# US 11,298,308 B1 · Hair bleaching compositions and methods of use

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- Number: US 11,298,308 B1
- Document ID: US11298308B1
- Status: Granted
- Kind: B1
- Application number: 17/320,150
- Filed: 2021-05-13
- Granted: 2022-04-12
- Earliest claimed: 2021-05-13
- Assignees: ELC Management LLC
- Applicants: ELC Management LLC
- Inventors: Daniel Thomas Nowlan, III
- Web page: https://patentgrep.com/patent/US11298308B1

## CPC

- A61K 8/602: {Glycosides, e.g. rutin}
- A61K 8/23: Sulfur; Selenium; Tellurium; Compounds thereof
- A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
- A61K 8/4913: {having five membered rings, e.g. pyrrolidone carboxylic acid}
- A61Q 5/08: Preparations for bleaching 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

Hair bleaching compositions, methods for using hair bleaching compositions, and methods for preparing hair bleaching compositions are provided herein. The hair bleaching compositions comprise at least one gallic acid derivative, at least one amino acid and/or at least one amino acid derivative, at least one oxidizing agent, and optionally, at least one hair care agent and/or hair treatment agent.

## Claims

### Claim 1

A method for bleaching hair, comprising:
a) mixing a bleaching composition with a developer composition;
b) applying the mixture of the step (a) onto hair and allowing the mixture to remain for no more than two hours;
c) rinsing the mixture of the step (a) from hair;
wherein the bleaching composition comprising at least one gallic acid derivative; at least one amino acids and/or at least one amino acid derivative; at least one oxidizing agent; and optionally, at least one hair care and/or hair treatment agent.

### Claim 2 (depends on 1)

The method for bleaching hair of claim 1, wherein the at least one gallic acid derivative has the following formula (I),
wherein R1 represents a hydrogen atom, an alkali metal, an alkaline earth metal, an ammonium salt, or an alkyl or alkenyl group having from 1 to 18 carbon atoms; and
wherein R2, R3, and R4 independently represent a hydrogen atom, an hydroxyl group, an alkoxy group having from 1 to 18 carbon atoms, a polyoxyethylene group, a polyoxypropylene group, or a residue of a monosaccharide, a disaccharide or an oligosaccharide.

### Claim 3 (depends on 1)

The method for bleaching hair of claim 1, wherein at least one gallic acid derivative comprises the gallic acid derivative selected from gallic acid-3, 5-diglucoside; gallic acid-3, 4-diglucoside; methyl gallate-3,5-diglucoside; ethyl gallate-3,5-diglucoside; propyl gallate-3,5-diglucoside; butyl gallate-3,5-diglucoside; gallic acid-3,5-dimannoside; sodium gallate-3,5-diglucoside; ammonium gallate-3,5-diglucoside, gallic acid-3-glucoside, methyl galate-3-glucoside, ethyl galate-3-glucoside, propyl galate-3-glucoside, gallic acid-4-glucoside, sodium gallic acid-3-glucoside, ammonium gallic acid-4-glucoside, gallic acid-3-mannoside, gallic acid-4-mannoside, methyl galate-4-mannoside, and mixtures thereof.

### Claim 4 (depends on 1)

The method for bleaching hair of claim 1, wherein the at least one gallic acid derivative comprises diglucosyl gallic acid.

### Claim 5 (depends on 1)

The method for bleaching hair of claim 1, wherein the at least one gallic acid derivative is present from 0.0001% to 10%, based on the total weight of the hair bleaching hair.

### Claim 6 (depends on 1)

The method for bleaching hair of claim 1, wherein the at least one amino acid and/or at least one amino acid derivative is present from 0.01% to 10% based on the total weight of the hair bleaching hair.

### Claim 7 (depends on 1)

The method for bleaching hair of claim 1, wherein the at least one oxidizing agent is selected from the group consisting of persulfate salts, percarbonate salts, and mixtures thereof.

### Claim 8 (depends on 7)

The method for bleaching hair of claim 7, wherein the at least one oxidizing agent is selected from the group consisting of sodium persulfate, potassium persulfate, ammonium persulfate, and mixtures thereof.

### Claim 9 (depends on 8)

The method for bleaching hair of claim 8, wherein the persulfate load of the hair bleaching hair is from about 1% to about 85% based on the total weight of the hair bleaching hair.