Functionalized copolymers and lubricating compositions thereof
US10035968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2011 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a dimercaptothiadiazole salt of a copolymer comprising units derived from monomers (i) an ?-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof (typically carboxylic acid groups or an anhydride), are partially esterified with an alcohol, or mixtures thereof, and wherein at least a portion of carboxylic acid groups not esterified are reacted with an amine. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of lubricating composition in a mechanical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.