Polyacetal resin composition
AssigneeToray Industries, Inc.
InventorsMasaki Kunitomi, Hiromitsu Ishii, Yoshiyuki Yamamoto
Life of this patent
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Abstract
A polyacetal resin composition having a volume resistivity lower than 10.sup.14 [.OMEGA..multidot.cm], which comprises (A) 100 parts by weight of a polyacetal resin and (B) 1 to 100 parts by weight of a polyether ester block copolymer which is derived from (a) a dicarboxylic acid component composed mainly of terephthalic acid, (b) a glycol component composed mainly of 1,4-butanediol and (c) a poly(ethylene oxide)glycol having a number average molecular weight of 500 to 20,000 and has a poly(ethylene oxide) dicarboxylate unit content of 20 to 95% by weight, has excellent antistatic characteristics and mechanical characteristics, and especially a high impact resistance.
Claims9
A polyacetal resin composition having a volume resistivity not larger than 10.sup.14 (.OMEGA..multidot.cm), which comprises (A) 100 parts by weight of a polyacetal resin, (B) 1 to 100 parts by weight of a polyether-ester block copolymer which is derived from (a) a dicarboxylic acid component composed mainly of terephthalic acid, (b) a glycol component composed mainly of 1,4-butanediol and (c) a poly(ethylene oxide)glycol having a number average molecular weight of 500 to 20,000 and has a poly(ethylene oxide) dicarboxylate unit content of 20 to 95% by weight, and (C) 0.05 to 20 parts by weight of a compound selected from the group consisting of sodium alkylbenzenesulfonates and metal salts of an organic carboxylic acid.
Dependencies are inferred from the claim text.