[EN] NEW COSMETIC COMPOSITIONS COMPRISING CATIONIC DYES AND PROCESS FOR DIRECT DYEING OF KERATIN FIBERS<br/>[FR] NOUVELLES COMPOSITIONS COSMÉTIQUES COMPRENANT DES COLORANTS CATIONIQUES, ET PROCÉDÉ DE COLORATION DIRECTE DE FIBRES DE KÉRATINE
申请人:ALFA PARF GROUP S P A
公开号:WO2014202152A1
公开(公告)日:2014-12-24
The present invention relates to new compositions for dyeing keratin fibers comprising, in a medium suitable for dyeing, one or more cationic dye of general formula (I) or (II), or a physiologically tolerated adduct thereof with an acid: (II), as well as to a process for dyeing keratin fibers comprising one or more cationic dye of general formula (I) or (II), or a physiologically tolerated adduct thereof with an acid.
Partial Reduction of Dinitroarenes to Nitroanilines with Hydrazine Hydrate
作者:Nagaraj R. Ayyangar、Uttam R. Kalkote、Ananda G. Lugade、Pandurang V. Nikrad、Vasant K. Sharma
DOI:10.1246/bcsj.56.3159
日期:1983.10
such as hydroxyl and amine groups could be conveniently reduced with 3 molar equivalents of hydrazinehydrate in presence of Raneynickelcatalyst in ethanol/1,2-dichloroethane solvent mixture to give a product wherein one of the two nitro groups was reduced to the amino group. The yields of the partial reduction products are good. Under similar conditions alkoxyl substituents in the o,p-position to the
Symmetrical diazo compounds containing 2-pyridinium groups and a cationic or non-cationic linker, compositions comprising them, method of coloring, and device
申请人:David Herve
公开号:US20060156488A1
公开(公告)日:2006-07-20
The present disclosure relates to symmetrical cationic diazo compounds of formula (I), the resonance forms, and also the acid addition salts and/or the solvates thereof:
The present disclosure further relates to dyeing compositions comprising such compounds as a direct dye in a medium appropriate for the dyeing of keratin fibers, and also to a method of coloring keratin fibers that employs this composition, and a multi-compartment kit containing such compositions.
[DE] NEUE THIAZOLYLMETHYL-PYRAZOLE, VERFAHREN ZU DEREN HERSTELLUNG SOWIE DEREN VERWENDUNG IN FÄRBEMITTELN FÜR KERATINFASERN<br/>[EN] NOVEL THIAZOLYLMETHYL PYRAZOLES, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF IN DYES FOR KERATIN FIBERS<br/>[FR] NOUVEAUX THIAZOLYLMETHYLE-PYRAZOLES, PROCEDE DE REALISATION ET UTILISATION DANS DES COLORANTS POUR FIBRES DE KERATINE
申请人:WELLA AG
公开号:WO2004106332A1
公开(公告)日:2004-12-09
4,5-Diaminopyrazole der allgemeinen Formel (I), worin R eine geradkettige oder verzweigte eine Cl -C6-Alkylgruppe, eine unsubstituierte Phenylgruppe oder eine einfach oder mehrfach substituierte Phenylgruppe darstellt, worin die Substituenten an der Phenylgruppe unabhängig voneinander ausgewählt werden können aus einem Halogenatom, einer C1-C6-Carbonsäureestergruppe, einer geradkettigen oder verzweigten Cl -C6-Alkoxygruppe, einer durch ein oder zwei Heteroatome unterbrochenen geradkettigen oder verzweigten C1-C6-Alkoxygruppe, einer Hydroxyethoxygruppe, einer Dihydroxypropoxygruppe oder einer Nitrilgruppe; diese Verbindungen enthaltende Oxidationsfärbemittel für Keratinfasern sowie Verfahren zur Herstellung dieser Verbindungen.
Dyeing processes comprising at least one multi-carbosite, multi-group coupling agent for wash-protecting the color of artificially dyed keratin fibers
申请人:Lalleman Boris
公开号:US20080313821A1
公开(公告)日:2008-12-25
Disclosed herein is a cosmetic process for wash-protecting the color of artificially dyed keratin fibers, comprising applying to the keratin fibers at least one composition comprising at least one multi-carbosite, multi-group coupling agent, the coupling agent being an electrophilic hydrocarbon-based compound comprising neither an aldehyde group, nor a carboxylic acid group, nor a formol-generating group, the coupling agent comprising at least two identical reactive groups, the reactive groups not being carried by the same atom, if said atom is a carbon atom, and the coupling agent having a molecular weight of less than 500 g/mol.