Mineral sunscreen composition COMPRISING A HYDROPHOBIC POLYMER

Abstract

Mineral sunscreen compositions comprising a hydrophobic polymer are described, comprising (a) a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer; (b) one or more solvents capable of solubilizing the hydrophobic polymer; (c) one or more mineral UV filtering agents; (d) one or more surfactants; and (e) water; the composition being an oil-in-water emulsion. Processes for the preparation and use of the mineral sunscreen compositions are also described. Figure for abstract: none

Description

Title of the invention: Mineral sunscreen composition comprising a hydrophobic polymer SCOPE OF DISCLOSURE

[0001] This disclosure relates to mineral sunscreen compositions comprising a unique hydrophobic polymer, and methods of using mineral sunscreen compositions to protect skin and hair against ultraviolet light. CONTEXT

[0002] The negative effects of exposure to ultraviolet (“UV”) radiation are well known. Prolonged exposure to sunlight causes damage, such as sunburn, to the skin and dries out the hair, making it brittle. When the skin is exposed to UV radiation with a wavelength of approximately 290 nm to approximately 400 nm, long-term damage can lead to serious conditions such as skin cancer.

[0003] UV radiation also contributes to aging by causing the formation of free radicals in the skin. Free radicals include, for example, singlet oxygen, hydroxyl radicals, superoxide anions, nitric oxide, and hydrogen radicals. Free radicals attack DNA, membrane lipids, and proteins, generating carbon radicals. These, in turn, react with oxygen to produce a peroxyl radical, which can attack adjacent fatty acids to generate new carbon radicals. This cascade leads to a chain reaction producing lipid peroxidation products. Damage to the cell membrane results in a loss of cell permeability, an increase in intercellular ion concentration, and a decreased ability to excrete or detoxify waste. The end result is a loss of skin elasticity and the appearance of wrinkles.This process is commonly called photoaging.

[0004] Sunscreens can be used to provide protection against UV damage and delay the signs of aging. The degree of UV protection provided by a sunscreen composition is directly related to the quantity and type of UV filters it contains. The higher the quantity of UV filters, the higher the degree of UV protection. Mineral UV filters often produce a white cast when applied to the skin, especially when used in large quantities in sunscreen formulations, which many consumers dislike. Furthermore, consumers seek a water-resistant sunscreen composition to To avoid the need for frequent reapplication of sunscreen, especially for those who enjoy water, the inventors in this disclosure propose sunscreen compositions that improve the transparency of mineral sunscreens, are water-resistant, and provide exceptional protection against harmful UV rays. Summary of the invention

[0005] This disclosure relates to sunscreen compositions that are highly effective, water-resistant, and aesthetically pleasing. The sunscreen compositions include mineral UV filtering agents, known to be non-irritating, natural, and gentle on the skin. One drawback of mineral-based sunscreen compositions, however, is their tendency to leave a white cast on the skin. Consumers prefer sunscreen compositions to have a natural (imperceptible) appearance. However, developing mineral-based sunscreen products with a high sun protection factor (SPF) that exhibit minimal whitening is challenging.The inventors discovered that using a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer not only improves the transparency of the mineral-based sunscreen composition but also increases water resistance and durability. The resulting sunscreen compositions are long-lasting, wash-resistant, and minimize bleaching. Generally, mineral sunscreen compositions are oil-in-water emulsions and include: a. a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer; b. one or more solvents capable of solubilizing the reaction product of (a); c. one or more mineral UV filtration agents; d. one or more surfactants; and e. of water.

[0006] The hydrophobic polymer may be the reaction product of a natural or food-grade oil and an acrylate or methacrylate polymer. Preferably, the hydrophobic polymer is a reaction product of a natural or food-grade oil and a methacrylate polymer. The natural or food-grade oil may be a drying or semi-drying oil. Non-limiting examples include linseed oil, sunflower oil, tung oil, fish oil, cottonseed oil, soybean oil, or combinations thereof. The polymer of Methacrylate can be formed from methacrylate monomers, for example, monomers selected from isobutyl methacrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, and combinations thereof. In a preferred embodiment, the hydrophobic polymer is formed from a natural or food-grade oil and an isobutyl methacrylate polymer, and may preferably be an isobutyl methacrylate polymer.

[0007] In various embodiments, the hydrophobic polymer is the reaction product of approximately 50 to approximately 85 parts by weight of natural or food-grade oil and approximately 15 to approximately 50 parts by weight of methacrylate or acrylate polymer. More specifically, the hydrophobic polymer may be the reaction product of approximately 72 to approximately 77 parts by weight of natural or food-grade oil and approximately 23 to approximately 28 parts by weight of a methacrylate polymer. For example, the hydrophobic polymer may be the reaction product of linseed oil and poly(isobutyl methacrylate) in a suitable solvent such as, for example, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate.Preferably, the reaction product is formed from about 72 to about 77% of linseed oil and about 23 to about 28% of an isobutyl methacrylate polymer in a suitable solvent, such as 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate.

[0008] One or more solvents capable of solubilizing the hydrophobic polymer of (a) are used to solubilize the hydrophobic polymer. A single solvent or a combination of solvents may be used, the combination of solvents being capable of solubilizing the hydrophobic polymer of (a). In various embodiments, the one or more solvents capable of solubilizing the reaction product of (a) have a hydrogen bonding component (D), a polar component (P), and a dispersion component (H), and a distance (Ra) from the Hansen solubility parameter less than or equal to 13.4 MPa₀₅, the Hansen solubility parameter being defined by formula (I): Sa = / 4(2> -¾.)2 * (P - PJ2 + (if - if j2

[0009] in which • Dr is 16.8 MPa0'5, • Pr is 4.8 MPa0'5 and • Hr is 13.0 MPa0'5.

[0010] Non-limiting examples of solvents capable of solubilizing the hydrophobic polymer of (a) include polycitronellol acetate, caprylic / capric triglyceride, isododecane, isohexadecane, tetradecane, isopropyl myristate, isopropyl alcohol, octyldodecanol, ethanol, phenoxyethanol, castor oil and their mixtures. Polycitronellol acetate and caprylic / capric triglyceride are particularly useful.

[0011] Non-limiting examples of mineral UV filtering agents include treated or untreated metal oxides such as, for example, titanium dioxide pigments or nanopigments (amorphous or crystallized as rutile and / or anatase), iron oxide, zinc oxide, zirconium oxide, or cerium oxide. Particularly preferred mineral UV filtering agents include titanium dioxide and / or zinc oxide.

[0012] Surfactants include anionic surfactants, cationic surfactants, amphoteric (zwitterionic) surfactants, and nonionic surfactants. In various embodiments, the compositions of this disclosure include one or more anionic surfactants and, optionally, one or more nonionic surfactants. In addition, one or more of the surfactants may be a biosurfactant.Non-limiting examples of biosurfactants include glycolipids (e.g., sophorolipids, rhamnolipids, cellobiose lipids, mannosylerythritol lipids, and trehalose lipids), lipopeptides (e.g., surfactin, iturine, fengycin, arthrofactin, and lichenysin), flavolipids, phospholipids (e.g., cardiolipins), fatty acid ester compounds, fatty acid ether compounds, and high molecular weight polymers such as lipoproteins, lipopolysaccharide-protein complexes, and polysaccharide-protein-fatty acid complexes. Preferably, at least one of the biosurfactants is a glycolipid. Non-limiting examples of glycolipids include sophorolipids, rhamnolipids, trehalose lipids, mannosylerythritol lipids, and combinations thereof. Rhamnolipids are particularly preferred.

[0013] Non-limiting examples of anionic surfactants include glutamates, acyltaurates, alkanoyl isethionates, alkyl succinates, alkyl sulfosuccinates, N-alkyl sarcosinates, alkyl phosphates, alkyl etherphosphates, alkyl ethercarboxylates, alpha-olefin sulfonates, or combinations thereof. In various embodiments, the compositions of this disclosure include one or more acyltaurate-type surfactants.

[0014] According to one embodiment, the mineral sunscreen composition according to the invention comprises:

[0015] (a) approximately 0.5 to approximately 10% by weight of a hydrophobic polymer resulting from a reaction product of a natural or food-grade oil selected from linseed oil, sunflower oil, tung oil, fish oil, cottonseed oil, soybean oil and their combinations and a polymer formed from one or more monomers selected from isobutyl methacrylate, methyl methacrylate, ethyl methacrylate and n-butyl methacrylate and their combinations;

[0016] (b) approximately 0.1 to approximately 10% by weight of one or more solvents capable of solubilize the reaction product of (a);

[0017] (c) one or more mineral UV filtration agents;

[0018] (d) approximately 1 to approximately 10% by weight of a plurality of surfactants, wherein the A plurality of surfactants include:

[0019] (d)(i) approximately 0.1 to approximately 8% by weight of one or more rhamnolipids; and

[0020] (d)(ii) approximately 0.1 to approximately 8% by weight of one or more surfactants additional surfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants and cationic surfactants, or mixtures thereof; and

[0021] (e) water;

[0022] wherein the composition is an oil-in-water emulsion having a droplet size of approximately 10 nm to approximately 2 pm, and

[0023] All percentages by weight are based on a total weight of the composition.

[0024] The present invention also relates to a sunscreen composition according to the invention for use on the skin or hair to protect the skin and hair against UV rays.

[0025] In addition to the mineral sunscreen compositions described herein, this disclosure relates to methods of protecting skin and hair against ultraviolet (UV) radiation and methods of absorbing ultraviolet light using mineral sunscreen compositions. These methods include applying a sunscreen composition to the skin or hair. Furthermore, methods for improving the transparency of mineral sunscreen compositions and for imparting water resistance to mineral sunscreen compositions are described. DETAILED DESCRIPTION

[0026] Mineral sunscreen compositions include a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer. The unique hydrophobic polymer unexpectedly reduces the whiteness of the mineral sunscreen compositions, improves water resistance, and contributes to the formation of robust and stable emulsions. Mineral sunscreen compositions include: a. a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer; b. one or more solvents capable of solubilizing the reaction product of (a); c. one or more mineral UV filtration agents; d. one or more surfactants; and e. of water.

[0027] Mineral sunscreen compositions are typically emulsions or oil-in-water dispersions. a. Hydrophobic polymers #

[0028] The hydrophobic polymer is a reaction product of a natural or food-grade oil (oily component) and an acrylate component. In particular, the natural or food-grade oil may be a drying oil, preferably linseed oil. The reaction product may include an isobutyl methacrylate backbone with a plurality of linseed oil side chains. Preferably, the reaction product is a product sold under the MYCELX® brand by MYCELX Technologies Corporation of Gainesville, Georgia. See US Patent No. 5,698,139 for a description of the MYCELX materials.

[0029] The hydrophobic polymer is composed of an oily component and a polymer component, generally having reacted in a solvent. In a preferred embodiment, the hydrophobic polymer is a reaction product of linseed oil, poly(isobutyl methacrylate) and 2,2,4-trimethyl 1,1,3-pentanediol monoisobutyrate as the solvent.

[0030] The oily component is derived from glycerin and carboxylic acids, such as a fatty acid from flaxseed, to form monoglycerides, diglycerides, and triglycerides. The oily component is preferably of vegetable or natural origin. Vegetable oils are obtained by cold-pressing the seeds of a plant to extract the oil they contain. Among vegetable oils, drying oils such as linseed oil and tung oil, semi-drying oils such as soybean oil and cottonseed oil, and non-drying oils such as coconut oil can be used as the oily component.

[0031] The polymer component may be derived from α,[3-unsaturated] carbonyl compounds. The polymer component is the resulting product of a monomer that is an ester of acrylic acid, crotonic acid, isocrotonic acid, methacrylic acid, sorbic acid, cinnamic acid, maleic acid, fumaric acid, and methylmethacrylic acid. Non-limiting examples of useful polymers that cover any number of reaction possibilities between esters of these compounds include acrylate polymers, methyl methacrylate polymers, methyl / n-butyl methacrylate polymers, methacrylate copolymers, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, n-butyl / isobutyl methacrylate copolymers, or combinations thereof.

[0032] Preferably, the polymer is a poly(isobutyl methacrylate). In particular, the polymer percentage may be from about 23% to about 28%, or about 25.28%, of the hydrophobic polymer, for example, a poly(linseed oil / methacrylate). of isobutyl). The hydrophobic polymer is a reaction product generally formed in a liquid solvent capable of dissolving or diluting the polymer component (poly(oil / polymer)) and the hydrophobic polymer. The solvent or diluent should generally include any liquid or mixture of liquids capable of dissolving or diluting a hydrophobic polymer product. The solvent / diluent can regulate the evaporation, desired flow rate, and coalescence of the hydrophobic polymer. The solvent can be, for example, an aliphatic hydrocarbon, an aromatic hydrocarbon, alcohols, ketones, ethers, aldehydes, phenols, carboxylic acids, carboxylates, synthetic chemicals, and substances of natural origin. Preferably, the solvent is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate. The hydrophobic polymers according to this disclosure and the processes for preparing them are described, for example, in U.S. patentsNos. 5,437,793, 5,698,139, 5,837,146, 5,961,823, 6,180,010, 6,475,393 and 6,805,727. The preferred hydrophobic polymer may be designated as poly(linseed oil / isobutyl methacrylate).

[0033] The amount of hydrophobic polymer in the mineral sunscreen composition will vary, but can be from about 0.1 to about 15% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of hydrophobic polymer in the mineral sunscreen composition is approximately 0.1 to approximately 12% by weight, approximately 0.1 to approximately 10% by weight, approximately 0.1 to approximately 8% by weight, approximately 0.1 to approximately 5% by weight, approximately 0.1 to approximately 3% by weight, approximately 0.5 to approximately 15% by weight, approximately 0.5 to approximately 12% by weight, approximately 0.5 to approximately 10% by weight, approximately 0.5 to approximately 8% by weight, approximately 0.5 to approximately 5% by weight, approximately 0.5 to approximately 3% by weight, approximately 1 to approximately 15% by weight, approximately 1 to approximately 12% by weight, approximately 1 to approximately 10% by weight, approximately 1 to approximately 8% by weight, from approximately 1 to approximately 5% by weight, from approximately 1 to approximately 3% by weight,from approximately 2 to approximately 15% by weight, from approximately 2 to approximately 12% by weight, from approximately 2 to approximately 10% by weight, from approximately 2 to approximately 8% by weight, from approximately 2 to approximately 5% by weight, based on the total weight of the mineral sunscreen composition. a. Solvent capable of solubilizing (a)#

[0034] The hydrophobic polymer is typically solubilized using one or more solvents capable of solubilizing the hydrophobic polymer. The solvent may include one or more solvents used to generate the hydrophobic polymer, for example, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate. The solvent may be a single solvent or a plurality of solvents. For example, in various embodiments, the solvents capable of solubilizing the hydrophobic polymer of (a) have a dispersion component (D), a polar component (P), a component of hydrogen bond (H) and a distance (Ra) less than or equal to 13.4 MPa0.5 according to the Hansen solubility parameters, the distance (Ra) being defined by formula (I):

[0035] in which • Dr is 16.8 MPa0'5, • Pi is 4.8 MPa0'5 and • Hi is 13.0 MPa0'5.

[0036] In a preferred embodiment, the one or more solvents have a dispersion component (D), a polar component (P), a hydrogen bonding component (H) and a distance (Ra) less than or equal to 9.9 MPa0.5 according to the Hansen solubility parameters, the distance (Ra) being defined by formula (I): - Dj- 4- (P - rj -f (D / A)2

[0037] in which • Di is 16.4 MPa0'5, • Pi is 5.0 MPa0'5, and • Hi is 11.7 MPa0'5.

[0038] The solvent may be an oil. The term "oil" refers to a non-aqueous compound, immiscible with water, liquid at 25 °C and atmospheric pressure (760 mmHg; 1.013 x 10⁵ Pa). The solvent may be a non-silicone oil (for example, an oil that does not contain silicon atoms and, in particular, does not contain Si-O groups). Non-limiting examples of solvents (b) include caprylic / capric triglyceride, isopropyl myristate, and polycitronellol acetate. The solvent may include acetone. The solvent may include oleic acid. The solvent may include an oil containing oleic acid (such as a vegetable oil). Table 1 below shows the values ​​of D, P, and H, as well as the values ​​of Ra for the permissible and preferred ranges, for several solvents.

[0039] [Tables 1] Table 1 Solvent (b) DPH Ra (Allowable range) Ra (Preferred range) Ethanol 15.8 8.8 19.4 7.81 8.67 Octyldodecanol 16.1 2.2 7.4 6.33 5.17 Isopropyl myristate 15.9 2.1 2.8 10.70 9.41 Isopropyl alcohol 15.8 6.1 6.4 7.02 5.54 Phenoxyethanol 17.8 5.7 14.3 2.55 3.88 CCTG 18.22 5.39 14.74 3.38 4.76 Castor oil 15.9 4.6 12 2.07 1.12 Polycitronellol acetate 16.4 3 4.2 9.02 7.76 Acetone 15.5 10.4 7 8.61 7.38 Oleic acid 16 2.8 6.2 7.27 5.98

[0040] In some embodiments, if oleic acid is used, at least some of the oleic acid may be supplied by a vegetable oil. The vegetable oil may be a seed or nut oil. The vegetable oil may have an oleic acid content of at least 20% by weight of the vegetable oil. The vegetable oil may include sunflower oil, soybean oil, macadamia nut oil, and / or avocado oil. In some embodiments, the composition may include macadamia nut oil and may be free of, or substantially free of, other vegetable oils.

