High viscosity index lubricant compositions
US5113030A · kind A · utility
43Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1990 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Aug 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2020/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel synthetic lubricants having high viscosity index are made from lower olefins. These materials have a viscosity above about 2 cS at 100.degree. C. and viscosity index above about 130 and are characterized by internal methyl groups attached to side chain tertiary carbon atoms. Hydrocarbon lubricant can be based on propene feedstock with the resulting oligomer containing less than 2.5 methyl groups per 12 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.