Free-flowing pseudoplastic cosmetic compositions/suspensions
US5556628A · kind A · utility
76Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1993 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Aug 5, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/596
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Storage-stable, pseudoplastic free-flowing cosmetic compositions/formulations, for example shampoos, shower and exfoliating gels and hair lotions, comprise a stable and homogeneous suspension, in water, of water-insoluble particulates, and which further comprise at least one anionic surfactant, at least one nonionic or amphoteric cosurfactant and at least one electrolyte, these surfactants being present in such amounts as to impart pseudoplasticity thereto with a yield point of at least 0.2 Pa and constituting spherulites suspended within a lamellar phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.