# US 10,869,533 B2 · Applicator having improved contents transfer ability > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,533 B2 - Document ID: US10869533B2 - Status: Granted - Kind: B2 - Application number: 15/570,150 - Filed: 2016-04-22 - Published: 2018-05-03 - Granted: 2020-12-22 - Earliest claimed: 2015-04-30 - Assignees: Amorepacific Corporation - Applicants: Amorepacific Corporation - Inventors: Jung Sun Choi - Web page: https://patentgrep.com/patent/US10869533B2 ## CPC - A45D 37/00: Sachet pads specially adapted for liquid toiletry or cosmetic substances - A45D 33/34: Powder-puffs, e.g. with installed container - A45D 34/04: Appliances specially adapted for applying liquid, e.g. using roller or ball - A45D 34/042: {using a brush or the like} - A45D 40/262: {using a brush or the like} - B32B 5/18: characterised by features of a layer {of} foamed material - A45D 33/36: with handle - A45D 2200/1009: Applicators comprising a pad, tissue, sponge, or the like - A45D 2200/1018: comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means - B32B 2266/0278: Polyurethane - B32B 2266/104: Micropores, i.e. with average diameter in the range from 0.1 µm to 0.1 mm - 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 - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract The present invention relates to a cosmetic composition applicator comprising a urethane foam obtained by foaming a polyurethane, wherein the urethane foam has a structure comprising a membrane structure and a net structure. According to the present invention, the cosmetic composition applicator has improved transfer ability due to the simple absorption and discharge of a cosmetic composition and, simultaneously, can smoothly apply a cosmetic composition to the skin without caking. ## Claims ### Claim 1 An applicator for a cosmetic composition, which comprises urethane foam obtained by foaming polyurethane, wherein the urethane foam has a structure comprising a membrane structure and a net structure, and comprises pores having an average pore size of 70-300 μm, wherein the urethane foam has a multi-layered structure which comprises a plurality of urethane foam layers having a different pore size or a plurality of urethane foam layers made of a different material, and wherein the urethane foam of the membrane structure has an average pore size of 70-150 μm and the urethane foam of the net structure has an average pore size of 100-300 μm. ### Claim 2 (depends on 1) The applicator for a cosmetic composition according to claim 1, wherein the urethane foam is at least one type of foam selected from polyether-based polyurethane, polyester-based polyurethane and polycarbonate-based polyurethane. ### Claim 3 (depends on 1) The applicator for a cosmetic composition according to claim 1, wherein the urethane foam is foam of polyether-based polyurethane. ### Claim 4 (depends on 1) The applicator for a cosmetic composition according to claim 1, wherein the urethane foam comprises the membrane structure and the net structure at an area ratio of 9:1-3:7. ### Claim 5 (depends on 1) The applicator for a cosmetic composition according to claim 1, which has a delivery ratio of a cosmetic composition of 30%-100%, wherein the delivery ratio is calculated by the following Mathematic Formula 1: Delivery ratio (%)=(amount of cosmetic composition taken up by applicator to target for application (discharged amount)/amount of cosmetic composition absorbed by applicator (absorbed amount))×100. [Mathematical Formula 1] ### Claim 6 (depends on 1) The applicator for a cosmetic composition according to claim 1, which has an Asker F hardness of 30-80. ### Claim 7 (depends on 1) The applicator for a cosmetic composition according to claim 1, which has a thickness of 0.05 mm-8 mm. ### Claim 8 (depends on 1) The applicator for a cosmetic composition according to claim 1, which has a density of 0.05-0.2 g/cm3. ### Claim 9 (depends on 1) The applicator for a cosmetic composition according to claim 1, wherein the urethane foam comprises pores and has a pore number per inch (ppi) of 5-500 per inch of the urethane foam. ### Claim 10 (depends on 1) The applicator for a cosmetic composition according to claim 1, which further comprises at least one type of foam selected from acrylonitrile butadiene rubber (NBR), styrene-butadiene rubber (SBR), natural rubber (NR), polyvinyl chloride, polyethylene, ethylene-vinyl acetate rubber (EVA), latex, silicone, styrene-isoprene-styrene (SIS), styrene-ethylene-butylene-styrene (SEBS), polyvinyl alcohol (PVA), nitrile rubber, butyl rubber, chloroprene rubber, polyolefin, ether-based polyurethane, ester-based polyurethane, ethylene-based polyurethane, polyethylene terephthalate and polylactic acid, in combination with the urethane foam. ### Claim 11 (depends on 1) The applicator for a cosmetic composition according to claim 1, which further comprises a polyurethane film layer on at least one surface of the urethane foam. ### Claim 12 (depends on 1) The applicator for a cosmetic composition according to claim 1, which further comprises a string, loop or grip fixed thereto. ### Claim 13 (depends on 1) A cosmetic product comprising: the applicator for a cosmetic composition as defined in claim 1; and a cosmetic composition. ### Claim 14 (depends on 13) The cosmetic product according to claim 13, wherein the cosmetic composition comprises a water-in-oil (W/O) type, oil-in-water (O/W) type, oil dispersed, water dispersed or solubilized composition. ### Claim 15 (depends on 13) The cosmetic product according to claim 13, which further comprises a carrier for supporting the cosmetic composition.