KR102360478B1 - Compositions and methods for improving the appearance of the skin - Google Patents

Abstract

The present disclosure relates to compositions and methods for improving the appearance of skin. The composition comprises at least one thermoplastic elastomer, at least one tacky polymer, at least one filler, and may further comprise at least one pigment. The method includes reducing the appearance of a skin imperfection by applying the composition to the skin to form a film on the skin.

Description

Compositions and methods for improving the appearance of the skin {COMPOSITIONS AND METHODS FOR IMPROVING THE APPEARANCE OF THE SKIN}

The present disclosure relates to compositions and methods for improving the appearance of skin.

When considering cosmetics, the majority of consumers wish to improve the appearance or hide skin imperfections such as acne, scars, enlarged pores, dark spots, uneven pigmentation, and the like. Typically, consumers also desire a lasting cosmetic formulation on the skin that will not be inadvertently removed while revealing skin imperfections until the consumer wants it removed.

Although traditional cosmetic formulations, such as foundation or concealer type makeup products, can improve the appearance of some skin imperfections, such formulations cannot satisfactorily reduce the appearance of more prominent skin imperfections, such as scars. Moreover, such formulations may not have the lasting power needed to last as long as the user would like to leave the blemishes covered, for example, the foundation or concealer may come off if the user sweats.

As an alternative to these topical cosmetic formulations, more invasive techniques such as surgery, fillers or laser dermabrasion can provide longer lasting effects and treat visible blemishes. However, the majority of consumers cannot or do not want to afford these extreme cosmetic treatments.

Therefore, there is a desire by consumers for topical cosmetic formulations that are long lasting and effective in reducing the appearance of skin imperfections.

The present disclosure relates to long lasting compositions and methods for improving the appearance of the skin.

In one embodiment, the present disclosure comprises at least one thermoplastic elastomer, at least one tacky polymer, at least one filler, and at least one colorant, wherein the at least one tacky polymer is the weight of the composition. present in an amount of about 10% by weight or less, wherein the at least one thermoplastic elastomer has at least two glass transition temperatures (T _g ).

In a further embodiment, the present disclosure comprises at least one thermoplastic elastomer, at least one tacky polymer, at least one filler, and at least one colorant, wherein the at least one tacky polymer is the weight of the composition. and wherein the at least one thermoplastic elastomer has at least two glass transition temperatures (T _g ). will be.

In yet a further embodiment, the present disclosure comprises at least one thermoplastic elastomer, at least one tacky polymer, at least one filler, and at least one colorant, wherein the at least one tacky polymer comprises a composition A long-lasting film on the skin by applying a composition onto the skin, wherein the composition is present in an amount of about 10% by weight or less based on the weight of the at least one thermoplastic elastomer and has at least two glass transition temperatures (T _g ). It relates to a method for improving the appearance of the skin, comprising forming a.

In various embodiments, the present disclosure relates to compositions for improving the appearance of skin. According to various embodiments, the present disclosure relates to a composition comprising at least one thermoplastic elastomer, at least one tacky polymer, at least one filler, and at least one pigment.

The composition may be effective in reducing the appearance of skin imperfections. In various embodiments, the composition can obscure or hide skin imperfections by forming a film on the skin. In a further embodiment, the film may be long lasting.

As used herein, the term “long lasting” means that after the film is formed on the skin, the film remains on the skin for at least about 6 hours, such as at least about 12 hours, at least about 24 hours, at least about 48 hours, unless the user intentionally removes it. hours, or at least about 72 hours.

As used herein, the term “lasting” is intended to convey that the film is substantially intact in situ on the skin.

As used herein, the term "rapidly forms" means that after the composition is applied to the skin, a film is formed in less than about 30 minutes, such as less than about 20 minutes, less than about 15 minutes, or less than about 10 minutes.

As used herein with reference to a skin imperfection, the term “fuzzy” means that the visual appearance of the imperfection is less conspicuous.

As used herein with reference to the appearance of a skin imperfection, the term “reduce” means that the skin imperfection is masked or obscured so that the blemish is less noticeable.

As used herein, the term “soft focus” means that the visual appearance of the skin is more uniform and matte so that it can obscure or hide skin imperfections.

As used herein, "permanent" means that the film will not be easily rubbed off or removed by sweat, water, makeup products, lotions, etc., so that the film will remain substantially intact until removed by the user.

composition

According to various embodiments, the composition comprises at least one thermoplastic elastomer, at least one tacky polymer, and at least one filler, which together form an association, and further comprises at least one colorant. can Additional optional ingredients such as solvents, silicone elastomers, wetting agents, and water may also be included in the composition.

Thermoplastic Elastomer

According to various non-limiting exemplary embodiments, the at least one thermoplastic elastomer may be selected from block copolymers having at least two glass transition temperatures (“T _g ”). The block copolymer may be a hydrocarbon that is soluble or dispersible in the oil phase. In various embodiments, the at least one thermoplastic elastomer may be amorphous, crystalline, or semi-crystalline.

A block copolymer comprises at least one hard segment attached to at least one soft segment. The hard segments of the thermoplastic elastomer may include vinyl monomers in varying amounts. Examples of suitable vinyl monomers include, but are not limited to, styrene, methacrylates, acrylates, vinyl esters, vinyl ethers, vinyl acetates, and the like. The soft segments may comprise olefin polymers and/or copolymers, which may be saturated, unsaturated, or combinations thereof. Examples of olefin copolymers may include ethylene/propylene copolymers, ethylene/butylene copolymers, propylene/butylene copolymers, polybutylene, polyisoprene, polymers of hydrogenated butane and isoprene, and mixtures thereof, It is not limited to these.

For example, the at least one thermoplastic elastomer may be a diblock, triblock, multiblock, radial, and star copolymers. Non-limiting examples of unsaturated hydrocarbon monomers having from 2 to 5 unsaturated carbon atoms include ethylene, propylene, butadiene, isoprene or pentadiene. In various non-limiting exemplary embodiments, the block copolymer may be selected from those comprising at least one block of styrene and at least one block comprising units selected from butadiene, ethylene, propylene, butylene, isoprene, or mixtures thereof. can

Optionally, the block copolymer can be hydrogenated to reduce the ethylenic unsaturation remaining after polymerization of the monomers. For example, the hydrocarbon-based block copolymer may be a hydrogenated copolymer optionally comprising a styrene block and an ethylene block/C ₃ -C ₄ alkylene or isoprene block. In one exemplary embodiment, the block copolymer is an amorphous hydrocarbon block copolymer, e.g., an amorphous hydrocarbon block copolymer of styrene and a hydrocarbon monomer containing 2 to 5 carbon atoms and comprising 1 or 2 ethylenic unsaturation. .

The amorphous thermoplastic elastomer comprises at least one first block having a T _g of less than about 20 °C, such as less than about 0 °C, less than about -20 °C, or less than about -40 °C. The T _g of the first block may range, for example, from about -150°C to about 20°C, such as from about -100°C to about 0°C. The block copolymer also has at least one second block having a T _{g greater} than about 25°C, such as greater than about 50°C, greater than about 75°C, greater than about 100°C, or greater than about 150°C. includes The T _g of the second block can range, for example, from about 25°C to about 150°C, such as from about 50°C to about 125°C, from about 60°C to about 120°C, or from about 70°C to about 100°C.

Non-limiting exemplary amorphous diblock copolymers can be selected from styrene-ethylene/propylene copolymers, styrene-ethylene/butadiene copolymers, styrene-ethylene/butylene copolymers, styrene-butadiene, or styrene-isoprene copolymers. The diblock copolymer is sold, for example, by Kraton Polymers under the trade name Kraton® G1701E.

