Cosmetics with hydrofluoroether (HFE)
US6444213B1 · kind B1 · utility
11Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic containing at least 1% by weight of hydrofluoroether having a viscosity of less than 5 mPa·s at 25° C., which is represented by the general formula (1):CnHmFl—O—CxHyFz  (1)wherein n is a number of 1 to 12, m is a number of 0 to 25, l is a number of 0 to 11, m+l=2n+1, x is a number of 1 to 12, y is a number of 0 to 25, z is a number of 0 to 11, and y+z=2x+1, provided that m and y are not be simultaneously zero, and l and z are not be simultaneously zero, gives no environment disruption, is highly safe for the skin and improves the feeling in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.