Cosmetic temporary coloring compositions containing protein derivatives
US5192332A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Oct 7, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a cosmetic temporary coloring composition which comprises a cosmetically acceptable support and, as an active ingredient, at least one chemically modified protein derivative which contains residues of molecules of dye grafted onto the protein chain. Thus, certain of the side chains of the protein derivative having amine, alcohol or thiol functions are substituted by residues of dye molecules. The present invention further provides a process for the temporary coloring of human hair, nails or skin comprising applying thereto in an amount effective to color the human hair, nails or skin a composition containing a solution in water, a lower mono-alcohol or polyol or an aqueous alcoholic mixture wherein the alcohol is present in an amount ranging from 0.5 to 50 percent by weight of the chemically modified protein derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.