Non-limiting exemplary amorphous triblock copolymers include styrene-ethylene/propylene-styrene copolymers, styrene-ethylene/butadiene-styrene copolymers, styrene-isoprene-styrene copolymers, and styrene-butadiene-styrene copolymers such as Kraton Polymer. Kraton® G1650, Kraton® D1101, Kraton® D1102, Kraton® D1160 by In one exemplary embodiment, the thermoplastic elastomer is a mixture of a triblock copolymer of styrene-butylene/ethylene-styrene and a diblock copolymer of styrene-ethylene/butylene, such as Kraton® G1657M by Kraton Polymers. It may be sold under a product name. As a further example, the thermoplastic elastomer may be a mixture of a hydrogenated triblock copolymer of styrene-butylene/ethylene-styrene and a hydrogenated star polymer of ethylene-propylene-styrene, which mixture is particularly a mixture in isododecane in another oil. can be Such mixtures are sold, for example, under the trade names VERSAGEL® M5960 and VERSAGEL® M5670 by Penreco.

In a further exemplary embodiment, the at least one thermoplastic elastomer is selected from semi-crystalline block copolymers having at least two glass transition temperatures. The semi-crystalline block copolymer may comprise at least one first block having a T _g greater than about 40°C, such as greater than about 75°C, or greater than 100°C. The T _g of the first block can be, for example, in the range of about 40°C to about 150°C, such as about 50°C to about 100°C. The semi-crystalline block copolymer also includes at least one second block having a T _g of less than about -50 °C, such as less than about -75 °C, less than about -100 °C, or less than about -150 °C. The T _g of the second block may range, for example, from about -150°C to about -50°C, such as from about -100°C to about -50°C.

By way of non-limiting example, the semi-crystalline thermoplastic elastomer may be selected from copolymers containing polyamides and/or polysilicones and/or polyurethanes, such as polysilicon-polyamides or polysilicon-polyurethanes. For example, the semi-crystalline thermoplastic elastomer can be selected from polyorganosiloxane-containing polymers comprising at least one moiety corresponding to formula (I):

<Formula I>

In the above formula:

1) R ¹ , R ² , R ³ and R ⁴ , which may be the same or different, are (a) it is possible to contain one or more oxygen, sulfur and/or nitrogen atoms in their chain, partially with fluorine atoms a linear, branched or cyclic, saturated or unsaturated C ₁ to C ₄₀ hydrocarbon-based group possibly substituted with or fully substituted with (b) C ₆ to C ₁₀ aryl optionally substituted with one or more C ₁ to C ₄ alkyl groups group, (c) a group selected from polyorganosiloxane chains capable of containing one or more oxygen, sulfur and/or nitrogen atoms;

2) X, which may be the same or different, represents a linear or branched C ₁ to C ₃₀ alkylenediyl group capable of containing one or more oxygen and/or nitrogen atoms in its chain;

3) Y optionally contains one or more oxygen, sulfur and/or nitrogen atoms and/or the following atoms or groups of atoms: fluorine, hydroxyl, C ₃ to C ₈ cycloalkyl, C ₁ to C ₄₀ alkyl, C ₅ Saturated or unsaturated C to C ₁₀ aryl, phenyl optionally substituted with 1 to 3 C ₁ to C ₃ alkyl, C ₁ to C ₃ hydroxyalkyl, and C ₁ to C ₆ aminoalkyl groups optionally substituted ₁ to C ₅₀ linear or branched divalent alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene group;

4) G, which may be the same or different, represents a group selected from ester, amide, sulfonamide, carbamate, thiocarbamate, urea, thiourea groups, and combinations thereof;

5) m is an integer ranging from 1 to 1,000, preferably from 1 to 700, more preferably from 6 to 200;

6) n is an integer ranging from 2 to 500, preferably from 2 to 200;

In a further embodiment, the semi-crystalline thermoplastic elastomer may be selected from copolymers containing at least one moiety corresponding to formula (II):

<Formula II>

In the above formula:

R ¹ and R ³ , which may be the same or different, are as defined above for formula I,

R ⁷ represents a group as defined above for R ¹ and R ³ or represents a group of the formula —XGR ⁹ , wherein X and G are as defined above for formula I and R ⁹ is a hydrogen atom or phenyl optionally comprising in its chain one or more atoms selected from O, S and N, optionally substituted with one or more fluorine atoms and/or one or more hydroxyl groups, or one or more C ₁ to C ₄ alkyl groups represents a linear, branched or cyclic, saturated or unsaturated C ₁ to C ₅₀ hydrocarbon-based group optionally substituted with a group,

R ⁸ represents a group of the formula -XGR ⁹ , wherein X, G and R ⁹ are as defined above,

m ₁ is an integer ranging from 1 to 998,

m ₂ is an integer ranging from 2 to 500.

In yet a further embodiment, a block copolymer comprising a plurality of different moieties of formula (I), and/or a plurality of different moieties of formula (II), for example the groups R ¹ , R ² in either moiety, It is also possible to use polymers in which at least one of R ³ , R ⁴ , X, G, Y, m, and n differs. It is also possible to use block copolymers comprising at least one moiety of formula (I) and at least one moiety of formula (II), wherein the moiety of formula (I) and moiety of formula (II) may be identical to or different from each other. have.

For example, in at least one embodiment, the semi-crystalline thermoplastic elastomer can be selected from polyamide copolymers containing at least one moiety corresponding to Formula III and at least one moiety corresponding to Formula IV have:

<Formula III>

<Formula IV>

In the above formula:

(a) R ¹ , R ² , R ³ , and R ⁴ are the same or different and can be selected from the group consisting of methyl, ethyl, propyl, isopropyl, siloxane chain, and phenyl;

(b) X is a straight or branched chain alkylene having 1 to 30 carbons;

(c) Y is selected from the group consisting of straight or branched chain alkylene having 1 to 40 carbons;

(d) m is a number from 1 to 700;

(e) n is a number from 1 to 500;

By way of example only, the semi-crystalline thermoplastic elastomer may be selected from Nylon 6, Nylon 66, and Nylon-611/dimethicone copolymers.

The thermoplastic elastomer is present in an amount of about 25% by weight or less by weight of the composition, such as from about 5% to about 20% by weight, from about 6% to about 18% by weight, from about 7% to about 16% by weight, about 8% by weight. It may be present in the composition in an amount ranging from weight percent to about 15 weight percent, from about 9 weight percent to about 14 weight percent.

sticky polymer

The composition according to the present disclosure further comprises at least one tacky film-forming polymer. In various embodiments, the at least one tacky polymer may be amorphous, crystalline, or semi-crystalline.

In various embodiments, the tacky polymer can have a T _g greater than about 25° C., such as greater than about 50° C., greater than about 75° C., or greater than about 100° C. according to various embodiments. In further embodiments, the tacky polymer can have a T _g of less than about 25 °C, such as less than about 0 °C, less than about -25 °C, or less than about -50 °C.

The at least one tacky polymer is present in an amount of about 10% or less, such as about 9% or less, about 8% or less, about 7% or less, about 6% or less, about 5% or less, about 5% or less by weight of the composition. It may be present in the composition in an amount of 4 wt% or less, about 3 wt% or less, about 2 wt% or less, about 1 wt% or less, or about 0.5 wt% or less. For example, the at least one tacky polymer may comprise from about 0.5% to about 10%, from about 1% to about 8%, from about 1.5% to about 6%, or about 2% by weight by weight of the composition. % to about 4% by weight. In one embodiment, the at least one tacky polymer is present in an amount ranging from about 1% to about 3%.

Tacky polymers having a T _g greater than about 25° C. include, but are not limited to, polymer particles of a C ₁ -C ₄ alkyl (methacrylate) polymer stabilized in a non-aqueous dispersion, referred to herein as “oil dispersions” for ease of reference. By way of example, these dispersions are, for example, those described in WO2015/091513, which is incorporated herein by reference.

For example, C ₁ -C ₄ alkyl (meth)acrylate monomers are methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n- butyl (meth)acrylate and tert-butyl (meth)acrylate. For example, the polymer may be a methyl acrylate and/or ethyl acrylate polymer.

