Methylol polyesters of C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid, their preparation and use as additives for lubricants and fuels
US4209411A · kind A · utility
8Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1979 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Mar 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methylol polyester derivatives of C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid which are the equimolar reaction products of said C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid and a cyclic poly(methylol) compound provide activity: in fuels as rust inhibitors; in automatic transmission fluids as copper corrosion inhibitors; and, in automotive, industrial and lubricating oils as sludge dispersants, rust-inhibitors, friction reducers (lubricity agents) and copper alloy corrosion inhibitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.