Abstract: In an electrolyte membrane (10) for a solid polymer fuel cell, sealing ribs (12) of a predetermined height made of an electrolyte resin is formed integrally with the electrolyte membrane (10). Using the electrolyte membrane, a membrane-electrode assembly (20) is formed, which is further processed into a fuel cell (30). Thus, an electrolyte membrane and a membrane-electrode assembly which are capable of improving the sealing characteristic when incorporated into a fuel cell are obtained. Besides, a fuel cell improved in the sealing characteristic is obtained.

Abstract: Disclosed herein is an article comprising a lens having a width of 0.1 millimeters to 100 millimeters, a length of 0.5 millimeters to 500 millimeters, and a thickness of 0.2 millimeters to 5 millimeters; and the lens transmits light having a wavelength of 600 nanometers to 1600 nanometers, wherein the lens comprises a polymer and the polymer comprises a polyimide comprising structural units derived from specific combinations of compounds wherein the lens is transparent and dimensionally stable at a wall thickness of 0.2 millimeters to 5.0 millimeters and remains transparent and dimensionally stable after being (a) exposed to a precondition of 60° C./60% relative humidity for 120 hours and (b) then subjected to a lead free solder test having a peak temperature of 260° C. for up to 30 seconds.

Abstract: A method for producing a proton-conducting, polyazole-containing membrane, in which A) a composition containing polyphosphoric acid and at least one polyazole and exhibiting a solution viscosity in the range from 10 Pa·s to 1000 Pa·s, measured to DIN 53018 at the temperature at the orifice during production of the membrane, is pressed through an orifice at a temperature in the range from 25° C. to 300° C., and B) the composition is then solidified.

Abstract: A multi-layer film that includes at least one polymeric skin layer and polymeric “A” layer is provided. The polymeric “A” layer is formed from a composition that includes a soft or base polymer matrix and a hard polymer substantially disposed therein to form a reinforcing structure in the polymer matrix. The multi-layer film may also include a polymeric “B” layer that has a hard polymer substantially disposed therein. Methods of forming a multi-layer film are also provided.

Abstract: Provided herein is a method of manufacturing a polyolefin sheet using a circulating belt and a first roller, comprising the steps of: heating polyolefin resin to melt polyolefin; and forming the molten polyolefin into a polyolefin sheet using an extruding die, wherein the circulating belt includes a plurality of second rollers (cooling rollers) which come into contact with an inner side of the circulating belt and are arranged in a circle around the circulating belt running in a circle and which cool the rotating circulating belt; a temperature of the circulating belt is maintained at 0˜30 to cool the polyolefin sheet such that the polyolefin sheet has desired thickness, a temperature of the first roller is set to a specific temperature between 40 and 120, and the temperature of the first roller is maintained in a temperature range of the specific temperature ±5; and a linear speed of the molten polyolefin sheet is substantially equal to a rotation speed of the circulating belt or the first roller to obtain a

Abstract: Provided is an electrolyte membrane containing: a reinforced inner layer; and an unreinforced outer layer on one or each side of the reinforced inner layer, wherein the reinforced inner layer includes an inner ion exchange resin reinforced with a non-woven fabric composed of a melt moldable fluororesin in the form of a continuous fiber, wherein a number of intersecting points of the continuous fiber are fused and/or bonded, and wherein the unreinforced outer layer includes an outer ion exchange resin, which may be the same as or different from the inner ion exchange resin. Also provided is a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the membrane electrode assembly contains the above-mentioned polymer electrolyte membrane.

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: Provided is a functional fiber and a fiber aggregate for realizing various functions, an adhesive for easily bonding electronic components, and a method for manufacturing the same. Particularly, a fiber extended in a length direction includes a carrier polymer and a plurality of functional particles, wherein the plurality of functional particles are embedded in the carrier polymer and physically fixed to the carrier polymer to be integrated.

Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.

Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.

Abstract: A heat-insulating transparent PVC sheet useful to replace the glass or affixed to the glass is made by a non-coating process for cutting-off infrared and ultra-violet, which production method is an improved traditional process for producing the PVC sheets, and in the production a specific formula of PVC blends containing PVC resin, plasticizer, inorganic heat-insulating particles and other additives is directly used to produce the PVC sheet to keep the properties of PVC and to provide transparency, low haze and an excellent effect for cutting-off infrared and ultra-violet.

