Lubricant additives
US5384055A · kind A · utility
4Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1992 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Nov 16, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2217/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant additive composition and method for production is disclosed comprising the adduct of an olefinic oligomer and an enophile, said olefinic oligomer comprising the product of the oligomerization of C.sub.2 to C.sub.24 alpha-olefin feedstock, or mixtures thereof, under oligomerization conditions in contact with a reduced valence state Group VIB metal catalyst on porous support. Maleic anhydride is a preferred enophile. The maleic anhydride adduct is reacted with polyamines such as tetraethylene pentamine to form the corresponding alkenyl bis-succinimide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.