Catalyst component for olefin polymerization, catalyst, and use thereof

US11325994B2 · kind B2 · utility

Assignees

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

Inventors

• Jun Wang · Beijing, CN
• Mingzhi Gao · Beijing, CN
• Haitao Liu · Boise, US
• Jing Ma · Beijing, CN
• Jixing Ma · Beijing, CN
• Xiaoxia Cai · Beijing, CN
• Jianhua Chen · Plymouth, US
• Jianjun Hu · Lo Wu, CN
• Changxiu Li · Beijing, CN
• Zhihui Zhang · Katy, US
• Ruilin Duan · Beijing, CN
• Changyou Ma · Shanghai, CN

Key dates

• Filing date: Sep 22, 2017
• Grant date: May 10, 2022
• Expiry date: Oct 26, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/6465
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high activity and a long term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution.