Abstract: A process includes forming a bio-derived crosslinking material from biorenewable aconitic acid. The process includes initiating a chemical reaction to form a bio-derived crosslinking material that includes multiple functional groups. The chemical reaction includes converting each carboxylic acid group of a biorenewable aconitic acid molecule to one of the multiple functional groups.

Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, by maintaining the hydrophilicity of superabsorbent polymer and appropriately controlling the crosslinking density, superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption speed can be provided without decrease in absorbency under load.

Abstract: A process includes forming a bio-derived crosslinking material from biorenewable aconitic acid. The process includes initiating a chemical reaction to form a bio-derived crosslinking material that includes multiple functional groups. The chemical reaction includes converting each carboxylic acid group of a biorenewable aconitic acid molecule to one of the multiple functional groups.

Abstract: A powder composition including a plurality of thermoplastic particles having an optimized particle size and particle size distribution is disclosed. The powder composition includes a plurality of thermoplastic particles having a bimodal particle size distribution or a trimodal particle size distribution. Also disclosed are methods of preparing three-dimensional articles, methods of preparing a powder coating, and articles prepared by the methods.

Abstract: Provided are a polyethylene polymer powder and method of producing the same that can improve molding efficiency while maintaining high levels of molded product strength and wear resistance. The polyethylene polymer powder comprises an ethylene homopolymer or copolymer and has an intrinsic viscosity IV of at least 12 dL/g and not more than 35 dL/g, a melting peak full width at half maximum of at least 2° C. and not more than 7° C., a span (laser particle size distribution measurement) of at least 0.9 and not more than 2, and an ?-olefin content of 0 mol % to not more than 1.50 mol %. The method of producing this polyethylene polymer powder includes polymerizing ethylene or ethylene and an ?-olefin by slurry polymerization using a loop reactor. In the polymerizing, supply of a solvent and ethylene or supply of a solvent, ethylene, and an ?-olefin is performed by a plurality of supply lines.

Abstract: Provided are a method for manufacturing a fiber-reinforced resin composite, a fiber-reinforced resin composite manufactured by the manufacturing method, and a molded product, the method comprising the steps of: spinning a fiber filament; coating a surface of the fiber filament by spraying an impregnation resin emulsion onto the spun fiber filament; and forming a fiber strand by bundling the surface-coated fiber filament.

Abstract: Methods for making metal particle-chitin composite materials are described. The methods can comprise contacting an ionic liquid with chitin, thereby forming a mixture; contacting the mixture with a non-solvent, thereby forming a chitin substrate in the non-solvent; collecting the chitin substrate from the non-solvent; deacetylating the collected chitin substrate, thereby forming a deacetylated chitin substrate; contacting the deacetylated chitin substrate with a metal salt, thereby forming an impregnated precursor composite material; and contacting the impregnated precursor composite material with a reducing agent, thereby reducing the metal salt to form a plurality of metal particles dispersed on the chitin substrate and forming the metal particle-chitin composite material.

Abstract: Disclosed are a modified polyimide thin film and a manufacturing method thereof applied for colorless transparent flexible display technology. A material of the modified polyimide thin film has a following structural formula: wherein is selected from one of —R2- is selected from one of —O—, n is a degree of polymerization and n is a natural number. The obtained film possesses good heat resistance, excellent colorlessness and flexibility.

Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.

Abstract: Multilayer barrier films and methods of making the films are provided. The films include a smooth layer and a barrier layer directly disposed on the smooth layer. In some cases, the smooth layer includes a thiol-ene material as a polymeric matrix material. In some cases, the films have a sandwich structure of barrier layer/smooth layer/substrate/smooth layer/barrier layer.

Abstract: A method for the preparation of nanocomposite plastic materials includes coating thermoplastic polymer granules with sizes from 0.5 to 5 mm, using a physical vapor deposition (PVD) sputtering technique, with a coating layer from 1 to 100 nm of a material dispersible in a matrix of said thermoplastic polymer to form coated thermoplastic polymer granules, and thereafter plasticizing and injection moulding the coated thermoplastic polymer granules at high pressure into a closed mould.