The polymer may in particular contain at least one carboxylic acid, phosphoric acid or sulfonic acid function, such as crotonic acid, itaconic acid, fumaric acid, maleic acid, maleic anhydride, styrenesulfonic acid, vinylbenzoic acid, vinylphosphoric acid, acrylic acid, methacrylic acid, acrylamidopropane ethylenically unsaturated acid monomers or anhydrides thereof, selected from ethylenically unsaturated acid monomers including sulfonic acid or acrylamidoglycolic acid, and salts thereof. For example, the ethylenically unsaturated acid monomer can be selected from (meth)acrylic acid, maleic acid, and maleic anhydride.

Salts include salts of alkali metals such as sodium or potassium; salts of alkaline earth metals such as calcium, magnesium or strontium; salts of metals such as zinc, aluminum, manganese or copper; ammonium salts of the formula NH ⁺ ; quaternary ammonium salts; Salts of organic amines, for example methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2-hydroxyethyl)amine salt of; lysine or arginine salts.

Accordingly, the polymer particles of the oil dispersion comprise from about 80% to about 100% by weight of a C ₁ -C ₄ alkyl (meth)acrylate and from about 0% to about 20% by weight of an ethylenically unsaturated acid, relative to the total weight of the polymer. may comprise or consist essentially of monomers. According to one exemplary embodiment, the polymer consists essentially of a polymer of one or more C ₁ -C ₄ alkyl (meth)acrylate monomers. According to another exemplary embodiment, the polymer consists essentially of a copolymer of C ₁ -C ₄ (meth)acrylate and (meth)acrylic acid or maleic anhydride.

By way of non-limiting example only, the polymer particles of the oil dispersion, which may optionally be crosslinked or alternatively not crosslinked, include methyl acrylate homopolymer, ethyl acrylate homopolymer, methyl acrylate/ethyl acrylate copolymer, methyl Acrylate/ethyl acrylate/acrylic acid copolymer, methyl acrylate/ethyl acrylate/maleic anhydride copolymer, methyl acrylate/acrylic acid copolymer, ethyl acrylate/acrylic acid copolymer, methyl acrylate/maleic anhydride copolymer , and ethyl acrylate/maleic anhydride copolymers.

The polymer particles of the dispersion may have a number average molecular weight ranging from about 2000 to about 10,000,000, such as from about 150,000 to about 500,000. The polymer particles comprise from about 20% to about 60% by weight, such as from about 21% to about 58.5% by weight, from about 30% to about 50% by weight, from about 35% to about 45% by weight relative to the total weight of the oil dispersion. % by weight, or in an amount ranging from about 36% to about 42% by weight in the oil dispersion.

Stabilizers of the oil dispersion include isobornyl (meth)acrylate homopolymer and greater than about 4, for example greater than about 4.5, or greater than about 5 isobornyl (meth)acrylate/C ₁ -C ₄ alkyl (meth ) an isobornyl (meth)acrylate polymer selected from statistical copolymers of isobornyl (meth)acrylate and C ₁ -C ₄ alkyl (meth)acrylate present in a weight ratio of acrylate. For example, the weight ratio may range from about 4.5 to about 19, such as from about 5 to about 19, or from about 5 to about 12.

By way of example only, stabilizers include isobornyl acrylate homopolymers, statistical copolymers of isobornyl acrylate/methyl acrylate, statistical copolymers of isobornyl acrylate/methyl acrylate/ethyl acrylate, and isobornyl acrylates. and statistical copolymers of bornyl methacrylate/methyl acrylate.

In various embodiments, the stabilizer can have a number average molecular weight in the range of from about 10,000 to about 400,000, such as from about 20,000 to about 200,000.

In various embodiments, the combination of stabilizer + polymer particles present in the oil dispersion comprises from about 10% to about 50% by weight, such as from about 15% to about 30% by weight, relative to the total weight of the combination of stabilizer + polymer particles. polymerized isobornyl (meth)acrylate, and from about 50% to about 90% by weight, such as from about 70% to about 85% by weight of a polymerized C ₁ -C ₄ alkyl (meth)acrylate.

The oil medium of the oil dispersion comprises a hydrocarbon-based oil. Hydrocarbon-based oils are oils that are liquid at room temperature (25° C.). The term “hydrocarbon-based oil” means an oil that is formed essentially from or even consists of carbon and hydrogen atoms, and optionally oxygen and nitrogen atoms, and does not contain any silicon or fluorine atoms. It may contain alcohol, ester, ether, carboxylic acid, amine and/or amide groups.

Non-limiting exemplary embodiments of hydrocarbon-based oil media of oil dispersions include hydrocarbon-based oils containing up to about 40 carbon atoms, such as 8 to 16 or 8 to 14 carbon atoms. Optionally, the hydrocarbon-based oil is non-polar. For example, the hydrocarbon-based oil may be selected from isododecane.

Oil dispersions can be prepared, for example, as described in WO2015/091513.

Alternatively, the tacky polymer may be selected from an aliphatic or cycloaliphatic hydrocarbon polymer selected from aliphatic or cycloaliphatic hydrocarbon resins having a T _g greater than about 25°C. By "aliphatic or cycloaliphatic hydrocarbon resin" is meant a polymer or copolymer of olefins, or a polymer or copolymer of partially or fully hydrogenated aromatic hydrocarbon monomers. For example, the tacky polymer may be aliphatic hydrocarbon resin, aromatic modified aliphatic hydrocarbon resin, hydrogenated polycyclopentadiene resin, polycyclopentadiene resin, gum rosin, gum rosin ester, wood rosin, wood rosin ester, tall oil rosin, tall oil Rosin esters, polyterpenes, aromatic modified polyterpenes, terpene phenols, aromatic modified hydrogenated polycyclopentadiene resins, hydrogenated aliphatic resins, hydrogenated aliphatic aromatic resins, hydrogenated terpenes and modified terpenes, hydrogenated rosin acids, hydrogenated rosin esters, polyisoprenes, partial or fully hydrogenated polyisoprene, polybutenediene, partially or fully hydrogenated polybutenediene, and hydrogenated styrene/methyl styrene/indene copolymers. In various embodiments, a hydrogenated indene/methylstyrene/styrene copolymer sold under the trade name REGALITE® by Eastman Chemical may be selected. For example, Regalit® R1090, Regalit® R1100, Regalit® S1100, Regalit® R7100, Regalit® R1010, Regalit® R112, or Regalit® S5100 may be selected. As a further example, those sold under the trade names ARKON® P-90, ARKON® P-100, and ARKON® P-115 by Arakawa may be selected.

In a further embodiment, the tacky polymer may have a T _g of less than about 25°C. For example, the at least one tacky polymer may be selected from a polyacid, such as a hyperbranched polyacid. Polyacids useful in accordance with various embodiments of the present disclosure can be found in US Pat. Nos. 7,582,719 and US2013/0236409, both of which are incorporated herein by reference.

The term "hyperbranched polyacid" refers to the fact that the functional groups of the hyperbranched functional polymer are substituted with carboxylic acid groups. Useful unsaturated functionalizing compounds include, but are not limited to, carboxylic acids, carboxylic acid esters, amides, ethers, amines, phosphate esters, silanes, and alcohols. Examples of such carboxylic acids include, but are not limited to, 5-hexenoic acid, 6-heptenoic acid, 10-undecylenic acid, 9-decenoic acid, oleic acid, and erucic acid. Also esters of these acids with straight or branched chain alcohols having from about 1 to about 10 carbon atoms, as well as fatty acid moieties such as tall oil, fish oil, soybean oil, linseed oil, cottonseed oil and partial hydrogenation products of these oils, olefinic Triglycerides containing unsaturation are useful. Other useful substances include olefinic alcohols such as allyl alcohol, 9-decen-1-ol, 10-undecylenyl alcohol, oleyl alcohol, erucyl alcohol, acetic or formic acid esters of these alcohols, C1-C4 alkyls of these alcohols ether derivatives and formamides or acetamides of unsaturated amines such as oleylamine, erucylamine, 10-undecylenylamine and allylamine.

In various embodiments, hyperbranched polyacid compounds useful in accordance with the present disclosure may have at least two carboxyl groups. In various embodiments, the hyperbranched polyacid has a carboxyl number of at least 3, such as at least 10, at least 50, at least 100, or at least about 150. According to various embodiments, the hyperbranched polyacid has a carboxyl number in the range of about 50 to about 250, such as about 75 to about 225, about 100 to about 200, or about 125 to 175. In one embodiment, the hyperbranched polyacid has a carboxyl number in the range of 90 to 150.

In various embodiments, the at least one hyperbranched acid compound has a molecular weight (Mw) in the range of from about 500 to about 25,000, such as from about 800 to about 10,000, or from about 1000 to about 8000. In one embodiment, the hyperbranched polyacid has a Mw ranging from about 1000 to about 6000.

In various embodiments, the at least one hyperbranched polyacid compound has a viscosity at 210° F. in the range of 0.01 Pas to 10 Pas, such as 0.02 to 7 Pas, or 0.03 to 6 Pas, all ranges and subranges therebetween. is included Viscosity is determined at 210° F. using a Brookfield viscometer according to ASTMD-3236MOD method. In various embodiments, the at least one hyperbranched acid compound has an acid number ranging from about 20 to about 400 mg/KOH, such as from about 30 to about 300 mg/KOH, or from about 50 to about 100 mg/KOH.

In one exemplary embodiment, the at least one tacky polymer is a polyacid selected from C ₃₀₊ olefin/undecylenic acid copolymers, such as C ₂₈ -C ₅₂ olefin/undecylenic acid copolymers, such as New Face Technologies® It is available from New Phase Technologies under the trade name Performa V6112™.

Another further example of an optional tacky polymer is an acrylic film former. As used herein, "acrylic film former" is an agent that forms a film and includes polymers based on one or more (meth)acrylic acid (and corresponding (meth)acrylate) monomers or similar monomers.

Non-limiting examples of such film formers include copolymers containing at least one nonpolar monomer, at least one olefinically unsaturated monomer, and at least one vinylic functionalized monomer.

As the non-polar monomer, an acrylic monomer comprising acrylic acid and methacrylic acid esters having an alkyl group composed of 4 to 14 C atoms, preferably 4 to 9 C atoms can be selected. Examples of monomers of this kind are n-butyl acrylate, n-butyl methacrylate, n-pentyl acrylate, n-pentyl methacrylate, n-amyl acrylate, n-hexyl acrylate, hexyl methacrylate, n-heptyl acrylate, n-octyl acrylate, n-octyl methacrylate, n-nonyl acrylate, isobutyl acrylate, isooctyl acrylate, isooctyl methacrylate, and their branched isomers, such as 2 -Ethylhexyl acrylate, 2-ethylhexyl methacrylate.

As the olefinically unsaturated monomer, it is possible to use a monomer having a functional group selected from hydroxyl, carboxyl, sulfonic acid group, phosphonic acid group, acid anhydride, epoxide, and amine. Examples of the olefinically unsaturated monomer include acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, crotonic acid, aconitic acid, dimethylacrylic acid, beta-acryloyloxypropionic acid, trichloracrylic acid, vinylacetic acid, vinylphosphonic acid, Itaconic acid, maleic anhydride, hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, 6-hydroxyhexyl methacrylate, allyl alcohol, glycidyl acrylate , glycidyl methacrylate.

Exemplary monomers of vinyl-based functionalized compounds include monomers copolymerizable with any one or both of the monomers discussed above, such as methyl acrylate, ethyl acrylate, propyl acrylate, methyl methacrylate, ethyl methacrylate, benzyl acrylate, benzyl methacrylate, sec-butyl acrylate, tert-butyl acrylate, phenyl acrylate, phenyl methacrylate, isobornyl acrylate, isobornyl methacrylate, tert- Butylphenyl acrylate, tert-butylphenyl methacrylate, dodecyl methacrylate, isodecyl acrylate, lauryl acrylate, n-undecyl acrylate, stearyl acrylate, tridecyl acrylate, behenyl acrylate , cyclohexyl methacrylate, cyclopentyl methacrylate, phenoxyethyl acrylate, phenoxyethyl methacrylate, 2-butoxyethyl methacrylate, 2-butoxyethyl acrylate, 3,3,5-trimethyl Cyclohexyl acrylate, 3,5-dimethyladamantyl acrylate, 4-cumylphenyl methacrylate, cyanoethyl acrylate, cyanoethyl methacrylate, 4-biphenyl acrylate, 4-biphenyl methacrylate Late, 2-naphthyl acrylate, 2-naphthyl methacrylate, tetrahydrofurfuryl acrylate, diethylaminoethyl acrylate, diethylaminoethyl methacrylate, dimethylaminoethyl acrylate, dimethylaminoethyl methacrylic rate, 2-butoxyethyl acrylate, 2-butoxyethyl methacrylate, methyl 3-methoxyacrylate, 3-methoxybutyl acrylate, phenoxyethyl acrylate, phenoxyethyl methacrylate, 2- Phenoxyethyl methacrylate, butyldiglycol methacrylate, ethylene glycol acrylate, ethylene glycol monomethyl acrylate, methoxy-polyethylene glycol methacrylate 350, methoxy-polyethylene glycol methacrylate 500, propylene glycol monometh acrylate, butoxydiethylene glycol methacrylate, ethoxytriethylene glycol methacrylate, octafluoropentyl acrylate, octafluoropentyl Methacrylate, 2,2,2-trifluoroethyl methacrylate, 1,1,1,3,3,3-hexafluoroisopropyl acrylate, 1,1,1,3,3,3- Hexafluoroisopropyl methacrylate, 2,2,3,3,3-pentafluoropropyl methacrylate, 2,2,3,4,4,4-hexafluorobutyl methacrylate, 2,2 ,3,3,4,4,4-heptafluorobutyl acrylate, 2,2,3,3,4,4,4-heptafluorobutyl methacrylate, 2,2,3,3,4, 4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyl methacrylate, dimethylaminopropylacrylamide, dimethylaminopropylmethacrylamide, N-(1-methylundecyl) )acrylamide, N-(n-butoxymethyl)acrylamide, N-(butoxymethyl)methacrylamide, N-(ethoxymethyl)acrylamide, N-(n-octadecyl)acrylamide, and also N,N-dialkyl-substituted amides such as N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N-benzylacrylamide, N-isopropylacrylamide, N-tert-butylacrylamide, N -tert-octylacrylamide, N-methylolacrylamide, N-methylolmethacrylamide, acrylonitrile, methacrylonitrile, vinyl ether, such as vinyl methyl ether, ethyl vinyl ether, vinyl isobutyl ether, vinyl ester , such as vinyl acetate, vinyl chloride, vinyl halide, vinylidene chloride, vinylidene halide, vinylpyridine, 4-vinylpyridine, N-vinylphthalimide, N-vinyllactam, N-vinylpyrrolidone, styrene, a- and p-methylstyrene, a-butylstyrene, 4-n-butylstyrene, 4-n-decylstyrene, 3,4-dimethoxystyrene, macromonomers such as 2-polystyrene-ethyl methacrylate (4000-13,000 g /mol molecular weight, Mw), poly(methyl methacrylate)ethyl methacrylate (Mw from 2000 to 8000 g/mol).

Examples of acrylic film formers include copolymers of acrylic acid, isobutyl acrylate and isobornyl acetate, such as Pseudoblock (Chimex) and Synamer-3 sold under the trade names. that may be mentioned. In both of these commercial products, the copolymer is present in a 1:1 ratio with the solvent (50% solids content). Another exemplary film former is poly(isobornyl methacrylate-8 co-isobornyl acrylate-co-isobutyl acrylate-co) as 50% active in 50% octyldodecyl neopentanoate. -acrylic acid) (Mexomere PAZ from Chimex).

filler

A composition according to the present disclosure comprises at least one filler. Fillers can be in any shape and have mineral or organic properties. In various embodiments, the filler may have a particle size greater than about 100 nm and/or a specific surface area greater than about 200 m ² /g.

By way of non-limiting example, fillers include talc, mica, silica, silica surface treated with a hydrophobic agent, fumed silica, kaolin, polyamide (Nylon®) powder (e.g., Orgasol from Atochem) ®), polyurethane powder, poly-β-alanine powder and polyethylene powder, tetrafluoroethylene polymer (Teflon®) powder, lauroyllysine, starch, boron nitride, hollow polymer microspheres such as polyvinylidene Chloride/acrylonitrile microspheres such as Expancel® (Nobel Industrie) or acrylic acid copolymer microspheres (Polytrap® from Dow Corning) and silicone resin microbeads ( For example, Tospearls® from Toshiba), elastomeric polyorganosiloxane particles, precipitated calcium carbonate, magnesium carbonate, magnesium hydrogen carbonate, hydroxyapatite, hollow silica microspheres (Maprecos) of Silica Beads®), glass or ceramic microcapsules, and metallic soaps derived from organic carboxylic acids containing from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, for example zinc stearate, magnesium stearate or lithium stearate, zinc laurate or magnesium myristate.

In at least certain embodiments, the at least one filler may be selected from hydrophobic silica airgel particles. Silica airgel is a porous material obtained (by drying) by replacing the liquid component of silica gel with air. Hydrophobic silica airgel particles useful in accordance with embodiments of the present disclosure include Silylated Silica (INCI Name: Silica Silylate) airgel particles. The preparation of hydrophobic silica airgel particles surface-modified by silylation is described in greater detail in US Pat. No. 7,470,725, which is incorporated herein by reference.

In various embodiments, airgel particles of hydrophobic silica surface-modified with trimethylsilyl groups may be selected. For example, the airgel sold under the trade name VM-2260® by the company Dow Corning, whose particles have an average size of about 1000 micrometers and a specific surface area per unit mass in the range of 600 to 800 m ² /g, or An airgel sold under the trade name VM-2270® by the company Dow Corning may be selected, wherein the particles have an average size in the range of 5 to 15 micrometers and a specific surface area per unit mass in the range of 600 to 800 m ² /g. In another embodiment, Airgel TLD 201®, Airgel OGD 201®, and Airgel TLD 203®, CAB-O-SIL TS-530, CAB-O-SIL TS-610 by Cabot, Airgels sold under the trade names CAB-O-SIL TS-720, Enova Aerogel MT 1100®, and Enova Airgel MT 1200® can be selected.

Optionally, a mixture of fillers may be present in the composition according to the present disclosure. For example, a mixture of different airgel particles, or a mixture of airgel and a different type of filler can be used.

The at least one filler may be present in an amount of from about 0.1% to about 20% by weight, such as from about 0.2% to about 15% by weight, from about 0.5% to about 10% by weight, or from about 1% by weight relative to the total weight of the composition. to about 6% by weight. In at least certain exemplary embodiments, the filler is present in an amount of less than about 5% by weight, such as less than about 4% by weight, based on the total weight of the composition. In one embodiment, the filler is present in an amount of up to about 3% by weight relative to the total weight of the composition.

coloring agent

The composition according to the present disclosure may further comprise at least one colorant. In various embodiments, the at least one colorant may be selected from dyes, pigments, and nacres.

The at least one colorant may be selected, for example, from dyes. Non-limiting examples of dyes include Sudan Red, D & C Red 17, D & C Green 6, β-Carotene, Soybean Oil, Sudan Brown, D & C Yellow 11, D & C Violet 2, D & C Orange 5, Quinoline Yellow and annatto.

In various embodiments, the at least one colorant may be selected from pigments. As used herein, the term “pigment” is intended to mean a white or colored mineral or organic particle that is insoluble in the composition in which it is present and has the purpose of coloring and/or opacifying the resulting film.

For example, inorganic pigments that can be used include titanium oxide, zirconium oxide, cerium oxide, zinc oxide, iron oxide, chromium oxide, ferric blue, manganese violet, ultramarine blue, and Contains chromium hydrate. For example, the pigment may be selected from titanium dioxide and red, black, and/or yellow iron oxide, as well as mixtures thereof.

In a further embodiment, pigments having a structure that can be, for example, the type of silica microspheres containing iron oxide can be used. An example of a pigment having such a structure is the product sold under the reference number PC Ball PC-LL-100 P by Miyoshi, which consists of silica microspheres containing yellow iron oxide.

By way of further example, the organic pigments usable are nitroso, nitro, azo, xanthene, pyrene, quinoline, anthraquinone, triphenylmethane, fluoran, phthalocyanine, metal complex, isoindolinone, isoindoline, quina cridone, perinone, perylene, diketopyrrolopyrrole, indigo, thioindigo, dioxazine, triphenylmethane and quinophthalone compounds. For example, the organic pigments are carmine lake, carbon black, aniline black, azo yellow, quinacridone, phthalocyanine blue, in the Color Index with reference numbers CI 42090, 69800, 69825, 73000, 74100 and Blue pigments classified as 74160, yellow pigments classified as reference numbers CI 11680, 11710, 15985, 19140, 20040, 21100, 21108, 47000 and 47005 in the color index, as reference numbers CI 61565, 61570 and 74260 in the color index Green pigments, orange pigments classified under the reference numbers CI 11725, 15510, 45370 and 71105 in the color index, reference numbers CI 12085, 12120, 12370, 12420, 12490, 14700, 15525, 15580, 15620, 15630, 15800, from red pigments classified as 15850, 15865, 15880, 17200, 26100, 45380, 45410, 58000, 73360, 73915 and 75470, and pigments obtained by oxidative polymerization of indole or phenol derivatives as described in patent FR 2 679 771 can be selected.

The mother-of-pearl is a white pearlescent pigment, such as mica coated with titanium or bismuth oxychloride, a colored pearlescent pigment, such as titanium mica with iron oxide, in particular titanium mica with ferric blue or chromium oxide, organics of the type mentioned above. titanium mica with pigments, and pearlescent pigments based on bismuth oxychloride.

The one or more colorants may be present in about 5% or less by weight, such as about 4.5% or less, about 4% or less, about 3.5% or less, about 3% or less, about 2.5% or less, or about 2% by weight by weight of the composition. % or less, about 1.5 wt% or less, about 1 wt% or less, about 0.75 wt% or less, about 0.5 wt% or less, about 0.25 wt% or less, about 0.2 wt% or less, or about 0.1 wt% or less may be optionally included.

It should be understood that the greater the amount of colorant added, the greater the effectiveness of the film on the skin for hiding skin imperfections such as pores, pimples, dark spots, and the like. Accordingly, one of ordinary skill in the art will be able to select an appropriate amount of colorant for the composition, keeping in mind the intended use of the final formulation.

additional ingredients

Compositions according to the present disclosure may optionally further comprise additional components such as solvents, silicone elastomers, wetting agents, and water.

menstruum

The composition may include at least one solvent. Optionally, the composition may comprise at least one solvent having a vapor pressure of greater than about 100 Pa, such as greater than about 500 Pa, or greater than about 1000 Pa, at room temperature (25° C.). In various embodiments, the composition is free or substantially free of a solvent having a vapor pressure of less than about 25 Pa at room temperature (25° C.). In a further embodiment, the composition comprises at least one solvent having a vapor pressure of greater than about 100 Pa, such as greater than 500 Pa, or greater than 1000 Pa, at room temperature (25°C), and less than about 100 Pa at room temperature (25°C), such as at least one solvent having a vapor pressure of less than about 50 Pa, or less than about 25 Pa.

In various embodiments, the composition comprises at least one volatile organic solvent. The volatile organic solvent may be selected, for example, from volatile hydrocarbon-based oils and volatile silicone oils.

