Personal care composition comprising volatile alkane mixture and cross-linked elastomer

Abstract

The present disclosure relates to a personal care composition comprising: (a) a volatile alkane mixture comprising from about 10% to about 90% by weight of a linear alkane having from 9 to 18 carbon atoms and from about 10% to about 90% by weight of a branched alkane having from 10 to 14 carbon atoms, relative to the total weight of the alkane mixture; and (b) one or more crosslinked elastomers.

Description

Technical Field

[0001] The present disclosure relates to personal care compositions comprising: (a) a volatile alkane mixture comprising, relative to the total weight of the alkane mixture, from about 10% to about 90% by weight of linear alkanes having 9 to 18 carbon atoms and from about 10% to about 90% by weight of branched alkanes having 10 to 14 carbon atoms; and (b) one or more crosslinked elastomers. The present disclosure also relates to linear alkanes comprising, relative to the total weight of the alkane mixture, from about 0% to about 5% by weight of n-decane, from about 50% to about 80% by weight of n-dodecane, from about 1% to about 5% by weight of n-tetradecane, and from about 0% to about 5% by weight of n-hexadecane or n-octadecane. The present disclosure further relates to a crosslinked elastomer selected from the group consisting of a crosslinked silicone elastomer, a crosslinked polyurethane elastomer, a crosslinked polyester elastomer, and combinations thereof. Background Art

[0002] Swelling cross-linked polymers are used in personal care formulations to provide cushioning and a powdery afterfeel without a heavy or greasy feel. The afterfeel of a swelled cross-linked elastomer generally depends on the nature of the solvent used to swell and / or disperse the cross-linked elastomer. Non-volatile solvents provide a moist, smooth afterfeel, while volatile oils provide a dry, powdery afterfeel. Currently used volatile oils include silicone-based solvents such as cyclopentasiloxane and methyl trimethicone, and hydrocarbon solvents such as isododecane and isohexadecane. Silicone-based solvents present challenges due to their non-biodegradability. Hydrocarbon volatile solvents such as isododecane (IDD) evaporate from the skin too quickly, leaving it dry and uncomfortable. Other ester-based organic solvents or other hydrocarbon solvents, such as isohexadecane, are non-volatile and do not meet the requirements for providing a dry, powdery, and non-sticky afterfeel. When the present disclosure is combined with a cross-linked elastomer powder, the personal care composition provides a dry, powdery afterfeel without being overly dry and greasy. Summary of the Invention

[0003] The present disclosure relates to personal care compositions comprising: (a) a volatile alkane mixture comprising from about 10 wt. % to about 90 wt. % of linear alkanes having 9 to 18 carbon atoms and from about 10 wt. % to about 90 wt. % of branched alkanes having 10 to 14 carbon atoms, relative to the total weight of the alkane mixture; and (b) one or more crosslinked elastomers.

[0004] In some aspects, the linear alkanes comprise from about 0 wt % to about 5 wt % n-decane, from about 50 wt % to about 80 wt % n-dodecane, from about 1 wt % to about 5 wt % n-tetradecane, and from about 0 wt % to about 5 wt % n-hexadecane or n-octadecane, relative to the total weight of the alkane mixture.

[0005] In some aspects, the cross-linked elastomer is a swellable cross-linked elastomer, a non-swellable cross-linked elastomer, or a combination thereof.

[0006] In some aspects, the cross-linked elastomer has a particle size of about 1 micron to about 500 microns.

[0007] In some aspects, the swellable cross-linked elastomer is swollen by a solvent to form a swollen cross-linked elastomer.

[0008] In some aspects, the solvent is about 10 wt % or more relative to the weight of the swollen cross-linked elastomer.

[0009] In some aspects, the solvent is a volatile alkane mixture, a silicone solvent, a hydrocarbon solvent, an organic solvent, a fluorinated solvent, or a combination thereof.

[0010] In some aspects, the solvent comprises from about 0 wt % to about 100 wt % of the volatile alkane mixture, relative to the total weight of the solvent.

[0011] In some aspects, the swollen cross-linked elastomer is a gel.

[0012] In some aspects, the swollen cross-linked elastomer has a viscosity of about 10,000 cP to about 2,000,000 cP at 25°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings incorporated herein form part of the specification and illustrate embodiments of the present disclosure. Together with the specification, the drawings further serve to explain the principles of the disclosed embodiments and enable those skilled in the relevant art to make and use the disclosed embodiments. The drawings are intended to be illustrative and not restrictive.

[0014] Figure 1 The volatility of Formulation Examples 1a and 1b is described. DETAILED DESCRIPTION

[0015] As used above, and throughout the specification, unless otherwise indicated, the following terms shall be understood to have the following meanings.

