Substituted sulfolanes as seal swelling agents
US4029588A · kind A · utility
18Cited by
8References
10Claims
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
Substituted sulfolanes in which one of the substituents is a 3-alkoxy or 3-alkythio group, or the like, are useful for swelling seals in machinery (e.g., automatic transmissions) when dissolved in a functional fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.