MINERAL NON-BLEACHING SUNSCREEN

Abstract

NON-BLEACHING MINERAL SUNSCREEN The invention relates to a mineral sunscreen composition in the form of a stable oil-in-water emulsion comprising aqueous and oily phases, including a UV-absorbing system comprising at least one UV-attenuating physical material, at least one hydrophobically modified aqueous-phase polymer thickener having carboxylic acid groups, and an emulsification system comprising at least one emulsifier having a high HLB and at least one emulsifier having a low HLB. The composition includes a solvent system comprising aqueous-phase solvents and oil-phase solvents comprising one or a combination of oily / greasy compounds and silicones. Figure for abstract: none

Description

Title of the invention: NON-BLEACHING MINERAL SUNSCREEN FIELD OF INVENTION

[0001] This disclosure relates to skin care compositions that provide UV protection, in particular that do not lighten or whiten upon application. CONTEXT OF THE INVENTION

[0002] Photoprotection of keratinous substrates, including both skin and hair, is considered by many to be necessary to facilitate protection against sun damage, sunburn, photoaging, and to reduce the risk of developing skin cancer caused by exposure to ultraviolet (“UV”) radiation.

[0003] The negative effects of exposure to ultraviolet (“UV”) radiation are well known. By way of example only, prolonged exposure to sunlight causes damage, such as sunburn, and dries out hair, making it brittle. In particular, when skin is exposed to UV light (wavelengths of approximately 290 nm to approximately 400 nm), long-term damage can lead to serious conditions such as skin cancer. Furthermore, UV light 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. This process is commonly referred to as photoaging. 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, including effects on the biomechanical properties, appearance, and health of the epidermis, erythema (sunburn), immediate darkening of the skin, the appearance of wrinkles leading to premature skin aging (e.g., photoaging), and various other skin health problems that may include melanoma or other skin cancers associated with UV / sun exposure.

[0004] Sunscreens can be used to provide protection against UV damage and delay the signs of photoaging. One of the current trends in photoprotection is the use of mineral sunscreens, which offer the desired efficacy and good sensory properties, such as a fluid texture and a non-greasy feel when applied. Consumers prefer mineral sunscreen compositions to include natural and non-irritating components that appear natural (invisible) once applied. The degree of UV protection provided by a mineral sunscreen composition is directly related to the quantity and type of UV filters it contains. Naturally, relatively high concentrations of mineral / inorganic UV filters (also known as physical UV attenuating materials) are necessary to achieve greater efficacy.It is well known in the industry that providing mineral-based sunscreens with a high sun protection factor (SPF) presents a challenge. Higher concentrations of physical UV-mitigating materials typically result in whitening upon application to the skin, which is problematic for consumers. Furthermore, it is difficult to develop formulas with higher concentrations of physical UV-mitigating materials that are shelf-stable, maintain the SPF benefit, and do not cause whitening on darker skin tones.

[0005] What is needed is a composition that offers the level of protection achievable with physical UV attenuating materials in a formulation that offers a pleasant texture, that does not whiten with the same or higher SPF levels compared to sunscreens having high amounts of physical UV attenuating materials that can be unstable or whiten the skin. BRIEF SUMMARY OF THE INVENTION

[0006] This disclosure proposes a mineral sunscreen composition that includes UV attenuating physical materials known to be non-irritating, natural, and skin-friendly, providing stable sun protection and emulsion structural stability in the presence of high amounts of UV attenuating physical materials selected from metal oxide UV filters. Some embodiments propose a mineral sunscreen composition that is a stable oil-in-water emulsion (as further defined herein) comprising aqueous and oily phases.

[0007] The composition of mineral sunscreens addresses challenges known in the art in which high levels of physical UV-attenuating materials have proven difficult to stabilize in formulations, and in which, in high quantities, the Physical UV attenuating materials lighten or whiten the skin upon application.

[0008] In one embodiment, the disclosure proposes a mineral sunscreen composition in the form of a broad-spectrum, low-viscosity oil-in-water emulsion comprising aqueous and oily phases, the mineral sunscreen composition comprising: a UV-absorbing system comprising at least one UV-attenuating physical material, the at least one UV-attenuating physical material comprising zinc oxide particles having an average size in the range of about 15 nm to about 35 nm, the zinc oxide particles being coated with triethoxycaprylylsilane; an emulsification system comprising at least one high-HLB emulsifier having an HLB greater than 13, and at least one low-HLB emulsifier having an HLB less than 6; at least one hydrophobically modified aqueous-phase anionic polymer thickener comprising carboxylic acid residues;in which high HLB and low HLB emulsifiers combined with a hydrophobically modified anionic polymer thickener are present in a ratio in the range of about 1.0:0.05 to about 1.0:0.15, and in which the mineral sunscreen composition has an SPF that is at least 40, a UVA1:UV ratio that is at least 0.7, and a critical wavelength that is greater than 370 nm.

[0009] In certain embodiments, the mineral sunscreen composition has one or more of the following properties: a. a critical wavelength, as determined by FDA critical wavelength procedures, of at least 370 nm; b. an FPS value of at least 15, and, in certain embodiments, of at least 30, and, in certain embodiments, of at least 40 and, in certain embodiments, of at least 50; c. a UVA1 / UV ratio of 0.7 or more.

[0010] In certain embodiments, the mineral sunscreen composition has one or more of the following properties: a. in which the mineral sunscreen composition excludes organic UV filters. b. wherein the zinc oxide particles are selected from the group consisting of zinc oxide (and) triethoxycaprylylsilane, having a particle size of about 20 nm, zinc oxide (and) silica (and) hydrogen dimethicone, having a particle size of about 25 nm, zinc oxide (and) caprylic / capric triglyceride (and) polyhydroxystearic acid (and) isostearic acid, having a particle size of about 60 nm, zinc oxide (and) Cl2-15 alkyl benzoate (and) triethoxycaprylylsilane (and) acid polyhydroxystearic, having a particle size of about 30 nm, and their combinations. c. wherein at least one UV-attenuating physical material is present in the mineral sunscreen composition in the range of about 10% to about 25%, all amounts being based on the total weight of the mineral sunscreen composition. d. The hydrophobically modified aqueous phase anionic polymer thickener comprises acrylates / C10-30 alkyl acrylate crosslinked polymer. e. The emulsification system comprises glyceryl stearate, steareth-2, steareth-20 and polysorbate 20. f. comprising a rheology modifier selected from the group consisting of xanthan gum, cellulose gum, biosaccharide gum, carrageenan, gellan gum, or associative thickeners such as Sepinov EMT10 (TM) or Sepigel (TM), Aristoflex (TM), and their combinations. g. comprising at least one antioxidant comprising one or more of diethylhexyl syringylidene malonate and ethylhexyl methoxycrylene. h. comprising an oil-phase solvent system comprising one or a combination of oily / fatty compounds and silicones selected from caprylic / capric triglyceride, cetearyl isononanoate, cetearyl alcohol, dicaprylyl carbonate, isohexadecane, C15-19 alkane, dimethicone and combinations thereof. i. comprising one or more additives selected from the group consisting of skin conditioners, moisturizers, skin actives, preservatives, antimicrobials, powders, fillers and combinations thereof. j. comprising one or more additives selected from the group consisting of triethylhexanoin, glycerin, propanediol, tocopherol, niacinamide, hydroxyacetophenone, citric acid, chlorphenesin, caprylyl glycol, aluminium stearate, alumina, silica, cellulose, and combinations thereof. k. wherein the aqueous phase components and the oil phase components, excluding physical UV attenuating materials and any powders, respectively, are present in the mineral sunscreen composition at a weight ratio of aqueous components to oil components in a range of about 1:1 to about 4:1.

[0011] The present invention also relates to a method for forming an emulsion metastable structure formed by the interaction of carboxylic acid residues of a hydrophobically modified anionic polymer thickener in aqueous phase comprising a C10-30 acrylate / alkyl acrylate crosslinked polymer with a UV attenuating physical material comprising one or more of zinc oxide and / or titanium dioxide, more particularly a coated form of one or more of zinc oxide and / or titanium dioxide, wherein the coating is selected from hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone and / or hydrogen dimethicone, triethoxycaprylysilane, and combinations thereof, the emulsion of which provides a high SPF that does not whiten upon application.

