COSMETIC ADHESIVE COMPOSITIONS

Abstract

COSMETIC ADHESIVE COMPOSITIONS A cosmetic adhesive composition is proposed. The cosmetic adhesive composition includes water; approximately 10% to 20% by weight of one or more acrylic latex polymers having a glass transition temperature (Tg) below approximately -40 °C; one or more aqueous polyurethane dispersions; and one or more saccharide esters of at least one C2-C4 organic acid. The one or more acrylic latex polymers having a glass transition temperature below approximately -40 °C and the one or more aqueous polyurethane dispersions are present in a concentration-by-weight ratio that is in the range of approximately 1:3 to approximately 3:1. Methods for bonding false eyelashes and false eyebrows are also proposed. Figure for abstract: none

Description

Title of the invention: COSMETIC ADHESIVE COMPOSITIONS technical field

[0001] This disclosure relates to cosmetic adhesive compositions, such as those suitable for the adhesion of false eyelashes or false eyebrows for prolonged periods. CONTEXT

[0002] To achieve the desired aesthetic appearance of a user's eyelashes and eyebrows, false eyelashes and eyebrows can be used. These can be attached using an adhesive or "glue." The inventors of the present invention have found that it is important not only that this glue ensures adhesion to body surfaces, but also that it provides sufficient cohesion of the glue itself, so that the glue lasts for a sufficient amount of time. BRIEF SUMMARY

[0003] A cosmetic adhesive is proposed. The cosmetic adhesive composition may include water; approximately 10% to 20% by weight of one or more acrylic latex polymers having a glass transition temperature (Tg) below approximately -40 °C; one or more aqueous polyurethane dispersions; and one or more saccharide esters of at least one C2-C4 organic acid. The one or more acrylic latex polymers having a low glass transition temperature and the one or more aqueous polyurethane dispersions are present in a ratio of the weight concentration of the one or more acrylic latex polymers having a low glass transition temperature to the weight concentration of the one or more aqueous polyurethane dispersions that is in the range of approximately 1:3 to approximately 3:1.

[0004] Preferably, the ratio between the weight concentration of one or more acrylic latex polymers having a low glass transition temperature and the weight concentration of one or more aqueous polyurethane dispersions is in a range of about 1:1 to about 2:1.

[0005] Preferably, the one or more acrylic latex polymers having a glass transition temperature (Tg) may have a Tg lower than about -50 °C.

[0006] Preferably, one or more aqueous polyurethane dispersions is / are formed by reacting a polyester prepolymer with a non-phenyl isocyanate.

[0007] It is desirable that the composition be substantially free of one or more C2-C6 waxes, oils, silicones and / or polyols.

[0008] It is desirable that the composition optionally include one or more additional adhesive polymers, and that the total weight concentration of one or more acrylic latex polymers having a glass transition temperature (Tg) below about -40 °C; one or more aqueous polyurethane dispersions; one or more saccharide esters of at least one C2-C4 organic acid; and one or more additional adhesive polymers be in a range of about 30% to about 70%.

[0009] It is desirable that one or more acrylic latex polymers having a glass transition temperature (Tg) below about -40 °C be(s) present in the composition at a weight concentration of about 10% to about 20% of the composition.

[0010] It is desirable that one or more aqueous polyurethane dispersions be present in the composition at a weight concentration of about 8% to about 20% of the composition.

[0011] It is desirable that one or more saccharide esters of at least one C2-C4 organic acid be present in an amount of 5% to approximately 30% by weight of the composition. The composition may include one, a plurality, or even all of the features described above.

[0012] According to another aspect, a method for attaching a false eyelash includes applying the composition described above to a surface selected from a false eyelash, a natural eyelash, or combinations thereof to form an active adhesive surface. It further includes bringing the active adhesive surface into contact with a corresponding mating surface (false eyelash or natural eyelash) to form an augmented eyelash. For example, the adhesive may be applied to a false eyelash and then attached to a corresponding natural eyelash; or the adhesive may be applied to a natural eyelash and then attached to a corresponding false eyelash. Similarly, the method may further include attaching a false eyebrow, and may include applying the composition described above to a surface selected from a false eyebrow, a natural eyebrow, or combinations thereof to form an active adhesive surface.It further includes bringing the active adhesive surface into contact with a corresponding mating surface (false eyebrow or natural eyebrow) to form an augmented eyebrow. For example, the adhesive can be applied to a false eyebrow and then attached to a corresponding natural eyebrow; or the adhesive can be applied to a natural eyebrow and then attached to a corresponding false eyebrow. In other embodiments, the cosmetic adhesive is applied to the skin surface, such as the eyelid skin or the skin of the eyebrow area. DETAILED DESCRIPTION

[0013] Apart from the examples of operation, or unless otherwise indicated, all numbers expressing quantities of ingredients (for example, concentrations, ratios, etc.) and / or reaction conditions should be understood as being modified in certain embodiments by the term "approximately", meaning within 10% to 15% of the number indicated (for example, "approximately 10%" means from 8.5% to 11.5%, in particular from 9% to 11%, and approximately 2% means from 1.7% to 2.3%, in particular from 1.8% to 2.2%).

[0014] Similarly, for ratios, the modifier "approximately" means to the nearest 10% or 15% of the number. For example, approximately 4:1 means from 3.4:1 to 4.6:1, preferably from 3.6:1 to 4.4:1. As a person skilled in the art will readily understand, when the first ingredient in a ratio is less than the second, then a ratio can be expressed "inversely." For example, if a second ingredient, B, is present in an amount or at a concentration 2.5 times greater than that of ingredient A, this can be identified as an A:B ratio of 1:2.5. "Approximately 1:10" means from 1:8.5 to 1:11.5, preferably from 1:9 to 1:11. Unless otherwise stated, all concentrations stated as percentages are concentrations by weight and also, unless otherwise stated, refer to the entire composition of the cosmetic adhesive.

[0015] As used here, the term "at least one" means one or more.