[0041] For the purposes of this disclosure, the one or more solvents capable of solubilizing the hydrophobic polymer of (a) may not individually solubilize the hydrophobic polymer, but when combined with other solvents, the combination solubilizes the hydrophobic polymer. Thus, when reference is made to a total quantity of one or more solvents capable of solubilizing the hydrophobic polymer, the inclusion of all solvents that solubilize the hydrophobic polymer in combination is envisaged, even if one or more solvents in the combination do not individually solubilize the hydrophobic polymer.

[0042] Non-limiting examples of solvents useful for solubilizing the hydrophobic polymer of point (a), individually or in combination with other solvents, include polycitronellol acetate, caprylic / capric triglyceride, isododecane, isohexadecane, tetradecane, isopropyl myristate, octyldodecanol, ethanol, phenoxyethanol, castor oil, and mixtures thereof. In a preferred embodiment, at least one or more solvents capable of solubilizing the hydrophobic polymer are selected from caprylic / capric triglyceride, polycitronellol acetate, isododecane, and mixtures thereof. In another preferred embodiment, at least one or more solvents capable of solubilizing the hydrophobic polymer is polycitronellol acetate.

[0043] Non-limiting solvents which, individually or in combination with other solvents, are useful for solubilizing the hydrophobic polymer of (a) include dioctylcyclohexane, a mineral oil, isocetyl palmitate, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, a polydecene, octyl cocoate, isodecyl neopentanoate, isohexyl decanoate, isodecyl octanoate, dihexyl ether, isododecane, isodecyl 3,5,5-trimethylhexanoate, oleyl erucate, passionflower oil, jojoba oil, octyl palmitate, macadamia nut oil, isopropyl stearate, rapeseed oil, hexyldecanol, isotridecyl 3,5,5-trimethylhexanonanoate, polycitronellol acetate, decanoyl and octanoyl glycerides mixed, 2-ethylhexanoic acid, a 3-ester,5,5-Trimethyl, cetostearyl octanoate, dimethicone, isopropyl palmitate, octyldodecanol, dioctyl adipate, isopropyl myristate, octyl palmitate (2-ethylhexyl palmitate), octyldodecyl myristate, butylloctanoic acid, isopropyl stearate, caprylic / capric triglycerides, isopropyl isostearate, jojoba oil, cyclomethicone, peanut oil, almond oil, sunflower oil, decyl oleate, avocado oil, olive oil, dibutyl adipate, castor oil, calendula oil, wheat germ oil, Decyl oleate, avocado oil, calendula oil, propylene glycol monoisostearate, cocoglycerides, butylene glycol caprylate / caprate, a Cl2-15 alkyl benzoate, diglyceryl caprylic / capric succinate, caprylic / capric triglyceride, cetearyl isonoanoate, cetearyl octanoate, cetyldimethicone, a coco caprylate / caprate, cocoglycerides,a C12-13 dialkyl tartrate, dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, hexyldecanol, hydrogenated polyisobutene, isoeicosane, isohexadecane, isopropyl palmitate, isopropyl stearate, octyl cocoate, octyl isostearate, octyl octanoate, octyl palmitate, octyl stearate, octyldodecanol, octyldodecyl myristate, isopropyl stearate, pentaerythrityl tetraisostearate, phenyltrimethicone, a polydecene, propylene glycol dicaprylate / dicaprate, stearyl heptanoate, the tricapryline, tridecyl stearate, tridecyl trimellitate, triisostearine, or combinations thereof.

[0044] Additional useful solvents include vegetable hydrocarbon oils, such as liquid triglycerides of fatty acids containing 4 to 10 carbon atoms, for example heptanoic or octanoic acid triglycerides, or alternatively, for example, sunflower oil, corn oil, soybean oil, pumpkin seed oil, grape oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, arara oil, coriander oil, castor oil, avocado oil, caprylic / capric acid triglycerides, for example those sold by Stearineries Dubois or those sold under the names Miglyol 810, 812 and 818 by Dynamit Nobel, jojoba oil, shea butter oil and caprylyl glycol; synthetic esters and ethers, especially of fatty acids, for example purcelline oil, 2-octyldodecyl stearate, 2-octyldodecyl erucate, isostearyl isostearate; hydroxylated esters, for example isostearyl lactate, octyl hydroxystearate, octyldodecyl hydroxystearate, diisostearyl malate or triisocetyl citrate; fatty alcohol heptanoates, octanoates or decanoates; polyol esters, for example propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate;and pentaerythritol esters, for example pentaerythrityl tetraisostearate or isopropyl lauroyl sarcosinate, sold notably under the trade name Eldew SL 205 by the Ajinomoto company; linear or branched hydrocarbons, of mineral or synthetic origin, such as volatile or non-volatile liquid paraffins, and their derivatives, petroleum jelly, polydecenes, isohexadecane, isododecane, a hydrogenated polyisobutene such as Parleam oil, or the mixture of n-undecane (Cn) and n-tridecane (Cn) sold under the reference Cetiol UT by the Cognis company; fluorinated oils which are partially hydrocarbon-based and / or silicone-based, for example those described in document JP-A-2 295 912;silicone oils, for example volatile or non-volatile polymethylsiloxanes (PDMS) having a linear or cyclic silicone chain, which are liquid or pasty at room temperature, in particular volatile silicone oils, in particular cyclopolydimethylsiloxanes (cyclomethicones) such as cyclohexadimethylsiloxane and cyclopentadimethylsiloxane; polydimethylsiloxanes comprising alkyl, alkoxy or phenyl groups, which are pendant or at the end of a silicone chain, these groups containing from 2 to 24 carbon atoms; phenylsilicones, for example phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyldimethicones, diphenylmethyldiphenyltrisiloxanes or 2-phenylethyl trimethylsiloxysilicates, and polymethylphenylsiloxanes; mixtures thereof. ;

[0045] Additional specific examples of solvents include cocoglyceride, cyclomethicone, dimethicone, dicapryl maleate, caprylic / capric triglyceride, isopropyl myristate, octyl stearate, isostearyl linoleate, lanolin oil, coconut oil, cocoa butter, olive oil, avocado oil, aloe extracts, jojoba oil, castor oil, fatty acids such as oleic acid, stearic acid, fatty alcohols such as cetyl alcohol, hexadecyl alcohol, diisopropyl adipate, hydroxybenzoate esters, benzoic acid esters of C9-C15 alcohols, isononyl isononanoate, alkanes, a mineral oil, a silicone, a dimethylpolysiloxane, an ether, a polyoxypropylene butyl ether, a polyoxypropylene cetyl ether, a C12-C15 alkyl benzoate, an aryl alkyl benzoate, isopropyl lauroyl sarcosinate, or mixtures thereof.

[0046] La quantité totale des un ou plusieurs solvants capables de solubiliser le polymère hydrophobe de (a) dans la composition d'écran solaire minéral variera, mais peut être d'environ 0,1 à environ 60 % en poids, sur la base du poids total de la composition d'écran solaire. Dans certains modes de réalisation, il peut être préférable pour la composition d'écran solaire que celle-ci ait une phase huileuse substantielle. Dans de tels cas, la quantité totale des un ou plusieurs solvants peut être d'environ 10 à environ 60 % en poids, d'environ 20 à environ 60 % en poids, d'environ 30 à environ 60 % en poids, d'environ 50 à environ 60 % en poids, d'environ 10 à environ 40 % en poids, d'environ 20 à environ 40 % en poids, ou d'environ 25 à environ 45 % en poids, sur la base du poids total de la composition d'écran solaire. In other embodiments, it may be preferable for the composition of sunscreen to have a small oily phase.In such cases, the total amount of one or more solvents can be from about 0.05 to about 10% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more solvents capable of solubilizing the hydrophobic polymer of (a) in the mineral sunscreen composition is about 0.05 to about 8% by weight, about 0.05 to about 5% by weight, about 0.05% to about 3% by weight, about 0.1 to about 10% by weight, about 0.1 to about 8% by weight, about 0.1 to about 5% by weight, about 0.1 to about 3% by weight, about 0.5 to about 10% by weight, about 0.5 to about 8% by weight, about 0.5 to about 5% by weight, or about 0.5 to about 3% by weight, based on the total weight of the mineral sunscreen composition. a. Mineral UV nitrating agents#

[0047] Non-limiting examples of mineral UV filtering agents include treated or untreated metal oxides such as, for example, titanium dioxide pigments or nanopigments (amorphous or crystallized as rutile and / or anatase), iron oxide, zinc oxide, zirconium oxide, or cerium oxide. Particularly preferred mineral UV filtering agents include titanium dioxide and / or zinc oxide.

[0048] In some cases, the average particle size of the mineral UV filtering agent may be from approximately 5 nm to approximately 25 pm, from approximately 10 nm to approximately 10 pm, or from approximately 15 nm to approximately 5 pm. Mineral UV filtering agents may be nanopigments having an average particle size of approximately 5 nm to approximately 100 nm, from approximately 5 nm to approximately 75 nm, or from approximately 10 nm to 50 nm. Sizes of Larger particles can also be useful, for example from about 1 pm to about 25 pm, from about 5 pm to about 20 pm, or from about 10 pm to about 15 pm.

[0049] Treated pigments are pigments that have undergone one or more surface treatments of a chemical, electronic, mechanochemical and / or mechanical nature with compounds as described, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64, such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal alkoxides (titanium or aluminum), polyethylene, silicones, proteins (collagen or elastin), alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina or glycerol.

[0050] The treated pigments may be titanium oxides treated with: • silica and alumina, such as the products “Microtitanium Dioxide MT 500 SA” and “Microtitanium Dioxide MT 100 SA” from the company Tayca, and the products “Tioveil Fin”, “Tioveil OP”, “Tioveil MOTG” and “Tioveil IPM” from the company Tioxide; • alumina and aluminium stearate, such as the product “Microtitanium Dioxide MT 100 T” from the company Tayca; • alumina and aluminum laurate, such as the product "Microtitanium Dioxide MT 100 S" from the company Tayca; • iron oxides and iron stearate, such as the product “Microtitanium Dioxide MT 100 F” from the company Tayca; • a silica, an alumina and a silicone, such as the products “Microtitanium Dioxide MT 100 SAS”, “Microtitanium Dioxide MT 600 SAS” and “Microtitanium Dioxide MT 500 SAS” from the company Tayca; • sodium hexametaphosphate, such as the product "Microtitanium Dioxide MT 150 W" from the company Tayca; • octyltrimethoxysilane, such as the product "T-805" from the company Degussa; • alumina and stearic acid, such as the product “UVT-M160” from the Kemira company; • alumina and glycerol, such as the product “UVT-M212” from the company Kemira; • an alumina and a silicone, such as the product “UVT-M262” from the company Kemira.

[0051] Other titanium dioxide pigments treated with silicone include TiO2 treated with octyltrimethylsilane, for which the average size of individual particles is 25 and 40 nm, such as the product sold under the brand name "T 805" by Degussa Silices, and TiO2 treated with polydimethylsiloxane, for which the size average individual particle size is 21 nm, as in the product sold under the brand name "70250 Cardre UF TiO2Si3" by Cardre, and TiO2 anatase / rutile treated with polydimethylhydrogenosiloxane and for which the average individual particle size is 25 nm, as in the product sold under the brand name "Microtitanium Dioxide USP Grade Hydrophobic" by Color Techniques.

[0052] Uncoated titanium oxide pigments are, for example, marketed by Tayca under the brands "Microtitanium Dioxide MT500B" or "Microtitanium Dioxide MT600B", by Degussa under the name "P 25", by Wacker under the name "Transparent Titanium Oxide PW", by Miyoshi Kasei under the name "UFTR", by Tomen under the name "ITS", and by Tioxide under the name "Tioveil AQ".

[0053] Uncoated zinc oxide pigments are, for example: • those sold under the name “Z-Cote” by the company Sunsmart; • those sold under the name "Nanox" by the company Elementis; and • those sold under the name “Nanogard WCD 2025” by the company Nanophase Technologies.

[0054] Coated zinc oxide pigments are, for example: • those sold under the name “Zinc Oxide CS-5” by the company Toshibi (ZnO coated with polymethylhydrogenosiloxane); • those sold under the name “Nanogard Zinc Oxide FN” by the company Nanophase Technologies (in 40% dispersion in Finsolv TN, alkyl benzoate in Ci2-Ci5); • those sold under the name “Daitopersion Zn-30” and “Daitopersion Zn-50” by the company Daito (dispersions in oxyethylenated polydimethylsiloxane / cyclopolymethylsiloxane containing 30% or 50% of zinc nanooxides coated with silica and polymethylhydrogenosiloxane); • those sold under the name "NFD Ultrafine ZnO" by the company Daikin (ZnO coated with perfluoroalkyl phosphate and a perfluoroalkylethyl copolymer dispersed in cyclopentasiloxane); • those sold under the name “SPD-Z1” by the company Shin-Etsu (ZnO coated with a grafted silicone acrylic polymer, dispersed in cyclodimethylsiloxane); • those sold under the name “Escalol Z100” by the company ISP (ZnO treated with alumina dispersed in a mixture of ethylhexyl methoxycinnamate / PVP-hexadecene copolymer / methicone); • those sold under the name “Fuji ZNO-SMS-10” by the company Fuji Pigment (ZNO coated with silica and polymethylsilsesquioxane); and • - those sold under the name "Nanox Gel TN" by the company Elementis (ZnO dispersed at a concentration of 55% in Ci2-C15 alkyl benzoate with a hydroxystearic acid polycondensate).

[0055] Uncoated cerium oxide pigments are sold under the name "Colloidal Cerium Oxide" by Rhone-Poulenc. Uncoated iron oxide nanopigments are, for example, sold by Arnaud under the names "Nanogard WCD 2002 (FE 45B)", "Nanogard Iron FE 45 BL AQ", "Nanogard FE 45R AQ" and "Nanogard WCD 2006 (FE 45R)", or by Mitsubishi under the name "TY-220". For example, coated iron oxide nanopigments are sold by the company Arnaud under the names "Nanogard WCD 2008 (FE 45B FN)", "Nanogard WCD 2009 (FE 45B 556)", "Nanogard FE 45 BL 345" and "#Nanogard FE 45 BL" or by the company BASF under the name "Transparent Iron Oxide".

[0056] Mixtures of metal oxides may also be used, in particular of titanium dioxide and cerium dioxide, including the silica-coated mixture of equal weight titanium dioxide and cerium dioxide, sold by Ikeda under the name "Sunveil A", as well as the alumina, silica and silicone-coated mixture of titanium dioxide and zinc dioxide, such as the product "M 261" sold by Kemira, or the alumina, silica and glycerol-coated mixture of titanium dioxide and zinc dioxide, such as the product "M 211" sold by Kemira.

[0057] The total amount of mineral UV filtering agents in mineral sunscreen compositions may vary, but is typically from about 1 to about 30% by weight, based on the total weight of the mineral sunscreen composition. In some cases, the total amount of mineral UV filtering agents may be from about 1 to about 25% by weight, from about 1 to about 20% by weight, from about 1 to about 15% by weight, from about 1 to about 10% by weight, from about 5 to about 30% by weight, from about 5 to about 25% by weight, from about 5 to about 20% by weight, from about 5 to about 5% by weight, from about 5 to about 10% by weight, based on the total weight of the mineral sunscreen composition. a. Surfactant#

[0058] For the purposes of this disclosure, the term "surfactant" includes emulsifiers and detergents. Surfactants are compounds that reduce the surface tension between two liquids or between a liquid and a solid. Surfactants are amphiphilic, meaning they contain hydrophilic (water-loving) head groups and hydrophobic (water-repelling, or oil-loving) tails. Surfactants adsorb at the oil-water interface, thereby reducing the surface tension.

[0059] For the purposes of this disclosure, an "emulsifier" is a surfactant that stabilizes emulsions. Emulsifiers coat the droplets of an emulsion and prevent them from clumping together or coalescing. An "emulsion" is a mixture of two or more liquids, with or without an emulsifier, that are normally immiscible. One of the liquids, the "dispersed phase," forms droplets in the other liquid, the "continuous phase."

[0060] A “detergent” is a surfactant which has cleaning properties in dilute solutions and is generally anionic.

[0061] Surfactants may be anionic, cationic, amphoteric (zwitterionic), or nonionic. Preferably, the emulsions described herein include one or more surfactants selected from anionic surfactants, amphoteric (zwitterionic) surfactants, nonionic surfactants, or mixtures thereof. In various embodiments, the emulsions are preferably free or substantially free of cationic surfactants. In other embodiments, the emulsions include one or more cationic surfactants. In preferred embodiments, the emulsions contain one or more biosurfactants, one or more anionic surfactants, optionally one or more nonionic surfactants, or mixtures thereof.

[0062] In a preferred embodiment, the compositions of this disclosure include a plurality of surfactants, wherein the plurality of surfactants includes one or more biosurfactants and one or more surfactants other than one or more biosurfactants. In other embodiments, the compositions of this disclosure include one or more biosurfactants, one or more anionic surfactants, and optionally, one or more nonionic surfactants.

[0063] In a preferred embodiment, the mineral sunscreen composition includes one or more biosurfactants. In other embodiments, the mineral sunscreen composition includes one or more biosurfactants and one or more additional surfactants different from the one or more biosurfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, or combinations thereof. Biosurfactant

[0064] Biosurfactants are amphiphilic molecules, for example glycolipids (e.g., sophorolipids, rhamnolipids, cellobiose lipids, mannosylerythritol lipids, and trehalose lipids), lipopeptides (e.g., surfactin, iturine, fengycin, arthrofactin, and lichenysin), flavolipids, phospholipids (e.g., cardiolipins), fatty acid ester compounds, fatty acid ether compounds, and high molecular weight polymers such as than lipoproteins, lipopolysaccharide-protein complexes and polysaccharide-protein-fatty acid complexes.

