Waxes having oil-in-water self-emulsifying and water gel-forming properties, compositions, uses and methods relating to same
US9827186B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jul 8, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to waxes useful for cosmetic applications having stable oil-in-water emulsion-forming properties and, in some embodiments, stable gel-in-water-forming properties. In some embodiments, the waxes exhibit self-emulsifying properties, and can be produced without the addition of any other substances to achieve the emulsion (e.g., co-emulsifiers, hydrophilic polymers, polar surfactants, rheological modifiers, gelling agents). The waxes generally comprise: (a) polyglyceryl fatty acid ester, (b) a glycerol fatty acid ester, and 9c) a fatty alcohol. In particular embodiments, the polyglyceryl fatty acid ester can be a polyglyceryl-2, -3, or -4 fatty acid ester, and the fatty chain lengths of (a)-(c) can range from C12 to C22. In more particular embodiments, the waxes can comprise polyglyceryl stearate, glyceryl stearate, and stearyl alcohol. Gels, oil-in-water emulsions, and other compositions produced from the waxes, as well as uses and methods relating thereto, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.