Overbased calcium sulfonate
US5578235A · kind A · utility
15Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M159/24
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method of preparing a calcium sulfonate having at least a TBN of 500 where the method comprises reacting CaO, Ca(OH).sub.2 and H.sub.2 O, and synthetic monoalkylbenzene sulfonate and synthetic dialkylbenzene sulfonate in certain molar ratios, respectively, for a sufficient length of time to produce the overbased calcium sulfonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.