Multicomponent composition

US11478415B2 · kind B2 · utility

Assignee

• WELLA INTERNATIONAL OPERATIONS SWITZERLAND SARL · CH

Inventors

• Mathias Kurt Herrlein · Kronberg, DE
• Graham Neil McKelvey · Schwalbach, DE
• Matija Crne · Wiesbaden, DE
• Corinne Mohr · Darmstadt, DE
• Simon Paul Godfrey · Uxbridge, GB
• Galina Gross · Darmstadt, DE
• Tatjana Schaefer · Schwalbach, DE
• Axel Meyer · Frankfurt am Main, DE

Key dates

• Filing date: Mar 27, 2019
• Grant date: Oct 25, 2022
• Expiry date: Mar 27, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/95
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The instant disclosure generally relates to a multicomponent composition for coloring mammalian or synthetic keratin fibers, the multicomponent composition comprising first, second, third and fourth components. The first component includes an organic polymer, the second component includes an in situ linking material, the third component includes a base compound and the fourth component includes a catalyst or other substance. One or more of the components includes pigment microparticles. The multicomponent composition in situ links upon application, forms a solid coating on treated material such as hair and has a substantially long color remanence following development. Methods of using such compositions are also described herein.