[0012] In one embodiment, the disclosure proposes a metastable structured emulsion comprising a hydrophobically modified aqueous anionic polymer thickener comprising a C10-30 acrylate / alkyl acrylate crosslinked polymer and a UV-attenuating physical material comprising one or more zinc oxides and / or titanium dioxides, one or more zinc oxides and / or titanium dioxides comprising a coating selected from hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone, hydrogen dimethicone, triethoxycaprylysilane, or a combination thereof, the metastable structured emulsion formed by the interaction of carboxylic acid residues of the hydrophobically modified aqueous polymer thickener with the coated zinc oxide and / or titanium dioxide, this emulsion providing a high SPF that does not whiten during application by rubbing onto a substrate such as the skin.

[0013] In one embodiment, the disclosure proposes a mineral sunscreen composition in the form of a broad-spectrum, low-viscosity oil-in-water emulsion comprising aqueous and oily phases, the mineral sunscreen composition comprising: a UV-absorbing system comprising at least one UV-attenuating physical material, the at least one UV-attenuating physical material comprising zinc oxide particles having a primary particle size in the range of about 15 nm to about 35 nm, triethoxycaprylylsilane-coated zinc oxide particles, and titanium dioxide; an emulsification system comprising at least one high-HLB emulsifier having an HLB greater than 13 comprising steareth-20 and polysorbate 20 and at least one low-HLB emulsifier having an HLB less than 6, comprising glyceryl stearate and steareth-2; at least one polymeric dispersant comprising polyhydroxystearic acid;at least one hydrophobically modified aqueous anionic polymer thickener comprising acrylates / C10-30 alkyl acrylate crosslinked polymer; at least one rheology modifier comprising xanthan gum; at least one antioxidant comprising diethylhexyl syringylidene malonate and ethylhexyl methoxycrylene; a solvent system; in oil phase comprising caprylic / capric triglyceride, cetearyl isononanoate, cetearyl alcohol, dicaprylyl carbonate, isohexadecane, C15-19 alkane and dimethicone; and one or more additives selected from the group consisting of triethylhexanoin, glycerin, propanediol, tocopherol, niacinamide, hydroxyacetophenone, citric acid, chlorphenesin, caprylyl glycol, aluminium stearate, alumina, silica, cellulose, and combinations thereof, wherein high HLB and low HLB emulsifiers combined in hydrophobically modified anionic polymer thickener are present in a ratio in the range of about 1.0:0.05 to about 1.0:0.15, and wherein the mineral sunscreen composition has an SPF of at least 40, a UVA-I / UV ratio of at least 0.7 and a critical wavelength greater than 370 nm.

[0014] The present invention also relates to a method of inhibiting the contact of UV radiation with a keratinous substrate by applying the mineral sunscreen composition disclosed above to a surface of the keratinous substrate.

[0015] These aspects of the invention, as well as others, are set out in the attached claims and described in more detail in the detailed description of the invention.

[0016] This disclosure describes examples of embodiments according to the general inventive concepts and is not intended to limit the scope of the invention in any way. Indeed, the invention as described in the patent application is broader than, and not limited by, the examples of embodiments presented herein, and the terms used herein have their full ordinary meaning. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention provides a lightweight, pleasant-to-the-touch mineral sunscreen composition with good spreadability that does not lighten or whiten the skin. The mineral sunscreen composition includes separate oily and aqueous phases that provide an oil-in-water emulsion.

[0018] The inventors have overcome the challenges encountered in the art and propose a stable fluid emulsion sunscreen formulation that provides an in vivo SPF of at least 40 and, in some embodiments, at least 50 without whitening on the skin, including dark skin, and that provides good spreadability and a textured aesthetic. The inventive composition is formulated as a mineral-based sunscreen in which the solid mineral-based UV filter particles include, for example, zinc oxide and titanium dioxide in the presence of a hydrophobically modified aqueous-phase anionic polymer thickener comprising a C10-30 acrylate / alkyl acrylate crosslinked polymer and an emulsifying system.

[0019] Without being bound by theory, the present invention describes an oil-in-water emulsion, stabilized by the emulsifying system and the combination of materials UV attenuation physicals and the hydrophobically modified aqueous anionic polymer thickener. In the present invention, it is considered that the carboxylic acid residues within the hydrophobically modified aqueous anionic polymer thickener interact with the UV attenuation physical material to form an additional metastable emulsion structure that breaks easily upon application to a keratinous substrate, and which can aid in the spreadability, homogeneity, UV filtering effect and non-whitening appearance on the skin of the mineral sunscreen composition.

[0020] As cited here by way of example, the inventors have demonstrated a unique and unexpected effect obtained using a physical UV attenuating material in the form of one or more metal oxide UV filters, in particular zinc oxide and titanium dioxide, which combine with carboxylic acid fractions of a hydrophobically modified aqueous anionic polymer thickener to provide a structurally stable emulsion that confers a high SPF, even compared to compositions including larger quantities of the metal oxide UV filters, and which does not whiten upon application. The results show a surprising interaction between the one or more metal oxide UV filters and the hydrophobically modified aqueous anionic polymer thickener, which is proven by rheological data.The formulations cited here as examples also show that an emulsifying system comprising at least one high HLB emulsifier having an HLB greater than 13 and at least one low HLB emulsifier having an HLB less than 6, combined with one or more metal oxide UV filters and the hydrophobically modified aqueous-phase anionic polymer thickener, provides a long-life emulsion.

[0021] In various embodiments, the mineral sunscreen compositions are supplied as an oil-in-water emulsion, wherein the discrete phases, which include the aqueous / water-soluble components of the aqueous phase and the non-aqueous / water-insoluble components of the oily phase, excluding physical UV attenuating materials and any powder, are each present in the mineral sunscreen composition at a weight ratio of aqueous to non-aqueous in a range of about 1:1 to about 4:1. Definitions

[0022] A UV-absorbing system essentially containing at least one "UV attenuating physical material," as used herein, means that the compositions according to the disclosure contain less than 3% of UV filters other than the UV attenuating physical material(s), in particular less than 3% of organic UV filters, which means that within this definition, as subcategories, are compositions containing less than 2% of other UV filters that the UV attenuation physical material(s), in particular less than 2% of organic UV filters and less than 1% of UV filters other than the UV attenuation physical material(s), in particular less than 1% of organic UV filters, as well as those "free of UV filters other than the UV attenuation physical material", "substantially free of UV filters other than the UV attenuation physical material" and "devoid of UV filters other than the UV attenuation physical material" as defined herein.

[0023] “Antioxidant” or “SPF-boosting antioxidant” means a material that demonstrates antioxidant properties and, as used according to the disclosure, increases the UV absorption of the mineral UV-protective material when the two are blended in the mineral sunscreen composition by refracting UV radiation, thereby increasing the effective path length of UV radiation through the mineral sunscreen composition. An antioxidant, which is not a UV filter as defined here, is therefore a compound present in an amount that increases the UV efficacy of a composition containing UV filters compared to the UV efficacy of the same composition containing UV filters but not containing the antioxidant. The antioxidant is effective in increasing UV efficacy as measured by at least one of the following: SPF, UVA / UVF ratio, critical wavelength, UVA-I / UV ratio, and / or UVA / SPF ratio.

[0024] “UVA protection factor” refers to an index characterizing the UVA protection provided by a composition. For example, the UVA protection factor (UPPF) can be measured in vivo according to the "PPD" (Persistent Pigment Darkening) method of the ISO-24442:2022 protocol, measuring the skin color observed 2 to 4 hours after UVA exposure. Similarly, it can be determined according to FDA protocols, as described in 21 CFR Part 352 Subpart D § 352.72, as discussed above in relation to SPF.

