# US 11,896,684 B2 · Cosmetic composition having increased skin contact and makeup persistence and method of manufacturing same

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- Number: US 11,896,684 B2
- Document ID: US11896684B2
- Status: Granted
- Kind: B2
- Application number: 17/843,440
- Filed: 2022-06-17
- Published: 2022-10-13
- Granted: 2024-02-13
- Earliest claimed: 2019-02-11
- Assignees: Cosmecca Korea Co., Ltd.
- Applicants: Cosmecca Korea Co., Ltd.
- Inventors: Hyun Dae Cho; Byoung Moon Kim; Yeen Ji Kim; Goo Ho Kwon; Jin Young Kim
- Web page: https://patentgrep.com/patent/US11896684B2

## CPC

- A61K 8/022: {Powders; Compacted Powders}
- A61K 8/025: {Explicitly spheroidal or spherical shape}
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/26: Aluminium; Compounds thereof
- A61K 8/27: Zinc; Compounds thereof
- A61K 8/29: Titanium; Compounds thereof
- A61K 8/585: {Organosilicon compounds}
- A61K 8/8141: {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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers}
- A61K 8/87: Polyurethanes
- A61K 8/88: Polyamides
- A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61Q 1/06: Lipsticks
- A61Q 1/10: for eyes, e.g. eyeliner, mascara
- A61K 2800/436: Interference pigments, e.g. Iridescent, Pearlescent
- A61K 2800/59: Mixtures
- 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

Disclosed are a cosmetic composition having increased skin contact and makeup persistence and a method of manufacturing the same. The method includes: forming a powder continuous phase by rapidly mixing a powder and a film-forming agent; and obtaining a cosmetic composition in which a surface of the powder is compounded with the film-forming agent by heating the powder continuous phase for a predetermined time. In an embodiment, the cosmetic composition is manufactured by the method. In an embodiment, the cosmetic composition includes 5 wt % to 30 wt % of a powder, 0.1 wt % to 10 wt % of a film-forming agent, 10 wt % to 30 wt % of a silicone oil, and 0.1 wt % to 10 wt % of a spherical powder.

## Claims

### Claim 1

A method of manufacturing a cosmetic composition having increased skin contact and makeup persistence, comprising:
obtaining a mixture by pulverizing and mixing a pigment (A) including 5 wt % to 30 wt % of a powder and 0.1 wt % to 10 wt % of a film-forming agent at 800 revolutions per minute (rpm) to 1,000 rpm, using a pulverizer of 3 HP or more;
stirring the mixture and an oil part (B) including 10 wt % to 30 wt % of a silicone oil and 0.1 wt % to 10 wt % of a spherical powder in a vacuum emulsification bath, warmed to 70° C. to 80° C. with stirring at 1,500 rpm to 2,600 rpm for 5 min to 10 min;
mixing an aqueous part (C) including a purified water, a sequestering agent, an emulsion stabilizer, a moisturizer and a preservative in an aqueous dissolution bath with stirring at a temperature of 60° C. to 70° C.;
adding the aqueous part (C) to the oil part (B) of the vacuum emulsification bath and mixing with stirring at 1,500 rpm to 3,600 rpm for 5 min to 8 min and cooling to 40° C. to 45° C.; and
adding an additive (D) including a perfume and mixing with stirring at 1,500 rpm to 3,600 rpm for 2 min to 3 min at 30° C. to 35° C.

### Claim 2 (depends on 1)

The method of claim 1, wherein the silicone oil is at least one selected from the group consisting of cyclopentasiloxane, cyclohexasiloxane, dimethicone, phenyl trimethicone, capryl dimethicone, diphenyl dimethicone, and mixtures thereof.

### Claim 3 (depends on 1)

The method of claim 1, wherein the spherical powder is at least one selected from the group consisting of silica, polyurethane, polymethyl methacrylate, nylon, silicone resin powder, and mixtures thereof.