Grease composition for constant velocity joints
US5604187A · kind A · utility
13Cited by
12References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 16, 1996 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Apr 16, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2010/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A grease composition for constant velocity joints which consists essentially of: (a) a base oil; (b) a diurea compound represented by the following general formula: EQU R.sup.1 NH--CO--NH--p--C.sub.6 H.sub.4 --CH.sub.2 --p--C.sub.6 H.sub.4 --NH--CO--NHR.sup.2 (wherein R.sup.1 and R.sup.3 may be the same or different and each represents an aryl group or a cyclohexyl group); (c) melamine cyanurate; (d) molybdenum disulfide; and (e) a phosphorus-free sulfur extreme pressure agent, and optionally (f) molybdenum dithiocarbamate. The grease composition exhibits excellent pitting-inhibitory effect and heat resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.