Composite powder, cosmetics containing the same, and process for producing composite powder
US7682604B2 · kind B2 · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | May 29, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2220/106
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide a composite powder, cosmetics containing the same, and the production method of the same. When blended into cosmetics, the above-described composite powder corrects skin surface unevenness and imperfections in skin color, renders a natural finish, and have durability in finished makeup. In order to achieve the above-mentioned object, the composite powder of the present invention comprises flaky substrate powder and barium sulfate particles or zinc oxide particles that adhere to the surface, in protrusions, of the substrate powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.