Skin cosmetic compositions containing a weak carboxylic acid and random copolymers of ethylene oxides and propylene oxides
US6610741B1 · kind B1 · utility
1Cited by
10References
3Claims
0Family size
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Key dates
| Filing date | Aug 16, 2000 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Aug 18, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/75
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cosmetic skin compositions containing a weak carboxylic acid and a random copolymer of ethylene oxide and propylene oxide. The copolymer reduces skin irritation that is sometimes caused by the weak acid active without reducing delivery of weak acids to skin tissues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.