Abstract: Methods of improving polyethylene stretch film that include providing interpolymer resin particles, forming a polyethylene blend composition by blending from about 0.1 to about 10 percent by weight based on the weight of the blend composition of interpolymer resin particles into one or more polyethylene resins; and forming a film from the polyethylene blend composition. The interpolymer resin particles contain a styrenic polymer intercalated within a first polyolefin, where the first polyolefin is present at from about 20% to about 80% by weight based on the weight of the particles, and the styrenic polymer is present at from about 20% to about 80% by weight based on the weight of the particles.

Abstract: A process for obtaining an elastomer in solid phase from its polymer solution which comprises: (a) optionally pre-concentrating the polymer solution coming from the production system by a flash process; (b) subjecting the polymer solution to a concentrating stripping operation by water vapor in a mixing device comprising internal moveable mixing parts which transfer minimal mechanical energy to the solution in the form of friction heat; and (c) subjecting the concentrated polymer phase coming from (b) to devolatilization by mechanical energy and/or vapor flow to remove residual solvent.

Abstract: A process for controlling the crystallization of certain hydrophobic active pharmaceutical ingredients (APIs) from a supercooled liquid state by hot-melt extrusion processing is described. Also described is a pharmaceutical composition comprising a solid crystalline dispersion of a cholesterol ester transfer protein inhibitor in a hydrophilic excipient matrix. In the process of the present invention, the API is fed to an extrusion system in a crystalline state contemporaneously with carrier excipients where it is first converted to a non-crystalline state by the application of heat and then subsequently recrystallized in-situ by the removal of heat and application of shear. Recrystallization of the API is controlled by carrier formulation design and the hot-melt extrusion process parameters; i.e. barrel temperature profile, feed rate, etc.

Abstract: The present invention relates to a membrane, in particular to a hollow fiber membrane comprising a membrane, comprising at least two layers, wherein the at least two layers each comprise at least one layer forming material comprising at least one polymer and the at least two layers differ from each other with respect to the layer forming material, wherein the at least two layers are at least partly covalently and delamination free bonded to each other. The present invention relates furthermore to a method of production of the said membrane as well as to its use.

Abstract: Disclosed herein is a thermoplastic cellulosic composition for preparing a cellulose-based masterbatch and/or a fiber with an improved breaking elongation. In one example, the thermoplastic cellulosic composition includes an esterified cellulose present in a range of about 77 wt % to about 95 wt %, polyethylene glycol present in a range of about 4.5 wt % to about 15 wt %, a bifunctional reactant present in a range of about 0.01 wt % to about 3 wt %, an initiator present in a range of about 0.01 wt % to about 0.15 wt %, and a dispersing agent present in a range of about 0.01 wt % to about 5 wt %.

Abstract: The invention relates to a device comprising a substantially cylindrical housing (2) in a mixing region (7). Said housing comprises at least one outlet channel (15) having an outlet opening (6) in the mixing region (7) and at least one rotationally supported mixing shaft (4) having at least one discharge element (3) having an effective surface. The discharge element (3) can be guided past the outlet opening (6) when used properly, wherein a projection of the effective surface (8) parallel to the outlet channel axis covers the smallest outlet channel cross section of the outlet opening (6) at least once per revolution of the discharge element (3) by at least 45%, preferably by at least 50%, particularly preferably by at least 55%, and most particularly preferably by at least 60%.

Abstract: A method for producing a laminate, including a polymerization step of synthesizing a polyglycolic acid-based resin at a temperature of 200 to 220° C.; a mixing step of mixing 100 parts by mass of the polyglycolic acid-based resin with 0.016 parts by mass or more of a heat stabilizer under a condition that a highest temperature is between 275° C. and 295° C., thereby preparing a polyglycolic acid-based resin composition; and a forming step of forming the polyglycolic acid-based resin composition at a temperature of 230 to 265° C., thereby fabricating a laminate including a layer made of the polyglycolic acid-based resin composition.

