# US 9,872,819 B2 · Solid stick antiperspirant compositions having non-volatile silicones > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,872,819 B2 - Document ID: US9872819B2 - Status: Granted - Kind: B2 - Application number: 14/793,121 - Filed: 2015-07-07 - Published: 2017-01-12 - Granted: 2018-01-23 - Earliest claimed: 2015-07-07 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: Elton Luis Menon; David Frederick Swaile - Web page: https://patentgrep.com/patent/US9872819B2 ## CPC - A61K 8/26: Aluminium; Compounds thereof - A61K 8/0229: {Sticks} - A61K 8/044: {Suspensions} - A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain} - A61K 8/37: Esters of carboxylic acids - A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone - A61K 8/92: Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof - A61Q 15/00: Anti-perspirants or body deodorants (deodorisation of air A61L9/00) - A61K 2800/20: Chemical, physico-chemical or functional or structural properties of the composition as a whole - A61K 2800/30: Characterized by the absence of a particular group of ingredients - A61K 2800/31: Anhydrous - 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 Solid stick antiperspirant compositions include an antiperspirant active, one or more waxes, and a plurality of liquids. The one or more waxes include a polar wax. The plurality of liquids include about 60% or greater, by weight of the plurality of liquids, of a non-volatile silicone. The solid stick antiperspirant composition is substantially or completely free of volatile silicones. Antiperspirant product containing solid stick antiperspirant compositions are also described herein. ## Claims ### Claim 1 A solid stick antiperspirant composition comprising: a. an antiperspirant active; b. one or more waxes comprising a polar wax; and c. a plurality of liquids comprising a first emollient and a second emollient, wherein the first emollient comprises polydimethylsiloxane, the polydimethylsiloxane having a viscosity of about 2 to about 6 centistokes and being present at about 60% or greater, by weight, of the plurality of liquids and the second emollient is present at about 16% to about 40%, by weight, of the plurality of liquids, and wherein the plurality of liquids are a homogeneous mixture and have an aggregate polarity from about 0.9 MPa1/2 to about 3.4 MPa1/2; d. wherein the solid stick antiperspirant composition is free of volatile silicones; and wherein the second emollient is selected from the group consisting of C12-15 alkyl benzoate, isopropyl myristate, isopropyl palmitate, and octyldodecanol. ### Claim 2 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polydimethylsiloxane has the following formula: M-Dx-M, wherein M is (CH3)3SiO, D is ((CH3)2SiO), and x is from 4 to 11. ### Claim 3 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polydimethylsiloxane comprises a concentration from about 25% to about 50%, by weight of the solid stick antiperspirant composition. ### Claim 4 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the second emollient has a concentration of about 20% or less, by weight of the solid stick antiperspirant composition. ### Claim 5 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the second emollient has a concentration of about 15% or less, by weight of the solid stick antiperspirant composition. ### Claim 6 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polar wax has a concentration from about 10% to about 20%, by weight of the solid stick antiperspirant composition. ### Claim 7 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polar wax comprises a fatty alcohol wax having a carbon chain length from 12 to 40. ### Claim 8 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polar wax has a carbon chain length from 14 to 24. ### Claim 9 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the polar wax comprises a fatty alcohol wax selected from the group consisting of stearyl alcohol, behenyl alcohol, cetyl alcohol, ceryl alcohol, and ceteryl alcohol. ### Claim 10 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the one or more waxes further comprise hydrogenated castor oil or solid triglycerides. ### Claim 11 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the one or more waxes have a concentration from about 5% to about 35%, by weight of the solid stick antiperspirant composition. ### Claim 12 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the one or more waxes have a concentration from about 15% to about 25%, by weight of the solid stick antiperspirant composition. ### Claim 13 (depends on 1) The solid stick antiperspirant composition of claim 1 having a total particulate concentration of about 30% or less, by weight. ### Claim 14 (depends on 1) The solid stick antiperspirant composition of claim 1 being substantially or completely free of a modified starch particulate. ### Claim 15 (depends on 1) The solid stick antiperspirant composition of claim 1 being substantially anhydrous. ### Claim 16 (depends on 1) The solid stick antiperspirant composition of claim 1 exhibiting an average standard deviation of about 5 or less for penetration peak force measurements taken in accordance with the Penetration Test Method as described herein. ### Claim 17 (depends on 1) The solid stick antiperspirant composition of claim 1, wherein the plurality of liquids, when mixed, comprise a light transmittance value of about 85% or greater after 4 hours at about −7° C. ### Claim 18 (depends on 1) The solid antiperspirant composition of claim 1, wherein the plurality of liquids comprise from about 60% to about 75%, by weight of the plurality of liquids, of the polydimethylsiloxane. ### Claim 19 A solid stick antiperspirant composition comprising: a. an antiperspirant active; b. one or more waxes comprising a polar wax; and c. a homogeneous mixture of liquids comprising i. about 60% or more of an emollient, wherein the emollient is polydimethylsiloxane and has a viscosity of about 2 to about 6 centistokes, and ii. about 16% to about 40% of a co-emollient, wherein the co-emollient is C12-15 alkyl benzoate, and iii. an aggregate polarity of about 0.9 MPa1/2 to about 3.4 MPa1/2; and d. wherein the solid stick antiperspirant composition is substantially or completely free of volatile silicones. ### Claim 20 (depends on 19) The solid stick antiperspirant of claim 19, wherein the solid stick antiperspirant is opaque. ### Claim 21 (depends on 20) The solid stick antiperspirant of claim 20, wherein the solid stick antiperspirant is white.