Silicone surfactant, W/O emulsion composition, powder composition, and cosmetic/medical application thereof
US10113037B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 3, 2014 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A novel silicone surfactant comprises a co-modified organopolysiloxane copolymer having a long chain alkyl group, a polyether group, and a specific average polymerization degree of its siloxane back-bone. The silicone surfactant can be used for an emulsifier (especially for a water-in-oil (W/O) type emulsifier), a surface treatment agent, a powder treatment agent, or a dispersant in a cosmetic composition or a medicament. A W/O emulsion composition comprising the silicone surfactant; a powder composition where the surface of the powder is treated using the silicone surfactant as a powder treatment agent; a powder composition further comprising an oil agent and having a form of powder in oil dispersion; and a preparation for external use, particularly a cosmetic composition or medicament, comprising the same; are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.