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:
Feb. 23, 2021
Filed:
Oct. 12, 2018
Petrochina Company Limited, Beijing, CN;
Jianjun Yi, Beijing, CN;
Mingge Zhang, Beijing, CN;
Hongming Li, Beijing, CN;
Tianxu Sun, Beijing, CN;
Yuan Yuan, Beijing, CN;
Yisen Wang, Beijing, CN;
Qigu Huang, Beijing, CN;
Runcong Zhang, Beijing, CN;
Jing Wang, Beijing, CN;
Yanpei Nie, Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
The present invention provides an olefin coordination polymerization catalyst and use thereof. The composition of the raw materials of the olefin coordination polymerization catalyst comprises: a main catalyst and a cocatalyst, wherein a molar ratio of the transition metal halide in the main catalyst to the cocatalyst is 1:10-500; and the composition of the raw materials of the main catalyst comprises a magnesium compound, a transition metal halide, an alcohol having 2 to 15 carbon atoms, and a star-shaped organosiloxane compound in a molar ratio of 1:1-40:0.01-10:0.001-10; and the cocatalyst comprises an organoaluminum compound. The above olefin coordination polymerization catalyst is used as a catalyst for ethylene polymerization, propylene polymerization, and copolymerization of ethylene or propylene with an α-olefin. The olefin polymerization catalyst of the present invention has good catalytic activity.