A thermoplastic resin composition having good moldability and yielding molded articles having well-balanced physical properties comprises:
(a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether,
(b) (i) a modified propylene polymer obtainable by grafting a propylene polymer with a styrene-based monomer or a mixture of a styrene-based monomer and a monomer copolymerizable with the styrene-based monomer or (ii) a composition containing said modified propylene polymer and a propylene polymer, and
(c) a rubbery substance.
The number mean particle size of the components (a) and (c) in the dispersion phase is from 0.01 to 20 µm, the proportion of the component (a) to the sum of the components (a) and (b) being 1 to 80% by weight, that of the component (b) to the sum of the components (a) and (b) being 99 to 20% by weight, and the proportion of the component (c) to the sum of the components (a) and (b) being 1 to 50 parts by weight per 100 parts by weight of (a) plus (b).
一种热塑性
树脂组合物具有良好的模塑性,可制成具有均衡物理性能的模塑制品,该组合物包括
(a) 聚苯醚
树脂或含有聚苯醚的
树脂组合物、
(b) (i) 通过将
丙烯聚合物与
苯乙烯基单体或
苯乙烯基单体与可与
苯乙烯基单体共聚的单体的混合物接枝而获得的改性
丙烯聚合物,或 (ii) 含有上述改性
丙烯聚合物和
丙烯聚合物的组合物,以及
(c) 橡胶物质。
分散相中组分(a)和(c)的平均粒径为 0.01 至 20 微米,组分(a)占组分(a)和(b)总和的比例为 1 至 80%(按重量计),组分(b)占组分(a)和(b)总和的比例为 99 至 20%(按重量计),组分(c)占组分(a)和(b)总和的比例为每 100 重量份的(a)和(b)中占 1 至 50 重量份。