Abstract: To provide a composition for powder coating material which can be sufficiently pulverized, and with which a powder coating material capable of forming a coating film excellent in weather resistance and adhesion to the substrate can be obtained; a powder coating material capable of forming a coating film excellent in weather resistance and adhesion to the substrate; and a coated article having a coating film excellent in weather resistance and adhesion to the substrate, on its surface. A composition for powder coating material comprising a polyvinylidene fluoride (A) having a melting point of from 151 to 200° C., and an acrylic resin (B) having a glass transition temperature of from 40 to 90° C. A powder coating material comprising the composition for powder coating material, and a coated article having a coating film formed of the powder coating material.

Abstract: A biodegradable protective device adapted for a mobile device includes a main body and a protective portion. The main body is made of biodegradable plastic. The protective portion is made of biodegradable material, and the protective portion is connected to the main body and used to protect the mobile device from damage.

Abstract: An intermediate transfer member for electrophotography comprising a substrate and a surface layer provided on the substrate. The surface layer comprises a binder resin and a perfluoropolyether. An extraction amount of the perfluoropolyether per 10 mm3 of the surface layer, is 0.10 mg to 5.00 mg, the extraction amount of the perfluoropolyether obtained by immersing the intermediate transfer member into a solvent that can dissolve the perfluoropolyether at 25° C. for 24 hours. A surface of the intermediate transfer member that is not subjected to first and second treatments, has a n-hexadecane contact angle of 55° or more. A surface of the intermediate transfer member that has been subjected to the first treatment, has a n-hexadecane contact angle of 40° or less. A surface of the intermediate transfer member that has been subjected to the second treatment, has a n-hexadecane contact angle of 50° or more.

Abstract: There is provided a resin composition that exhibits excellent heat resistance, heat conductivity, and water absorption. The resin composition comprises a cyanate ester resin (A) represented by formula (I), an epoxy resin (B), and an inorganic filler (C), the content of the inorganic filler (C) being 301 to 700 parts by weight based on 100 parts by weight in total of the cyanate ester resin (A) and the epoxy resin (B) wherein Rs each independently represent a hydrogen atom or a methyl group; and n is an integer of 1 to 50.

Abstract: An object is to provide a laminated polyimide substrate, and a method for the production thereof, in which various properties are ensured and/or provided by effectively controlling changes over time under stringent conditions, while ensuring sufficient adhesion between a polyimide film and metal layer. A laminated polyimide substrate comprises a polyimide layer, an alkali-treated layer derived from the polyimide layer, and a metal layer, arranged in that order, wherein the alkali-treated layer contains an anionic functional group, and is a laminated structure having a layer containing a metal catalyst arranged on the metal layer side and a layer containing a complex of the metal catalyst arranged on the polyimide layer side.

Abstract: A protective film for a solar cell including a barrier film having a multilayer structure in which a substrate layer, an organic-inorganic hybrid layer and an inorganic barrier layer are sequentially stacked and a fluorine-based polymer layer, and a solar cell including the same are provided. Here, at least one of the substrate layer, the organic-inorganic hybrid layer, the inorganic barrier layer and the fluorine-based polymer layer includes at least one of a UV stabilizer and a UV absorbent. The protective film for a solar cell can prevent degradation of efficiency of a solar cell module due to oxygen and moisture penetration, and can prevent degradation of performance of the protective film caused by UV rays, and thus can significantly improve efficiency and lifespan of the solar cell module.

Abstract: The present invention provides a weather-resistant sheet for a solar cell module, which has better adhesion to a water impermeable sheet, better blocking resistance against the water impermeable sheet, and better adhesion to EVA that is a sealant; a weather-resistant sheet for a solar cell module in which a cured coating film layer thereof can suppress UV transmission significantly; a product including the sheet; and a process for producing the sheet.

Abstract: The purpose of the present invention is to provide an adhesive composition having high heat conductivity and excellent adhesion, in which the dispersibility of a heat-conductive filler is controlled, and in which thermal stress during cooling/heating cycle testing can be alleviated. An adhesive composition containing a soluble polyimide (A), an epoxy resin (B), and a heat-conductive filler (C), the adhesive composition characterized by containing three types of diamine residues having a specific structure, and in that the content of the epoxy resin (B) is 30-100 parts by weight with respect to 100 parts by weight of the soluble polyimide (A).

Abstract: A laminate having high adhesion between a fine cellulose layer and a base material, a method for producing the same, and a gas barrier material. The laminate is such that a fine cellulose layer containing fine cellulose having a carboxyl group is laminated on the base material, and a mixed layer in which the fine cellulose is mixed in the base material is further interposed between the base material and the fine cellulose layer. This laminate can be produced by coating the base material with a dispersion containing fine cellulose having a carboxyl group, swelling the base material with the thus coated dispersion, and drying the swollen base material and the coated dispersion. The laminate may also be produced by providing a swollen base material, coating the swollen base material with a dispersion containing fine cellulose having a carboxyl group, and drying the base material and the coated dispersion.

Abstract: The disclosure provides a polyimide-containing layer suitable for being etched by an alkaline solution and a method for etching a polyimide-containing layer. The polyimide-containing layer suitable for being etched by an alkaline solution includes 20-50 parts by weight of a silica dioxide, and 50-80 parts by weight of a polyimide.

Abstract: A molded article, comprises: an insert comprising metal, glass, and combinations comprising at least one of the foregoing; a composition injection molded in a first shot on at least a portion of the insert forming a part; and a thermoplastic material injection molded on at least a portion of the part in a second shot of a double shot process. The composition comprises: a) an aromatic polycarbonate (PC) and poly(1,4-cyclohexane dimethylene 1,4-cyclohexanedicarboxylate) (PCCD), the weight ratio of PC to PCCD being in the range of 30 to 90 PC to 70 to 10 PCCD, b) glass fiber greater than or equal to 0.75 mm in length and the quantity of glass fiber from 1 to 50 wt. % of the composition, and c) the refractive index of the polycarbonate and PCCD closely matching the refractive index of the glass fiber and being in the range of from 1.540 to 1.570.

