Finnegan, Henderson, Farabow, Garrett & Dunner LLP
Catalyst component for olefin polymerization and catalyst comprising the same
A catalyst component for olefin polymerization is disclosed, which comprises a reaction product of the following components: (1) a spheric carrier; (2) a titanium compound; and optionally, (3) an electron donor, wherein the spheric carrier comprises a reaction product of at least the following components: (a) a magnesium halide represented by a general formula of MgX2-nRn, wherein X is independently chloride or bromide, R is a C1-C14 alkyl, a C6-C14 aryl, a C1-C14 alkoxy, or a C6-C14 aryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound represented by a general formula (I), wherein R2 and R3 are independently hydrogen, a C1-C5 linear or branched alkyl, or a C1-C5 linear or branched haloalkyl. When the catalyst of the invention is used in olefin polymerization, in particular in propylene polymerization, at least one of the following desired effects can be achieved: high polymerization activity of catalyst, high stereospecificity of catalyst, good hydrogen response of catalyst, high stereoregularity of polymer having high melt index, and low content of polymer fines.
Beijing Research Inst. of Chemical Industry, China Petroleum & Chemical Corporation China Petroleum & Chemical Corporation
C C C
C07F C08F C08F
inventional inventional additional
Suzhen Weili Ping Yang Zhihui Jigui Linna Jin Ruilin Xianzhi Renqi Yuexiang Xinsheng
Qiao Li Gao Tan Zhang Zhang Yang Zhao Duan Xia Peng Liu Wang