[0065] Biosurfactants are environmentally friendly, biodegradable, and non-toxic, and can be classified as high-molecular-weight or low-molecular-weight biosurfactants. Low-molecular-weight biosurfactants effectively reduce surface and interfacial tension, while high-molecular-weight biosurfactants are more effective as emulsion stabilizers. Examples of low-molecular-weight biosurfactants include glycolipids, such as rhamnolipids, sophorolipids, lipopeptides, and trehalolipids. These low-molecular-weight biosurfactants have hydrophilic heads composed of sugar motifs linked by glycosidic bonds to hydrophobic, nonpolar portions. Examples of high-molecular-weight biosurfactants include polysaccharides, lipopolysaccharides, proteins, and lipoproteins.A polysaccharide-based biosurfactant can be classified into sorbitan esters, sucrose esters, and glucose-based surfactants, which include alkyl polyglycosides and fatty acid glucamides.

[0066] Non-limiting examples of biosurfactants include lipopeptides such as surfactin; fatty acids and phospholipids, polymer matrix biosurfactants; particulate biosurfactants; and bacterial biosurfactants composed of polysaccharides, proteins, lipopolysaccharides, lipoproteins or complex mixtures of these biopolymers.

[0067] Non-limiting examples of commercially available biosurfactants include alkylpolyglycoside available under the brand name EcoSense® 3000 from Dow Chemical ®; D-glucopranose glycosides, oligomers, decyl octyl available under the brand name Glucopon® 215 from BASF Corporation®; rhamnolipids available under the brand name REWOFERM® SL ONE from Evonik®; D-Glucitol, 1-deoxy-l-(methylamino)-, N-coco acyl derivatives available under the brand name GlucoTain® from Clariant®; rhamnolipids from Jeneil Biotech®, and BioLoop® surfactants from Lankem® Ltd.

[0068] In one embodiment, the microbial biosurfactant is a glycolipid such as rhamnolipids (RLP), sophorolipids (SLP), trehalose lipid, or mannosylerythritol lipid (MEL). The biosurfactants may be added in purified form or may be present in the microbial composition due to microbial growth. The biosurfactant may be a sophorolipid. In some embodiments, the biosurfactant may also be a lipopeptide, such as surfactin, and / or a rhamnolipid.

[0069] In some embodiments, a mixture of biosurfactants is present. Preferably, the mixture comprises a rhamnolipid, and optionally one or both among a mannosylerythritol lipid, a surfactin, or a sophorolipid. In a preferred embodiment, the microbe is a non-pathogenic strain of Pseudomonas. Preferably, the strain is a producer of rhamnolipid biosurfactants (RLPs).

[0070] Other microbial strains, including, for example, other fungal strains capable of accumulating significant amounts of, for example, glycolipid biosurfactants, may be used according to the present invention. The biosurfactants useful according to the present invention include a mannoprotein, a beta-glucan, and other metabolites that exhibit bioemulsifying and surface / interfacial tension-reducing properties.

[0071] In various embodiments, one or more biosurfactants are selected from surfactin, iturine, fengycin, lichenysin, serrawettin, phospholipids, rhamnolipid, sophorolipid, trehalolipid, mannosylerythritol lipids, cellobiolipids, lipoproteins, rubiwettins, trehalose, omithine, pentasaccharide lipids, viscosine, bacitracin, lipopeptides and their combinations. In one embodiment, the biosurfactants are selected from one or more glycolipids such as, for example, rhamnolipids, rhamnose-d-phospholipids, trehalose lipids, trehalose dimycolates, trehalose monomycolates, mannosylerythritol lipids, cellobiose lipids, ustilagic acid and / or sophorolipids.

[0072] In various embodiments, the biosurfactant has anionic character, for example, sophorolipids, trehalolipids, and rhamnolipids. Mono-rhamnolipids and di-rhamnolipids are preferred. The preferred alkyl chain length is from C8 to C12. The alkyl chain may be saturated or unsaturated.

[0073] The term “rhamnolipids” includes compounds of general formula (II) and their salts,

[0074]

[0075]

[0076]

[0077]

[0078] in which • mRL=2, 1 or 0, • nRL=l or 0, • R1rl and R2rl = are independently organic residues having 2 to 24, preferably 5 to 13 carbon atoms, in particular alkyl residues optionally branched, optionally substituted, in particular hydroxy-substituted, optionally unsaturated, in particular optionally mono-, bi- or tri-unsaturated, preferably those selected from the group consisting of pentenyl, heptenyl, nonenyl, undecenyl and tridecenyl and (CH2)O-CHs where o = 1 to 23, preferably 4 to 12. If nRL = 1, the glycosidic bond between the two rhamnose motifs is preferably in the a configuration. The optically active carbon atoms of the fatty acids are preferably present as R enantiomers (e.g., I-3-{L3-[2-O-(aL-rhamnopyranosyl)-aL-rhamnopyranosyl]oxydecanoyl]oxydecanoate). The term "di-rhamnolipid" in the context of the present invention refers to compounds of general formula (II) or their salts, where nRL=l. The term "monorhamnolipid" in the context of the present invention refers to compounds of general formula (II) or their salts, where nRL=0. The distinct rhamnolipides are abbreviated according to the following nomenclature: "diRL-CXCY" denotes the di-rhamnolipides of general formula (II), in which one of the residues R1rl and R2rl=(CH2)o—CH3 where o=X-4 and the remaining residue R1 or R2=(CH2)O— CH3 where o=Y-4.

[0079] “monoRL-CXCY” refers to mono-rhamnolipids of general formula (II), in which one of the residues R1rl and R2RL=(CH.sub.2).sub.o—CH.sub.3 where o=X-4 and the remaining residue R1rl or R2rl=(CH2)o—CH3 where o=Y-4. The nomenclature used therefore does not distinguish between “CXCY” and “CYCX”.

[0080] For rhamnolipids where mRL=0, monoRL-CX or diRL-CX is used accordingly.

[0081] If one of the aforementioned indices X and / or Y is provided with ":Z", this means that the respective residue R1rl and / or R2rl is equal to an unbranched, unsubstituted hydrocarbon residue having X-3 or Y-3 carbon atoms having Z double bonds.

[0082] Suitable methods for preparing rhamnolipids are disclosed, for example, in documents EP2786743 and EP2787065. Rhamnolipids can also be produced by fermentation of Pseudomonas, in particular Pseudomonas aeruginosa, which are preferably non-genetically modified cells, a technology already disclosed in the 1980s, as documented, for example, in EP0282942 and DE4127908. Rhamnolipids produced in Pseudomonas aeruginosa cells that have been enhanced to increase rhamnolipid titers by genetic modification can also be used in the context of the present invention; such cells were, for example, disclosed by Lei et al. in Biotechnol Lett. June 2020; 42(6):997-1002. Biosurfactants, particularly glycolipid surfactants, can be produced, for example, as described in EP 0 499 434, US patentNo. 7,985,722, WO 03 / 006146, JP 60 183032, DE 19648439, DE 19600743, JP 01 304034, CN 1337439, JP 2006 274233, KR 2004033376, JP 2006 083238, JP 2006 070231, WO 03 / 002700, FR 2740779, DE 2939519, US patent No. 7,556,654, FR 2855752, EP 1445302, JP 2008 062179 and JP 2007 181789.

[0083] Rhamnolipids produced by Pseudomonas aeruginosa are commercially available from Jeneil Biotech Inc., for example under the trade name Zonix ®, from Logos Technologies (technology acquired by Stepan), for example under the trade name NatSurFact®, from Biotensidon GmbH, for example under the trade name Rhapynal®, from AGAE® Technologies, for example under the name R90, R95, R95Md, R95Dd, from Locus Bio-Energy Solutions and from Shanghai Yusheng Industry Co. Ltd., for example under the trade name Bio-201 Glycolipids®.

[0084] The total amount of one or more biosurfactants in the mineral sunscreen composition, if any, will vary, but may be from approximately 0.1 to approximately 15% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more biosurfactants in the mineral sunscreen composition is from approximately 0.1 to approximately 10% by weight, or

[0085]

[0086] from approximately 0.1 to approximately 5% by weight. In another embodiment, the total amount of one or more biosurfactants in the mineral sunscreen composition is from approximately 0.5 to approximately 15% by weight, from approximately 0.5 to approximately 10% by weight, or from approximately 0.5 to approximately 5% by weight, based on the total weight of the mineral sunscreen composition. In yet another embodiment, the total amount of one or more biosurfactants in the mineral sunscreen composition is from approximately 1 to approximately 15% by weight, from approximately 1 to approximately 10% by weight, or from approximately 1 to approximately 5% by weight, based on the total weight of the mineral sunscreen composition.In preferred embodiments, the total amount of one or more biosurfactants in the mineral sunscreen composition is about 1 to about 8% by weight, about 1 to about 6% by weight, about 1 to about 5% by weight, about 1 to about 4% by weight, or about 1 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Anionic surfactants Popular anionic surfactants known for their good detergent and foaming properties include sodium lauryl sulfate and sodium laureth ether sulfate. Sulfate-based surfactants may optionally be included. In other embodiments, it is preferable for the mineral sunscreen composition to be free or substantially free of sulfate-based surfactants. In some cases, it may be useful to include a milder, non-sulfate anionic surfactant, such as one or more anionic surfactants selected from alkylsulfonates, alkylsulfosuccinates, alkylsulfoacetates, acylisethionates, alkoxylated monoacids, acylated amino acids such as acyltaurates, acyl glycinates, acyl glutamates, acyl sarcosinates, their salts, or mixtures thereof. a. Acyl isethionates # Non-limiting examples of useful acyl isethionates include those of formulas (III) and (IV):

[0087] wherein R, R1, R2, and R3 are each independently selected from H or an alkyl chain having 1 to 24 carbon atoms, said chain being saturated or unsaturated, linear or branched, and X is COO or SO3. Although sodium is represented as a cation in formulas (III) and (IV), the cation for formula (III) and formula (IV) may be an alkali metal ion such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions. Non-limiting examples of acyl isethionates include sodium isethionate, sodium cocoyl isethionate, sodium lauroyl methyl isethionate, and sodium cocoyl methyl isethionate. In some embodiments, a combination of sodium isethionate and sodium cocoyl isethionate is preferred. a. Alkyl sulfonates#

[0088] Examples of alkyl sulfonates include alkyl aryl sulfonates, primary alkane disulfonates, alkene sulfonates, hydroxyalkane sulfonates, alkyl glyceryl ether sulfonates, alpha-olefin sulfonates, alkylphenol polyglycol ether sulfonates, alkylbenzenesulfonates, phenylalkanesulfonates, alpha-olefin sulfonates, olefin sulfonates, alkene sulfonates, hydroxyalkane sulfonates and disulfonates, secondary alkanesulfonates, paraffin sulfonates, ester sulfonates, glycerol esters of sulfonated fatty acids and methyl esters of alpha-sulfo fatty acids, including a methyl ester sulfonate.

[0089] In some cases, an alkyl sulfonate of formula (V) is particularly useful. (V)

[0090] R is selected from H or an alkyl chain having from 1 to 24 carbon atoms, preferably from 6 to 24 carbon atoms, more preferably from 8 to 20 carbon atoms, said chain being saturated or unsaturated, linear or branched. Sodium is represented as a cation in formula (V) above, but the cation may be an alkali metal ion such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions. In some cases, the alkyl sulfonate(s) is / are selected from C8-Ci6 alkyl benzenesulfonates, C10-C20 paraffin sulfonates, C10-C24 olefin sulfonates, their salts, and mixtures thereof. C10-C24 olefin sulfonates may be particularly preferred. A non-limiting example of a C10-C24 olefin sulfonate that can be used in the present compositions is sodium C14-C16 olefin sulfonate. a. Alkyl sulfosuccinates#

[0091] Non-limiting examples of useful sulfosuccinates include those of formula (VI): (VI) O O

[0092] wherein R is a linear or branched alkyl or alkenyl group having from 10 to 22 carbon atoms, preferably 10 to 20 carbon atoms, X is a number representing the average degree of ethoxylation and may range from 0 to about 5, preferably from 0 to about 4, and preferably from about 2 to about 3.5, and M and M' are monovalent cations that may be identical or different from each other. Preferred cations are alkali metal ions such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions.

[0093] Non-limiting examples of alkyl sulfosuccinate salts include oleamido MIPA disodium sulfosuccinate, oleamido MEA disodium sulfosuccinate, lauryl sulfosuccinate disodium, laureth sulfosuccinate disodium, diammonium lauryl sulfosuccinate, diammonium laureth sulfosuccinate, sodium dioctyl sulfosuccinate, oleamide MEA disodium sulfosuccinate, sodium dialkyl sulfosuccinate, and mixtures thereof. In some cases, disodium laureth sulfosuccinate is particularly preferred. a. Alkyl sulfoacetates#

[0094] Non-limiting examples of alkyl sulfoacetates include, for example, alkyl sulfoacetates such as C4-C18 fatty alcohol sulfoacetates and / or their salts. A particularly preferred sulfoacetate salt is sodium lauryl sulfoacetate. Useful cations for the salts include alkali metal ions such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions. a. Alkoxylated monoacids#

[0095] Non-limiting examples of alkoxylated monoacids include compounds corresponding to formula (VII):

[0096] RO[CH2O]u[(CH2)xCH(R')(CH2)y(CH2)zO]v[CH2CH2O]wCH2COOH(VII)

[0097] in which: • R is a hydrocarbon radical containing approximately 6 to approximately 40 carbon atoms; • u, v and w, independently of each other, represent numbers from 0 to 60; • x, y and z, independently of each other, represent numbers from 0 to 13; • R' represents a hydrogen, an alkyl, and

[0098] the sum of x+y+z > 0;

[0099] The compounds corresponding to formula (VII) can be obtained by alkoxylation of ROH alcohols with ethylene oxide as the sole alkoxide, or with several alkoxides and subsequent oxidation. The numbers u, v, and w each represent the degree of alkoxylation. While at the molecular level, the numbers u, v, and w and the total degree of alkoxylation can only be integers, including zero, at the macroscopic level, they are average values ​​in the form of fractional numbers.

[0100] In formula (VII), R is linear or branched, acyclic or cyclic, saturated or unsaturated, aliphatic or aromatic, substituted or unsubstituted. Typically, R is a linear or branched acyclic C6-C40 alkyl or alkenyl group, or a (Ci-C4o)phenyl (alkyl) group, more typically a C8-C22 alkyl or alkenyl group or a (C4-Ci8)phenyl (alkyl) group, and even more typically a Ci2-Ci8 alkyl or alkenyl group or a (C6-Ci6)phenyl (alkyl) group; u, v, w, independently of each other, are typically a number from 2 to 20, more typically a number from 3 to 17, and most typically a number from 5 to 15; x, y, z, independently of each other, are typically a number from 2 to 13, more typically a number from 1 to 10 and most typically a number from 0 to 8.

[0101] Suitable alkoxylated monoacids include, but are not limited to: 5-butoxynol carboxylic acid, 19-butoxynol carboxylic acid, 4-capryleth carboxylic acid, 6-capryleth carboxylic acid, 9-capryleth carboxylic acid, 25-ceteareth carboxylic acid, 7-coceth carboxylic acid, 6-pareth-carboxylic acid C9-Cn, 7-pareth-carboxylic acid Cn-Ci5, 5-pareth-carboxylic acid Ci2-Ci3, 8-pareth-carboxylic acid Ci2-Ci3, 12-pareth-carboxylic acid Ci2-Ci3, 7-pareth-carboxylic acid Ci2-Ci5, 8-pareth-carboxylic acid Ci2-Ci5, 8-pareth-carboxylic acid Ci4-Ci5, 7-deceth carboxylic acid, laureth-3 carboxylic acid, laureth-4 carboxylic acid, laureth-5 carboxylic acid, laureth-6 carboxylic acid, laureth-8 carboxylic acid, laureth-10 carboxylic acid, laureth-11 carboxylic acid, laureth-12 carboxylic acid, laureth-13 carboxylic acid, laureth-14 carboxylic acid, laureth-17 carboxylic acid, PPG-6-laureth-6 carboxylic acid,PPG-8-steareth-7 carboxylic acid, myreth-3 carboxylic acid, myreth-5 acid, carboxylic acid, nonoxynol-5 carboxylic acid, nonoxynol-8 carboxylic acid, nonoxynol-10 carboxylic acid, octeth-3 carboxylic acid, octoxynol-20 carboxylic acid, oleth-3 carboxylic acid, oleth-6 carboxylic acid, oleth-10 carboxylic acid, PPG-3-deceth-2 carboxylic acid, capryleth-2 carboxylic acid, ceteth-13 carboxylic acid, deceth-2 carboxylic acid, hexeth-4 carboxylic acid, isosteareth-6 carboxylic acid, isosteareth-11 carboxylic acid, trideceth-3 carboxylic acid, trideceth-6 carboxylic acid, trideceth-8 carboxylic acid, trideceth-12 carboxylic acid, trideceth-3 carboxylic acid, trideceth-4 carboxylic acid, trideceth-7 carboxylic acid, trideceth-15 carboxylic acid, trideceth-19 carboxylic acid, undeceth-5 carboxylic acid, and mixtures thereof. In some cases, preferred ethoxylated acids include oleth-10 carboxylic acid, laureth-5 carboxylic acid, laureth-11 carboxylic acid, and mixtures thereof. a. Acylamine acids#

[0102] Acylamine acids that may be used include, but are not limited to, amino acid-type surfactants based on alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tyrosine, valine, sarcosine, threonine, and taurine. The most common cation associated with the acylaminated acid may be sodium or potassium. Alternatively, the cation may be an organic salt such as triethanolamine (TEA) or a metal salt. Non-limiting examples of acylaminated acids include those of formula (VIII): O R2 R; ' M " RC' M ■jr'Tî > | V IN VU (L

[0103] wherein R, R1, R2 and R3 are each independently selected from H or an alkyl chain having 1 to 24 carbon atoms, said chain being saturated or unsaturated, linear or branched, and X is COO or SO3. a. Acyl taurates

[0104] Non-limiting examples of acyl taurates include those of formula (IX): (IX)

[0105] wherein R, R1, R2 and R3 are each independently selected from H or an alkyl chain having from 1 to 24 carbon atoms, or from 6 to 20 carbon atoms, or from 8 to 16 carbon atoms, said chain being saturated or unsaturated, linear or branched, and X is COO or SO3. Non-limiting examples of acyl taurate salts include sodium cocoyl taurate, sodium methyl cocoyl taurate, sodium lauroyl taurate and sodium methyl lauroyl taurate. a. Acyl glycinates#

[0106] Non-limiting examples of acyl glycinates include those of formula (X): o (X) RC--NHCHjCOONa

[0107] wherein R is an alkyl chain of 8 to 16 carbon atoms. Although sodium is represented as a cation in formula (X) above, the cation may be an alkali metal ion such as sodium or potassium, ammonium ions, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions. Non-limiting examples of acyl glycinates include sodium cocoyl glycinate, sodium lauroyl glycinate, sodium myristoyl glycinate, potassium lauroyl glycinate, and potassium cocoyl glycinate, and in particular potassium cocoyl glycinate. a. Acyl glutamates#

[0108] Non-limiting examples of acyl glutamates include those of formula (XI): o (XI) RC—NH HOOCClRClbCHCOONa

[0109] in which R is an alkyl chain of 8 to 16 carbon atoms. Sodium is represented as a cation in formula (XI) above, but the cation may be an alkali metal ion such as sodium or potassium ions ammonium, or alkanolammonium ions such as monoethanolammonium or triethanolammonium ions. Non-limiting examples of acylglutamates include dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium capryloyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium olivoyl glutamate, sodium palmitoyl glutamate, sodium stearoyl glutamate, and undecylenoyl glutamate. sodium, triethanolamine mono-cocoyl glutamate, triethanolamine lauroyl glutamate and disodium cocoyl glutamate.In some cases, sodium stearoyl glutamate is particularly preferred. a. A cyl sarcosinates #

[0110] Non-limiting examples of acyl sarcosinates include potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate and ammonium lauroyl sarcosinate.

