Barrier patch of a foamed film and methods of improving skin appearance

Patent metadata

Field	Value
Publication number	US-9872816-B2
Application number	US-201615296736-A
Country	US
Kind code	B2
Filing date	Oct 18, 2016
Priority date	Oct 22, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A beauty care product is provided. The beauty care product has a multi-layered barrier patch with a non-foamed first layer and a foamed second layer. The non-foamed first layer has a non-foamed polymer film with a first surface and a thickness from 5 microns to 250 microns. The foamed second layer has a foamed polymer film comprising a Mean Void Volume Percentage from 45% to 80% and a thickness of from 10 microns to 250 microns. The beauty care product also has a cosmetic composition with an effective amount of a skin active agent and a pressure sensitive adhesive.

First claim

What is claimed is:

1. A beauty care product comprising:
a multi-layered barrier patch comprising:
(i) a non-foamed first layer comprising a non-foamed polymer film having a first surface, having a thickness from about 5 microns to about 250 microns;
(ii) a foamed second layer comprising a foamed polymer film comprising a Mean Void Volume Percentage from about 45% to about 80%, and a thickness of from about 10 microns to about 250 microns;
wherein the foamed second layer comprises from about 15% to about 40%, of polyethylene (PE) and from about 60% to about 85%, of ethylene vinyl acetate (EVA);

a cosmetic composition comprising an effective amount of a skin active agent; and
a pressure sensitive adhesive.

2. The product of claim 1 wherein the Mean Void Volume Percentage is from about 50% to about 75%.

3. The product of claim 1 wherein the barrier patch further comprises a WVTR from about 1 g/m 2 /24 h to about 500 g/m 2 /24 h.

4. The product of claim 3 wherein the barrier patch comprises a WVTR from about 1 g/m 2 /24 h to about 250 g/m 2 /24 h.

5. The product of claim 1 wherein the barrier patch is water impermeable.

6. The product of claim 1 wherein the barrier patch further comprises a Surface Roughness (Ra) from about 3 to about 30.

7. The product of claim 6 wherein the Surface Roughness is from about 4 to about 29.

8. The product of claim 1 wherein the barrier patch is substantially free of pigments.

9. The product of claim 1 wherein the multi-layered barrier patch further comprises a non-foamed third layer having a thickness from about 5 microns to about 250 microns, wherein the foamed second layer is in between the non-foamed first layer and the non-foamed third layer.

10. The product of claim 1 wherein the barrier patch further comprises a first surface and the pressure sensitive adhesive is in contact with at least part of the first surface of the barrier patch.

11. The product of claim 1 wherein the pressure sensitive adhesive is selected from the group consisting of acrylic and methacrylic ester homo- or copolymers, butyl rubber based systems, silicones, urethanes, vinyl esters and amides, olefin copolymer materials, styrene/isoprene diblock copolymers; styrene/butadiene diblock copolymers; butylene/ethylene/styrene triblock copolymers, and combinations thereof.

12. The product of claim 1 wherein the composition comprises from about 0.01% to about 10% of a skin active agent selected from the group consisting of vitamin E, vitamin A, vitamin B, niacinamide, glycerine, tocopherol acetate, D-panthenol, palmitoyl-lysine-threonine, palmitoyl-lysine-threonine-threonine-lysine-serine, N-undecyl-10-enoyl-L-phenylalanine, retinyl propionate, N-acetyl glucosamine, vitamin C, tretinoin, salicylic acid, benzoic acid, benzoyl peroxide, tretinoin, and combinations thereof.

13. The product of claim 1 wherein the barrier patch has a total thickness of about 20 microns to about 500 microns.

14. The product of claim 1 wherein the cosmetic composition is an oil in water emulsion.

15. The product of claim 1 wherein the barrier patch is substantially free of a non-woven material.

16. A beauty care product comprising:
a multi-layered barrier patch comprising:
(i) a non-foamed first layer comprising a non-foamed polymer film having a first surface, and having a thickness from about 5 microns to about 250 micron; wherein the non-foamed first layer is substantially free of pigments;
(ii) a foamed second layer comprising a foamed polymer film comprising ethylene vinyl acetate, having a Mean Void Volume Percentage from about 45% to about 80% and a thickness of from about 10 microns to about 250 microns;
wherein the barrier patch comprises a Surface Roughness from about 3 to about 30;
wherein the foamed second layer comprises from about 15% to about 40%, of polyethylene (PE) and from about 60% to about 85%, of ethylene vinyl acetate (EVA);

a cosmetic composition comprising an effective amount of a skin active agent; and
a pressure sensitive adhesive.

17. The product of claim 16 wherein the ethylene vinyl acetate polymer has an ethylene-to-vinyl acetate monomer ratio of about 4:1 to about 1:1.

18. The product of claim 16 wherein the ratio is from about 3:1 to about 3:2.

19. The product of claim 16 wherein the barrier patch further comprises a WVTR from about 1 g/m 2 /24 h to about 500 g/m 2 /24 h.

20. The product of claim 16 wherein the barrier patch is water impermeable.

21. The product of claim 16 wherein the barrier patch further comprises a Flop Index (FI) from about 2.5 to about 15.

22. The product of claim 16 wherein the barrier patch is substantially free of pigments.

23. The product of claim 16 wherein the barrier patch further comprises a flexibility from about 0.009 gfcm 2 /cm to about 0.14 gfcm 2 /cm.

24. The product of claim 16 wherein the non-foamed first layer comprises a non-foamed polymer film comprising ethylene vinyl acetate.

25. The product of claim 24 wherein the multi-layered barrier patch further comprises a non-foamed third layer having a thickness from 5 microns to 250 microns and wherein the foamed second layer is in between the non-foamed first layer and the non-foamed third layer.

26. The product of claim 16 wherein the barrier patch is substantially free of a non-woven material.

27. The product of claim 16 wherein the Mean Void Volume Percentage is from about 50% to about 75%.

28. The product of claim 21 wherein the barrier patch further comprises a Flop Index (FI) from about 3 to about 6.

Assignees

• Procter & Gamble

Inventors

• Boswell Emily Charlotte
• Wilder Elizabeth Anne
• Remus Michael

Classifications

• A45D40/0087

  for samples · CPC title

• A45D34/00

  Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes · CPC title

• A45D2200/1036

  containing a cosmetic substance, e.g. impregnated with liquid or containing a soluble solid substance · CPC title

• A61K2800/412

  Microsized, i.e. having sizes between 0.1 and 100 microns · CPC title

• A61K2800/54

  Polymers characterized by specific structures/properties · CPC title