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US07381779B2 Self limiting catalyst composition with dicarboxylic acid ester internal donor and propylene polymerization process 失效
二羧酸酯内给体和丙烯聚合过程的自限催化剂组成

Self limiting catalyst composition with dicarboxylic acid ester internal donor and propylene polymerization process
摘要：
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 1 to 99 percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 99 to 1 percent of one or more alkoxysilane compounds.
摘要（中）：

一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔前催化剂组合物，其包含一种或多种过渡金属化合物和一种或多种芳族二羧酸内电子给体的酯; 一种或多种含铝助催化剂; 和两种或更多种不同选择性控制剂的混合物，所述SCA混合物包含1至99％的一种或多种一种或多种芳族单羧酸或其取代衍生物的酯，以及99至1％的一种或多种烷氧基硅烷化合物 。

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