Aminated polymeric additives for fuel and lubricants
US4068057A · kind A · utility
7Cited by
9References
4Claims
0Family size
Assignee
Inventors
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
Hydrocarbon polymers, preferably polymers having a degree of crystallinity of less than about 25 weight percent and comprising about 2 to 98 weight percent ethylene, and one or more C.sub.3 to C.sub.28 alpha-olefins, are mechanically grafted under an inert atmosphere and at elevated temperatures, in the presence of an amine compound, to form an amino-grafted polymer. The resulting aminated polymers are useful as sludge dispersants for fuels and lubricants. When the aminated polymers have a higher 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.