Abstract: A polyester heat storage material and a preparation method thereof are disclosed. The repeating unit of the polyester's main chain comprises a diacid fragment and a polyalkylene glycol fragment. The method for preparing the polyester heat storage material includes melting diacid anhydride and polyalkylene glycol and conducting the polycondensation reaction.

Abstract: In order to provide a non-woven fiber fabric, in particular, in the form of a flat material or as part of a flat material which can be used as a biodegradable material in medicine, in particular, as an implant or carrier material for living cells (tissue engineering) but also a non-woven fiber fabric which can be used in food technology in a variety of applications, in particular, as a preliminary product for foods, a non-woven fiber fabric is provided containing fibers consisting of a gelatin material, wherein the thickness of the fibers is on average 1 to 500 ?m and wherein the non-woven fiber fabric has a plurality of areas, at which two or more fibers merge into one another without any phase boundary.

Abstract: There is provided a polylactic acid resin composition having elevated impact resistance and/or elevated heat deflection temperature, the composition comprising polylactic acid as a major phase. There is also provided an article made of this composition and a masterbatch for producing this composition through dilution with polylactic acid. Finally, there is also provided a process for making such a composition, the process comprising the step of compounding together the following ingredients: polylactic acid, a mineral filler, a chain mobility additive, optionally an impact modifier, and optionally a chain extender, thereby producing the resin composition.

Abstract: Disclosed herein is a thermoplastic composition comprising, based on the total weight of the composition, (a) from 10 to 80 wt. % of a polybutylene terephthalate; (b) from 10 to 80 wt. % of a copolyestercarbonate having a number average molecular weight of more than 21,500 Daltons; (c) from 7 to 30 wt. % of a particulate filler; (d) from 0.1 to 10 wt. % of a fluoropolymer; and (e) from 3 to 25 wt. % of a polymeric impact modifier. A method of making the composition and an article comprising the thermoplastic composition are also disclosed.

Abstract: A method of making foamed articles that includes providing a copolymer composition, combining the copolymer composition and cellulosic fibers, applying heat, mixing energy and pressure to the copolymer composition and cellulosic fibers mixture to form a foamable mixture, and forming the foamed article by placing the foamable mixture in a molding or extruding operation. The copolymer composition includes a copolymer of 51% to 99.9% of primary monomers, 0.1% to 49% of anhydride containing monomers, and 0% to 25% of other monomers and 0% to 30% of elastomeric polymers. This is combined at 30% to 99.99% copolymer composition with 0.01% to 70% by cellulosic fibers such that the copolymer anhydride groups react with the cellulosic fiber hydroxyl groups to produce a blowing agent byproduct to form a foamable mixture. The foamed article has a density of not more than 1.3 g/cm3.

Abstract: Disclosed are artificial marble and a method of manufacturing the same. The artificial marble has a natural aesthetic pattern like a flowing pattern to exhibit an equivalent or superior texture to that of natural marble. Further, as the artificial marble is prepared by placing an uncured marble resin sheet or block in a mold and pressing, the artificial marble has excellent mechanical strength and gloss and does not contain bubbles therein even after pressing at a low temperature and a low pressure.

Abstract: Angular extrusion (AE) methods for creating monolithic polymers with high entanglement density, but small crystallite size, are disclosed. The methods involve consolidating granular polymer in an extrusion channel having at least one strain-imposing feature.

Abstract: Provided is a method for manufacturing a sheet for a solar cell encapsulant which has stability against yellowing after a crosslinking process and thus good appearance with improved productivity in the sheet manufacture process, specifically to a method for manufacturing a sheet for a solar cell encapsulant characterized by melt-mixing a resin composition with an organic peroxide, a co-crosslinking agent and a silane coupling agent at the degradation temperature of the organic peroxide or less, wherein the resin composition is obtained by melt-mixing EVA resin with an antioxidant, an UV absorber and a light stabilizer at 80-220° C., and forming a sheet from the obtained melt-mixed resin composition.