[0016] Unless otherwise indicated herein, the terms "a," "an," "the," and similar references used in the context of describing particular aspects of the present application (especially in the context of the claims) are to be construed to cover both the singular and the plural, unless otherwise indicated. Recitation of ranges of values ​​herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each separate value is incorporated into the specification as if it were individually recited herein.

[0017] Furthermore, when used herein, “and / or” should be taken as a specific disclosure of each of the two specified features or components (components) with or without the other. Thus, as used herein in phrases such as “A and / or B”, the term “and / or” is intended to include “A and B”, “A or B”, “(alone) A”, and “(alone) B”. Similarly, as used in phrases such as “A, B, and / or C”, the term “and / or” is intended to cover each of the following: A, B, and C; A, B, or C; A or C; A or B; B or C; A and C; A and B; B and C; (alone) A; (alone) B; and (alone) C.

[0018] It is understood that, herein, whenever aspects are described using the language "comprising," other similar aspects are also provided that are described using the language "consisting of" and / or "consisting essentially of."

[0019] The term "about" encompasses the range of experimental error that occurs in any measurement.

[0020] As used herein, the term "hydrocarbon" refers to any chemical structure containing hydrogen atoms and carbon atoms.

[0021] The term "alkyl" means any monovalent, saturated straight or branched chain hydrocarbon group; and the term "alkane" means an organic compound composed entirely of single-bonded carbon and hydrogen atoms.

[0022] Representative examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, and isobutyl.Examples of alkanes include, but are not limited to, methane, ethane, propane, and isobutane.

[0023] The term "aryl" includes any aromatic hydrocarbon from which one hydrogen atom has been removed. Specific non-limiting examples of aryl groups include phenyl and naphthyl.

[0024] The term "Linear C9-C 18 "Alkanes" means linear alkanes having 9 to 18 carbon atoms. Linear C9-C 18 Examples of alkanes include, but are not limited to, n-decane, n-dodecane, and n-tetradecane.

[0025] The term "branched C10 -C 14 "Alkanes" means branched alkanes having 10 to 14 carbon atoms. Branched C 10 -C 14 Examples of alkanes include, but are not limited to, isodecane and isododecane.

[0026] Other than in the working examples, or where otherwise indicated, all numbers expressing amounts of material, reaction conditions, durations, quantitative properties of materials, and so forth, set forth in the specification and claims are to be understood as being modified in all instances by the term "about."

[0027] It will be understood that any numerical range recited herein includes all sub-ranges of that range and any combination of the various endpoints of such ranges or sub-ranges.

[0028] It will be further understood that any compound, material or substance disclosed explicitly or implicitly in the specification and / or recited in the claims as belonging to a group of structurally, compositionally and / or functionally related compounds, materials or substances includes individual representatives of the group and all combinations thereof.

[0029] 1. Volatile alkane mixture

[0030] The present disclosure relates to personal care compositions comprising: (a) a volatile alkane mixture comprising from about 10 wt. % to about 90 wt. % of linear alkanes having 9 to 18 carbon atoms and from about 10 wt. % to about 90 wt. % of branched alkanes having 10 to 14 carbon atoms, relative to the total weight of the alkane mixture; and (b) one or more crosslinked elastomers.

[0031] In some aspects, the volatile alkane mixture comprises from about 10 wt % to about 90 wt % linear C9-C 18 Alkanes, about 15% to about 90% by weight of linear C9-C 18 Alkanes, about 20% to about 90% by weight of linear C9-C 18 Alkanes, about 25% to about 85% by weight of linear C9-C 18 Alkanes, about 30% to about 85% by weight of linear C9-C 18 Alkanes, about 35% to about 80% by weight of linear C9-C 18 Alkanes, about 40% to about 80% by weight of linear C9-C 18 Alkanes, about 45% to about 75% by weight of linear C9-C 18 Alkanes, about 50% to about 75% by weight of linear C9-C 18 Alkanes, about 55% to about 70% by weight of linear C9-C18 Alkanes, or about 60% to about 70% by weight of linear C9-C 18 Alkanes.

[0032] In some aspects, the volatile alkane mixture comprises from about 30 wt % to about 85 wt % linear C9-C 18 Alkanes.

[0033] In some aspects, the volatile alkane mixture comprises from about 50 wt % to about 75 wt % linear C9-C 18 Alkanes.

[0034] In some aspects, the linear alkanes comprise from about 0 wt % to about 5 wt % n-decane, from about 50 wt % to about 80 wt % n-dodecane, from about 1 wt % to about 5 wt % n-tetradecane, and from about 0 wt % to about 5 wt % n-hexadecane or n-octadecane, relative to the total weight of the alkane mixture.

