US 2022/0016007 A1 · Azomethine Dye Chromophores

Abstract

A composition for dyeing keratin fibres comprising a. at least one azomethine compound selected from compounds (3) and (4) and b. water. The composition may be used in a process for dyeing keratin fibres or, with simultaneous or sequential application of a composition comprising one or more oxidising agents, in a process for lightening keratin fibres.

Claims11

Dependent claims

A composition for dyeing keratin fibers comprising

a. at least one azomethine compound selected from
and
b. water.

Dependencies are inferred from the claim text.

Facts

Application

17/294,715Filed 21 Nov 2019

Priority

EP 18207425.221 Nov 2018

Published

20 Jan 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61K 8/494
Containing heterocyclic compounds: with more than one nitrogen as the only hetero atom
A61K 8/365
Carboxylic acids; Salts or anhydrides thereof: hydroxycarboxylic acids; Ketocarboxylic acids
A61K 8/41
Containing nitrogen: amines
A61Q 5/065
Preparations for styling the hair, e.g. by temporary shaping or colouring: preparations for temporary colouring the hair, e.g. direct dyes

Abstract

Claims11

Dependent claims

A composition for dyeing keratin fibers comprising

a. at least one azomethine compound selected from
and
b. water.

Dependencies are inferred from the claim text.

Azomethine Dye Chromophores

Life of this patent

Abstract

Claims11

Azomethine Dye Chromophores

Life of this patent

Abstract

Claims11