[0111] The total amount of one or more anionic surfactants in the mineral sunscreen composition, if any, will vary, but may be from about 0.01 to about 6% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more anionic surfactants in the mineral sunscreen composition, if any, is from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 6% by weight, from about 0.1 to about 5% by weight, from about 0.1 to about 3% by weight, from about 0.5 to about 6% by weight, from about 0.5 to about 5% by weight, from about 0.5 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Amphoteric surfactants

[0112] Multiphase cleaning compositions may optionally include one or more amphoteric surfactants. Non-limiting examples of amphoteric surfactants include betaines, alkyl amphoacetates and alkyl amphodiacetates, alkyl sulftaines, alkyl amphopropionates, and combinations thereof.

[0113] Non-limiting examples of betaine-type surfactants include cocobetaine, cocamidopropyl betaine, lauryl betaine, laurylhydroxysulfobetaine, lauryldimethyl betaine, cocamidopropyl hydroxysultaine, behenyl betaine, the capryl / capramidopropyl betaine, lauryl hydroxysultaine, stearyl betaine, or mixtures thereof.

[0114] Non-limiting examples of alkyl amphoacetates and alkyl amphodiacetates include C8-C20 alkyl amphoacetates and C8-C20 alkyl amphodiacetates, such as disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium caprylamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caprylampho-dipropionate, disodium caprylomphodipropionate, lauroamphodipropionic acid, cocoamphodipropionic acid, and combinations thereof.

[0115] The total amount of one or more amphoteric surfactants in the mineral sunscreen composition, if any, will vary, but may be from about 0.01 to about 6% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more amphoteric surfactants in the mineral sunscreen composition, if any, is from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 6% by weight, from about 0.1 to about 5% by weight, from about 0.1 to about 3% by weight, from about 0.5 to about 6% by weight, from about 0.5 to about 5% by weight, from about 0.5 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Non-ionic surfactants

[0116] Multiphase cleaning compositions may optionally include one or more nonionic surfactants. Non-limiting examples of nonionic surfactants include alkoxylated fatty alcohols, alkoxylated polyol esters, alkoxylated glycerides, glucosides, alkanolamides, sorbitan derivatives, or combinations thereof.

[0117] Non-limiting examples of alkoxylated fatty alcohols include laureth-3, laureth-4, laureth-7, laureth-9, laureth-12, laureth-23, ceteth-10, steareth-10, steareth-2, steareth-100, beheneth-5, beheneth-5, beheneth-10, oleth-10, pareth alcohols, trideceth-10, trideceth-12, Cl2-13 pareth-3, C12-13 pareth-23, Cl1-15 pareth-7, PEG hydrogenated castor oil, PEG-75 lanolin, Polysorbate-80, Polysorbate-20, the PPG-5 ceteth-20, PEG-55 propylene glycol oleate, glycereth-26 (PEG-26 glyceryl ether), PEG-120 methyl glucose dioleate, PEG-120 methyl glucose trioleate, PEG-150 pentaerythrityl tetrastearate, and mixtures thereof.

[0118] Non-limiting examples of alkoxylated polyol esters include ethylene oxide adducts with esters of lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, in particular those containing 9 to 100 oxyethylene groups, such as PEG-9 to PEG-50 laurate (under the INCI names: PEG-9 PEG-50 laurate); PEG-9 to PEG-50 palmitate (under the INCI names: PEG-9 palmitate to PEG-50 palmitate); PEG-9 to PEG-50 stearate (under the INCI names: PEG-9 stearate to PEG-50 stearate); PEG-9 to PEG-50 palmitostearate; PEG-9 to PEG-50 behenate (under the INCI names: PEG-9 behenate to PEG-50 behenate); polyethylene glycol 100 EO monostearate (INCI name: PEG-100 stearate); and mixtures thereof.

[0119] Non-limiting examples of alkoxylated glycerides include PEG-6 almond glycerides, PEG-20 almond glycerides, PEG-35 almond glycerides, PEG-60 almond glycerides, PEG-192 apricot kernel glycerides, PEG-11 avocado glycerides, PEG-14 avocado glycerides, PEG-11 babassu glycerides, PEG-42 babassu glycerides, PEG-4 caprylic / capric glycerides, PEG-6 caprylic / capric glycerides, PEG-7 caprylic / capric glycerides, PEG-8 caprylic / capric glycerides, PEG-11 cocoa butter glycerides, PEG-75 cocoa butter glycerides, and coconut glycerides. PEG-7, PEG-9 coconut glycerides, PEG-20 corn glycerides, PEG-60 corn glycerides, PEG-20 evening primrose glycerides, PEG-60 hydrogenated corn glycerides, PEG-5 hydrogenated fish glycerides, PEG-20 hydrogenated palm glycerides, PEG-6 hydrogenated palm / palm kernel glycerides,PEG-16 macadamia nut glycerides, PEG-70 mango glycerides, PEG-13 mink glycerides, PEG-25 moringa glycerides, PEG-42 mushroom glycerides, PEG-2 olive glycerides, PEG-6 olive glycerides, PEG-7 olive glycerides, PEG-10 olive glycerides, PEG-40 olive glycerides, PEG-18 palm glycerides, PEG-12 palm kernel glycerides, PEG-45 palm kernel glycerides, PEG-60 passionflower seed glycerides, PEG-45 safflower glycerides, PEG-60 shea butter glycerides PEG-75, PEG-75 shea butter glycerides, PEG-35 soy glycerides, PEG-75 soy glycerides, PEG-2 sunflower glycerides, PEG-7 sunflower glycerides, PEG-10 sunflower glycerides, PEG-13 sunflower glycerides, PEG-5 tsubakiate glycerides, PEG-10 tsubakiate glycerides,PEG-20 tsubakiate glycerides, PEG-60 tsubakiate glycerides, PEG-8 palm glycerides sodium carboxylate, or mixtures thereof.

[0120] Non-limiting examples of glucosides (also known as "alkylpolyglucosides") include lauryl glucoside, octyl glucoside, decyl glucoside, coco glucoside, caprylyl / capryl glucoside, sodium lauryl glucose carboxylate, or combinations thereof.

[0121] Non-limiting examples of alkanolamides include cocamide MIPA, cocamide DEA, cocamide MEA, cocamide DIPA, and mixtures thereof.

[0122] Non-limiting examples of sorbitan derivatives include polysorbates, for example, polysorbate-20 (POE(20) sorbitan monolaurate), polysorbate-21 (POE(4) sorbitan monolaurate), polysorbate-40 (POE(20) sorbitan monopalmitate), polysorbate-60 (POE(20) sorbitan monostearate), polysorbate-61 (POE(4) sorbitan monostearate), polysorbate-65 (POE(20) sorbitan tristearate), polysorbate-80 (POE(20) sorbitan monooleate), polysorbate-81 (POE(4) sorbitan monooleate), polysorbate-85 (POE(20) sorbitan trioleate), isostearate of sorbitan, sorbitan monolaurate, sorbitan monooleate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, sorbitan tristearate, or mixtures thereof.

[0123] The total amount of one or more nonionic surfactants in the mineral sunscreen composition, if any, will vary, but may be from about 0.01 to about 6% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more nonionic surfactants in the mineral sunscreen composition, if any, is from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 6% by weight, from about 0.1 to about 5% by weight, from about 0.1 to about 3% by weight, from about 0.5 to about 6% by weight, from about 0.5 to about 5% by weight, from about 0.5 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Cationic surfactants

[0124] Non-limiting examples of cationic surfactants include cetrimonium chloride, stearimonium chloride, behentrimonium chloride, behentrimonium methosulfate, behenamidopropyltrimonium methosulfate, stearamidopropyltrimonium chloride, arachidtrimonium chloride, distearyldimonium chloride, dicetyldimonium chloride, tricetylmonium chloride, oleamidopropyl dimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyl dimethylamine, oleyl hydroxyethyl imidazoline, stearamidopropyldimethylamine, behenamidopropyldimethylamine, behenamidopropyldiethylamine, behenamidoethyldiethylamine, behenamidoethyldimethylamine, arachimidopropyldimethylamine, arachimidopropyldiethylamine, arachimidoethyldiethylamine, arachidamidoethyldimethylamine, brassicamidopropyldimethylamine, lauramidopropyldimethylamine, myristamidopropyldimethylamine, dilinoleamidopropyldimethylamine, palmitamidopropyldimethylamine, and mixtures thereof.

[0125] One or more cationic surfactants may be selected from quaternary ammonium compounds, fatty dialkylamines, or mixtures thereof.

[0126] Non-limiting examples of quaternary ammonium compounds include cetrimonium chloride, steartrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, behenamidopropyltrimonium methosulfate, stearamidopropyltrimonium chloride, arachidtrimonium chloride, distearyldimonium chloride, dicetyldimonium chloride, tricetylmonium chloride, and combinations thereof.

[0127] Non-limiting examples of fatty dialkylamines include oleamidopropyl dimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyl dimethylamine, oleyl hydroxyethyl imidazoline, stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl dimethylamine, arachidamidopropyl diethylamine, arachidamidoethyl diethylamine, arachidamidoethyl dimethylamine, brassicamidopropyl dimethylamine, lauramidopropyl dimethylamine, myristamidopropyl dimethylamine, dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, their salts, and combinations thereof.

[0128] In various embodiments, one or more cationic surfactants are preferably chosen from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, stearamidopropyldimethylamine, brassicamidopropyldimethylamine or a mixture thereof.

[0129] The total amount of one or more cationic surfactants in the mineral sunscreen composition, if any, will vary, but may be from about 0.01 to about 6% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more cationic surfactants in the mineral sunscreen composition, if any, is from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 6% by weight, from about 0.1 to about 5% by weight, from about 0.1 to about 3% by weight, from about 0.5 to about 6% by weight, from about 0.5 to about 5% by weight, from about 0.5 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Water

[0130] The amount of water in the mineral sunscreen composition will vary, but may be from about 30 to about 90% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of water may be from about 30 to about 80% by weight, from about 30 to about 70% by weight, from about 30 to about 60% by weight, from about 30 to about 50% by weight, from about 40 to about 90% by weight, from about 40 to about 80% by weight, from about 40 to about 70% by weight, from about 40 to about 60% by weight, from about 40 to about 50% by weight, from about 50 to about 90% by weight, from about 50 to about 80% by weight, from about 50 to about 70% by weight, from about 50 to about 60% by weight, from about 60 to about 90% by weight, from about 60 to about 80% by weight, from about 50 to about 70% by weight, based on the total weight of the mineral sunscreen composition. Organic UV filtration agents

[0131] Mineral sunscreen compositions may optionally include one or more organic UV filtering agents in addition to one or more mineral organic filtering agents. In some embodiments, the mineral sunscreen compositions are free or substantially free of organic UV filtering agents.

[0132] Organic UV filters are known in the art for their use in blocking UV radiation. Non-limiting examples of organic UV filtering agents include: i. Poorly soluble UV filters (moderately soluble in water or oil) such as methylene bis-benzotriazolyl tetramethylbutylphenol, tris-biphenyltriazine, methanone, l,l'-(l,4-piperazinediyl)bis[l-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]- and mixtures thereof. ii. Oil-soluble organic UV filters (at least partially soluble in oil or an organic solvent), such as bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane (BMBM), oxybenzone, sulfisobenzone, diethylhexyl butamido triazone (DBT), drometrizole trisiloxane, ethylhexyl methoxycinnamate (EHMC), ethylhexyl salicylate (EHS), ethylhexyl triazone (EHT), homosalate, p-isoamyl methoxycinnamate, 4'-methylzylidene camphor, octocrylene (OCR), polysilicone-15, and hexyl diethylamino hydroxybenzoyl benzoate (DHHB); iii. Water-soluble UV filters such as phenolbenzimidazole sulfonic acid (PBSA), sodium sulfisobenzone salt, benzylidene camphor sulfonic acid, benzalconium camphor methosulfate, cinoxate, disodium phenyl dibenzylmidazole tetrasulfonate, terephthalylidene dicamphre sulfonic acid, PABA and PEG-25 PABA.

[0133] In some cases, the one or more organic UV filtering agents are a para-aminobenzoic acid derivative, a salicylic acid derivative, a cinnamic acid derivative, a benzophenone or an aminobenzophenone, an anthranillic acid derivative, a [3,[3-diphenylacrylate] derivative, a benzylidenecamphor derivative, a phenylbenzimidazole derivative, a benzotriazole derivative, a triazine derivative, a triresorcinyl triazine, an imidazoline derivative, a benzalmalonate derivative, a 4,4-diarylbutadiene derivative, a derivative benzoxazole, a merocyanine, a malonitrile derivative or diphenyl butadiene malonate, a chalcone, or a mixture thereof.

[0134] Furthermore, combinations of UV filtering agents may be used. For example, a combination of UV filters may include one or more of octocrylene, avobenzone (butylmethoxydibenzoylmethane), oxybenzone (benzophenone-3), octisalate (ethylhexyl salicylate), and homosalate. In another embodiment, at least one mineral UV filtering agent is combined with at least one organic UV filtering agent, for example, one or more organic UV filtering agents selected from octocrylene, avobenzone, octisalate, homosalate, oxybenzone, or combinations thereof.In another embodiment, at least one mineral UV filtering agent is combined with one or more organic UV filtering agents, for example one or more organic UV filtering agents selected from octocrylene, butylmethoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, terephthalylidene diamphrulfonic acid, drometrizole trisiloxane, or mixtures thereof.

[0135] The total amount of one or more organic UV filtering agents, if any, will vary, but may be from about 0.1 to about 15% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the mineral sunscreen composition includes about 0.1 to about 10% by weight, about 0.1 to about 5% by weight, about 0.5 to about 15% by weight, about 0.5 to about 10% by weight, and about 0.5 to about 5% by weight, based on the weight of the mineral sunscreen compositions. Film-forming polymers

[0136] The mineral sunscreen composition may optionally include one or more film-forming polymers, which are also simply called "film-forming agents." The film-forming polymer is preferably a hydrophobic material that imparts film-forming and / or waterproofing characteristics to the mineral sunscreen composition when applied to the skin. One such agent is polyethylene, available from New Phase Technologies under the name Performalene® 400, a polyethylene with a molecular weight of 400. Another suitable film-forming agent is polyethylene 2000 (molecular weight of 2000), available from New Phase Technologies under the name Performalene®. However, another suitable film-forming agent is a synthetic wax, also available from New Phase Technologies under the name Performa® V-825.Other typical film-forming agents include an acrylates / acrylamide copolymer, an acrylates copolymer, a Ci2-C22> acrylates / alkyl methacrylate copolymer, polyethylene, waxes, a VP / dimethiconylacrylate / polycarbamylpolyglycol ester, a butylated PVP, a copolymer of . PVP / hexadecene, an octadecene / MA copolymer, a PVP / eicosene copolymer, a tricontanyl PVP, a Brassica Campestris / Aleuritis Fordi oil copolymer, decamethyl cyclopentasiloxane (and) trimethylsiloxysilicate, and mixtures thereof. In some cases, the film-forming agent is a Ci2-C22 alkyl acrylate / methacrylate copolymer sold under the trade name Allianz OPT® by ISP.

[0137] Many of the common film-forming polymers included in sunscreen compositions are not soluble in ethanol (such as PVP / eicosene copolymer). A film-forming agent commonly used in ethanol-based sunscreen products is Dermacryl LT or Dermacryl 79, marketed by Akzo Nobel (INCI name: acrylates / octylacrylamide copolymer). Dermacryl LT (CAS number: 80570-62-3) is a high molecular weight, hydrophobic, carboxylated acrylic copolymer. It acts as a film-forming agent in a wide range of cosmetic formulations, providing water impermeability, increased occlusivity, and reduced loss of active substances by rubbing.

[0138] The one or more film-forming polymers may be, for example, sodium silicate, colloidal silica, pullulan, a copolymer of polyacrylate-21 and acrylates / ethyl dimethylaminomethacrylate, polyurethanes, polysaccharides, polyvinylpyrrolidone, polyacrylates, acrylate copolymers, and mixtures thereof. In some cases, the mineral sunscreen composition includes at least one polysaccharide, which may have one or more free hydroxyl groups. In addition, in some cases, the polysaccharide is pullulan. In some cases, the mineral sunscreen compositions include at least two film-forming polymers, which may be any two film-forming polymers.

[0139] Non-limiting examples of useful film-forming polymers include acrylic acid, crotonic acid, methacrylic acid, maleic acid, itaconic acid, and combinations and mixtures thereof. Additional film-forming polymers, synthetic or natural, may be used with the acid-containing polymers described above.Non-limiting examples of these additional film-forming polymers include: from the National Starch and Chemical Company, the polymers AMPHOMER® and AMPHOMER® LV-71 (octylacrylamide / acrylates / butylaminoethyl methacrylate copolymer), the polymer AMPHOMER® HC (acrylates / octylacrylamide copolymer), the polymers BALANCE® 0 / 55 and BALANCE® CR (acrylates copolymer), the polymer BALANCE® 47 (octylacrylamide / butylaminoethyl methacrylate copolymer), the polymer RESYN® 28-2930 (VA / crotonates / vinyl neodecanoate copolymer), the polymer RESYN® 28-1310 (VA / crotonates copolymer), the polymers FLEXAN® (sodium polystyrene sulfonate), the polymer DynamX (polyurethane-14 copolymer). (and) AMP-acrylates), the RESYN® XP polymer (acrylates / octyla crylamide copolymer), STRUCTURE® 2001 (acrylates / steareth-20 itaconate copolymer) and STRUCTURE® 3001 (acrylates / ceteth-20 itaconate copolymer); from ISP, OMNIREZ-2000® (PVM / MA ethyl half-ester copolymer), GANEX P-904® (butylated PVP), GANEX V-216® (PVP / hexadecene copolymer), GANEX® V-220 (PVP / eicosene copolymer), GANEX® WP-660 (tricontanyl PVP), GANTREZ® A425 (PVM / MA butyl ester copolymer), GANTREZ® AN-119 PVM / MA copolymer, GANTREZ® ES 225 (PVM / MA ethyl ester copolymer), GANTREZ® ES425 (PVM / MA butyl ester copolymer), GAFFIX® VC-713 (vinylcaprolactam / PVP / dimethylaminoethyl methacrylate copolymer), GAFQUAT® 755 (polyquatemium-11), GAFQUAT HS-100 ® (polyquatemium-28), AQUAFLEX® XL-30 (Polyimide-1), AQUAFLEX® SP-40 (PVP / vinylcaprolactam / DMAPA acrylates copolymer), AQUAFLEX® PX-64 (isobutylene / ethylmaleimide / hydroxyethylmaleimide copolymer),ALLIANZ® LT-120 (acrylates / succinates Cl-2 / hydroxyacrylates copolymer), STYLEZE® CC-10 (PVP / DMAPA acrylates copolymer), STYLEZE® 2000 (VP / acrylates / lauryl methacrylate copolymer), STYLEZE® W-20 (Polyquatemium-55), series of copolymers (PVP / dimethylaminoethyl methacrylate copolymer), ADVANTAGE® S and ADVANTAGE® LC A (vinylcaprolactamNP / dimethylaminoethyl methacrylate copolymer), ADVANTAGE® PLUS (VA / butyl maleate / isobomyl acrylate copolymer); from BASF, ULTRAHOLD STRONG (acrylic acid / ethyl acrylate / t-butylacrylamide), LUVIMER® 100P (t-butyl acrylate / ethyl acrylate / methacrylic acid), LUVIMER® 36D (ethyl acrylate / t-butyl acrylate / methacrylic acid), LUVIQUAT® HM-552 (polyquatemium-16), LUVIQUAT® HOLD (polyquatemium-16); LUVISKOL® K30 (PVP), LUVISKOL® K90 (PVP), LUVISKOL® VA 64 (PVP / VA copolymer), LUVISKOL® VA73W (PVP / VA copolymer), LUVISKOL® VA, LUVISET® PUR (polyurethane-1),LUVISET® Clear (VP / methacrylamide ninylimidazole copolymer), LUVIFLEX® SOFT (acrylates copolymer), ULTRAHOLD® 8 (acrylates / acrylamide copolymers), LUVISKOL® Plus (polyvinylcaprolactam), LUVIFLEX® Silk (PEG / PPG-25 / 25 dimethicone / acrylates copolymer); from Amerchol, AMERHOLD® DR-25 (acrylic acid / methacrylic acid / methacrylates); from Rohm & Haas, ACUDYNE® 258 (acrylic acid / methacrylic acid / acrylates / methacrylates / hydroxyester acrylates); from Mitsubishi and distributed by Clariant, DIAFORMER® Z-301, DIAFORMER® Z-SM and DIAFORMER® Z-400 (methacryloylethyl betaine / acrylates copolymer), ACUDYNE® 180 (acrylates / acrylates hydroxyesters copolymer), ACUDYNE® SCP (ethylenecarboxyamide / AMPSA / methacrylates copolymer), and the rheological modifiers ACCLTLYN®; from ONDEO Nalco, FIXOMER® A-30 and FIXOMER® N-28.(INCI names: methacrylic acid / sodium acrylamidomethyl propane sulfonate copolymer); Noveon, FIXATE® G-100 (AMP-Acrylates / allyl methacrylate copolymer), FIXATE PLUS® (Polyacrylates-X), CARBOPOL® Ultrez 10 (Carbomer), CARBOPOL® Ultrez 20 (C10-30 acrylates / alkyl acrylates copolymer), AVALURE® AC series (acrylates copolymer), AVALURE® UR series (polyurethane-2, polyurethane-4, PPG-17 / IPDI / DMPA copolymer); polyethylene glycol; water-soluble acrylics; water-soluble polyesters; polyacrylamides; polyamines; quaternary polyamines; styrene maleic anhydride; (SMA) resin; a polyethyleneamine; and another conventional polymer that is soluble in polar solvents or that can be made soluble by neutralization with the appropriate base.

[0140] The total amount of one or more film-forming polymers in the mineral sunscreen composition, if any, will vary, but may be from about 0.1 to about 15% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the mineral sunscreen composition includes approximately 0.1 to approximately 10% by weight, approximately 0.1 to approximately 8% by weight, approximately 0.1 to approximately 5% by weight, approximately 0.1 to approximately 3% by weight, approximately 0.5 to approximately 15% by weight, approximately 0.5 to approximately 10% by weight, approximately 0.5 to approximately 8% by weight, approximately 0.5 to approximately 5% by weight, approximately 0.5 to approximately 3% by weight, approximately 1 to approximately 15% by weight, approximately 1 to approximately 10% by weight, approximately 1 to approximately 8% by weight, approximately 1 to approximately 5% by weight or approximately 1 to approximately 3% by weight, based on the total weight of the mineral sunscreen composition. Stilbenoids

[0141] Mineral sunscreen compositions may optionally include one or more stilbenoids. Stilbenoids are byproducts of heartwood formations in trees that possess phytoalexinic properties. Chemically, they are derivatives of stilbene, often containing one or more phenolic functional groups. Biochemically, they belong to the family of phenylalanine derivatives called phenylpropanoids. Much of their biosynthetic pathway is shared with those of aromatic chalconoids, such as chalcone.

[0142] A well-characterized botanical stilbenoid is resveratrol (3,5,4'-trihydroxy-trans-stilbene), a resorcinol derivative first isolated in 1939 from white hellebore (Veratrum album), which is found in the skin of red grapes, thus than in other fruits and nuts, including berries and peanuts. Non-limiting examples of useful stilbenoids include piceide, resveratrol, piceatannol, pterostilbene, and mixtures thereof. In some cases, piceide and resveratrol are the preferred stilbenoids, with piceide being the most preferred.

[0143] The total amount of stilbenoids in mineral sunscreen compositions, if any, may be about 0.01 to 8% by weight, based on the total weight of the sunscreen composition. In other embodiments, the total amount of one or more stilbenoids in the mineral sunscreen composition is about 0.01 to about 5% by weight, about 0.01 to about 3% by weight, about 0.1 to about 8% by weight, about 0.1 to about 5% by weight, about 0.1 to about 3% by weight, about 0.5 to about 8% by weight, about 0.5 to about 5% by weight, about 0.5 to about 3% by weight, about 1 to about 8% by weight, about 1 to about 5% by weight, or about 1 to about 3% by weight, based on the total weight of the mineral sunscreen composition. Photostabilizers

[0144] Photostabilizers are organic compounds that help prevent UV filters from losing their effectiveness in sunlight. Some photostabilizers help to structurally and geometrically stabilize UV ​​filter molecules through electrostatic and van der Waals interactions, making them less likely to participate in chemical reactions. Other photostabilizers protect sunscreens by helping to dissipate UV energy more quickly, thereby reducing or even eliminating the possibility of a chemical reaction. This process is called energy transfer and can occur when the sunscreen agent and the photostabilizing molecules exchange electrons. In this way, the sunscreen agents are fully active in protecting the skin by absorbing harmful rays, while the photostabilizers dissipate the energy.

[0145] Non-limiting examples of photostabilizers include alpha-cyanodiphenyl acrylate, naphthalenedicarboxylic acid diesters or polyesters, 4-hydroxybenzylidenemalonate derivatives or 4-hydroxycinnamate derivatives, 2-pyrrolidinone-4-carboxy ester, ethylhexyl methoxycrylene, diethylhexyl syringylidenemalonate, or combinations thereof.

[0146] In a preferred embodiment, the mineral sunscreen composition includes a combination of photostabilizers selected from stilbenoids and ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate. Stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate can interact synergistically in combination to unexpectedly increase the SPF of the mineral UV filtering agents. Thus, the amount of stilbenoids, ethylhexyl methoxycrylene, and syringylidene malonate of diethylhexyl and the weight ratio of these compounds to each other in sunscreen compositions are sufficient to improve the SPF of the sunscreen composition.

[0147] In one embodiment, one or more stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate are present in sufficient quantities to increase the in vitro SPF of the sunscreen composition by at least 5% compared to an otherwise identical sunscreen composition in which the total amount of stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate is replaced solely by ethylhexyl methoxycrylene. In some cases, the in vitro SPF is increased by at least 6%, at least 7%, at least 8%, at least 9%, or at least 10%.

[0148] In another embodiment, one or more stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate are present in sufficient quantities to increase the in vitro SPF of the sunscreen composition by at least 5% compared to an otherwise identical sunscreen composition in which the total amount of the stilbenoid(s), ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate is replaced solely by diethylhexyl syringylidene malonate. In some cases, the in vitro SPF is increased by at least 8%, or by at least 10%, at least 12%, at least 15%, at least 18%, or at least 20%.

[0149] The different amounts of stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate can be useful in achieving the desired increase in SPF. Accordingly, in some embodiments, the amounts of stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate are as follows: • about 0.1 to about 0.5, preferably about 0.1 to about 0.4, more preferably about 0.2 to about 0.4 of one or more stilbenoids; • approximately 0.25 to approximately 0.75, preferably approximately 0.3 to approximately 0.7, more preferably approximately 0.3 to approximately 0.6 of ethylhexylmethoxycrylene; and • about 0.1 to about 0.5, preferably about 0.1 to about 0.45, more preferably about 0.15 to about 0.4 of diethylhexyl syringylidenemalonate.

[0150] The total amount of the combination of stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate in sunscreen compositions may vary, but is typically about 0.5 to about 10% by weight, based on the total weight of the sunscreen composition. In some cases, the total amount of the combination of stilbenoids, ethylhexyl methoxycrylene, and diethylhexyl syringylidene malonate in sunscreen compositions may be from about 0.5 to about 8% by weight, from about 0.5 to about 5% by weight, from about 0.5 to about 4% by weight, from about 0.5 to about 3% by weight, from about 1 to about 10% by weight, from about 1 to about 8% by weight, from about 1 to about 5% by weight, from about 1 to about 4% by weight or from about 1 to about 3% by weight, based on the total weight of the sunscreen composition. Regardless of the total amount of stilbenoids, ethylhexyl methoxycrylene and diethylhexyl syringylidene malonate in the sunscreen compositions, stilbenoids, ethylhexyl methoxycrylene and diethylhexyl syringylidene malonate may be present in the sunscreen composition according to the weight ratios stated above. Fatty alcohols

[0151] The composition of a mineral sunscreen may optionally include one or more fatty alcohols. Fatty alcohols typically include monohydric alcohols having 8 to 22 carbon atoms, although longer-chain alcohols exceeding 30 carbons may be used. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be linear or branched. In particular, the oil phase may include a linear-chain saturated fatty alcohol with a terminal hydroxyl group. Suitable fatty alcohols include decyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, cetearyl alcohol, icosyl alcohol, and behenyl alcohol.

[0152] The total amount of one or more fatty alcohols, if any, will vary, but may be from about 0.1 to about 10% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the total amount of one or more fatty alcohols may be from approximately 0.1 to approximately 8% by weight, from approximately 0.1 to approximately 5% by weight, from approximately 0.5 to approximately 10% by weight, from approximately 0.5 to approximately 8% by weight, from approximately 0.5 to approximately 5% by weight, from approximately 1 to approximately 10% by weight, from approximately 1 to approximately 8% by weight, from approximately 1 to approximately 5% by weight, from approximately 2 to approximately 8% by weight, from approximately 5 to approximately 10% by weight, or from approximately 5 to approximately 15% by weight, based on the total weight of the mineral sunscreen compositions. Water-soluble solvent

[0153] The mineral sunscreen composition may optionally include one or more water-soluble solvents. The term "water-soluble solvent" is interchangeable with "water-soluble organic solvent" and "water-miscible solvent" and refers to a compound that is liquid at 25 °C and atmospheric pressure (760 mmHg), and that has a solubility of at least 50% in water under these conditions. In some cases, water-soluble solvents have a solubility of at least 60%, 70%, 80%, or 90%. Non-limiting examples of water-soluble solvents include, for example, organic solvents chosen from glycerin, mono-alcohols (e.g., C2x or C2^ alcohols), polyols (polyhydric alcohols), glycols, and one of their mixtures.

[0154] Non-limiting examples of water-soluble organic solvents. Non-limiting examples of water-soluble organic solvents include, for example, organic solvents selected from alcohols (e.g., C26 or C24 alcohols), polyols (polyhydric alcohols), glycols, and mixtures thereof. Non-limiting examples of monoalcohols and polyols include ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol, and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl, monoethyl, and monobutyl ethers of ethylene glycol, propylene glycol, or their ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol, and alkyl ethers of diethylene glycol, for example, monoethyl ether or monobutyl ether of diethylene glycol.Other suitable examples of organic solvents are ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, and propanediol.

[0155] Other non-limiting examples of water-soluble organic solvents include alkanediols (polyhydric alcohols) such as 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, (caprylyl glycol), 1,2-hexanediol, 1,2-pentanediol and 4-methyl-1,2-pentanediol; alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol and isopropanol;glycol ethers such as monomethyl ethylene glycol ether, monoethyl ethylene glycol ether, monobutyl ethylene glycol ether, monomethyl ethylene glycol ether acetate, monomethyl diethylene glycol ether, monoethyl diethylene glycol ether, mono-n-propyl diethylene glycol ether, mono-isopropyl ethylene glycol ether, mono-isopropyl diethylene glycol ether, mono-n-butyl ethylene glycol ether, mono-t-butyl ethylene glycol ether, mono-t-butyl diethylene glycol ether, 1-methyl-l-methoxybutanol, monomethyl propylene glycol ether, monoethyl propylene glycol ether, mono-t-butyl propylene glycol ether, mono-n-propyl propylene glycol ether, mono-isopropyl propylene glycol ether, monomethyl dipropylene glycol ether, monoethyl dipropylene glycol ether, mono-n-propyl dipropylene glycol ether and mono-iso-propyl dipropylene glycol ether;2-pyrrolidone, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbit, sorbitan, acetin, diacetinate, triacetin, sulfolane and mixtures thereof.

[0156] Polyhydric alcohols are useful. Examples of polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, 3-methyl-1,3-butanediol, 1,5-pentanediol, tetraethylene glycol, 1,6-hexanediol, 2-methyl-2,4-pentanediol, polyethylene glycol, 1,2,4-butanetriol, 1,2,6-hexanetriol, and mixtures thereof. Polyol compounds may also be used. Non-limiting examples include aliphatic diols, such as 2-ethyl-2-methyl-1,3-propanediol, 3,3-dimethyl-1,2-butanediol, 2,2-diethyl-1,3-propanediol, 2-methyl-2-propyl-1,3-propanediol, 2,4-dimethyl-2,4-pentanediol, 2,5-dimethyl-2,5-hexanediol, 5-hexene-1,2-diol and 2-ethyl-1,3-hexanediol and any mixture thereof.In a preferred embodiment, the composition includes one or more glycols selected from propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, and mixtures thereof.

