Lubricant formulations and methods
US8084403B2 · kind B2 · utility
8Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2009 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Sep 11, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/252
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The embodiments described herein relate to particular formulations and methods that provide reduced engine deposits. The lubricant composition includes a base oil having a NOACK volatility of from about 5 to about 15 and a zinc dialkyl dithio phosphate composition. The zinc dialkyl dithio phosphate composition has at least about 65 mole percent of zinc dialkyl dithio phosphate compounds derived from all primary alcohols, wherein the zinc dialkyl dithio phosphate composition has greater than about 40 mole percent zinc dialkyl dithio phosphate compounds having alkoxy moieties derived from alcohols having four carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.