Abstract: A solid polymer electrolyte membrane and a catalytic layer are properly assembled even when the solid polymer electrolyte membrane and an ion exchange resin in the catalytic layer are formed of different materials. In a fuel cell, a solid polymer electrolyte membrane 20 is provided with a first solid polymer electrolyte membrane 200, and second solid polymer electrolyte membranes 202 and 204 provided at respective sides thereof. The second solid polymer electrolyte membranes 202 and 204 are formed of the same material as the ion exchange resin (not shown) included in a catalytic layer 26 and a catalytic layer 30.

Abstract: An object of the present invention is to provide a proton conducting polymer membrane that has excellent mechanical properties and high methanol barrier properties, in addition to high proton conductivity, and is useful as an electrolyte in polymer electrolyte fuel cells and direct methanol fuel cells. The present invention provides a proton conducting polymer membrane having a product of a proton conductivity at 23° C. and a methanol barrier coefficient at 25° C. in an aqueous methanol solution of a specified concentration being a specified value or more. The present invention also provides a proton conducting polymer membrane having an ion exchange capacity of 0.3 milli-equivalent/g or more, and having a crystalline phase.

Abstract: A solid polymer electrolyte membrane and a catalytic layer are properly assembled even when the solid polymer electrolyte membrane and an ion exchange resin in the catalytic layer are formed of different materials. In a fuel cell, a solid polymer electrolyte membrane 20 is provided with a first solid polymer electrolyte membrane 200, and second solid polymer electrolyte membranes 202 and 204 provided at respective sides thereof. The second solid polymer electrolyte membranes 202 and 204 are formed of the same material as the ion exchange resin (not shown) included in a catalytic layer 26 and a catalytic layer 30.

Abstract: The present invention relates to a proton-conductive polymer membrane comprising a polymer compound which has structural repeating units represented by the following formula (1) in which the aromatic units are partially substituted with proton-conductive substituents, wherein the membrane has a solubility in methanol at room temperature of less than 0.01% by weight or solubility in N-methyl-2-pyrrolidone at 5° C. of less than 5% by weight. In the formula, Ar1 represents a divalent aromatic unit and x represents an integer of 0 to 2. Also, the present invention provides a simple process by which production costs are substantially decreased, for obtaining a proton-conductive polymer membrane having properties applicable in a polymer electrolyte fuel cell.

Abstract: A polyolefin resin composition comprising (A) a polyolefin, and (B) 0.1 to 100 parts by weight, per 100 parts by weight of said polyolefin (A), of a modified polyolefin prepared by polymerizing (b) 1 to 500 parts by weight of a vinyl monomer in the presence of (a) 100 parts by weight of a nonpolar polyolefin, wherein the refraction index of said polyolefin (A) is substantially identical to that of said modified polyolefin (B), and having an excellent processability and being capable of providing molded articles having excellent properties such as transparency, impact resistance, rigidity and surface properties.

Abstract: The present invention is related to a laminated foam sheet for vehicle interior comprisinga foamed core layer,a film layer(P) laminated on one side of said foamed core layer, anda film layer(S) laminated on the other side of said foamed core layer;said foamed core layer comprising a modified polyphenylene ether resin(I), said film layer(P) comprising a modified polyphenylene ether resin(II) and said film layer(S) comprising a polystyrene resin(III).

Abstract: The present invention provides a laminated foam sheet for car interior comprising a foamed core layer of modified polyphenylene ether resin(I) and film layer(s) of thermoplastic resin laminated thereon, characterized in that the glass transition temperature of the thermoplastic resin of said film layer is lower than that of the modified polyphenylene ether resin(I) of said foamed core layer and makes it possible to obtain molded bodies in a simple manner using the laminated foam sheet. Since the molded bodies obtained by the present invention have the superior characters of heat resistance, rigidity, light weight and good heat insulation, they can be appropriately used as the car interiors such as the material for the ceiling and door trims.

Abstract: The present invention provides a laminated foam sheet for car interior comprising a foamed core layer of modified polyphenylene ether resin(I) and film layer(s) of thermoplastic resin laminated thereon, characterized in that the glass transition temperature of the thermoplastic resin of said film layer is lower than that of the modified polyphenylene ether resin(I) of said foamed core layer and makes it possible to obtain molded bodies in a simple manner using the laminated foam sheet. Since the molded bodies obtained by the present invention have the superior characters of heat resistance, rigidity, light weight and good heat insulation, they can be appropriately used as the car interiors such as the materials for the ceiling and door trims.