NAIL POLISH TOP COAT COMPOSITION

Abstract

NAIL POLISH TOPCOAT COMPOSITION The invention provides a composition for use on nails, comprising a solvent system that includes at least one non-aqueous volatile polar solvent; a water-insoluble nitrocellulose polymer; a silicone organic hybrid polymer; and an alkyd resin. It also provides methods, including those for use as a topcoat. Figure for abstract: none

Description

Title of the invention: NAIL POLISH TOP COAT COMPOSITION Technical field

[0001] The present invention relates to nail polish topcoat compositions, and specifically to nail polish topcoat compositions comprising a certain organic silicone hybrid polymer and an alkyd resin. BACKGROUND

[0002] Consumers use nail polish to cosmetically enhance the appearance of their nails or protect the nails from the harsh environment of their daily lives. This can be achieved using various coatings that include a base coat, a color coat, and / or a top coat where the base coat can provide adhesion to the nails, the color coats can enhance the color, and a top coat can provide shine (gloss).

[0003] Over time, nail polish applied to the nails loses its shine (gloss). The present inventors have now found a way to provide not only a high initial shine, but also long-lasting shine retention. BRIEF SUMMARY

[0004] The present invention relates to a nail polish topcoat composition (also referred to herein as a "nail topcoat composition" or simply a "composition"). The nail polish topcoat composition includes a solvent system. The solvent system includes at least one non-aqueous volatile polar solvent. The nail polish topcoat composition further includes a water-insoluble nitrocellulose polymer and a silicone organic hybrid polymer formed from at least one monomer comprising carboxylic acid and at least one vinyl monomer. The nail polish topcoat composition further includes an alkyd resin.

[0005] The organic silicone hybrid polymer may be a copolymer of vinyl acetate, vinyl silicone, C3-7 carboxylic acid and C7-45 vinyl alkyl ester. Advantageously, the organic silicone hybrid polymer may be a crosslinked polymer of crotonic acid / C8-12 isoalkyl vinyl esters / VA / bis-vinyldimethicone and / or be present at a concentration by weight in the nail topcoat composition that is from about 0.05% to about 2.5% by weight.

[0006] It may also be advantageous for the alkyd resin to be or include a phthalic anhydride / glycerol / glycidyl decanoate copolymer and / or to be present at a concentration by weight in the nail topcoat composition that is from about 8% to about 13%.

[0007] It may also be advantageous for the composition to be substantially free of colorant and free of UV-curable material.

[0008] It may also be advantageous for the at least one non-aqueous volatile polar solvent to include at least one volatile acetate, such as ethyl acetate and butyl acetate, such that when these compounds are present at a concentration by weight such that a total concentration by weight of ethyl acetate and butyl acetate in the nail topcoat composition is from about 50% to about 90%.

[0009] It may also be advantageous for the nail topcoat composition to further include sucrose acetobutyrate and / or acetyl tributyl citrate.

[0010] It may also be advantageous for the water-insoluble nitrocellulose polymer to be nitrocellulose such that it is present at a concentration by weight in the nail topcoat composition that is from about 5% to about 15%.

[0011] According to certain embodiments, the nail polish topcoat composition may meet a plurality, or even all, of these requirements listed above.

[0012] According to another aspect of the invention, a method of treating a nail is provided. The method includes applying to the nail the nail polish topcoat composition described above. Brief description of the drawings

[0013] An implementation of the present technology is described, by way of example only, with reference to the attached figure, in which:

[0014] [Fig-1] [Fig.l] shows a gloss (gloss) graph at 60 degrees on dry abrasion cycles for various compositions including different concentrations of alkyd resin and / or organic silicone hybrid polymer. DETAILED DESCRIPTION

[0015] As used herein, the term "at least one" means one or more and thus includes individual components as well as mixtures / combinations.

[0016] As used herein, the terms "include," "includes," and "including" are intended to be non-limiting.

[0017] Other than in the working examples, or unless otherwise indicated, all numbers expressing amounts (e.g., concentrations, ratios, and the like) of ingredients and / or reaction conditions are to be understood as being modified in all cases by the term "about," meaning to within 10% or 15% of the number indicated (e.g., "about 10%" means 8.5% to 11.5% such as 9% at 11%, and “about 2%” means from 1.7% to 2.3 such as from 1.8% to 2.2%).

