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Heterophasic polypropylene with high flowability and excellent low temperature impact properties
Heterophasic polypropylene with high flowability and excellent low temperature impact properties
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机译:具有高流动性和优异的低温冲击性能的多相聚丙烯
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摘要
The present invention relates to a heterophasic polypropylene resin comprising a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25° C. (XCU) with an intrinsic viscosity of 1.5 dl/g or less, determined according to DIN EN ISO 1628-1 and -3 and an amount of propylene monomer units of at least 95 mol %, and a fraction soluble in p-xylene at 25° C. (XCS) with an intrinsic viscosity of 1.5 to 3.0 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of propylene monomer units of 50 to 75 mol %, and a MFR (2.16 kg, 230° C.) of more than 100 g/10 min, determined according to ISO 1133, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof.
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机译:本发明涉及一种多相聚丙烯树脂,其包含丙烯均聚物或共聚物基体(A)和分散在该基体内的乙烯-丙烯橡胶相(B),其中该多相聚丙烯树脂具有在25℃下不溶于对二甲苯的馏分。根据DIN EN ISO 1628-1和-3确定的特性粘度为1.5 dl / g或更低的X.C.(XCU),丙烯单体单元的含量至少为95 mol%,可溶于p根据DIN EN ISO 1628-1和-3测定的25°C(XCS)的特性粘度为1.5至3.0 dl / g,丙烯单体单元的量为50至75 mol%的根据ISO 1133测定的MFR(2.16kg,230℃)大于100g / 10min,包含该树脂的多相聚丙烯组合物,该树脂的制备方法,以及由其制成的制品。
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