Catalyst component for olefin polymerization and preparation method thereof

US9353197B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Xianzhi Xia · Beijing, CN
• Jin Zhao · Hangzhou City, CN
• Yuexiang Liu · Beijing, CN
• Jigui Zhang · Beijing, CN
• Weili Li · Beijing, CN
• Yang Tan · Beijing, CN
• Suzhen Qiao · Beijing, CN
• Renqi Peng · Beijing, CN
• Ping Gao · Hong Kong, CN
• Maoping Yin · Beijing, CN
• Tianyi Zhang · Huangyang, CN

Key dates

• Filing date: Apr 19, 2010
• Grant date: May 31, 2016
• Expiry date: Dec 2, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A catalyst component for olefin polymerization is disclosed, which comprises at least one diol ester type electron donor compound (a) and at least one diether type electron donor compound (b) among others, wherein the molar ratio of a to b is 0.55-50. A preparation method of the catalyst component, a catalyst comprising the catalyst component, and an olefin polymerization method using the catalyst which can especially be used for preparation of polypropylenes of low ash contents are also disclosed.