 10 to 40, and Min the range of from 800,000 to 5,000,000 g/mol; (b) 90 percent or greater by weight of a linear low density polyethylene having a density in the range of from 0.910 to 0.950 g/cm, and a melt index (I) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more anti-oxidants. 1. A polyethylene blend-composition suitable for blown film comprising the melt blending product of:{'sup': '3', 'sub': 2', 'w', 'n', 'z, 'from 0.5 to 5 percent by weight of a high density polyethylene having a density in the range of from 0.950 to 0.970 g/cm, and a melt flow rate (I) in the range of from less than 0.5 g/10 minutes, and a molecular weight distribution (M/M) in the range of from 10 to 40, and Min the range of from 800,000 to 5,000,000 g/mol;'}{'sup': '3', 'sub': '2', '90 percent or greater by weight of a linear low density polyethylene having a density in the range of from 0.910 to 0.950 g/cm, and a melt index (I) in the range of from 0.1 to less than or equal to 5 g/10 minutes;'}optionally a hydrotalcite based neutralizing agent;optionally one or more nucleating agents;and optionally one or more antioxidants.2. The polyethylene blend-composition of claim 1 , wherein said linear low density polyethylene is a heterogeneous linear low density polyethylene.3. The polyethylene blend-composition of claim 1 , wherein when said polyethylene blend-composition is ...

SHRINK SLEEVE LABEL

A film has a skin layer, a base layer, and an intermediate layer between the skin and base layers. The skin layer has styrenic block copolymer, the base layer has ethylene/alpha-olefin copolymer, and the intermediate layer has from 12% to 50% styrene/ethylene-butadiene/styrene block copolymer. The film has a free shrink at 90° C. of at least 65% and a density of at most 0.960 grams per cubic centimeter. 1. A film comprising:a skin layer comprising at least 50% by weight of the skin layer of styrenic block copolymer having a styrene monomer content of at least 50 wt. %;a base layer comprising at least 50% by weight of the base layer of ethylene/alpha-olefin copolymer; andan intermediate layer between the skin and base layers and directly adjacent at least one of the skin layer and the base layer, the intermediate layer comprising at least 12% and at most 50%, by weight of the intermediate layer, of styrene/ethylene-butadiene/styrene block copolymer, wherein the film has:a free shrink at 90° C. in at least one of the transverse and machine directions of at least 65%; anda density of at most 0.960 grams per cubic centimeter.2. The film of wherein the film has a density of at most 0.950 grams per cubic centimeter.3. The film of wherein the film has a free shrink at 90° C. in at least one of the directions of at least 70%.4. The film of wherein the film has a free shrink at 90° C. in one of the transverse and machine directions of at most −2%.5. The film of wherein the ethylene/alpha-olefin copolymer has a density of at most 0.900 grams per cubic centimeters.6. The film of wherein the intermediate layer is directly adjacent the skin layer.7. The film of wherein the intermediate layer is directly adjacent the base layer.8. The film of wherein the intermediate layer comprises at most 30% claim 1 , by weight of the intermediate layer claim 1 , of styrene/ethylene-butadiene/styrene block copolymer.9. The film of wherein the intermediate layer comprises at most 25% claim 1 , ...

FIBER REINFORCED THERMOPLASTIC COMPOSITES AND METHODS OF MAKING

Methods of making a fiber-reinforced thermoplastic polyurethane composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one curative for a thermoplastic polyurethane prepolymer. The sized fibers may be contacted with a thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, where the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the curative that is also present on the sized fibers. The resin-fiber amalgam may then be cured to form the fiber-reinforced thermoplastic polyurethane composite. 1. A method of making a fiber-reinforced polyurethane composite , the method comprising:applying a sizing composition to a plurality of fibers to make sized fibers, wherein the sizing composition comprises at least one curative for a thermoplastic polyurethane prepolymer;contacting the sized fibers with the thermoplastic polyurethane prepolymer composition to form a resin-fiber amalgam, wherein the thermoplastic polyurethane prepolymer composition includes 50 wt. % or less of a total amount of the at least one curative that is also present on the sized fibers; andcuring the resin-fiber amalgam to form the fiber-reinforced polyurethane composite.2. The method of claim 1 , wherein the thermoplastic polyurethane prepolymer composition comprises 0 wt. % of the curative that is present on the sized fibers.3. The method of claim 1 , wherein the thermoplastic polyurethane prepolymer composition is the reaction product of a polyol and a polyisocyanate compound.4. The method of claim 3 , wherein the polyol comprises a polyester polyol or a polyether polyol.5. The method of claim 4 , wherein the polyester polyol comprises a reaction product of adipic acid and diethylene glycol.6. The method of claim 4 , wherein the polyether polyol comprises a polyalkylene glycol.7. The method of claim 1 , wherein ...

