Silicon ether compounds and a method for the preparation thereof

US7399812B2 · kind B2 · utility

Assignees

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

Inventors

• Lunjia Xie · Beijing, CN
• Mingzhi Gao · Beijing, CN
• Siyuan Zhao · Beijing, CN
• Jing Ma · Beijing, CN
• Zhufang Sun · Beijing, CN
• Haitao Liu · Boise, US
• Tianyi Li · Nanjing, CN
• Mingsen Zhang · Beijing, CN
• Changjiang WU · Beijing, CN

Key dates

• Filing date: Feb 16, 2005
• Grant date: Jul 15, 2008
• Expiry date: Oct 4, 2025

Classification

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

Abstract

The present invention relates to silicon ether compounds having a general formula (I), a method for the preparation thereof and use thereof as a component of catalysts for polymerization of olefins. In particular, in propylene polymerization, catalyst systems comprising the silicon ether compounds as external electron donor component exhibit good hydrogen response, and can be used to prepare polymer having high isotacticity at high yield.wherein R1-R10 groups are as defined in the description.