Stabilization of vitamins in water-in silicone oil (W/O) emulsions
US6861061B2 · kind B2 · utility
6Cited by
12References
6Claims
0Family size
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Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A water-in-oil (W/O) emulsion with a discontinuous aqueous phase dispersed in a continuous oil phase has in the continuous oil phase a linear silicone polyether, an α,ω-diene crosslinked silicone elastomer, and a nonionic organic emulsifier. The W/O emulsion is otherwise free of silicone elastomers prepared using unsaturated compounds containing silicon atoms. Either the discontinuous aqueous phase of the W/O emulsion or the continuous oil phase of the W/O emulsion contains a water soluble or oil soluble active ingredient such as a vitamin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.