Method and system for making a plastic film

A plastic film of a thermoplastic synthetic resin is made in a film-making system by extrusion from a die of an extruder. First the plastic is melted and extruded from the die as a tube or web that is, typically after cooling and stretching, formed into a package. At least one reference parameter is provided, and, during continuous operation of the system, two input parameters different from the reference parameter are measured by respective measuring devices An output is determined from these reference parameters and is compared with the reference parameter.

METAL ARTICLES WITH HEAT LAMINATED CLEAR SEMI-CRYSTALLINE POLYESTERS

This invention relates to clear, semicrystalline, strain induced crystallized polyester films heat laminated onto metal substrates. The films contain at least one polyester which comprises at least of one or more monomers selected from 1,4-cyclohexanedimethanol or 2,2,4,4-tetramethyl-1,3-cyclobutanediol. The articles of the present invention exhibit enhanced mechanical properties useful for the fabrication of thin metal articles such as metal cans. 1. An article comprising a clear , semicrystalline , strain induced crystallized polyester film heat laminated onto a metal substrate , wherein the film comprises at least one polyester which comprises: i) 70 to 100 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms;', 'ii) 0 to 30 mole % of one or more secondary aromatic dicarboxylic acid residues having up to 20 carbon atoms; and', 'iii) 0 to 30 mole % of one or more secondary aliphatic dicarboxylic acid residues having up to 16 carbon atoms; or', 'i) 0 to 30 mole % of one or more aromatic dicarboxylic acid residues having up to 20 carbon atoms;', 'ii) 70 to 100 mole % of one or more secondary aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and, '(A) a dicarboxylic acid component comprising either i) 70 to 100 mole % of a glycol having up to 16 carbon atoms', 'ii) 0 to 30 mole % of one or more secondary glycols having up to 16 carbon atoms; and, '(B) a glycol component comprisingwherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %;wherein the inherent viscosity of the polyester is 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.;{'sub': 'g', 'wherein said polyester has a Tof 55 to 120° C.; and'}{'sub': 'g', 'wherein said film has a strain induced strain induced crystallinity of 5 to 30% when stretched at a temperature above the Tof the polyester.'}2. The polyester according to ...

Thermoplastic Polymeric Nanocomposite Films and Related Methods

The disclosure relates to a nanocomposite polymeric film including a thermoplastic polymer matrix such as polypropylene or other polyolefin, a coupling agent-modified organoclay reinforcement, and a polymeric compatibilizer bound to the coupling agent-modified organoclay, in particular as a thin film with controllable thicknesses. The disclosure further relates to masterbatch additives formed from the coupling agent-modified organoclay and the polymeric compatibilizer bound to the coupling agent-modified organoclay as well as related methods for making the nanocomposite polymeric film and/or processing recycled plastics. The inclusion of the coupling agent-modified organoclay reinforcement improves the mechanical properties of the nanocomposite polymeric film and the rheological properties of polymer melts including the nanocomposite polymeric film components. The coupling agent-modified organoclay leads to strain-hardening behavior for the polymer melts, which in turn can improve extensional viscosity values and melt processability for film blowing. 1. A nanocomposite polymeric film comprising:(a) a thermoplastic polymer matrix;(b) a coupling agent-modified organoclay, wherein the coupling agent is bound to both edges and faces of the organoclay; and(c) a polymeric compatibilizer bound to the coupling agent-modified organoclay.2. The nanocomposite polymeric film of claim 1 , wherein the thermoplastic polymer matrix comprises one or more of a polyolefin claim 1 , polyacrylate claim 1 , poly(acrylonitrile-butadiene-styrene) claim 1 , poly(lactic acid) claim 1 , polybenzimidazole claim 1 , polycarbonate claim 1 , polyether sulfone claim 1 , polyetherether ketone claim 1 , polyetherimide claim 1 , polyphenylene oxide claim 1 , polyphenylene sulfide claim 1 , polystyrene claim 1 , polyvinyl chloride polyester claim 1 , polyamide claim 1 , copolymers thereof claim 1 , and combinations thereof.3. The nanocomposite polymeric film of claim 1 , wherein the thermoplastic ...

