Lubricant
US6346504B1 · kind B1 · utility
7Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Jul 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ester based lubricant, particularly suitable for 4-stroke engines comprises at least one ester of a saturated, branched chain monohydric alcohol having at least 8 carbon atoms and a saturated branched chain aliphatic monocarboxylic acid having at least 10 carbon atoms. The esters have a kinematic viscosity of at most 35 cSt (40° C.), a non-polarity index of at least 100, a Noack evaporation loss of at most 10% and a pour point below −30° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.