Abstract: The present invention is improved in an enhanced impact resistance of a molded article of a PAS resin and continuous molding (mold release improvement) in mass production and adhesion to coating. The present invention provides a polyarylene sulfide resin composition comprising (A) 100 parts by weight of a polyarylene sulfide resin, (B) 1-20 parts by weight of a graft copolymer formed by the branching or crosslinking chemical bond of an olefin-based copolymer (b-1) and at least one polymer or copolymer (b-2), the olefin copolymer (b-1) composed mainly of an ?-olefin and an ?, ?-unsaturated carboxylic acid ester without a glycidyl group, the polymer or copolymer (b-2) constituted of a specific repeating unit, and (C) 1-20 parts by weight of an olefin copolymer composed mainly of an ?-olefin and a glycidyl ester of an ?,?-unsaturated carboxylic acid.

Abstract: The present invention is improved in an enhanced impact resistance of a molded article of a PAS resin and continuous molding (mold release improvement) in mass production and adhesion to coating. The present invention provides a polyarylene sulfide resin composition comprising (A) 100 parts by weight of a polyarylene sulfide resin, (B) 1-20 parts by weight of a graft copolymer formed by the branching or crosslinking chemical bond of an olefin-based copolymer (b-1) and at least one polymer or copolymer (b-2), the olefin copolymer (b-1) composed mainly of an ?-olefin and an ?, ?-unsaturated carboxylic acid ester without a glycidyl group, the polymer or copolymer (b-2) constituted of a specific repeating unit, and (C) 1-20 parts by weight of an olefin copolymer composed mainly of an a-olefin and a glycidyl ester of an ?,?-unsaturated carboxylic acid.

Abstract: A polyarylene sulfide resin composition having excellent metal corrosion resistance and excellent mechanical properties is composed of 100 parts by weight of a polyarylene sulfide resin; from 0.1 to 10 parts by weight of a specific metal compound the surface of which has been pretreated with a first alkoxysilane compound; from 0 to 10 parts by weight of a second alkoxysilane compound; and from 5 to 500 parts by weight of an organic filler.

Abstract: A polyarylene sulfide resin composition comprises(A) 100 parts by weight of a polyarylene sulfide resin and(B) 5 to 400 parts by weight of a hollow microspherical filler which comprises 20 to 80% by weight of SiO.sub.2 and 20 to 80% by weight of Al.sub.21 O.sub.3 as major components and has a specific gravity of 1.0 to 2.5 and an average particle diameter of 1 to 100 .mu.