[0035] In some aspects, the linear alkanes comprise from about 0% to about 5% by weight of n-decane, from about 1% to about 4% by weight of n-decane, or from about 2% to about 3% by weight of n-decane, relative to the total weight of the alkane mixture. In some aspects, n-decane is present at about 0%, about 1%, about 2%, about 3%, about 4%, or about 5% by weight, relative to the total weight of the alkane mixture. In some aspects, n-decane is present at about 1% by weight, relative to the total weight of the alkane mixture. In some aspects, n-decane is present at about 5% by weight, relative to the total weight of the alkane mixture.

[0036] In some aspects, relative to the gross weight of the alkane mixture, the linear alkane comprises n-dodecane of about 50 % by weight to about 80 % by weight, n-dodecane of about 55 % by weight to about 75 % by weight, n-dodecane of about 60 % by weight to about 70 % by weight, or n-dodecane of about 65 % by weight to about 70 % by weight, relative to the gross weight of the alkane mixture. In some aspects, relative to the gross weight of the alkane mixture, n-dodecane is about 50 % by weight, about 55 % by weight, about 60 % by weight, about 65 % by weight, about 70 % by weight, about 75 % by weight, or about 80 % by weight. In some aspects, relative to the gross weight of the alkane mixture, n-dodecane is about 60 % by weight. In some aspects, relative to the gross weight of the alkane mixture, n-dodecane is about 65 % by weight. In some aspects, relative to the gross weight of the alkane mixture, n-dodecane is about 70 % by weight.

[0037] In some aspects, relative to the gross weight of the alkane mixture, the linear alkanes comprise n-tetradecane of about 1 wt % to about 5 wt %, n-tetradecane of about 2 wt % to about 4 wt % or n-tetradecane of about 3 wt % to about 4 wt % with respect to the gross weight of the alkane mixture. In some aspects, relative to the gross weight of the alkane mixture, n-tetradecane is about 1 wt %, about 2 wt %, about 3 wt %, about 4 wt % or about 5 wt %. In some aspects, relative to the gross weight of the alkane mixture, n-tetradecane is about 1 wt %. In some aspects, relative to the gross weight of the alkane mixture, n-tetradecane is about 5 wt %.

[0038] In some aspects, the linear alkanes comprise from about 0% to about 5% by weight of n-hexadecane, from about 1% to about 4% by weight of n-hexadecane, or from about 2% to about 3% by weight of n-hexadecane relative to the gross weight of the alkane mixture. In some aspects, n-hexadecane is about 0%, about 1%, about 2%, about 3%, about 4%, or about 5% by weight relative to the gross weight of the alkane mixture. In some aspects, n-hexadecane is about 0% by weight relative to the gross weight of the alkane mixture.

[0039] In some aspects, the linear alkanes comprise from about 0% to about 5% by weight of n-octadecane, from about 1% to about 4% by weight of n-octadecane, or from about 2% to about 3% by weight of n-octadecane, relative to the gross weight of the alkane mixture. In some aspects, n-octadecane is about 0%, about 1%, about 2%, about 3%, about 4%, or about 5% by weight, relative to the gross weight of the alkane mixture. In some aspects, n-octadecane is about 0% by weight, relative to the gross weight of the alkane mixture.

[0040] In some aspects, the linear alkane is of plant origin. In some aspects, the linear alkane of plant origin is n-decane. In some aspects, the linear alkane of plant origin is n-dodecane. In some aspects, the linear alkane of plant origin is n-tetradecane. In some aspects, the linear alkane of plant origin is n-hexadecane. In some aspects, the linear alkane of plant origin is n-octadecane.

[0041] In some aspects, the linear alkane does not contain an alkane with an odd number of carbon atoms. In some aspects, the linear alkane is n-decane. In some aspects, the linear alkane is n-dodecane. In some aspects, the linear alkane is n-tetradecane. In some aspects, the linear alkane is n-hexadecane. In some aspects, the linear alkane is n-octadecane.

[0042] In some aspects, the volatile alkane mixture comprises from about 10 wt % to about 90 wt % branched C 10 -C14 Alkanes, about 10% to about 85% by weight of branched C 10 -C 14 Alkanes, about 10% to about 80% by weight of branched C 10 -C 14 Alkanes, about 15% to about 75% by weight of branched C 10 -C 14 Alkanes, about 15% to about 70% by weight of branched C 10 -C 14 Alkanes, about 20% to about 65% by weight of branched C 10 -C 14 Alkanes, about 20% to about 60% by weight of branched C 10 -C 14 Alkanes, about 25% to about 55% by weight of branched C 10 -C 14 Alkanes, about 25% to about 50% by weight of branched C 10 -C 14 Alkanes, about 30% to about 45% by weight of branched C 10 -C 14 Alkanes, or about 30% to about 40% by weight of branched C 10 -C 14 Alkanes.