[0018] Similarly, for ratios, the modifier "about" means to within 10% or 15% of the number. For example, about 4:1 means from 3.4:1 to 4.6:1, preferably from 3.6:1 to 4.4:1. As one skilled in the art will readily appreciate, when the first ingredient in a ratio is less than the second, then a ratio may be expressed "inversely." For example, if a second ingredient, B, is present in an amount or concentration 2.5 times greater than that of ingredient A, this may be identified as an A:B ratio of 1:2.5. "About 1:10" means from 1:8.5 to 1:11.5, preferably from 1:9 to 1:11. Unless otherwise indicated, all concentrations shown as percentages are concentrations by weight and also, unless otherwise indicated, relate to the entire nail topcoat composition.

[0019] As used herein, the term "active ingredient" means with respect to the amount

[0020] as a percentage of an ingredient or raw material, refers to 100% of the activity of the ingredient or raw material.

[0021] “Film-forming agent” or “film-forming polymer” or “resin” "Film former" as used herein means a polymer or resin that leaves a film on the substrate to which it is applied, for example, after a solvent accompanying the film former has evaporated, been absorbed into, and / or dissipated on the substrate. A "silicone film former" is a film former that includes at least one silicone (a silicone atom bonded directly to an oxygen atom and also to a carbon atom such as in an organic moiety).

[0022] “Liquid” or “liquid cosmetic” or “liquid composition” means a com position having a fixed volume, which flows to cover the bottom and adopts the shape of the portion of the container which it fills and is slightly compressible.

[0023] “Substituted” as used herein means comprising at least one substituent. Non-limiting examples of substituents include atoms, such as oxygen atoms and nitrogen atoms, as well as functional groups, such as amine groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen-containing groups, ester groups, thiol groups, sulfonate groups, thiosulfate groups, siloxane groups, and polysiloxane groups. The substituent(s) may be further substituted.

[0024] “Substantially free” as used herein means that although it is preferable that no amount of the specific component is present in the composition, it is possible that there are small amounts thereof in the compositions of the invention provided that these amounts do not substantially affect at least one, preferably essentially most of the advantageous properties of the compositions of the invention. In some embodiments, substantially free means less than about 2% of the identified ingredient, such as less than about 1%, such as less than about 0.5% based on the composition as a whole (or a particular component, if indicated). The term "anhydrous" means substantially free of water.

[0025] Numerical ranges include the bounds and are intended to include all combinations and subcombinations. For example, from about 5%, 10% or 15% to about 20%, 50% or 60% may refer to about 5% to about 20%, about 5% to about 50%, about 5% to about 60%, about 10% to about 20%, about 10% to about 50%, about 10% to about 60%, about 15% to about 20%, about 15% to about 50% or about 15% to about 60%. As used herein, a ratio range is intended to include each specific ratio within the subranges and a combination of subranges between the given ranges.

[0026] “Brightness” or “gloss” as used herein refers to the glossy sheen of surface. Glossometers are commonly used in nail polish art as well as other cosmetics and measure the amount of light reflected by the surface or film of interest. Gloss can be quantified, for example, as a percentage of reflection at different angles, specifically 20°, 60°.

[0027] 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.

[0028] The nail topcoat compositions of the present invention include a solvent system, a water-insoluble nitrocellulose polymer; a silicone organic hybrid polymer; and an alkyd resin. Each of these will be discussed in turn. SOLVENT SYSTEM

[0029] The nail topcoat compositions of the present invention include a solvent system. The function of the solvent system is to dissolve or disperse various components in the nail topcoat composition and to evaporate at a suitable rate to enable the relatively rapid formation of a film having desirable gloss and gloss retention properties.

[0030] The solvent system includes at least one non-aqueous volatile polar solvent. The non-aqueous volatile polar solvent is (1) "volatile" in that it evaporates at a rate at least as fast as butyl acetate; (2) is polar in that it includes at least one polar functional group (e.g., alcohol, ether, ester, ketone, hydroxyl, amine, amino, carboxyl, carbonyl and the like), and (3) “non-aqueous” in that it is not water and, in some embodiments, is not completely miscible with water in all concentrations at standard temperature and pressure.

[0031] According to some embodiments, the at least one non-aqueous volatile polar solvent includes an ester, such as one or more acetate compounds. In particularly notable embodiments, the acetate compound is selected from ethyl acetate, propyl acetate, butyl acetate, and combinations thereof. In some embodiments, the one or more acetate compounds are used as a majority portion of the at least one non-aqueous volatile polar solvent, meaning that the proportion by weight of the one or more acetate compounds in the total amount of at least one non-aqueous volatile polar solvent is greater than 50%, such as greater than about 75%, such as greater than about 90%.

[0032] In some embodiments, the at least one non-aqueous volatile polar solvent is present in the nail topcoat composition at a concentration by weight that is from about 50% or 60% to about 75%, 80% or 90%. In notable embodiments, the at least one non-aqueous volatile polar solvent comprises, has a majority fraction (and more particularly at least about 90% of the non-aqueous totally volatile polar solvents) that is a mixture of volatile acetates such as ethyl acetate and butyl acetate. In other notable embodiments, the nail topcoat composition has a total concentration by weight of ethyl acetate and butyl acetate in the nail topcoat composition of from about 50% to about 90%.

[0033] According to certain other embodiments, the at least one non-aqueous volatile polar solvent includes one or more monohydric alcohols, such as a C2-C5 monohydric alcohol such as ethanol or isopropanol. In certain embodiments, the one or more monohydric alcohols are used as a minor portion of the at least one non-aqueous volatile polar solvent, meaning that the proportion by weight of the one or more monohydric alcohols in the total amount of the at least one non-aqueous volatile polar solvent is less than 50%, such as less than about 25%, such as less than about 10%. WATER-INSOLUBLE NITROCELLULOSE POLYMER

[0034] The nail topcoat compositions of the present invention include a water-insoluble nitrocellulose polymer (e.g., cellulose nitrate). The nitrocellulose polymer may be formed by nitrating cellulose by exposure to acids such as nitric acid and / or sulfuric acid. Desirably, the nitrocellulose is soluble in the solvent system and more particularly soluble in the one or more non-aqueous volatile polar solvents.

[0035] The water-insoluble nitrocellulose polymer serves as a film-former in the com nail topcoat position. Nitrocellulose may be present at a concentration by weight in the nail topcoat composition of about 5%, 6% or 7% to about 10%, 12% or 15% by weight. ORGANIC HYBRID SILICONE POLYMER

[0036] In accordance with the present invention, nail compositions comprising at least one organic silicone hybrid polymer are provided. An organic silicone hybrid polymer is formed from at least one monomer comprising carboxylic acid and at least one vinyl monomer. By "vinyl monomer", as will be readily understood by those skilled in the art, is meant a monomer of formula H2C=CHR, where R represents a functional group, such as H, an alkyl ester, or the like. Furthermore, it is preferable that the at least one monomer comprising carboxylic acid and the at least one vinyl monomer are two distinct monomers. Preferably, the organic silicone hybrid polymer is selected from a silicone vinyl acetate compound and a crosslinked anionic copolymer composed of organic polymer blocks and silicone blocks, resulting in a multi-block polymer structure, or mixtures thereof.

[0037] In particular, suitable examples of the organic silicone hybrid polymer of the present invention include, but are not limited to, copolymers of vinyl acetate and vinyl silicone. These copolymers may optionally further include C3-7 carboxylic acid and / or C7-45 vinyl alkyl ester monomers.

[0038] Preferably, the organic silicone hybrid polymer is free of phenyl moieties.

[0039] In particular, suitable examples of the organic silicone hybrid polymer of the present invention include, but are not limited to, crosslinked anionic copolymers comprising at least one crosslinked polysiloxane structural unit. PCT Patent Application Publication No. WO 2011 / 069786 discloses examples of such compounds.

