# US 2010/0299847 A1 · Method and kit for modifying the coloration of keratinous fibres

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- Number: US 2010/0299847 A1
- Document ID: US20100299847A1
- Status: Published application
- Kind: A1
- Application number: 12/856,153
- Filed: 2010-08-13
- Published: 2010-12-02
- Earliest claimed: 2004-09-09
- Assignees: 6569048 Canada Inc.
- Inventors: Moty COHEN; Dulce Cristina Almeida Da Silva
- Web page: https://patentgrep.com/patent/US20100299847A1

## CPC

- A61K 8/46: containing sulfur (A61K8/44 takes precedence)
- A61K 8/19: containing inorganic ingredients
- A61K 8/22: Peroxides; Oxygen; Ozone
- A61K 8/24: Phosphorous; Compounds thereof
- A61K 8/361: {Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof}
- A61Q 5/08: Preparations for bleaching the hair
- A61Q 5/10: Preparations for permanently dyeing the hair
- A61K 2800/4324: in preparations for permanently dyeing the hair
- A61K 2800/882: Mixing prior to application
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

A method for permanently modifying a color of keratinous fibres which comprises the steps of: first providing a mixture of three compositions A, B and C, wherein said composition A comprises at least a reducing agent and optionally a coloring compound, said composition B comprises at least an alkalizing compound and said composition C comprises at least an oxidizing compound; applying said mixture to keratinous fibres for a suitable period of time for modifying the color of said keratinous fibres; and removing said mixture from said keratinous fibres.

## Claims

### Claim 1

A method for personalizing the permanent modification of a color of a type of keratinous fibres of a person comprising the steps of:
a) selecting a color modification desired by the person;
b) selecting a composition A according to the color modification selected in step a), wherein said composition A comprises from about 0.01% to about 10% of a reducing agent and from 0% to about 10% of a coloring compound, by weight of composition A;
c) determining a type of keratinous fibres to be colored;
d) selecting a composition B comprising an alkalizing compound, wherein composition B has a level of basicity selected according to the type of keratinous fibres selected in step c) and the type of color modification selected in step a);
e) selecting a composition C comprising from about 1.5% to about 12% of an oxidizing compound by weight of composition C, wherein the amount of oxidizing compound is selected according to the type of color modification selected in step a) and the type of keratinous fibres selected in step c);
f) mixing said compositions A, B and C to obtain a mixture, said mixture providing heat generated by an exothermic chemical reaction which provides a temperature that increases progressively from room temperature (RT) to a temperature ranging from about RT +3° C. to about RT +20° C.;
g) applying said mixture to keratinous fibres immediately after the mixing of compositions A, B and C, for a suitable period of time for obtaining the color modification selected in step a;
h) removing said mixture from said keratinous fibres.

### Claim 2 (depends on 1)

The method of claim 1, wherein said reducing agent consists in a thio compound.

### Claim 3 (depends on 1)

The method of claim 1, wherein said reducing agent is selected from the group consisting of cysteamine HLC, ammonium thioglycolate and ammonium thiolactate.

### Claim 4 (depends on 1)

The method of claim 1, wherein said coloring compound is selected from the group consisting of dye intermediates, direct dyes and mixtures thereof.

### Claim 5 (depends on 1)

The method of claim 1, wherein said level of basicity of composition B consists of a mild level of basicity.

### Claim 6 (depends on 5)

The method of claim 5, wherein said mild level of basicity corresponds to about 5.0% of alkalizing compound by weight of composition B.

### Claim 7 (depends on 1)

The method of claim 1, wherein said level of basicity of composition B consists of a regular level of basicity.

### Claim 8 (depends on 7)

The method of claim 7, wherein said regular level of basicity corresponds to about 6.0% of alkalizing compound by weight of composition B.

### Claim 9 (depends on 1)

The method of claim 1, wherein said level of basicity of composition B consists of a strong level of basicity.

### Claim 10 (depends on 9)

The method of claim 9, wherein said strong level of basicity corresponds to about 7.0% of alkalizing compound by weight of composition B.

### Claim 11 (depends on 1)

The method of claim 1, wherein said alkalizing compound is selected from the group consisting of ammonium hydroxide, monoisopropanol amine, monoethanolamine, aminoethylpropanol, potassium hydroxide, sodium hydroxide and mixtures thereof.

### Claim 12 (depends on 1)

The method of claim 1, wherein said oxidizing compound is an inorganic oxidizing compound selected from the group consisting of hydrogen peroxide, inorganic alkali metal peroxide compounds, inorganic perhydrate salt oxidizing compounds, melanine peroxide, sodium perborate and sodium percarbonate.

### Claim 13 (depends on 1)

The method of claim 1, wherein said compositions A, B and C are mixed according to a ratio of about 1:1:2 by weight of the mixture.

### Claim 14

A kit for personalizing the permanent modification of a color of a type of keratinous fibres of a person, the kit comprising:
a first container containing a composition A, said composition A comprising from about 0.01% to about 10% of a reducing agent and from 0 to 10% of a coloring compound by weight of composition A,
a second container containing a composition B, said composition B comprising an alkalizing compound, wherein composition B has a level of basicity selected from mild, regular and strong, and
a third container containing a composition C, said composition C comprising from about 1.5% to about 12% of an oxidizing compound by weight of composition C.

### Claim 15 (depends on 14)

The kit of claim 14, wherein said reducing agent consists in a thio compound.

### Claim 16 (depends on 14)

The kit of claim 14, wherein said reducing agent is selected from the group consisting of cysteamine HLC, ammonium thioglycolate and ammonium thiolactate.

### Claim 17 (depends on 14)

The kit of claim 14, wherein said coloring compound is selected from the group consisting of dye intermediates, direct dyes and mixtures thereof.

### Claim 18 (depends on 14)

The kit of claim 14, wherein said mild level of basicity corresponds to about 5.0% of alkalizing compound by weight of composition B.

### Claim 19 (depends on 14)

The kit of claim 14, wherein said regular level of basicity corresponds to about 6.0% of alkalizing compound by weight of composition B.

### Claim 20 (depends on 14)

The kit of claim 14, wherein said strong level of basicity corresponds to about 7.0% of alkalizing compound by weight of composition B.

### Claim 21 (depends on 14)

The kit of claim 14, wherein said alkalizing compound is selected from the group consisting of ammonium hydroxide, monoisopropanol amine, monoethanolamine, aminoethylpropanol, potassium hydroxide, sodium hydroxide and mixtures thereof.

### Claim 22 (depends on 14)

The kit of claim 14, wherein said oxidizing compound is an inorganic oxidizing compound selected from the group consisting of hydrogen peroxide, inorganic alkali metal peroxide compounds, inorganic perhydrate salt oxidizing compounds, melanine peroxide, sodium perborate and sodium percarbonate.