Thickended aqueous surfactant solutions and their use in cosmetic preparations
US4992263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1988 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Sep 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/01
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Nitrogen-free thickeners in aqueous surfactant solutions comprising polyethoxylates of mono- and/or polyunsaturated C.sub.12 -C.sub.22 fatty alcohols having an average degree of ethoxylation of 2 to 5, which also contain 1 to 2 terminal propylene oxide groups attached by condensation instead of the corresponding number of ethylene oxide groups. The products may also be used in admixture with dissolved inorganic electroltye salts and with polyethoxylates of saturated fatty alcohols. These surfactant solutions are useful in the formulation of personal hygiene preparations such as hair shampoos, foam baths, shower baths, handwashing pastes and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.