[0025] The "Sun Protection Factor" or "SPF" (Sun Protection Factor) measures the level of protection against erythema provided by a composition. "SPF" is a term known in the art of sunscreens and is defined, for example, in "A new substrate to measure sunscreen protection factors throughout the ultraviolet spectrum," J. Soc. Cosmet. Chem., 40, 127-133 (May / June 1989). "SPF" designates and refers to a value expressed mathematically as the ratio of the irradiation time required to reach the erythematous threshold with the UV-blocking agent to the time required to reach the erythematous threshold without the UV-blocking agent. The SPF generally provides information on the skin's resistance to ultraviolet B (UVB) radiation from the sun. Thus, the SPF value corresponds to the ratio of the minimum erythematous dose (MED) measured on skin covered with the composition and The MED measured on bare skin. The SPF rating system was developed to guide consumers in choosing sunscreens. All SPF and UV-A ratings are provided based on in vivo values ​​unless otherwise stated.

[0026] The evaluation of the SPF (Sun Protection Factor) can be carried out, for example, in vitro with a spectrophotometer from Labsphere (North Sutton, NH, USA). In such an evaluation, the plate is the material onto which the composition under test is applied. For such an evaluation, polymethyl methacrylate (PMMA) plates can be used. An example of an acceptable protocol is currently undergoing ISO accreditation under the name ISO Committee Draft 23675.

[0027] The SPF evaluation can also be performed in vivo in accordance with ISO 24444:2019 protocol "Cosmetics-Sun protection test methods-In-vivo determination of the SPF." It can also be determined in accordance with FDA protocols, as described in the document "Labeling and Effectiveness Testing; Sunscreen Drug Products for Over-the-Counter Human Use" published in the US Federal Register on 07 / 05 / 2011 (https: / / www.federalregister.gov / d / 2011-14766); 21 CFR Part 352 Subpart D § 352.72, updated and revised by the 2011 publication in the Federal Register.

[0028] All SPF and UV-A indices are provided on the basis of the in vitro value, unless otherwise stated.

[0029] The "critical wavelength" is an absorption spectrum of a sunscreen composition characterized by an index, namely a wavelength, where the integral of the spectral absorbance curve has reached 90% of the integral from 290 nm to 400 nm. The critical wavelength is used to determine the extent of UV protection.

[0030] The terms "hydrophilic-lipophilic balance" or "HLB" denote an empirical expression of the relationship between the hydrophilic and hydrophobic groups of an emulsifier. This term is well known to those skilled in the art. See, for example, "T / ze HLB System. A time-saving guide to Emulsifier Selection" (Pub.: ICI Americas Inc., 1984) and US2006 / 0217283 at paragraph

[0053] . "High HLB" for an emulsifying emulsifier in an oil-in-water (O / W) emulsion of the invention means an HLB equal to or greater than about 9. "Low HLB" for an emulsifying emulsifier for an oil-in-water (O / W) emulsion of the invention means an HLB less than or equal to about 6.The HLB system is particularly useful for preparing O / W and water-in-oil ("W / O") emulsions, in which it is usually understood that W / O emulsions often use low HLB emulsifiers, having an HLB value less than or equal to 6, and W / O emulsifiers often use high HLB emulsifiers, having an HLB value equal to or greater than 9. The total HLB of the emulsifiers can be calculated by taking the weight percentage of each emulsifier in the emulsifying mixture and multiplying the weight percentage by the HLB to obtain a contribution of . Each individual emulsifier is assigned a specific HLB. The individual contributions are then added together to obtain the total HLB of the emulsifier mixture. HLB values ​​for individual emulsifiers can be found in well-known literature or can be provided by an emulsifier supplier.

[0031] “Stable” means that the emulsion can be formed (i.e., its formation does not fail upon combination of ingredients), and remains fluid / liquid without phase separation that cannot be restored by stirring, such stability being demonstrated over the stability monitoring period without appreciable change in color and / or odor, and the water-soluble active ingredients remain solubilized in the aqueous phase without crystallization or precipitation out of the emulsion, and the mineral oxide material(s) remain associated within the emulsion. In this application, the term "room temperature" means a temperature of approximately 25 °C.

[0032] “Passive” as used in relation to the description of a physical material UV attenuation here refers to a material that has been treated in such a way that the potential for the release of ionic species when in contact with water is reduced compared to the same non-passivated material.

[0033] “Primary particle” as used in relation to the description of the material UV attenuation physics here refers to inorganic or organic particles (structures) that can be held together by molecular or atomic bonding to form a UV attenuation physical material.

[0034] “Primary particle size” means the size of a non-aggregated primary particle in a physical UV attenuation material. UV-absorbing system

[0035] The mineral sunscreen composition according to the disclosure includes at least one inorganic or mineral-based UV filter in a UV-absorbing system. According to this disclosure, the "UV attenuating physical material" refers to solid inorganic ingredients that absorb incoming ultraviolet (UV) light and may optionally scatter incoming ultraviolet (UV) light, when present in the compositions disclosed herein. The UV attenuating physical material, in some embodiments, comprises one or more metal oxides such as, for example, oxides of titanium, chromium, zinc, tin, alumina, cerium, and / or iron.Specific examples of suitable metal oxide(s) include, but are not limited to, at least one metal oxide selected from the group consisting of titanium dioxide, zinc oxide, iron oxide, chromium oxide, tin oxide, alumina, cerium oxide, and mixtures thereof.

[0036] The UV attenuating physical material may be subjected to a surface treatment agent to improve the sensoriality, performance and / or compatibility of the compositions disclosed herein. Suitable surface treatment agents may include hydrophobic or hydrophilic surface treatment agents such as, for example, those described in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64, including, but not limited to, specific examples such as amino acids, beeswax, fatty acids, fatty acid salts, fatty alcohols, anionic surfactants, lecithin, lecithin derivatives, metal alkoxides, polyethylene, silicones, proteins, alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina and / or glycerol.

[0037] In some embodiments, as exemplified herein, and in some preferred embodiments, the UV attenuation physical material comprises one or more of zinc oxide and / or titanium dioxide.

[0038] In some embodiments, the physical UV attenuation material is not passivated.

[0039] In some embodiments, the physical UV attenuation material can be passivated.

[0040] In some embodiments, the UV attenuation physical material comprising one or more of zinc oxide or titanium dioxide may be passivated.

[0041] As described herein, the UV-absorbing system may be devoid of organic UV filters and may, in some embodiments, include organic UV filters in an amount not exceeding 3% by weight of the composition.

[0042] In some embodiments, the mineral sunscreen composition may include organic UV filters and may further include one or more SPF-boosting antioxidants.

[0043] Examples of suitable UV filters include, but are not limited to, UV filters that are active in the UV-A and / or UV-B regions, that may be water-soluble, fat-soluble, or insoluble in commonly used cosmetic solvents, and may be inorganic or organic. UV-A filters include groups of compounds that absorb light primarily in the wavelength range of 400 nm to 320 nm (UV-A), and UV-B filters include groups of compounds that absorb light primarily in the wavelength range of 400 nm to 320 nm and 320 nm to 280 nm (UV-B). According to one embodiment of the disclosure, UV-A and UV-B may be two separate UV filters, or they may be a single UV filter with both UV-A and UV-B sun protection factors.

[0044] In some embodiments, the UV-absorbing system includes a combination of physical UV-attenuating materials.

[0045] In some embodiments, the UV-absorbing system includes zinc oxide.

[0046] In some embodiments, the mineral sunscreen compositions include a mixture of at least two physical UV attenuating materials selected from zinc oxide and titanium dioxide.

[0047] In some embodiments as exemplified herein, the mineral sunscreen composition includes zinc oxide (about 10 to 17.5%) and titanium dioxide (about 1.5 to 6.5%), all quantities being by weight, relative to the weight of the composition.

[0048] In some embodiments as exemplified herein, the mineral sunscreen composition includes zinc oxide (about 15%) and titanium dioxide (about 2.7%), all quantities being by weight, relative to the weight of the composition.

[0049] In some embodiments as exemplified herein, the mineral sunscreen composition includes zinc oxide (about 12.4%) and titanium dioxide (about 4.1%), all quantities being by weight, relative to the weight of the composition.

[0050] In some embodiments as exemplified herein, the mineral sunscreen composition includes zinc oxide (about 10.2%) and titanium dioxide (about 1.8%), all quantities being by weight, relative to the weight of the composition.

[0051] In some embodiments as exemplified herein, the mineral sunscreen composition includes zinc oxide (about 13%) and titanium dioxide (0%), all quantities being by weight, relative to the weight of the composition.

[0052] In certain embodiments such as exemplified herein, one or both of zinc oxide and titanium dioxide comprise a coating which comprises one or more of triethoxycaprylylsilane and triethylhexanoin.

[0053] In some embodiments such as exemplified herein, the coatings comprise triethoxycaprylylsilane (about 0.5 to 3%), all quantities by weight, relative to the weight of the composition.

[0054] In some embodiments such as exemplified herein, the coatings comprise triethoxycaprylylsilane (about 0.5 to 3%) and triethylhexanoin (about 0.5 to 3.0%), all in weight amounts, relative to the weight of the composition.

[0055] In certain particular embodiments, the amount of a physical UV attenuating material present in the mineral sunscreen composition is at less about 5% by weight and, in some embodiments, at least about 10% by weight and, in some embodiments, at least about 12% by weight and, in some embodiments, at least about 14% by weight and, in some embodiments, at least about 15% by weight, with the upper end of the range of at least one UV attenuating physical material present, in some embodiments, being about 40% by weight (for example, from about 5% to about 40%, from about 10% to about 40%, from about 12% to about 40%, etc.) and, in some embodiments, about 30% by weight (for example, from about 5% to about %, from about 10% to about %, from about 12% to about 30%, etc.) and, in some embodiments, about 25% by weight (for example, from about 5% to about 25%, from about 10% to about 25%, from about 12% to about 25%, etc.) and, in certain embodiments, of about 20% by weight (for example, from about 5% to about 20%, from about 10% to about 20%, from about 12% to about 20%, etc.), all weights being based on the total weight of the composition.

[0056] According to preferred embodiments, the embodiments of the mineral sunscreen composition contain a UV-absorbing system containing essentially physical UV-attenuating materials as defined in this document.

[0057] Thus, any UV attenuating physical material or combination of materials may be present, by weight, on the basis of the total weight of the mineral sunscreen composition, from about 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 to about 40%, including increments and ranges contained therein, on the basis of the total weight of the mineral sunscreen composition.

[0058] Embodiments of physical materials for attenuating ultraviolet radiation

[0059] According to a first embodiment, the physical material for attenuating ultraviolet radiation UV sunscreens contain at least zinc oxide. Zinc oxide may be present in any form (e.g., as wurtzite or zinc blende) in the composition of mineral sunscreens. Furthermore, zinc oxide may be treated (coated) or untreated.

[0060] According to a second embodiment, the UV attenuation physical material comprises at least titanium dioxide. The titanium dioxide may be present in any form. Furthermore, the TiO2 may be treated (coated) or untreated.

[0061] According to a third embodiment, the UV attenuation physical material comprises at least zinc oxide and titanium dioxide, wherein either or both may be present in any form and may be treated (coated) or untreated. In a particular embodiment, only one of the physical UV attenuating materials is a coated oxide.

[0062] According to a first embodiment, the UV attenuation physical material comprises titanium dioxide. The titanium dioxide may be present in any form. Furthermore, the TiO2 may be treated (coated) or untreated.

[0063] Preferably, the UV attenuation physical material comprising one or more zinc oxides.

[0064] In some embodiments, the zinc oxide can be passivated.

[0065] In certain embodiments, the physical UV attenuation material includes one or more titanium dioxides, and, in some embodiments, the zinc oxide may be passivated.

[0066] Preferably, the average primary particle size of the UV attenuating physical material is from 1 nm to 500 nm and, in some embodiments, from 5 nm to 250 nm and, in some embodiments, from 10 nm to 100 nm, and, in some embodiments, from 20 nm to 50 nm, including all intermediate ranges and sub-ranges such as, for example, 25 nm to 40 nm, 10 nm to 75 nm and 15 nm to 150 nm.

[0067] In some embodiments, the coated pigments are more particularly titanium oxides that have been coated:

[0068] - of hydrated silica, such as Tayca's MT-100WP product,

[0069] - of silica and iron oxide, like the Sunveil F product from Ikeda;

[0070] - of silica and alumina, such as the MT-500SA and MT-100SA products from Tayca and Croda's Tioveil™ AQ-N,

[0071] - of alumina, such as Ishihara's TTO-55 (A) product,

[0072] - of alumina and aluminum stearate, such as the MT-100TV, MT-100Zet products Tayca's MT-01, Croda's Solaveil™ CT 100, and Merck's Eusolex T-AVO,

[0073] - of silica, alumina and alginic acid, such as Tayca's MT-lOOAQ product,

[0074] - of alumina and aluminum laurate,

[0075] - of iron oxide and iron stearate,

[0076] - of zinc oxide and zinc stearate,

[0077] - of silica and alumina and treated with a silicone, like the MTY-500SAS products or Microtitanium Dioxide MT-100SAS from Tayca,

[0078] - of silica, alumina and aluminum stearate and treated with a silicone,

[0079] - of silica and treated with a silicone,

[0080] - of silica and treated with a silicone, such as Ishihara's TTO-55(S) product;

[0081] - of triethanolamine,

[0082] - of stearic acid, such as Ishihara's TTO-55 (C) product,

[0083] - of sodium hexametaphosphate,

[0084] - of TiO2 treated with octyltrimethylsilane,

[0085] - of TiO2 treated with a polydimethylsiloxane,

[0086] - of TiO2 anatase / rutile treated with a polydimethylhydrogenosiloxane,

[0087] - TiO2 coated with triethylhexanoin, aluminium stearate and alumina sold under the trade name SolaveilTM CT-200 by Croda,

[0088] - TiO2 coated with aluminum stearate, alumina and silicone, sold under the name commercial SolaveilTM CT-12W by Croda,

[0089] - of TiO2 coated with lauroyl lysine,

[0090] - of TiO2 coated with C9-C15 fluoroalcohol phosphate and hydroxide aluminum.

[0091] In some embodiments, the disclosure proposes a UV absorption system containing essentially at least one physical ultraviolet (UV) attenuation material.

[0092] In certain embodiments, the UV-absorbing system has one or more of the following properties:

[0093] the physical ultraviolet (UV) attenuation material comprises one or more metal oxides such as, for example, titanium, chromium, zinc, tin, alumina, cerium and / or iron oxides;

[0094] the metal oxide or oxide(s) includes at least one metal oxide selected from the group consisting of titanium dioxide, zinc oxide, iron oxide, chromium oxide, tin oxide, alumina, cerium oxide, and mixtures thereof.

[0095] the UV attenuating physical material is subjected to a surface treatment agent to improve the sensory properties, performance and / or compatibility of the compositions disclosed herein, comprising at least one of the following: amino acids, beeswax, fatty acids, fatty acid salts, fatty alcohols, anionic surfactants, lecithin compounds, metal alkoxides, polyethylene, silicones, proteins, alkanolamines, silicon oxides, metal oxides other than at least one ultraviolet (UV) attenuating physical material, sodium hexametaphosphate, alumina, glycerol, and mixtures thereof;

[0096] The UV attenuation physical material comprises one or more of zinc oxide and / or titanium dioxide.

[0097] Preferably, the UV attenuation physical material comprising one or more of zinc oxide or titanium dioxide is not passivated;

[0098] Preferably, the UV attenuation physical material comprising one or more of zinc oxide or titanium dioxide is passivated.

[0099] the UV attenuation physical material comprises titanium dioxide, which may be treated (coated) or untreated;

[0100] the UV attenuation physical material comprises zinc oxide, which may be treated (coated) or untreated;

[0101] the UV attenuation physical material comprises one or more treated (coated) zinc oxides, and the zinc oxide is not passivated;

[0102] the UV attenuation physical material comprises one or more treated (coated) zinc oxides, and the zinc oxide is passivated;

[0103] The average primary particle size of the physical ultraviolet (UV) attenuating material is from 1 nm to 500 nm, in some embodiments from 5 nm to 250 nm, in some embodiments from 10 nm to 100 nm, and in some embodiments from 20 nm to 50 nm, including all intermediate ranges and sub-ranges such as, for example, 25 nm to 40 nm, 10 nm to 75 nm and 15 nm to 150 nm.

