Abstract: The present disclosure relates generally to polyurethane matrix composite materials, for example, suitable for making an exterior cladding product for houses and other buildings. The present disclosure relates more particularly to a polymer matrix composite material including a polyurethane matrix and an inorganic filler in a range from 45% to 85% by weight of the composite material. The inorganic filler includes a first substance from the group consisting of calcium carbonate, sand, talc, kaolin clay, dolomite, feldspar and mica and any mixture thereof, and fly ash, and/or an iron oxide in a range from 0.5% to 7% by weight of the inorganic filler.

Abstract: A melt-formable ethylene-vinyl alcohol copolymer composition and a multilayer structure are substantially free from heat coloration. The melt-formable ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) an alkali earth metal compound; and (C) an iron compound; wherein the iron compound (C) is present in an amount of 0.01 to 20 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

Abstract: Embodiments disclosed herein relate to polymer resins having a first thermoset and one or more additional components (e.g., a second thermoset and/or a thermoplastic), composite laminates including the same, methods of making and using the same, and composite laminate structures including the same.

Abstract: A manufacturing method for a thermoplastic aromatic polyester resin composition is disclosed having a step of blending: a thermoplastic aromatic polyester resin A; an alkali composition B containing a thermoplastic aromatic polyester resin a and an alkali compound b; and a carbodiimide compound C. The alkali composition B is preferably a composition in which an aqueous solution of the alkali compound b is melt-kneaded with the thermoplastic aromatic polyester resin a. The carbodiimide compound C preferably contains an aromatic carbodiimide compound. The alkali compound U content in the thermoplastic aromatic polyester resin composition is preferably 10 ppm by mass or more and 100 ppm by mass or less.

Abstract: Scratch-resistant thermoplastic polymer compositions (P) comprising 90 to 99.9 wt.-% of at least one styrene-based copolymer, 0.1 to 10 wt.-% of an aliphatic amide wax additive comprising at least one aliphatic amide wax composition having a melting point in the range of 80° C. to 115° C., and optionally at least one colorant, dye, pigment and/or further additive, have improved properties.

Abstract: A method of reducing gloss that results in a polyvinyl chloride (PVC) component that exhibits a reduced level of surface gloss; wherein, the PVC or other thermoplastic resin component comprises: a PVC resin; one or more process aids comprising at least one base polymer with one or more of the process aids being functionalized with about 0.5 wt. % to about 35 wt. % of a reactive epoxy, hydroxyl, or carboxylic acid functional group based on the total weight of the process aids; and optionally, at least one impact modifier. The PVC or other thermoplastic resin component exhibits a gloss reduction of at least 5 points measured at an angle of 85 degrees or less when compared to a similar PVC component in which the process aids are not functionalized.

Abstract: A resin composition that includes a maleimide compound, an alkenyl-substituted nadimide, a silane compound having a styrene skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.

Abstract: The present invention provides a polyamide composition containing 50 to 99 parts by mass of an aliphatic polyamide (1A) formed from a diamine and a dicarboxylic acid, and 1 to 50 parts by mass of a semi-aromatic polyamide (1B) containing a dicarboxylic acid unit that includes at least 75 mol % of isophthalic acid and a diamine unit that includes at least 50 mol % of a diamine of 4 to 10 carbon atoms, wherein the tan ? peak temperature of the polyamide composition is at least 90° C., and the weight average molecular weight Mw of the polyamide composition satisfies 15,000?Mw?35,000. The invention also provides a molded article or the like formed using the polyamide composition.

Abstract: Curable compositions, cured compositions formed from the curable compositions, and articles containing the cured compositions are provided. The curable compositions include (a) a curable component that includes (1) an epoxy resin, (2) a polyamide composition, (3) a multifunctional amine compound, and (4) a multifunctional (meth)acrylate compound and (b) an optional inorganic filler. The curable composition can result in the formation of cured compositions with properties such as good tensile strength, good elongation at break, good overlap shear strength, good adhesion to substrates such as metal substrates, or a combination thereof.

