Lamina and a cosmetic comprising the same
US4882143A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1987 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | Nov 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A lamina having an excellent capacity of scattering ultraviolet rays comprising a laminar substance as a matrix and a finely divided metal or metal compound dispersed therein, wherein the difference in refractive index between the laminar substance and the finely divided metal or metal compound is not less than 0.1, and a cosmetic comprising the same as a UV screener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.