[0016] As used herein, the expression "exempt" or "completely exempt (from a component) » qualifies compositions that do not contain the component to any degree measurable by standard means. As used here, the expression “substantially free (of a component)” qualifies compositions that do not contain an appreciable amount of the component, for example, not more than about 1% by weight, or not more than about 0.5% by weight, or not more than about 0.3% by weight, such as not more than about 0.1% by weight, based on the total weight of the composition.

[0017] In some embodiments, the composition may be, for example, a single phase. Water

[0018] The adhesive composition includes water. In some embodiments, water may be present in quantities of up to 65% by weight of the composition. In some embodiments, water may be present in quantities of 15%, 20%, 25%, 30% or 35% up to 45%, 50%, 55%, 60% or 65% by weight of the composition, including all combinations or sub-ranges of these values.

[0019] The compositions of the present invention include adhesive polymers such as those described below: one or more acrylic latex polymers having a low glass transition temperature, one or more aqueous polyurethane dispersions, one or more saccharide esters of at least one C2-C4 organic acid, and other optional adhesive polymers. The total amount of adhesive polymers in the composition may range from approximately 30%, 35%, 40%, or 45% to approximately 45%, 50%, 55%, 60%, 65%, or 70% by weight.

[0020] Acrylic latex polymer having a low glass transition temperature (Tg)

[0021] In some embodiments, the cosmetic adhesive composition may include an acrylic latex polymer having a low glass transition temperature (Tg). Such acrylic latex polymers shall have a Tg value not exceeding -40 °C, and preferably not exceeding -45 °C, and preferably not exceeding -50 °C, -55 °C or -60 °C.

[0022] In some embodiments, the acrylic latex polymer may be an acrylic latex polymer lacking styrene groups. In some embodiments, the acrylic latex polymer may be an acrylate / ethylhexyl acrylate copolymer, which may be commercially available from Kobo Products, Inc. and Daito Kasei Kogyo Co., Ltd., under the trade names Daitosol 5500GM and / or Daitosol 5500GX. This product may be sold as an emulsion containing water, an ethyl methacrylate / N-butyl acrylate / 2-methylhexyl acrylate copolymer (aka acrylate / ethylhexyl acrylate copolymer), and Laureth-20. Daitosol 5500GM and Daitosol 5500GX are disclosed to have a glass transition temperature of -65 °C.

[0023] In certain embodiments, the acrylic latex polymer may be present in amounts ranging from 5%, 10%, or 15% to approximately 15%, 20%, 25%, 30%, or 35% by weight of the composition, including any combination or sub-range of these values. Polyurethane adhesive

[0024] According to the present invention, compositions comprising at least one aqueous polyurethane dispersion are proposed. The "aqueous polyurethane dispersion" may be the aqueous polyurethane dispersions disclosed in US patents No. 7,445,770 and / or 7,452,770.

[0025] More specifically, the aqueous polyurethane dispersions of the present invention are preferably the reaction products of:

[0026] A) a prepolymer according to the formula: 'H 0 OHHOOH I II II II II II I OCN—R2--NCO — Rj— O—CN—"R2-(-N-—C — O-R3 —OCN—R,^--NCO J m

[0027] in which R represents a divalent radical of a dihydroxyl functional compound, and R represents a hydrocarbon radical of an aliphatic polyisocyanate or cycloaliphatic, R3 represents a radical of a low molecular weight diol, optionally substituted by ionic groups, n is from 0 to 5, and m is > 1;

[0028] B) at least one chain extender according to the formula: H2N-R4-NH2 in which R4 represents an alkylene radical or alkylene oxide not substituted by ionic or potentially ionic groups; and

[0029] C) at least one chain extender according to the formula: H2N-R5-NH2 in which R5 represents an alkylene radical substituted by ionic or potentially ionic groups.

[0030] Suitable dihydroxyl compounds for providing the divalent radical Ri include those having at least two hydroxyl groups and average number molecular weights ranging from about 700 to about 16,000, and preferably from about 750 to about 5,000. Examples of high molecular weight compounds include polyester polyols, polyether polyols, polyhydroxy polycarbonates, polyhydroxy polyacetals, polyhydroxy polyacrylates, polyhydroxy polyester amides, polyhydroxy polyalkadienes, and polyhydroxy polythioethers. Polyester polyols, polyether polyols, and polyhydroxy polycarbonates are preferred. Mixtures of several of these compounds also fall within the scope of the present invention.

[0031] Suitable polyisocyanates for providing the hydrocarbon radical R2 include organic diisocyanates having a molecular weight of about 112 to 1,000, and preferably about 140 to 400. Preferred diisocyanates are those represented among the general formula R2(NCO)2, shown above, in which R2 represents a divalent aliphatic hydrocarbon group having 4 to 18 carbon atoms, a divalent cycloaliphatic hydrocarbon group having 5 to 15 carbon atoms, a divalent araliphatic hydrocarbon group having 7 to 15 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms.Examples of suitable organic diisocyanates include tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate, dodecamethylene diisocyanate, cyclohexane-1,3- and -1,4-diisocyanate, l-isocyanato-3-isocyana tomethyl-3,5,5-trimethylcyclohexane (isophorone diisocyanate or IPDI), bis-(4-isocyanatocyclohexyl)methane, 1,3- and l,4-bis(isocyanatomethyl)cyclohexane, bis-(4-isocyanato-3-methylcyclohexyl)methane, toluene diisocyanate (TDI) isomers such as 2,4-diisocyanatotoluene, 2,6-diisocyanatotoluene, mixtures of these isomers, hydrogenated TDI, and 4,4'-diisocyanato Diphenylmethane and its isomeric mixtures with 2,4'- and optionally 2,2'-diisocyanato diphenylmethane, and 1,5-diisocyanato naphthalene. Mixtures of diisocyanates may of course be used. The preferred diisocyanates are the diisocyanates. Aliphatic and cycloaliphatic compounds. 1,6-Hexamethylene diisocyanate and isophorone diisocyanate are particularly preferred.

[0032] In the context of R3, "low molecular weight diols" are defined as diols having a molecular weight of about 62 to 700, preferably 62 to 200. They may contain aliphatic, alicyclic, or aromatic groups. Preferred compounds contain only aliphatic groups. Low molecular weight diols, having up to about 20 carbon atoms per molecule, include ethylene glycol, diethylene glycol, propane-1,2-diol, propane-1,3-diol, butane-1,4-diol, butylene 1,3-glycol, neopentyl glycol, butyl ethyl propane diol, cyclohexane diol, 1,4-cyclohexane dimethanol, hexane 1,6-diol, bisphenol A (2,2-bis(4-hydroxyphenyl)propane), hydrogenated bisphenol A (2,2-bis(4-hydroxycyclohexyl)propane), and mixtures thereof. Low molecular weight diols may optionally contain ionic or potentially ionic groups.Suitable low molecular weight diols containing ionic or potentially ionic groups are those disclosed in US Patent No. 3,412,054. Preferred compounds include dimethylol butanoic acid (DMBA), dimethylol propionic acid (DMPA), and caprolactone polyester diol containing a carboxyl group. If lower molecular weight diols containing ionic or potentially ionic groups are used, they are preferably used in an amount such that < 0.30 meq of COOH per gram of polyurethane is present in the polyurethane dispersion.

[0033] The prepolymer undergoes chain elongation using two classes of chain extenders. First, compounds conforming to the formula: H2 N-R4-NH2, where R represents an alkylene radical or alkylene oxide not substituted by ionic or potentially ionic groups. Alkylene diamines include hydrazine, ethylenediamine, propylenediamine, 1,4-butylenediamine, and piperazine. Alkylene diamine oxides include 3-{2-[2-(3-aminopropoxy)ethoxy]ethoxy}propylamine (also known as dipropylamine diethylene glycol or DPA-DEG ​​available from Tomah Products, Milton, Wis.), 2-methyl-1,5-pentanediamine (Dytec A available from DuPont), hexane diamine, isophorone diamine and 4,4-methylenedi(cyclohexylamine), and the DPA series of ether amines available from Tomah Products, Milton, Wis., including dipropylamine propylene glycol, dipropylamine dipropylene glycol, dipropylamine tripropylene glycol, dipropylamine poly(propylene glycol), dipropylamine ethylene glycol, dipropylamine poly(ethylene glycol), dipropylamine 1,3-propanediol, dipropylamine 2-methyl-l,3-propanediol, dipropylamine 1,4-butanediol, dipropylamine 1,3-butanediol, dipropylamine . 1,6-Hexanediol and dipropylamine cyclohexane-1,4-dimethanol. Mixtures of the listed diamines may also be used.

[0034] Second-class chain extenders are compounds conforming to the formula: H2N-R5-NH2, in which R5 represents an alkylene radical substituted with ionic or potentially ionic groups. These compounds have one ionic or potentially ionic group and two groups that are reactive with isocyanate groups. These compounds contain two groups reactive with respect to isocyanate and one ionic group or a group capable of forming an ionic group. The ionic or potentially ionic group may be selected from the group consisting of ternary or quaternary ammonium groups, groups convertible into such a group, a carboxyl group, a carboxylate group, a sulfonic acid group, and a sulfonate group. The at least partial conversion of the convertible groups into salt groups of the type mentioned may take place before or during mixing with water.Specific compounds include diaminosulfonates, such as, for example, the sodium salt of N-(2-aminoethyl)-2-aminoethanesulfonic acid (ASA) or the sodium salt of N-(2-aminoethyl)-2-aminopropionic acid.

[0035] The polyurethane according to the invention may also include compounds which are located in each case at the ends of the chain and terminate said chains (chain terminations) as described in US patents No. 7,445,770 and / or 7,452,770.

[0036] Preferably, the aqueous polyurethane dispersion has a viscosity of less than 2000 mPa-s at 23 °C, preferably less than 1500, preferably less than 1000, including all intermediate ranges and sub-ranges.

[0037] Preferably, the aqueous polyurethane dispersion also has a solids content based on the weight of the dispersion of 20% to 60%, preferably 25% to 55% and preferably 30% to 50%, including all intermediate ranges and sub-ranges.

[0038] According to some embodiments, the aqueous polyurethane dispersion is carried out by a process in which a copolymer or prepolymer (polyester) is reacted with a (di)isocyanate, such as a non-phenylated (di)isocyanate.

[0039] Aqueous polyurethane dispersions suitable for use in the present invention include, but are not limited to, aqueous polyurethane dispersions sold under the name BAYCUSAN® by Covestro such as, for example, BAYCUSAN® C1001 (polyurethane-34), BAYCUSAN® C1003 (polyurethane-32) and BAYCUSAN® C1004 (polyurethane-35).

[0040] Polyurethane-34 is manufactured by a process in which a copolymer of hexanediol (qv), neopentyl glycol (qv), and adipic acid (qv) is reacted with hexamethylene diisocyanate (a non-phenyl diisocyanate). The resulting polymer is further reacted with sodium N-(2-aminoethyl)-2-aminoethanesulfonate and ethylenediamine.

[0041] Polyurethane-35 is manufactured by a process that includes the reaction of a polyester prepolymer consisting of adipic acid (qv), hexanediol (qv) and neopentyl glycol (qv) with saturated methylene diphenyl diisocyanate (qv). The resulting urethane polymer is further reacted with sodium N-(2-aminoethyl)-2-aminoethanesulfonate and ethylenediamine, and then dispersed in water.

[0042] In more preferred embodiments, the aqueous polyurethane dispersion includes polyurethane-34 and / or polyurethane-35. In a more preferred embodiment, the aqueous polyurethane dispersion includes or consists of polyurethane-34.

[0043] In some embodiments, aqueous polyurethane dispersions may be present in amounts ranging from 2%, 4%, 5%, 8% or 0% to about 10%, 12%, 15%, 20% or 25% by weight of the composition, including any combination or sub-range of these values.

[0044] According to certain embodiments, one or more acrylic latex polymers having a low glass transition temperature and one or more aqueous polyurethane dispersions are present in a weight concentration ratio of one or more acrylic latex polymers having a low glass transition temperature to the weight concentration of one or more aqueous polyurethane dispersions that is in the range of approximately 1:3, 1:2.5, 1:2, 1:1.5, or 1:1, to approximately 1:1, 1.5:1, 2:1, 2.5:1, or 3:1. Most desirable, this ratio is to be between approximately 1:1 and approximately 3:1, such as between approximately 1:1 and approximately 2:1.

[0045] SACCHARIDE ESTER OF AT LEAST ONE C2-C4 ORGANIC ACID

[0046] The cosmetic adhesive compositions of the present invention include a saccharide ester of at least one C2-C4 organic acid. The saccharide ester of at least one C2-C4 organic acid may be useful for accelerating the development of tackiness. Examples of suitable saccharide esters include those soluble in C2-C4 monoalcohols and / or ethyl acetate. In some embodiments, the C2-C4 organic acid is or includes acetic acid and butyric acid. In some embodiments, the cellulosic ester of at least one C2-C4 organic acid is or includes sucrose acetate isobutyrate (“SAIB”).

[0047] The saccharide ester of at least one C2-C4 organic acid may be, for example, sucrose acetate butyrate commercially available from Eastman Chemical such as SAIB-100.

[0048] The cellulosic ester of at least one C2-C4 organic acid may be present in a weight concentration in the composition of finishing nail polish which is about 0.5%, 1%, 2%, 3%, or 5% to about 8%, 10%, 15%, 20%, 25%, or 30%.

[0049] Additional adhesive polymers other than one or more acrylic latex polymers having a low glass transition temperature, one or more aqueous polyurethane dispersions, and one or more saccharide esters of at least one C2-C4 organic acid may be present in the cosmetic adhesive composition. Examples of other adhesive polymers include acrylate polymers having a Tg not exceeding approximately 20 °C; polysaccharides including various gums such as xanthan gum, gellan gum, and the like; starches and starch derivatives such as polyacrylate sodium starch, cellulose and its derivatives; certain vinyl polymers such as polyvinyl acetate, and the like.In some embodiments, the additional adhesive polymer, when tested in accordance with the initial adhesive test or the dry adhesion test, both described herein, has values ​​of at least 2, such as at least 3.

[0050] In some embodiments, the additional adhesive polymers are present at a total weight concentration that is lower than the total weight concentration of one or more acrylic latex polymers having a low glass transition temperature, one or more aqueous polyurethane dispersions, and one or more saccharide esters of at least one C2-C4 organic acid. In some embodiments, the additional adhesive polymers are present at a total weight concentration that is lower than any individual weight concentration of one or more acrylic latex polymers having a low glass transition temperature, one or more aqueous polyurethane dispersions, and one or more saccharide esters of at least one C2-C4 organic acid. In some embodiments, the cosmetic adhesive composition is substantially free of additional adhesive polymers.

[0051] Certain classes of compounds may optionally be sufficiently excluded from the cosmetic adhesive compositions of the present invention so as to be substantially free of such compound(s). For example, the cosmetic adhesive composition may be free of, or substantially free of, one, a plurality, or all of the following: waxes, oils, silicones, and C2-C6 polyols. Waxes

[0052] By waxes, we mean a lipophilic compound that is solid at room temperature (25 °C), with a reversible solid / liquid change of state, having a melting point greater than or equal to 30 °C, which can go up to 200 °C, and in particular up to 120 °C. Waxes can be soft or hard.

[0053] As used herein, the term "soft wax" refers to waxes that have a melting point below approximately 70 °C, and preferably a melting point below approximately 60 °C. As used herein, the term "hard wax" refers to waxes other than soft waxes—namely, waxes that have a melting point of approximately 70 °C or higher, and preferably a melting point of approximately 60 °C or higher.

[0054] Non-limiting examples of soft waxes include paraffin wax, ozokerite, synthetic beeswax, beeswax, candelilla wax, hydrogenated jojoba wax, palm butter, sumac wax, polyglyceryl beeswax, siliconyl beeswax, ceresin wax, orange peel wax, silicone resin wax, alkyl dimethicone wax, Berry wax, koster wax, siliconyl candelilla wax and lignite wax.

[0055] Non-limiting examples of hard waxes include carnauba wax, microcrystalline wax, polyethylene wax, hydrogenated castor oil, AC 540 wax, hydrogenated castor wax, AC 400 wax, rice bran wax, alcohol-polyethylene wax, sunflower seed wax, Fischer-Tropsch wax, Chinese insect wax and shellac wax. Oils

[0056] “Oil” means any non-aqueous medium that is liquid at temperature ambient (25 °C) and atmospheric pressure (760 mm Hg). Oils are generally insoluble in water and include a hydrophobic fraction, such as one meeting one or more of the following three criteria: (a) has an unbroken carbon chain of at least six carbons, such as at least seven carbons, such as at least eight carbons, in which none of the six carbons is a carbonyl carbon, or has a hydrophilic fraction (defined below) directly attached to it; (b) has two or more alkyl siloxy groups; or (c) has two or more oxypropylene groups in sequence. The hydrophobic fraction may include linear, cyclic, aromatic, saturated, or unsaturated groups.The hydrophobic compound is, in some embodiments, non-amphiphilic and, as such, in this embodiment, does not include hydrophilic fractions, such as anionic, cationic, zwitterionic, or nonionic groups, which are polar, including sulfate, sulfonate, carboxylate, phosphate, phosphonate, ammonium, including mono-, di-, and trialkylammonium species, pyridinium, imidazolinium, amidinium, poly(ethyleneiminium), ammonioalkylsulfonate, ammonioalkylcarboxylate, amphoacetate, and poly(ethyleneoxy)sulfonyl fractions. In some embodiments, the oil does not include hydroxyl fractions. According to some other embodiments, the oils have a molecular weight of less than approximately 800 daltons.

[0057] Suitable examples of oil compounds include vegetable oils (glyceryl esters of fatty acids, monoglycerides, diglycerides, triglycerides) and fatty esters. Specific, non-limiting examples include, without limitation, esters such as isopropyl palmitate, isopropyl myristate, isononyl isonanoate, C12-C15 alkyl benzoates, caprylic / capric triglycerides, ethylhexyl hydroxystearate, silicone oils (such as dimethicone and cyclopentasiloxane), pentaerythritol tetraoctanoate, and mineral oil. Other examples of oils include a commonly used liquid organic ultraviolet filter, for example, as a UV-absorbing sunscreen, such as octocrylene, octyl salicylate, and octyl methoxycinnamate, among others.

[0058] Suitable oils include volatile and / or non-volatile oils. These oils may be any acceptable oil, including, but not limited to, silicone oils and / or hydrocarbon oils. Examples of volatile silicone oils include linear or cyclic silicone oils having a viscosity at room temperature less than or equal to 6 cSt and possessing 2 to 7 silicon atoms, these silicones being optionally substituted with alkyl or alkoxy groups of 1 to 10 carbon atoms. Specific oils that may be used in the invention include octamethyltetrasiloxane, decamethylcyclopent asiloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and mixtures thereof. C2-C6 polyols

[0059] Although in some embodiments C2-C6 polyols are included in the compositions of the present invention, in other embodiments the composition may be substantially free of C2-C6 polyols. Non-limiting examples of C2-C6 polyols include glycerol or diols, such as 1,2-pentanediol, propanediol, butanediol, glycols and glycol ethers, such as propylene glycol, butylene glycol, dipropylene glycol or diethylene glycol. Silicones

[0060] In certain embodiments, the composition may be substantially free of silicones. By silicones, we mean materials having a plurality of Si-OR motifs where R can be any organic group. Other materials

[0061] In some embodiments, the composition may include other materials. The other materials may be present in a total quantity of less than 40% and, in some embodiments, less than approximately 20% by weight of the composition. In some embodiments, the other materials may be present in a total quantity of 25 to 35% by weight of the composition.

[0062] In some embodiments, the other materials may comprise one or more cosmetic ingredients selected from colorants, C2-C8 monoalcohols, C2-C6 polyols, chelating agents, antioxidants, preservatives, and surfactants. These other materials may be collectively present at a weight concentration of approximately 0%, 1%, 2%, 3%, or 5% to approximately 5%, 10%, 15%, or 20%. In some embodiments, the compositions include C2-C4 monoalcohols at concentrations ranging from approximately 0%, 0.5%, or 1% to approximately 1%, 2%, 3%, 5%, or 10%.

[0063] For the purposes of this disclosure, one or more acrylic latex polymers having a glass transition temperature (Tg) below approximately -40 °C; one or more aqueous polyurethane dispersions; and one or more saccharide esters of at least one C2-C4 organic acid are excluded from the definition of "other materials," even if these adhesive polymers would still meet the functional definition of one or more of these ingredient classes. Dyes

[0064] The compositions of the present invention may further optionally include at least one colorant. Suitable colorants (coloring agents) include any colorant typically found in cosmetic compositions. Suitable colorants include, but are not limited to, lipophilic dyes, pigments, and pearlescent agents, and mixtures thereof.

[0065] Suitable examples of fat-soluble dyes are, for example, Sudan Red, DC Red 17, DC Green 6, [3-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet 2, DC Orange 5 and quinoline yellow.

[0066] Suitable pigments may be white or colored, inorganic and / or organic, and coated or uncoated. Examples of suitable inorganic pigments include titanium dioxide, optionally surface-treated, zirconium or cerium oxides, iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate, and ferric blue. Examples of suitable organic pigments include carbon black, D&C type pigments, and lakes based on cochineal carmine or barium, strontium, calcium, or aluminum, such as D&C Red Nos. 10, 11, 12, and 13, D&C Red No. 7, D&C Red Nos. 5 and 6, and D&C Red No. 34, as well as lakes such as D&C Yellow Lake No. 5 and D&C Red Lake No. 2.

[0067] Suitable pearlescent pigments can be chosen, for example, from white pearlescent pigments, such as mica coated with titanium dioxide or oxychloride bismuth, colored pearlescent pigments, such as titanium oxide coated mica with iron oxides, titanium oxide coated mica with in particular ferric blue or chromium oxide, or titanium oxide coated mica with an organic pigment of the aforementioned type, and pearlescent pigments based on bismuth oxychloride.

[0068] The colorant may be present in sufficient quantity to impart color to the eyelashes. In some embodiments, the colorant may be present in a total quantity of 0.1% to 20% by weight of the composition. In some embodiments, the colorant may be present in a total quantity ranging from 0%, 0.1%, 0.5%, 1%, 2%, 3%, 4%, or 5% up to 10%, 12.5%, or 15% by weight of the composition, including any combination or sub-range of these values. C2-C8 monoalcohols

[0069] In some embodiments, the composition may include one or more C2-C8 monoalcohols, such as C3-C4 monoalcohols. In some embodiments, only one C2-C8 monoalcohol is used. In some embodiments, the C2-C8 monoalcohol is a C2-C8 monoalkanol.

[0070] Non-limiting examples of C2-C8 monoalcohols include ethanol and isopropanol. If the C2-C8 monoalcohol is ethanol, the C2-C8 monoalcohol includes any denaturant used to denature the ethanol. In some embodiments, the C2-C8 monoalcohol is a denatured alcohol.

[0071] In some embodiments, the C2-C8 monoalcohol may be present in a total amount from 0.1% to 5% by weight of the composition. In some embodiments, the C2-C8 monoalcohol may be present in a total amount ranging from 0.1%, 1.5%, 2% or 3% up to 4%, 4.5% or 5% by weight of the composition, including any combination or sub-range of these values. Thickening agent

[0072] In some embodiments, the composition may include a thickening agent. In some embodiments, the composition includes a single thickening agent. In some embodiments, the composition includes a plurality of thickening agents.

[0073] In some embodiments, the thickening agent may be a polymer of natural origin. Non-limiting examples of polymers of natural origin useful as a thickening agent include thickening polymers comprising at least one sugar unit, for example, nonionic guar gums, optionally modified by C1-C6 hydroxyalkyl groups; biopolysaccharide gums of microbial origin, such as scleroglucan gum or xanthan gum; gums derived from plant exudates, such as gum arabic, ghatti gum, karaya gum, tragacanth gum, carrageenan gum, agar-agar and locust bean gum; pectins; alginates; starches; hydroxy(C1-C6 alkylcelluloses) and carboxy(C1-C6 alkylcelluloses).

[0074] In some embodiments, the thickening agent may be a cellulose thickener. Non-limiting examples of cellulose thickeners include hydroxyethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose, methylcellulose, ethylhydroxyethylcellulose, carboxymethylcellulose, starches such as sodium polyacrylate starch, and mixtures thereof.

[0075] In some embodiments, the thickening agent may be present in a total amount of 0%–10% by weight of the composition. In some embodiments, the thickening agent may be present in a total amount ranging from 0.1%, 0.25%, or 0.5% up to 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10% by weight of the composition, including any combination or sub-range of these values. In some embodiments, the thickening agent may be present in a total amount of 0.1%–2% by weight of the composition. In some embodiments, the composition may be free of, or substantially free of, a thickening agent. T-actives / emulsifiers

[0076] In some embodiments, the composition may include one or more surfactants. In some embodiments, the composition may include a plurality of surfactants. As those skilled in the art will recognize, surfactants and emulsifiers are generally amphiphilic molecules capable of reducing the surface tension of deionized water to levels below approximately 30 dynes / cm.

[0077] In some embodiments, the composition is free or substantially free of cationic surfactants or entirely free of surfactants.

[0078] In some embodiments, the composition may include one or more anionic surfactants. Examples include alkali or other metal salts such as sodium salts, ammonium salts, amine salts, amino alcohol salts and alkaline earth metal salts, for example, magnesium salts, of the following types of compounds: alkyl sulfates, alkyl ether sulfates, acyl isethionates, acyl glycinates, acyl taurates, acyl amino acids, acyl sarcosinates, sulfosuccinates, sulfonates, the alkyl and acyl groups of all these compounds comprising from 6 to 24 carbon atoms (saturated or unsaturated, linear or branched).

[0079] In some embodiments, the composition may include one or more nonionic surfactants. Non-limiting examples of nonionic surfactants include alkoxylated derivatives of the following: fatty alcohols, alkylphenols, fatty acids, fatty acid esters such as sorbitan fatty acid esters, and fatty acid amides, wherein the alkyl chain is in the C12-C50 range, preferably in the C16-C40 range, more preferably in the C24-C40 range, and having approximately 1 to approximately 110 alkoxy groups. The alkoxy groups can be selected from the group consisting of C2-C6 oxides and their mixtures, with ethylene oxide, propylene oxide, and their mixtures being the preferred alkoxides. The alkyl chain can be linear, branched, saturated, or unsaturated. Alkoxy alcohols can be used alone or in mixtures thereof. Antioxidants, chelating agents and preservatives

[0080] In some embodiments, the composition may include an antioxidant, a chelating agent, and / or a preservative. In some embodiments, the composition may be free of, or substantially free of, an antioxidant, a chelating agent, and / or a preservative. The optional antioxidant, chelating agent, and / or preservative may be selected from commonly used cosmetic examples of these functional materials.

[0081] In some embodiments, a method may be proposed. The method includes applying a composition described herein to natural eyelashes or eyebrows and / or false eyelashes (strips, clusters, etc.), false eyebrows, or fibers to be adhered to an area of ​​natural eyelashes or eyebrows. The term "eyelashes / eyebrows" is used herein to refer to eyelashes, eyebrows, or both. The false eyelashes, eyebrows, or fibers may then be positioned to form an augmented eyelash or eyebrow structure.

[0082] In certain aspects, a method for attaching a false eyelash or a false eyebrow includes

[0083] (1) the application of the composition described above to a surface chosen from an eyelash or eyebrow to form an active adhesive surface. It further includes (2) bringing the active adhesive surface into contact with a corresponding mating surface of an eyelash or eyebrow to form an augmented eyelash or eyebrow on the user. For example, the adhesive composition may be applied to a false eyelash, and then the active adhesive surface of the false eyelash may be attached to a corresponding natural eyelash to form an augmented eyelash. Similarly, the adhesive may be applied to a false eyebrow, creating an active adhesive surface, and then this is attached to a corresponding natural eyebrow to form an augmented eyebrow. Alternatively, the adhesive may be applied to a natural eyelash, forming an active adhesive surface on it, and then this is brought into contact with a corresponding false eyelash to be attached.Similarly, the adhesive can be applied to a natural eyebrow, and then a corresponding false eyebrow (or fibers) can be attached to the natural eyebrow. In other embodiments, the cosmetic adhesive composition is applied to a skin surface such as the eyelid skin or the skin of the eyebrow area. EXAMPLES Example 1

[0084] Three raw materials, an acrylic latex polymer having a glass transition temperature (Tg) below approximately -40 °C (acrylates / ethylhexyl acrylate copolymer, 55% active in water), an aqueous polyurethane dispersion (polyurethane-34, 32% active in water), and a saccharide ester of at least one C2-C4 organic acid (sucrose acetate isobutyrate, 90% active in alcohol), were evaluated separately for the following characteristics: initial adhesion, dry adhesion, and cohesion—which the inventors found to be characteristic of the high-performance eyelash adhesive throughout the day: (1) initial (wet) adhesion, (2) dry adhesion, and (3) cohesion. These tests are described below. Evaluation Initial (Wet) Adhesion

[0085] A droplet of each composition was deposited on dry skin and spread until uniform. The deposit was monitored to ensure it was sufficiently dry to assess its tackiness. When the deposit became transparent (i.e., at the beginning of the drying period), the tackiness was rated qualitatively from 1 to 5 (1 = low / slight tackiness, 5 = very sticky) by pressing on the deposit with a finger and pulling the finger upwards, and measuring the force required to separate the fingers. The ratings are assigned as follows: one (1) was defined as a composition with extremely low initial tackiness (little or no stickiness to the finger at any time during drying / just dry) – an example is polyurethane-6, available under the name LUVISET Si-PURA, available from BASF.One (3) has been defined as a film with intermediate peel strength from a weighing boat; an example is the commercially available Ardell Brush-On Eyelash Adhesive (ingredients: alcohol, water, acrylate copolymer, sorbitol). One (5) has been defined as a composition with very high initial tack (high adhesion to the finger, to the point where it is difficult to remove the finger from the film). An example is the acrylate / ethylhexyl acrylate copolymer, Daitosol 5500GX. Dry adhesion assessment

[0086] Approximately 7 g of each composition were poured into a polystyrene weighing boat and left to dry overnight under ambient conditions or under a fume hood. The adhesion of the dried composition to the weighing boat was qualitatively rated from 1 to 5 (1 = low adhesion, 5 = high adhesion) by removing the film from the weighing boat, by measuring the force required to remove the film from the surface of the weighing boat. The ratings are assigned as follows: a (1) was defined as a film that could be removed from the weighing boat with little or no force, an example being sucrose acetate isobutyrate; a (5) was defined as a film that is very difficult to remove from the weighing boat. An example is polyurethane-34. Cohesion Assessment

[0087] Approximately 7 g of each composition were poured into a weighing boat and left to dry overnight under ambient conditions or under a fume hood. The cohesion of the dried composition was qualitatively rated from 1 to 5 (1 = low cohesion, 5 = high cohesion) by removing a segment of film from the weighing boat and measuring the force required to create a break or tear in that segment. The ratings are assigned as follows: a (1) was defined as a film that could be torn very easily. An example is sucrose acetate isobutyrate; a (5) was defined as a film that was extremely difficult to tear, an example is polyurethane-34.

[0088] Evaluation Drying time

[0089] The drying time was determined by monitoring the visual transition from white to transparent of the film on the skin.

[0090] The test results for Example 1 are shown below.

[0091] [Table 1]

[0092] Table 1: Comparative Formulas (raw materials) Ingredients Cl C2 C3 Acrylates / Ethylhexyl Acrylate Copolymer 55% Polyurethane-34 32% Sucrose Acetate Isobutyrate 90% Initial Adhesion 5 2 4 Dry Adhesion 4 5 1 Cohesion 2 5 1

[0093] The results show that none of the three components has sufficient performance in all three properties. Example 2

[0094] The following formulas were produced by one of the following processes: (A), (B), or (C). (A) Combination of all the components described below by rapid mixing using a Hauschild SpeedMixer® at 2000–2500 rpm for up to 5 minutes at room temperature, (B) Mixing of all the components together on a Rayneri mixer at room temperature using a Cowles blade, or (C) A variant close to process “B,” but adapted for alcohol-free compositions as a co solvent, for improved dispersion of sucrose acetate isobutyrate. (C) Including combining all the oil-soluble components in a first container, heating and mixing until homogeneous; combining the remaining components in a second container, heating and mixing until homogeneous; combining the containers together, homogenizing, cooling, and pouring the mixtures into a suitable product container. The specific process used for each composition, along with the ingredients as percentages by weight, is noted in Table 2 below.

[0095] [Table 2]

[0096] Table 2: Comparative Formulas (sucrose acetate isobutyrate + polyurethane-34) C4 (Fia IP) C5 (Fia 2P) C6 (Fia 3P) C7 (Fia 4P) C8 (Fia 5P) C9 (Fia 6P) Sucrose acetate isobutyrate (SAIB) 5% 5% 10% 20% 30% 50% Polyurethane-34 30.22% 20% 10% 5% 5% 5% Water 62.81% 73.50% 78.42% 72.55% 61.44% 39.22% Emulsifiers 0.56% 0.56% 1.11% 2.22% 3.33% 5.56% Preservatives 1.41% 0.94% 0.47% 0.23% 0.23% 0.23% Process used CCCCCC Initial adhesion 1.5 1.5 3 3 3 3 Dry adhesion 3 2 2 2 2.5 1 Cohesion 4.5 4 4 2 2.5 1.5 Drying time (s) 90-100 90-100 80-90 80-90 60-80 60-80

[0097] The results in Table 2 show that when aqueous polyurethane dispersion and saccharide esters of at least one C2-C4 organic acid are used without the acrylic latex polymer having a glass transition temperature (Tg) below approximately -40 °C, at least the initial tack and dry tack are unacceptably low. In some cases (Comparative Examples, C4 and C5), the initial tack of the mixture is even worse than the poor initial tack of the polyurethane dispersion alone (see Example 1). It was also found that C4, C5, C6, and C7 exhibited stability problems. Surprisingly, however, it was found that SAIB at higher concentrations accelerated the onset of tackiness / adhesion. Example 3

[0098] The following formulas were produced and tested.

[0099] [Table 3]

[0100] Table 3: Comparative Formulas (polyurethane-34 + acrylates copolymer / ethylhexyl acrylate) Ingredients CIO (Fia 13P) Cil (Fia 15P) C12 (Fia 16P) C13 (Fia 19P) C13 (Fia 14P) Acrylates / Ethylhexyl Acrylate Copolymer 3.03% 5% 20.35% 30.25% 46.4% Polyurethane-34 27.2% 20% 20.16% 7.36% 5% Water 68.47% 74.01% 58.36% 61.77% 47.94% Preservatives 1.3% 0.99% 1.13% 0.62% 0.66% Process Used AAAAA Initial Adhesion 2 2.5 5 4 4.5 Dry Adhesion 4.5 4.5 5 4 2 Cohesion 4 4 5 3 1.5 Drying time(s) 90-120 90-120 90-120 90-120 90-120

[0101] The results in Table 3 show that when acrylic latex polymer having a glass transition temperature (Tg) below approximately -40 °C and aqueous polyurethane dispersion are used without saccharide esters of at least one C2-C4 organic acid, a good balance of properties can be achieved (see C12) if the concentrations of acrylic latex polymer having a glass transition temperature (Tg) below approximately -40 °C and aqueous polyurethane dispersion are not too different from each other. However, it was observed that C12 had an unacceptably long drying time (greater than 90 seconds). Example #4

[0102] The following formulas were produced and tested.

[0103] [Table 4]

[0104] Table 4: Comparative Formulas (acrylates / acrylate copolymer) ethylhexyl acetate + sucrose isobutyrate) Ingredients C 14 (Fia 7P) C 15 (Fia 28P) C 16 (Fia IIP) Acrylates / ethylhexyl acrylate copolymer 50% 45.82% 4.95% Caramel acetate isobutyrate 5% 15.03% 50% Water 44% 37.07% 39.46% Emulsifiers 0.56% - 5.56% Alcohol - 1.67% - Preservatives 0.44% 0.41% 0.03% Process used CAC Initial adhesion 3.5 3 2 Dry adhesion 5 3 1.5 Cohesion 1.5 3 2 Drying time(s) 80-90 80-90 80-90

[0105] The results in Table 4 show that when the acrylic latex polymer having a glass transition temperature (Tg) below about -40 °C and the saccharide esters of at least one C2-C4 organic acid are used without the aqueous polyurethane dispersion, the initial adhesion is worse than the initial adhesion for either of the raw materials alone (see Example 1). Example 5

[0106] The following formulas using each of the three among acrylic latex polymer having a glass transition temperature (Tg) below about -40 °C, aqueous polyurethane dispersion, and saccharide esters of at least one C2-C4 organic acid were prepared and tested.

[0107] [Table 5] Table 5 (Inventive and Comparative Formulas)

[0108] Ingredients Exl (Fia 34) Ex 2 (Fia 11B) Ex 3 (Fia 17P) Cl (Fia 18P) C2 (Fia 11G) S-Accharose Isobutyrate Acetate 30% 6.8% 30% 13.5% 6.80% Polyurethane-34 10.7% 18.6% 10% 13.36% 14.58% Acrylates / Ethylhexyl Acrylate Copolymer 18.3% 18.5% 10% 22.96% 25.05% Water 36.96% 53.56% 46.1% 46.34% 50.56% Emulsifiers — 0.75% 3.3% 1.5% 0.75% Alcohol 3.34% 0.75% — 1.5% 0.755% Preservatives 0.7% 0.97% 0.6% 0.84% ​​1.5% Thickener — 0.07% — — — Process used AB c AA Initial adhesion 5 4 4 4 4 Dry adhesion 5 4 4 3 5 Cohesion 5 4 4 3 2.5 Drying time (s) 60-80 60-80 80-90 80-90 60-80

[0109] The results in Table 5 show that when each of the three among acrylic latex polymer having a glass transition temperature (Tg) below about -40 °C, aqueous polyurethane dispersion, and saccharide esters of at least one C2-C4 organic acid are included and the ratio of the weight concentrations of acrylic latex polymer having a glass transition temperature (Tg) below about -40 °C to the aqueous polyurethane dispersion is 1.3 to 3:1, and about 10% to 20% by weight of acrylic latex polymer having a glass transition temperature (Tg) below about -40 °C, a balance of adhesive / cohesive properties which is surprisingly very good was obtained, with an acceptable drying time.

[0110] A person skilled in the art will recognize or be able to determine, using only simple routine experimentation, numerous equivalents to the specific embodiments of the invention described herein. These equivalents are assumed to be encompassed by the following claims.

Claims

Demands

1. Cosmetic adhesive composition comprising: - water; - about 10% to 20% by weight of one or more acrylic latex polymers having a glass transition temperature (Tg) below about -40 °C; - one or more aqueous polyurethane dispersions; - one or more saccharide esters of at least one C2-C4 organic acid; wherein the one or more acrylic latex polymers having a low glass transition temperature and the one or more aqueous polyurethane dispersions are present in a weight concentration ratio of the one or more acrylic latex polymers having a low glass transition temperature to the weight concentration of the one or more aqueous polyurethane dispersions which is in the range of about 1:3 to about 3:

1.

2. Composition according to claim 1, wherein one or more acrylic latex polymers having a low glass transition temperature and one or more aqueous polyurethane dispersions are present in a weight concentration ratio of one or more acrylic latex polymers having a low glass transition temperature to weight concentration of one or more aqueous polyurethane dispersions which is in the range of about 1:1 to about 2:

1.

3. Composition according to any one of the preceding claims, wherein one or more acrylic latex polymers having a glass transition temperature (Tg) below about -40 °C have a Tg below about -50 °C.

4. Composition according to any one of the preceding claims, wherein one or more aqueous polyurethane dispersions are formed by reacting a polyester prepolymer with a non-phenylated isocyanate.

5. Composition according to any one of the preceding claims, wherein the composition is substantially free from one or more C2-C6 waxes, oils, silicones and / or polyols.

6. Composition according to any one of the preceding claims, wherein the composition is substantially free of each of the C2-C6 waxes, oils, silicones and polyols.

7. Composition according to any one of the preceding claims, wherein the composition optionally includes one or more additional adhesive polymers, and wherein the total weight concentration of one or more acrylic latex polymers having a glass transition temperature (Tg) below about -40 °C; one or more aqueous polyurethane dispersions; one or more saccharide esters of at least one C2-C4 organic acid; and one or more additional adhesive polymers is in the range of about 30% to about 70%.

8. Composition according to any one of the preceding claims, wherein one or more aqueous polyurethane dispersions is / are present in the composition in a weight concentration of about 8% to about 20% of the composition.

9. Composition according to any one of the preceding claims, wherein one or more saccharide esters of at least one C2-C4 organic acid is / are present in an amount of 5% to about 30% by weight of the composition.

10. A method for attaching a false eyelash / eyebrow to a corresponding natural eyelash / eyebrow, comprising: - applying the composition according to any one of the preceding claims to a surface selected from the false eyelash / eyebrow, the corresponding natural eyelash / eyebrow, a skin surface or combinations thereof to form at least one active adhesive surface; and - bringing the at least one active adhesive surface into contact with a corresponding coupling surface to form an augmented eyelash / eyebrow.