Abstract: The present disclosure relates to a non-corrugated foamed structure having an average resilience coefficient of greater than 45% as measured by the ASTM D-2632 method and an average pore size of 99 ?m or less.

Abstract: A formulation of polymeric mixtures for the production of cross-linked expanded PVC foams, of the type comprising PVC, isocyanates, anhydrides and one or more nucleating agents, wherein the nucleating agents are composed of nucleating materials having a porosity of 1-100 nm, preferably 2-50 nm. With respect to known formulations for the production of cross-linked PVC foams, a formulation according to the invention offers the advantage of obtaining the desired degrees of stabilization, nucleation and expansion, even without the use of diazocompounds.

Abstract: Expandable vinyl aromatic polymers comprising: a matrix obtained by polymerizing 50-100% by weight of one or more vinyl aromatic monomers and 0-50% by weight of at least one co-polymerizable monomer; 1-10% by weight, calculated with respect to polymer (a), of an expanding agent embedded in the polymeric matrix; 0-25% by weight, calculated with respect to polymer (a), of a filler comprising carbon coke having an average diameter of between 0.5 and 100 ?m, with a surface area, measured according to ASTM D-3037/89, ranging from 5 to 200 m2/g; 0.05-10% by weight, calculated with respect to polymer (a), of expanded graphite in particle form, with a particle average diameter (size) ranging from 1 to 30 ?m, a surface area, measured according to ASTM D-3037/89, ranging from 5 to 500 m2/g and a density ranging from 1.5 to 5 g/cm3.

Abstract: The present disclosure relates to a method for preparing a foamed structure, comprising: providing a preform prepared from one or more of thermoplastic materials, in which the preform has corresponding shape of the foamed structure; subjecting the preform to a first treatment with a first supercritical fluid at a first temperature and a first pressure; optionally, subjecting the preform treated with the first supercritical fluid to a second treatment with a second supercritical fluid at a second temperature and a second pressure; and foaming the resulting preform into a structure having predetermined shape and size.

Abstract: Provided is a method for producing expanded polypropylene resin particles that can be used as a material for an in-mold expanded molded product which maintains an inherent strength of a base resin despite a high expansion ratio. The method for producing expanded polypropylene resin particles includes producing first-step expanded particles which have a low percentage of wrinkle-induced shrinkage as low as 5% or less, from polypropylene resin particles made of a polypropylene resin composition containing a specific polyethylene resin.

Abstract: The present disclosure is drawn to particulate mixtures, material sets and methods of forming porous 3-dimensional printed parts. The particulate mixtures can include 5 wt % to 40 wt % of a salt having an average particle size from 5 ?m to 100 ?m. The mixture can also include 60 wt % to 95 wt % of a build material for 3-dimensional printing. The build material can include a particulate polymer having an average particle size from 5 ?m to 100 ?m and a melting point from 100° C. to 400° C. The melting point of the particulate polymer can be lower than the melting point of the salt.

Abstract: A curing composition for rubber includes: a metallic co-agent selected from the group consisting of zinc diacrylate and zinc methacrylate; organic peroxide; sulfur; and a hydrotalcite compound. The curing composition and a rubber matrix can be used to make an uncured rubber composition. A cured rubber is obtainable by curing the uncured rubber composition.

Abstract: A resin composition comprising a binder resin (A), an aromatic compound (B) represented by the following general formula (1), and a cross-linking agent (C): where in the general formula (1), each of R1 to R8 respectively independently is hydrogen atom, hydroxyl group, carboxyl group, substituted or unsubstituted aliphatic hydrocarbon group having 1 to 12 carbon atoms, or substituted or unsubstituted aromatic hydrocarbon group having 6 to 12 carbon atoms, “m” is an integer of 0 to 2, when “m” is 0, at least two of R1 to R4, R6, and R7 are hydroxyl group, when “m” is 1 or 2, at least two of R1 to R8 are hydroxyl group, and, when “m” is 2 or more, regardless of the structure represented by general formula (1), three or more benzene rings present may be joined with each other at any positions.

