Abstract: The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.

Abstract: The object of the invention is to provide plant-derived component-containing polycarbonates with improved color tone, and a process for their production. This object of the invention is achieved by reducing the inorganic impurities in the polymer starting material and by reducing the inorganic impurities in the polymer product.

Abstract: It has now been discovered, according to the present invention, that interlayers comprising a blend of plasticized poly(vinyl butyral) and poly(cyclohexanedimethylene terephthalate-co-ethylene terephthalate) copolyester can be used to form interlayers having a pearly white appearance. Such interlayers are useful in applications in which a colored multiple layer glass interlayer is desirable.

Abstract: A resin precursor composition includes an isocyanate component, a first polyol having a molecular weight of between approximately 600 and 800 and an OH index of between approximately 200 and 300 mgOH/g, and a second polyol having a molecular weight of between approximately 100 and 300 and an OH index of between approximately 800 and 1,200 mgOH/g.

Abstract: Disclosed herein are monofilament fibers comprising at least one polymeric resin and at least one coated filler, wherein the at least one coated filler has an average particle size of less than or equal to about 3 microns and/or has a top cut of less than or equal to about 10 microns, and wherein the at least one coated filler is present in an amount of less than or equal to about 50% by weight, relative to the total weight of the monofilament fibers. Also disclosed herein are methods for producing monofilament fibers comprising adding ground calcium carbonate to at least one polymeric resin and extruding the resulting mixture.

Abstract: A porous substrate and method of forming a porous substrate including providing a fiber material, providing at least one extrusion aid, and providing at least one washcoat precursor. The fiber material, the at least one extrusion aid and the at least one washcoat precursor are mixed to provide an extrudable batch. The extrudable batch is extruded into a green substrate. The green substrate is fired to form a porous rigid substrate and to form a washcoat at least partially coating the fiber material.

Abstract: A thermal insulating and substantially moisture impermeable rigid extrusion comprising 40 to 75 wt % rice husks, a coupling agent, a lubricant, a plasticizer, and the balance a thermoplastic plastic, preferably a thermoplastic polyolefin plastic selected from the group consisting of high density polyethylene, low density polyethylene; linear low density polyethylene, homopolymer polypropylene, copolymer polypropylene, and combinations thereof. The rigid extrusion may be an elongated strip in the shape of a panel, a sheet, a board, a stud, a door frame jamb, a door frame header, an I-beam, a hollow post or beam with partially or fully encapsulated glass fibre reinforcing, a baseboard, a quarter-round, a cove molding, a fascia or a soffit. A preferred rigid extrusion has longitudinal tongue and groove side edges and longitudinal ribs and recesses formed across a face thereof substantially from one side edge to the other.

Abstract: Filled polyamide molding materials, in particular polyamide molding materials with medium filler content, are producible from a polyamide blend and for example by compounding with chopped or endless fibers on two-screw extruders, and have a combination of reduced water absorption and good mechanical properties, which results in very good dimensional stability and reduced variation of the electrical properties of the produced molded part, such as an antenna housings of stationary or mobile communication devices. These thermoplastic polyamide molding materials are suitable for manufacturing molded parts and other semi-finished or finished parts, for example by extrusion, injection molding, pressing, direct process or direct compounding, respectively, wherein the compounded polyamide molding material is directly processed by injection molding or other shaping methods.

Abstract: An extrusion die or extruder having a flexible lip that is moveable by a geared mechanism. A shaft is operably connected to at least one gear, which in turn is operably connected to a movable lip of the extruder. Rotation of the shaft results in movement of the extruder lip.

Abstract: The present invention relates to a process for manufacturing a microporous polyolefin film which can be used for various battery separators, separating filters and membranes for microfiltration. The process for manufacturing a microporous polyolefin film according to the invention comprises mixing/extrusion through efficient and separate injection of 15-55% by weight of polyolefin (Component I), and 85-45% by weight of a diluent (Component II) which forms thermodynamic single phase with the polyolefin and a diluent (Component III) which can undergo thermodynamic liquid-liquid phase separation with the polyolefin, into an extruder.

Abstract: A spinneret format, an electric-field reversal format and a process for post-treatment of membranes formed from electro-spinning or electro-blowing are provided, including a cleaning method and apparatus for electro-blowing or blowing-assisted electro-spinning technology.

