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公开(公告)号:US06320009B1
公开(公告)日:2001-11-20
申请号:US09230482
申请日:1999-01-26
IPC分类号: C08F1006
CPC分类号: C08F10/00 , C08F110/06 , C08L23/10 , C08L23/12 , C08L23/142 , C08L2205/02 , C08L2205/025 , C08L2314/02 , C08F4/655 , C08F4/6492 , C08F4/6545 , C08F2/001 , C08L2666/06 , C08L2666/04 , C08F2500/12 , C08F2500/01 , C08F2500/17 , C08F2500/15 , C08F2500/04 , C08F2500/08
摘要: The present invention provides a polypropylene-based resin composition which is light weighing, has a very high values of stiffness and heat resistance, exhibits superior scratchproof property and is superior in the processibility with better flowability upon molding thereof, especially that can favorably be used for injection molding. The polypropylene-based resin composition according to the present invention is constituted predominantly of polypropylene and has the following characteristic features A and B: A: a melt flow rate (MFR), determined at 230° C. under a load of 2.16 kg, in the range of 5-50 g/10 min. and B: a content of a high molecular weight polypropylene having an intrinsic viscosity [&eegr;] of 9-13 dl/g in the range of 15-30% by weight.
摘要翻译: 本发明提供一种重量轻,具有非常高的刚度和耐热性值的聚丙烯类树脂组合物,具有优良的耐擦伤性,并且在成型时具有优异的加工性和更好的流动性,特别是可有利地用于 注塑成型。 本发明的聚丙烯类树脂组合物主要由聚丙烯构成,具有以下特征A,B:A:在230℃,2.16kg负荷下测定的熔体流动速率(MFR) 范围为5-50 g / 10 min。 和B:特性粘度η为9-13dl / g的高分子量聚丙烯的含量为15-30重量%。