[0157] The total amount of one or more water-soluble solvents in the mineral sunscreen compositions, if any, will vary, but may be from about 0.1 to about 20% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the mineral sunscreen composition includes about 0.1 to about 15% by weight, about 0.1 to about 10% by weight, about 0.1 to about 5% by weight, about 1 to about 20% by weight, about 1 to about 15% by weight, about 1 to about 10% by weight, or about 1 to about 5% by weight of one or more water-soluble solvents, based on the total weight of the mineral sunscreen composition. Vitamins

[0158] The composition of a mineral sunscreen may optionally include one or more skin vitamins. "Vitamins" means vitamins, provitamins, and their salts, isomers, and derivatives. Non-limiting examples of suitable vitamins include vitamin B compounds (including B1 compounds, B2 compounds, B3 compounds such as niacinamide, niacinnicotinic acid, tocopheryl nicotinate, nicotinic acid Cl-Cl8 esters, and nicotinyl alcohol; B5 compounds, such as panthenol or "pro-B5," pantothenic acid, pantothenyl; B6 compounds, such as pyroxidine, pyridoxal, pyridoxamine; carnitine, thiamine, riboflavin);vitamin A compounds and all natural and / or synthetic analogues of vitamin A, including retinoids, retinol, retinyl acetate, retinyl palmitate, retinoic acid, retinaldehyde, retinyl propionate, carotenoids (pro-vitamin A) and other compounds that possess the biological activity of vitamin A; vitamin D compounds; vitamin K compounds; vitamin E, or tocopherol, compounds, including tocopheryl sorbate, tocopheryl acetate, other tocopheryl esters and tocopheryl compounds; Vitamin C compounds, including ascorbate, fatty acid ascorbyl esters, and ascorbic acid derivatives, for example, ascorbyl phosphates such as magnesium ascorbyl phosphate and sodium ascorbyl phosphate, ascorbyl glucoside, and ascorbyl sorbate; and vitamin F compounds, such as saturated and / or unsaturated fatty acids. In one embodiment, the composition comprises a vitamin selected from the group consisting of vitamin B compounds, vitamin C compounds, vitamin E compounds, and mixtures thereof. Alternatively, the vitamin is selected from the group consisting of niacinamide, tocopheryl nicotinate, pyroxidine, panthenol, vitamin E, vitamin E acetate, ascorbyl phosphates, ascorbyl glucoside, and mixtures thereof.

[0159] The total amount of one or more vitamins, if any, will vary, but may be from about 0.01 to about 8% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the mineral sunscreen composition may include from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 8% by weight, from about 0.1 to about 5% by weight, or from about 0.1 to about 3% by weight of one or more vitamins, based on the total weight of the mineral sunscreen composition. Antioxidants

[0160] Mineral sunscreen compositions may optionally include one or more antioxidants. Suitable antioxidants include, but are not limited to, water-soluble antioxidants such as sulfhydryl compounds and their derivatives (e.g., sodium metabisulfite and N-acetylcysteine), lipoic acid and dihydrolipoic acid, resveratrol, lactoferrin, and ascorbic acid and ascorbic acid derivatives (e.g., ascorbyl palmitate, ascorbyl polypeptide, and ascorbyl phosphate).

[0161] Oil-soluble antioxidants suitable for use in the compositions of the present invention include, but are not limited to, butylated hydroxytoluene, retinoids (e.g., retinol and retinyl palmitate), tocopherols (e.g., tocopheryl acetate), sodium tocopheryl phosphate, tocotrienols, alkylresorcinols, curcurmin and its derivatives, and ubiquinone. Natural extracts containing antioxidants suitable for use in the compositions of the present invention include, but are not limited to, extracts containing flavonoids and isoflavonoids and their derivatives (e.g., genistein and diadzein), extracts containing resveratrol, and the like. Examples of such natural extracts include grape seeds, green tea, pine bark, Phyllanthus emblica, and propolis.

[0162] The total amount of one or more antioxidants, if any, will vary, but may be from about 0.1 to about 8% by weight, based on the total weight of the composition of mineral sunscreen. In other embodiments, the mineral sunscreen composition may include from about 0.01 to about 5% by weight, from about 0.01 to about 3% by weight, from about 0.1 to about 8% by weight, from about 0.1 to about 5% by weight or from about 0.1 to about 3% by weight of one or more antioxidants, based on the total weight of the mineral sunscreen composition. Various ingredients

[0163] Mineral sunscreen compositions may optionally include or exclude (or are essentially free from) one or more miscellaneous ingredients. Miscellaneous ingredients are ingredients that are compatible with the compositions and do not materially disrupt or affect the fundamental and innovative properties of the compositions. Non-limiting examples of miscellaneous ingredients include preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, antioxidants, flavonoids, vitamins, botanical extracts, UV filtering agents, proteins, protein hydrolysates and / or isolates, fillers (e.g., organic and / or inorganic fillers such as talc, calcium carbonate, silica, etc.), compositional colorants, etc.In various embodiments, the various ingredients are selected from among preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, composition colorants, and mixtures thereof. For the purposes of this disclosure, a "composition colorant" is a compound that colors the composition but does not have an appreciable coloring effect on hair. In other words, the composition colorant is included to give the composition color for aesthetic purposes but is not intended to impart coloring properties to the hair. Hair gels, for example, may be found in a variety of different colors (e.g., light blue, light pink, etc.), but applying the hair gel to the hair does not visibly change the hair color.

[0164] The total amount of one or more miscellaneous ingredients in the mineral sunscreen composition, if any, will vary, but may be an amount of about 0.1 to about 15% by weight, based on the total weight of the mineral sunscreen composition. In other embodiments, the mineral sunscreen composition includes approximately 0.1 to approximately 12% by weight, approximately 0.1 to approximately 10% by weight, approximately 0.1 to approximately 5% by weight, approximately 0.5 to approximately 15% by weight, approximately 0.5 to approximately 12% by weight, approximately 0.5 to approximately 10% by weight, approximately 0.5 to approximately 8% by weight, approximately 0.5 to approximately 5% by weight, approximately 1 to approximately 15% by weight, approximately 1 to approximately 12% by weight, approximately 1 to approximately 10% by weight, approximately 1 to approximately 8% by weight, approximately 1 to approximately 5% by weight, approximately 2 to approximately 15% by weight, approximately 2 to approximately 12% by weight, approximately 2 to approximately 10% by weight, approximately 2 to about 8% by weight, or about 2 to about 5% by weight of one or more miscellaneous ingredients, based on the total weight of the mineral sunscreen composition.

[0165] Ratio between the aqueous phase and the oily phase

[0166] Mineral sunscreen compositions are in the form of oil-in-water emulsions having an aqueous phase and an oily phase. The weight ratio of the oily phase to the aqueous phase will vary, but may be from about 1:5 to about 5:1. In other embodiments, the weight ratio is from about 1:5 to about 1:2, from about 1:5 to about 1:1, from about 1:5 to about 1:2, from about 1:4 to about 4:1, from about 1:4 to about 2:1, from about 1:4 to about 1:1, from about 1:4 to about 1:2, from about 1:3 to about 3:1, from about 1:3 to about 1:1, from about 1:2 to about 2:1 (oily phase : aqueous phase). In various embodiments, the aqueous phase may be higher than the oily phase. Aqueous phase

[0167] Mineral sunscreen compositions are in the form of oil-in-water emulsions having an aqueous phase and an oily phase. The aqueous phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the aqueous phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition. Oily phase

[0168] The amount of mineral sunscreen composition that is not the oil phase is the aqueous phase. The oil phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the oil phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition. Droplet size

[0169] In various embodiments, the average droplet size of the oil phase in the emulsions forming the mineral sunscreen compositions is approximately 10 nm to approximately 2 pm, approximately 10 nm to approximately 1.5 pm, approximately 10 nm to about 1 pm, from about 10 nm to about 800 nm, from about 10 nm to about 600 nm, from about 10 nm to about 500 nm, from about 10 nm to about 250 nm, from about 50 nm to about 2 µm, from about 50 nm to about 1.5 µm, from about 50 nm to about 1 µm, from about 50 nm to about 800 nm, from about 50 nm to about 600 nm, from about 50 nm to about 500 nm, from about 50 nm to about 250 nm, from about 100 nm to about 2 µm, from about 100 nm to about 1.5 µm, from about 100 nm to about 1 µm, from about 100 nm to about 800 nm, from about 100 nm to about 600 nm, from about 100 nm to about 500 nm, from about 100 nm to about 300 nm, from about 150 nm to about 500 nm, from about 150 nm to about 400 nm, from about 200 nm to about 500 nm, or from about 200 nm to about 300 nm.

[0170] Droplet size can be determined using Brookhaven dynamic light scattering (DLS). DLS is a technique used to determine droplet size in a colloidal system or emulsion. When samples are illuminated with a monochromatic laser beam, the particles present in the samples undergo Brownian motion, causing fluctuations in the intensity of the scattered light. The scattered light is then collected at different angles, and the autocorrelation function of these intensity fluctuations is analyzed. The analysis provides information on the scattering rate of the particles, from which the size distribution is deduced using mathematical models.Brookhaven's DLS instruments use advanced algorithms to accurately interpret data, providing information on the dynamic behavior and size characteristics of particles ranging from a few nanometers to several micrometers in a liquid medium. FPS in vitro

[0171] The SPF (sun protection factor) is a measure of how effective a sunscreen composition is at providing protection against ultraviolet B (UV-B) rays. The main cause of redness and sunburn, UV-B rays tend to damage the epidermis, the outermost layers of the skin. The in vitro SPF can be determined using methods known in the art. However, a preferred method for determining the in vitro SPF is the method described in Fageon, L. et al. Int. J. Cosmetic Sci., 2009, 405-17.

[0172] The SPF of the mineral sunscreen composition can be adjusted and increased or decreased as needed, for example, by changing the amounts and combinations of UV filtering agents in the composition. Different SPF levels are desired for different uses and skin types.

[0173] The SPF of the mineral sunscreen composition can be adjusted as required. Therefore, the mineral sunscreen composition can have an SPF from about 5 to about 100. In various embodiments, an SPF of about 5 to about 50, from about 5 to about 25, from about 10 to about 50, from about 10 to about 15, from about 50 to about 100, from about 50 to about 70, or from about 5 to about 10, may be desired. Processes

[0174] This disclosure relates to methods for protecting a keratinous substrate, in particular skin and / or hair, against UV radiation, and to methods for absorbing UV light, and to methods for preventing sunburn. These methods include applying a sunscreen composition to the skin and / or hair and protecting the skin and / or hair against ultraviolet radiation. In addition, methods for increasing the SPF of mineral UV filtering agents, methods for reducing the whiteness of mineral sunscreen compositions, and methods for improving the transparency of mineral sunscreen compositions are included. Methods of implementation

[0175] In a preferred embodiment, the mineral sunscreen composition comprises, consists essentially of, or consists of: a. about 0.1 to about 20% by weight, preferably about 0.1 to about 15% by weight, more preferably about 1 to about 10% by weight of a hydrophobic polymer, which is a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer, wherein preferably,

[0176] The hydrophobic polymer is a reaction product: (a)(i) of a natural or food-grade oil selected from linseed oil, sunflower oil, tung oil, fish oil, cottonseed oil, soybean oil, or combinations thereof, preferably linseed oil, and (a)(ii) of a polymer derived from monomers selected from isobutyl methacrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, and combinations thereof, preferably an isobutyl methacrylate polymer, wherein, even more preferably,

[0177] the hydrophobic polymer is the reaction product of linseed oil and poly(isobutyl methacrylate); a. one or more solvents capable of solubilizing the reaction product of (a), in which preferably,

[0178] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 13.4 MPa0.5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): Fa ™ -y 4(2) 4 (P 3F (# — / F )*

[0179] in which • Dr is 16.8 MPa0'5, • Pr is 4.8 MPa0'5 and • Hr is 13.0 MPa0'5, in which more preferably,

[0180] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 9.9 MPa0,5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): Fa / 4( / 9 - D; V 4 (F - ^)2 4 (P HO2

[0181] in which • Dr is 16.4 MPa0'5, • Pr is 5.0 MPa0'5, and • Hr is 11.7 MPa0'5, wherein even more preferably,

[0182] at least one or more solvents capable of dissolving the hydrophobic polymer of (a) are selected from dioctylcyclohexane, a mineral oil, isocetyl palmitate, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, a polydecene, octyl cocoate, isodecyl neopentanoate, isohexyl decanoate, isodecyl octanoate, dihexyl ether, isododecane, isodecyl 3,5,5-trimethylhexanoate, oleyl erucate, passionflower oil, jojoba oil, octyl palmitate, macadamia nut oil, isopropyl stearate, rapeseed oil, hexyldecanol, isotridecyl 3,5,5-trimethylhexanonanoate, polycitronellol acetate, decanoyl and octanoyl glycerides mixed,2-Ethylhexanoic acid, 3,5,5-trimethyl ester, cetostearyl octanoate, dimethicone, isopropyl palmitate, octyldodecanol, dioctyl adipate, isopropyl myristate, octyl palmitate (2-ethylhexyl palmitate), octyldodecanol myristate, butylloctanoic acid, isopropyl stearate, caprylic / capric triglycerides, isopropyl isostearate, jojoba oil, cyclomethicone, peanut oil, almond oil, sunflower oil, decyl oleate, avocado oil, olive oil, dibutyl adipate, castor oil, oil calendula, wheat germ oil, decyl oleate, avocado oil, calendula oil, propylene glycol monoisostearate, cocoglycerides, butylene glycol caprylate / caprate, a C12-15 alkyl benzoate, diglyceryl caprylic / capric succinate, caprylic / capric triglyceride, cetearyl isonoanoate, cetearyl octanoate, cetyldimethicone, a coco caprylate / caprate, cocoglycerides, a C12-13 dialkyl tartrate, dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, hexyldecanol, a hydrogenated polyisobutene, isoeicosane, isohexadecane, isopropyl palmitate, isopropyl stearate, octyl cocoate, octyl isostearate, octyl octanoate, octyl palmitate, octyl stearate, octyldodecanol, octyldodecyl myristate, isopropyl stearate, pentaerythrityl tetraisostearate, phenyltrimethicone, a polydecene, propylene glycol dicaprylate / dicaprate, stearyl heptanoate, tricaprylin, tridecyl stearate, tridecyl trimellitate, triisostearine, or combinations thereof; a. (c) about 0.1 to about 30% by weight, preferably about 1 to about 25% by weight, more preferably about 5 to about 20% by weight of one or more mineral UV filtering agents, wherein preferably the one or more mineral UV filtering agents are selected from titanium dioxide, zinc oxide, iron oxides, cerium oxides, zirconium oxides, and mixtures thereof; b. approximately 0.1 to approximately 15% by weight, preferably approximately 0.5 to approximately 10% by weight, more preferably approximately 1 to approximately 8% by weight of one or more surfactants, preferably a plurality of surfactants; and c. of water; d. optionally, one or more organic UV filtration agents; e. optionally, one or more film-forming polymers; and f. Optionally, one or more miscellaneous ingredients, preferably in wherein one or more miscellaneous ingredients, if any, are selected from preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, antioxidants, flavonoids, vitamins, botanical extracts, UV filtering agents, proteins, protein hydrolysates and / or isolates, fillers (e.g., organic and / or inorganic fillers such as talc, calcium carbonate, silica, etc.), compositional colorants, wherein, if any, they are preferably in an amount of about 0.1 to about 15% by weight, more preferably about 0.5 to about 10% by weight, more preferably about 1 to about 6% by weight;

[0183] wherein the composition is an oil-in-water emulsion; and

[0184] the weight ratio of the oily phase to the aqueous phase is about 1:5 to about 5:1, preferably about 1:5 to about 1:2, more preferably about 1:5 to about 1:1, (oily phase : aqueous phase).

[0185] Mineral sunscreen compositions are in the form of oil-in-water emulsions having an aqueous phase and an oily phase, as mentioned above. The aqueous phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the aqueous phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition.

[0186] The oil phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the oil phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition.

[0187] The pH of the sunscreen compositions can be from about 4.5 to about 8.5. In other embodiments, the pH of the emulsion can be from about 5 to about 8, from about 5 to about 7, from about 5 to less than 7, from about 5.5 to about 6.5, or from about 6 to about 7.5.

[0188] The average droplet size in the dispersion is preferably from about 10 nm to about 1 pm, from about 10 nm to about 800 nm, from about 10 nm to about 600 nm, from about 10 nm to about 500 nm, from about 10 nm to about 250 nm, from about 50 nm to about 1 pm, from about 50 nm to about 800 nm, from about 50 nm to about 600 nm, from about 50 nm to about 500 nm, from about 50 nm to about 250 nm, from about 100 nm to about 1 pm, from about 100 nm to about 800 nm, from about 100 nm to about 600 nm, from about 100 nm at about 500 nm, from about 100 nm to about 300 nm, from about 150 nm to about 500 nm, from about 150 nm to about 400 nm, from about 200 nm to about 500 nm, or from about 200 nm to about 300 nm.

