Synthetic lubricant
US4263465A · kind A · utility
46Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2205/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low viscosity synthetic lubricant is prepared by polymerizing 1-butene to an oligomer containing a number average of about 8 to 18 carbon atoms and copolymerizing the oligomer with an alpha-monoolefin having 8 to 18 carbon atoms to produce a copolymer having an average of about 20 to 40 carbon atoms. Both polymerization reactions are catalyzed by a combination of boron trifluoride and a proton donor promoter. The synthetic lubricant is preferably stripped to remove lower boiling components, such as oligomers having 20 carbon atoms or less, and optionally hydrogenated for improved stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.