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:
Aug. 02, 2022
Filed:
Jul. 19, 2018
China Petroleum & Chemical Corporation, Beijing, CN;
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation;
Ting Huang, Beijing, CN;
Zifang Guo, Beijing, CN;
Zhufang Sun, Beijing, CN;
Junling Zhou, Beijing, CN;
Lunjia Xie, Beijing, CN;
Hongxu Yang, Beijing, CN;
Bingyi Li, Beijing, CN;
Qingqiang Gou, Beijing, CN;
Tingjie Huang, Beijing, CN;
Peng Kou, Beijing, CN;
Xiaofan Zhang, Beijing, CN;
Meiyan Fu, Beijing, CN;
Jie Lin, Beijing, CN;
Yonghua Ma, Beijing, CN;
Abstract
The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M, M, M, M, M, M, M', M′, M′, M′, M′ and M′ are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, —Rand —OR, wherein Rand Rare each independently a C-Chydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C-Calkoxy and heteroatoms; and wherein, when among M-Mand M′-M′, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of Rand —OR, the two adjacent groups may optionally be linked to form a ring, with a proviso that M, M, M, M, M, M, M′, M′, M′, M′, M′ and M′ are not simultaneously hydrogen.