Abstract: Provided is an additive for imparting low heat build-up to a rubber component, wherein the additive includes a tetrazine compound represented by general formula (1): (wherein X1 and X2 are the same or different and represent a hydrogen atom or an alkyl, alkylthio, aralkyl, aryl, arylthio, heterocyclic, or amino group; and each of these groups may have one or more substituents), or a salt thereof.

Abstract: It is an object of the present invention to provide a tire having a tread composed of a rubber composition which is good in performance required for the tread by suppressing a radical chain reaction during kneading. The present invention relates to a tire comprising a tread composed of a rubber composition, the rubber composition comprising 3 parts by mass or more of a carbon black having a nitrogen adsorption specific surface area of 80 m2/g or more, and 0.1 to 10 parts by mass of an anti-aging agent represented by formula (1) or formula (2), based on 100 parts by mass of a rubber component comprising a styrene butadiene rubber.

Abstract: An antistatic composition contains an ambient-temperature molten lithium salt dihydrate, and one of a polymerizable compound, a plastic resin, an elastomer and an adhesive resin in which the lithium salt dihydrate is dispersed. The lithium salt dihydrate contains two types of lithium salts with different molecular weights from each other. The two types of the lithium salts are selected from a group of lithium salts each containing an anion having a fluoro group and a sulfonyl group.

Abstract: A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer is provided.

Abstract: A halogen-free flame retardant thermoplastic polyurethane elastomer composition and product and flame retardant package thereof comprised thermoplastic polyurethane and halogen-free flame retardant package. The halogen-free flame retardant comprises inorganic phosphorus-based flame retardant and can further comprise expandable graphite, melamine or derivatives thereof and organic phosphorus-based flame retardant. The composition is environmentally friendly and safe, the comprehensive mechanical properties thereof are excellent, does not drip during the burning test, passed UL94 with rating of V0?1.5 mm, and the limiting oxygen index thereof can be up to 35%.

Abstract: The present invention provides a polyamide resin composition capable of simultaneously satisfying, with regard to a molded body, suppression of dimensional change upon water absorption, excellent abrasion resistance after water absorption, excellent impact strength, and high surface strength. The present invention relates to a resin composition comprising a glass fiber having a non-circular cross section, and a polyamide resin having a structural unit having more than 6 carbon atoms per 1 amide group, wherein a number average molecular weight of the polyamide resin is 20000 to 40000, and a content of the glass fiber is 15 mass % to 60 mass %.

Abstract: Provided is a resin composition for three-dimensional modeling that can accurately fabricate a three-dimensional modeled object capable of being matched in coefficient of thermal expansion with surrounding members when used as a component in various devices. The resin composition for three-dimensional modeling contains a curable resin and a glass filler, the glass filler having a coefficient of thermal expansion of 60×10?7/° C. or less at ?40 to 50° C. and compositionally containing 90% by mass or less SiO2.

Abstract: The present invention relates to coloured laser-markable and laser-weldable polymeric materials which are distinguished by the fact that they comprise, as absorber, at least one doped tin oxide or indium oxide having a large specific surface area.

Abstract: The present invention relates to a novel stable colloidal polysaccharide suspension containing ?(1?3)-glucan, a cost-effective method for its preparation, and possible uses of these polysaccharide suspensions.

Abstract: The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler including at least carbon black, having a specific surface area CTAB greater than or equal to 130 m2/g, a plasticizing hydrocarbon resin, the vitreous transition temperature of which, Tg, is greater than 20° C., and the softening point of which is less than 170° C., and a cross linking system, the dispersion of the filler in the elastomeric matrix having a Z score greater than or equal to 70.

