The Procter Gamble Company

Wella Aktiengesellschaft

Noxell Corporation

Wella Operations Us, LLC

Wella International Operations Switzerland Sarl

Markus Speckbacher

Hans-Jürgen Braun

Armin Osan

Hans-Juergen Braun

Ingo Weber

Cécile Pasquier

Eric Tinguely

Ingo Reinhold Weber

Annik Marguet

Heike Gertrud Abel

Garry Steven Garrett

Wolfram Geibel

Jessica Chassot

Bryan Patrick Murphy

Mathias Kurt Herrlein

John Michael Gardlik

Simon Paul Godfrey

Lars Siegfried Dahne

Mandy Hecht

Matija Crne

Graham Neil Mckelvey

Jan Baumeister

Lars Dähne

The instant disclosure generally relates to a dual component hair coloring composition for coloring mammalian or synthetic keratin fibers, the composition comprising composition A comprising a cationic polymer, pigment microparticles and an aqueous medium, and comprising composition B comprising an anionic polymer, aqueous medium and optional cross linking agent. Optionally or alternatively composition B may contain pigment particles. The cationic and anionic polymers are at least partially soluble in the medium and the pigment microparticles are dispersed therein. The hair coloring composition forms a dual layer coating upon application to keratin fibers such as hair and has a substantially permanent pigment lastingness following development (setting); minimally alters the keratin fibers, upon application; and substantially eliminates development time. Methods of using such compositions are also described herein.

Dual polymer component hair coloring composition

A method for treating hair comprising applying at least one pigment onto hair for providing the basis for colouring hair in a more reproducible and reliable manner independently from a user's initial hair colour.

Hair treatment method and kit thereof

A process for the preparation of 2-substituted-1,4-benzenediamines, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely the 2-substituted aniline.

Process for the preparation of 2-substituted-1,4-benzenediamines and salts thereof

A telescoping process for the preparation of 2-methoxymethyl-p-phenylenediamine, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely 2-methoxymethylaniline.

Telescoping synthesis of 2-methoxymethyl-p-phenylenediamine

A telescoping process for the preparation of 2-methoxymethyl-p-phenylenediamine, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely 2-hydroxymethylaniline.

Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine

A compound of formula (I) or (II) or (III): wherein R, R, R, R', R&#x2033; and R&#x2033;&#x2032; are as defined herein. This compound can be used in a composition for the dyeing of fibers.

Azo direct dyes and method for dyeing hair using these dyes

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. 

[object Object]

1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions

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.

Telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt

Dark coloured azo dyes

The present invention relates to agents for coloring keratin fibers which comprise at least one cationic azodye of the general formula (I). 

Agents for coloring keratin fibers

Coloring agents for keratin fibers

The present invention has for an object brightening cationic naphthalene dyes of formula (I) and colorants for keratin fibers, particularly human hair, containing these compounds 

Brightening direct dyes for keratin fibers and colorants containing these compounds

The present invention has for an object novel naphthalene dyes of formula (I) and colorants for keratin fibers, particularly human hair, containing these compounds. 

Growing community of inventors

Aschaffenburg, Germany

Markus Speckbacher