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:
Jun. 09, 2026
Filed:
May. 06, 2021
Petrochina Company Limited, Beijing, CN;
Liang Cui, Beijing, CN;
Jianjun Yi, Beijing, CN;
Junyu Lei, Beijing, CN;
Haijun Hao, Beijing, CN;
Kefeng Wang, Beijing, CN;
Shisheng Zhao, Beijing, CN;
Junpeng Zhuang, Beijing, CN;
Shenghui Zhang, Beijing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
Abstract
The present invention relates to a catalyst for propylene polymerization, a catalyst system for propylene polymerization and preparation and use thereof. The catalyst for propylene polymerization comprises: an activated magnesium halide, a titanium compound supported on the activated magnesium halide containing at least one Ti-halogen bond, and an internal electron donor compound selected from one or more of compounds having a structure of below Formula (1), wherein Rand Rare each independently selected from a C-Cstraight or branched alkyl, a C-Ccycloalkyl or aryl, and R' is H, a C-Cstraight or branched alkyl, or phenyl; R, R, R, and Rare each independently selected from H, halogen, a C-Cstraight or branched alkyl, a C-Ccycloalkyl, a C-Caryl, or arylalkyl. The present invention can provide a catalyst showing high polymerization reaction activity and excellent stereospecificity, by applying a novel type of internal electron donor.