[0043] 2. Cross-linked elastomers

[0044] In some aspects, the personal care composition comprises one or more cross-linked elastomers. In some aspects, the cross-linked elastomer has a particle size of about 1 micron to about 500 microns, about 20 microns to about 400 microns, about 30 microns to about 300 microns, about 50 microns to about 200 microns, or about 70 microns to about 150 microns. In some aspects, the cross-linked elastomer has a particle size of about 1 micron, about 50 microns, about 100 microns, about 150 microns, about 200 microns, about 250 microns, about 300 microns, about 350 microns, about 400 microns, about 450 microns, or about 500 microns.

[0045] In some aspects, the cross-linked elastomer particles are spherical. Examples of spherical cross-linked elastomer particles include, but are not limited to, elastomer particles having the INCI (International Nomenclature of Cosmetic Ingredients) names Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer, Diphenyl Dimethicone / Vinyl Diphenyl Dimethicone / Silsesquioxane Crosspolymer, Polymethylsilsesquioxane, Dimethicone / Vinyl Dimethicone Crosspolymer, Dimethiconol / Silsesquioxane Copolymer, and are available under the trade name Tospearl 2000B from Momentive Performance Materials, under the trade names KSP-100, KSP-300 from Shinetsu Silicones, and under the trade name DOWSIL TM EP-9801 Hydro Cosmetic Powder was obtained from Dow and Serasense SP-13 and Serasense SP-14 were obtained from KCC silicones.

[0046] In some aspects, the particles of the cross-linked elastomer are non-spherical.

[0047] In some aspects, the cross-linked elastomer is a cross-linked silicone elastomer, a cross-linked polyurethane elastomer, a cross-linked polyester elastomer, or a combination thereof.

[0048] In some aspects, the cross-linked elastomer is a cross-linked silicone elastomer. Examples of such elastomers include those having the INCI (International Nomenclature of Cosmetic Ingredients) names Dimethicone / Vinyl Dimethicone Crosspolymer, Dimethiconol / Silsesquioxane Copolymer, Cetearyl Dimethicone Crosspolymer, C30-45 Alkyl Cetearyl Dimethicone Crosspolymer, Polysilicone-11, and sold by Momentive Performance Materials under the trade names SFE839, silsoft silicone gel, Velvesil 125, Velvesil 034, Velvesil DM gel, and by Dow under the trade names DOWSIL TM 9045 Silicone Elastomer Blend is sold by Grant Industries under the trade name Gransil EP-LS.

[0049] In some aspects, the cross-linked elastomer is a cross-linked polyurethane elastomer. Examples of such elastomers are summarized in US20210059924A1.

[0050] In some aspects, the cross-linked elastomer is a cross-linked polyester elastomer or a mixture thereof. Examples of such elastomers include, but are not limited to, a cross-linked polymer of sebacic acid and hydrogenated castor oil, a cross-linked polymer of epoxidized soybean oil and hydrogenated dimer acid, and are summarized in US20220195178A1 and US20220194912A1.

[0051] In some aspects, the cross-linked elastomer is an emulsified cross-linked elastomer. Examples of emulsified cross-linked elastomers include, but are not limited to, those with the INCI names Dimethicone / Polyglyceryl-3 Crosspolymer, Dimethicone / PEG-10 / 15 Crosspolymer, PEG-15 / Lauryl Dimethicone Crosspolymer, PEG-12 Dimethicone / PPG-20 Crosspolymer, and are commercially available from Shinetsu Silicones as KSG 210, KSG 310, KSG 710, and DOWSIL TM EL-7040 Hydro Elastomer Blend is commercially available from Dow.

[0052] In some aspects, the cross-linked elastomer is a swellable cross-linked elastomer, a non-swellable cross-linked elastomer, or a combination thereof. In some aspects, the cross-linked elastomer is a swellable cross-linked elastomer.

[0053] In some aspects, the swellable cross-linked elastomer is swollen with a solvent to form a swollen cross-linked elastomer. In some aspects, the solvent is about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, about 90%, about 95%, about 98%, or about 99% by weight of the swollen cross-linked elastomer.

