Ethylene oxide/propylene oxide copolymers as co-surfactants with detergency boosting properties in compositions also containing alkyl benzene sulfonate and ethoxylated alcohol
US5152933A · kind A · utility
18Cited by
15References
11Claims
0Family size
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Key dates
| Filing date | Aug 20, 1990 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Aug 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/831
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Low levels (2-6 percent active) of ethylene oxide/propylene oxide block copolymers have been found to significantly enhance the oily and particular soil removal of detergents containing anionic surfactants and ethoxylated alcohols or other oxyalkylate surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.