Patent ID: 7619020
Filing Date: 2009-11-17
Classification: C08K,C08L

Abstract:
1. A polyacetal resin composition comprising: 100 parts by weight of (A1) a polyacetal resin having a substantially straight chain molecular structure; 0.1-20 parts by weight of (A2) a polyacetal resin having a branched or cross-linked molecular structure, wherein the (A2) polyacetal resin is a cross-linked polyacetal copolymer prepared by copolymerizing 99.89 to 88.0% by weight of (a) trioxane, 0.1 to 10.0% by weight of (b) a compound selected from a cyclic ether compound having no substituent and a cyclic formal compound having no substituent, and 0.01 to 2.0% by weight of (c) a polyfunctional glycidyl ether compound, and having a melt index in a range from 0.1 to 10 g/min (determined at 190° C. and 2.16 kg of load); 3-200 parts by weight of (B) a glass-base inorganic filler; and 0.001 to 3 parts by weight of (C) a boric acid compound.