Abstract: Yarns, fibers or filaments, in particular based on polyamides, are shaped into a variety of articles, especially ropes and more particularly climbing ropes which have good mechanical properties, especially under both low and relatively high humidity conditions.

Abstract: A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.

Abstract: A method of crystallizing a plurality of crystallizable polymer pellets includes a step in which the pellets are contacted with a temperature adjusting fluid in a crystallizer. The fluid adjusts the temperature of the pellets by having a temperature sufficient to allow at least partial crystallization of the plurality of polymeric pellets while maintaining the average pellet temperature of the plurality of pellets below the melting temperature of the pellets. A crystallizer implementing the methods of the invention is also provided.

Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.

Abstract: Prepare an oriented polymer composition that is cavitated, has cross sectional dimensions all at least three millimeters and at least one de-oriented surface layer having a thickness of at least 8C microns and at least 50 microns less than half the thickness of the oriented polymer composition, the de-oriented surface layer having a lower degree of polymer orientation than a 100 micron thick portion of the oriented polymer composition adjacent to and below the de-oriented surface layer by sufficiently heat treating a surface of a cavitated oriented polymer composition.

Abstract: The object of the present invention is to provide a method for producing a composite plant fiber material capable of achieving both of higher lightweight and better mechanical characteristics. The method of producing a composite plant fiber material having a structure wherein plant fibers (kenaf fibers, etc.) are bonded together via a thermoplastic resin (a polypropylene-based resin, etc.) and containing 30% to 95% by weight of the plant fibers referring the total amount of plant fibers and thermoplastic resin as to 100% by weight, which comprises, in this order, a spinning process for melt-spinning a thermoplastic resin (a polypropylene-based resin) containing an acid-modified thermoplastic resin (maleic anhydride-modified polypropylene, etc.) to give thermoplastic resin fibers; a fiber-mixing process for combining plant fibers (kenaf fibers, etc.) with the thermoplastic resin fibers to give a fiber mixture; and a heating process for melting the thermoplastic resin fibers in the fiber mixture.

Abstract: A pharmaceutical composition comprising a solid unit dosage form comprising: (i) ritonavir or a pharmaceutically acceptable salt and ester thereof; (ii) darunavir or a pharmaceutically acceptable salt and ester thereof.

Abstract: The present invention relates to an extruder for a polymer, and a process for extruding a polymer using said extruder. In particular, the present invention provides an extruder comprising: (i) two or more barrel sections arranged sequentially from: (a) an upstream feed barrel section to which polymer feedstock to be extruded is fed, the upstream feed barrel section containing two or more screws each having a diameter of X; to (b) a downstream barrel section from which melted polymer is passed to a die and extruded; and (ii) one or more feed ports for feeding polymer feedstock to be extruded into the extruder at its upstream end, characterised in that the total area of the one or more feed ports through which polymer feedstock is introduced is greater than 4*X2, and a process for extrusion of polymer comprising feeding a polymer feedstock to the feed port of such an extruder.

Abstract: An extrusion die for extruding thermoplastic materials to produce a sheet of substantially uniform thickness, the extrusion die having a manifold width that increases from the centerline toward the die exit or lip. The increasing width manifold arms, with the preland portion, provide a constant shear rate at all areas of the die and a constant residence time, so that every fluid particle path through the die has the same residence time. By having the increasing width manifold arms, the preland area of the extrusion die is decreased, usually by about 30%, often about 40-60%, compared to a Winter die, thus decreasing clam-shelling effect and allowing design and extrusion of wider sheets.

Abstract: A process for manufacturing asymmetric braid reinforced capillary ultra- or micro-filtration membranes (1), including the subsequent steps of pulling a tubular braid (5) through a spinneret (7) and coating the braid with a dope. Prior to the coating step, the braid is impregnated with a non-coagulation liquid, being a liquid which does not cause coagulation of the dope, when brought in contact with the dope. The result is a membrane with an outer skin, i.e. smaller pores near the outside diameter than near the inside diameter, and a coating which is closely arranged around the outside diameter of the braid, without any substantial penetration of the coating into the braid.

Abstract: Elastic fibers are disclosed which have a relatively flat modulus curve at between 100% and 200% elongation. The fibers can be made into garments having a very comfortable feel. The preferred elastic fibers are made from thermoplastic polyurethane polymers and are made by a unique melt spinning process where the fiber is wound into bobbins at a speed just slightly higher than the melt velocity of the polymer exiting the spinneret.

