Cosmetic composition containing amino acid copolymers which is useful as a moisturizer
US5204099A · kind A · utility
102Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to the cosmetic use of an amino acid copolymer of the statistical formula ##STR1## in which: a and b are each independently 1 or 2; PA1 A and B are similar or different and are an amino acid selected from: arginine, serine, proline, glycine, histidine, alanine, lysine, ornithine, citrulline, urocanic acid, asparagine or tyrosine; PA1 m, n, p and q are integers such that the ratio (n+q)/(m+p) is between 0.5 and 4; and PA1 z is an integer such that the average molecular weight is between 1000 and 100,000; and/or one of its salts. Application: cosmetic products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.