Ceramides, process for their preparation and their applications in cosmetics and in dermopharmacy
US5665778A · kind A · utility
23Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1994 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Oct 12, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C235/24
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The ceramides according to the invention are compounds corresponding to the formula: ##STR1## in which: R.sub.1 is a C.sub.11 to C.sub.21 alkyl or alkenyl radical; PA1 R.sub.2 is a linear or branched C.sub.1 to C.sub.29 hydroxyalkyl radical or a C.sub.7 to C.sub.29 hydroxyaralkyl radical, these compounds being in the form of a racemic mixture of the erythro and threo diastereoisomers for the aminodiol part ##STR2## in erythro:threo ratios of from 85:15 to 20:80. Application to cosmetic and dermopharmaceutical compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.