Catalyst component for ethylene polymerization, preparation thereof, and a catalyst comprising the catalyst component

US8268945B2 · kind B2 · utility

Assignees

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

Inventors

• Taoyi ZHANG · Beijing, CN
• Junling Zhou · Beijing, CN
• Hongtao Wang · Beijing, CN
• Zifang Guo · Beijing, CN
• Qingqiang Gou · Beijing, CN
• Hongxu Yang · Beijing, CN
• Ruixia Li · Beijing, CN
• Shiyuan XU · Beijing, CN

Key dates

• Filing date: Aug 20, 2010
• Grant date: Sep 18, 2012
• Expiry date: Sep 13, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A catalyst component for ethylene polymerization, comprising an organic silicon compound of the formula (I), below wherein R1 is chosen from C3-C20 aliphatic hydrocarbyl groups, and is substituted with at least one substituent chosen from halogens, C1-C6 acyloxy groups, epoxy, amino, C1-C6 alkylamino groups, di(C1-C6 alkyl)amino groups, C1-C6 alkoxy groups, and oxo group; R2, R3 and R4, which may be the same or different, are each chosen from C1-C10 aliphatic hydrocarbyl, C3-C10 alicyclic hydrocarbyl, C6-C10 aryl, C7-C10 aralkyl, and C7-C10 alkaryl groups. A process for preparing the catalyst component and an active catalyst comprising the catalyst component and useful in polymerization, such as ethylene polymerization.