Ceramide dispersion and method for producing same
US8642052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Mar 10, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a ceramide dispersion which includes (1) ceramide-containing particles which contains a ceramide, which are dispersed in an aqueous phase as an oil-phase component, and which have a volume average particle diameter from 1 nm to 100 nm; and (2) a fatty acid component which is at least one of a fatty acid having a melting temperature not higher than 30° C. or a fatty acid salt; the amount of nonionic surfactant being 0 or not more than 0.1 times the total mass of the ceramide; the amount of an ionic surfactant other than the fatty acid component being 0 or less than 0.05 times the total mass of the ceramide; and the pH being from 6 to 8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.