Abstract: This invention relates to a tire with tread for promoting a combination of cold weather service at low temperatures and wet traction. The tread is of a rubber composition containing cis 1,4-polybutadiene and dual styrene/butadiene elastomers with reinforcing filler comprised of pre-hydrophobated precipitated silica and rubber reinforcing carbon black. The tread rubber composition may contain triglyceride vegetable oil such as soybean oil.

Abstract: Provided is a hose rubber composition having improved adhesiveness to wires while maintaining rubber characteristics, and containing: acrylonitrile-butadiene rubber (NBR) and ethylene-propylene-diene rubber (EPDM) as rubber components; and further containing: a cobalt salt of an organic acid and hydrotalcite, in which 0.5 to 5 parts by mass of the hydrotalcite is contained with respect to 100 parts by mass of the rubber components.

Abstract: Provided is a rubber composition capable of providing rubber parts improved in adhesiveness, a rubber composite improved in adhesion force at an adhesion site of rubber parts, and a rubber crawler having improved adhesion force at an adhesion site of the rubber parts. The disclosed rubber composition contains at least a polymer component: in which the polymer component contains a styrene-butadiene rubber-containing component including either a styrene-butadiene rubber alone or a mixture of a styrene-butadiene rubber and a butadiene rubber; a styrene content in the styrene-butadiene rubber-containing component is less than 20 mass %; and the styrene-butadiene rubber is oil-extended styrene-butadiene rubber.

Abstract: A method for manufacturing an anti-aging rubber is disclosed. The method includes the following steps: adding and mixing one of a carbon tube material and a graphene material into a rubber-processing oil consistently to obtain a rubber-reinforced composite; and mixing the rubber-reinforced composite with a main rubber, a filler and a crosslinking agent.

Abstract: A resin composition for resin moldings includes: a first resin composition containing a first polyolefin, a polyamide, first carbon fibers having an average fiber length of 0.1 mm to 1 mm and a carboxylic anhydride-modified polyolefin as a compatibilizer; and a second resin composition containing a second polyolefin and second carbon fibers having an average fiber length of 6 mm to 20 mm, wherein of the whole quantity of the resin composition for resin moldings, taking the total contents of the first polyolefin and the second polyolefin as 100 parts by mass, a content of the polyamide accounts for 1 part by mass to 50 parts by mass, the total contents for the first carbon fiber and the second carbon fiber account for 1 part by mass to 50 parts by mass and a content of the compatibilizer accounts for 1 part by mass to 10 parts by mass.

Abstract: A resin composition for resin moldings comprises: a first resin composition containing a first polyolefin, a polyamide, carbon fibers having an average fiber length of 0.1 mm to 1 mm and a carboxylic anhydride-modified polyolefin as a compatibilizer; and a second resin composition containing a second polyolefin and organic fibers having an average fiber length of 1 mm to 20 mm, wherein, taking the total contents of the first polyolefin and the second polyolefin as 100 parts by mass, a content of the polyamide accounts for 1 part by mass to 50 parts by mass, a content of the carbon fiber accounts for 1 part by mass to 50 parts by mass, a content of the organic fibers accounts for 1 part by mass to 20 part by mass, and a content of the compatibilizer accounts for 1 part by mass to 10 parts by mass.

Abstract: A resin composition contains a polyolefin; 0.1 parts by mass or more and 200 parts by mass or less of carbon fibers, over 20 parts by mass and 100 parts by mass or less of polyamide, and 1 part by mass or more and 50 parts by mass or less of a compatibilizer relative to 100 parts by mass of the polyolefin; and 2 parts by mass or more and 20 parts by mass or less of a coloring agent having a polar group relative to 100 parts by mass of the carbon fibers.

