Grease composition for constant velocity joints
US6037314A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A grease composition for constant velocity joints comprises (a) a base oil; (b) a urea thickener; (c) at least one organic molybdenum compound selected from the group consisting of molybdenum dithiocarbamate and molybdenum dithiophosphate; and (d) at least one calcium salt selected from the group consisting of calcium salts of petroleum sulfonates, calcium salts of alkyl aryl sulfonates, calcium salts of salicylate, calcium salts of phenates, calcium salts of oxidized waxes, overbasic calcium salts of petroleum sulfonates, overbasic calcium salts of alkyl aryl sulfonates, overbasic calcium salts of salicylate, overbasic calcium salts of phenates, and overbasic calcium salts of oxidized waxes. The grease composition exhibits good performance for reducing vibration and effectively lubricates the constant velocity joints to effectively reduce frictional wear and to eliminate vibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.