Oxidative dyeing agent for keratin fibers comprising novel dye precursor combinations

US12097274B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12097274-B2
Application numberUS-202318111247-A
CountryUS
Kind codeB2
Filing dateFeb 17, 2023
Priority dateFeb 25, 2022
Publication dateSep 24, 2024
Grant dateSep 24, 2024

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole.

First claim

Opening claim text (preview).

The invention claimed is: 1. An agent for the oxidative dyeing of keratinous fibers, comprising which contains (A) the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol and/or at least one of its physiologically tolerated salts, and (B) the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or at least one of its physiologically tolerated salts, wherein the agent is substantially free of any resorcinol compound of structure (I) in which X means a hydrogen atom or a C1-C10 alkyl group, wherein the agent is further substantially free of any fluorinated compounds and wherein the agent is further substantially free of dissolved hydrogen peroxide. 2. The agent according to claim 1 , wherein the oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol and/or at least one of its physiologically tolerated salts comprises 0.01 wt % to 5.0 wt % based on the total weight of the agent. 3. The agent according to claim 1 , wherein the oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol and/or at least one of its physiologically tolerated salts comprises 0.03 wt % to 3.0 wt % based on the total weight of the agent. 4. The agent according to claim 1 , wherein the oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol and/or at least one of its physiologically tolerated salts comprises 0.05 wt % to 1.5 wt % based on the total weight of the agent. 5. The agent according to claim 1 , wherein the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or at least one of its physiologically tolerated salts comprises 0.01 wt % to 5.0 wt % based on the total weight of the agent. 6. The agent according to claim 1 , wherein the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or at least one of its physiologically tolerated salts comprises 0.05 wt % to 1.5 wt % based on the total weight of the agent. 7. The agent according to claim 1 , wherein the oxidation base 5-diamino-1-(2-hydroxyethyl)-1H-pyrazole or at least one of its physiologically tolerated salts (B) and 2-(1,3-benzodioxol-5-ylamino)ethanol or at least one of its physiologically tolerated salts (A) are present in the agent at a molar ratio (B)/(A) of 0.2 to 4.5. 8. The agent according to claim 1 , wherein the oxidation base 5-diamino-1-(2-hydroxyethyl)-1H-pyrazole or at least one of its physiologically tolerated salts (B) and 2-(1,3-benzodioxol-5-ylamino)ethanol or at least one of its physiologically tolerated salts (A) are present in the agent at a molar ratio (B)/(A) of 0.3 to 2.0. 9. The agent according to claim 1 , wherein the oxidation base 5-diamino-1-(2-hydroxyethyl)-1H-pyrazole or at least one of its physiologically tolerated salts (B) and 2-(1,3-benzodioxol-5-ylamino)ethanol or at least one of its physiologically tolerated salts (A) are present in the agent at a molar ratio (B)/(A) of 0.35 to 0.7. 10. The agent according to claim 1 , wherein the agent comprises at least one additional coupling oxidation dye precursor and/or at least one of its physiologically tolerated salts in a total amount of 0.001 wt % to 5.0 wt % based on the total weight of the agent. 11. The agent according to claim 1 , wherein the agent comprises at least one additional coupling oxidation dye precursor and/or at least one of its physiologically tolerated salts in a total amount of 0.05 wt % to 1.5 wt % based on the total weight of the agent. 