Hair cosmetic, aminocarboxylic acid amide and method for producing the same
US7524486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2004 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hair cosmetic which can impart, to hairs, flexibility, smoothness and oily feeling when the hairs are wetted and smoothness, softness and combing easiness after the hairs are dried are provided, the hair cosmetic comprising an amine represented by the formula (I):(wherein R1 represents a C8-40 alkyl group or alkenyl group or a group represented by the formula R5O-(AO)n—CmH2m—(R5 represents a C8-40 alkyl group or alkenyl group having 8 to 40 carbon atoms, A represents a C2-3 alkylene group, n denotes a number from 0 to 30 in average and m denotes an integer of 2 or 3), R2 represents a C1-5 alkylene group, R3 represents H, a C1-24 alkyl group, alkenyl group or hydroxyalkyl group or a C6-28 aryl group or arylalkyl group, R4 represents H, a C1-5 alkyl group, alkylene group or hydroxyalkyl group or a C6-28 aryl group or arylalkyl group, p denotes an integer from 1 to 3, q and r denote integers from 0 to 2 and p+q+r is equal to 3. Also, the amine (I) can be produced with high selectivity and highly economically by reacting a primary amine with an aminocarboxylic acid to run amidation. An amine represented by the formula (1), its salt or quaternary ammonium salt are also provided:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.