# US 9,872,816 B2 · Barrier patch of a foamed film and methods of improving skin appearance

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- Number: US 9,872,816 B2
- Document ID: US9872816B2
- Status: Granted
- Kind: B2
- Application number: 15/296,736
- Filed: 2016-10-18
- Published: 2017-04-27
- Granted: 2018-01-23
- Earliest claimed: 2015-10-22
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Emily Charlotte Boswell; Elizabeth Anne Wilder; Michael Remus
- Web page: https://patentgrep.com/patent/US9872816B2

## CPC

- A61K 8/0208: {Tissues; Wipes; Patches}
- A45D 34/00: Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D 40/0087: {for samples}
- A45D 44/002: {Masks for cosmetic treatment of the face}
- A61K 8/046: {Aerosols; Foams}
- A61K 8/062: {Oil-in-water emulsions}
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/671: {Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal}
- A61K 8/673: {Vitamin B group}
- A61K 8/675: {Vitamin B3 or vitamin B3 active, e.g. nicotinamide, nicotinic acid, nicotinyl aldehyde (tocopheryl nicotinate A61K8/678)}
- A61K 8/678: {Tocopherol, i.e. vitamin E}
- A61K 8/8111: {Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers}
- A61K 8/8135: {Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers, e.g. vinyl esters (polyvinylacetate)}
- A61Q 19/00: Preparations for care of the skin
- A45D 2200/1036: containing a cosmetic substance, e.g. impregnated with liquid or containing a soluble solid substance
- A61K 2800/10: General cosmetic use
- A61K 2800/30: Characterized by the absence of a particular group of ingredients
- A61K 2800/412: Microsized, i.e. having sizes between 0.1 and 100 microns
- A61K 2800/54: Polymers characterized by specific structures/properties
- A61K 2800/87: Application Devices; Containers; Packaging
- A61K 2800/884: Sequential application
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

The product of claim 1 wherein the barrier patch further comprises a WVTR from about 1 g/m2/24 h to about 500 g/m2/24 h.

### Claim 4 (depends on 3)

The product of claim 3 wherein the barrier patch comprises a WVTR from about 1 g/m2/24 h to about 250 g/m2/24 h.

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 6)

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

### Claim 8 (depends on 1)

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

### Claim 9 (depends on 1)

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.

### Claim 10 (depends on 1)

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.

### Claim 11 (depends on 1)

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.

### Claim 12 (depends on 1)

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.

### Claim 13 (depends on 1)

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

### Claim 14 (depends on 1)

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

### Claim 15 (depends on 1)

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

### Claim 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.

### Claim 17 (depends on 16)

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.

### Claim 18 (depends on 16)

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

### Claim 19 (depends on 16)

The product of claim 16 wherein the barrier patch further comprises a WVTR from about 1 g/m2/24 h to about 500 g/m2/24 h.

### Claim 20 (depends on 16)

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

### Claim 21 (depends on 16)

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

### Claim 22 (depends on 16)

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

### Claim 23 (depends on 16)

The product of claim 16 wherein the barrier patch further comprises a flexibility from about 0.009 gfcm2/cm to about 0.14 gfcm2/cm.

### Claim 24 (depends on 16)

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

### Claim 25 (depends on 24)

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.

### Claim 26 (depends on 16)

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

### Claim 27 (depends on 16)

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

### Claim 28 (depends on 21)

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