Patent ID: 6747094
Filing Date: 2004-06-08
Classification: C08L

Abstract:
A high-impact thermoplastic resin composition comprising:(A) 5 to 95 parts by weight of a thermoplastic elastomer composition comprising a partially or completely crosslinked rubbery polymer and a polyolefinic resin and/or a polystyrene-based resin and optionally a second polyolefinic resin; wherein organic peroxides are used as a crosslinking agent, wherein said rubbery polymer is selected from the group consisting of 1) a rubbery polymer being an ethylene-&agr;-olefin copolymer or an ethylene-&agr;-olefin copolymer with a conjugated diene and/or a non-conjugated diene used as a copolymer component wherein the amount of said conjugated diene and/or non-conjugated diene is not more than 50% by weight based on said copolymer. 2) a rubbery polymer being a hydrogenated diene polymer obtained by hydrogenating at least 50% of the double bond of the diene; and 3) a rubbery polymer being a hydrogenated aromatic vinyl/conjugated diene block or random copolymer obtained by hydrogenating at least 90% of the double bond based on said conjugated diene moiety, (B) 95 to 5 parts by weight of at least one thermoplastic resin selected from the group consisting of polystyrene-based resins, polyamide-based resins, polyurethane-based resins, polycarbonate-based resins, polyphenylene ether-based resins, polyester-based resins, acrylic resins, polyacetal-based resins and polyphenylene sulfide-based resins; the total of the components (A) and (B) being 100 parts by weight, wherein the amount of the rubbery polymer in the composition is 1 to 40% by weight, wherein the wt % of the rubbery polymer is based on the total weight of components (A) and (B) and, if present, a compatibilizing agent (C); and wherein the high-impact thermoplastic resin composition has a Shore D hardness of at least 50.