Liquid cosmetic composition

Patent metadata

Field	Value
Publication number	US-2018369081-A1
Application number	US-201616062346-A
Country	US
Kind code	A1
Filing date	Dec 21, 2016
Priority date	Dec 25, 2015
Publication date	Dec 27, 2018
Grant date	—

Abstract

Provided is a liquid cosmetic composition suitable for eye makeup, which does not get blurred on the skin when applied thereon and drops (drips) less and which has a low viscosity and can draw lines densely. Further, provided is a liquid cosmetic composition suited to eye makeup, which is prevented from producing uneven colors due to a difference in a hue between an upper part and a lower part and which can draw lines densely even when a long and narrow brush is used. The above liquid cosmetic composition is characterized by comprising, for example, at least an aqueous emulsion of an acrylic acid base polymer having a glass transition point of 20° C. or lower obtained by polymerizing monomers selected from an acrylic acid monomer, a methacrylic acid monomer, an acrylic ester monomer and a methacrylic ester monomer, crystalline cellulose, an inorganic pigment, and water.

First claim

1 . A liquid cosmetic composition comprising at least an aqueous emulsion of an acrylic acid base polymer having a glass transition point of 20° C. or lower obtained by polymerizing monomers selected from an acrylic acid monomer, a methacrylic acid monomer, an acrylic ester monomer and a methacrylic ester monomer, crystalline cellulose, an inorganic pigment, and water.

2 . The liquid cosmetic composition as described in claim 1 , comprising 2 to 30% by mass (in terms of a solid content) of the aqueous emulsion of the acrylic acid base polymer, 0.1 to 3.0% by mass of the crystalline cellulose and 1 to 30% by mass of the inorganic pigment.

3 . The liquid cosmetic composition as described in claim 1 , wherein iron oxide particles are contained as the inorganic pigment.

4 . The liquid cosmetic composition as described in claim 1 , wherein a viscosity at a temperature of 25° C. and a shear rate of 3.83 s −1 is 20 to 500 mPa·s.

5 . A liquid cosmetic composition comprising at least an aqueous emulsion of an acrylic acid base polymer having a glass transition point of 20° C. or lower obtained by polymerizing monomers selected from an acrylic acid monomer, a methacrylic acid monomer, an acrylic ester monomer and a methacrylic ester monomer, fermented cellulose, a color material containing at least a planar pigment, and water.

6 . The liquid cosmetic composition as described in claim 5 , comprising 2 to 20% by mass (in terms of a solid content) of the aqueous emulsion of the acrylic acid base polymer, 0.05 to 0.6% by mass of the fermented cellulose and 1 to 30% by mass of the color material containing at least the planar pigment.

7 . The liquid cosmetic composition as described in claim 5 , wherein iron oxide particles are contained as the color material, and a chelating agent is further contained.

8 . The liquid cosmetic composition as described in claim 5 , wherein a viscosity at a temperature of 25° C. and a shear rate of 76.6 s −1 is 30 to 200 mPa·s.

9 . The liquid cosmetic composition as described in claim 1 , wherein it is a liquid cosmetic composition for eye makeup.

10 . (canceled)

11 . (canceled)

12 . A liquid cosmetic composition as described in claim 5 , wherein it is a liquid cosmetic composition for eye makeup.

13 . A liquid cosmetic applicator equipped with at least a coating part and a coating liquid reservoir, wherein the coating part comprises a brush; the fibers of the brush include those having a cross section other than a circle; and the liquid cosmetic composition as described in claim 1 is stored in the coating liquid reservoir.

14 . A liquid cosmetic applicator as described in claim 11 , wherein all the fibers of the brush have cross sections other than a circle.

15 . A liquid cosmetic applicator equipped with at least an coating part and a coating liquid reservoir, wherein the coating part comprises a brush; the fibers of the brush include those having a cross section other than a circle; and the liquid cosmetic composition as described in claim 5 is stored in the coating liquid reservoir.

16 . The liquid cosmetic applicator as described in claim 13 , wherein all the fibers of the brush have cross sections other than a circle.

Assignees

• Mitsubishi Pencil Co

Inventors

• Sakuma Satoshi
• Satou Hiroshi

Classifications

• A61K8/8147

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers · CPC title

• A61K2800/51

  Chelating agents · CPC title

• A61K8/04

  Dispersions; Emulsions · CPC title

• A61K8/8152

  Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers · CPC title

• A61K8/19

  containing inorganic ingredients · CPC title