Zinc and phosphorus containing transmission fluids having enhanced performance capabilities
US6482778B2 · kind B2 · utility
9Cited by
16References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1999 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Transmission fluid compositions comprising a zinc detergent and at least one phosphorus-containing additive have enhanced performance capabilities. The use of the zinc detergent and the phosphorus-containing additive provide transmission fluids that exhibit high steel-on-steel coefficients of friction, particularly useful in continuously variable transmissions (CVT).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.