Keratin fiber strengthening agent and method for strengthening keratin fiber
US6379659B1 · kind B1 · utility
3Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1998 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A keratin fiber strengthening agent comprising 0.001 to 20% by weight of at least one (2S,3R)-2-acylaminoalkane-1,3-diol represented by formula (I): wherein R1 represents a straight-chain alkyl group having 9 to 17 carbon atoms; and R2 represents an acyl group having 2 to 24 carbon atoms which may contain at least one hydroxy group or unsaturated bond is disclosed. A method for improving physical properties, such as breaking strength, of keratin fiber such as hair comprising applying the keratin fiber strengthening agent to keratin fiber by adhesion, coating or impregnation is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.