Enhanced substantivity of cosmetic ingredients on keratinous substrate
US9365594B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Jun 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides compositions and methods for reversible covalent binding of benefit agents to keratinous substrates through the reaction of a dicarbonyl functional group on the surface of a benefit agent with reactive amines on keratinous surfaces. The deposits formed are durable and resistant to transfer, but are readily removed by contacting the deposit with an amine-containing solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.