[0040] A preferred organic silicone hybrid polymer of the present disclosure is a compound having the INCI name Crotonic Acid / Vinyl C8-12 Isoalkyl Esters / VA / Bis-Vinyldimethicone Crosspolymer which is a copolymer of crotonic acid, vinyl C8-12 isoalkyl esters and vinyl acetate crosslinked with bis-vinyldimethicone. This organic silicone hybrid polymer is commercially available from Wacker Chemie AG under the trade name Wacker Belsil® PI 101 (may also be known under the trade name Wacker Belsil® P101) and may have an acid number of 28 to 33 mg KOH / g. Crotonic acid / C8-12 vinyl isoalkyl esters / VA / bis-vinyldimethicone crosslinked polymer is also known technically as crotonic acid / C8-12 vinyl isoalkyl esters / VA / divinyldimethicone crosslinked polymer.

[0041] Preferably, the at least one organic silicone hybrid polymer is present in the nail composition of the present invention in amounts of active material generally ranging from about 0.01% to about 5%, preferably from about 0.03% to about 3%, and more preferably from about 0.05% to about 2.5%, by weight, based on the total weight of the cosmetic composition, including all intermediate ranges and sub-ranges. ALKYD RESIN

[0042] According to the present invention, nail compositions comprising at least one alkyd resin are provided.

[0043] Preferably, the at least one alkyd resin is a polyester comprising fatty acid hydrocarbon chains. These resins may be obtained by polymerization of polyols and polyacids or their corresponding anhydride in the presence of fatty acids, where the fatty acids may be used "as is" or in the form of fatty acid triglycerides or in the form of oils during the synthesis of the alkyd resin. Due to the presence of fatty acid hydrocarbon chains in the alkyd resin, alkyd resins are generally defined by their oil length. Accordingly, the "oil length of an alkyd resin" is intended to mean the weight percentage of fatty acid hydrocarbon chains present in the alkyd resin.

[0044] Examples of suitable polyols that may be employed in the synthesis of alkyd resin include, but are not limited to, at least one of pentaerythritol, trimethylolpropane, trimethylolethane, neopentyl glycol, propylene glycol, ethylene glycol, 1,6-hexanediol, 1,4-butanediol, diethylene glycol and, in particular, glycerol.

[0045] Examples of suitable polyacid or anhydride that may be used in the synthesis of alkyd resins include, but are not limited to, at least one of isophthalic acid, terephthalic acid, trimellitic anhydride, maleic anhydride, adipic acid, fumaric acid, azelaic acid, sebacic acid and, in particular, phthalic anhydride.

[0046] Examples of suitable fatty acids that may be used in the synthesis of alkyd resins include, but are not limited to, at least one of fatty acids corresponding to the formula R—COOH, wherein R denotes a saturated or unsaturated hydrocarbon radical preferably having from 7 to 45 carbon atoms, preferably from 9 to 35 carbon atoms, preferably from 15 to 35 carbon atoms and preferably from 15 to 21 carbon atoms. Examples include palmitic acid, stearic acid, oleic acid, ricinoleic acid, linoleic acid, linolenic acid and, in particular, capric acid.

[0047] Fatty acids are present in the majority of naturally occurring oils, particularly in the form of triglycerides. Fatty acid triglycerides are esters resulting from the reaction of the three alcohol functional groups of glycerol with fatty acids, knowing that these fatty acids can be the same or different. Oils of natural origin can therefore be used during the polymerization. They can be chosen, for example, from linseed oil, tung oil, oiticica oil, soybean oil, sunflower oil, safflower oil, castor oil, coconut oil, olive oil, palm oil, rapeseed oil, peanut oil and tall oil.

[0048] Specific examples of acceptable alkyd resins include, but are not limited to, at least one of those sold under the names "Alukidir ODE 230 70 E" or "Alukidir ODE 230 70 V" (phthalic anhydride / glycerol / glyceryl decanoate copolymer in 70% ethyl acetate), "Necowel 581®" (50% in soybean oil), "Necowel 585®" (20% in sunflower oil), "Necowel 580®" (20% in sunflower oil), "Necowel 586 N®" (50% in soybean oil), "Necowel EP 1161®" (50% in soybean oil), "Necowel EP 1213®" (20% in oil), " Necowel EP 2009® (32% in sunflower oil), “Necowel EP 2019®” (20% in oil), “Necowel EP 2275®” (35% in oil), “Necowel EP 2329®” (34% in oil) and “Necowel EP 3016®” (30% in oil) by Ashland or “Uradil XP 515 AZ®” (73% in tall oil) or “Uradil XP 516 AZ®” (63% in tall oil) by DSM Resins.“Alukidir ODE 230 70 E” or “Alukidir ODE 230 70 V” (phthalic anhydride / glycerol / glycidyl decanoate copolymer in 70% ethyl acetate) is particularly preferred.

[0049] Preferably, the at least one alkyd resin is present in the nail composition of the present invention in amounts of active material generally ranging from about 0.5%, 0.7%, 0.8%, 0.9%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0%, 7.5% or 8.0% to about 8.0%, 9.0%, 10.0%, 11.0%, 12.0%, 13.0%, 14.0%, 15.0%, 16.0%, 17.0%, 18.0%. 19% or 20% and more preferably from about 8% to about 13%, by weight, based on the total weight of the cosmetic composition, including all intermediate ranges and sub-ranges. Further, the at least one alkyd resin and the organic silicone hybrid polymer may be present in the nail composition in a weight ratio of from about 5:1, 6:1 or 7:1 to about 7:1, 10:1, 15:1, 20:1, 30:1, 40:1, 50:1, 60:1, 70:1, 80:1, 90:1 or 100:1. OTHER INGREDIENTS

[0050] The nail topcoat compositions of the present invention may include various other ingredients without significantly compromising the beneficial properties.

[0051] For example, in some embodiments, plasticizers other than alkyd resin may be included in the nail topcoat composition. Examples of such other plasticizers include polar molecules having multiple ester groups such as those having a molecular weight in a range of about 250 or 400 to about 1000 or 1500. Examples include sucrose acetate butyrate and acetyl tributyl citrate. A further example of another plasticizer includes a cellulose ester of at least one C2-C4 organic acid. Examples include cellulose acetate butyrate. In some embodiments, the nail topcoat composition includes an ingredient selected from a group consisting of cellulose acetate butyrate, sucrose acetate butyrate, and acetyl tributyl citrate. Cellulose acetate butyrate is commercially available from Eastman Chemical such as CAB-381-0.5. Sucrose acetate butyrate is sold as SAIB 90 by Eastman Chemical of Kingsport, TN.Acetyl tributyl citrate is sold under the brand name Citroflex by Vertellus, or under the brand name Uniplex by Unitex Chemical of Greensboro, North Carolina. These other plasticizers may be present at concentrations ranging from about 1%, 2%, or 3% to about 10%, 15%, or 25% by weight.

[0052] Other examples of additional plasticizers include dipropylene glycol dibenzoate and 1,2-propylene glycol dibenzoate, trioctyl citrate, triethyl citrate, acetyl tributyl citrate or tributyl citrate. These other additional plasticizers may be present at concentrations ranging from about 1%, 2% or 3% to about 10%, 15% or 25% by weight.

[0053] As another example, in accordance with certain embodiments, additional polymers or resins may be included in the nail topcoat composition. Acrylate copolymers are an example of a suitable additional polymer or resin. An example of a suitable acrylate copolymer is "acrylate copolymer," having an acid number that ranges from about 145 to about 170 mg of KOH per gram such as EPOMATT G-152, EPOMATT G-154, or ISOCRYL G-265 available from Estron Chemical, Inc. of Calvert City, KY. Other potential acrylate copolymers include those sold under the name PECOREZ® such as, for example, PECOREZ AC 50 available from Phoenix Chemical.

[0054] Another example of a suitable polymer or resin is a polyester resin formed by reacting a polyhydric alcohol with a basic polyacid, for example, phthalic acid, such as the commercial product sold by Unitex Chemical Corporation under the name UNIPLEX 670-P, which is a polyester resin obtained by reacting trimellitic acid, neopentyl glycol and adipic acid. The (meth)acrylic resins, according to the disclosure, may include copolymers of methyl methacrylate with butyl acrylate, butyl methacrylate, isobutyl methacrylate or isobornyl methacrylate, for example, the products com commercial products PARALOID DM-55, PARALOID B48N, PARALOID B66 and ELVACITE 2550; copolymers of isobutyl methacrylate and butyl methacrylate, for example, the commercial product ELVACITE 2046; and polymers of isobutyl methacrylate, for example, PARALOID B67.

