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:
Oct. 21, 2025
Filed:
Oct. 28, 2020
China Petroleum & Chemical Corporation, Beijing, CN;
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation, Beijing, CN;
Wenbo Song, Beijing, CN;
Shuliang Han, Beijing, CN;
Zhao Jin, Beijing, CN;
Lusheng Wang, Beijing, CN;
Haokun Li, Beijing, CN;
Yuanyuan Fang, Beijing, CN;
Abstract
Disclosed is a catalyst for olefin polymerization, comprising a main catalyst and a cocatalyst; the main catalyst is a bisphenol metal complex represented by formula I, and the cocatalyst comprises an organoaluminum compound; in formula I, R, R', R, R′ are the same or different, and are each independently selected from hydrogen and a substituted or unsubstituted C-Chydrocarbyl; R-R, R′-R′ are the same or different, and are each independently selected from hydrogen and a substituted or unsubstituted C-Chydrocarbyl; Rand Rare the same or different, and are each independently selected from hydrogen or a substituted or unsubstituted C-Chydrocarbyl; M and M′ are the same or different, and are selected from Group IV metals; and X is halogen;
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile