Lipsticks compositions containing association structures
US6325995A · kind A · utility
22Cited by
13References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1993 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Sep 7, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q1/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to lipstick compositions which comprise thermodynamically association structures, preferably lamellar liquid crystals and/or reverse hexagonal liquid crystals, which are used to deliver polar solvent/moisturizers through a non-polar (lipophilic) medium. The association structures consist essentially of from about 3% to about 96%, by weight, of polar solvent (e.g. glycerine) and from about 4% to about 97% of surfactant having a Krafft point at or below about ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.