METHOD FOR MANUFACTURING ASYMMETRIC POLYVINLYLIDENEFLUORIDE HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE MANUFACTURED THEREFROM

The present disclosure relates to a method for manufacturing an asymmetric polyvinlylidene fluoride (PVDF) hollow fiber membrane, whereby a PVDF hollow fiber membrane is manufactured by the thermally induced phase separation method, which enables effective mixing of the PVDF and a diluent without additional use of an inorganic fine powder such as silica and is advantageous in that it is relatively easy to control preparation parameters because temperature is the main factor of phase separation of the two-component system of the polymer and the diluent and thus to obtain a separation membrane of satisfactory quality, by providing temperature difference between the inner and outer surfaces of a hollow fiber, thereby achieving an asymmetric structure in which the inner surface side and the outer surface side of the hollow fiber have different pore sizes and distributions. 1. A method for manufacturing an asymmetric PVDF hollow fiber membrane , comprising:(a) preparing a melted mixture comprising a PVDF resin and a diluent;(b) forming an unsolidified PVDF hollow fiber by spinning the melted mixture through a dual nozzle;(c) inducing thermally induced phase separation by providing temperature difference between the inner and outer surfaces of the spun unsolidified PVDF hollow fiber by supplying nitrogen gas at higher temperature than the outer surface to the inner surface and quenching the outer surface using a cooling medium at lower temperature than the inner surface; and(d) forming pores inside the hollow fiber by extracting the diluent from the thermally phase separation induced PVDF hollow fiber precursor.2. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to claim 1 , wherein the preparing the melted mixture comprises preparing a pellet by uniformly mixing a PVDF resin and a diluent in a batch reactor and melting the prepared pellet in an extruder.3. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to ...

BIAXIALLY STRETCHED POLYESTER FILM AND METHOD FOR PRODUCING SAME

A biaxially stretched polyester film, being a biaxially stretched film including a modified polybutylene terephthalate (modified PBT) and polyethylene terephthalate (PET), wherein a mass ratio (modified PBT/PET) between the modified PBT and PET is 20/80 to 5/95, the modified PBT is a PBT containing 5 to 20% by mass of a polytetramethylene glycol unit having a molecular weight of 600 to 4,000, the amount of tetrahydrofuran (THF) generated by heat treating the biaxially stretched film in a helium gas atmosphere at 180° C. for 30 minutes is 50 μg/g or less, and the biaxially stretched film has tear linearity in a lengthwise direction thereof. 1. A biaxially stretched polyester film , being a biaxially stretched film comprising a modified polybutylene terephthalate (modified PBT) and polyethylene terephthalate (PET) , wherein a mass ratio (modified PBT/PET) between the modified PBT and PET is 20/80 to 5/95 , the modified PBT is a PBT containing 5 to 20% by mass of a polytetramethylene glycol unit having a molecular weight of 600 to 4 ,000 , an amount of tetrahydrofuran (THF) generated by heat treating the biaxially stretched film in a helium gas atmosphere at 180° C. for 30 minutes is 50 μg/g or less , and the biaxially stretched film has tear linearity in a lengthwise direction thereof.2. A biaxially stretched polyester film claim 1 , wherein at least on one side of the biaxially stretched polyester film according to claim 1 , at least one of aluminum claim 1 , aluminum oxide and silicon oxide is vapor deposited claim 1 , and the biaxially stretched polyester film has a gas barrier property and tear linearity.3. A method for producing the biaxially stretched polyester film according to claim 1 , wherein a modified polybutylene terephthalate (modified PBT) including 5 to 20% by mass of a polytetramethylene glycol unit having a molecular weight of 600 to 4 claim 1 ,000 and giving an amount of tetrahydrofuran (THF) claim 1 , generated by heat treating in a helium gas ...

