Magnesium low base number sulphonates
US5883056A · kind A · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Sep 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M159/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Magnesium low base number (LBN) sulphonates derived from high molecular weight sulphonic acids have low viscosity and are chloride free. The magnesium low base number sulphonates are not skin sensitisers. In their preparation neutralization of high molecular weight sulphonic acids or partially neutralized soaps of high molecular weight sulphonic acids is completed by the use of a high base number sulphonate in conjunction with a carboxylic acid. The process does not require the use of chloride containing promoters and produces low chloride products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.