Abstract: The invention relates to a propylene homopolymer or copolymer having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefin, said propylene homopolymer or copolymer being free of phthalic compound. It further relates to a long-chain branched propylene homopolymer or copolymer (b-PP) having a comonomer in the copolymer selected from ethylene, C4-C20-alpha olefins, said long-chain branched propylene homopolymer or copolymer (b-PP) being free of phthalic compound. As well as their production processes and uses.

Abstract: The invention relates to a polypropylene composition comprising a component A being a propylene copolymer, a component B being a long-chain branched propylene homopolymer or copolymer suitable for pressure pipe applications.

Abstract: The resin composition for an optical material according to the present invention has features that it can implement a low retardation value during the preparation of an optical film, by using a polycarbonate composition satisfying a specific condition as a retardation-adjusting agent while using polymethyl methacrylate not containing a monomer having a cyclic structure at the main chain of the polymer.

Abstract: Described herein are embodiments of compositions and methods relating to three-dimensional (3D) printing. Some embodiments are directed to a composition comprising a polymer with one or more dormant functional groups. According to some embodiments, the polymer may be formed through a controlled radical polymerization method. Some embodiments are directed to a composition comprising a polymer with one or more pendent crosslinkable groups. In some cases, the composition may be used as an “ink” for 3D printing. For example, the composition may be injected into a medium. The composition and/or medium may, in some embodiments, further comprise an initiator and/or a crosslinker. After injection of the composition into the medium, the one or more dormant functional groups and/or one or more pendent crosslinkable groups may be activated, and the polymer may be crosslinked. In certain cases, the crosslinked polymer may be removed from the medium to produce a freestanding three-dimensional structure.

Abstract: This invention relates to flame-retardant modified maleic anhydride resins. This resin copolymer consists of styrene, maleic anhydride and, along with a halogen-free epoxy resin, interacts with a hydroxyl group to become a flame-retardant maleic anhydride copolymer that can be applied to copper clad laminate and prepreg. This composition comprises: (A) one or more epoxy resin mixtures; (B) modified styrene-maleic anhydride curing agent copolymer; (C) additives; (D) inorganic fillers. When the aggregate amount of components (A), (B) and (C) equals 100%, component (A), epoxy resin mixture, is 60%-80% in total weight, component (B), modified styrene-maleic anhydride curing agent copolymer, equals 10%-40% in total weight. This invention uses the copolymer of Styrene and Maleic anhydride to generate a flame-retardant hydroxyl group, and with the phosphorus additive, the above components eventually interact to form a flame-retardant modified maleic anhydride copolymer curing agent.

Abstract: The present invention discloses a glass fiber-reinforced flame retardant PBT composition which includes following components in parts by weight: 35 to 71 parts of a PBT resin; 5 to 30 parts of a flame retardant; and 5 to 50 parts of a glass fiber; based on a total weight of the glass fiber-reinforced flame retardant PBT composition, a content of tetrahydrofuran is less than/equal to 500 ppm and more than/equal to 10 ppm. In the present invention, when the content of tetrahydrofuran which is selected to be added in a formula of the glass fiber-reinforced flame retardant PBT composition, is less than/equal to 500 ppm and more than/equal to 10 ppm based on the total weight of the glass fiber-reinforced flame retardant PBT composition, a flowability and injection molding appearance of the glass fiber-reinforced flame retardant PBT composition can be apparently improved.

Abstract: Stereocomplex biopolymer compositions having tunable and improved mechanical properties and methods of making such compositions are disclosed. The biopolymer compositions include combinations of a matrix-forming polylactic acid comprising an essentially pure enantiomer and a tough polyester to form a polylactic acid matrix. The polylactic acid matrix is further combined with a base polylactic acid comprising an essentially pure opposite enantiomer of the first essentially pure enantiomer of the matrix-forming polylactic acid to form the stereocomplex.