For example, volatile hydrocarbon oils include those having 8 to 16 carbon atoms and mixtures thereof, such as branched C ₈ to C ₁₆ alkanes and C ₈ to C ₁₆ isoalkanes (also called isoparaffins), isododecane, iso decane, isohexadecane. For example, the at least one solvent may be an oil sold under the trade names Isopar® or Permethyl®, a C ₈ to C ₁₆ branched ester such as isohexyl or isodecyl neopentanoate and may be selected from mixtures thereof. In at least certain embodiments, the volatile hydrocarbon oil has a flash point of at least 40°C. It is also possible to use mixtures of isoparaffins with other volatile hydrocarbon-based oils, such as petroleum distillates.

Additionally, the volatile silicone oil may be selected from linear or cyclic silicone oils, such as those having a viscosity of 6 cSt or less at room temperature (25° C.) and having 2 to 7 silicon atoms, these silicones having 1 to 10 carbon atoms optionally substituted with an alkyl or alkoxy group having atoms. Examples of volatile silicone oils that can be used include octamethyltetrasiloxane, decamethylcyclo-pentasiloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and mixtures thereof. In at least certain embodiments, the volatile silicone oil has a flash point of at least 40°C.

In addition, the at least one volatile solvent may be selected from polar volatile solvents including, but not limited to, alcohols, volatile esters and volatile ethers.

The at least one solvent is about 95% or less by weight of the composition, such as about 90% or less, about 85% or less, about 80% or less, about 75% or less, about 70% or less, about 65% or less by weight. , about 60% by weight or less, about 55% by weight or less, or about 50% by weight or less. For example, the at least one solvent may be present in the composition in an amount ranging from about 40% to about 95%, such as from about 50% to about 90%, or from about 60% to about 85%, or from about 65% to about 80%. may exist.

silicone elastomer

The composition may optionally further comprise at least one silicone elastomer. Surprisingly, in certain embodiments, the at least one silicone elastomer can improve properties such as thickness and water resistance of the film without significantly affecting the mechanical or optical properties of the film. In another embodiment, the addition of at least one silicone elastomer may reduce the wettability by sebum, which will readily prevent loss of the tightening properties of the film. In at least certain embodiments, it may be advantageous to select silicone elastomers with greater than 1% active material (AM), such as greater than 2% AM.

The at least one silicone elastomer may be selected, for example, from at least one silicone crosspolymer dispersed in at least one oil. In certain embodiments, the at least one silicone crosspolymer may be selected from dimethicone crosspolymers, such as dimethicone/vinyl dimethicone crosspolymer and dimethicone/phenyl vinyl dimethicone crosspolymer. In other embodiments, the silicone crosspolymer may be modified with one or more groups selected from alkyl, polyether, polyglycerin groups. For example, the alkyl modified silicone crosspolymer can be selected from vinyl dimethicone/lauryl dimethicone crosspolymer, cetearyl dimethicone crosspolymer, and C ₃₀ -C ₄₅ alkyl cetearyl dimethicone crosspolymer. Non-limiting examples of polyether modified silicone crosspolymers include dimethicone/PEG-10/15 crosspolymers. Examples of alkyl and polyether modified silicone crosspolymers may be selected, for example, from PEG-10/lauryl dimethicone crosspolymers and PEG-15/lauryl dimethicone crosspolymers. Examples of the polyglycerin-modified silicone crosspolymer include dimethicone/polyglycerin-3 crosspolymer and lauryl dimethicone/polyglycerin-3 crosspolymer.

In at least certain embodiments, the silicone polymer does not include polyethylene glycol or polypropylene groups, or hydrophilic moieties. Optionally, the silicone elastomer is a silicone organic blend isododecane (and) dimethicone crosspolymer (18% AM) sold under the trade name EL-8040 ID by Dow Corning or dimethicone/bis sold under the trade name EL-8050 ID -isobutyl PPG-20 crosspolymer (17% AM in isododecane); or isododecane (and) vinyldimethyl/trimethylsiloxysilicate stearyl dimethicone crosspolymer (20% AM in isododecane) sold under the trade name GEL BELSIL RG90 by Wacker. can

The silicone crosspolymer may be dispersed in at least one oil. In certain embodiments, the oil may be selected from silicone oils, such as cyclic and linear organopolysiloxanes. Cyclic organopolysiloxanes include, for example, cyclotetrasiloxane; cyclopentasiloxane; and methylated cyclic organopolysiloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane. Non-limiting examples of linear organopolysiloxanes include low molecular weight dimethicone; high molecular weight dimethicone; alkyl derivatives of linear organopolysiloxanes such as cetyl dimethicone and lauryl trimethicone; aryl derivatives of linear organopolysiloxanes such as phenyl trimethicone; and hydroxylated derivatives of linear organopolysiloxanes such as dimethiconol. In other embodiments, the oil is an organic oil, such as mineral oil; linear and branched alkanes such as isododecane; triethylhexanoin; and squalane.

In some embodiments, the at least one silicone crosspolymer comprises from about 5% to about 35% by weight, such as from about 10% to about 20% by weight, or from about 25% to about the total weight of the silicone elastomer blend. about 35% by weight, or from about 20% to about 30% by weight. The at least one oil comprises from about 65% to about 95% by weight, such as from about 80% to about 90% by weight, or from about 65% to about 75% by weight, or from about 70% by weight relative to the total weight of the silicone elastomer blend. % to about 80% by weight.

In various exemplary embodiments, the silicone elastomer blend comprises from about 20% to about 30% dimethicone/vinyl dimethicone crosspolymer. In a further exemplary embodiment, the silicone elastomer blend comprises from about 70 weight percent to about 80 weight percent dimethicone. In yet a further exemplary embodiment, the silicone elastomer blend comprises from about 20 weight percent to about 30 weight percent dimethicone/vinyl dimethicone crosspolymer and from about 70 weight percent to about 80 weight percent dimethicone.

Dimethicone (and) dimethicone/vinyl dimethicone crosspolymer, KSG-21 (27% active substance) (INCI name: dimethicone/ PEG-10 dimethicone vinyl dimethicone crosspolymer), KSG-20 (95% active substance) (INCI name: PEG-10 dimethicone crosspolymer), KSG-30 (100% active substance) (INCI name: lauryl PEG -15 dimethicone vinyl dimethicone crosspolymer), KSG-31 (25% active substance) (INCI name: Lauryl PEG-15 dimethicone vinyl dimethicone crosspolymer), KSG-32 or KSG-42 or KSG-320 or KSG-30 (25% active substance) (INCI name: lauryl PEG-15 dimethicone vinyl dimethicone crosspolymer), lauryl PEG-15 dimethicone vinyl dimethicone crosspolymer of KSG-33 (20% active substance), KSG-210 (25% active substance) (INCI name: dimethicone/PEG-10/15 crosspolymer), KSG-310 (polyoxyethylenated lauryl modified polydimethylsiloxane in mineral oil), KSG-330 and KSG- PEG-15/lauryl dimethicone crosspolymer of 340, and X-226146 (32% active substance) (INCI name: dimethicone/PEG-10 dimethicone vinyl dimethicone crosspolymer); DC9010 (9% active material) and DC9011 (11% active material) (INCI name: PEG-12 dimethicone crosspolymer) sold by Dow Corning, cyclopentasiloxane (and) dimethicone crosspolymer of DC9040, and dimethicone (and) dimethicone crosspolymer of DC9041; Alternatively, silicone elastomers may be selected that are products of the VELVESIL family sold by Momentive, such as Velvesil 125 and Velvesil DM.

Other examples of silicone elastomers are KSG-710 from Shin-Etsu (25% active material, INCI name: dimethicone/polyglycerin-3 crosspolymer), all of which are from Shin-Etsu; and KSG-820, KSG-830 and KSG-840, wherein KSG-820, KSG-830 and KSG-840 are all different diluents, i.e., 820 is isododecane, 830 is triethyl hexanoin, and also 840 is squalene dimethicone/polyglycerin-3 crosspolymer (INCI) in

The at least one silicone elastomer is present in an amount of about 10% or less, such as about 8% or less, about 5% or less, about 4.5% or less, about 4% or less, about 3.5% or less, or about 3 wt% or less, about 2.5 wt% or less, about 2 wt% or less, about 1.5 wt% or less, about 1 wt% or less, about 0.75 wt% or less, about 0.5 wt% or less, about 0.25 wt% or less, about 0.2 wt% or less % or less, or may optionally be included in the composition in an amount of about 0.1% by weight or less. In certain embodiments, the at least one silicone elastomer comprises from about 1% to about 10% by weight, such as from about 2% to about 8% by weight, from about 3% to about 6% by weight, or about It may be present in an amount ranging from 4% to about 5% by weight.

wetting agent

Optionally, a composition according to the present disclosure may comprise at least one humectant or humectant. Surprisingly, in at least certain embodiments, the at least one humectant is capable of improving the optical properties and feel of a film formed by the composition on the skin without adversely affecting the mechanical properties of the film.

By way of example only, humectants or humectants include glycerin and glycols such as propylene glycol, butylene glycol, dipropylene glycol and diethylene glycol, glycol ethers such as monopropylene, dipropylene and tripropylene glycol alkyl (C ₁ -C ₄ ) polyhydroxy compounds including, but not limited to, ethers, monoethylene, diethylene and triethylene glycol.

At least one wetting agent is about 20% or less by weight of the composition, such as about 15% or less, about 14% or less, about 13% or less, about 12% or less, about 11% or less, about 10% or less by weight of the composition. , about 9 wt% or less, about 8 wt% or less, about 7 wt% or less, about 6 wt% or less, about 5 wt% or less, about 4 wt% or less, about 3 wt% or less, about 2 wt% or less, about It may be present in the composition in an amount of up to 1% by weight, or up to about 0.5% by weight.

water

Optionally, at least in certain embodiments, water may be added to a composition according to the present disclosure. Surprisingly, in certain non-limiting embodiments, water can improve the properties of a film formed by the composition on the skin, such as Young Modulus, clarity, cohesion, and thickness.

Water is about 15% or less, about 12% or less, about 10% or less, about 9% or less, about 8% or less, about 7% or less, about 6% or less, about 5% or less by weight of the composition. It can be included in the composition in an amount of about 4% by weight or less, about 3% by weight or less, about 2% by weight or less, about 1% by weight or less, or about 0.5% by weight or less. In at least certain embodiments, the composition is anhydrous or substantially anhydrous. In another embodiment, the composition may be in the form of a water-in-oil (W/O) emulsion.

In at least certain embodiments, it may be advantageous to include water and at least one humectant together in the composition, for example water and glycerin.

film

When a composition according to the present disclosure is applied to the skin, at least one thermoplastic elastomer, at least one tacky polymer, and at least one filler together form a matrix to form a film on the skin. Films formed by the compositions described herein are rapidly formed, long lasting and permanent, and have advantageous optical properties in hiding skin imperfections, such as minimal thickness, good coverage of blemishes, matte effect, and soft focus effect, which It helps to blur blemishes and make them less noticeable.

In various exemplary embodiments, for best film properties, the total amount of thermoplastic elastomer, tacky polymer, and filler is greater than about 10% by weight, such as greater than about 15% or about 20% by weight relative to the total weight of the composition. It may be advantageous to exceed

In yet a further exemplary embodiment, for best film properties, the amount of thermoplastic elastomer and tacky polymer is in the range of about 1:10 to 10:1, and about 1:5 to 5:1 of thermoplastic elastomer: tacky polymer. range, or about 1:1 to 8:1.

The film may be formed rapidly after the composition is applied to the skin, for example, in less than about 30 minutes, less than about 20 minutes, less than about 10 minutes, or less than about 5 minutes.

Films according to the present disclosure can be long lasting. For example, once the composition is applied to the skin to form a film, unless the user intentionally removes the film, the film may last for at least about 6 hours, such as at least about 12 hours, at least about 24 hours, at least about 48 hours, or remain substantially intact on the skin for a period of at least about 72 hours.

The film may also be permanent. For example, the film may not peel off when rubbed, or may not come off with sweat, or even when the film comes into contact with water, makeup products, lotions, or other products the user may wish to apply makeup to the skin. .

In some embodiments, the film is barely perceptible to the human eye. Pigments may be added, but optionally the pigments can color the film approximately equal to the skin, so that the film "matches well" with the skin. In addition, the film is sufficiently permanent and thin to allow the user to apply the composition to the skin imperfection to form a film over the skin imperfection and then begin a routine makeup routine without adversely affecting the film.

Films formed by the compositions described herein are less than about 500 kPa, less than about 400 kPa, less than about 300 kPa, less than about 250 kPa, less than about 200 kPa, less than about 150 kPa, less than about 100 kPa, less than about 75 kPa, or It may have a Young's modulus of less than about 50 kPa. Therefore, the film may be considered not capable of tightening, i.e., the film does not have or significantly have a feeling of shrinkage on the skin to reduce the appearance of wrinkles and eye bags. However, the film will still improve the appearance of the skin by hiding or obscuring the appearance of skin imperfections such as wrinkles, under eye fat, pimples, pores, dark spots, etc.

Way

Also disclosed is a method for improving the appearance of the skin comprising applying on the skin a composition according to the present disclosure to form a long lasting film on the skin. Methods include obscuring or hiding skin imperfections, eg, covering or hiding pimples, pores, dark spots, and the like.

It should be understood that terms such as "the", "an" or "an" as used herein mean "at least one" and should not be limited to "only one" unless expressly indicated to the contrary. Thus, for example, reference to “a part” includes examples having two or more such parts, unless the context clearly dictates otherwise.

No method is intended to be interpreted as requiring that its steps be performed in a particular order, unless explicitly stated otherwise. Thus, no specific order is implied in a method claim unless the order to be followed is actually recited in a method claim or unless specifically stated otherwise in the claim or description that the steps are to be limited to that specific order.

Although various features, elements or steps of a particular embodiment may be disclosed using the phrase "comprising", alternative embodiments are implied, including those that can be described using the phrase "consisting of" or "consisting essentially of". you need to know that it will be Thus, for example, alternative embodiments implied with respect to a method comprising A+B+C include embodiments wherein the method consists of A+B+C and embodiments wherein the method consists essentially of A+B+C. include The phrase “at least one of A, B and C” described is intended to include “at least one A or at least one B or at least one C”, and also includes “at least one A and at least one B and at least one of C" is intended to be included.

All ranges and amounts provided herein are intended to include subranges and amounts using any disclosed values as endpoints. Therefore, a range of "1% to 10%, such as 2% to 8%, such as 3% to 5%" is "1% to 8%", "1% to 5%", "2% to 10%", etc. We want to include the scope of All numbers, amounts, ranges, etc., whether expressly stated or not, are intended to be modified by the term "about." Likewise, a given range of “about 1% to 10%” allows the term “about” to modify both the endpoints of 1% and 10%.

It is understood that when amounts of ingredients are given, they are intended to represent amounts of active substance.

It should be noted that all patents and published patent applications referenced are incorporated herein in their entirety.

It is to be understood that, unless otherwise indicated, all numbers expressing amounts of ingredients, reaction conditions, etc. used in the specification and claims are modified in all instances by the term "about." Therefore, unless indicated to the contrary, the numerical parameters set forth in the following specification and appended claims are approximations which may vary depending on the desired properties to be achieved by the present disclosure.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, unless otherwise indicated, the numerical values set forth in specific examples are reported as precisely as possible. Any numerical value, however, inherently contains some degree of error necessarily resulting from the standard deviation found in its respective testing measurements. The following examples are intended to illustrate, but not necessarily limit, embodiments of the present disclosure.

Compositions and methods according to the present disclosure include, or consist of, the elements and limitations described herein, as well as any additional or optional components, components, or limitations described herein or otherwise known in the art. or may consist essentially of them.

It will be apparent to those skilled in the art that various modifications and changes can be made in the delivery systems, compositions and methods of the present invention without departing from the spirit or scope of the present invention. Accordingly, it is intended that the present invention cover such modifications and variations of this invention as come within the scope of the appended claims and their equivalents.

