HYBRID COMPOSITION FOR NAILS

Abstract

HYBRID NAIL COMPOSITION A hybrid nail cosmetic composition may be provided. The composition may include an ultraviolet (UV) gel portion and a solvent-based portion. The UV gel portion may include a plurality of UV-curable materials and a photoinitiator. A plurality of UV-curable materials, the plurality of UV-curable materials being present in a total amount of at least 19% by weight of the nail cosmetic composition, the plurality of UV-curable materials including a difunctional acrylate oligomer; The solvent-based portion may include a plurality of solvents. Figure for abstract: none

Description

Title of the invention: HYBRID COMPOSITION FOR NAILS Technical field

[0001] The present disclosure relates to nail compositions, such as UV curable nail compositions. CONTEXT

[0002] Cosmetic nail formulations ideally meet many consumer needs and desires. For example, it is often desirable for nail formulations to have a target color, be usable for an extended period (e.g., a 2-week wear period, with no substantial color change, and high chip resistance), and yet be easy to remove. Many features are considered technically incompatible. Formulators end up accepting compromises to achieve different goals. For example, a formulator may need to use an ingredient that may cause irritation, but extends the life of the formula on the nails. Such compromises are undesirable.

[0003] Therefore, what is needed is a safer color coat formulation that can still achieve a long usage period (e.g., 2 weeks of wear) and can be removed relatively easily. BRIEF SUMMARY

[0004] A cosmetic nail composition may be provided. The cosmetic nail composition may include an ultraviolet (UV) gel portion and a solvent-based portion. The UV gel portion may include a plurality of UV-curable materials and a photoinitiator (which may be a Type I photoinitiator, such as ethyl trimethylbenzoyl phenylphosphinate). The plurality of UV-curable materials may be present in a total amount of at least 19% by weight (such as 19-50%) of the cosmetic nail composition. The solvent-based portion may include a plurality of solvents.

[0005] The plurality of UV-curable materials may include a difunctional acrylate oligomer. The difunctional acrylate oligomer may be a urethane monomer, and the plurality of UV-curable materials may include the urethane monomer (such as a urethane acrylate monomer) and a polymerizable (meth)acrylate (such as pyromellitic dimethacrylate). The urethane acrylate monomer may be present in an amount of 8 to 15% by weight of the composition, and the pyromellitic dimethacrylate may be present in an amount of 2 to 8% by weight of the composition.

[0006] The UV gel portion may be present in a total amount of 19 to 50% by weight of the cosmetic composition for nails. The photoinitiator may be present in a total amount of 3 to 6% by weight of the cosmetic composition for nails.

[0007] The solvent-based portion may include at least one film-forming agent. The at least one film-forming agent may include a cellulosic agent (such as nitrocellulose and / or cellulose acetate butyrate). The at least one film-forming agent may include an acrylate film-former (such as an acrylate copolymer, an acrylate / isobornyl acrylate copolymer, and / or a tricyclodecanediethanol diacrylate). The at least one film-forming agent may include one or more co-film-forming agents (such as adipic acid / neopentyl glycol / trimellitic anhydride copolymer). The co-film-forming agent may include an epoxy resin (such as a tosylamide epoxy resin). In some embodiments, the acrylate film-forming agent(s) is / are present in a total amount, by weight, less than both the total amount of cofilm-forming agent(s) and the total amount of cellulose film-forming agent(s).

[0008] The cosmetic nail composition may include a colorant. The composition may include at least one additional component, the at least one additional component being present in a total amount not exceeding 5% by weight of the cosmetic nail composition. The cosmetic nail composition may include a filler, a pH correcting agent, a UV absorbing agent, or a combination thereof.

[0009] In a particular embodiment, (i) the plurality of UV curable materials may include a first UV curable material and a second UV curable material, wherein the first UV curable material may be present in an amount of 8-15% by weight of the nail cosmetic composition, and the second UV curable material may be present in an amount of 2-8% by weight of the nail cosmetic composition, (ii) the photoinitiator may be present in an amount of 2-8% by weight of the nail cosmetic composition, (iii) the plurality of solvents may be present in a total amount of 50-70% by weight of the nail cosmetic composition, (iv) the nail cosmetic composition may also comprise: (a) a plurality of film-forming agents which may be present in a total amount of 5-20% by weight of the nail cosmetic composition,(b) a UV absorbing agent which may be present in a total amount not exceeding 1% by weight of the nail cosmetic composition, (c) a pH adjusting agent which may be present in a total amount not exceeding 1% by weight of the nail cosmetic composition, (d) a filler which may be present in a total amount not exceeding 2% by weight of the nail cosmetic composition, (e) an epoxy resin which may be present in a total amount not exceeding 10% by weight of the nail cosmetic composition, and (f) a colorant which may be present in a total amount not exceeding 2% by weight, of the cosmetic nail composition, the cosmetic nail composition being substantially free of all other materials.

[0010] In various respects, a method may be used for providing a nail composition with improved wear. The method may include applying a composition as disclosed herein to a nail, and curing the composition by exposing the composition to ultraviolet (UV) light. DETAILED DESCRIPTION

[0011] The following description and drawings merely illustrate the principles of the invention. It will therefore be appreciated that those skilled in the art will be able to devise various arrangements which, although not explicitly described or shown herein, embody the principles of the invention and are included within its scope. Furthermore, all examples cited herein are primarily and expressly intended to be used for illustrative purposes only to assist the reader in understanding the principles of the invention and the concepts contributed by the inventor(s) to the advancement of the art and are to be construed as being without limitation to those specifically cited examples and conditions. Furthermore, the term "or," as used herein, refers to a non-exclusive or, unless otherwise indicated (e.g., "either" or "or in the alternative").Likewise, the various embodiments described herein are not necessarily mutually exclusive, as certain embodiments may be combined with one or more other embodiments to form new embodiments.

[0012] The numerous innovative teachings of the present application will be described with particular reference to the presently preferred exemplary embodiments. However, it should be understood that this class of embodiments provides only a few examples of the numerous advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily limit any of the various claimed inventions. Furthermore, certain statements may apply to some inventive features, but not to others. Those skilled in the art informed by the teachers herein will realize that the invention is also applicable to various other technical fields or embodiments.

[0013] As used herein, the term "at least one" means one or more and therefore includes individual components as well as mixtures / combinations.

[0014] Other than in the working examples, or unless otherwise indicated, all numbers expressing quantities of ingredients and / or reaction conditions must be understood as being modified in all circumstances by the term “approximately,” meaning within 10% of the number indicated.

[0015] As used herein, the term "volatile" means having a flash point below 100°C.

[0016] As used herein, the term "non-volatile" as used herein means having a flash point above about 100°C.

[0017] As used herein, the term "anhydrous" refers to compositions that contain less than 1% water (by weight). Preferably, the anhydrous compositions of the present invention contain less than 0.5% water, and preferably no water.

[0018] As used herein, the term "substantially free (of a component)" refers to compositions that do not contain an appreciable amount of the component, e.g., 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.

[0019] As used herein, the term "essentially free (of a component)" means that the systems or compositions do not contain an appreciable amount of the component, e.g., not more than about 0.1% by weight, or not more than about 0.01% by weight, based on the weight of the composition. As used herein, the term "free" or the term "totally free (of a component)" as defined herein means that the systems or compositions do not contain the component to any degree measurable by standard means.

[0020] The compositions and methods of the present invention may "comprise", "consist of", or "consist essentially of" the essential elements and limitations of the invention described herein, as well as any additional or optional ingredients, components or limitations described herein or otherwise useful. For the purposes of the compositions and methods of the present invention where the invention "consists essentially of" the identified ingredients and / or in the method steps, the "basic and novel property" of these compositions and / or methods is "a UV-curable, chisel-resistant nail composition with wear performance and chip resistance comparable to conventional solvent-based nail formulations, which is safer than conventional UV gel formulations."

[0021] A cosmetic composition for nails may be provided.

[0022] The disclosed compositions may be considered a combination of portions of a UV gel formulation with portions of a solvent-based formulation. More specifically, the cosmetic nail composition may include a UV gel portion and a solvent-based portion. The composition is preferably substantially free, essentially free, or free of water. In a preferred embodiment, the composition is an anhydrous composition.

[0023] Portion of UV gel.

[0024] The UV gel portion may include a plurality of UV curable materials and a photoinitiator. Preferably, the UV gel portion consists of the UV curable materials and the photoinitiator.

[0025] The UV gel portion may be present in a total amount of at least 19% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of 19 to 50% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of 19 to 50% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of 15 to 50% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 50% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 45% by weight of the nail cosmetic composition.In some embodiments, the UV gel portion may be present in a total amount of up to 40% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 35% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 34% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 30% by weight of the nail cosmetic composition. In some embodiments, the UV gel portion may be present in a total amount of up to 25% by weight of the nail cosmetic composition.In some embodiments, the UV gel portion may be present in a total amount of up to 20% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of at least 15% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of at least 16% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of at least 17% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of at least 18% by weight of the nail cosmetic composition. In some cases, the UV gel portion may be present in a total amount of at least 19% by weight of the nail cosmetic composition.In some cases, the UV gel portion may be present in a total amount of at least 20% by weight of the cosmetic nail composition.

[0026] UV curable materials.

[0027] The plurality of UV curable materials may include an acrylate oligomer functional.

[0028] The difunctional acrylate oligomer may include a urethane monomer. The urethane monomer may be a urethane acrylate monomer. Examples of suitable urethane oligomers include reactive multifunctional oligomers such as polyether urethane acrylates, allyl-functional urethane, polybutadiene-based urethane acrylates, polyethylene-polybutylene urethane acrylates, and aliphatic or aromatic urethane acrylates. A preferred embodiment utilized a urethane-acrylate monomer.

[0029] The difunctional acylate oligomer may be present in a total amount of 5 to 25%. In some embodiments, the difunctional acylate oligomer may be present in a total amount of 8 to 20%. In some embodiments, the difunctional acylate oligomer may be present in a total amount of 10 to 20%.

[0030] The plurality of UV-curable materials may also include a polymerizable (meth)acrylate. In one embodiment, the term "(meth)acrylate" refers to moieties having an acrylate group (CH2=CHCOO—) or a methacrylate group (CH2=CMeCOO—). The polymerizable (meth)acrylate may be a (meth)acrylic ester, which includes acrylic and methacrylic acid esters.

[0031] Non-limiting examples of polymerizable monofunctional (meth)acrylates include methyl (meth)acrylate, ethyl (meth)acrylate, hydroxypropyl (meth)acrylate, butyl (meth)acrylates, hydroxyethyl (meth)acrylates, butoxyethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, ethoxyethyl (meth)acrylate, t-butylaminoethyl (meth)acrylate, methoxyethylene glycol (meth)acrylate, phosphoethyl (meth)acrylate, methoxypropyl (meth)acrylate, methoxyethylene glycol (meth)acrylate, phenoxyethylene glycol (meth)acrylate, phenoxypolyethylene glycol (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, 2-(meth)acryloxyethylsuccinic acid, 2-(meth)acryloylethylphthalic acid, 2-(meth)acryloyloxypropylphthalic acid, stearyl (meth)acrylate, isocarboxylic (meth)acrylate, 3-chloro-2-hydroxypropyl (meth)acrylates,tetrahydrofuryl (meth)acrylate, methacryloyloxyethyl trimellitic anhydride, (meth)acrylamides and allyl monomers.

[0032] Non-limiting examples of polymerizable difunctional (meth)acrylic esters include 1,4 butane di(meth)acrylate, 1,6 hexananediol di(meth)acrylate, alkoxylated hexane di(meth)acrylate, 1,9 nonanediol di(meth)acrylate, 1,10 decanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate, alkoxylated neopentyl glycol di(meth)acrylate, 2-methyl-1,8-octane di(meth)acrylate, cyclohexane dimethanol di(meth)acrylate, glycerin di(meth)acrylate, ethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, polypropylene glycol di(meth)acrylate, ethoxylated propylene glycol di(meth)acrylate, ethoxylated polypropylene glycol di(meth)acrylate, polyethoxypropoxy di(meth)acrylate, ethoxylated bisphenol di(meth)acrylate, propoxylated bisphenol A di(meth)acrylate, propoxylated bisphenol A di(meth)acrylate, glycidyl bisphenol A methacrylate, tricyclodecanediethanol di(meth)acrylate, glycerin di(meth)acrylate, ethoxylated glycerin di(meth)acrylate, bis acrylamides, bis allyl ethers and allyl (meth)acrylates.

[0033] Non-limiting examples of polymerizable higher tri- and / or (meth)acrylates include trimethylol propane tri(meth)acrylate, ethoxylated glycerin tri(meth)acrylate, ethoxylated trimethylol propane tri(meth)acrylate, ditrimethylol propane tetra(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, propoxylated pentaerythritol tetra(meth)acrylate, ethoxylated pentaerythritol, dipentaerythritol hexa(meth)acrylate, dipentaerythritol penta(meth)acrylate and ethoxylated isocyanuric acid tri(meth)acrylates.

[0034] Non-limiting examples of polymerizable (meth)acrylates also include monomers containing acid groups, such as (meth)acrylic acid, bis(glyceryl dimethacrylate) pyromellitate, methacryloyloxyethyl phthalate pyromellitate dimethacrylate, methacryloyloxyethyl maleate, hydroxyethyl 2-methacrylate / succinate, glyceryl 1,3-dimethacrylate adduct, and glyceryl 1,3-dimethacrylate succinate adduct.

[0035] In a preferred embodiment, pyromellitic dimethacrylate is used.

[0036] In some embodiments, the polymerizable (meth)acrylate may be present in a total amount of 3 to 15% by weight of the cosmetic nail composition. In some embodiments, the polymerizable (meth)acrylate may be present in a total amount of 4 to 10% by weight of the cosmetic nail composition. In some embodiments, the ratio, by weight, of difunctional acylate oligomer to polymerizable (meth)acrylate is about 2:1.

[0037] Photoinitiator.

[0038] The photoinitiator may be a Type I photoinitiator. Non-limiting examples of Type I photoinitiators include diphenyl-(2,4,6-trimethylbenzoyl)-phosphine oxide, ethyl (2,4,6-trimethylbenzoyl)-phenylphosphinate, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butan-1-one, 2-dimethylamino-2-(4-methyl-benzyl)-1-(4-morpholin-4-yl-phenyl)-butan-1-one and 2-methyl-1-[4(methoxythio)-phenyl]-2-morpholinopropan-2-one. Combinations of Type I photoinitiators may also be used. A preferred photoinitiator is ethyl trimethylbenzoyl phenylphosphinate.

[0039] The photoinitiator may be present in a total amount of 3 to 6% by weight of the cosmetic nail composition.

[0040] Solvent-based portion.

[0041] The solvent-based portion may include a plurality of solvents. The solvent-based portion may include one or more film formers. The solvent-based portion may include a colorant. The solvent-based portion may include one or more additional components, such as a UV absorber, a pH adjuster, and / or a filler.

[0042] The solvent-based portion may be present in a total amount of 65%, 70% or 75% up to 80%, 83% or 85% by weight of the composition. In some embodiments, the solvent-based portion may be present in a total amount of 65% to 85% by weight of the composition. In some embodiments, the solvent-based portion may be present in a total amount of 75% to 83% by weight of the composition.

[0043] Solvents

[0044] The solvent may be part of an acetate-rich solvent system. By "acetate-rich solvent system" is meant that the proportion of acetate compounds in the solvent system is at least about 30% by weight, such as at least about 50% by weight, such as at least about 70% by weight, such as at least about 80% by weight, such as at least about 85% by weight, when these percentages are relative to all the solvents in the composition.

[0045] The plurality of solvents may be present in a total amount of at least 50%, at least 55% or at least 60% by weight of the cosmetic nail composition.

[0046] Suitable acetate compounds include, for example, C1-C4 alkyl acetates such as ethyl acetate, propyl acetate, amyl acetate and butyl acetate.

[0047] The solvents used may have a molecular weight of less than or equal to 200. One or more of the solvents (and preferably all of the solvents) may have a boiling point between 55°C and 250°C. In some embodiments, one or more of the solvents may have a boiling point between 120°C and 250°C.

[0048] In some embodiments, the composition may include a plurality of acetate compounds. In some embodiments, the plurality of acetate compounds may be present in a total amount of at least 50% by weight of the composition. In one embodiment, two acetate compounds are each present in an amount of at least 20% by weight of the composition, and any other acetate compounds are present in a total amount of less than 1% by weight of the composition.

[0049] The plurality of solvents may include non-acetate compounds that assist in dissolving other components in the system, such as, for example, nitrocellulose and / or other film formers. This may include C2-C5 monohydric alcohols such as isopropanol or ethanol. The C2-C5 monohydric alcohols may be present in a total amount of not more than 10%, not more than 8%, not more than 6%, or not more than 4% by weight of the composition.

[0050] The plurality of solvents may include a volatile oil. As used herein, the term "oil" refers to any fatty substance in liquid form at room temperature (25°C) and atmospheric pressure (1,013,10 5 Pa). As used herein, the term "volatile oil" refers to an oil having, in particular, a non-zero vapor pressure, at room temperature and atmospheric pressure, in particular a vapor pressure ranging from 2.66 Pa to 40,000 Pa, in particular from 2.66 Pa to 13,000 Pa, and more particularly from 2.66 Pa to 1,300 Pa.

[0051] The volatile oil may be hydrocarbon-based and non-polar. Non-limiting examples of volatile non-polar hydrocarbon oils include oils having 8 to 16 carbon atoms, such as C8-C16 branched alkanes, such as isododecane, isodecane, and / or isohexadecane. In one embodiment, the volatile oil is isododecane.

[0052] The volatile oil, if present, may be present in a total amount not exceeding 5%, 4%, 3%, 2% or 1.5% by weight of the composition.

[0053] The plurality of solvents may include at least one benzoic acid derivative, one citric acid derivative, and / or one isobutyrate derivative. In one embodiment, at least one benzoic acid derivative, at least one citric acid derivative, and at least one isobutyrate derivative are present.

[0054] In some embodiments, the benzoic acid derivative may be a dibenzoate ester, including, but not limited to, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate.

[0055] In some embodiments, the citric acid derivative may be an optionally hydroxylated triester of a C2-C8 tricarboxylic acid and a C2-C8 alcohol, such as citric acid esters, such as trioctyl citrate, triethyl citrate, acetyl tributyl citrate, tributyl citrate, or acetyl tributyl citrate.

[0056] In some embodiments, the isobutyrate derivative may be a C1-C6 carboxylic acid ester of sucrose such as sucrose acetate isobutyrate.

[0057] In some embodiments, at least one benzoic acid derivative, citric acid derivative, and / or isobutyrate derivative may include dipropylene glycol dibenzoate, tributyl citrate, acetyl tributyl citrate, and sucrose acetate isobutyrate.

[0058] The at least one benzoic acid derivative, citric acid derivative and / or derivative isobutyrate may be present in a total amount ranging from about 0.5%, 2% or 3% to about 3%, 4%, 5% or 8% by weight of the composition. In one embodiment, the total amount is from 3% to 4% by weight of the composition.

[0059] Film-forming agents.

[0060] The solvent-based portion may include at least one film-forming agent. The at least one film-forming agent may be present in a total amount of 5% to 15% by weight of the composition. In some embodiments, the at least one film-forming agent may be present in a total amount of less than 10% (or at most 10%) by weight of the composition, such as 6% to 10% by weight of the composition.

[0061] The at least one film-forming agent may include a cellulose film-forming agent, an acrylate film-forming agent, and / or a co-film-forming agent.

[0062] Non-limiting examples of cellulose film-forming agents include nitrocellulose, ethylcellulose, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, or mixtures thereof.

[0063] In some embodiments, a plurality of cellulose film-forming agents are present. In some embodiments, a single cellulose film-forming agent is present. The one or more cellulose film-forming agents may be present in a total amount of 6% to 10% by weight of the composition, such as 7% to 9%.

[0064] Non-limiting examples of acrylate film formers include acrylates copolymer, acrylates / isobornyl acrylate copolymer, acrylic acid / isobutyl acrylate / isobornyl acrylate copolymer, acrylates / stearyl methacrylate copolymer, acrylate / trimethyl polysiloxymethacrylate copolymer, acrylates / dimethicone copolymer, octylacrylamide / acrylates / methacrylates / butylaminoethyl methacrylate copolymer, VA / butyl maleate / isobornyl acrylate copolymer, acrylates / t-butylacrylamide copolymer and acrylates / dimethylaminoethyl methacrylate copolymer. In one embodiment, the acrylate polymer includes an acrylate copolymer and an acrylate / isobornyl acrylate copolymer.

[0065] The one or more acrylate film-forming agents may be present in a total amount of from 0.5%, 1% or 1.5% up to 2%, 2.5% or 3% by weight of the composition. In one embodiment, a plurality of acrylate film-forming agents are present, the first acrylate film-forming agent being present in an amount of at least 1.5% by weight of the composition, and the composition being substantially free or essentially free of all other acrylate film-forming agents (such that all other acrylate film-forming agents are present in a total amount of less than 0.1% by weight of the composition).

[0066] Non-limiting examples of cofilm-forming agents include phthalic anhydride / glycerin / glycidyl decanoate copolymer, adipic acid / crosslinked copolymer diethylene glycol / glycerin, adipic acid / neopentyl glycol / trimellitic anhydride copolymer, tosylamide / epoxy resin and hydrogenated acetophenone / oxymethylene copolymer.

[0067] In some embodiments, the cofilm-forming agents may include an epoxy resin or a polyester resin.

[0068] The cofilm-forming agent(s) may be present in a total amount of up to 8%, 9%, or 10% by weight of the composition. In some embodiments, the composition may include a plurality of cofilm-forming agents, including (i) an epoxy resin (such as tosylamide / epoxy resin) in an amount of 5% to 10% by weight of the composition, and (ii) one or more additional cofilm-forming agents, the additional cofilm-forming agents being present in a total amount of 0.1% to 0.5% by weight of the composition.

[0069] Dyes

[0070] The composition may include one or more colorants. Any colorant typically found in nail compositions may be used. Non-limiting examples of colorants include lipophilic dyes, pigments and pearlescent agents, and mixtures thereof.

[0071] Non-limiting 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.

[0072] The pigments may be white or colored, inorganic and / or organic, and coated or uncoated. Examples include inorganic pigments such as titanium dioxide, optionally surface-treated, zirconium or cerium oxides and iron or chromium oxides, manganese violet, ultramarine blue, chromium hydrate, and ferric blue. Organic pigments also 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&D Red No. 34, as well as lakes such as D&C Yellow Lake No. 5 and D&C Red Lake No. 2.

[0073] In some embodiments, pearlescent pigments may be selected, for example, from white pearlescent pigments, such as mica coated with titanium oxide or bismuth oxychloride, colored pearlescent pigments, such as mica coated with titanium oxide with iron oxides, mica coated with titanium oxide with in particular ferric blue or chromium oxide, or mica coated with titanium oxide with an organic pigment of the aforementioned type, and pearlescent pigments based on bismuth oxychloride.

[0074] The colorant may be present in the nail composition in a total amount ranging from 0.01% to 10% by weight, preferably from 0.1% to 5% by weight, and more preferably from 0.5% to 2% by weight of the composition. In some embodiments, the colorant may be present in a total amount of less than 1% by weight of the composition. In some embodiments, the colorant may be present in a total amount of less than 20% by weight of the composition. In some embodiments, the colorant may be present in a total amount of less than 15% by weight of the composition. In some embodiments, the colorant may be present in a total amount of less than 10% by weight of the composition. In some embodiments, the colorant may be present in a total amount of less than 5% by weight of the composition. In some embodiments, the colorant may be present in a total amount of at least 0.01% by weight of the composition. In some embodiments, the colorant may be present in a total amount of at least 1% by weight of the composition.In some embodiments, the colorant may be present in a total amount of at least 5% by weight of the composition.

[0075] Additional components

[0076] The cosmetic nail composition may include one or more additional components. In one embodiment, the cosmetic nail composition may be substantially free of any additional components (i.e., the composition may include the UV gel portion, solvents, film formers, and colorants, and may be substantially free of any other components).

[0077] In some embodiments, the additional component(s) may be present in a total amount not exceeding 5% by weight of the composition. The additional components may include a filler, a pH correcting agent, a UV absorbing agent, or a combination thereof.

[0078] Charges.

[0079] Non-limiting examples of fillers (or fillers) include ethyl methacrylate / glycol dimethacrylate crosspolymer, vinyl dimethicone / methicone silsesquioxane crosspolymer, methyl methacrylate crosspolymer, nylon-12, polyamides, polyethylene, talc, titanium dioxide, silica, aluminum starch octenylsuccinate, clays (such as hectorite clay, including stearalkonium hectorite), silicas, polymethylsilsequioxane, and mixtures thereof.

[0080] In some embodiments, a plurality of fillers are present. In some embodiments, a single filler is used. In some embodiments, one or more fillers is / are present in a total amount of up to 2% by weight of the composition. In some embodiments, one or more fillers is / are present in a total amount of up to 1.5% by weight of the composition. In some embodiments, a or more fillers is / are present in a total amount of 1% maximum by weight of the composition.

[0081] UV absorbing agents.

[0082] The UV absorbing agent may be any suitable UV absorbing agent or filter, such as one or more hydrophobic or water-insoluble organic UV filters. Non-limiting examples of such filters include the following:

[0083] Anthranilic compounds: Menthyl anthranilate.

[0084] Dibenzoylmethane compounds: Butyl methoxydibenzoylmethane and isopropyl dibenzoylmethane.

[0085] Cinnamic compounds: Ethylhexyl methoxycinnamate, isopropyl methoxycinnamate; isopropoxy methoxycinnamate; isoamyl methoxycinnamate, cinoxate (2-ethoxyethyl-4-methoxycinnamate); DEA methoxycinnamate; diisopropyl methyl cinnamate and glyceryl ethylhexanoate dimethoxycinnamate.

[0086] Salicylic compounds: Homosalate (homomentyl salicylate), ethylhexyl salicylate, glycol salicylate; butyloctyl salicylate; phenyl salicylate; dipropylene glycol salicylate and TEA salicylate.

[0087] Camphor compounds, in particular benzylidenecamphor derivatives: 3-benzylidenecamphor, 4-methylbenzylidenecamphor, benzylidenecamphor sulfonic acid, camphor benzalkonium methosulfate and polyacrylamidomethylbenzylidenecamphor.

[0088] Benzophenone Compounds: Benzophenone-1 (2,4-dihydroxybenzophenone), ben- zophenone-2 (tetrahydroxybenzophenone), Benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone, benzophenone-4 (hydroxymethoxybenzophonene sulfonic acid), benzophenone-5 (sodium hydroxymethoxybenzophenone sulfonate), benzophenone-6 (dihydroxydimethoxybenzophenone), benzophenone-8, benzophenone-9 (disodium dihydroxydimethoxybenzophenoedisulfonate), benzophenone-12 and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate.

[0089] Compounds [3,[3-diphenylacrylate: Octocrylene and Etocrylene.

[0090] Triazine compounds: diethylhexyl butamido triazone, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone.

[0091] Benzotriazole compounds, in particular, phenylbenzotriazole derivatives: -(2H-benzotriazol-2-yl)-6-dodecyl-4-methylpheno, branched and linear and those described in US Patent No. 5,240,975.

[0092] Benzalmalonate compounds: dineopentyl 4'-methoxybenzalmalonate, and polyorganosiloxane comprising benzalmalonate functional groups, such as poly-silicone-15, marketed under the brand name “Sol SLX” by Hoffmann-LaRoche.

[0093] Benzimidazole compounds, in particular phenylbenzimidazole derivatives.

[0094] Imidazoline compounds: Ethylhexyl dimethoxybenzylidene dioxohni-dazoline propionate,

[0095] Bis-benzoazolyl compounds: Derivatives as described in EP-669,323 and US Patent No. 2,463,264.

[0096] Para-aminobenzoic acid compounds: PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, glyceryl PABA and PEG-25 PABA.

[0097] Methylene bis-(hydroxyphenylbenzotriazol) compounds, such as 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methyl-phenol] in solid form, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] in micronized form in an aqueous dispersion, and derivatives as described in US Patent Nos. 5,237,071, 5,166,355, GB-2,303,549, DE-197,26,184 and EP-893,119, and Drometrizole trisiloxane as shown below.

[0098] Benzoxazole compounds: 2,4-bis[5-l(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine.

[0099] In some embodiments, a plurality of UV absorbing agents are present. In some embodiments, a single UV absorbing agent is used. In some embodiments, one or more UV absorbing agents is / are present in a total amount of up to 1% by weight of the composition. In some embodiments, one or more UV absorbing agents is / are present in a total amount of up to 0.5% by weight of the composition. In some embodiments, one or more UV absorbing agents is / are present in a total amount of up to 0.1% by weight of the composition.

[0100] pH correctors

[0101] The composition may also include acidic and / or alkaline pH adjusters, which are well known in the art. These pH adjusters include, but are not limited to, sodium metasilicate, silicate compounds, citric acid, ascorbic acid, and carbonate compounds.

[0102] In some embodiments, one or more pH adjusters is / are present in a total amount of up to 1% by weight of the composition. In some embodiments, one or more pH adjusters is / are present in a total amount of up to 0.5% by weight of the composition. In some embodiments, one or more pH adjusters is / are present in a total amount of up to 0.1% by weight of the composition.

[0103] In some embodiments, the composition may include the UV gel portion, solvent(s), film former(s), colorant(s), filler(s), UV absorbing agent(s), and pH adjuster(s), and may be substantially free, essentially free, or free of any other components.

[0104] In various respects, a method may be used to provide a nail composition with improved wear. The method may include applying a composition as disclosed herein to a nail, and curing the composition by exposing the composition to ultraviolet (UV) light. After wear (e.g., for an extended period), the composition may then be removed from the nail, with less damage to the nail compared to conventional long-wear UV gel formulations. Examples.

[0105] Example 1.

[0106] Table 1 below shows an embodiment of a nail formulation.

[0107] [Tableauxl] Material % by weight UV gel portion 19-30% UV curable materials 15-23% Difunctional acrylate oligomer 8-15% Polymerizable (meth)acrylate 2-8% Photoinitiator 2-8% Solvent-based portion 70-81% Solvents 50-70% Acetates (ethyl, propyl, butyl) 45-60% C2-C5 monohydric alcohols (ethanol, isopropanol) 3-5% Volatile C8-C16 hydrocarbon 1-2% Benzoic acid derivative, citric acid derivative and / or isobutyrate derivative 3-5% Film-forming agents 5-20% Celluloses (Nitrocellulose) 3-10% Acrylates 1-2% Cofilm-former (epoxy) 3-10% Cofilm-former (other) <1% Colorant <2% Components additional (pH regulators, fillers, UV absorbing agents) <2%

[0108] Example 2.

[0109] Three formulations were made, similar to the formula of Example 1, where the percentage of UV curable materials was allowed to vary, to be QS with acetates, but the formulations were otherwise identical to each other. The three formulations contained 8%, 11% and 19% UV curable materials.

[0110] To evaluate the samples, each test formula was painted onto a nail spoon, applying 2 coats of each formula to a target nail spoon. Each nail spoon was then cured under a UV LED lamp for 30 seconds. After curing with the UV light, each nail spoon was aged at room temperature for 24 hours before shrinkage testing.

[0111] The removal test was carried out as follows. A cotton pad was saturated with 1 ml of acetone. The cotton pad was rubbed on the nail spoon in one direction, several times, until the color coating was removed or the acetone on the cotton pad was gone. The number of strokes (or passes) required to remove the color was counted. A higher number of strokes in this removability test indicates that the formulation is more difficult to remove and that the crosslink density is higher. The results are shown in Table 2 below.