BIAXIALLY ORIENTED POLYETHYLENE TEREPHTHALATE FILM AND METHOD FOR PRODUCING SAME

This film provides a polyethylene terephthalate film whereby dimensional variation in various steps can be reduced, particularly when the film is used as a substrate film for a flexible device, and that is suitable as a substrate film having minimal curl and excellent appropriateness for processing. This biaxially oriented polyethylene terephthalate film has a degree of crystallinity (Xc) of 0.35 to 0.50, the intrinsic viscosity (IV) of the resin constituting the film is 0.66-1.0 dl/g, the coefficient of thermal expansion at a temperature of 50-170° C. in each of the machine direction and transverse direction of the film is 0.29 ppm/° C., and the degree of thermal shrinkage at 180° C. in each of the machine direction and transverse direction of the film is 0.5%-1.0%. 1. A biaxially oriented polyethylene terephthalate film comprising at least polyethylene terephthalate resin and having a degree of crystallinity (Xc) of more than 0.35 and 0.50 or less , the resin that constitutes the film having an intrinsic viscosity (IV) of 0.66 to 1.0 dl/g , and the film having a coefficent of thermal expansion of 0 to 29 ppm/° C. in a temperature range of 50° C. to 170° C. in both the film's machine direction and transverse direction and a degree of thermal shrinkage of −0.5% to 1.0% at 180° C. in both the film's machine direction and transverse direction.2. The biaxially oriented polyethylene terephthalate film as described in claim 1 , wherein the intrinsic viscosity (IV) of the resin that constitutes the film is 0.68 to 1.0 dl/g.3. The biaxially oriented polyethylene terephthalate film as described in claim 1 , wherein both the coefficent of thermal expansion in the machine direction of the film and that in its transverse direction are 0 to 25 ppm/° C. in a temperature range of 50° C. to 170° C.4. The biaxially oriented polyethylene terephthalate film as described in claim 1 , wherein a minor melting peak temperature (T-meta) occurs at 210° C. to 240° C.5. The biaxially ...

MELT PROCESSABLE POLY(VINYL ALCOHOL) BLENDS AND POLY(VINYL ALCOHOL) BASED MEMBRANES

Technologies and implementations for providing melt processable poly(vinyl alcohol) blends and poly(vinyl alcohol) based membranes are generally disclosed. 124-. (canceled)25. A method to produce a membrane , the method comprising:blending a first polymer, a second polymer, and a third polymer to form a polymer blend, wherein the third polymer is configured to provide post-melt processing flexibility to the polymer blend to form a melt-processable polymer blend;extruding the melt-processable polymer blend; andforming the membrane from the extruded melt-processable polymer blend by one or more of: film blowing and casting.26. The method of claim 25 , further comprising:adding a plasticizer to facilitate the formation of the melt-processable polymer blend.27. The method of claim 25 , further comprising:crosslinking a portion of the first polymer to form the membrane; andperforming a post-membrane formation treatment that includes application of a chemical configured to cross-link poly(vinyl alcohol), wherein the chemical includes one or more of: boric acid, glutaraldehyde, amic acid, maleic acid, and polyacrylic acid.28. The method of claim 25 , further comprising:crosslinking a portion of the first polymer to form the membrane by an in situ application of reactive components configured to crosslink the first polymer.29. The method of claim 25 , further comprising:crosslinking a portion of the first polymer to form the membrane by an application of radiation.30. The method of claim 25 , further comprising:treating the membrane to produce a photoactive membrane by an application of one or more of: aminobutyraldehyde diethyl acetal and methacrylamidoacetaldehyde dimethyl acetal.31. The method of claim 25 , further comprising:crosslinking a portion of the first polymer; anddissolving another portion of the first polymer in a solvent and evaporating the solvent to form the membrane.32. A melt-processable polymer blend claim 25 , the melt-processable polymer blend ...

PAPER-LIKE FILM AND PROCESS FOR MAKING IT

A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 0.1 to about 20 mils and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 20 to about 200 mils, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film. 1. A process for making a micro-voided film , comprising:a) compounding into pellets or granules having an at least substantially homogeneous composition comprising, by weight, i) from about 20% to about 60% of high density polyethylene having a molecular weight of at least about 500,000 and a melt index of less than 0.2 dg/min, and ii) from about 40% to about 80% of low aspect ratio filler having a mean particle size from about 1 to about 25 microns, wherein the weight ratio of the low aspect ratio filler to the polyethylene is at least about 0.7;b) extruding the composition into a film having a thickness of from about 20 to about 200 mils; and{'sup': '3', 'c) orienting said extruded film using a high stalk, blown film process, the resulting film having a thickness of from about 0.1 to about 20 mils and a void fraction of from 0.60 to about 0.75 and a density of from about 0.40 to about 0.70 g/cm, wherein the voids are in the interior of the film.'}2. The process according to wherein the resulting film has a thickness of from about 20 to about 50 microns and a void fraction of from about 0.62 to about 0 ...

