Aminated polymeric additives for fuel and lubricants
US4068056A · kind A · utility
20Cited by
10References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 1975 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Mar 5, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aminated polymers, resulting from the reaction of a hydrocarbon polymer with an oxygen-containing gas and an amine compound at elevated temperatures of from about 130.degree. C. to about 300.degree. C. provide a multi-functional additive for lubricants and hydrocarbon fuels. This reaction can be carried out if desired in an oil solution. The resulting aminated polymers are useful as sludge dispersants for fuel lubricants. When the aminated polymers have a high molecular weight, they are also useful as viscosity-index improvers with dispersant and/or pour point depressant activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.