[0112] [T ableaux2] Spoon a % by weight of materials Number of strokes required UV curable nails # 1 19% >70 2 15% 32 3 11% 27 4 8% 20

[0113] The improvement in wear performance when the amount of UV-curable materials was at least 19% by weight of the composition was unexpected and surprising. Since there is virtually no increase in removal resistance from 11% to 15%, the large increase in removal resistance from 15% to 19% is a very surprising advantage.

[0114] Furthermore, further testing has shown that the formulations can provide 2 weeks of wear, with high gloss performance and chip resistance. In addition, when removing nail polish, the time spent soaking nails in acetone is significantly reduced compared to conventional UV gel formulations - from 10 minutes or more to less than 2 minutes.

[0115] Various modifications may be made to the various aspects disclosed herein, such modifications being contemplated as falling within the scope of the invention. For example, although a specific order of steps or arrangement of functional elements is shown in the various embodiments described herein, various other orders / arrangements of steps or functional elements may be used within the context of the various embodiments. Further, although modifications to the embodiments may be discussed individually, various embodiments may utilize multiple modifications simultaneously or in sequence, compound modifications, and the like.

[0116] Although various embodiments that incorporate the teachings of the present invention have been shown and described in detail herein, those skilled in the art may It is possible to conceive of many other varied embodiments which still incorporate these teachings. Thus, although the foregoing relates to various embodiments of the present invention, other and additional embodiments of the invention may be conceived without departing from their basic scope. As such, the proper scope of the invention should be determined according to the claims.

Claims

Claims

1. A cosmetic nail composition comprising: an ultraviolet (UV) gel portion comprising: a plurality of UV curable materials, the plurality of UV curable materials being present in a total amount of at least 19% by weight of the cosmetic nail composition, the plurality of UV curable materials including a difunctional acrylate oligomer; a photoinitiator and a solvent-based portion comprising a plurality of solvents.

2. The cosmetic nail composition of claim 1, wherein the difunctional acrylate oligomer comprises a urethane monomer, and the plurality of UV-curable materials consists of the urethane monomer and a polymerizable (meth)acrylate.

3. A cosmetic nail composition according to claim 2, wherein the urethane monomer is a urethane acrylate monomer, and the polymerizable (meth)acrylate is a pyromellitic dimethacrylate.

4. A cosmetic nail composition according to claim 3, wherein the urethane acrylate monomer is present in an amount of 8 to 15% by weight of the composition, and the pyromellitic dimethacrylate is present in an amount of 2 to 8% by weight of the composition.

5. The cosmetic nail composition of claim 1, wherein the UV gel portion is present in a total amount of 19 to 50% by weight of the cosmetic nail composition, and / or wherein the photoinitiator is present in a total amount of 3 to 6% by weight of the cosmetic nail composition.

6. The cosmetic nail composition of claim 1, wherein the solvent-based portion further comprises at least one film-forming agent.

7. A cosmetic nail composition according to claim 6, wherein the at least one film-forming agent comprises a cellulose film-forming agent, an acrylate film-forming agent and one or more co-film-forming agents.

8. A cosmetic nail composition according to claim 7, wherein the cellulose film-forming agent is nitrocellulose and / or cellulose acetate butyrate; wherein the acrylate film-forming agent includes a copolymer of acrylates, an acrylates / isobutyl acrylate copolymer and / or a tricyclodecanedimethanol diacrylate; and / or wherein the cofilm-forming agent includes an adipic acid / neopentyl glycol / trimellitic anhydride copolymer and / or a hydrogenated acetophenone / oxymethylene copolymer; and / or wherein the cofilm-forming agent comprises an epoxy resin, preferably a tosylamide epoxy resin.

9. A cosmetic nail composition according to claim 7, wherein the acrylate film-forming agent is present in a total amount, by weight, less than both the total amount of cofilm-forming agent and the total amount of cellulose film-forming agent.

10. The nail cosmetic composition of claim 1, wherein the plurality of UV-curable materials comprises a first UV-curable material and a second UV-curable material, the first UV-curable material being present in an amount of 8 to 15% by weight of the nail cosmetic composition, the second UV-curable material being present in an amount of 2 to 8% by weight of the nail cosmetic composition; wherein the photoinitiator is present in an amount of 2 to 8% by weight of the nail cosmetic composition; wherein the plurality of solvents is present in a total amount of 50 to 70% by weight of the nail cosmetic composition; wherein the nail cosmetic composition further comprises: a plurality of film formers present in a total amount of 5 to 20% by weight of the nail cosmetic composition;a UV absorber present in a total amount not exceeding 1% by weight of the cosmetic nail composition; a pH correcting agent present in a total amount not exceeding 1% by weight of the cosmetic nail composition; a filler present in a total amount not exceeding 2% by weight of the cosmetic nail composition. a colorant; wherein the cosmetic nail composition is substantially free of any other material.;