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:
Nov. 21, 2017
Filed:
Sep. 28, 2014
China Petroleum & Chemical Corporation, Beijing, CN;
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation, Beijing, CN;
Changxiu Li, Beijing, CN;
Mingzhi Gao, Beijing, CN;
Haitao Liu, Beijing, CN;
Jing Ma, Beijing, CN;
Jianhua Chen, Beijing, CN;
Xianzhong Li, Beijing, CN;
Xiaoxia Cai, Beijing, CN;
Jixing Ma, Beijing, CN;
Jun Wang, Beijing, CN;
Jianjun Hu, Beijing, CN;
Abstract
The present disclosure discloses a catalyst composition for olefin polymerization, comprising the following components: a): a solid catalyst component containing magnesium, titanium, halogens, and at least one internal electron donor having a lone pair of electrons; b): an aluminum alkyl compound; and c): an external electron donor containing a first external electron donor C1, which is a malonate compound. In the present disclosure, a catalyst composition having an external electron donor that contains a malonate compound is used in olefin polymerization, in particular propene polymerization, and can significantly improve catalytic activity and hydrogen response of the catalyst and expand molecular weight distribution of polymers, which facilitates development of different polymers.