# US 11,439,580 B2 · Epilatory compositions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,580 B2 - Document ID: US11439580B2 - Status: Granted - Kind: B2 - Application number: 17/075,758 - Filed: 2020-10-21 - Published: 2021-03-11 - Granted: 2022-09-13 - Earliest claimed: 2015-03-23 - Assignees: Reckitt Benckiser Health Limited - Applicants: Reckitt Benckiser Health Limited - Inventors: Terry Alan Cass; Victoria Mary Morris-Curtis; Alice Heather Pope - Web page: https://patentgrep.com/patent/US11439580B2 ## CPC - A61K 8/8117: {Homopolymers or copolymers of aromatic olefines, e.g. polystyrene; Compositions of derivatives of such polymers} - A61K 8/25: Silicon; Compounds thereof - A61K 8/31: Hydrocarbons - A61K 8/8111: {Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers} - A61K 8/92: Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof - A61Q 9/04: Depilatories - 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 invention provides an epilatory composition comprising an admixture of a hydrocarbon resin material and a mineral oil in weight ratio of 1.3:1 to 2.8:1, particulate silica, and, a polyethylene in the form of a homopolymer. An advantage of the compositions of the present invention is that they are able to provide good ‘grip’ to the hair to be removed and so provide for effective hair removal properties. ## Claims ### Claim 1 An epilatory composition comprising: 63-66 wt % of a hydrogenated styrene/methyl styrene/indene copolymer; 31-33 wt % of a mineral oil; 1-2 wt % of particulate silica; and 0.75-1.5 wt % of a polyethylene in the form of a linear homopolymer. ### Claim 2 An epilatory composition comprising: 63-66 wt % of a hydrogenated styrene/methyl styrene/indene copolymer; 32-34 wt % of a mineral oil; 1-2 wt % of particulate silica; and 0.7-1.5 wt % of a polyethylene in the form of a linear homopolymer. ### Claim 3 An epilatory composition comprising: 63-66 wt % of a hydrogenated styrene/methyl styrene/indene copolymer; 31-33 wt % of a mineral oil; 1-2 wt % of particulate silica; and 0.8-1.2 wt % of a polyethylene in the form of a linear homopolymer. ### Claim 4 (depends on 1) The epilatory composition as claimed in claim 1, wherein the polyethylene has a molecular weight from 100 to 1000 unified mass units. ### Claim 5 (depends on 2) The epilatory composition as claimed in claim 2, wherein the polyethylene has a molecular weight from 100 to 1000 unified mass units. ### Claim 6 (depends on 3) The epilatory composition as claimed in claim 3, wherein the polyethylene has a molecular weight from 100 to 1000 unified mass units. ### Claim 7 (depends on 1) The epilatory composition as claimed in claim 1, wherein the hydrogenated styrene/methyl styrene/indene copolymer is present in an amount of about 63% to about 64% by weight of the composition. ### Claim 8 (depends on 2) The epilatory composition as claimed in claim 2, wherein the hydrogenated styrene/methyl styrene/indene copolymer is present in an amount of about 63% to about 64% by weight of the composition. ### Claim 9 (depends on 3) The epilatory composition as claimed in claim 3, wherein the hydrogenated styrene/methyl styrene/indene copolymer is present in an amount of about 63% to about 64% by weight of the composition. ### Claim 10 (depends on 1) The epilatory composition as claimed in claim 1, wherein the mineral oil is present in an amount of about 32% to about 33% by weight of the composition. ### Claim 11 (depends on 2) The epilatory composition as claimed in claim 2, wherein the mineral oil is present in an amount of about 32% to about 33% by weight of the composition. ### Claim 12 (depends on 3) The epilatory composition as claimed in claim 3, wherein the mineral oil is present in an amount of about 32% to about 33% by weight of the composition. ### Claim 13 (depends on 1) The epilatory composition as claimed in claim 1, wherein the particulate silica is present in an amount of about 2.0% by weight of the composition. ### Claim 14 (depends on 2) The epilatory composition as claimed in claim 2, wherein the particulate silica is present in an amount of about 2.0% by weight of the composition. ### Claim 15 (depends on 3) The epilatory composition as claimed in claim 3, wherein the particulate silica is present in an amount of about 2.0% by weight of the composition. ### Claim 16 (depends on 1) The epilatory composition as claimed in claim 1, wherein the mineral oil is a paraffin oil. ### Claim 17 (depends on 2) The epilatory composition as claimed in claim 2, wherein the mineral oil is a paraffin oil. ### Claim 18 (depends on 3) The epilatory composition as claimed in claim 3, wherein the mineral oil is a paraffin oil. ### Claim 19 (depends on 1) The epilatory composition as claimed in claim 1, wherein the polyethylene is present in an amount of about 1.0% by weight of the composition. ### Claim 20 (depends on 2) The epilatory composition as claimed in claim 2, wherein the polyethylene is present in an amount of about 1.0% by weight of the composition.