Lubricating compositions with decarboxylated rosin acid
US12139687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure relates to a lubricating composition consisting essentially of a decarboxylated rosin acid (DCR), a base oil, and optional additives, and methods for using same. The decarboxylated rosin acid has a density of 0.9 to 1.0 g/cm3 at 20° C., a viscosity of 15 to 60 cSt at 40° C., and an acid value of <50 mg KOH/g. The lubricating compositions containing the DCR is characterized as having improved anti-wear and friction reducing properties, as well as improved electrical properties, and cooling performance for use in electric and hybrid vehicles. In embodiments, the lubricating composition exhibits a wear scar diameter of <350 μm, according to ASTM D6079.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.