Abstract: Unitary films and laminates thereof are provided having at least first and second film segments which extend adjacent one another and are permanently joined together. The first and second film segments are joined at an interface, wherein at the interface a tip of the second segment overlaps the first segment in the cross-direction of the film. The film has a thickness “T” at the tip of the second segment, and the second segment has a thickness “t” at a distance T in the cross direction from the tip of the second segment. The ratio T/t is suitably greater than about 3. The unitary films and laminates thereof are well suited, for example, for use as outer covers in personal care articles.

Abstract: An electrospinning process and apparatus for forming aligned electrospun fibers. A time-dependent (AC) voltage is applied to a multi-electrode collector in order to temporally control the location and orientation of fiber deposition.

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 molding and sheet extrusion/calendering. Advantageously, the microcrystalline polyamide is such that its degree of crystallinity is greater than 10% and less than 30% (1st DSC heating according to ISO 11357 at 40° C.

Abstract: Disclosed are an industrial high tenacity polyester fiber with superior creep properties and a method of preparing the fiber. The industrial polyester fiber has a mono-filament fineness of 5 to 15 dpf, an intrinsic viscosity of 0.8 to 1.25 dl/g, and a creep change rate of 4.7% or less, wherein the creep change rate is measured at 160° C. for 24 hours while giving a load corresponding to a strain of 3% after heat-treating the fiber at 220° C. for 2 minutes while giving a load of 1 g/d, and the load corresponding to the strain of 3% is based on a value obtained from a load-strain curve of the fiber before heat-treatment.

Abstract: The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action.

Abstract: A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte by controlling the salt doping level.

Abstract: This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web.

Abstract: An improved extrusion head assembly is provided. One embodiment of the head assembly includes a pipe and profile co-extrusion head assembly with an integrated co-extrusion adapter. Another embodiment includes a double compression extrusion head for pipe extrusion.

Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.

Abstract: Provided are polymeric films that include a polyolefin and at least one cavitating agent including a poly(alkylene terephthalate) of formula (I); wherein n, representing the number of methylene segments in the repeating unit, is 3 or an integer greater than or equal to 5; p, representing the degree of polymerization, is an integer greater than 1. The polymeric film may be an opaque polymeric film. A preferred cavitating agent is poly(trimethylene terephthalate). Also provided are methods for making such polymeric films.

Abstract: The present invention discloses a molded article with an antimicrobial property, and a manufacturing method thereof. The molded article can prevent contact of bacteria or viruses by combining the Kimchi lactic acid bacteria culture fluid having antibacterial and antivirus effects with a raw material. The molded article needing the antimicrobial effect is provided with the antimicrobial property, by incorporating the Kimchi lactic acid bacteria culture fluid with a wide antibacterial spectrum singly or in combination with nano metal particles. The Kimchi lactic acid bacteria culture fluid is combined in the molding step of the article, for reducing the manufacturing time and simplifying the manufacturing process.

Abstract: The present invention provides a polymer fiber containing a flame retardant. In particular, the invention provides a fiber containing poly(trimethylene terephthalate) and a flame retardant that melts at a temperature of equal to or below 280° C. The present invention also provides a process for producing such a fiber, and a material incorporating such fibers.

Abstract: Embodiments of the invention are directed to resin-soluble thermoplastic veils for use in liquid resin infusion processes, methods of manufacturing resin-soluble thermoplastic veils for use in liquid resin infusion processes, and methods of manufacturing composite articles using resin-soluble thermoplastic veils for use in liquid resin infusion applications. The resin-soluble thermoplastic veils according to embodiments of the invention and of which function as a toughening agent in composites having the veil incorporated therein have improved characteristics including, but not limited to, increased uniformity and decreased thickness relative to prior art veils. These characteristics translate into improvements in the processing of a composite article including, but not limited to, a substantial or complete elimination in premature dissolution of the veil during cure.

Abstract: A system and method for forming an article from thermoplastic material and fiber. The method includes heating thermoplastic material to form a molten thermoplastic material for blending with the fiber. The molten thermoplastic material is blended with the fibers to form a molten composite material having a concentration of fiber by weight. The molten composite material may then be extruded through dynamic dies to deliver discrete controlled material that is gravitated onto a lower portion of a mold. The lower portion of the mold may be moved in space and time while receiving the flow of composite material to deposit a predetermined quantity of molten composite material thereon conforming to mold cavities of the lower and an upper portion of the mold. The upper portion of the mold may be pressed against the predetermined quantity of molten composite material and closing on the lower portion of the mold to form the article.

