# US 10,864,157 B2 · Compositions and methods for improving the appearance of the skin

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- Number: US 10,864,157 B2
- Document ID: US10864157B2
- Status: Granted
- Kind: B2
- Application number: 15/537,122
- Filed: 2015-12-17
- Published: 2019-03-28
- Granted: 2020-12-15
- Earliest claimed: 2014-12-18
- Assignees: L'oreal
- Applicants: L'oreal
- Inventors: Anne-Laure Suzanne Bernard; Yang Deng; Hy Si Bui; Laure Daubersies; Roshanak Debeaud; Alexandra Farran
- Web page: https://patentgrep.com/patent/US10864157B2

## CPC

- A61K 8/898: containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
- A61K 8/02: characterised by special physical form
- A61K 8/19: containing inorganic ingredients
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/29: Titanium; Compounds thereof
- A61K 8/31: Hydrocarbons
- A61K 8/585: {Organosilicon compounds}
- A61K 8/8117: {Homopolymers or copolymers of aromatic olefines, e.g. polystyrene; Compositions of derivatives of such polymers}
- A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
- A61K 8/8194: {Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers}
- A61K 8/88: Polyamides
- A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K 8/90: Block copolymers (A61K8/89 takes precedence)
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- A61Q 19/00: Preparations for care of the skin
- A61Q 19/02: for chemically bleaching or whitening the skin
- A61Q 19/08: Anti-ageing preparations
- A61K 2800/262: Transparent; Translucent
- A61K 2800/43: Pigments; Dyes
- 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)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

The disclosure relates to compositions, films, and methods for improving the appearance of the skin. Compositions comprise at least one thermoplastic elastomer, at least one adhesive polymer, and at least one filler. Methods comprise applying the compositions to the skin to tighten the skin or hide skin imperfections, by forming a film on the skin.

## Claims

### Claim 1

A 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 Tg below about 0° C., and a second Tg greater than about 25° C.;
b. at least one adhesive film-forming polymer chosen from polymer particles of C1-C4 alkyl(methacrylate)polymer, stabilized in a non-aqueous dispersion; and
c. at least one filler,
wherein the ratio of the at least one thermoplastic elastomer to the at least one adhesive film-forming polymer is in the range of about 1:5 to 5:1, and
wherein the skin tightening composition forms a film having a Young Modulus greater than about 100 kPa.

### Claim 2 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one thermoplastic elastomer comprises at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene, isoprene, or mixtures thereof.

### Claim 3 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one thermoplastic elastomer is chosen from:
diblock copolymers chosen from styrene-ethylene/propylene copolymers, styrene-ethylene/butadiene copolymers, styrene-ethylene/butylene copolymers, styrene-butadiene, or styrene-isoprene copolymers;
triblock copolymers chosen from styrene-ethylene/propylene-styrene copolymers, styrene-ethylene/butadiene-styrene copolymers, copolymers of styrene-isoprene-styrene, or copolymers of styrene-butadiene-styrene; and
mixtures thereof.

### Claim 4 (depends on 1)

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

### Claim 5 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one adhesive polymer is chosen from polymer particles comprising about 80% to about 100%, by weight, of C1-C4 alkyl (meth)acrylate and of about 0% to about 20%, by weight, of ethylenically unsaturated acid monomer of C1-C4 alkyl(methacrylate) polymer in an oil dispersion.

### Claim 6 (depends on 5)

The skin tightening composition of claim 5, wherein the polymer of the particles is chosen from:
polymers consisting of at least one C1-C4 alkyl(methacrylate)polymer; and
polymers consisting essentially of a copolymer of C1-C4 (meth)acrylate and of (meth)acrylic acid or maleic anhydride.

### Claim 7 (depends on 5)

The skin tightening composition of claim 5, wherein the C1-C4 alkyl(methacrylate)polymer is chosen from methyl(meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, and tert-butyl (meth)acrylate polymers.

### Claim 8 (depends on 5)

The skin tightening composition of claim 5, wherein the oil comprises hydrocarbon based oils comprising up to 40 carbon atoms.

### Claim 9 (depends on 5)

The skin tightening composition of claim 5, wherein the polymer particles are stabilized in the oil dispersion by at least one stabilizer chosen from isobornyl acrylate homopolymers, statistical copolymers of isobornyl acrylate/methyl acrylate, statistical copolymers of isobornyl acrylate/methyl acrylate/ethyl acrylate, and statistical copolymers of isobornyl methacrylate/methyl acrylate.

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one filler is chosen from fillers having a particle size greater than about 100 nm, and/or a specific surface area greater than about 200 m2/g.

### Claim 12 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one filler is chosen from silica particles, hydrophobic silica aerogel particles, or aerogel particles of hydrophobic silica surface-modified with trimethylsilyl groups.

### Claim 13 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one filler is present in the composition in an amount ranging from about 0.1% to about 20% by weight, relative to the weight of the composition.

### Claim 14 (depends on 1)

The skin tightening composition of claim 1, further comprising at least one additional component chosen from solvents, silicone elastomers, humectants, water, and colorants.

### Claim 15 (depends on 1)

The skin tightening composition of claim 1, wherein the at least one thermoplastic elastomer, at least one adhesive polymer, and at least one filler are present in a combined amount of greater than about 10% by weight, relative to the weight of the composition.

### Claim 16 (depends on 1)

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

### Claim 17 (depends on 1)

A skin tightening film formed from the composition of claim 1, wherein the film has a Young Modulus greater than about 500 kPa.

### Claim 18

A method for improving the appearance of the skin, said method comprising forming a film on the skin by applying a 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 Tg below about 0° C., and a second Tg greater than about 25° C.;
b. at least one adhesive film-forming polymer chosen from polymer particles of C1-C4 alkyl(methacrylate)polymer, stabilized in a non-aqueous dispersion; and
c. at least one filler,
wherein the ratio of the at least one thermoplastic elastomer to the at least one adhesive film-forming polymer is in the range of about 1:5 to 5:1, and
wherein the Young Modulus of the film formed on the skin is greater than about 500 kPa.

### Claim 19 (depends on 18)

The method of claim 18, wherein the Young Modulus of the film is greater than about 1000 kPa.