[0104] The coatings may comprise one or more of the following: hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone, hydrodimethicone, triethoxycaprylylsilane, and mixtures thereof; and / or

[0105] the coatings may include hydrated silica and / or hydrogen dimethicone.

[0106] In some embodiments such as exemplified herein, the coatings comprise triethoxycaprylylsilane (about 0.5 to 3%), all amounts by weight, relative to the weight of the composition.

[0107] In some embodiments such as exemplified herein, the coatings comprise triethoxycaprylylsilane (about 0.5 to 3%) and triethylhexanoin (about 0.5 to 3.0%), all in weight amounts, relative to the weight of the composition.

[0108] In certain embodiments such as exemplified herein, the coatings which comprise triethoxycaprylylsilane (about 1%) and triethylhexanoin (about 1.6 to 2.4%), all amounts by weight, relative to the weight of the composition.

[0109] Physical materials for attenuating ultraviolet (UV) radiation

[0110] The mineral sunscreen composition includes one or more physical UV attenuating materials.

[0111] The UV attenuating physical material used for this disclosure may be active in the UV-A and / or UV-B region. The UV attenuating physical material may be hydrophilic and / or lipophilic. In some embodiments, the UV attenuating physical material is insoluble in solvents, such as water and ethanol, commonly used in cosmetics.

[0112] In certain embodiments, it is desirable that the physical UV attenuating material be in the form of a thin particle whose diameter The average (primary) particle size is from 1 nm to 50 nm and, in some embodiments, from 5 nm to 40 nm and, in some embodiments, from 10 nm to 30 nm. The average (primary) particle size or average (primary) particle diameter here is an arithmetic mean diameter. Preferably, the average primary particle size of the UV attenuation physical material is from 1 nm to 500 nm and, in some embodiments, from 5 nm to 250 nm and, in some embodiments, from 10 nm to 100 nm, and, in some embodiments, from 15 nm to 35 nm, including all intermediate ranges and sub-ranges such as, for example, 25 nm to 40 nm, 10 nm to 75 nm, and 15 nm to 150 nm.

[0113] The UV attenuating physical material may be selected from the group consisting of silicon carbide, metal oxides, which may or may not be coated, and mixtures thereof. In some embodiments, the UV attenuating physical materials are selected from pigments (average size of primary particles: generally from 1 nm to 50 nm and, in some embodiments, from 10 nm to 35 nm) formed from metal oxides such as, for example, pigments formed from titanium dioxide (amorphous or crystalline in the form of rutile and / or anatase), iron oxide, zinc oxide, zirconium oxide, or cerium oxide, all of which are well-known UV-blocking photoprotective agents. In some embodiments, the UV attenuating physical materials are selected from titanium dioxide, zinc oxide, and, in some embodiments, titanium dioxide.

[0114] The UV attenuating physical material may or may not be coated. The UV attenuating physical material may have one or more coatings. The coating may comprise one or more compounds selected from the group consisting of alumina, silica, aluminum hydroxide, silicones, silanes, fatty acids or their salts (such as sodium, potassium, zinc, iron, or aluminum salts), fatty alcohols, lecithin, amino acids, polysaccharides, proteins, alkanolamines, waxes such as beeswax, (meth)acrylic polymers, organic UV filters, and (per)fluorinated compounds. In some embodiments, it is preferable for the coating to include one or more organic UV filters.

[0115] The UV attenuating physical material consisting of metal oxides may, prior to its treatment with silicones, have been treated with other surfacing agents, in particular with cerium oxide, alumina, silica, aluminum compounds, silicon compounds, or mixtures thereof. The coated UV attenuating physical material may have been prepared by subjecting the UV attenuating physical material to one or more surface treatments of a chemical, electronic, mechanochemical, and / or mechanical nature with any of the compounds described above, as well as polyethylenes, metal alkoxides (titanium or aluminum alkoxides), metal oxides, and hexametaphosphate. of sodium, and those presented, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64.

[0116] Appropriate examples of uncoated zinc oxide include, for example, zinc oxide marketed under the name "Z-COTE" by BASF, zinc oxide marketed under the name "NanoArc Zinc Oxide" by Nanophase Technologies, zinc oxide marketed under the name "MZ-500", "MZ-300", "MZ-200" or "MZ-150" by TAYCA.

[0117] Treated (coated) zinc oxide compounds are compounds that have undergone one or more surface treatments of a chemical, electronic, mechanochemical and / or mechanical nature with compounds such 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 aluminium salts of fatty acids, metal alkoxides (titanium or aluminium), polyethylene, silicones, hydrated silica, proteins (collagen, elastin), alkanolamines, silicon oxides, triethoxycaprylylsilane, metal oxides or sodium hexametaphosphate.

[0118] Examples of suitable coated zinc oxide include, but are not limited to, polymethylhydrogenosiloxane-coated zinc oxide; zinc oxide dispersed in Cl2-15 alkyl benzoate (INCI: Zinc Oxide (and) Cl2-15 Alkyl Benzoate (and) Polyhydroxystearic Acid (and) Isostearic Acid), marketed by Croda under the trade name Solaveil CZ-100; zinc oxide dispersions in C9-12 alkane with a dispersing agent, marketed under the trade name "DAITOPERSION Zn-60VA" by Daito Kasei; silicone-grafted acrylic polymer-coated ZnO dispersed in cyclodimethylsiloxane, marketed under the name "SPD-Z5" by Shin-Etsu; ZnO coated with hydrated silica, marketed by TAYCA under the name "MZ-500HP"; ZnO coated with hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone and hydrogenodimethicone (H-Me-Si), marketed by TAYCA under the name MZ-510 HPSX;stearic acid-coated or isostearic acid-coated ZnO, such as those marketed by TAYCA under the name "MZ-505T", "MZY-505EX" or "MZY-304EX"; silicone oil-coated ZnO, such as those marketed by TAYCA under the name "MZX-510HPS", "MZY-505S", "MZY-510M3S", "MZ-505M", "MZY-303S", "MZY-303M", "MZY-203S", "MZY-210M3S" or "MZY-153S"; triethoxycaprylylsilane-coated zinc, such as those marketed by BASF under the name Z-COTE HP1, or by TAYCA under the names "MZX-508OTS", "MZY-203OTS" or "MZX-304OTS" or by DSM under the name PARSOL ZX; for example: zinc marketed under the brand name "Zinc Oxide CS-5" by Toshiba (polymethylhydrosiloxane-coated zinc); of; ZnO marketed under the brand name "Nanogard Zinc Oxide FN" by Nanophase Technologies (as a 40% dispersion in Finsolv TN, C12-C15 alkyl benzoate); ZnO marketed under the brand name "Daitopersion Zn-30" and "Daitopersion Zn-50" by Daito (dispersions in polydimethylsiloxane / oxyethylenated cyclopolymethylsiloxane comprising 30% or 50% of zinc nanooxides coated with silica and polymethylhydrosiloxane); ZnO marketed under the brand name "NFD Ultrafine ZnO" by Daikin (ZnO coated with perfluoroalkyl phosphate and a perfluoroalkylethyl copolymer in dispersion in cyclopentasiloxane); ZnO marketed under the brand name "SPD-Z1" by Shin-Etsu (ZnO coated with a silicone-grafted acrylic polymer dispersed in cyclodimethylsiloxane); ZnO marketed under the brand name "Escalol Z100" by ISP (Alumina-treated ZnO dispersed in a copolymer mixture of ethylhexyl methoxycinnamate / PVP-hexadecene methicone;ZnO marketed under the brand name "Fuji ZnO-SMS-10" by Fuji Pigment (ZnO coated with silica and polymethylsilsesquioxane); and ZnO marketed under the brand name "Nanox Gel TN" by Elementis (ZnO dispersed at 55% in C12-C15 alkyl benzoate with hydroxystearic acid polycondensate); ZnO marketed under the brand name Finex by SAKAI such as FINEX-50LP, FINEX-50S-LP2 and FINEX-30S-LPT (ZnO coated with hydrogenodimethicone); FINEX-33W (ZnO coated with hydrated silica), FINEX-52W-LP2 and FINEX-33W-LP2 (ZnO coated with hydrogenodimethicone and hydrated silica), FINEX-50-OTS and FINEX-30-OTS (ZnO coated with triethoxycaprylysilane). Preferred coatings may include one or more of the following: hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone and / or hydrogenodimethicone, triethoxycaprylysilane, or a combination thereof.

[0119] According to preferred embodiments of this disclosure, zinc oxide may be in the form of wafers, and may be coated or uncoated. Appropriate examples of such forms are sold by Croda under the name Solaveil (MicNo), such as Solaveil MXP3, MZP7, MZP8, MZ3-100, MZ3-300, and MZ7-100. In some embodiments, the zinc oxide wafers useful according to this disclosure (1) have a median specific area of ​​more than 25 square meters per gram and, in some embodiments, greater than 30 square meters per gram, and / or (2) are transparent (i.e., transmission >30% at 600 nm). Appropriate examples of such wafer forms may also be found in US Patent 11,608,275.

[0120] One can also mention TiO2 pigments doped with at least one transition metal such as iron, zinc, or manganese, and more particularly manganese. In some embodiments, said doped pigments are in the form of an oily dispersion. The oil present in the oily dispersion is, in some embodiments, selected from triglycerides, including those of capric / caprylic acids. The oily dispersion of titanium dioxide particles may also include one or more dispersants, for example, a sorbitan ester, such as sorbitan isostearate, or a polyoxyalkylated fatty acid ester of glycerol, such as tri-PPG-3 myristylether citrate and polyglyceryl-3 polyricinoleate. In some embodiments, the oily dispersion of titanium dioxide particles includes at least one dispersant selected from polyoxyalkylated fatty acid esters of glycerol.One example is the oily dispersion of manganese-doped TiO2 particles in capric / caprylic acid triglyceride in the presence of tri-PPG-3 myristyl ether citrate and polyglyceryl-3 polyricinoleate and sorbitan isostearate, having the INCI name: titanium dioxide (and) TRLPPG-3 myristyl ether citrate (and) polyglyceryl-3 ricinoleate (and) sorbitan isostearate, for example the product sold under the trade name Optisol™ OTP-1 by Croda.

[0121] Uncoated titanium oxide pigments are for example sold by Tayca under the trade names MT-500B or MT-600B, or by Evonik under the name Degussa P 25.

[0122] More generally, the coated UV attenuating physical material can be coated with titanium oxides: with silica, such as Ikeda's "Sun veil" and Sunjin Chemical's "Sunsil TIN 50"; with silica and iron oxide, such as Ikeda's "Sunveil F"; with silica and alumina, such as Tayca's "Microtitanium Dioxide MT 500 SA", Tioxide's "Tioveil", and Rhodia's "Mirasun TiW 60"; with alumina, such as Ishihara's "Tipaque TTO-55 (B)" and "Tipaque TTO-55 (A)", and Kemira's "UV 14 / 4"; with alumina and with aluminum stearate, such as the product "Microtitanium Dioxide MT 100 T, MT 100 TX, MT 100 Z or MT-01" from Tayca, the products "Solaveil CT-10 W" and "Solaveil CT 100" from Uniqema, and the product "Eusolex T-AVO" from Merck; with alumina and with aluminum laurate, such as the product "Microtitanium Dioxide MT 100 S" from Tayca;with iron oxide and iron stearate, such as Tayca's "Microtitanium Dioxide MT 100 F"; with zinc oxide and zinc stearate, such as Tayca's "BR351"; with silica and alumina and treated with silicone, such as Tayca's "Microtitanium Dioxide MT 600 SAS", "Microtitanium Dioxide MT 500 SAS", and "Microtitanium Dioxide MT 100 SAS"; with silica, alumina, and aluminum stearate and treated with silicone, such as Titan Kogyo's "STT-30-DS"; with silica and treated with silicone, such as Kemira's "UV-Titan X 195"; with alumina and treated with silicone; such as Ishihara's "Tipaque TTO-55 (S)" or Kemira's "UV Titan M 262" products; with triethanolamine, such as Titan Kogyo's "STT-65-S" product; with stearic acid, such as Ishihara's "Tipaque TTO-55 (C)" product; or with sodium hexametaphosphate, such as Tayca's "Microtitanium Dioxide MT 150 W" product.Other titanium oxide pigments treated with silicone are, in some embodiments, TiO2 treated with octyltrimethylsilane and for which the average size of individual particles is 25 and 40 nm, such as that marketed under the brand name "T 805" by Degussa Silices, TiO2 treated with a polydimethylsiloxane and for which the average size of individual particles is 21 nm, such as that marketed under the brand name "70250 Cardre UF TiO2Si3" by Cardre, and TiO2 anatase / rutile treated with a polydimethylhydrosiloxane and for which the average size of individual particles is 25 nm, such as that marketed under the brand name "Microtitanium Dioxide USP carbonate Hydrophobie" by Color Techniques.

[0123] And in certain embodiments, the following coated TiO2 can be used as a coated UV attenuation physical material: Stearic acid (and) Aluminium hydroxide (and) TiO2, such as the product "MT-100 TV" from Tayca, with a mean primary particle diameter of 15 nm; Dimethicone (and) Stearic acid (and) Aluminium hydroxide (and) TiO2, such as the product "S A-TTO-S4" from Miyoshi Kasei, with a mean primary particle diameter of 15 nm; Silica (and) TiO2, such as the product "MT-100 WP" from Tayca, with a mean primary particle diameter of 15 nm; Dimethicone (and) Silica (and) Aluminium Hydroxide (and) TiO2, such as the product "MT-Y02" and "MT-Y-110 M3S" from Tayca, with a mean primary particle diameter of 10 nm; Dimethicone (and) Aluminium Hydroxide (and) TiO2, such as the product "SA-TTO-S3" from Miyoshi Kasei, with a mean primary particle diameter of 15 nm;Dimethicone (and) Alumina (and) TiO2, such as the product "UV TITAN Ml 70" from Sachtleben, with an average primary particle diameter of 15 nm; and Silica (and) Aluminum Hydroxide (and) Alginic Acid (and) TiO2, such as the product "MT-100 AQ" from Tayca, with an average primary particle diameter of 15 nm. In terms of UV filtering capacity, TiO2 coated with one or more organic UV filters is preferable. For example, Avobenzone (and) Stearic Acid (and) Aluminum Hydroxide (and) TiO2, such as the product "HXMT-100ZA" from Tayca, with an average primary particle diameter of 15 nm, can be used.