Abstract: The present invention relates to a polymer composition comprising polyphenylene sulphide (PPS), polyamide 6 (PA6), reinforcing agents, wherein the weight ratio of PPS/PA6 is at least 2, with the proviso that the composition does not comprise an elastomer or comprises an elastomer in an amount not exceeding 1 wt. %. The present invention also relates to articles incorporating the polymer composition and the use of polyamide 6 (PA6) as a heat-aging stabilizer in a polymer composition.

Abstract: A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.

Abstract: The present invention relates to a polymer film (P), comprising at least one copolyamide, wherein the copolyamide has been prepared by polymerizing at least one lactam (A) and a monomer mixture (M). The present invention further relates to a process for producing the polymer film (P) and to the use of the polymer film (P) as packaging film.

Abstract: Provided is a vinyl chloride resin molded product that has a low peak top temperature of loss modulus E? after a heat aging test in the case of being lined with a foamed polyurethane molded product. A vinyl chloride resin composition comprises: (a) a vinyl chloride resin; (b) a plasticizer; and (c) a copper oxide.

Abstract: An entrained polymer includes a base polymer, an active agent that is immiscible with the base polymer and reacts with a selected material, and a channeling agent that is a water insoluble polymer, is immiscible with the base polymer, and has an affinity to transmit a selected material through the entrained polymer at a faster rate than in solely the base polymer.

Abstract: The invention relates to a composition comprising: (A) an amorphous or quasi-amorphous copolymer containing polyamide blocks and containing polyether blocks, the polyamide blocks comprising cycloaliphatic units; (B) a semicrystalline polymer or copolymer comprising amide units; (C) another polymer or copolymer comprising amide units; and (D) a multilayer polymer comprising at least a layer (D1) and a layer (D2). This composition has advantageous properties of transparency and impact strength, especially for the manufacture of sports articles.

Abstract: The present invention relates to a composition in the form of sheet or layer comprising a layer of an aromatic polymer and a layer of metal adhering to at least one side of said polymeric sheet, and to its uses.

Abstract: Provided is a polyester-based resin composition capable of giving a molded article excellent in transparency and gas-barrier property even though the molded article requires stretching treatment, and also provided is a method for producing the composition. The method for producing a polyester-based resin composition includes a step of obtaining a master batch (M) containing a polyester resin (A) having a cyclic acetal structure or an alicyclic hydrocarbon structure, and a polyamide resin (B), and a step of melt-kneading the master batch (M) with a polyester resin (R) in which 70 mol % or more of the dicarboxylic acid unit is derived from an aromatic dicarboxylic acid and 70 mol % or more of the diol unit is derived from an aliphatic diol, thereby giving a polyester-based resin composition, in this order,. The glass transition temperature of the polyester resin (A) is 105° C. or lower, the content of the polyester resin (A) in the polyester-based resin composition is 0.5 to 15.

Abstract: The present invention provides an asymmetric modified CMS hollow fiber membrane having improved gas separation performance properties and a process for preparing an asymmetric modified CMS hollow fiber membrane having improved gas separation performance properties. The process comprises treating a polymeric precursor fiber with a solution containing a modifying agent prior to pyrolysis. The concentration of the modifying agent in the solution may be selected in order to obtain an asymmetric modified CMS hollow fiber membrane having a desired combination of gas permeance and selectivity properties. The treated precursor fiber is then pyrolyzed to form an asymmetric modified CMS hollow fiber membrane having improved gas permeance.

Abstract: Provided is an ethylene-vinyl alcohol copolymer composition having improved oxygen barrier properties, wherein the ethylene-vinyl alcohol copolymer composition comprises an ethylene-vinyl alcohol copolymer; and a manganese content of about 0.01 ppm to 0.49 ppm.

Abstract: Embodiments relate to a heat-resistant resin composition having an enhanced heat resistance and a molded article obtained therefrom. The resin composition according to the embodiments has a high heat resistance, so that it is capable of forming an excellent appearance without being deformed even though it is subjected to a process that is carried out at a high temperature of 205° C. or higher, such as an on-line painting. Thus, it can be advantageously used as, for example, an exterior material of various transportation means or a housing of electric and electronic products.