Method for manufacture of pigment-containing cosmetic compositions
US5993834A · kind A · utility
45Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Oct 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/84
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a pigment composition comprising a pigment treated with a water-dispersible polyester or polyesteramide polymer in the absence of added water. The invention also relates to a method grinding a mixture containing of a pigment with a water-dispersible polyester or polyesteramide in the absence of added water. Such pigment compositions are particularly useful as the colorant in cosmetic compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.