Composite dyestuff of microcapsule type and cosmetic use thereof
US8680212B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2007 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 8, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composite dyestuff, characterized in that it is in the form of microcapsules composed of a polymer matrix of crosslinked polyurethane, polyurea and/or polyurethane/polyurea type obtained by interfacial polycondensation, and of a pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.