Oil in water type solid cosmetic

Patent metadata

Field	Value
Publication number	US-2019133916-A1
Application number	US-201716095223-A
Country	US
Kind code	A1
Filing date	Apr 27, 2017
Priority date	Apr 28, 2016
Publication date	May 9, 2019
Grant date	—

Abstract

To provide an oil in water type solid cosmetic composition which can be solidified into a stable solid shape, has a desired sensation of elasticity, has favorable take up properties when taken up with a finger, and imparts a superior sensation of freshness when utilized, as an oil in water type preparation. An oil in water type solid cosmetic includes: (a) 0.1 to 5% by mass of a hydrophobically modified polyether urethane; (b) 0.01 to 5% by mass of a hydrophilic plate shaped powder; (c) a hydrophobic powder; (d) an oil component; and (e) water.

First claim

1 . An oil in water type solid cosmetic, comprising:
(a) 0.1 to 5% by mass of a hydrophobically modified polyether urethane represented by Formula (I) below; (b) 0.01 to 59/a by mass of a hydrophilic plate shaped powder; (c) a hydrophobic powder; (d) an oil component; and (e) water;
R 1 —{(O—R 2 ) k —OCONH—R 3 [—NHCOO—(R 4 —O) n —R 5 ] h } m   Formula (I):

wherein:
R 1 , R 5 and R 4 each independently represent a hydrocarbon group having 2 to 4 carbon atoms;
R 3 represents a hydrocarbon group having 1 to 10 carbon atoms which may have a urethane bond;
R 5 is a hydrocarbon group having 8 to 36 carbon atoms;
m is a number 2 or greater;
h is a number 1 or greater;
k is a number within a range from 1 to 500; and
n is a number within a range from 1 to 200.

2 . An oil in water type solid cosmetic as defined in claim 1 , wherein:
the average aspect ratio of the (b) hydrophilic plate shaped powder is within a range from 10 to 100.

3 . An oil in water type solid cosmetic as defined in claim 1 , wherein:
the (a) hydrophobically modified polyether urethane is a (PEG-240/decyltetradeceth-20/HDI) copolymer.

4 . An oil in water type solid cosmetic as defined in claim 1 , wherein:
the cosmetic is in the form of a balm,

5 . An oil in water type solid cosmetic as defined in claim 1 , wherein:
the cosmetic is a makeup cosmetic.

6 . An oil in water type solid cosmetic as defined in claim 2 , wherein:
the (a) hydrophobically modified polyether urethane is a (PEG-240/decyltetradeceth-20/HDI) copolymer.

7 . An oil in water type solid cosmetic as defined in claim 2 , wherein:
the cosmetic is in the form of a balm.

8 . An oil in water type solid cosmetic as defined in claim 3 , wherein:
the cosmetic is in the form of a balm.

9 . An oil in water type solid cosmetic as defined in claim 2 , wherein:
the cosmetic is a makeup cosmetic.

10 . An oil in water type solid cosmetic as defined in claim 3 , wherein:
the cosmetic is a makeup cosmetic.

11 . An oil in water type solid cosmetic as defined in claim 4 , wherein:
the cosmetic is a makeup cosmetic.

Assignees

• Shiseido Co Ltd

Inventors

• Kubota Shun

Classifications

• A61K8/062 Primary

  Oil-in-water emulsions · CPC title

• A61K8/86 Primary

  Polyethers · CPC title

• A61Q1/00

  Make-up preparations; Body powders; Preparations for removing make-up · CPC title

• A61Q1/02

  Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) · CPC title

• A61K8/87

  Polyurethanes · CPC title