Abstract: A 10-50 g/d high strength polyethylene fiber and preparation method thereof are provided, which are in the high molecular material field. Said fiber is obtained by cross blend melt spinning method, and its strength is 10-50 g/d, its modulus is 400-2000 g/d. The material used by said cross blend melt spinning method is obtained by mixing low density polyethylene with molecular weight of 2/5-500,000 and super molecule weight polyethylene with molecular weight of 120-7000,000 in the proportion of 2-10:1. Flow modifier or diluent is not additionally added in the present invention, raw material consumption is low, extra high pressure is avoided, energy consumption and cost of production are low, technological process is simple, single line capacity is easily raised, and large scale industrial production can be realized.

Abstract: The present invention relates to recycled poly(trimethylene terephthalate), and products and processes using the recycled poly(trimethylene terephthalate).

Abstract: Environmental control in air handling systems that are required to provide highly effective filtration of noxious gases particularly within filter canisters that are ultrasonically welded enclosures is provided. In one embodiment, a filtration system utilizes a novel zeolite material that has been hardened to withstand ultrasonic welding conditions in order to reduce the propensity of such a material to destabilize and/or dust. Such a hardened zeolite thus enables for trapping and removal of certain undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment, particularly in combination with metal-doped silica gel materials.

Abstract: The invention relates to the use of polyphosphonates, copoly(phosphonate ester)s, copoly(phosphonate carbonate)s, and their respective oligomers, as flame retardant additives for polyester fibers to impart fire resistance while maintaining or improving processing characteristics for melt spinning fibers.

Abstract: A multi stage auger system having a hopper with a first diameter opening tapering to a second smaller diameter opening, coupled to an auger tube at the second smaller diameter opening. An auger entry spiral with generally helical shape and a sweep arm coupled thereto, the spiral and the sweep arm skimming inside the product hopper to entrain the semi-solid materials from the hopper wall and, through the shape of the spiral, moving materials through the hopper from the first opening towards the second smaller opening. During this entrainment and movement by the spiral and sweep arm a space is left between the spiral and the sweep arm to remove air and voids from the semi-solid material through the movement. The auger has a first coarse pitch providing further removal of air/void spaces and a second finer pitch providing further movement under higher pressures near an exit of the auger.

Abstract: Inorganic fibers including calcia, alumina, potassia and optionally sodia as the major fiber components are provided. Also provided are methods of preparing the inorganic fibers and of thermally insulating articles using thermal insulation comprising the inorganic fibers. The inorganic fibers are soluble in physiological saline solutions, do not form crystalline silica, and are resistant to temperatures of 1260° C. and greater.

Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, including: one or a plurality of extruders; a die into which one or a plurality of resin materials are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and the stabilizers rotate in one direction around the central axis of the cylindrically-shaped resin materials.

Abstract: A polyurethane elastomeric filament-containing weft knit fabric is obtained by plating a bare yarn of highly fusible, alkali-resistant polyurethane elastomeric filament having at least 50% retention of tenacity following dry heat treatment under 100% extension at 150° C. for 45 seconds, a melting point of 180° C. or below, and at least 60% retention of tenacity following treatment in a 2 g/L aqueous sodium hydroxide solution under 100% extension at 100° C. for 60 minutes at every loop of a weft knit fabric having a 1×1 rib knit structure or a center yarn-containing reversible knit structure composed of at least one type of non-elastomeric yarn, then heat setting the plated structure so as to thermally fuse the highly fusible, alkali-resistant polyurethane elastomeric filaments to each other or to the non-elastomeric yarns at crossover points therebetween.

Abstract: A powder which is capable of being used in a layer-by-layer process in which regions of the respective pulverulent layer are selectively melted and, after cooling, are fixed, contains a mixture of diacid-regulated polyamide and diamine-regulated polyamide and/or diacid-regulated copolyamide and diamine-regulated copolyamide.

Abstract: The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity.