[EN] 1-HEXYL-1H-PYRAZOLE-4,5-DIAMINE HEMISULFATE, AND ITS USE IN DYEING COMPOSITIONS [FR] HÉMISULFATE DE 1-HEXYL-1H-PYRAZOLE-4,5-DIAMINE ET SON UTILISATION DANS DES COMPOSITIONS DE COLORATION
1-Hexzl-1H-Pyrazole-4,5-Diamine Hemisulfate, and Its Use in Dyeing Compositions
申请人:The Procter & Gamble Company
公开号:US20130212810A1
公开(公告)日:2013-08-22
1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, as represented in formula (IX-a), and its use in oxidative dyeing composition. This pyrazole salt was found to combine good stability as raw material and good shade intensity with a range of common couplers when formulated in hair dyeing composition.
Telescoping Synthesis of 5-Amino-4-Nitroso-1-Alkyl-1H-Pyrazole Salt
申请人:The Procter & Gamble Company
公开号:US20130217891A1
公开(公告)日:2013-08-22
A telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt derivatives of formula (I), the compound (I) itself, and its use as an intermediate in the fabrication of 1-alkyl-4,5-diaminopyrazole salts of general formula (IX). The compounds of formula (IX) can be used as precursor dyes in oxidative hair dye compositions.
R is a mono- or poly-substituted or unsubstituted, straight or branched, saturated or mono- or poly-unsaturated, alkyl group. HZ and HZ′ are organic or mineral acids.
[EN] TELESCOPING SYNTHESIS OF 5-AMINO-4-NITROSO-1-ALKYL-1H-PYRAZOLE SALTS<br/>[FR] SYNTHÈSE MONOTOPE DE SELS DE 5-AMINO-4-NITROSO-1-ALKYL-1H-PYRAZOLE
申请人:PROCTER & GAMBLE
公开号:WO2013122989A1
公开(公告)日:2013-08-22
A telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt derivatives of formula (I), the compound (I) itself, and its use as an intermediate in the fabrication of 1-alkyl-4,5-diaminopyrazole salts of general formula (IX). The compounds of formula (IX) can be used as precursor dyes in oxidative hair dye compositions. R is a mono- or poly- substituted or unsubstituted, straight or branched, saturated or mono-or poly- unsaturated, alkyl group. HZ and HZ' are organic or mineral acids.
[EN] OXIDATIVE DYE COUPLERS WITH NOVEL AUXOCHROME SUBSTITUENTS AND AZOMETHINE DYES AND LEUCO FORMS THEREOF<br/>[FR] COUPLEURS COLORÉS OXYDANTS COMPRENANT DE NOUVEAUX SUBSTITUANTS AUXOCHROMES ET COLORANTS AZOMÉTHINIQUES ET LEURS FORMES LEUCODÉRIVÉES
申请人:COTY INC
公开号:WO2019032671A1
公开(公告)日:2019-02-14
The present invention concerns an auxochrome substituent for an oxidative dye coupler. The auxochrome substituent enables ready developer reaction with the coupler to form azomethine and leuco dyes. Manipulation of the auxochrome substituent enables a bathochromic or hypsochromic shift of the light absorbance by the azomethine dye formed with the auxochrome substituted coupler.
CALCULATING A COMPOSITION FOR A PREPARATION FOR TREATING HAIR FIBERS
申请人:Noxell Corporation
公开号:EP3296961A1
公开(公告)日:2018-03-21
A method and apparatus for calculating a composition for a preparation for treating hair fibers. The method comprises: obtaining (330) a target specification, wherein the target specification comprises one or more numerical parameters defining a desired appearance of the hair fibers; providing (340) a first computational model that relates a composition of a preparation to a predicted appearance of the hair fibers when treated by that preparation; and calculating (350), using the first computational model and the target specification, a composition for the preparation that is predicted to produce, if the hair fibers are treated with the preparation, an appearance similar or identical to the desired appearance