Polyester lubricant additives, their preparation and compositions containing them
US4070370A · kind A · utility
18Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1974 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Sep 17, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Polyesters suitable for use as lubricant additives are prepared by reacting a di-carboxylic acid or anhydride having a branched chain alkyl or alkenyl substituent containing at least 30 carbon atoms with a compound having the formula: ##STR1## wherein R and R.sup.1 are specified substituents which between them possess from 2 to 6 free hydroxyl groups. Lubricating compositions containing these polyester additives are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.