Method for preparing high viscosity index poly-alpha-olefin

• Main Authors: Li, Lujian, Ye, Xiaofeng, Liang, Shengbiao, Li, Jie, Wang, Weizhe, Ni, Chen, Lu, Ruizhen, Liu, Zhenyu, Chen, Xionghua, Liu, Guoyu, Zhong, Dongwen, Wang, Fan, Tan, Si, Li, Yongqing, Cao, Yucai, Chen, Shibing, Jiang, Wenjun, Lu, Zhenxu, Yin, Zhaolin
• Format: Patent
• Language: English
• Published: 22.07.2025
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; FUELS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

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.