Patent ID: 6495621
Filing Date: 2002-12-17
Classification: C08L

Abstract:
A molding material for OA machine parts comprising a resin composition comprising:(1) 60 to 98 parts by weight of a polyphenylene ether-based resin comprising 10 to 100% by weight of a polyphenylene ether resin and 0 to 90% by weight of a styrene-based resin; (2) 2 to 40 parts by weight of a thermoplastic elastomer which is a conjugated diene rubber having not less than 50% by weight of addition across a 1,2-vinyl structure, addition across a 3,4-vinyl structure or mixture thereof, a styrene-conjugated diene block copolymer having not less than 50% by weight of addition across a 1,2-vinyl structure, addition across a 3,4-vinyl structure or mixture thereof, or a hydrogenated product thereof; (3) 1 to 50 parts by weight of a flame retardant, the total amount of (1) polyphenylene ether-based and (2) thermoplastic elastomer being 100 parts by weight; and (4) glass fiber in an amount of 10 to 60% by weight based on the weight of molding material, said resin composition having bending modulus of not less than 1500 MPa as measured at 23Â° C. according to ASTM D790, a damping ratio of not less than 1.0% at 23Â° C., and a thermal deformation temperature of not less than 100Â° C. as measured according to ASTM D648 under 18.6 kg/cm2 load, and the product of the bending modulus and the damping ratio being not less than 10,000 MPaÂ·%.