Process for preparing sulfonated paraffins with a larger content of polysulfonated species
US5364960A · kind A · utility
3Cited by
11References
8Claims
0Family size
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Key dates
| Filing date | Nov 16, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Nov 16, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for obtaining sulfonated paraffins containing more than 50% of polysulfonates, by weight, by causing essentially linear C.sub.12 -C.sub.20 paraffins to react with SO.sub.2 and O.sub.2, at a temperature comprised within the range of from 55 to 100.degree. C. and in the presence of a peroxide belonging to the class of peroxy dicarbonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.