Ashless lubricant composition
US9315760B2 · kind B2 · utility
1Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant composition with improved antioxidant capability is provided by way of an additive composition containing a metal free sulfur-containing compound, an aromatic amine, and a hindered amine. Particularly effective metal-free sulfur-containing compounds include ashless dithiocarbamates, such as methylenebis(dibutyldithiocarbamate), and sulfurized fatty acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.