| 摘要 |
PURPOSE:The titled composition having improved molding properties with preventing mechanical characteristics, providing a flexible molded article free from burr in a short injection cycle, obtained by blending a polyester block copolymer with a specific rubber-reinforced thermoplastic resin. CONSTITUTION:(A) A polyester block copolymer [content is a wt%(%)] is blended with (B) a rubber-reinforced thermoplastic resin (content is bwt%) containing a rubber component (content in the component B is cwt%) in such a way to satisfy the relationship shown by the formula 90>=a>=17.5, a+b=100 and a+20>=c>=55-a. A polyester block copolymer containing 20-80wt% poly(tetramethylene oxide) glycol is preferable as the component A. The component B is obtained by using polybutadiene, etc. as the rubber component, subjecting it, a vinyl cyanide monomer and an aromatic vinyl monomer and/or acrylic ester to graft polymerization and used.
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