# US 11,998,104 B2 · System for dispensing a cosmetic product > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,104 B2 - Document ID: US11998104B2 - Status: Granted - Kind: B2 - Application number: 17/666,714 - Filed: 2022-02-08 - Published: 2022-05-26 - Granted: 2024-06-04 - Earliest claimed: 2016-06-02 - Assignees: L'oreal - Applicants: L'oreal - Inventors: Henri Samain; Franck Giron; Guillaume Kergosien - Web page: https://patentgrep.com/patent/US11998104B2 ## CPC - A45D 40/24: Casings for two or more cosmetics - A45D 34/04: Appliances specially adapted for applying liquid, e.g. using roller or ball - A45D 44/005: {for selecting or displaying personal cosmetic colours or hairstyle} - A61K 8/19: containing inorganic ingredients - A61K 8/25: Silicon; Compounds thereof - A61K 8/29: Titanium; Compounds thereof - A61K 8/345: {containing more than one hydroxy group} - A61K 8/731: {Cellulose; Quaternized cellulose derivatives} - A61K 8/81: obtained by reactions involving only carbon-to-carbon unsaturated bonds - A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) - A61Q 19/00: Preparations for care of the skin - B01F 33/8442: {using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale} - A45D 2034/005: {with a cartridge} - A45D 2044/007: {Devices for determining the condition of hair or skin or for selecting the appropriate cosmetic or hair treatment} - A45D 2200/058: Means for mixing different substances prior to application - A61K 2800/10: General cosmetic use - A61K 2800/48: Thickener, Thickening system - A61K 2800/882: Mixing prior to application - A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING - 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 - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) ## Abstract The invention relates to a system (10) for dispensing a product, comprising a dispenser that can house at least two cartridges, each of which includes a reservoir containing a base product, a first base product comprising at least 0.1 wt.-% particles having a density differential relative to the medium containing same, preferably of at least 0.5 g/cm3, in particular particles having a density greater than or equal to 2 g/cm3, and a thickening agent. The dispenser allows at least two base products to be dispensed in adjustable proportions, the viscosity of the first base product being preferably greater than 2 Pa·s and more preferably greater than or equal to 4 Pa·s. ## Claims ### Claim 1 A system for dispensing a product, comprising a dispenser that receives at least two cartridges that each have a reservoir containing a base product, at least one first base product comprising at least 0.1% by mass of particles exhibiting a difference in density of at least 0.5 g/cm3 with the medium which contains them, the particles having a density greater than or equal to 2 g/cm3, or a density lower than or equal to 0.5 g/cm3, and a thickener, the dispenser making it possible to deliver at least two base products in adjustable proportions, the viscosity of the at least one first base product being greater than 2 Pa·s. ### Claim 2 (depends on 1) The system as claimed in claim 1, wherein the viscosity of the first base product is greater than or equal to 4 Pa·s. ### Claim 3 (depends on 1) The system as claimed in claim 1, wherein the dispenser receives a second cartridge containing a second base product having a viscosity less than that of the first base product. ### Claim 4 (depends on 3) The system as claimed in claim 3, wherein the second base product has a viscosity less than or equal to 1 Pa·s. ### Claim 5 (depends on 1) The system as claimed in claim 1, wherein the density of said particles is greater than or equal to 5 g/cm3. ### Claim 6 (depends on 1) The system as claimed in claim 1, wherein the particles comprise at least one of the materials chosen from the following list: bismuth oxychloride, cerium oxide, chromium oxide, zirconium oxide, iron oxide, titanium oxide, talc, calcium carbonate, silica, boron nitride, tungsten carbide. ### Claim 7 (depends on 1) The system as claimed in claim 1, wherein the second product does not have any particles with a density greater than or equal to 7 g/cm3. ### Claim 8 (depends on 1) The system as claimed in claim 1, which comprises a third cartridge with a third base product. ### Claim 9 (depends on 8) The system as claimed in claim 8, wherein the third base product comprises a thickener identical to or different than at of the first base product. ### Claim 10 (depends on 1) The system as claimed in claim 1, wherein the thickener of the first base product is chosen from saccharide compounds of the rubber type, cellulose-based compounds, synthetic polymers or polymethacrylic acids, or polyurethanes, polyvinyl acetate, polyvinyl alcohol, inverse or direct thick emulsions, combinations of non-aqueous solvents with thickening agents for oil, clays, attapulgite, organochelators compound, proteins, shear-thinning or thixotropic rheology agents. ### Claim 11 (depends on 10) The system as claimed in claim 10, wherein the thickener of the first base product is chosen from saccharide compounds of the rubber type, its mass content being between 0.1% and 5% relative to the total mass of the first base product. ### Claim 12 (depends on 1) The system as claimed in claim 1, wherein the cartridges are received in a removable manner in the dispenser. ### Claim 13 (depends on 1) The system as claimed in claim 1, wherein each product leaves the cartridge through an outlet passage of the cartridge, the outlet passage being defined by a dispensing end piece of the cartridge, said end piece being driven in rotation relative to a body of the cartridge by a drive mechanism of the dispenser in order to dispense the base product contained in the cartridge. ### Claim 14 (depends on 1) The system as claimed in claim 1, which comprises a mechanism for homogenizing the first base product.