Cosmetic compositions comprising liquid crystal coloring agents and their use
US6346237B2 · kind B2 · utility
11Cited by
7References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q3/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a cosmetic composition, more particularly a make-up cosmetic composition, comprising a liquid crystal (LC) coloring agent which makes it possible to obtain novel coloring effects, in particular to obtain distinct colors depending on the incidence of the light and the angle of observation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.