Quaternary ammonium surfactants derived from tertiary amines and fabric softeners containing quaternary ammonium surfactants
US5637743A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cationic surfactant compound comprising, in the form of a quaternary ammonium salt, a product of condensation between, on the one hand a fraction of saturated or unsaturated fatty acids, or of derivatives of said acids chosen from the group comprising esters, anhydrides and acid chlorides, and on the other hand at least one tertiary amine, characterized in that, in combination: PA1 the alkyl chains of the tertiary amine together contain from 4 to 12 carbon atoms PA1 the alkyl chains of the tertiary amine together contain from 1 to 4 functions each chosen from the group comprising hydroxyl and amine functions PA1 the fatty acids fraction/tertiary amine mole ratio is between 1.85 and 1.40 PA1 the fatty acids each possess a hydrocarbon chain in which the number of carbon atoms is between 5 and 23.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.