Catalyst component for olefin polymerization reaction and catalyst comprising same

US9156927B2 · kind B2 · utility

Assignees

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

Inventors

• Mingzhi Gao · Beijing, CN
• Changxiu Li · Beijing, CN
• Haitao Liu · Boise, US
• Xiaofan Zhang · Beijing, CN
• Jianhua Chen · Plymouth, US
• Jing Ma · Beijing, CN
• Xiaoxia Cai · Beijing, CN
• Xianzhong Li · Beijing, CN
• Jixing Ma · Beijing, CN

Key dates

• Filing date: Apr 22, 2011
• Grant date: Oct 13, 2015
• Expiry date: May 2, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A catalyst component for olefin polymerization comprising magnesium, titanium, halogen and electron donor, wherein the electron donor is selected from at least one of the diol diester compounds, when the diol diester comprised contains a certain amount of isomer with Fischer projection formula as shown in Formula (II), the activity and stereospecificity of the catalyst are greatly improved, especially in the production of polymers with high melt index, the isotactic index of the obtained polymers is improved substantially.