[0054] In some aspects, the solvent is a volatile alkane mixture of the present invention, a silicone solvent, a hydrocarbon solvent, an organic solvent, a fluorinated solvent, or a combination thereof. In some aspects, the solvent comprises from about 0 wt % to about 100 wt % of the volatile alkane mixture relative to the total weight of the solvent. In some aspects, the solvent comprises from about 5 wt % to about 95 wt % of the volatile alkane mixture, from about 10 wt % to about 90 wt % of the volatile alkane mixture, from about 15 wt % to about 85 wt % of the volatile alkane mixture, from about 20 wt % to about 80 wt % of the volatile alkane mixture, from about 25 wt % to about 75 wt % of the volatile alkane mixture, from about 30 wt % to about 70 wt % of the volatile alkane mixture, from about 35 wt % to about 65 wt % of the volatile alkane mixture, from about 40 wt % to about 60 wt % of the volatile alkane mixture, from about 45 wt % to about 55 wt % of the volatile alkane mixture, or from about 50 wt % to about 55 wt % of the volatile alkane mixture, relative to the total weight of the solvent. In some aspects, the volatile alkane mixture is contained within the swollen cross-linked elastomer.

[0055] In some aspects, the swollen cross-linked elastomer is a gel.

[0056] In some aspects, the swollen cross-linked elastomer has a viscosity (25° C.) of about 10,000 cP to about 2,000,000 cP, about 20,000 cP to about 1,800,000 cP, about 40,000 cP to about 1,500,000 cP, about 50,000 cP to about 1,000,000 cP, or about 100,000 cP to about 500,000 cP.

[0057] 3. Personal Care Composition Ingredients

[0058] In some aspects, the personal care composition further comprises one or more of a particulate, a pigment, and a dye. In some aspects, the particulate, the pigment, and the dye are selected from mica, magnesium carbonate, calcium carbonate, magnesium silicate, magnesium aluminum silicate, silicon dioxide, talc, starch octenyl succinate aluminum, polymethylsilsesquioxane, nylon-12, starch granules including tapioca starch and rice starch, cellulose granules, cellulose acetate granules, synthetic dyes including azo dyes, lakes, carmine, and botanicals, iron oxide, zinc oxide, titanium dioxide, boron nitride, red iron oxide, yellow iron oxide, black iron oxide, organically modified hectorite clay, polystyrene powder, silk powder, crystalline cellulose, titanate mica, iron oxide titanate mica, bismuth oxychloride, pearl, pearl mica, interference pigments, and combinations thereof.

[0059] In some aspects, the personal care composition further comprises one or more organic sunscreen oils selected from the group consisting of avobenzone, octyl salicylate, oxybenzone, homosalate, octocrylene, octyl methoxycinnamate, 2-ethoxyethyl p-methoxycinnamate, ethylhexyl salicylate, ethylhexyl methoxycinnamate, and combinations thereof.

[0060] In some aspects, the personal care composition further comprises a humectant selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, glycerin, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin, and combinations thereof.

[0061] In some aspects, the personal care composition further comprises one or more resins. In some aspects, the resin is selected from silicone resins, hydrocarbon resins, organic resins, fluorinated resins, and combinations thereof.

[0062] In some respects, the resin is a silicone resin comprising the following: monofunctional siloxane units (M units), difunctional siloxane units (D units), trifunctional siloxane units (T units), tetrafunctional siloxane units (Q units), or a combination thereof. In some respects, the resin is a silicone resin comprising the following: monofunctional siloxane units (M units) with alkyl and / or aryl substituents on silicon atoms, difunctional siloxane units (D units) with alkyl and / or aryl substituents on silicon atoms, trifunctional siloxane units (T units) with alkyl and / or aryl substituents on silicon atoms, tetrafunctional siloxane units (Q units) with alkyl and / or aryl substituents on silicon atoms, or a combination thereof. In some respects, the resin is a silicone resin selected from the following: MQ resin, MT resin, T-propyl resin, and a combination thereof.

[0063] In some aspects, the resin is an organic resin comprising a homopolymer or copolymer of a vinyl polymer, an acrylic polymer, a methacrylic polymer, a polyolefin, polyvinylpyrrolidone (PVP), vinylpyrrolidone (VP), or a styrenic polymer, or a combination thereof.

[0064] In some aspects, the resin is an organic resin comprising: polymer glue, cellulose, cellulose derivatives, agar, pectin, gelatin, starch, starch derivatives, chitosan, chitosan derivatives or a combination thereof. In some aspects, the polymer glue is selected from alginate, carrageenan, acacia gum, gum arabic, gum ghatti, gum karaya, gum tragacanth, guar gum, guar hydroxypropyltrimonium chloride, xanthan gum, gellan gum, dammar gum, mastic gum and a combination thereof. In some aspects, the cellulose derivative is selected from sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxymethyl carboxyethyl cellulose, hydroxymethyl carboxypropyl cellulose, ethyl cellulose, sulfated cellulose, hydroxypropyl cellulose, methylcellulose, hydroxypropyl methylcellulose, microcrystalline cellulose and a combination thereof. In some aspects, the chitosan derivative is hydroxyethyl chitosan.