Abstract: The present invention discloses a high sound absorption coefficient expanded PTFE composite fiber cotton, comprising a melt-blown high polymer fibrous layer and an expanded PTFE film layers or a modified film layer of expanded PTFE, the modified film layer of expanded PTFE is made by conducting modification treatment to a PTFE film; the high sound absorption efficiency expanded PTFE composite fiber cotton is made by combining the melt-blown high polymer fibrous layer and the expanded PTFE film layer or the modified film layer of expanded PTFE. Thus, the present invention with better full-frequency sound absorption capability and marked full-frequency sound absorption effect can be bound in a large area or filled on automobiles' engine hoods, body racks or the inner side face of automobile trunks to substantially absorb automobile noise; it has advantages such as chemical inertness, waterproof, dustproof, permeable filterability, long service life and weldability.

Abstract: A method of and an apparatus for making a composite material is provided. The composite is able to be formed by mixing a binder and a physical property enhancing material to form a mixer. The binder is able to be pitch, such as mesophase pitch. The physical property enhancing material is able to be fiber glass. The mixer is able to be processed through a lamination process, stabilization/cross-link process, and carbonization. The composite material is able to be applied in the field of electronic components and green technology, such as a substrate of a photovoltaic cell.

Abstract: Disclosed is cross-linking process for cross-linking polymeric chains in a coating composition. In one embodiment the process utilizes a Hantzsch dihydropyridine reaction to form reaction products including cross-linking polymeric resin chains having beta-keto ester functions using a source of aldehyde and a source of ammonia or a primary amine to form a permanent dihydropyridine bond between the beta-keto ester functions. The novel cross-linking reaction can occur at lower temperatures compared to typical cross-linking reactions and can occur in aqueous solutions that have a neutral to mildly alkaline pH of from 6 to 11. The novel cross-linking reaction provides many advantages to performing cross-linking of polymeric chains in coating resins.

Abstract: The invention relates to a chain guide, respectively a chain tensioner for use in a lubricated sliding system, comprising a surface layer or bearing or comprising a sliding element comprising a surface layer, the surface layer being mainly made of a polymeric material containing a matrix polymer and optionally other components dispersed in said matrix polymer, wherein the matrix polymer consists of a semi-crystalline polyamide (SCPA) having a tensile modulus at 140° C. of at least 800 MPa (measured by the method according to ISO 527-1A). The invention also relates to a power train drive system comprising an engine, a transmission differential and a drive shaft system, a drive chain and a plastic component comprising a sliding element in contact with the lubricated drive chain, wherein the chain guide, the chain tensioner, respectively the sliding element has a coefficient of friction (Co F), measured in lubrication oil at 140° C. at a nominal contact pressure of 1 MPa and a speed of 1 m/s, of at most 0.07.

Abstract: The present disclosure, in one aspect, relates to a polyamide solution including an aromatic polyamide and a solvent, wherein the aromatic polyamide includes at least two types of constitutional units, and a change rate of coefficient of thermal expansion (CTE) of a cast film produced by casting the polyamide solution on a glass plate and CTE of the same cast film after being subjected to a heat treatment at temperature of 200° C. to 450° C. (=CTE after heat treatment/CTE before heat treatment) is 1.3 or less.

Abstract: Disclosed is a coating agent composition comprising (A) a polytetrafluoroethylene resin emulsion, (B) an urethane resin emulsion, and (C) a hydrogenated NBR emulsion, and preferably further comprising (D) an acrylic resin emulsion and/or an ethylene-vinyl acetate copolymer resin emulsion. When this coating agent composition is used as a surface coating agent for general vulcanized rubber-molded products, evaluation of adhesion to rubber by an adhesion test is hardly impaired, and bleeding evaluation, evaluation of the flexibility of the coating agent by a bending test, and evaluation of the reduction in adhesion to rubber due to bloom from the rubber by a high-temperature and high-humidity test are all satisfied.

Abstract: A laminate of a rubber layer (A) and a fluororesin layer (B) on the rubber layer (A), wherein the rubber layer (A) is a layer made of a rubber composition for vulcanization, the rubber composition for vulcanization contains an unvulcanized rubber (a1); at least one compound (a2) selected from the group consisting of a 1,8-diazabicyclo(5.4.0)undec-7-ene salt, a 1,5-diazabicyclo(4.3.0)-non-5-ene salt, 1,8-diazabicyclo(5.4.0)undec-7-ene, and 1,5-diazabicyclo(4.3.0)-non-5-ene; magnesium oxide (a3); and silica (a4), the amount of the compound (a2) is larger than 1.0 part by mass and not larger than 5.0 parts by mass, for each 100 parts by mass of the unvulcanized rubber (a1), the fluororesin layer (B) is a layer made of a fluoropolymer composition, and the fluoropolymer composition contains a fluoropolymer (b1) having a copolymer unit derived from chlorotrifluoroethylene.

Abstract: The present invention is directed to polyamides that are crosslinkable in the presence of water having desirable properties including long open time, good adhesion and cold flexibility. Notably, the polyamides of the present invention are suitable for structural and semi-structural bonding applications utilizing a hot melt process, roll coater or bead extrusion process.

Abstract: The present invention relates to a film for a tire inner liner including a base film layer including a copolymer or a mixture of a polyamide-based resin and a polyether-based resin, and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and having low shrinkage rate when elongated at a high temperature and then cooled to room temperature, and a method for manufacturing the same.