Manufacture of synthetic lubricant additives from internal olefins using boron trifluoride catalysis
US4434308A · kind A · utility
30Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1982 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Apr 28, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for the manufacture of synthetic lubricant additives from internal olefins is described. The process utilizes boron trifluoride catalysis with a promoter to produce oligomer mixtures that have surprisingly low viscosities at low temperatures and surprisingly high viscosity indexes as compared with the oligomers found in other methods. It is important that internal olefins be used almost exclusively in the method of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.