Example

The following examples are provided for illustrative purposes only and are not intended to be limiting.

In each of the following examples, the amounts of ingredients given are for the active substance (AM).

haze (h aze) and transparency - BYK haze -guard

Films were made by casting the solution onto a clear plastic film using an 8" draw down bar and dried on a workbench for 3 hours. Clarity and haze of the films were measured using a BYK Haze-Guard instrument. .

transparency , Uniformity and Whitening - colorimeter Minolta (colorimeter MINOLTA)

The film was made by casting the solution onto a clear plastic film using a drawdown bar (2 mil) and dried on a bench for 1 hour. To calculate the transparency, uniformity, and whitening of the film, a Minolta colorimeter was used to measure L, a*, b*, and Y of the film and skin color sheet reference and black and white reference.

persistence and coverage

The film was applied to the cheeks of three quality evaluators showing pimples and pores along the nose/cheek area and left for 6 hours. Persistence was evaluated through before/after photos. Shininess, pore hiding, and blemish coverage were evaluated at both before and after time points.

Example 1: Composition to form a film

As a thermoplastic elastomer, Kraton (25%) was dispersed in isoparaffin oil with a mechanical stirrer and heated to 90°C. Stirring was continued at 90° C. for 1-2 hours until all Kraton polymer was dissolved and the polymer solution became clear. In a plastic container, add the desired amount of oil dispersion (49% in isododecane), silica silylate, silicone elastomer (DC EL-8040 ID silicone organic blend, 18% isododecane), and pigment in the specified ratio of Kraton /Added to the isoparaffin oil solution, and the solution was mixed in a high-speed mixer at 2500 rpm/min for 5 minutes. The final solution was kept at room temperature and sealed to avoid evaporation of the solvent.

Table 1 below shows a comparison of formulations according to the present disclosure containing pigments and films formed therefrom (Ex. 1a; 1b) with two commercially available comparative formulations.

<Table 1> Comparison of film-forming composition for improving the appearance of skin and two commercially available foundations

Films were evaluated as described above. Ex. 1a and 1b demonstrate superior ability to hide longer lasting and more pronounced skin imperfections such as pimples. Ex. Films 1a and 1b both lasted longer, with better results than commercial comparator formulations in hiding or obscuring skin imperfections.

Claims (59)

a. at least one thermoplastic elastomer;
b. at least one tacky polymer;
c. at least one filler;
d. at least one pigment; and
e. Silicone elastomer blend comprising 20% to 30% dimethicone/vinyl dimethicone crosspolymer
wherein the at least one tacky polymer is present in an amount of 0 to 10% by weight based on the weight of the composition;
wherein the at least one thermoplastic elastomer has at least two glass transition temperatures (T _g ). The composition of claim 1 , wherein the at least one thermoplastic elastomer has a first T _g from -100°C to 0°C and a second T _g from 25°C to 150°C. 3. The method of claim 2, wherein the at least one thermoplastic elastomer comprises at least one block of styrene and at least one block comprising units selected from butadiene, ethylene, propylene, butylene, isoprene, or mixtures thereof. composition. The composition of claim 1 , wherein the at least one thermoplastic elastomer is selected from semi-crystalline block copolymers. 5. The composition according to claim 4, wherein the semi-crystalline block copolymer comprises at least one moiety corresponding to formula (I) or at least one moiety corresponding to formula (II):
<Formula I>

In the above formula:
1) R ¹ , R ² , R ³ and R ⁴ , which may be the same or different, are (a) linear, branched or cyclic, saturated or unsaturated C ₁ to C ₄₀ hydrocarbon-based groups, (b) poly represents a group selected from organosiloxane chains;
2) X, which may be the same or different, represents a linear or branched C ₁ to C ₃₀ alkylenediyl group;
3) Y is a saturated or unsaturated C ₁ to C ₅₀ linear or branched divalent alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene group;
4) G, which may be the same or different, represents a group selected from ester, amide, sulfonamide, carbamate, thiocarbamate, urea, thiourea groups, and combinations thereof;
5) m is an integer ranging from 1 to 1,000, from 1 to 700, or from 6 to 200;
6) n is an integer ranging from 2 to 500, or from 2 to 200;
<Formula II>

In the above formula:
R ¹ and R ³ , which may be the same or different, are as defined above for formula I,
R ⁷ represents a group as defined above for R ¹ and R ³ or represents a group of the formula —XGR ⁹ , wherein X and G are as defined above for formula I and R ⁹ represents a hydrogen atom or represents a linear, branched or cyclic saturated or unsaturated C ₁ to C ₅₀ hydrocarbon-based group,
R ⁸ represents a group of the formula -XGR ⁹ , wherein X, G and R ⁹ are as defined above,
m ₁ is an integer ranging from 1 to 998,
m ₂ is an integer ranging from 2 to 500. 5. The composition according to claim 4, wherein the semi-crystalline block copolymer comprises at least one moiety corresponding to formula (III) or at least one moiety corresponding to formula (IV):
<Formula III>

<Formula IV>

In the above formula:
(a) R ¹ , R ² , R ³ , and R ⁴ are the same or different and can be selected from the group consisting of methyl, ethyl, propyl, isopropyl, siloxane chain, and phenyl;
(b) X is a straight or branched chain alkylene having 1 to 30 carbons;
(c) Y is selected from the group consisting of straight or branched chain alkylene having 1 to 40 carbons;
(d) m is a number from 1 to 700;
(e) n is a number from 1 to 500; The composition of claim 1 , wherein the at least one thermoplastic elastomer is present in the composition in an amount ranging from 5% to 25% by weight relative to the total weight of the composition. The composition of claim 1 , wherein the at least one tacky polymer has a T _g greater than 25°C. The method of claim 1 , wherein the at least one tacky polymer is
polymer particles of a C ₁ -C ₄ alkyl (methacrylate) polymer, stabilized in a non-aqueous dispersion; aliphatic or cycloaliphatic hydrocarbon polymers selected from aliphatic or cycloaliphatic hydrocarbon resins;
hyperbranched polyacids; or
Acrylic film former
A composition selected from 10. The method of claim 9, wherein the at least one tacky polymer comprises from 80% to 100% by weight of a C ₁ -C ₄ alkyl (meth)acrylate and from 0% to 20% by weight of an ethylenically unsaturated acid monomer in the oil dispersion. selected from polymer particles of C ₁ -C ₄ alkyl (methacrylate) polymers comprising
The oil dispersion comprises a hydrocarbon-based oil comprising at least 8 and up to 40 carbon atoms;
Polymer particles in oil dispersions are isobornyl acrylate homopolymer, statistical copolymer of isobornyl acrylate/methyl acrylate, statistical copolymer of isobornyl acrylate/methyl acrylate/ethyl acrylate, and isobornyl The composition is stabilized by at least one stabilizing agent selected from statistical copolymers of methacrylate/methyl acrylate. 11. The method of claim 10, wherein the polymer of the polymer particles is
- polymers consisting of one or more C ₁ -C ₄ alkyl (methacrylate) polymers; and
- a polymer consisting essentially of a copolymer of C ₁ -C ₄ (meth)acrylate and (meth)acrylic acid or maleic anhydride
A composition selected from The composition of claim 1 , wherein the at least one tacky polymer has a T _g of less than 25°C. 10. The method of claim 9, wherein the hyperbranched polyacid comprises at least two carboxyl groups,
molecular weight (Mw) ranging from 500 to 25,000;
a viscosity ranging from 0.01 Pas to 10 Pas at 210°F; or
Acid number in the range of 20 to 400 mg/KOH
A composition having at least one of delete 14. The composition according to any one of claims 1 to 13, wherein the ratio of thermoplastic elastomer: tacky polymer ranges from 1:10 to 10:1. 14. A film for reducing the appearance of skin imperfections, formed from the composition of any one of claims 1 to 13. 14. A method for improving the appearance of skin, comprising applying a composition according to any one of claims 1 to 13 to the skin, thereby forming a film on the skin. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete