Hair color compositions comprising stable violet-blue to blue imidazolium dyes

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United States of America Patent

PATENT NO 9982138
SERIAL NO

15263934

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Abstract

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Disclosed are hair color compositions comprising novel stable violet-blue to blue imidazolium azo compounds that have a simplified chromophore and high relative solubility in aqueous systems, and that are surprisingly stable under the conditions of use and storage. These compositions are useful for dyeing fibers such as hair and other keratinaceous materials. The compositions can optionally include an oxidant.

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Patent Owner(s)

Patent OwnerAddress
WELLA OPERATIONS US LLC4500 PARK GRANADA SUITE 100 CALABASAS CA 91302

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murphy, Bryan Patrick Loveland, US 73 701
Zhang, Guiru Lebanon, US 40 279
Zhao, Jielu Mason, US 6 8

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