[0065] In some aspects, the resin is a film former.

[0066] In some aspects, the personal care composition further comprises a silicone wax, an organic wax, or a combination thereof. In some aspects, the silicone wax is selected from C 30 -C 45 Alkyl polydimethylsiloxane, C 30 -C 45 Alkyl cetearyl dimethicone crosspolymer, and combinations thereof. In some aspects, the organic wax is selected from beeswax, ozokerite, carnauba wax, shea butter, stearic acid, cetyl alcohol, and combinations thereof.

[0067] In some aspects, the personal care composition further comprises an aqueous phase selected from the group consisting of water, glycerin, butylene glycol, propylene glycol, xanthan gum, steareth 2, steareth 21, sodium polyacrylate, disodium EDTA, hydroxyethyl urea, cationic emulsifiers, anionic emulsifiers, nonionic emulsifiers, sodium chloride, and combinations thereof.

[0068] In some aspects, the personal care composition further comprises one or more non-volatile oils selected from the group consisting of silicone oils, hydrocarbon oils, fluorinated oils, organic oils, and combinations thereof.

[0069] In some aspects, the non-volatile oil is a silicone gum selected from the group consisting of polyalkyl siloxanes, polyaryl siloxanes, polyalkyl silanols, and combinations thereof.

[0070] In some aspects, the non-volatile oil is selected from amino-modified silicones, polyether-modified silicones, phenyl-modified silicones, and combinations thereof.

[0071] In some aspects, the non-volatile oil is a phenyl-modified silicone selected from phenyl trimethicone, triphenyldimethylvinyldisiloxane, phenylpropyldimethylsiloxysilicate, and combinations thereof.

[0072] In some aspects, the non-volatile oil is an organic oil selected from the group consisting of: C8-C 40 Fatty alcohols, C7-C 39 Fatty acid esters, C8-C 40 Esters of fatty alcohols, polyisobutylene, waxes, vegetable oils including coconut oil, almond oil, and avocado oil, mineral oils, synthetic oils, and combinations thereof. In some aspects, the organic oil is C8-C 40 Fatty alcohol, C 10 -C 40 Fatty alcohol, C 15 -C 35 Fatty alcohol, C 20 -C 30 Fatty alcohol, or C 25 -C 30 In some aspects, the organic oil is C7-C 39 Fatty acid esters, C 10 -C 35 Fatty acid esters, C 15 -C 30 Fatty acid esters, or C 20 -C 25 In some aspects, the organic oil is C8-C 40 Fatty alcohol esters, C 10 -C 40 Fatty alcohol esters, C 15 -C 35 Fatty alcohol esters, C 20 -C 35 Fatty alcohol esters, or C 25 -C 30 Esters of fatty alcohols.

[0073] In some aspects, the non-volatile oil is selected from the group consisting of conditioners, emollients, sunscreens, natural oils, and combinations thereof.

[0074] In some aspects, the personal care composition further comprises one or more preservatives. In some aspects, the preservative is phenoxyethanol, ethylhexylglycerin, or a combination thereof.

[0075] In some aspects, the personal care composition further comprises one or more fragrances.

[0076] In some aspects, the personal care composition is a liquid, emulsion, lotion, paste, cream, aerosol spray, solid stick, gel, two-phase liquid, or multi-phase liquid.

[0077] In some aspects, the personal care composition is a deodorant, an antiperspirant, a skin cream, a face cream, a shampoo, a conditioner, a mousse, a hair styling gel, a hair spray, a barrier cream, a lipstick, a lip gloss, a lip gloss, a sunscreen, an after-sun lotion, a sunscreen spray, a primer, a facial foundation, a blush, a makeup, a mascara, a skin lotion, a moisturizer, a facial treatment, an eye serum, an eye cream, a personal cleanser, a facial cleanser, a bath oil, a perfume, a shaving cream, a pre-shave lotion, an after-shave lotion, a cologne, a sachet, a loose powder, a pressed powder, an eye shadow, or a sunscreen.

[0078] Example 1

[0079] Preparation of Alkane Mixture Examples 1-3 and Comparative Examples 1-2

[0080] The linear alkane mixture of the present invention is prepared as described in EP2417199A1. 10 -C 12 The alkanes were combined and stirred until a homogeneous solution was formed. Table 1 lists the ingredients of the alkane mixtures of Examples 1-3 and Comparative Examples 1-2.

