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:
Apr. 01, 2008
Filed:
Apr. 28, 2005
Mingzhi Gao, Beijing, CN;
Haitao Liu, Beijing, CN;
Tianyi LI, Beijing, CN;
Xianzhong LI, Beijing, CN;
Changxiu LI, Beijing, CN;
Jiyu LI, Beijing, CN;
Lingyan Xing, Beijing, CN;
Juxiu Yang, Beijing, CN;
Jing MA, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Chunmin Ding, Beijing, CN;
Mingzhi Gao, Beijing, CN;
Haitao Liu, Beijing, CN;
Tianyi Li, Beijing, CN;
Xianzhong Li, Beijing, CN;
Changxiu Li, Beijing, CN;
Jiyu Li, Beijing, CN;
Lingyan Xing, Beijing, CN;
Juxiu Yang, Beijing, CN;
Jing Ma, Beijing, CN;
Xiaodong Wang, Beijing, CN;
Chunmin Ding, Beijing, CN;
Abstract
The present invention provides a catalyst component for polymerization of olefin CH═CHR, in which R is hydrogen or C-Calkyl or aryl, comprising magnesium, titanium, a halogen and an electron donor compound (a) which is at least one selected from the group consisting of dibasic ester compounds of the formula (I), and said catalyst component optionally further comprising an electron donor compound (b) selected from the group consisting of aliphatic dicarboxylic esters and aromatic dicarboxylic esters, and/or an electron donor compound (c) selected from the group consisting of 1,3-diether compounds of formula (IV):