Transparent cosmetic composition that reflects infrared radiation and its use for protecting the human epidermis against infrared radiation
US5000937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1988 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/05
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Transparent cosmetic composition that reflects infrared radiation and its use for protecting the human epidermis against infrared radiation. The invention relates to a transparent cosmetic composition comprising, by way of an agent that reflects infrared radiation for protecting the human epidermis, a substance which is dispersible in the cosmetic medium used, possessing a reflectance (R) of infrared radiation equal to at least 45%, and of which a 2% strength dispersion in vaseline possesses an optical transmission in the visible of at least 85%, chosen from a diatom of particle size less than 100 microns, hollow glass microspheres of size less than 100 microns, a bismuth oxychloride of particle size less than 75 microns and zirconium powder covered ceramic microparticles of particle size less than 8 microns. This cosmetic composition can also contain 0.5 to 20% by weight of UV-A, UV-B or broad-band screening agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.