Water-in-oil emulsion comprising pigments in the water phase
US8758783B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jan 8, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/065
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided is a composition and especially a cosmetic composition comprising: A) an oily phase and B) an aqueous phase which comprises: a) water, b) a pigment, c) a modified phospholipid, and d) an alkyl substituted diol comprising 5 or more carbons; wherein the composition is in the form of an water-in-oil emulsion, and wherein the pigment essentially remains in the water phase. Also provide is a method of producing the composition which comprises: 1) obtaining a mixture of a modified phospholipid and an alkyl substituted diol comprising 5 or more carbons in the alkyl chain; 2) obtaining a mixture of water and a pigment; 3) combining the mixture of the modified phospholipids and the alkyl substituted diol with the mixture of the pigment and water; 4) obtaining an oil composition; and 5) combining the mixture from 3) with the oil composition of 4) to form an water-in-oil emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.