Natural pigment-containing flowable powder
US6171602A · kind A · utility
17Cited by
5References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing a stable natural pigment composition comprising combining (a)a liquid hydroalcoholic base containing a natural pigment, a UV absorber, and an antioxidant, with (b) an absorbent base containing a porous bead, and allowing the absorbent base to absorb the liquid base. The invention also relates to the natural pigments per se as well as cosmetic compositions containing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.