[0055] These additional polymers or resins may be present at concentrations ranging from about 1%, 2% or 3% to about 10%, 15% or 25% by weight.

[0056] As another example, according to some embodiments, matting agents may also be included in the nail topcoat composition. Examples include silica, aluminosilicates, borosilicates, and the like. These matting agents may be present at concentrations ranging from about 0.25%, 0.5% or 1% to about 1%, 2% or 5% by weight.

[0057] In some notable embodiments, the nail polish topcoat composition may include certain components such as water and / or colorants (coloring agent). However, in other embodiments, it is generally preferred that the nail topcoat composition be substantially free of water and / or colorants.

[0058] The nail topcoat composition may be substantially free of dyes, pigments, pearls, effect pigments and the like that are commonly used in color cosmetics or color coat nail polishes.

[0059] Dyes include, for example, fat-soluble dyes such as Sudan Red, DC Red 17, DC Green 6, [3-carotene, Sudan Brown, DC Yellow 11, DC Violet 2, DC Orange 5 and Quinoline Yellow.

[0060] 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 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.

[0061] Pearlescent pigments include, for example, 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.

[0062] Nail topcoat compositions of the present invention may be made by methods known in the art, such as by optionally premixing certain ingredients in the one or more solvents and mixing various ingredients together thoroughly to provide a homogeneous mixture. METHODS OF USE

[0063] The nail topcoat compositions may be applied to a nail such as a fingernail or toenail. In some embodiments, the nail has a previously applied colored layer formed thereon and the nail topcoat composition is applied over the previously applied colored layer formed on the nail. The nail topcoat composition may be applied to the nail / previously applied colored layer formed thereon by commonly used methods such as brushing or spraying.

[0064] The following examples are intended to illustrate the invention without limiting its scope. The percentages are given on an active weight basis. EXAMPLES: COMPOSITION AND ESSAYS Example 1: Comparative Examples

[0065] The compositions below in Table 1 (Comparative Examples) were prepared to evaluate the gloss retention of the topcoat compositions after exposure to various abrasion test conditions, specifically dry abrasion, wet abrasion and soap abrasion. These comparative compositions contained varying amounts of alkyd resin. Specifically, three compositions were prepared having different concentrations of alkyd resin, furthermore the fourth composition was prepared with an organic silicone hybrid polymer without alkyd resin. Example 2: Inventive Examples

[0066] The compositions below in Table 2 (Inventive Examples) were prepared to evaluate the gloss retention of topcoat compositions after exposure to various abrasion test conditions, specifically dry abrasion, wet abrasion, and soap abrasion. These compositions contained varying amounts of alkyd resin with an organic silicone hybrid polymer. Specifically, two compositions were prepared having different concentrations of alkyd resin with an organic silicone hybrid polymer. SAMPLE PREPARATION

[0067] Samples were prepared by combining solvents, nitrocellulose, an organic silicone hybrid polymer, an alkyd resin, other plasticizers, other film-forming polymers, and other ingredients in a jar. The mixture was

[0068]

[0069]

