The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2016
Filed:
Oct. 18, 2010
Weili LI, Beijing, CN;
Xianzhi Xia, Beijing, CN;
Yuexiang Liu, Beijing, CN;
Jigui Zhang, Beijing, CN;
Suzhen Qiao, Beijing, CN;
Jin Zhao, Beijing, CN;
Ping Gao, Beijing, CN;
Xinsheng Wang, Beijing, CN;
Yang Tan, Beijing, CN;
Zhihui Zhang, Beijing, CN;
Linna Yang, Beijing, CN;
Ruilin Duan, Beijing, CN;
Renqi Peng, Beijing, CN;
Weili Li, Beijing, CN;
Xianzhi Xia, Beijing, CN;
Yuexiang Liu, Beijing, CN;
Jigui Zhang, Beijing, CN;
Suzhen Qiao, Beijing, CN;
Jin Zhao, Beijing, CN;
Ping Gao, Beijing, CN;
Xinsheng Wang, Beijing, CN;
Yang Tan, Beijing, CN;
Zhihui Zhang, Beijing, CN;
Linna Yang, Beijing, CN;
Ruilin Duan, Beijing, CN;
Renqi Peng, Beijing, CN;
Abstract
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 MgXR, wherein X is independently chloride or bromide, R is a C-Calkyl, a C-Caryl, a C-Calkoxy, or a C-Caryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound represented by a general formula (I), wherein Rand Rare independently hydrogen, a C-Clinear or branched alkyl, or a C-Clinear 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.