[0189] In a preferred embodiment, the mineral sunscreen composition may have a smaller oil phase, wherein the sunscreen composition comprises, consists essentially of, or consists of: a. about 0.1 to about 8% by weight, preferably about 0.1 to about 5% by weight, more preferably about 0.5 to about 3% by weight of a hydrophobic polymer, which is a reaction product of a natural oil or of food origin and a methacrylate or acrylate polymer, in which preferably,

[0190] The hydrophobic polymer is a reaction product: (a)(i) of a natural or food-grade oil selected from linseed oil, sunflower oil, tung oil, fish oil, cottonseed oil, soybean oil or combinations thereof, preferably linseed oil, and (a)(ii) of a polymer derived from monomers selected from isobutyl methacrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate and combinations thereof, preferably an isobutyl methacrylate polymer, wherein, even more preferably,

[0191] the hydrophobic polymer is the reaction product of linseed oil and poly(isobutyl methacrylate); a. about 0.1 to about 10% by weight, preferably about 0.1 to about 6% by weight, more preferably about 0.5 to about 5% by weight of one or more solvents capable of solubilizing the reaction product of (a), in which preferably,

[0192] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 13.4 MPa0.5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I):

[0193] in which • Dr is 16.8 MPa0'5, • Pi is 4.8 MPa0'5 and • Hi is 13.0 MPa0.5, in which more preferentially,

[0194] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 9.9 MPa0'5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): F ^4( / ) - Dj)2 4' (P - Ft)2 f (1 / - / ¾)2

[0195] in which • Di is 16.4 MPa0'5, • Pi is 5.0 MPa0'5, and • The fold is 11.7 MPa0.5, in which even more preferentially,

[0196] at least one or more solvents capable of dissolving the hydrophobic polymer of (a) are selected from dioctylcyclohexane, a mineral oil, isocetyl palmitate, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, a polydecene, octyl cocoate, isodecyl neopentanoate, isohexyl decanoate, isodecyl octanoate, dihexyl ether, isododecane, isodecyl 3,5,5-trimethylhexanoate, oleyl erucate, passionflower oil, jojoba oil, octyl palmitate, macadamia nut oil, isopropyl stearate, rapeseed oil, hexyldecanol, isotridecyl 3,5,5-trimethylhexanonanoate, polycitronellol acetate, decanoyl and octanoyl glycerides mixed, 2-ethylhexanoic acid, a 3,5,5-trimethyl ester, cetostearyl octanoate,dimethicone, isopropyl palmitate, octyldodecanol, dioctyl adipate, isopropyl myristate, octyl palmitate (2-ethylhexyl palmitate), octyldodecyl myristate, butylloctanoic acid, isopropyl stearate, caprylic / capric triglycerides, isopropyl isostearate, jojoba oil, cyclomethicone, peanut oil, almond oil, sunflower oil, decyl oleate, avocado oil, olive oil, dibutyl adipate, castor oil, calendula oil, wheat germ oil, decyl oleate, avocado oil, calendula oil, the propylene glycol monoisostearate, cocoglycerides, butylene glycol caprylate / caprate, a C12-15 alkyl benzoate, diglyceryl caprylic / capric succinate, caprylic / capric triglyceride, cetearyl isonoanoate, cetearyl octanoate, cetyldimethicone, a coco caprylate / caprate, cocoglycerides, a C12-13 dialkyl tartrate,dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, hexyldecanol, hydrogenated polyisobutene, isoeicosane, isohexadecane, isopropyl palmitate, isopropyl stearate, octyl cocoate, octyl isostearate, octyl octanoate, octyl palmitate, octyl stearate, octyldodecanol, octyldodecyl myristate, isopropyl stearate, pentaerythrityl tetraisostearate, phenyltrimethicone, a polydecene, propylene glycol dicaprylate / dicaprate, stearyl heptanoate, tricaprylin, tridecyl stearate, tridecyl trimellitate, triisostearine, or combinations thereof; a. one or more mineral UV filtering agents, wherein preferably the one or more mineral UV filtering agents are selected from titanium dioxide, zinc oxide, iron oxides, cerium oxides, zirconium oxides, and mixtures thereof; b. about 0.1 to about 15% by weight, preferably about 0.5 to about 10% by weight, more preferably about 1 to about 8% by weight of one or more surfactants, preferably a plurality of surfactants; c. of water; d. optionally, one or more organic UV filtration agents; e. optionally, one or more film-forming polymers; and f. Optionally, one or more miscellaneous ingredients, preferably in wherein one or more miscellaneous ingredients, if any, are selected from preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, antioxidants, flavonoids, vitamins, botanical extracts, UV filtering agents, proteins, protein hydrolysates and / or isolates, fillers (e.g., organic and / or inorganic fillers such as talc, calcium carbonate, silica, etc.), compositional colorants, wherein, if any, they are preferably in an amount of about 0.1 to about 15% by weight, more preferably about 0.5 to about 10% by weight, more preferably about 1 to about 6% by weight;

[0197] wherein the composition is an oil-in-water emulsion.

[0198] The average droplet size in the dispersion is preferably about 10 nm to about 1 pm, about 10 nm to about 800 nm, about 10 nm to about 600 nm, about 10 nm to about 500 nm, about 10 nm to about 250 nm, about 50 nm to about 1 pm, about 50 nm to about 800 nm, about 50 nm to about 600 nm, about 50 nm to about 500 nm, about 50 nm to about 250 nm, about 100 nm to about 1 pm, about 100 nm to about 800 nm, about 100 nm to about 600 nm, about 100 nm at about 500 nm, from about 100 nm to about 300 nm, from about 150 nm to about 500 nm, from about 150 nm to about 400 nm, from about 200 nm to about 500 nm, or from about 200 nm to about 300 nm.

[0199] The pH of the sunscreen compositions can be from about 4.5 to about 8.5. In other embodiments, the pH of the emulsion can be from about 5 to about 8, from about 5 to about 7, from about 5 to less than 7, from about 5.5 to about 6.5, or from about 6 to about 7.5.

[0200] In another preferred embodiment, the mineral sunscreen composition comprises, consists essentially of, or consists of: a. about 0.1 to about 8% by weight, preferably about 0.5 to about 5% by weight, more preferably about 1 to about 5% by weight of a hydrophobic polymer which is the reaction product of linseed oil and poly(isobuyl methacrylate); b. about 0.1 to about 10% by weight, preferably about 0.1 to about 6% by weight, more preferably about 0.5 to about 5% by weight of a or several solvents capable of solubilizing the reaction product of (a), in which preferably,

[0201] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 13.4 MPa0.5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): Fa - y 4(2) -■ DJ2 < (F - AH + (FF) p

[0202] in which • Dr is 16.8 MPa0'5, • Pr is 4.8 MPa0'5 and • Hi is 13.0 MPa0.5, in which more preferably,

[0203] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 9.9 MPa0'5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): 2 (F - W + P ™ M)2

[0204] in which • Dr is 16.4 MPa0'5, • Pr is 5.0 MPa0'5, and • Hr is 11.7 MPa0'5, wherein even more preferably,

[0205] at least one or more solvents capable of dissolving the hydrophobic polymer of (a) are selected from dioctylcyclohexane, a mineral oil, isocetyl palmitate, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, a polydecene, octyl cocoate, isodecyl neopentanoate, isohexyl decanoate, isodecyl octanoate, dihexyl ether, isododecane, isodecyl 3,5,5-trimethylhexanoate, oleyl erucate, passionflower oil, jojoba oil, octyl palmitate, macadamia nut oil, isopropyl stearate, rapeseed oil, hexyldecanol, isotridecyl 3,5,5-trimethylhexanonanoate, polycitronellol acetate, decanoyl and octanoyl glycerides mixed,2-Ethylhexanoic acid, a 3,5,5-trimethyl ester, cetostearyl octanoate, dimethicone, isopropyl palmitate, octyldodecanol, dioctyl adipate, isopropyl myristate, the , octyl palmitate (2-ethylhexyl palmitate), octyldodecyl myristate, butylloctanoic acid, isopropyl stearate, caprylic / capric triglycerides, isopropyl isostearate, jojoba oil, cyclomethicone, peanut oil, almond oil, sunflower oil, decyl oleate, avocado oil, olive oil, dibutyl adipate, castor oil, calendula oil, wheat germ oil, decyl oleate, avocado oil, calendula oil, propylene glycol monoisostearate, cocoglycerides, butylene glycol caprylate / caprate, a C12-15 alkyl benzoate, succinate caprylic / capric diglyceryl, caprylic / capric triglyceride, cetearyl isonoanoate, cetearyl octanoate, cetyldimethicone, a coco caprylate / caprate, cocoglycerides, a C12-13 dialkyl tartrate, dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, hexyldecanol, a hydrogenated polyisobutene,isoeicosane, isohexadecane, isopropyl palmitate, isopropyl stearate, octyl cocoate, octyl isostearate, octyl octanoate, octyl palmitate, octyl stearate, octyldodecanol, octyldodecyl myristate, isopropyl stearate, pentaerythrityl tetraisostearate, phenyltrimethicone, a polydecene, propylene glycol dicaprylate / dicaprate, stearyl heptanoate, tricaprylin, tridecyl stearate, tridecyl trimellitate, triisostearin, or combinations thereof; a. about 1 to about 30% by weight, preferably about 5 to about 25% by weight of one or more mineral UV filtering agents, wherein preferably the one or more mineral UV filtering agents are selected from titanium dioxide, zinc oxide, iron oxides, cerium oxides, zirconium oxides, or mixtures thereof; b. approximately 0.1 to approximately 15% by weight, preferably approximately 0.5 to approximately 10% by weight, more preferably approximately 1 to approximately 8% by weight of one or more surfactants, preferably a plurality of surfactants; and c. of water; d. optionally, one or more organic UV filtration agents; e. optionally, one or more film-forming polymers; and f. Optionally, one or more miscellaneous ingredients, preferably in wherein one or more miscellaneous ingredients, if any, are selected from preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, antioxidants, flavonoids, vitamins, botanical extracts, UV filtering agents, proteins, protein hydrolysates and / or isolates, fillers (e.g., organic and / or inorganic fillers such as talc, calcium carbonate, silica, etc.), compositional colorants, wherein, if any, they are preferably in an amount of about 0.1 to about 15% in weight, more preferably from about 0.5 to about 10% in weight, more preferably from about 1 to about 6% in weight;

[0206] wherein the composition is an oil-in-water emulsion.

[0207] The average droplet size in the dispersion is preferably about 10 nm to about 1 pm, about 10 nm to about 800 nm, about 10 nm to about 600 nm, about 10 nm to about 500 nm, about 10 nm to about 250 nm, about 50 nm to about 1 pm, about 50 nm to about 800 nm, about 50 nm to about 600 nm, about 50 nm to about 500 nm, about 50 nm to about 250 nm, about 100 nm to about 1 pm, about 100 nm to about 800 nm, about 100 nm to about 600 nm, about 100 nm at about 500 nm, from about 100 nm to about 300 nm, from about 150 nm to about 500 nm, from about 150 nm to about 400 nm, from about 200 nm to about 500 nm, or from about 200 nm to about 300 nm.

[0208] The pH of the sunscreen compositions can be from about 4.5 to about 8.5. In other embodiments, the pH of the emulsion can be from about 5 to about 8, from about 5 to about 7, from about 5 to less than 7, from about 5.5 to about 6.5, or from about 6 to about 7.5.

[0209] In another preferred embodiment, the mineral sunscreen composition comprises, consists essentially of, or consists of: a. about 0.1 to about 20% by weight, preferably about 1 to about 55% by weight, more preferably about 1 to about 10% by weight of a hydrophobic polymer which is the reaction product of linseed oil and poly(isobuyl methacrylate); b. about 0.1 to about 50% by weight, preferably about 1 to about 50% by weight, more preferably about 20 to about 5% by weight of one or more solvents capable of solubilizing the reaction product of (a), in which preferably,

[0210] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 13.4 MPa0.5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): ~ a / 1¾)11 4' (P "" Pj(H

[0211] in which • Dr is 16.8 MPa0'5, • Pr is 4.8 MPa0'5 and • Hr is 13.0 MPa0'5, in which more preferentially,

[0212] the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), and a hydrogen bonding component (H), and a distance (Ra) less than or equal to 9.9 MPa0.5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by formula (I): “s”

[0213] in which • Dr is 16.4 MPa0'5, • Pi is 5.0 MPa0'5, and • Hr is 11.7 MPa0'5, wherein even more preferably,

[0214] at least one or more solvents capable of dissolving the hydrophobic polymer of (a) are selected from dioctylcyclohexane, a mineral oil, isocetyl palmitate, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, a polydecene, octyl cocoate, isodecyl neopentanoate, isohexyl decanoate, isodecyl octanoate, dihexyl ether, isododecane, isodecyl 3,5,5-trimethylhexanoate, oleyl erucate, passionflower oil, jojoba oil, octyl palmitate, macadamia nut oil, isopropyl stearate, rapeseed oil, hexyldecanol, isotridecyl 3,5,5-trimethylhexanonanoate, polycitronellol acetate, decanoyl and octanoyl glycerides mixed,2-Ethylhexanoic acid, 3,5,5-trimethyl ester, cetostearyl octanoate, dimethicone, isopropyl palmitate, octyldodecanol, dioctyl adipate, isopropyl myristate, octyl palmitate (2-ethylhexyl palmitate), octyldodecanol myristate, butylloctanoic acid, isopropyl stearate, caprylic / capric triglycerides, isopropyl isostearate, jojoba oil, cyclomethicone, peanut oil, almond oil, sunflower oil, decyl oleate, avocado oil, olive oil, dibutyl adipate, castor oil, oil calendula, wheat germ oil, decyl oleate, avocado oil, calendula oil, propylene glycol monoisostearate, cocoglycerides, butylene glycol caprylate / caprate, a C12-15 alkyl benzoate, diglyceryl caprylic / capric succinate, caprylic / capric triglyceride, cetearyl isonoanoate, cetearyl octanoate, cetyldimethicone,a coco caprylate / caprate, cocoglycerides, a C12-13 dialkyl tartrate, dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, hexyldecanol, hydrogenated polyisobutene, isoeicosane, isohexadecane, isopropyl palmitate, isopropyl stearate, cocoate, octyl, octyl isostearate, octyl octanoate, octyl palmitate, octyl stearate, octyldodecanol, octyldodecyl myristate, isopropyl stearate, pentaerythrityl tetraisostearate, phenyltrimethicone, a polydecene, propylene glycol dicaprylate / dicaprate, stearyl heptanoate, tricaprylin, tridecyl stearate, tridecyl trimellitate, triisostearin, or combinations thereof; a. about 1 to about 30% by weight, preferably about 5 to about 25% by weight of one or more mineral UV filtering agents, wherein preferably the one or more mineral UV filtering agents are selected from titanium dioxide, zinc oxide, iron oxides, cerium oxides, zirconium oxides, or mixtures thereof; b. about 0.1 to about 15% by weight, preferably about 0.5 to about 10% by weight, more preferably about 1 to about 8% by weight of one or more surfactants, preferably a plurality of surfactants; c. of water; d. optionally, one or more organic UV filtration agents; e. Optionally, one or more miscellaneous ingredients, preferably in wherein one or more miscellaneous ingredients, if any, are selected from preservatives, perfumes, pH adjusters, salts, chelating agents, buffers, antioxidants, flavonoids, vitamins, botanical extracts, UV filtering agents, proteins, protein hydrolysates and / or isolates, fillers (e.g., organic and / or inorganic fillers such as talc, calcium carbonate, silica, etc.), compositional colorants, wherein, if any, they are preferably in an amount of about 0.1 to about 15% by weight, more preferably about 0.5 to about 10% by weight, more preferably about 1 to about 6% by weight; and f. optionally, one or more film-forming polymers;

[0215] wherein the weight ratio of the oily phase to the aqueous phase is from about 1:5 to about 5:1, preferably from about 1:5 to about 1:2, more preferably from about 1:5 to about 1:1, (oily phase : aqueous phase).

[0216] Mineral sunscreen compositions are in the form of oil-in-water emulsions having an aqueous phase and an oily phase, as mentioned above. The aqueous phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the aqueous phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition.

[0217] The oil phase may constitute approximately 10 to approximately 90% by weight of the mineral sunscreen composition, based on the total weight of the mineral sunscreen composition. In other embodiments, the oil phase may constitute approximately 20 to approximately 80% by weight, approximately 30 to approximately 70% by weight, approximately 40 to approximately 60% by weight, approximately 10 to approximately 40% by weight, approximately 20 to approximately 50% by weight, approximately 30 to approximately 60% by weight, approximately 40 to approximately 80% by weight, approximately 50 to approximately 90% by weight, or approximately 60 to approximately 90% by weight, based on the total weight of the mineral sunscreen composition.

[0218] The pH of the sunscreen compositions can be from about 4.5 to about 8.5. In other embodiments, the pH of the emulsion can be from about 5 to about 8, from about 5 to about 7, from about 5 to less than 7, from about 5.5 to about 6.5, or from about 6 to about 7.5.

[0219] The average droplet size in the dispersion is preferably about 10 nm to about 1 pm, about 10 nm to about 800 nm, about 10 nm to about 600 nm, about 10 nm to about 500 nm, about 10 nm to about 250 nm, about 50 nm to about 1 pm, about 50 nm to about 800 nm, about 50 nm to about 600 nm, about 50 nm to about 500 nm, about 50 nm to about 250 nm, about 100 nm to about 1 pm, about 100 nm to about 800 nm, about 100 nm to about 600 nm, about 100 nm at approximately 500 nm, from approximately 100 nm to approximately 300 nm, from approximately 150 nm to approximately 500 nm, from approximately 150 nm to approximately 400 nm, from approximately 200 nm to approximately 500 nm, or from approximately 200 nm to approximately 300 nm. EXAMPLES

[0220] An implementation of this disclosure is provided by means of the following examples. The examples are intended to illustrate the technology but are not intended to be limiting. Example 1 Water resistance

[0221] The emulsions shown in the table below were prepared.

