THERMOPLASTIC POLYESTER COMPOSITION

摘要

PURPOSE:To provide a resin compsn. having excellent low-temperature impact resistance and improved melt flow characteristics, by blending an unsaturated carboxylic acid/alpha-olefin copolymer and an unsaturated epoxy compd./alpha-olefin copolymer with a thermoplastic polyester. CONSTITUTION:A compsn. consists of 50-98pts.wt. thermoplastic polyester (A), 1-49pts.wt. unsaturated carboxylic acid or anhydride/alpha-olefin copolymer (B) having an unsaturated carboxylic acid or anhydride (D) content of 0.05-30wt% and 1-49pts.wt. unsaturated epoxy compd./alpha-olefin copolymer (C) having an unsaturated epoxy compd. (E) content of 0.05-30wt%. At least one of said copolymers B and C is a copolymer obtd. by grafting an unsaturated carboxylic acid or anhydride (D) or an unsaturated epoxy compd. (E) onto an ethylene/alpha-olefin copolymer (F) having an ethylene content of 70-95mol% and a crystallinity by X-rays of 30% or below.