Dual polymer component hair coloring composition

US10973754B2 · kind B2 · utility

Assignee

• WELLA OPERATIONS US, LLC · US

Inventors

• Mathias Kurt Herrlein · Kronberg, DE
• Matija Crne · Wiesbaden, DE
• Simon Paul Godfrey · Uxbridge, GB
• Graham Neil McKelvey · Schwalbach, DE
• Lars Siegfried Dahne · Berlin, DE
• Ingo Weber · Basel, CH
• Markus Speckbacher · Aschaffenburg, DE
• Mandy Hecht · Falkensee, DE

Key dates

• Filing date: Oct 5, 2018
• Grant date: Apr 13, 2021
• Expiry date: Oct 5, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/884
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

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.