Abstract: Layer made of base plastic comprising, in the dispersed form, nodules with a diameter of less than or equal to one micron comprising barrier plastic incompatible with the base plastic; multilayer structure comprising at least one such layer and process for the manufacture of such layers/structures.

Abstract: The invention embraces polyester resins and containers that include surface-modified talc. The invention also embraces a method for the late introduction of surface-modified talc via a reactive carrier to achieve a polyester resin that is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.

Abstract: An uncured silica-containing rubber composition having a moisture exposed surface wherein the rubber surface contains a combination of silica and a specialized tackifying resin. The moisture exposed silica degrades necessary building tack for the rubber composition. The specialized tackifying resin counteracts and significantly reduces said reduction of building tack caused by the silica/moisture interaction. Accordingly, a method of preparation of silica-containing uncured rubber is provided by processing the rubber under high shear, internal heat generation to cause the rubber composition to reach an elevated temperature followed by treating the surface of the heated rubber composition with moisture to cool the processed rubber composition where the surface of the rubber composition contains said silica together with a specialized tackifying resin.

Abstract: The invention relates to polyacetal compositions comprising a mixture of (i) a polyacetal resin, (ii) p-aramid particles and (III) a vinyl-terminated dimethyl siloxane polymer. These compositions are useful in preparing molded articles exhibiting a good balance between high self-lubricating properties and wear resistance, and especially useful in articles that are in motion with respect to other parts they are in contact with.

Abstract: A passenger bus body is fabricated in a mold by introducing resin and reinforcing fibers into a cavity of the mold that causes the introduced material to seamlessly join lengthwise margins of the roof (18, 18A) with upper lengthwise margins of the side walls (14, 16; 14A, 16A) and to seamlessly join lengthwise margins of the floor (12, 12A) with the lower lengthwise margins of the side walls. Floor rails (32, 34) of structural composite can eliminate the need for a separate metal chassis frame.

Abstract: Anti-tack additives for elastic fibers and methods of preparing the same are included. The elastic fibers include a substituted cellulose additive.

Abstract: Provided is a separator for alkaline batteries which can not only prevent batteries from internal short circuit by inhibiting the dendrite formation at anode, but also enables to have a low electrical resistance. The separator for alkaline batteries comprises a composite sheet in which a base layer comprising a wet-type nonwoven material formed from alkaline resistant fibers is covered with a nanofiber layer comprising a modified polyvinyl alcohol fiber which has a fiber diameter of 10 to 1000 nm and a liquid absorption amount by fibers of 4.0 to 40.0 g/g after immersion in a 35% aqueous solution of KOH.

Abstract: The invention relates to a method for energy usage during the cooling of extrusion profiles, preferably pipes (3), wherein energy is supplied in the form of heat for melting the plastic and heat is withdrawn from the plastic again after shaping at least in the devices of mold (2), calibration (6), and cooling bath (6) until the plastic is self-supporting. According to the invention, it is provided that a coolant medium runs through the extrusion line opposite to the extrusion direction (8) for cooling, the medium which is used for cooling being guided from one device (6) to the next and the coolant medium heating further in each device (6).

Abstract: The present invention relates generally to textile fabrics, and more particularly, to a stretchable, nonwoven nanofiber fabric which is impermeable to water but allows vapor transport, capable of conforming to body parts, and is particularly useful in high performance apparels and personal care products. The fabric is combined with different substrates to form a laminate. The fabric and its laminate can retain their dimensional integrity on repeated stretching, have relatively high air permeability while maintaining liquid repellency, and have high stretching recovery. Methods of preparing and applying the nanofiber fabric and its laminate are also provided.

Abstract: The present invention relates to a method to produce a polymeric sheet comprising the steps of providing an acid-based polymer, providing a neutralizing agent, the neutralizing agent being selected from the group consisting of an organic metallic compound, a metallic salt of a fatty acid, and an ionomer, or a mixture thereof, providing a processing oil, mixing said acid-based polymer, said neutralizing agent, said processing oil, to obtain a polymeric composition, and processing said polymeric composition to form a polymeric sheet. The polymeric sheet may be used as a component, or as a substrate, of a surface covering. The polymeric sheet may also be used to form polymeric particles which are component of so-called “homogenous”, or substrate-free, surface covering.

