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:
Jul. 22, 2025
Filed:
Oct. 30, 2020
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Chemical Industry Co., Ltd., Shanghai, CN;
Zhaolin Yin, Guangdong, CN;
Yucai Cao, Shanghai, CN;
Dongwen Zhong, Guangdong, CN;
Shengbiao Liang, Guangdong, CN;
Yongqing Li, Shanghai, CN;
Zhenyu Liu, Guangdong, CN;
Lujian Li, Guangdong, CN;
Xiaofeng Ye, Shanghai, CN;
Weizhe Wang, Guangdong, CN;
Chen Ni, Shanghai, CN;
Jie Li, Guangdong, CN;
Fan Wang, Shanghai, CN;
Guoyu Liu, Guangdong, CN;
Shibing Chen, Guangdong, CN;
Xionghua Chen, Guangdong, CN;
Wenjun Jiang, Guangdong, CN;
Zhenxu Lu, Guangdong, CN;
Si Tan, Guangdong, CN;
Ruizhen Lu, Guangdong, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD., Shanghai, CN;
Abstract
A method for preparing a high viscosity index poly-α-olefin subjects α-olefin to a polymerization reaction in the presence of a metallocene catalyst to obtain a poly-α-olefin. The polymerization reaction is carried out in the absence of a solvent, and the metallocene catalyst is formed of, or is formed by interaction between, a metallocene compound and an activator.