[0070] allowed to stand for 12 to 24 hours. It was then mixed for three minutes with the mixer-agitator until uniform. The samples were then allowed to stand for 24 hours before testing to allow air bubbles to dissipate. The test nail topcoat compositions were evaluated for gloss retention by measuring gloss (shine) at 20° and 60° after exposure to various abrasion test conditions, including dry abrasion, wet abrasion, and soap abrasion. DESCRIPTION OF THE TEST To measure gloss retention, a film is pulled using a 6 mil pinch bar onto the BYKO-chart P121-10N black rubbing panel and allowed to dry for 24 hours under ambient conditions. The black rubbing panel was placed in a BYK Gardner rubbing machine, base model. A BYK Gardner 8812 abrasive brush and a 500 g BYK weight were used to perform an abrasion test under various conditions, specifically dry abrasion, wet abrasion, and soap abrasion. After 100 cycles, wipe the surface of the rubbing panel with a dry cloth and measure the gloss (gloss) using the BYK-Gardner Micro-Tri-Glossometer. Repeat the same procedure for up to 500 cycles. [Table 1] PAINTING Components Comparative Examples - Table 1 Inventive Examples - Table 2 El.l E1.2 E1.3 E1.4 E2.1 E2.2 Solvents, including acetates 72.3 78.5 77.1 77.1 72.3 78.5 Nitrocellulose 9.5 9.6 11.2 11.2 9.5 9.6 Crotonic acid / vinyl C8-12 isoalkyl esters / VA / bis-vinyldimethicone crosslinked polymer ** ** ** 0.1 0.1 0.1 Phthalic anhydride / glycerol / glycidyl decanoate copolymer. 9.9 0.7 ** ** 9.9 0.7 Other film-forming polymers 2.0 6.5 5.7 5.7 2.0 6.5 Other plasticizers 6.2 4.8 6.0 6.0 6.2 4.8 *Apparent errors due to rounding Total 100 100 100 100 100 100 Gloss at 60 degrees 0 cycles 87.6 75.9 59.3 77.2 87 80.1 100 cycles 78.1 66 49 77.1 85 78.9 500 cycles 62.6 57.2 37.9 76.6 83.9 71.4 A Gloss (0 cycles - 500 cycles) 25 18.7 21.4 0.6 3.1 8.7 Gloss at 20 degrees 0 cycles 58.8 31.8 18.3 34 57.9 38.1 100 cycles 39.4 23 11.1 33.5 52.3 37.3 500 cycles 21.6 14.4 3.5 32.7 48.7 29 A Brightness (0 cycles - 500 cycles) 37.2 17.4 14.8 1.3 9.2 9.1 RESULT

[0071] The nail topcoat compositions and gloss (shine) results are shown in Tables 1 and 2 above.

[0072] According to the results of Table 1 and Table 2, the composition with a silicone organic hybrid polymer improved gloss retention and the compositions with both a silicone organic hybrid polymer and an alkyd resin clearly improve initial gloss and gloss retention under dry abrasion conditions. The effect is particularly pronounced at alkyd concentrations above 0.7% by weight, as shown in Example 2.1.

Claims

Claims

1. A composition for use on nails, comprising: a solvent system comprising at least one non-aqueous volatile polar solvent; a water-insoluble nitrocellulose polymer; an organic silicone hybrid polymer formed from at least one monomer comprising carboxylic acid and at least one vinyl monomer; and an alkyd resin.

2. The composition of claim 1, wherein the organic silicone hybrid polymer is a copolymer of vinyl acetate, vinyl silicone, C3-7 carboxylic acid and C7-45 vinyl alkyl ester.

3. A composition according to any preceding claim, wherein the organic silicone hybrid polymer is a crosslinked polymer of crotonic acid / vinyl C8-12 isoalkyl esters / VA / bis-vinyldimethicone.

4. A composition according to any preceding claim, wherein the organic silicone hybrid polymer is free of phenyl moieties.

5. A composition according to any preceding claim, wherein the alkyd resin is a phthalic anhydride / glycerol / glycidyl decanoate copolymer.

6. A composition according to any preceding claim, wherein the organic silicone hybrid polymer is present at a concentration by weight in the composition which is from about 0.05% to about 2.5% by weight.

7. A composition according to any preceding claim, wherein the alkyd resin is present at a concentration by weight in the composition which is from about 8% to about 13%.

8. A composition according to any preceding claim, wherein the composition is substantially free of colorant and is free of UV curable material.

9. A method of treating a nail, comprising: applying to the nail a composition comprising: a solvent system comprising at least one non-aqueous volatile polar solvent; a water-insoluble nitrocellulose polymer; an organic silicone hybrid polymer formed from at least one monomer comprising carboxylic acid and at least one vinyl monomer; and an alkyd resin.

10. The method of claim 9, wherein the alkyd resin is present at a concentration by weight in the composition that is from about 8% to about 13%.

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