Catalyst component for polymerization of olefin and preparation method

US9068025B2 · kind B2 · utility

Assignees

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

Inventors

• Shibo Wang · Laishui, CN
• Dongbing Liu · Hangzhou City, CN
• Junling Zhou · Beijing, CN
• Xinping Lü · Beijing, CN
• Lei Zhang · Beijing, CN
• Bingquan Mao · Beijing, CN
• Baoquan Xing · Beijing, CN
• Xin Zhou · Shanghai, CN
• Changli Zhang · Beijing, CN

Key dates

• Filing date: Aug 19, 2011
• Grant date: Jun 30, 2015
• Expiry date: Dec 27, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.