[0081] Table 1

[0082]

[0083] Example 2

[0084] Preparation of Personal Care Formulation 1

[0085] Table 2 lists the ingredients of Personal Care Formulation 1 (gel). The procedure for preparing Personal Care Formulation 1 is described below. Alkane Mixture Example 3 and Dimethiconol / Silsesquioxane Copolymer were combined and stirred at 3000 rpm until a homogeneous solution was formed. Comparative Example 1 and Dimethiconol / Silsesquioxane Copolymer were combined and stirred at 3000 rpm until a homogeneous solution was formed. Comparative Example 2 and Dimethiconol / Silsesquioxane Copolymer were combined and stirred at 3000 rpm until a homogeneous solution was formed.

[0086] Table 3 lists the wettability, processability, and tack attributes of Formulation Examples 1a-1c. Formulation Example 1a, which contains Alkane Mixture Example 3, exhibits better wettability, shorter processing time, and reduced tack compared to the baseline Formulation Examples 1b and 1c.

[0087] Figure 1 The volatility of Formulation Examples 1a and 1b is described. Figure 1In the example 1, Formulation Example 1b exhibits higher volatility compared to Formulation Example 1a. The lower volatility of Formulation 1a results in a higher rub time, which provides a higher cushioning, but drier feel compared to Formulation 1b. Formulation Example 1a exhibits lower tack compared to Formulation Examples 1b and 1c, and therefore exhibits a light, non-sticky feel.

[0088] Table 2

[0089]

[0090] Table 3

[0091]

[0092] The viscosity was measured by means of a rheometer MCR 301 (Anton Paar, Austria), probe PP25, v = 0.5 mm / sec.

[0093] Example 3

[0094] Preparation of Personal Care Formulation 2

[0095] Table 4 lists the ingredients of Personal Care Formulation 2 (Anti-Aging Facial Serum). The procedure for preparing Personal Care Formulation 2 is described below. The Phase A ingredients were combined and stirred at room temperature until a homogeneous solution was formed. Formulation Example 2a, containing Alkane Mixture Example 1, exhibited better wettability, shorter processing time, and enhanced sensory characteristics including a non-greasy and non-sticky feel compared to the benchmark Formulations Examples 2b and 2c.

[0096] Table 4

[0097]

[0098] Example 4

[0099] Preparation of Personal Care Formulation 3

[0100] Table 5 lists the ingredients of Personal Care Formulation 3 (mineral sunscreen). The procedure for preparing Personal Care Formulation 3 is described below. Combine Phase A ingredients and homogenize at 10,000 rpm for 1 minute until uniform. In a separate container, combine Phase B ingredients. Slowly add Phase B to Phase A and mix to emulsify. Homogenize at 5,000 rpm for 5 minutes.

[0101] Table 5

[0102]

[0103] Example 5

[0104] Preparation of Personal Care Formulation 4

[0105] Table 6 lists the ingredients of Personal Care Formulation 4 (mineral sunscreen). The procedure for preparing Personal Care Formulation 4 is described below. Combine Phase A ingredients and homogenize at 10,000 rpm for 1 minute until uniform. In a separate container, combine Phase B ingredients. Slowly add Phase B to Phase A and mix to emulsify. Homogenize at 5,000 rpm for 5 minutes.

[0106] Table 6

[0107]

[0108] Example 6

[0109] Preparation of Personal Care Formulation 5

[0110] Table 7 lists the ingredients of Personal Care Formulation 5 (body lotion). The procedure for preparing Personal Care Formulation 5 is described below. Phase (A) ingredients were combined and homogenized at 2000 rpm for 5 minutes (cowles mixer). Additional Phase B was added to the previous phase and homogenized.

[0111] Table 7

[0112]

Claims

1. A personal care composition comprising: (a) a volatile alkane mixture comprising, relative to the total weight of the alkane mixture, from about 10% to about 90% by weight of linear alkanes having 9 to 18 carbon atoms and from about 10% to about 90% by weight of branched alkanes having 10 to 14 carbon atoms; and (b) one or more crosslinked elastomers.

2. The personal care composition of claim 1, wherein the volatile alkane mixture comprises from about 30% to about 85% by weight of linear alkanes having 9 to 18 carbon atoms, relative to the total weight of the alkane mixture.

3. The personal care composition of claim 1, wherein the volatile alkane mixture comprises from about 50 wt% to about 75 wt% of linear alkanes having 9 to 18 carbon atoms, relative to the total weight of the alkane mixture.

4. The personal care composition of any one of claims 1 to 3, wherein the linear alkanes comprise from about 0 wt% to about 5 wt% of n-decane, from about 50 wt% to about 80 wt% of n-dodecane, from about 1 wt% to about 5 wt% of n-tetradecane, and from about 0 wt% to about 5 wt% of n-hexadecane or n-octadecane, relative to the total weight of the alkane mixture.

