Hydroxyesters as coupling agents for surfactant formulations
US5830842A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are stable monophasic liquid compositions comprising water, one or more cationic, anionic, amphoteric and/or nonionic surfactants, exhibiting partial solubility in water or in concentrated formulations, and one or more coupling agents of the formula (1) EQU R.sup.A --C(O)O--R.sup.C --(OC(O)R.sup.E).sub.0-1 (1) wherein R.sup.A is C.sub.1 -C.sub.15 alkyl with 0-3 hydroxyl substituents, R.sup.C is C.sub.1 -C.sub.10 alkyl with 0-3 hydroxyl substituents, and R.sup.E is C.sub.1 -C.sub.15 alkyl with 0-1 hydroxyl substituents, wherein the compounds of formula (1) contain 7 to 16 carbon atoms and a total of 1-3 hydroxyl substituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.