Abstract: An oriented polymer composition containing thirty to 95 weight-percent inert inorganic filler and a continuous phase of at least one orientable polymer contains void spaces due to cavitation and has a density of less than 0.8 grams per cubic centimeter, a flexural modulus of 1.4 gigapascals or more, cross section dimensions all greater than 1.5 millimeters, a delamination force value of 44.5 Newtons (ten pounds force) or more and little or no blowing agent.

Abstract: A method for forming a microporous membrane having a microstructure is described. Dope and coagulant formulations are simultaneously cast, where the coagulant formulation diffuses into the dope formulation through an interface effecting a phase inversion forming a microstructure.

Abstract: The invention relates to a catheter having a single-layer inner tube, the single-layer inner tube with an inner surface forming a lumen and with an outer surface forming an outer surface of catheter duct, it being possible to arrange one or more guide wires in the lumen of the inner tube, characterized in that the single-layer inner tube is made of a material including: a) 96 to 99.9% by weight of a polymer, a copolymer, and/or a mixture of several polymers and/or copolymers; b) 0 to 1% by weight talc; c) 0 to 1% by weight calcium carbonate; d) 0 to 1% silicon dioxide; e) 0 to 1% by weight waxes; wherein the sum of the weight percentages of constituents b) to e) is at least 0.1% by weight, and no more than 4% by weight, and wherein all weight percentage information relates to the total weight of the single-layer inner tube.

Abstract: The present invention relates to the use of a microcrystalline polyamide for obtaining an object having all or part of its outer surface formed from this microcrystalline polyamide and having a particular surface finish, in which: the manufacture of the object comprises steps carried out hot between the Tg (glass transition temperature) and the Tm (melting point) of this microcrystalline polyamide; the transparency of the microcrystalline polyamide is such that the light transmission at 560 nm on a polished object 1 mm in thickness is greater than 80%, advantageously greater than 88%, the transparency being measured on the object obtained by standard processing methods, such as injection moulding and sheet extrusion/calendering.

Abstract: A process for producing a three-dimensional article comprising a poly(ester)carbonate compositions characterized by its flame resistance and high impact strength is disclosed. The composition that contains branched aromatic poly(ester)carbonate, a graft polymer wherein the graft base is silicone rubber or silicone-acrylate rubber, talc, phosphorus-containing flameproofing agent, and an inorganic boron compound, and an optional anti-dripping agent satisfies enhanced fire-protection requirements.

Abstract: Provided is a process for producing an aqueous fluorinated polymer dispersion having a reduced content of a fluorinated emulsifier by using a weakly basic anion-exchange resin to adsorb and remove a fluorinated emulsifier with excellent efficiency from an aqueous fluorinated polymer dispersion. Also provided is a process for producing an aqueous fluorinated polymer dispersion having a reduced content of a fluorinated emulsifier, wherein the process includes: adding an organic carboxylic acid represented by the following formula (1): Q(CH2)m(CH(OH))nCOOH??(1) wherein Q is H, CH3 or COOH, m and n each independently represent 0 or an integer of from 1 to 4, and 4?n+m?1, to an aqueous fluorinated polymer dispersion containing a fluorinated emulsifier; and then contacting with a weakly basic anion-exchange resin to adsorb and remove the fluorinated emulsifier.

Abstract: The invention is a method for making condensation polymers, such as polyethylene terephthalate polyester. The method includes introducing a catalyst system, which includes a coordination catalyst component and an acid component, to a polycondensation reaction.

Abstract: In the heat-shrinkable polyester film of the present invention, the main shrinkage direction is the longitudinal direction. In addition, the hot-water heat shrinkage ratios in the longitudinal direction and the width direction when the film is treated in hot water at 90° C. for 10 seconds, the refractive indexes in the longitudinal direction and the width direction and the natural shrinkage ratio after aging at 40° C. and 65% RH for 700 hours or more are each controlled in predetermined ranges. The heat-shrinkable polyester film of the present invention is manufactured by stretching an unstretched film at a ratio of 2.5 times or more and 6.0 times or less in the width direction at a temperature of Tg+5° C. or more and Tg+40° C. or less, passing the film in an intermediate zone that does not execute an active heating operation, heat-treating the film at a temperature of 100° C. or more and 170° C. or less over a period of 1.0 second or more and 10.