5. The personal care composition according to any one of claims 1 to 4, wherein the linear alkane is of plant origin.

6. The personal care composition of any one of claims 1 to 5, wherein the linear alkanes do not contain alkanes having an odd number of carbon atoms.

7. The personal care composition of any one of claims 1 to 6, wherein the cross-linked elastomer has a particle size of from about 1 micron to about 500 microns.

8. The personal care composition of any one of claims 1 to 7, wherein the cross-linked elastomer is a cross-linked silicone elastomer, a cross-linked polyurethane elastomer, a cross-linked polyester elastomer, or a combination thereof.

9. The personal care composition according to any one of claims 1 to 8, wherein the cross-linked elastomer is an emulsified cross-linked elastomer.

10. The personal care composition of any one of claims 1 to 9, wherein the cross-linked elastomer is a swellable cross-linked elastomer, a non-swellable cross-linked elastomer, or a combination thereof.

11. The personal care composition of claim 10, wherein the swellable cross-linked elastomer is swollen by a solvent to form a swollen cross-linked elastomer.

12. The personal care composition of claim 11, wherein the solvent is about 10 wt% or more relative to the weight of the swollen cross-linked elastomer.

13. The personal care composition of claim 11 or 12, wherein the solvent is a volatile alkane mixture, a silicone solvent, a hydrocarbon solvent, an organic solvent, a fluorinated solvent, or a combination thereof.

14. The personal care composition of any one of claims 11 to 13, wherein the solvent comprises from about 0 wt% to about 100 wt% of the volatile alkane mixture, based on the total weight of the solvent.

15. The personal care composition of any one of claims 11 to 14, wherein the swollen cross-linked elastomer has a viscosity of from about 10,000 cP to about 2,000,000 cP at 25°C.

16. A personal care composition according to any one of claims 11 to 15, wherein the swollen cross-linked elastomer is a gel.

17. The personal care composition according to any one of claims 1 to 16, wherein the personal care composition further comprises one or more of a particulate material, a pigment, and a dye.

18. The personal care composition of claim 17, wherein the particulates and pigments are selected from the group consisting of mica, magnesium carbonate, calcium carbonate, magnesium silicate, magnesium aluminum silicate, silica, talc, aluminum starch octenylsuccinate, polymethylsilsesquioxane, nylon-12, starch particles including tapioca starch and rice starch, cellulose particles, cellulose acetate particles, titanium dioxide, zinc oxide, boron nitride, red iron oxide, yellow iron oxide, black iron oxide, organomodified hectorite clay, polystyrene powder, silk powder, crystalline cellulose, titanate mica, iron oxide titanate mica, bismuth oxychloride, pearl, pearl mica, interference pigments, and combinations thereof.

19. The personal care composition according to any one of claims 1 to 18, wherein the personal care composition further comprises one or more organic sunscreen oils selected from the group consisting of avobenzone, octyl salicylate, oxybenzone, homosalate, octocrylene, octyl methoxycinnamate, 2-ethoxyethyl p-methoxycinnamate, ethylhexyl salicylate, ethylhexyl methoxycinnamate, and combinations thereof.

20. The personal care composition of any one of claims 1 to 19, wherein the personal care composition further comprises a humectant selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, glycerin, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin, and combinations thereof.

21. The personal care composition according to any one of claims 1 to 20, wherein the personal care composition further comprises one or more resins.

22. The personal care composition of claim 21, wherein the one or more resins are silicone resins selected from the group consisting of MQ resins, MT resins, T-propyl resins, and combinations thereof.

23. The personal care composition of any one of claims 1 to 22, wherein the personal care composition is a liquid, emulsion, lotion, paste, cream, aerosol spray, solid stick, gel, two-phase liquid, or multi-phase liquid.

24. The personal care composition according to any one of claims 1 to 23, wherein the personal care composition is a deodorant, an antiperspirant, a skin cream, a face cream, a shampoo, a conditioner, a mousse, a hair styling gel, a hair spray, a barrier cream, a lipstick, a lip gloss, a lip gloss, a sunscreen, an after-sun lotion, a sunscreen spray, a primer, a facial foundation, a blusher, a makeup, a mascara, a skin lotion, a moisturizer, a facial treatment, an eye serum, an eye cream, a personal cleanser, a facial cleanser, a bath oil, a perfume, a shaving cream, a pre-shave lotion, an after-shave lotion, a cologne, a sachet, a loose powder, a pressed powder, an eye shadow, or a sunscreen.

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