Barrier patch with soluble film and methods of improving skin appearance

Patent metadata

Field	Value
Publication number	US-10751265-B2
Application number	US-201715843812-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Jan 9, 2017
Publication date	Aug 25, 2020
Grant date	Aug 25, 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 multi-layered beauty care product for applying a skin active agent to the skin, comprising:
a barrier patch comprising:
a backing layer 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 being in contact with the first surface of the backing layer; and

a discontinuous water soluble film comprising:
a plurality of discrete water soluble film zones disposed on the upper surface of the pressure sensitive adhesive layer and 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 the skin active agent, wherein each of the water soluble film zone is in contact with either the first surface of the backing layer, the upper surface of the adhesive zone, or both; and

wherein the water soluble film has an initial modulus of from about 30 MPa to about 600 MPa; 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; and the water soluble film or product is capable of a % weight increase, at 1 hour, 6 hours or 24 hours, of about 10% to about 80%, and
wherein each of the water soluble film zone further comprises from about 2% to about 80% by weight of the water soluble film zone, of a plasticizer; and the plasticizer is selected from the group consisting of glycerol, ethylene glycol, diethyleneglycol, propylene glycol, sorbitol, pentaerythritol, glucamine, N-methylglucamine, sodiumcumenesulfonate, and combinations thereof.

2. The product of claim 1 wherein the % weight increase is about 20% to about 70%.

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

4. The product 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 product of claim 1 wherein each of the water soluble film zone comprises from about 30% to about 99%, of a the water soluble film forming polymer, wherein the water soluble film forming polymer is 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 product of claim 5 wherein the water soluble film forming polymer comprises methylcellulose, hydroxypropyl methylcellulose, polyethylene oxide or a combination thereof.

7. The product of claim 6 wherein the water soluble film forming polymer is polyethylene oxide and has a molecular weight of about 500 to about 10,000,000.

8. The product of claim 7 wherein the molecular weight is about 100,000 to about 300,000.

9. The product of claim 1 where the backing layer comprises one or more layers of ethylene vinyl acetate, wherein the backing layer is capable of a modulus reduction of about 25% to about 50% when conditions change from 25° C./40% RH to 37° C./90% RH.

10. The product of claim 1 further comprising a ratio of the modulus of water soluble film to the modulus of 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 product of claim 1 wherein the water soluble film zone and the adhesive layer are substantially separate.

12. The product of claim 1 wherein the adhesive layer is continuous or discontinuous.

13. The product of claim 1 wherein the water soluble film further comprises a top surface and a bottom surface.

14. The product of claim 13 wherein the bottom surface of the water soluble film is in contact with the upper surface of the adhesive layer and the adhesive layer is continuous.

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

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

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

18. The product 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 and polyester fibers.

19. 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, and combinations thereof.

20. The product of claim 1 wherein the adhesive layer, backing layer, or barrier patch is substantially free of an effective amount of the skin agent.

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

Assignees

• Procter & Gamble
• The Procter & Gamble

Inventors

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

Classifications

• A61K9/7084

  Transdermal patches having a drug layer or reservoir, and one or more separate drug-free skin-adhesive layers, e.g. between drug reservoir and skin, or surrounding the drug reservoir; Liquid-filled reservoir patches · CPC title

• A61K8/342

  Alcohols having more than seven atoms in an unbroken chain · CPC title

• A45D37/00

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

• A61K8/86

  Polyethers · CPC title

• A61Q19/00

  Preparations for care of the skin · CPC title