| 摘要 |
PURPOSE:To obtain the subject composition comprising polyacetal resin homopolymer, a polyacetal resin copolymer, and a silicone oil, excellent in abrasion resistance, durability and creak reduction, and useful for mechanical parts such as gears. electric parts, etc. CONSTITUTION:This resin composition comprises (A) polyacetal resin homopolymer having a melt index of 30-40g/10min, etc., (B) a polyacetal resin copolymer having a melt index of 7-15g/10min etc., and (C) a silicone oil such as dimethylpolysiloxane, dimethylsiloxane-methylphenylsiloxane copolymer having an average polymerization degree of 3000-5000, the sum of the components A, B and C being 100 pts.wt., and 2.0<X<97.9, 0<Y<83.0, 0.1<=Z<=1.5, preferably 42.5<=X<97.9, 2.0<Y<50, when the weights of the components A, B and C are X, Y and Z, respectively. |
