Systems and methods for improving the appearance of the skin

Patent metadata

Field	Value
Publication number	US-10835479-B2
Application number	US-201615394862-A
Country	US
Kind code	B2
Filing date	Dec 30, 2016
Priority date	Dec 31, 2015
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

The invention relates to systems and methods for improving the appearance of the skin. The systems comprise 1) a skin-tightening composition comprising at least one thermoplastic elastomer and at least one adhesive polymer; and 2) a long-wear cosmetic composition comprising at least one silicone-polyamide copolymer, at least one silicone film former, and at least one volatile oil. Methods comprise applying the compositions of the systems on to the skin sequentially after a drying period.

First claim

We claim:

1. A method for improving the appearance of skin, said method comprising:
(1) applying to the skin of a subject a long-wear cosmetic composition comprising at least one silicone-polyamide copolymer, at least one silicone film former, and at least one volatile oil;
and, after an optional drying time;
(2) forming a film on top of the long-wear cosmetic composition by applying a skin-tightening composition to the skin, the skin-tightening composition comprising:
a. at least one thermoplastic elastomer chosen from amorphous hydrocarbon block copolymers of styrene and monomers of hydrocarbon containing 2 to 5 carbon atoms and comprising one or two ethylenic unsaturations, and having a first T g below about 0° C., and a second T g greater than about 25° C.;
b. at least one adhesive film-forming polymer chosen from polymer particles of C 1 -C 4 alkyl(methacrylate)polymer, stabilized in a non-aqueous dispersion; and
c. at least one filler;

wherein the Young Modulus of the film formed on the skin is greater than about 500 kPa.

2. A method for improving the appearance of skin, said method comprising:
(1) forming a film on the skin by applying a skin-tightening composition to the skin, the skin-tightening composition comprising:
a. at least one thermoplastic elastomer chosen from amorphous hydrocarbon block copolymers of styrene and monomers of hydrocarbon containing 2 to 5 carbon atoms and comprising one or two ethylenic unsaturations, and having a first T g below about 0° C., and a second T g greater than about 25° C.;
b. at least one adhesive film-forming polymer chosen from polymer particles of C 1 -C 4 alkyl(methacrylate)polymer, stabilized in a non-aqueous dispersion; and
c. at least one filler,

wherein the Young Modulus of the film formed on the skin is greater than about 500 kPa;
and, after an optional drying time;
(2) applying to the skin on top of the film, a long-wear a cosmetic composition comprising at least one silicone-polyamide copolymer, at least one silicone film former, and at least one volatile oil.

3. The method of claim 1 , wherein the at least one thermoplastic elastomer is present in the skin-tightening composition in an amount ranging from about 5% to about 25% by weight, relative to the total weight of the skin-tightening composition.

4. The method of claim 1 , wherein the at least one adhesive polymer is chosen from polymer particles comprising about 80% to about 100%, by weight, of C 1 -C 4 alkyl (meth)acrylate and of about 0% to about 20%, by weight, of ethylenically unsaturated acid monomer of C 1 -C 4 alkyl(methacrylate) polymer in an oil dispersion.

5. The method of claim 1 , wherein the polymer of the particles is chosen from:
polymers consisting of at one or more C 1 -C 4 alkyl(methacrylate)polymer; and
polymers consisting essentially of a copolymer of C 1 -C 4 (meth)acrylate and of (meth)acrylic acid or maleic anhydride.

6. The method of claim 1 , wherein the skin-tightening composition further comprises at least one additional component chosen from silicone elastomers, water, and colorants.

7. The method of claim 1 , wherein the skin-tightening composition further comprises at least one silicone elastomer chosen from silicone crosspolymers dispersed in at least one oil.

8. The method of claim 1 , wherein the silicone film former of the long-wear cosmetic composition is chosen from silsesquioxane, polyalkylsilsesquioxane, polymethylsilsesquioxane, siloxysilicate, trialkylsiloxysilicate, and trimethylsiloxysilicate.

9. The method of claim 1 , wherein the long-wear cosmetic composition is a makeup composition, a foundation, or a concealer composition.

10. The method of claim 1 , wherein the ratio of thermoplastic elastomer:adhesive polymer in the skin-tightening composition is in the range of about 1:1 to 8:1.

11. The method of claim 1 , wherein the skin-tightening composition has a consistency G* of greater than about 100 Pa (at 10% strain) and a phase angle below about 45°.

12. The method of claim 2 , wherein the at least one thermoplastic elastomer is present in the skin-tightening composition in an amount ranging from about 5% to about 25% by weight, relative to the total weight of the skin-tightening composition.

13. The method of claim 2 , wherein the at least one adhesive polymer is chosen from polymer particles comprising about 80% to about 100%, by weight, of C 1 -C 4 alkyl (meth)acrylate and of about 0% to about 20%, by weight, of ethylenically unsaturated acid monomer of C 1 -C 4 alkyl(methacrylate) polymer in an oil dispersion.

14. The method of claim 2 , wherein the polymer of the particles is chosen from:
polymers consisting of at one or more C 1 -C 4 alkyl(methacrylate)polymer; and
polymers consisting essentially of a copolymer of C 1 -C 4 (meth)acrylate and of (meth)acrylic acid or maleic anhydride.

15. The method of claim 2 , wherein the skin-tightening composition further comprises at least one additional component chosen from silicone elastomers, water, and colorants.

16. The method of claim 2 , wherein the skin-tightening composition further comprises at least one silicone elastomer chosen from silicone crosspolymers dispersed in at least one oil.

17. The method of claim 2 , wherein the silicone film former of the long-wear cosmetic composition is chosen from silsesquioxane, polyalkylsilsesquioxane, polymethylsilsesquioxane, siloxysilicate, trialkylsiloxysilicate, and trimethylsiloxysilicate.

18. The method of claim 1 , wherein the long-wear cosmetic composition is a makeup composition, a foundation, or a concealer composition.

19. The method of claim 1 , wherein the ratio of thermoplastic elastomer:adhesive polymer in the skin-tightening composition is in the range of about 1:1 to 8:1.

20. The method of claim 1 , wherein the skin-tightening composition has a consistency G* of greater than about 100 Pa (at 10% strain) and a phase angle below about 45°.

Assignees

• Oreal

Inventors

• Bernard Anne-Laure Suzanne
• Farran Alexandra Jane Elisa
• Deng Yang

Classifications

• A61K8/06

  Emulsions · CPC title

• A61K8/0241

  Containing particulates characterized by their shape and/or structure (see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes) · CPC title

• A61Q19/08

  Anti-ageing preparations · CPC title

• A61K8/898 Primary

  containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine · CPC title

• A61K8/26

  Aluminium; Compounds thereof · CPC title