Barrier patch with soluble film and methods of improving skin appearance

Patent metadata

Field	Value
Publication number	US-10857076-B2
Application number	US-201715843866-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Jan 9, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A multilayer beauty care product or method is provided. The beauty care product has a water soluble film zone that includes a water soluble film forming polymer and a cosmetic composition with an effective amount of a skin active agent. The product also has a barrier patch having a backing layer and a pressure sensitive adhesive zone. The adhesive zone and the water soluble film zone are continuous, discontinuous, or a combination thereof. The product exhibits a dynamic modulus.

First claim

What is claimed is:

1. A method of improving the appearance of skin comprising the steps of:
identifying a target portion of skin; and
topically applying, to the target portion of skin, a multi-layered beauty care product for a treatment period, the multi-layered beauty care product comprising:
a barrier patch comprising:
a backing layer comprising one or more layers of ethylene vinyl acetate and having a first surface and a second surface; a water vapor transmission rate (WVTR) of about 1 g/m 2 /24 h to about 500 g/m 2 /24 h;
a pressure sensitive adhesive layer, having an upper surface and a lower surface, the lower surface of the pressure sensitive adhesive layer in contact with the first surface of the backing layer; and
a discontinuous water soluble film layer comprising a plurality of discrete water soluble film zones spatially separated from one another by the pressure sensitive adhesive layer, wherein each of the water soluble film zone comprises
a water soluble film forming polymer;
a cosmetic composition comprising an effective amount of a skin active agent; and
about 2% to about 80% by weight of a plasticizer selected from the group consisting of glycerol, ethylene glycol, diethyleneglycol, propylene glycol, sorbitol, pentaerythritol, glucamine, N-methylglucamine, sodium cumenesulfonate, and combinations thereof;
wherein the water soluble film layer is in contact with either the first surface of the backing layer, the upper surface of the pressure sensitive adhesive layer, or both; and
wherein the water soluble film layer has an initial modulus of from about 30 MPa to about 600 MPa and the water soluble film is capable of a modulus reduction of about 90% to about 100% at 37 C and 75% relative humidity compared to the initial modulus at 25 C and 40% relative humidity, wherein the water soluble film layer or product comprises a % weight increase, at 1 hour, 6 hours or 24 hours, of about 20 to about 80%.

2. The method of claim 1 wherein the initial modulus is from about 75 MPa to about 500 MPa.

3. The method of claim 1 wherein the water soluble film layer or product comprises a modulus reduction of about 90% to about 100% compared to the initial modulus.

4. The method of claim 1 wherein the WVTR is from about 1 g/m 2 /24 h to about 250 g/m 2 /24 h.

5. The method of claim 1 wherein the water soluble film layer comprises from about 30% to about 99%, of the water soluble film forming polymer selected from the group consisting of polyethylene oxide polymer, polyvinyl alcohols, polyvinyl alcohol copolymers, starch, methylcellulose, carboxymethylcellulose sodium, hydroxyethyl cellulose, hydroxypropyl methylcellulose and combinations thereof.

6. The method of claim 5 wherein the water soluble film forming polymer comprises methylcellulose, hydroxypropyl methylcellulose, polyethylene oxide or combinations thereof.

7. The method of claim 5 wherein the water soluble film forming polymer is polyethylene oxide having a molecular weight from about 500 to about 10,000,000.

8. The method of claim 7 wherein the molecular weight of the polyethylene oxide is from about 100,000 to about 300,000.

9. The method of claim 1 , wherein the backing layer comprises a modulus reduction of about 25% to about 50% when conditions change from 25° C./40% RH to 37° C./90% RH.

10. The method of claim 1 further comprising a ratio of the modulus of the water soluble film layer to the modulus of the backing layer or barrier patch, wherein the modulus ratio is greater than 1 at 25° C./40% RH and the ratio is less than 1 at 37° C./90% RH.

11. The method of claim 1 wherein the water soluble film layer further comprises a top surface and a bottom surface.

12. The method of claim 11 wherein the bottom surface of the water soluble film layer is in contact with the upper surface of the pressure sensitive adhesive layer and the pressure sensitive adhesive layer is continuous.

13. The method of claim 11 wherein the top surface of the water soluble film layer and the upper surface of the pressure sensitive adhesive layer are co-planar or collinear.

14. The method of claim 11 wherein the bottom surface of the water soluble film layer and the lower surface of the pressure sensitive adhesive layer are co-planar or collinear.

15. The method of claim 1 wherein the barrier patch or backing layer is water impermeable.

16. The method of claim 1 wherein the water soluble film has a total thickness of about 2 microns to about 150 microns.

17. The method of claim 1 wherein the barrier patch or product has a total thickness of 20 microns to 500 microns.

18. The method of claim 1 wherein the product, barrier patch, or backing layer is substantially free of fibrous absorbent materials, superabsorbent materials, non-woven materials, cotton, rayon, acrylics, polypropylene fibers or polyester fibers.

19. The method of claim 1 wherein the pressure sensitive adhesive layer 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, and combinations thereof.

20. The method of claim 1 wherein the backing layer is substantially free of an effective amount of the skin agent.

21. The method of claim 1 wherein the backing layer is a laminate comprising a film and a non-woven material.

22. The method of claim 1 wherein the target portion of skin is healthy skin.

23. The method of claim 1 wherein the target portion of skin is selected from the group consisting of forehead skin, perioral skin, chin, periorbital skin, nose, cheek, skin surface, and combinations thereof and is also selected from the group consisting of a hyperpigmented spot, wrinkles, fine lines, dryness, skin laxity and combinations thereof.

24. The method of claim 1 wherein the treatment period comprises application to the skin once or twice a day for at least two weeks or at least eight weeks and the product remains on the target portion of skin for about 1 minute to about 24 hours prior to the removal from the skin.

Assignees

• Procter & Gamble

Inventors

• Boswell Emily Charlotte
• Hunter Jack Alan
• Roddy Michael Joseph
• Wilder Elizabeth Anne

Classifications

• A45D37/00 Primary

  Sachet pads specially adapted for liquid toiletry or cosmetic substances · CPC title

• A45D44/002

  Masks for cosmetic treatment of the face · CPC title

• A45D2200/1036

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

• A61K8/02

  characterised by special physical form · CPC title

• A61K31/455

  Nicotinic acids, e.g. niacin; Derivatives thereof, e.g. esters, amides · CPC title