Lubricants and functional fluids containing substituted sulfolanes as seal swelling agents
US4029587A · kind A · utility
39Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1975 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Jun 23, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions useful as lubricants and functional fluids comprise an oleaginous liquid of lubricating viscosity, typically a mineral oil, and a 3-alkoxysulfolane or the like, in which the alkoxy group contains at least about 4 and preferably about 4-25 carbon atoms, as a seal swelling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.