Lubricant and functional fluid compositions containing viscosity index improver
US9528069B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2012 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosed invention relates to lubricant or functional fluid compositions containing viscosity index improvers in the form of self-healing polymers. The polymers may comprise one or more cleavable linkages, such as one or more disulfide bonds and/or one or more diene/dienophile linkages, to permit the polymer to reform if cleaved during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.