12. The agent according to claim 11 , wherein the at least one additional coupling oxidation dye precursor is selected from the group consisting of: 3-aminophenol, 5-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol, 2-hydroxy-4-aminophenoxyethanol, 5-amino-4-chloro-2-methylphenol, 5-(2-hydroxyethyl)-amino-2-methylphenol, 2,4-dichloro-3-aminophenol, 2-aminophenol, 1,3-phenylenediamine, 2-(2,4-diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene, 1,3-bis(2,4-diaminophenoxy)propane, 1,3-bis(2,4-diaminophenyl)propane, 2,6-bis-(2′-hydroxyethylamino)-1-methylbenzene, 2-({3-[(2-hydroxyethyl)amino]-4-methoxy-5-methylphenyl}amino)ethanol, 2-({3-[(2-hydroxyethyl)amino]-2-methoxy-5-methylphenyl}amino)ethanol, 2-({3-[(2-hydroxyethyl)amino]-4,5-dimethylphenyl}amino)ethanol, 3-amino-4-(2-methoxyethoxy)-5-methylphenylamine, 1-amino-3-bis-(2-hydroxyethyl)aminobenzene, 2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 2,6-dihydroxy-3,4-dimethylpyridine, 3,5-diamino-2,6-dimethoxypyridine, 1-phenyl-3-methylpyrazol-5-one, 1-naphthol, 1,5-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 1,8-dihydroxynaphthalene, 4-chlororesorcinol, 4-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 4-hydroxyindoline, 6-hydroxyindoline and/or 7-hydroxyindoline, their physiologically tolerated salts, and mixtures of the aforementioned substances. 13. The agent according to claim 11 , wherein the at least one additional coupling oxidation dye precursor is selected from the group consisting of: 3-aminophenol, 1-naphthol, 2,7-dihydroxynaphthalene, 5-amino-2-methylphenol, 1,3-phenylenediamine, 2-(2,4-diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene, 1,3-bis(2,4-diaminophenoxy)propane, 2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 1-phenyl-3-methylpyrazol-5-one, their physiologically tolerated salts, and mixtures of the aforementioned substances. 14. The agent according to claim 1 , wherein the agent comprises at least one additional oxidation base and/or at least one of its physiologically tolerated salts in a total amount of 0.001 wt % to 5.0 wt % based on the total weight of the agent. 15. The agent according to claim 1 , wherein the agent comprises at least one additional oxidation base and/or at least one of its physiologically tolerated salts in a total amount of 0.05 wt % to 1.5 wt % based on the total weight of the agent. 16. The agent according to claim 15 , wherein the at least one additional oxidation base is selected from 2-methoxymethyl-para-phenylenediamine, 2-(2,5-diaminophenyl)ethanol, toluene-2,5-diamine, N,N-bis-(2-hydroxyethyl)-p-phenylenediamine, 4-amino-3-methylphenol, 4-aminophenol, p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, N,N′-bis-(2-hydroxyethyl)-N,N′-bis-(4-aminophenyl)-1,3-diamino-propane-2-ol, bis-(2-hydroxy-5-aminophenyl)methane, 1,3-bis-(2,5-diaminophenoxy)propane-2-ol, N,N′-bis-(4-aminophenyl)-1,4-diazacycloheptane, 1,10-bis-(2,5-diaminophenyl)-1,4,7,10-tetraoxadecane, 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triamino-pyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo-[1,2-a]-pyrazole-1-one, their physiologically tolerated salts, and mixtures of the aforementioned substances. 17. The agent according to claim 1 , wherein the agent further comprises polyquaternium-53, in an amount of 0.01 wt % to about 3 wt % based on the total weight of the agent. 18. The agent according to claim 1 , wherein the agent further comprises polyquaternium-53, in an amount of 0.04 wt % to about 0.5 wt % based on the total weight of the agent. 19. A multicomponent kit-of-parts for oxidative dyeing of keratinous fibers, comprising at least two separately packaged components (C1) and (C2), wherein the first component (C1) is substantially free of dissolved hydrogen peroxide, and comprises (A) the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol and/or at least one of its physiologically tolerated salts, and (B) the oxidation base 4,5-di

Assignees

Inventors

Classifications

  • containing more than one hydroxy group · CPC title

  • Characterized by the absence of a particular group of ingredients · CPC title

  • Peroxides; Oxygen; Ozone · CPC title

  • Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers · CPC title

  • Aromatic amines, i.e. where the amino group is directly linked to the aromatic nucleus · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12097274B2 cover?
The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole.
Who is the assignee on this patent?
Henkel Ag & Co Kgaa
What technology area does this patent fall under?
Primary CPC classification A61Q5/10. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Sep 24 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).