[0124] Uncoated titanium oxide pigments are, for example, marketed by Tayca under the brands "Microtitanium Dioxide MT500B" or "Microtitanium Dioxide MT600B", by Degussa under the brand "P 25", by Wacker under the brand "Transparent Titanium Oxide PW", by Miyoshi Kasei under the brand "UFTR", by Tomen under the brand name "ITS", and by Tioxide under the brand name "Tioveil AQ". Uncoated zinc oxide pigments include, for example: those marketed under the brand name "Z-cote" by Sunsmart; those marketed under the brand name "Nanox" by Elementis; and those marketed under the brand name "Nanogard WCD 2025" by Nanophase Technologies. Coated zinc oxide pigments include, for example: those marketed under the brand name "Zinc Oxide CS-5" by Toshiba (ZnO coated with polymethylhydrosiloxane); those marketed under the brand name "Nanogard Zinc Oxide FN" by Nanophase Technologies (as a 40% dispersion in Finsolv TN, a C12-C15 alkyl benzoate); those marketed under the brand name "Daitopersion Zn-30" and "Daitopersion Zn-50" by Daito (dispersions in oxyethylenated polydimethylsiloxane / cyclopopolymethylsiloxane comprising 30% or 50% of zinc nanooxides coated with silica and polymethylhydrosiloxane);those marketed under the brand name "NFD Ultrafine ZnO" by Daikin (ZnO coated with perfluoroalkyl phosphate and a perfluoroalkylethyl copolymer dispersed in cyclopentasiloxane); those marketed under the brand name "SPD-Z1" by Shin-Etsu (ZnO coated with an acrylic polymer grafted with silicone dispersed in cyclodimethylsiloxane); Those marketed under the brand name "Escalol Z100" by ISP (alumina-treated ZnO dispersed in an ethylhexyl methoxycinnamate / PVP-hexadecene / methicone copolymer mixture); those marketed under the brand name "Fuji ZnO-SMS-10" by Fuji Pigment (ZnO coated with silica and polymethylsilsesquioxane); and those marketed under the brand name "Nanox Gel TN" by Elementis (ZnO dispersed at 55% in a C12-C15 alkyl benzoate with hydroxystearic acid polycondensate). Uncoated cerium oxide pigments are marketed, for example, under the brand name "Colloidal Cerium Oxide" by Rhone-Poulenc.

[0125] Uncoated iron oxide pigments are, for example, marketed by Arnaud under the brands "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 brand "TY-220". Coated iron oxide pigments are, for example, marketed by Arnaud under the brands "Nanogard WCD 2008 (FE 45B FN)", "Nanogard WCD 2009 (FE 45B 556)", "Nanogard FE 45 BL 345" and "Nanogard FE 45 BL" or by BASF under the brand "Transparent Iron Oxide".

[0126] Other examples include mixtures of metal oxides, in particular titanium dioxide and cerium dioxide, including an equal weight mixture of silica-coated titanium dioxide and silica-coated cerium dioxide marketed by Ikeda under the brand name "Sunveil A", as well as a mixture of titanium dioxide and zinc dioxide coated with alumina, silica and silicone, such as the product "M 261" marketed by Kemira, or coated with alumina, silica and glycerol, such as the product "M 211" marketed by Kemira. Coated UV-attenuating physical materials are desirable because the UV filtering effects of these physical materials can be enhanced. Furthermore, the coating(s) can help to disperse the UV filters evenly or homogeneously within the mineral sunscreen composition as disclosed herein. Other coated pigments

[0127] Suitable examples of other coated pigments, including those having amphiphilic properties, to be selected from:

[0128] titanium oxides coated with cetyl phosphate and silica, such as Merck's "EusolexT-EASY" product;

[0129] titanium oxides coated with polyglyceryl-10 oleate and stearic acid, such as Tayca's "MTY-200STW";

[0130] zinc oxides coated with polyglyceryl-10 oleate and isostearic acid, such as Tayca's "MZY-505EXW";

[0131] titanium oxides coated with polysorbate 80 and isostearic acid, such as Tayca's "MT-10EXW"; and

[0132] zinc oxides coated with polysorbate 80 and isostearic acid, such as Tayca's "MZY-304EXW". Organic sunscreen agents

[0133] If present in the inventive composition, one or more organic UV agents may be selected. Organic UV filters may be hydrophilic or lipophilic. “Hydrophilic organic UV filter” means a water-soluble organic UV filter or a water-dispersible organic UV filter (in colloidal form). “Lipophilic organic UV filter” means a UV filter that is dissolved or dispersed in colloidal form in a liquid oil phase.

[0134] Suitable organic UV filters may be selected from the following non-exhaustive list of compounds: cinnamic compounds; anthranilate compounds; para-aminobenzoic acid compounds; salicylic compounds; dibenzoylmethane compounds; camphor compounds; benzophenone compounds; [3,[3-diphenylacrylate] compounds; triazine compounds such as bis-ethylhexyloxyphenol methoxyphenyl triazine; benzotriazole compounds; benzalmalonate compounds, including those cited in US patent 5,624,663; benzimidazole derivatives; imidazoline compounds; bis-benzoazolyl compounds as described in patents EP669323 and US 2,463,264; Methylene bis(hydroxyphenylbenzotriazole) compounds as described in US patent applications 5,237,071, US 5,166,355, GB2303549, DE197 26,184 and EP893119; benzoxazole compounds as described in patent applications EP0832642, EP1027883, EP1300137 and DE10162844; polymer filters and silicone filters such as those described in particular in application WO 93 / 04665; alkylstyrene-derived dimers such as those described in patent application DE19855649; 4,4-diarylbutadiene compounds such as those described in applications EP0967200, DE19746654, DE19755649, EP-A-1008586, EPI 133980 and EP133981, and mixtures thereof. In some examples, lipophilic organic UV filters are selected from salicylic compounds, dibenzoylmethane compounds, benzylidene camphor compounds; benzophenone compounds; triazine compounds; benzotriazole compounds; as well as other categories of compounds identified herein; and mixtures thereof.

[0135] Specific reference may be made to suitable salicylate compounds including Homosalate (homomentyl salicylate), for example marketed under the brand name "Eusolex HMS" by Rona / EM Industries; and ethylhexyl salicylate, for example marketed under the brand name "Neo Heliopan OS" by Symrise; and glycol salicylate. Other examples of salicylate compounds include phenyl salicylate; dipropylene glycol salicylate, for example marketed under the brand name "Dipsal" by Scher; and TEA salicylate, for example marketed under the brand name "Neo Heliopan TS" by Symrise.

[0136] Examples of suitable [3,[3-diphenylacrylate compounds include Octocrylene, for example marketed under the brand name "Uvinul N539" by BASF; and Etocrylene, for example marketed under the brand name "Uvinul N35" by BASF.

[0137] Suitable anthranilic compounds may include methyl anthranilates, marketed for example under the brand name "Neo Heliopan MA" by Symrise.

[0138] Examples of dibenzoylmethane compounds include butyl methoxydibenzoylmethane, for example marketed under the brand name "Parsol 1789" by DSM; and isopropyl dibenzoylmethane.

[0139] Suitable cinnamyl compounds include ethylhexyl methoxycinnamate, marketed for example under the brand name "Parsol MCX" by DSM; isopropyl methoxycinnamate; isopropoxyl methoxycinnamate; isoamyl methoxycinnamate, marketed for example under the brand name "Neo Heliopan E 1000" by Symrise; cinoxate (2-ethoxyethyl-4-methoxycinnamate); DEA methoxycinnamate; diisopropyl methylcinnamate; and glyceryl dimethoxycinnamate ethylhexanoate.

[0140] Examples of camphor compounds include benzylidenecamphor derivatives: 3-benzylidenecamphor, for example marketed under the brand name "Mexoryl SD" by Chimex; 4-methylbenzylidenecamphor, for example marketed under the brand name "Eusolex 6300" by Merck; benzylidenecamphor acid sulfonic acid, for example marketed under the brand name "Mexoryl SL" by Noveal; camphor benzalkonium methosulfate, for example marketed under the brand name "Mexoryl SO" by Noveal; terephthalylidene diamphr sulfonic acid, for example marketed under the brand name "Mexoryl SX" by Noveal; and polyacrylamidomethyl benzylidene camphor, for example marketed under the brand name "Mexoryl SW" by Noveal.

[0141] Suitable benzophenone compounds include benzophenone-1 (2,4-dihydroxybenzophenone), such as that marketed under the brand name "Uvinul 400" by BASF; benzophenone-2 (tetrahydroxybenzophenone), such as that marketed under the brand name "Uvinul D50" by BASF; benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone, such as that marketed under the brand name "Uvinul M40" by BASF; benzophenone-4 (hydroxymethoxybenzophonene sulfonic acid), such as that marketed under the brand name "Uvinul MS40" by BASF; benzophenone-5 (sodium hydroxymethoxybenzophenone sulfonate); benzophenone-6 (dihydroxy dimethoxy benzophenone), such as that marketed under the brand name "Helisorb 11" by Norquay; benzophenone-8, such as that marketed under the brand name "Spectra-Sorb UV-24" by American Cyanamid;benzophenone-9 (disodium dihydroxy dimethoxy benzophenonedisulfonate), such as that marketed under the brand name "Uvinul DS-49" by BASF; and benzophenone-12, and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (such as that marketed under the brand name "UVINUL A+" by BASF).

