Agent and method for oxidative coloring of keratin fibers
申请人:Pasquier Cecile
公开号:US20070067927A1
公开(公告)日:2007-03-29
The object of the present invention is a ready-to-use agent for coloring keratin fibers containing (i) at least one heterocyclic hydrazone derivative of formula (I), (ii) at least one aromatic enamine of formula (IIa) or an acid addition compound thereof (IIb) and (iii) at least one oxidant, a multicomponent kit and a method for coloring keratin fibers by use of said agent.
[EN] INTERMEDIATE COMPOUNDS FOR THE PREPARATION OF MESO-SUBSTITUTED CYANINE, MEROCYANINE AND OXONOLE DYES<br/>[FR] COMPOSÉS INTERMÉDIAIRES POUR LA PRÉPARATION DE COLORANTS DE TYPE CYANINES, MÉROCYANINES ET OXONOLES MÉSO-SUBSTITUÉES
申请人:AGFA GRAPHICS NV
公开号:WO2009080689A1
公开(公告)日:2009-07-02
The present invention provides new intermediate compounds enabling the preparation of N-meso substituted cyanine, merocyanine or oxonole dyes wherein the N-meso substituent comprises electron withdrawing groups and wherein such N-meso substituents are introduced at the intermediate level. These intermediates enable the formation of dyes having in the meso-position N-substituents comprising electron withdrawing groups without the need for further derivatization of the meso-substituent at the dye level.
[EN] AZACYANINE DYES AND USE THEREOF<br/>[FR] COLORANTS D'AZACYANINE ET LEUR UTILISATION
申请人:ECOLE POLYTECHNIQUE FED LAUSANNE EPFL
公开号:WO2019180475A1
公开(公告)日:2019-09-26
The application provides fluorescent dyes, which are cyanine dyes that incorporate additional aza moieties in the indolenium heterocycles and/or in the methine chains connecting them. Symmetrical and unsymmetrical chemically reactive azacyanine dyes are described for conjugation, as well as their bioconjugates for in-vitro and in-vivo assays and fluorescence imaging.
[EN] DYE COMPOSITION COMPRISING AT LEAST ONE COLORLESS DISULFIDE/THIOL PRECURSOR, AND DYEING PROCESS USING THE COMPOSITION<br/>[FR] COMPOSITION COLORANTE COMPRENANT AU MOINS UN PRÉCURSEUR DE DISULFURE/THIOL INCOLORE ET PROCÉDÉ DE TEINTURE UTILISANT LA COMPOSITION
申请人:OREAL
公开号:WO2009040354A1
公开(公告)日:2009-04-02
The present invention relates to the dyeing of keratin materials using two colorless dye precursors, at least one of which contains a disulfide/thiol unit, said precursors reacting together chemically to form the color in situ. The process according to the invention makes it possible in the context of certain variants to solve the problems caused by the color generated during the process, while at the same time not degrading the efficacy of the coloration, and especially of the lightening effect. The colorations obtained are moreover powerful, chromatic, sparingly selective, and fast with respect to external agents such as sunlight, perspiration and especially shampoo.
[EN] PROCESS FOR DYE PRODUCTION<br/>[FR] PROCÉDÉ POUR LA PRODUCTION DE COLORANT
申请人:UNIV CENTRAL LANCASHIRE
公开号:WO2013114115A1
公开(公告)日:2013-08-08
The present invention relates to a process for the production of certain compounds, especially dye compounds defined in general by Formula I: The invention provides a one-step method in which a compound of Formula II or a reactive intermediate derived in situ therefrom is reacted in situ with a compound of Formula III (optionally in the presence of a compound of Formula IV) to produce compounds of Formula I in excellent yield, and in a manner which avoids undesirable by- product formation.