Process for making detergent compositions containing nitrogenous cationic surfactants
US4238373A · kind A · utility
17Cited by
9References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Mar 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for quaternization of tertiary amines in a reaction medium comprising a water soluble or water dispersible organic compound of MWt>240 which is liquid at the quaternization reaction temperature, one of the quaternization reactants having a BPt<200.degree. C. and being volatile relative to the other reactants, to permit its removal after the completion of quaternization to leave a product comprising an intimate mixture of a cationic surfactant and the reaction medium in a weight ratio of 2:1 to 1:50. Preferably the reaction medium is an ethoxylated nonionic surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.