| 摘要 |
PURPOSE:The titled composition excellent in melt flow, heat resistance and impact resistance, comprising a polyphenylene ether resin, a specified rubber-grafted copolymer resin and a block copolymer resin. CONSTITUTION:5-85pts.wt. (A) polyphenylene ether resin such as poly (2,6-dimethyl-1,4-phenylene) ether of a MW of 20,000-150,000, obtained by oxidatively coupling 2,6-dimethylphenol in the presence of CuCl is melt-blended with 10- 90pts.wt. (B) rubber-grafted copolymer resin obtained by polymerizing 5-30wt% rubbery polymer of a glass transition point <=0 deg.C with 40-90wt% aromatic vinyl monomer and 5-30wt.% alpha,beta-unsaturated dicarboxylic acid anhydride monomer and 5-30pts.wt. (C) block copolymer resin comprising 55-90wt% aromatic vinyl monomer and 10-45wt% aliphatic diene monomer. |
