Alkoxysilane derivatives of N-acyl amino acids, N-acyl dipeptides, and N-acyl tripeptides, and particles and stable oil-in-water formulations using the same
US9358200B2 · kind B2 · utility
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Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Nov 28, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/62
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Hydrophilic N-acylamino acid, N-acyl dipeptide, and N-acyl tripeptide substituted silanes are prepared which can be utilized as reactive surface treatments for particles of pigments, minerals, and fillers. These treated particles form stable dispersions in the aqueous phase of oil-in-water mixtures that are suitable for cosmetic applications. The treated particles may also be used in pressed powder and color cosmetic formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.