Non-aqueous liquid laundry detergents containing three surfactants including a polycarboxylic acid ester of a non-ionic
US4622173A · kind A · utility
33Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Dec 31, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/72
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A mixture of an acid terminated non-ionic surfactant and a quaternary ammonium salt surfactant provide better detergency than equivalent amounts of either of the surfactant compounds alone. The surfactant mixture is preferably used in conjunction with liquid non-ionic surfactant in heavy duty non-aqueous laundry detergents but can also be used in aqueous liquid detergent compositions and powder detergent compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.