Abstract: A thermoformable packaging material, in an exemplary embodiment, includes a thermoplastic composition that includes a polyethylene terephthalate modified with an isophthalic acid co-monomer. The amount of isophthalic acid co-monomer used is sufficient to render the thermoplastic composition RF sealable.

Abstract: The mixture of the invention contains, for 100 parts in weight of (A)+(B): (A) 10 to 90 parts in weight of at least one non-nanostructured olefinic thermoplastic polymer; (B) 90 to 10 parts in weight of a formulation of at least one elastomer having unsaturated double bonds and capable of reacting with a cross-linking or vulcanization agent, said formulation containing a crosslinking or vulcanization system of said elastomer(s), at least one plasticizer, and the standard additives present in elastomer formulations; (C) up to 100 parts in weight, relative to (A)+(B), of at least one copolymer grafted with polyamide blocks, said copolymer comprising a polyolefin trunk and at least 1.

Abstract: The present invention relates to a new aromatic polyimide composition containing an aromatic polyimide and a polyarylene of a specific type, and to articles and parts of articles made thereof.

Abstract: A filter element, in particular for filtering exhaust gases of an internal combustion engine, includes mutually parallel flow channels, at least two filter segments being provided which each have a subset of flow channels, the filter segments having a spacing from one another and being interconnected via connecting device(s) arranged integrally with the filter segments.

Abstract: The invention provides a process for the preparation of polycarbonate by the melt transesterification process, polycarbonate having a low electrostatic charge obtainable by this process, and moldings or extrudates, in particular optical data storage media or light-diffusing plates, made from this polycarbonate.

Abstract: A joiner panel system is formed from a composite material and includes a panel attached to a deck by a coaming or shoe and attached at its upper edge by a curtain plate that fits around obstructions at the ceiling area. The shoe can be readily installed to an uneven steel deck by stud welding to reduce installation time or attached to a composite material deck. A curtain plate fabrication method uses a laser scan or close range photogrammetry of the overhead area to optimize and automate the cutting of curtain plate sections. The curtain plate sections can then be readily installed in the overhead area. A composite material panel to provide good flame, smoke and toxicity properties and good mechanical properties is formed from a phenolic resin foam material, micro-balloons to reduce the weight and density, and reinforcing fibers and powder material to improve the mechanical properties. The panel can be formed by a method in which the core and face skins are co-cured to provide a good bond.

Abstract: A polymer blend composition, in an exemplary embodiment, includes an impact modified polypropylene copolymer, and a low density polyethylene polymer. The ratio of an amount, by weight, of the impact modified polypropylene copolymer to an amount, by weight, of the low density polyethylene polymer is between about 6:4 to about 9:1.

Abstract: The invention relates to: a label for in-mold forming having excellent suitability for delabeling which comprises a thermoplastic resin film base layer (I) and a heat-sealable resin layer (II) and in which the heat-sealable resin layer (II) has an adhesion strength as measured at 23° C. of 300 gf/15 mm or higher and an adhesion strength as measured at 90° C. of 290 gf/15 mm or lower; and a labeled resin container having the label bonded thereto.

Abstract: In accordance with embodiments provided herein, biodegradable filament suitable for use as fishing line and/or fishing net prepared from a polyester copolymer is provided. Embodiments of biodegradable filament is prepared from a polymer blend comprising from about 60% by weight to about 99.9% by weight of polybutylene succinate (PBS) and from about 0.1% by weight to about 40% by weight of a second polymer selected from the group consisting of polycaprolatone (PCL), polyglycolic acid (PGA), and polylactic acid (PLA).

Abstract: Disclosed is an elastic polyurethane yarn which can exhibit excellent heat resistance even when an unsaturated fatty acid or a heavy metal is attached to the yarn during dyeing at a high temperature, and which has high elastic recovery and high strength/elongation. Specifically disclosed is an elastic yarn comprising a polyurethane mainly composed of a polymer diol and a diisocyanate, which contains (a) a hindered phenol compound, (b) an N,N-dialkylsemicarbazide compound and (c) a nitrogenated aromatic compound, wherein the nitrogenated aromatic compound (c) is contained in an amount of 0.01 to 0.30 weight % inclusive.