Method for preparing high viscosity index poly-alpha-olefin

US12365848B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD. · CN

Inventors

• Zhaolin Yin · Longbeilingcun, CN
• Yucai Cao · Shanghai, CN
• Dongwen Zhong · Longbeilingcun, CN
• Shengbiao Liang · Maoming, CN
• Yongqing Li · Lo Wu, CN
• Zhenyu Liu · Greensburg, US
• Lujian Li · Longbeilingcun, CN
• Xiaofeng Ye · Shanghai, CN
• Weizhe Wang · Longbeilingcun, CN
• Chen NI · Shanghai, CN
• Jie Li · Shanghai, CN
• Fan Wang · Shanghai, CN
• Guoyu Liu · Longbeilingcun, CN
• Shibing Chen · Longbeilingcun, CN
• Xionghua Chen · Longbeilingcun, CN
• Wenjun Jiang · Shanghai, CN
• Zhenxu Lu · Longbeilingcun, CN
• Si-Yun Tan · New Taipei, TW
• Ruizhen Lu · Longbeilingcun, CN

Key dates

• Filing date: Oct 30, 2020
• Grant date: Jul 22, 2025
• Expiry date: Oct 30, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2070/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method for preparing a high viscosity index poly-α-olefin subjects α-olefin to a polymerization reaction in the presence of a metallocene catalyst to obtain a poly-α-olefin. The polymerization reaction is carried out in the absence of a solvent, and the metallocene catalyst is formed of, or is formed by interaction between, a metallocene compound and an activator.