Zinc-free lubricating composition
US10738263B2 · kind B2 · utility
2Cited by
0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2016 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Dec 10, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/255
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to a zinc-free lubricating composition for an internal combustion engine containing a phosphorus anti-wear agent, an ashless antioxidant, and an oxyalkylated phenol compound. The lubricating composition provides wear protection, deposit control, and improved acid control with reduced levels of metal-containing additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.