MULTIFUNCTIONAL BOPP CIGARETTE PACKAGING FILM AND MANUFACTURING METHOD THEREOF

A multifunctional BOPP cigarette packaging film comprises an upper layer (), a middle-upper layer (), a middle layer (), a middle-lower layer () and a lower layer (). The upper layer () is a binary copolymerized polypropylene surface layer, both the middle-upper layer () and the middle-lower layer () are homopolymerized polypropylene antibacterial agent layers, the middle layer () is a homopolymerized polypropylene stiffening agent layer, the lower layer () is a binary copolymerized polypropylene bottom surface layer. Also disclosed is a manufacturing method for the multifunctional BOPP cigarette packaging film. The packaging film acts as an effective barrier, has slip property and relatively low moisture permeability as well as low cost, and is suitable for a high-speed packing machine. 1. A manufacturing method for a multifunctional BOPP cigarette packaging film which is characterized in that: said manufacturing method comprises the following steps:(1) selecting materials: in the multifunctional BOPP cigarette packaging film, the upper layer is a binary copolymerized polypropylene surface layer, the middle-upper layer and the middle-lower layer are homopolymerized polypropylene antibacterial agent layers, the middle layer is a homopolymerized polypropylene stiffening agent layer, and the lower layer is a binary copolymerized polypropylene bottom surface layer;the upper layer accounts for 8 to 15 percent of the total mass, the middle-upper layer accounts for 12 to 21 percent of the total mass, the middle layer accounts for 38 to 50 percent of the total mass, the middle-lower layer accounts for 12 to 21 percent of the total mass, and the lower layer accounts for 8 to 15 percent of the total mass;the binary copolymerized polypropylene surface layer and the binary copolymerized polypropylene bottom surface layer respectively comprise the following three components in parts by mass: 7 to 11 parts of binary copolymerized polypropylene, 0.5 to 3.5 parts of thermoplastic ...

MULTILAYER BARRIER FILM, A PACKAGING LAMINATE COMPRISING THE FILM, A PACKAGING CONTAINER FORMED FROM THE PACKAGING LAMINATE AND A METHOD FOR THE PRODUCTION OF THE FILM

The invention relates to a biaxially oriented multilayer, barrier polymer film, having gas barrier properties and consisting of polymer layers, comprising a polyolefin core layer and a barrier surface layer of ethylene vinyl alcohol (EVOH) on a first side of the core layer. The invention further relates to such a vapour deposition coated film, especially a metallised such film. The invention also relates to a packaging laminate comprising the film or vapour deposition coated polymer film and to a packaging container produced from such a packaging laminate. The invention further relates to a method for the production of the barrier film. 1. A biaxially oriented , multilayer polymer barrier film , having gas barrier properties , and comprising:a polyolefin core layer; andat least one barrier surface layer of ethylene vinyl alcohol (EVOH) on at least one side of the core layer,wherein the barrier layer of EVOH is less than 1.5 μm thick and has an ethylene content of 36 mole-% or lower, and{'sup': 3', '2, 'the biaxially oriented polymer barrier film has an oxygen transmission (OTR) lower than 10 cm/m/1 day/1 atm, 24 h, 23° C., 50% RH.'}2. The biaxially oriented polymer barrier film according to claim 1 , wherein the biaxially oriented polymer barrier film has an oxygen transmission (OTR) lower than 5 cm/m/1 day/1 atm claim 1 , 24 h claim 1 , 23° C. claim 1 , 50% RH.3. The biaxially oriented polymer barrier film according to claim 1 , wherein the biaxially oriented polymer barrier film has an oxygen transmission (OTR) lower than 1 cm/m/1 day/1 atm claim 1 , 24 h claim 1 , 23° C. claim 1 , 50% RH.4. The biaxially oriented polymer barrier film according to claim 1 , wherein the biaxially oriented polymer barrier film has an oxygen transmission (OTR) at high humidity lower than 25 cm/m/1 day/1 atm claim 1 , 24 h claim 1 , 23° C. claim 1 , 90% RH.5. The biaxially oriented polymer barrier film according to claim 1 , wherein the biaxially oriented claim 1 , polymer barrier ...