Abstract: Thermoplastic compositions are disclosed comprising a thermoplastic resin, a first impact modifier characterized by core-shell morphology and comprising a functional shell polymer, and a second impact modifier comprising a component capable of reaction with a functional shell polymer. In addition, thermoplastic compositions are also disclosed that comprise a thermoplastic resin and a loose agglomerations of particles that have open spaces, at least 50% of the loose agglomerations comprise open spaces that measure 31 to 60% by area of the loose agglomeration, and particles that are characterized by core-shell morphology. The inventive compositions demonstrate low gloss, high impact strength, good weatherability, and good flow properties.

Abstract: Provided is an automobile interior/exterior member including a thermoplastic resin compound containing, at a predetermined mixing ratio, a component (A) as polycarbonate resin which has a constitutional unit derived from a predetermined dihydroxy compound and a constitutional unit derived from predetermined cyclohexane dimethanol and whose content ratio of the constitutional unit derived from the predetermined dihydroxy compound and the constitutional unit derived from the predetermined cyclohexane dimethanol is 69/31 to 71/29 in units of molar ratio, a component (B) as butyl acrylate methyl methacrylate styrene-based rubber, a component (C) as dibutyl hydroxy toluene, a component (D) as a benzotriazole-based light stabilizer, and a component (E) as a hindered amine-based light stabilizer.

Abstract: An object of the present invention is to provide a PC/ABS-based thermoplastic resin composition and a molded article thereof excellent in impact resistance. A thermoplastic resin composition comprising: a polycarbonate (A); at least one resin (B) selected from the group consisting of an ABS resin, an ASA resin, an AES resin and a SAN resin; an unsaturated dicarboxylic acid anhydride-based copolymer (C); and an additive (D), wherein the additive (D) has a function promoting hydrolysis of polycarbonate, and with a content of (C) is 2 to 25 parts by mass.

Abstract: A polycarbonate resin composition of the present invention comprises: a polycarbonate resin; and a release agent containing a fatty acid ester compound and paraffin wax, wherein the fatty acid ester compound and the paraffin wax are contained in a weight ratio ranging from about 1:about 0.2 to about 1:about 1. The polycarbonate resin composition is excellent in terms of release properties, transparency, heat resistance, hydrolysis resistance, etc.

Abstract: A low smoke density thermoplastic composition comprising, based on the total weight of the thermoplastic composition, 70 to 95 wt % of a polycarbonate copolymer comprising first repeating units and second repeating units, wherein the first repeating units are not the same as the second repeating units, and wherein the first repeating units are bisphenol carbonate units of the formula wherein Ra and Rb are each independently C1-12 alkyl, C1-12 alkenyl, C3-8 cycloalkyl, or C1-12 alkoxy, p and q are each independently 0 to 4, and Xa is a single bond, —O—, —S—, —S(O)—, —S(O)2—, —C(O)—, a C1-11 alkylidene of formula —C(Rc)(Rd)— wherein Rc and Rd are each independently hydrogen or C1-10 alkyl, or a group of the formula —C(?Re)— wherein Re is a divalent C1-10 hydrocarbon group; and the second repeating units comprise bisphenol carbonate units that are not the same as the first repeating bisphenol carbonate units, siloxane units, arylate ester units, or a combination of arylate ester units and siloxane units; and

Abstract: Polyphenylene ether resin composition includes 100 parts by weight of polyphenylene ether resin, 25 to 40 parts by weight of copolymer, and 0.01 to 0.02 parts by weight of initiator. The copolymer is (A) copolymer polymerized of (a) mono-functional monomer, (b1) bi-functional monomer, and (c) tri-functional monomer through radical polymerization, (B) copolymer polymerized of (a) mono-functional monomer and (b2) bi-functional monomer through radical polymerization, or (C) a combination thereof.

Abstract: The present application relates to a curable composition and a use thereof. The present application can provide a curable composition having excellent transparency, heat resistance and adhesion. Such a curable composition can be usefully used in direct bonding between a filler and an optical member of a display device.