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:
Sep. 21, 2021
Filed:
Jun. 24, 2019
Beijing Lihe Technology Ltd, Beijing, CN;
Zhiwu Wang, Beijing, CN;
Shuhang Li, Beijing, CN;
Huashu Li, Beijing, CN;
Junwei Zhang, Beijing, CN;
Le Hu, Beijing, CN;
Jinsong Dai, Beijing, CN;
Qingli Ma, Beijing, CN;
Yong Gao, Beijing, CN;
Wenjie Jiao, Beijing, CN;
Xinghuo Wang, Beijing, CN;
Hao Chen, Beijing, CN;
BEIJING LIHE TECHNOLOGY LTD, Beijing, CN;
Abstract
Provided is an alkoxy magnesium supported olefin polymerization catalyst component, comprising the reaction products of the following components: at least one alkoxy magnesium compound of Mg(OR1')N(OR2′)2-N, at least one titanium compound of general formula Ti(OR)nX4-n, at least one ortho-phenylene diester electron donor compound a, and at least one diether electron donor compound b, wherein the molar ratio of a to b is 0.05 to 20. The catalyst component has an ultrahigh polymerization activity when used for olefin polymerization, and does not require the use of an external electron donor, but can also obtain a polymer with a high isotacticity, and the resulting polymer has a relatively wide molecular weight distribution and a relatively low ash content.