Hair treatment composition and methods
US8016895B2 · kind B2 · utility
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3References
12Claims
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Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
wherein D is a chromophore; L is a linking group selected from SO2, NHCO, and NHSO2; Q is a hydrogen or halogen atom; and R is selected from C1-C4 alkyl, (CH2)nCOOH, (CH2)nCONH2, (CH2)nSO3H, (CH2)nCOOM, (CH2)nPO3H, (CH2)nOH, (CH2)nSSO3″, (CH2)nNR12, (CH2)nN+R1H2, (CH2)nNHCOR1, PhSSO3″, PhSO3H, PhPO3H, PhNR12, PhN+R13, (CH2)2CH(SH)R1(CH2)3COOH, and n is an integer in the range of 1 to 4 wherein within the same molecule each n is not necessarily the same integer; M is a cation of an alkaline earth metal, alkali metal, NH4+ or NR13+; and R1 is C1-C4 alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.