# US 2021/0330574 A1 · External preparation for concealing roughness

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- Number: US 2021/0330574 A1
- Document ID: US20210330574A1
- Status: Published application
- Kind: A1
- Application number: 17/284,287
- Filed: 2019-10-10
- Published: 2021-10-28
- Earliest claimed: 2018-10-10
- Assignees: Shiseido Company, Ltd.
- Applicants: Shiseido Company, Ltd.
- Inventors: Yukari SAITO; Tomoko IKEDA
- Web page: https://patentgrep.com/patent/US20210330574A1

## CPC

- A61K 8/922: {of vegetable origin}
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61K 8/064: {Water-in-oil emulsions, e.g. Water-in-silicone emulsions}
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/27: Zinc; 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 1/12: Face or body powders for grooming, adorning or absorbing
- A61K 2800/60: Particulates further characterized by their structure or composition
- 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

An objective of the present invention is to provide an external preparation for concealing roughness that is easy to spread when applied, while also having effects of concealing roughness such as fine wrinkles. The external preparation for concealing roughness of the present invention comprises (a) 1% to 15% by mass of a wax; and (b) 4% to 25% by mass of a non-spherical powder; and has a viscosity of 50,000 to 150,000 mPa·s.

## Claims

### Claim 1

An external preparation for concealing roughness, comprising:
(a) 1% to 15% by mass of a wax; and
(b) 4% to 25% by mass of a non-spherical powder; and
having a viscosity of 50,000 to 150,000 mPa·s.

### Claim 2 (depends on 1)

The external preparation as in claim 1, wherein a ratio of the blended amount of the (b) non-spherical powder to the (a) wax is 0.3 to 2.5.

### Claim 3 (depends on 1)

The external preparation as in claim 1, further comprising (c) a crosslinked siloxane elastomer.

### Claim 4 (depends on 1)

The external preparation as in claim 1, further comprising (d) a spherical powder.

### Claim 5 (depends on 1)

The external preparation as in claim 1, which is a water-in-oil emulsion cosmetic or an oil-based cosmetic.