Oily dispersion and cosmetic material incorporating this oily dispersion
US8293257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2011 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/651
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oily dispersion of an inorganic microparticle oxide powder that exhibits excellent texture has superior compatibility with other cosmetic material components. The oily dispersion contains only two components of a dispersion medium and a surface-treated inorganic microparticle oxide powder, wherein the dispersion medium is an oil, the surface-treated inorganic microparticle oxide powder is a powder surface-treated with branched fatty acid containing isostearic acid as a primary constituent component or a metal salt containing isostearic acid as a primary constituent component at an amount of 1 to 30% by weight with respect to the powder as a base material, and the surface-treated inorganic microparticle oxide powder has a solid concentration of 25% by weight or more and a viscosity of 2,000 mPa·s or less at 25° C. in the preparation of the oily dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.