Catalyst component for ethylene polymerization, a process for preparing thereof and catalyst comprising the same

US7172988B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• Beijing Research Institute of Chemical Industry · CN

Inventors

• Kejing Gao · Beijing, CN
• Dongbing Liu · Hangzhou City, CN
• Wei-Ming Chen · Hsinchu, TW
• Guirong Fan · Beijing, CN
• Xinping Lü · Beijing, CN
• Jingyan An · Beijing, CN
• Ying Guan · Chongqing, CN
• Jun Zhang · Peachtree City, US
• Qinfang Zhao · Beijing, CN

Key dates

• Filing date: Oct 15, 2003
• Grant date: Feb 6, 2007
• Expiry date: Dec 23, 2023

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, including an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at least one difunctional compound that reacts with the dihydrocarbyl magnesium compound and at least one titanium compound, wherein the difunctional compound is a mono-, di- or multi-halogenated alcohol or phenol having from 2 to 20 carbon atoms; or a mono-, di- or multi-halogenated acyl halide having from 2 to 20 carbon atoms. Also, a process for preparing the catalyst component and use thereof.