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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异规聚丙烯
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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质(A)和分散在基质中的乙丙橡胶相(B),其中多相聚丙烯树脂具有根据DIN EN ISO 1628-1和-3测定的在25°C(XCU)下不溶于对二甲苯的特性粘度为1.5 dl / g或更低,丙烯单体单元的量至少为95 mol %,和在25°C(XCS)下可溶于对二甲苯的馏分,特性粘度为1.5至3.0 dl / g(根据DIN EN ISO 1628-1和-3确定),丙烯单体单元的数量为50至75摩尔%根据ISO 1133测定的MFR(2.16kg,230℃)大于100g / 10min,包含这种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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