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发明公开
CN109867900A 用于未涂覆的防震垫的聚丙烯树脂组合物 有权

用于未涂覆的防震垫的聚丙烯树脂组合物
摘要：
公开了一种用于未涂覆的防震垫的聚丙烯树脂组合物。所述组合物可以包含约50至80wt％的量的聚丙烯树脂，其多分散指数(PI)为约4.5至6.5，重均分子量为约200,000至350,000g/mol，并且通过C13-NMR方法测量的等规聚丙烯级分为约96％或更大；约1至30wt％的量的橡胶，其熔融指数为约1至6g/10min(230℃,2.16Kg)；约11至30wt％的量的无机填料，其由约10至20wt％的量的滑石与约1至10wt％的量的晶须的混合物组成；和约1至5wt％的量的抗划伤剂，所有wt％均基于聚丙烯树脂组合物的总重量。
摘要（英）：

Disclosed is a polypropylene resin composition for an uncoated crash pad. The composition may include an amount of about 50 to 80 wt % of a polypropylene resin having a Polydispersity Index (PI) of about 4.5 to 6.5, a weight average molecular weight of about 200,000 to 350,000 g/mol, and an isotactic peptide fraction of about 96% or greater as measured by a C13-NMR method, an amount of about 1 to30 wt % of rubber having a melt index of about 1 to 6 g/10 min (230DC., 2.16 Kg), an amount of about 11 to 30 wt % of an inorganic filler composed of a mixture of an amount of about 10 to 20 wt % of talc and an amount of about 1 to 10 wt % of whisker, and an amount of about 1 to 5 wt % of an anti-scratch agent, all the wt % are based on the total weight of the polypropylene resin composition.

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