Preparation of decene oligomers and use thereof as lubricating oils

US4822945A · kind A · utility

Assignee

• BASF SE

Inventors

• Klaus Bronstert · Eisenberg (Pfalz), DE
• Helmut Mach · Heidelberg, DE
• Hans Peter Rath · Havelsee, DE
• Hans-Michael Walter · Freinsheim, DE

Key dates

• Filing date: Dec 3, 1987
• Grant date: Apr 18, 1989
• Expiry date: Dec 3, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2020/01
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Decene oligomers useful with or without hydrogenation as basis for synthetic lubricating oils are prepared by oligomerizing decene-1 in the presence of an alkylaluminum chloride catalyst and an alkyl halide cocatalyst, in a first reaction stage the decene-1 being mixed with the catalyst at from 0 to +25.degree. C. and being kept in contact therewith within the same temperature range for not less than 15 minutes and in a second reaction stage the cocatalyst being added at from 0 to +35.degree. C. in the course of a period of from 15 to 180 minutes.