[0222] [Tables2] ABCDE % by weight % by weight % by weight % by weight % by weight % by weight (a) MYCELX®1 1 1 1 (b) CAPRYLIC / CAPRIC TRIGLYCERIDE 0.4 0.4 0.4 0.4 0.4 (c) M-RHAMNOLIPID 2 2 2 2 2 SODIUM COCOYL TAURATE 0.6 0.6 0.6 0.6 0.6 (d) TiO2 - UV GRADE MT 10 0 5 8 10 5 10 (e) WATER / QS QS QS QS QS QS

[0223] 1 Product of the reaction of linseed oil and a methacrylate polymer isobutyl

[0224] The compositions were prepared by mixing m-rhamnolipid, sodium methyl cocoyl taurate, MycelX®, caprylic / capric triglyceride, and a small amount of water at 2,750 rpm for 2 minutes at 25°C. The composition is a homogeneous mixture. Titanium dioxide was added to the homogeneous mixture at different concentrations, and additional water was added to form the final emulsion containing 5%, 8%, and 10% titanium dioxide.

[0225] Composition A of the invention and comparative composition D were used to determine the resistance of the compositions to water and to washing with water. A quantity of 0.5 ml of composition A of the invention and comparative composition D was applied to glass slides and allowed to dry. The whiteness of the slides was evaluated using a DigiEye® Color Measurement spectrometer, which determines the L*a*b* values. The value "L" refers to whiteness. The glass slides were then washed with tap water at 40 °C and at a low flow rate (500 ml / min), and then allowed to dry. The whiteness of the slides was again evaluated using the DigiEye® Color Measurement spectrometer.

[0226] [Tables3] Whiteness (L value) of compositions on glass AD L value (whiteness) on the glass slide in the dry state before washing 93.20 92.70 L value (whiteness) on the glass slide in the dry state after washing 89.18 27.71

[0227] The whiteness of composition A of the invention and of the comparative composition D on the glass slides before washing was almost identical. However, after washing the slides, the glass slide treated with composition A of the invention was significantly whiter than the glass slide treated with composition D of the invention. This illustrates that composition A of the invention is much more water-resistant than the comparative composition D. Example 2 Transparency on the skin

[0228] A quantity of 0.5 ml of composition A of the invention and comparative composition D (shown in Example 1) was applied uniformly to the backs of hands. Composition A of the invention was applied to the back of an individual's left hand, and comparative composition D was applied to the back of the same individual's right hand. Both composition A of the invention and comparative composition D were applied uniformly to the backs of the hands and allowed to dry for 15 minutes.

[0229] The whiteness of the backs of the hands was assessed using a DigiEye® Color Measurement spectrometer, which determines the L*a*b* values. The value “L” refers to whiteness. The results are presented in the table below.

[0230] [Tables4] Whiteness (L value) of compositions on the skin AD L value (whiteness) on the skin, dry state before washing 64.16 75.15

[0231] The results show that skin treated with composition A of the invention was less white (more transparent) than skin treated with the comparative composition D, even though both compositions included the same amount of titanium dioxide. Example 3 Transparency on the skin and water resistance

[0232] A quantity of 0.5 ml of composition C of the invention and comparative composition E (shown in Example 1) was applied uniformly to the backs of hands. Composition C of the invention was applied to the back of an individual's left hand, and comparative composition E was applied to the back of the same individual's right hand. Both composition C of the invention and comparative composition D were applied uniformly to the backs of hands. The whiteness of the backs of the hands was evaluated using a DigiEye® Color Measurement spectrometer, which determines the L*a*b* values, while the compositions were still wet. The value "L" refers to whiteness.

[0233] The compositions were left to dry on the backs of the hands. After 15 minutes of drying, the L values ​​were evaluated again.

[0234] The backs of the hands were then washed with tap water at 40 °C and a low flow rate (500 ml / min). After washing, the backs of the hands were again evaluated using the DigiEye® Color Measurement spectrometer while the hands were still damp. The results are presented in the table below.

[0235] [Tables5] Whiteness (L value) of compositions on skin EC L value (whiteness) on skin, wet state before washing 77.40 78.28 L value (whiteness) on skin, dry state before washing 73.17 76.15 L value (whiteness) on skin, wet state after washing 76.90 71.16

[0236] The whiteness of composition C of the invention and of the comparative composition E on the skin before and after initial application and before drying was essentially identical. However, upon drying, composition C of the invention was less white (more transparent) than the comparative composition E. After rinsing, composition C of the invention was whiter (less transparent) than the comparative composition E. This shows that composition C of the invention is more water-resistant than the comparative composition E. However, composition C of the invention is more transparent after drying on the skin than the comparative composition E, when equal amounts of titanium dioxide are applied to the skin. Example 4 Water resistance and SPF

[0237] The mineral sunscreen compositions shown in the table below were prepared and tested for their water-tight properties.

[0238] [Tableauxô] Control Comparative Invention FGHI % in weight % in weight % in weight % in weight MycelX®1 2.5 2.5 Rhamnolipid 2.7 Sodium methyl cocoyl taurate 0.9 Soybean glyceride 2.5 Steareth-20, steareth-2, cetearyl alcohol, glyceryl stearate and polysorbate-20 3.6 3.6 3.6 C15-19 alkane 7 6 6 6 Cetearyl isononanoate 3.5 3 3 3 Dicaprylyl carbonate 6.5 5.5 5.5 5.5 Caprylyl glycol and glycerin 5.3 5.3 5.3 5.3 Zinc oxide (and) triethoxycaprylylsilane, titanium dioxide (and) isohexadecane (and) triethylhexanoin (and) aluminum stearate (and) alumina, polyhydroxystearic acid 20.3 20.3 20.3 20.3 Crosslinked acrylate polymer / C10-30 alkyl acrylate 0.3 0.3 0.3 0.3 Xanthan gum 0.2 0.2 0.2 0.2 Tocopherol and chlorphenesin, polyhydroxystearic acid, etophenone hydroxyac 2.8 2.8 2.8 2.8 Water QS to 100 QS QS QS QS

[0239]

[0240] 1. Product of the reaction of linseed oil and an isobutyl methacrylate polymer A concentration of 1.3 mg / cm² of each composition from the table above was applied to polymethyl methacrylate (PMMA) (HD6) plates using a robot, and the plates were allowed to dry for approximately 15 to 30 minutes (until completely dry). An initial Sun Protection Factor (SPF) was then measured at 64 locations on the PMMA plates. The plates were then positioned vertically in holders of a dissolution apparatus, which immerses the plates halfway in deionized water (DI) and agitates the plate at 24 rpm at 25 °C for 40 minutes. The plates were removed and allowed to dry vertically for approximately 30 to 40 minutes (until completely dry). The SPF was again measured on the plates using an 8x8 grid at 64 locations. maintaining the same orientation as that used for the initial measurements. The percentage of water resistance was then calculated as follows.

[0241] The lowest percentage of water resistance appears along the bottom row of plates, with an average percentage of water resistance as shown in the table below.

[0242] [Tables?] Control Comparative Invention FGHI 14.47% 31.10% 34.99% 13.34%

[0243] The sunscreen compositions of the invention exhibited a percentage of water resistance more than double that of both the control and the comparative sunscreen composition.

[0244] The preceding description illustrates and describes the disclosure. Furthermore, the disclosure shows and describes only the preferred embodiments. However, as mentioned above, it should be understood that it is suitable for use in various other combinations, modifications, and environments, and that it is suitable for changes or modifications in the scope of the inventive concepts as expressed herein, in accordance with the teachings above and / or the skills or knowledge of the relevant art. The embodiments described herein are further intended to explain the best known embodiments of the applicant and to enable other persons skilled in the art to use the disclosure in such or other embodiments, and with the various modifications required by the particular applications or uses thereof.Consequently, the description is not intended to limit the invention to the form disclosed herein. The appended claims are also intended to be interpreted as including other embodiments.

[0245] When the following terms are used in this patent memorandum, they are used as defined below.

[0246] The terms “comprising”, “having” and “including” are used in their broad and non-limiting sense.

[0247] The expression "mineral UV filtering agent" is interchangeable with the expressions "mineral UV blocking agent", "inorganic UV filtering agent", "inorganic UV blocking agent", "mineral UV filter" and "inorganic UV filter". Mineral UV filtering agents are compounds that do not include carbon atoms in their chemical structures and are capable of filtering or absorbing UV radiation between 280 and 400 nm.

[0248] The compositions and processes of the present invention may include, consist of, or consist essentially of the essential elements and limitations of the disclosure described herein, together with any additional or optional ingredients, components or limitations described herein or otherwise useful.

[0249] All percentages, parts and ratios herein are based on the total weight of the compositions in this disclosure, unless otherwise stated.

[0250] All ranges and values ​​disclosed in the description are inclusive and combinable. For example, any value or point described herein that falls within a range described herein can serve as a minimum or maximum value for deducing a subrange, and so on. Furthermore, all ranges provided are intended to include each specific range within the given ranges, as well as a combination of intermediate subranges. Thus, a range of 1 to 5 specifically includes 1, 2, 3, 4, and 5, as well as subranges such as 2 to 5, 3 to 5, 2 to 3, 2 to 4, 1 to 4, and so on.

[0251] Except in functional examples, or unless otherwise indicated, all numbers expressing quantities of ingredients and / or reaction conditions are understood to be modified in all circumstances by the term "approximately", meaning within + / - 5% of the number indicated.

[0252] As used herein, the expression "at least one" is interchangeable with "one or more" and therefore includes individual components as well as mixtures / combinations.

[0253] The term “treat” (and its grammatical variations) as used herein refers to the application of compositions of this disclosure to the surface of the skin and / or hair. The term “treat” (and its grammatical variations) as used herein also refers to bringing the skin or hair into contact with the compositions of this disclosure.

[0254] The expression "substantially free" or "essentially free" as used herein means that there is less than about 2% by weight of a specific material added to a composition, relative to the total weight of the compositions. However, the compositions may include less than about 1% by weight, less than about 0.5% by weight, less than about 0.1% by weight, less than 0.01% by weight of the specified material, or not include the specified material at all.

[0255] The term "active substance", as used here in relation to the percentage quantity of an ingredient or raw material, refers to 100% of the activity of the ingredient or raw material.

[0256] “Cosmetically acceptable” means that the article in question is compatible with a keratinous substrate such as skin and hair. For example, a "cosmetically acceptable vector" means a vector compatible with a keratinous substrate such as skin and hair.

[0257] The expression "one of their mixtures" does not require that the mixture include all of the elements A, B, C, D, E, and F (although all of the elements A, B, C, D, E, and F may be included). Rather, it indicates that a mixture of two or more of A, B, C, D, E, and F may be included. In other words, it is equivalent to the formulation "one or more elements selected from the group consisting of A, B, C, D, E, F, and a mixture of two or more of A, B, C, D, E, and F."

[0258] Similarly, the expression "one of its / their salts" also refers to "its / their salts." Thus, when the disclosure refers to "an item selected from the group consisting of A, B, C, D, E, F, one of their salts, or a mixture thereof," it indicates that one or more of A, B, C, D, and F may be included, one or more of a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included, or a mixture of any two of A, B, C, D, E, F, a salt of A, a salt of B, a salt of C, a salt of D, a salt of E, and a salt of F may be included.

[0259] The salts referred to throughout the disclosure may include salts having a counterion such as an alkali metal, an alkaline earth metal, or an ammonium counterion. This list of counterions is not exhaustive.

[0260] The term "stable emulsion" refers to a composition which does not undergo phase separation up to a temperature of 45 °C for at least two weeks.

[0261] The expression "included" for a range of concentrations means that the limits of that range are included in the defined interval.

[0262] “Volatile”, as used herein, means having a flash point of less than about 100 °C.

[0263] “Non-volatile”, as used herein, means having a flash point greater than approximately 100 °C.

[0264] The term "polymers", as defined herein, includes homopolymers and copolymers formed from at least two different types of monomers.

[0265] The term "INCI" is an abbreviation for International Nomenclature of Cosmetic Ingredients, which is a system of names provided by the International Nomenclature Committee of the Personal Care Products Council to describe the ingredients of personal care products.

[0266] The expression "ratio by weight" or "ratio by mass", as used here, refers to the amount of a substance in proportion to a mixture containing said substance substance, and is calculated by dividing the quantity of said substance by its weight in the mixture by the weight of the mixture containing said substance. For example, a weight ratio of 0.4 for substance A in a mixture of A, B, and C indicates that the weight of substance A divided by the total weight of substances A, B, and C is 0.4.

[0267] In this document, all provided ranges are intended to include each specific range within the given ranges, as well as a combination of intermediate sub-ranges. Thus, a range from 1 to 5 specifically includes 1, 2, 3, 4 and 5, as well as sub-ranges such as 2 to 5, 3 to 5, 2 to 3, 2 to 4, 1 to 4, etc.

[0268] Some of the various identified component categories may overlap. In such cases where an overlap may exist and the composition includes both components (or the composition includes more than two overlapping components), an overlapping compound does not represent more than one component. For example, a fatty acid may be characterized as both a nonionic surfactant and a fatty compound. If a particular composition includes both a nonionic surfactant and a fatty compound, a single fatty acid will serve only as either a nonionic surfactant or a fatty compound (the single fatty acid does not serve as both a nonionic surfactant and a fatty compound).

Claims

67 Claims

1. Mineral sunscreen composition comprising: (a) a hydrophobic polymer formed as a reaction product of a natural or food-grade oil and a methacrylate or acrylate polymer, preferably wherein the hydrophobic polymer is the reaction product of about 50 to about 85 parts by weight of the natural or food-grade oil and about 15 to about 50 parts by weight of the methacrylate or acrylate polymer, more preferably wherein the hydrophobic polymer is the reaction product of about 72 to about 77 parts by weight of the natural or food-grade oil and about 23 to about 28 parts by weight of a methacrylate polymer, and even more preferably the hydrophobic polymer is the reaction product of linseed oil and poly(isobutyl methacrylate); (b) one or more solvents capable of solubilizing the reaction product of (a);(c) one or more mineral UV filtration agents; (d) one or more surfactants; and (e) water; wherein the composition is an oil-in-water emulsion.

2. Composition according to claim 1, wherein the one or more solvents capable of solubilizing the reaction product of (a) have a dispersion component (D), a polar component (P), a hydrogen bonding component (H) and a distance (Ra) less than or equal to 13.4 MPa0'5 according to the Hansen solubility parameters, in which the distance (Ra) is defined by the formula (I): Æa = ^4 f D - p (p _ p, p 4-. (ff - ^)2 ® in which -Dr is 16.8 MPa0'5, - Pi is 4.8 MPa0'5 and -Hi is 13.0 MPa0'5.

3. Composition according to claims 1 or 2, wherein at least one or more solvents capable of solubilizing the reaction product of (a) is selected from polycitronellol acetate, the caprylic / capric triglyceride, isododecane, isohexadecane, tetradecane, isopropyl myristate, isopropyl alcohol, octyldodecanol, ethanol, phenoxyethanol, castor oil, or mixtures thereof.

4. Composition according to any one of the preceding claims, wherein one or more mineral UV filtering agents are selected from titanium dioxide, zinc oxide, iron oxides, cerium oxides, zirconium oxides and mixtures thereof, preferably wherein the sunscreen composition is free from organic UV filtering agents.

5. Sunscreen composition according to any one of the preceding claims, wherein the total amount of one or more inorganic UV filtering agents is from about 1 to about 25% by weight, based on the total weight of the sunscreen composition.

6. Composition according to claim 1, wherein one or more biosurfactants are selected from glycolipids, wherein the glycolipids are selected from sophorolipids, rhamnolipids, trehalose lipids, mannosylerythritol lipids, or combinations thereof.

7. Composition according to any one of the preceding claims, wherein at least one of the one or more surfactants is an anionic surfactant, wherein the anionic surfactants are selected from acylglutamates, acyltaurates, alkanoyl isethionates, alkyl succinates, alkyl sulfosuccinates, N-alkyl sarcosinates, alkyl phosphates, alkyl etherphosphates, alkyl ethercarboxylates, alpha-olefin sulfonates, or combinations thereof, preferably wherein at least one of the one or more anionic surfactants is an acyltaurate.

8. Composition according to claim 1, wherein the oil-in-water emulsion is a dispersion having a droplet size of about 10 nm to about 1 pm.

9. A mineral sunscreen composition according to claim 1, comprising: (a) about 0.5 to about 10% by weight of a hydrophobic polymer resulting from a reaction product of a natural or food-grade oil selected from linseed oil, sunflower oil, tung oil, fish oil, cottonseed oil, soybean oil and

10. their combinations and a polymer formed from one or more monomers selected from isobutyl methacrylate, methyl methacrylate, ethyl methacrylate and n-butyl methacrylate and their combinations; (b) about 0.1 to about 10% by weight of one or more solvents capable of solubilizing the reaction product of (a); (c) one or more mineral UV filtration agents; (d) about 1 to about 10% by weight of a plurality of surfactants, wherein the plurality of surfactants comprises: (d)(i) approximately 0.1 to approximately 8% by weight of one or more rhamnolipids; and (d)(ii) about 0.1 to about 8% by weight of one or more additional surfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants and cationic surfactants, or mixtures thereof; and (e) water; in which the composition is an oil-in-water emulsion having a droplet size of approximately 10 nm to approximately 2 pm, and All percentages by weight are based on the total weight of the composition. Sunscreen composition according to any one of the preceding claims for use on skin or hair to protect skin and hair against UV rays.