Multi-purpose additive compositions and concentrates containing same
US4320019A · kind A · utility
77Cited by
12References
52Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1978 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Apr 17, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reaction products prepared by reacting PA1 (a) interpolymers of ethylene, one or more C.sub.3 -C.sub.8 .alpha.-monoolefins, and one or more polyenes selected from non-conjugated dienes and trienes, with PA1 (b) one or more olefinic carboxylic acid acylating agents to form an acylating reaction intermediate which is further reacted with PA1 (c) an amine, are disclosed. These reaction products have been found useful as multi-functional additives to a variety of lubricating oils for enhancing their dispersancy as well as improving their viscosity-temperature relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.