# US 11,298,303 B2 · System for thickening a dye preparation containing percarbonate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,303 B2 - Document ID: US11298303B2 - Status: Granted - Kind: B2 - Application number: 16/719,734 - Filed: 2019-12-18 - Published: 2020-07-02 - Granted: 2022-04-12 - Earliest claimed: 2018-12-28 - Assignees: Henkel AG & Co. KGaA - Applicants: Henkel AG & Co. KGaA - Inventors: Udo Erkens; Torsten Lechner; Carsten Mathiaszyk - Web page: https://patentgrep.com/patent/US11298303B2 ## CPC - A61K 8/19: containing inorganic ingredients - A61K 8/11: Encapsulated compositions - A61K 8/22: Peroxides; Oxygen; Ozone - A61K 8/25: Silicon; Compounds thereof - A61K 8/347: {Phenols} - A61K 8/411: {Aromatic amines, i.e. where the amino group is directly linked to the aromatic nucleus} - A61K 8/415: {Aminophenols} - A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate} - A61K 8/73: Polysaccharides - A61K 8/731: {Cellulose; Quaternized cellulose derivatives} - A61K 8/737: {Galactomannans, e.g. guar; Derivatives thereof} - A61K 8/8129: {Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers or esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers, e.g. polyvinylmethylether} - A61Q 5/10: Preparations for permanently dyeing the hair - A61K 2800/48: Thickener, Thickening system - A61K 2800/5922: At least two compounds being classified in the same subclass of A61K8/18 - A61K 2800/87: Application Devices; Containers; Packaging - A61K 2800/882: Mixing prior to application - A61Q 5/08: Preparations for bleaching the hair - 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 The present falls within the field of cosmetics and relates to a cosmetic product for oxidatively changing the colour of keratinous fibres, particularly human hair. An exemplary cosmetic product includes (i) at least one cosmetic composition (KM) comprising (a) at least one oxidising compound, and (b) two or more thickening agents, and (ii) at least one cosmetic dye composition (FZ). The oxidising compound is a solid oxidising agent and is selected from the group of a percarbonate salt, a perborate salt and percarbamide salt. Further, the two or more thickening agents comprise an at least partially ionic polysaccharide and a substantially non-ionic polysaccharide. Also described is a method for dyeing hair. ## Claims ### Claim 1 A cosmetic product for changing the natural colour of keratinous fibres, comprising (i) at least one cosmetic composition (KM) comprising: a) at least one oxidising compound comprising percarbonate salt present in an amount of from about 6 to about 25 wt %, and b) two or more thickening agents consisting of a mixture of a cellulose gum, a hydroxyethylcellulose and a xanthan gum, and (ii) at least one cosmetic dye composition (FZ), wherein the cosmetic product further comprises a packaging product, wherein the cosmetic composition (KM) is included in a first compartment of the packaging product and the cosmetic dye composition (FZ) is included in a second compartment of the packaging product, or the cosmetic composition (KM) and the cosmetic dye composition (FZ) are included together in one compartment of the packaging product, wherein the packaging includes a water-soluble film, wherein the water-soluble film is a film based on polyvinyl alcohol (PVOH), wherein the polyvinyl alcohol has a deacetylation degree of 85% and more and/or wherein the polyvinyl alcohol has a weight-average molecular weight Mw from about 70,000 g/mol to about 120,000 g/mol, measured by GPC chromatography in water with a polydispersity index from 3.1 to 4.5. ### Claim 2 (depends on 1) The cosmetic product according to claim 1, wherein the two or more thickening agents are included in the cosmetic product in a total quantity from 1 to 25 wt %, relative to the total weight of the cosmetic product. ### Claim 3 (depends on 1) The cosmetic product according to claim 1, wherein the quantity of cellulose gum constitutes from 0.2 to 10 wt % and the quantity of hydroxyethylcellulose constitutes from 0.2 to 10 wt %, relative to the total weight of the cosmetic product in each case. ### Claim 4 (depends on 1) The cosmetic product according to claim 1, wherein the cosmetic dye composition (FZ) comprises p-Toluenediaminesulfate, Hydroxyethyl-p-phenylenediamine, m-Aminophenol and Resorcinol. ### Claim 5 (depends on 1) The cosmetic product according to claim 1, wherein the cosmetic comprises no free hydrogen peroxide. ### Claim 6 (depends on 1) The cosmetic product according to claim 1, further comprising at least one inorganic alkalising agent which is solid at 20° C. and 105 Pa including at least one sodium silicate or sodium metasilicate with a molar SiO2/Na2O ratio of ≥2. ### Claim 7 (depends on 1) A method for colouring keratinous fibres, the method comprising: mixing a cosmetic product according to claim 1 with water to form a mixture, applying the mixture to the keratinous fibres immediately thereafter, leaving the mixture on the keratinous fibres for 5 to 60 minutes, and rinsing the keratinous fibres with water and optionally washing the keratinous fibres with a tenside-containing cleaning agent. ### Claim 8 (depends on 1) The cosmetic product of claim 1, wherein the cellulose gum is present in an amount of from about 0.2 to about 10 wt %, the hydroxyethylcellulose is present in an amount of from about 0.2 to about 10 wt %, and the xanthan gum is present in an amount of from about 0.1 to about 5 wt %, relative to the total weight of the cosmetic product in each case. ### Claim 9 (depends on 8) The cosmetic product of claim 8, wherein the cellulose gum is present in an amount of from about 0.5 to about 3 wt %, the hydroxyethylcellulose is present in an amount of from about 0.5 to about 3 wt %, and the xanthan gum is present in an amount of from about 0.5 to about 2 wt %, relative to the total weight of the cosmetic product in each case. ### Claim 10 (depends on 8) The cosmetic agent of claim 8, wherein the total amount of thickening agents in the cosmetic product is from about 3 to about 8 wt %, based on the total weight of the cosmetic product.