Cosmetic

Patent metadata

Field	Value
Publication number	US-9289372-B2
Application number	US-201514588622-A
Country	US
Kind code	B2
Filing date	Jan 2, 2015
Priority date	Jan 23, 2014
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

A cosmetic has a polymer (A) having a content of an oxyalkylene unit and/or a glycerin unit of 0.5% by mass or more and under 5.0% by mass; and a polymer (B) having a content of an oxyethylene unit and/or a glycerin unit of 5.0% by mass or more and 20.0% by mass or less, the polymer (A) and the polymer (B) being a crosslinking organopolysiloxane polymer obtained by reacting organohydrogen polysiloxane having two or more hydrogen atoms bonded to a silicon atom in one molecule and polyoxyalkylene and/or polyglycerin having two or more aliphatic unsaturated bonds in one molecule, wherein the mass ratio of the polymer (A) to the polymer (B) is 5:95 to 60:40.

First claim

What is claimed is:

1. A cosmetic comprising a polymer (A) having a content of an oxyalkylene unit and/or a glycerin unit of 0.5% by mass or more and under 5.0% by mass; and a polymer (B) having a content of an oxyethylene unit and/or a glycerin unit of 5.0% by mass or more and 20.0% by mass or less, the polymer (A) and the polymer (B) being a crosslinking organopolysiloxane polymer obtained by reacting organohydrogen polysiloxane having two or more hydrogen atoms bonded to a silicon atom in one molecule and polyoxyalkylene and/or polyglycerin having two or more aliphatic unsaturated bonds in one molecule in the presence of a catalyst for a hydrosilylation reaction, wherein a mass ratio of the polymer (A) to the polymer (B) is 5:95 to 60:40.

2. The cosmetic according to claim 1 , wherein the first crosslinking organopolysiloxane polymer of the polymer (A) and the second crosslinking organopolysiloxane polymer of the polymer (B) are each obtained by subjecting an organohydrogen polysiloxane represented by the following general formula (I) and one or more compounds selected from the group consisting of a polyoxyalkylene compound represented by the following general formulae (II), (III), or (IV) and a polyglycerin compound represented by the following general formula (V) to addition polymerization, are insoluble in an organic solvent, and swell by containing a liquid oil, an amount of which is own weight or more of the crosslinking organopolysiloxane polymer,
R 1 a H c Si (4-a-c)/2   (I)

C d H 2d-1 O(C e H 2e O) f C d H 2d-1   (II)

C d H 2d-1 O(CH 2 CH(OH)CH 2 O) h C d H 2d-1   (V)

wherein each R 1 independently represents the same or different substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms having no alkenyl group; R 3 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms having no hydrogen atom or alkenyl group; each R 4 independently represents the same or different organic group represented by —C d H 2d-1 or the same as R 3 ; “a” and “c” represent a positive number satisfying 1.0≦a≦2.3 and 0.001≦c≦1.0, respectively, and also satisfying 1.5≦a+c≦2.6; “d” represents an integer of 2 to 6; “e” represents an integer of 2 to 4; “f” represents an integer of 1 to 200; “g” represents an integer of 1 to 20; “h” represents an integer of 2 to 10; and “x” represents 0 or 1.

3. The cosmetic according to claim 2 , wherein the polymer (A) and the polymer (B) are each obtained by subjecting the organohydrogen polysiloxane (I) and the polyoxyalkylene compound (II) or the polyglycerin compound (V) to addition polymerization, wherein the content of an oxyethylene and/or a glycerin unit in the polymer (A) is 0.5% by mass or more and under 5.0% by mass.

4. The cosmetic according to claim 3 , wherein the cosmetic comprises the polymer (A) and the polymer (B), with a total content being 1.0% by mass or more and 50% by mass or less, relative to a total amount of the cosmetic.

5. The cosmetic according to claim 4 , wherein the cosmetic further contains water and is in a form of an emulsion.

6. The cosmetic according to claim 3 , wherein the cosmetic further contains water and is in a form of an emulsion.

7. The cosmetic according to claim 6 , wherein the emulsion is in a form of a water-in-oil.

8. The cosmetic according to claim 3 , wherein the cosmetic further contains one or more types of a silicone oil, a hydrocarbon oil, a glycol, an ester oil, a glyceride oil, and a UV absorbing-scattering agent.

9. The cosmetic according to claim 2 , wherein the cosmetic comprises the polymer (A) and the polymer (B), with a total content being 1.0% by mass or more and 50% by mass or less, relative to a total amount of the cosmetic.

10. The cosmetic according to claim 9 , wherein the cosmetic further contains water and is in a form of an emulsion.

11. The cosmetic according to claim 2 , wherein the cosmetic further contains water and is in a form of an emulsion.

12. The cosmetic according to claim 11 , wherein the emulsion is in a form of a water-in-oil.

13. The cosmetic according to claim 2 , wherein the cosmetic further contains one or more types of a silicone oil, a hydrocarbon oil, a glycol, an ester oil, a glyceride oil, and a UV absorbing-scattering agent.

14. The cosmetic according to claim 2 , wherein the cosmetic further contains a powder and is in a form of a liquid, a paste or a solid, with the powder dispersed therein.

15. The cosmetic according to claim 1 , wherein the cosmetic comprises the polymer (A) and the polymer (B), with a total content being 1.0% by mass or more and 50% by mass or less, relative to a total amount of the cosmetic.

16. The cosmetic according to claim 15 , wherein the cosmetic further contains water and is in a form of an emulsion.

17. The cosmetic according to claim 1 , wherein the cosmetic further contains water and is in a form of an emulsion.

18. The cosmetic according to claim 17 , wherein the emulsion is in a form of a water-in-oil.

19. The cosmetic according to claim 1 , wherein the cosmetic further contains one or more types of a silicone oil, a hydrocarbon oil, a glycol, an ester oil, a glyceride oil, and a UV absorbing-scattering agent.

20. The cosmetic according to claim 1 , wherein the cosmetic further contains a powder and is in a form of a liquid, a paste or a solid, with the powder dispersed therein.

Assignees

• Shinetsu Chemical Co

Inventors

• Sakuta Koji
• Akabane Emi
• Ikeda Teruki

Classifications

• A61Q19/007

  Preparations for dry skin · CPC title

• A61K2800/95

  Involves in-situ formation or cross-linking of polymers · CPC title

• A61Q17/04

  Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title

• A61K8/891

  saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone · CPC title

• A61K8/92

  Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof · CPC title