Low viscosity transmission fluids with enhanced gear fatigue and frictional performance
US9340746B1 · kind B1 · utility
3Cited by
23References
19Claims
0Family size
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Key dates
| Filing date | Apr 13, 2015 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Apr 13, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant composition, a method for improving lubrication and a method for lubricating a machine. The lubricant composition includes a) a major amount of a base oil having a kinematic viscosity between 2 and 4 cSt at 100° C.; and b) dioctyl phosphite in an amount providing from about 100 to about 1000 ppm phosphorus to the lubricant composition. The lubricant composition has a phosphorus weight ratio of component (b) to total phosphorus in the lubricant composition of from 0.4:1 to less than about 0.8:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.