Patent ID: 7098262

Claim:
A polyacetal composition having excellent wear resistance and abruption-preventing effect, comprising: (A) 100 parts by weight of a polyoxymethylene homopolymer having a monomeric unit represented by the following Formula 1 or a polyoxymethylene random copolymer having a monomeric unit of the Formula 1 and a monomeric unit represented by the following Formula 2; (B) 0.01–1.0 parts by weight of an antioxidant; (C) 0.01–1.0 parts by weight of a thermal stabilizer; (D) 0.5–5.0 parts by weight of a polyethylene vinylacetate copolymer represented by the following Formula 3; and (E) 0.1–2.0 parts by weight of hydroxyl pentaerythritol fatty acid ester represented by the following Formula 4: wherein R 1 and R 2 , which are the same or different, each represent hydrogen, an alkyl group or an aryl group; n represents an integer of 2–6; x represents a content of polyethylene in the range of 97–59 parts by weight and y represents a content of vinylacetate in the range of 3–41 parts by weight; and R is —CH 2 —O—CO—C A H B in which A is an integer of 8–19 and B is an integer of 17–39.