One-step process for preparation of overbased calcium sulfonate greases and thickened compositions
US4597880A · kind A · utility
43Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | May 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M159/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved 1-step process for the preparation of thixotropic overbased calcium sulfonate complex greases or thickened compositions containing calcium sulfonate as a dispersing agent and containing calcium carbonate in the form of calcite crystals in extremely finely divided form colloidally dispersed in said greases or thickened compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.