[0142] Examples of triazine compounds include 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT)), diethylhexyl butamido triazone, such as that marketed under the brand name "Uvasorb HEB" by Sigma 3V; 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine, such as that marketed under the brand name "TINOSORB S" by BASF and ethylhexyl triazone, such as that marketed under the brand name "UVTNUL T150" by BASF.

[0143] Suitable benzotriazole compounds include phenylbenzotriazole derivatives: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, branched and linear, and those described in USP 5240975.

[0144] Suitable benzalmalonate compounds include dineopentyl 4'-methoxybenzalmalonate and polyorganosiloxane comprising benzalmalonate functional groups, such as polysilicone-15, such as that marketed under the brand name "Parsol SLX" by Hoffmann-LaRoche.

[0145] Examples of benzimidazole compounds include, in particular, phenylbenzimidazole derivatives such as phenylbenzimidazole sulfonic acid, such as that marketed, in particular, under the brand name "Eusolex 232" by Merck, and phenyl dibenzimidazole tetrasulfonate disodium, such as that marketed under the brand name "Neo Heliopan AP" by Symrise.

[0146] Suitable imidazoline compounds include ethylhexyl dimethoxybenzylidene propionate dioxoimidazoline.

[0147] Examples of bis-benzoazolyl compounds include the compounds described in EP-669 323 and US patent no. 2 463 264.

[0148] Suitable para-aminobenzoic acid compounds include PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, such as that marketed under the brand name "Escalol 507" by ISP, glyceryl PABA, and PEG-25 PABA, such as that marketed under the brand name "Uvinul P25" by BASF.

[0149] Suitable methylene bis-(hydroxyphenylbenzotriazole) compounds include 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methylphenol], such as that marketed under the brand name "Mixxim BB / 200" by Fairmount Chemical, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol], such as that marketed in micronized aqueous dispersion form under the brand name "Tinosorb M" by BASF or under the brand name "Mixxim BB / 100" by Fairmount Chemical, and derivatives as described in U.S. Patent Nos. 5,237,071 and 5,166,355, GB-2,303,549, DE-197,26184 and EP-893,119, and drometrizole trisiloxane, such as that marketed under the brand name "Silatrizole" by Rhodia Chimie or - "Mexoryl XL" by L'Oréal.

[0150] Examples of benzoxazole compounds include 2,4-bis [5-1 (dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-l,3,5-triazine, such as that marketed under the brand name Uvasorb K2A by Sigma 3V.

[0151] Suitable examples of protective polymers and protective silicones include the silicones described in WO 93 / 04665.

[0152] Suitable α-alkylstyrene derived dimers include the dimers described in DE-19855649.

[0153] Examples of 4,4-diarylbutadiene compounds include l,l-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene. Emulsifying system (emulsifier)

[0154] In various embodiments, the mineral sunscreen composition includes at least one low HLB emulsifier and at least one high HLB emulsifier, wherein at least one emulsifier has a low HLB that is equal to or less than 6 (per example, about 5) and at least one emulsifier has a high HLB that is greater than 8 (e.g., about 15).

[0155] In various embodiments, the mineral sunscreen composition includes two or more emulsifiers and, in such embodiments, at least one emulsifier has a low HLB that is equal to or less than 6 (for example, about 5), and in the range of about 1 to 8, and at least one emulsifier has a high HLB that is greater than 9 (for example, about 13 to 15) and in the range of about 9 to 25. According to such embodiments, at least one emulsifier has an HLB in the range of about 1 to about 8, for example, about 1, 2, 3, 4, 5, or 6, and at least one emulsifier has an HLB in the range of about 9 to about 25, for example, about 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 or 25.

[0156] In some embodiments, the mineral sunscreen composition includes one or more of glyceryl stearate (HLB approximately 3.8), steareth-2 (HLB approximately 5) and ceteth-2 (HLB approximately 5), and one or more of polysorbate 20 (HLB approximately 16.7), steareth-20 (HLB approximately 15) and decyl glucoside (HLB approximately 13-15).

[0157] In some embodiments, the mineral sunscreen composition includes glyceryl stearate (HLB approximately 3.8), steareth-2 (HLB approximately 5), polysorbate 20 (HLB approximately 16.7) and steareth-20 (HLB approximately 15).

[0158] In certain embodiments as exemplified herein, the mineral sunscreen composition includes glyceryl stearate (HLB approximately 3.8; approximately 0.2 to 1.5%), steareth-2 (HLB approximately 5; approximately 0.25 to 1.25%), polysorbate 20 (HLB approximately 16.7; approximately 0.25 to 3.0%) and steareth-20 (HLB approximately 15; approximately 0.5 to 3.0%), all amounts by weight, relative to the weight of the composition.

[0159] In some embodiments as exemplified herein, the mineral sunscreen composition includes glyceryl stearate (about 0.7%), steareth-2 (about 0.6%), polysorbate 20 (about 0.7%) and steareth-20 (about 1%), all amounts by weight, relative to the weight of the composition.

[0160] In some embodiments, each emulsifier is present in the mineral sunscreen composition in an amount ranging from about 0.01% to about 15% by weight relative to the weight of the mineral sunscreen composition. In some embodiments, each emulsifier is present in the mineral sunscreen composition in an amount ranging from about 0.05% to about 3.5%, or from about 0.3% to about 1.5%, or from about 0.5% to about 0.9%, by weight of the mineral sunscreen composition, including intermediate increments and ranges, relative to the total weight of the mineral sunscreen composition.

[0161] In some embodiments, a combination of emulsifiers is present in the mineral sunscreen composition from approximately 1% to approximately 5% by weight, or about 2% to about 4% by weight, or any appropriate combination, sub-combination, range or sub-range of these values ​​by weight, based on the weight of the mineral sunscreen composition.

[0162] Thus, an emulsifier or a combination of emulsifiers is present, by weight, on the basis of the total weight of the mineral sunscreen composition, from about 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 to about 15%, including increments and intermediate ranges, on the basis of the total weight of the mineral sunscreen composition.

[0163] Hydrophobically modified aqueous anionic polymer thickener

[0164] In various embodiments, the mineral sunscreen composition includes at least one hydrophobically modified aqueous anionic polymer thickener comprising carboxylic acid residues.

[0165] In some embodiments, the hydrophobically modified aqueous phase polymer thickener also functions as a polymer emulsifier.

[0166] In some embodiments, the hydrophobically modified aqueous phase anionic polymer thickener comprises a Cl0-30 acrylate / alkyl acrylate crosspolymer which excludes the commercial material Carbopol (R) Ultrez 20 Polymer (R) (INCI name: Acrylates / C 10-30 Alkyl Acrylate Crosspolymer).

[0167] In some embodiments, the hydrophobically modified aqueous anionic polymer thickener comprises a crosslinked acrylate copolymer. Examples of crosslinked acrylate copolymers include, but are not limited to, a crosslinked C10-30 alkyl crylates / acrylate polymer.

[0168] In certain embodiments as exemplified herein, the mineral sunscreen composition includes a C10-30 alkyl crylates / acrylate crosslinked polymer (about 0 to 0.5%), all amounts by weight, relative to the weight of the composition.

[0169] In certain embodiments as exemplified herein, the mineral sunscreen composition includes a C10-30 alkyl crylates / acrylate crosslinked polymer (approximately 0.3%), all amounts by weight, relative to the weight of the composition.

[0170] In some embodiments, the hydrophobically modified aqueous-phase anionic polymer thickener also has emulsifying properties.

[0171] At least one hydrophobically modified aqueous-phase anionic polymer thickening polymer is present at a concentration of approximately 0.05% to approximately 5%, or approximately 0.1% to approximately 2.5%, or approximately 0.1% to approximately 1.5%, or approximately 0.2% to approximately 1%, or approximately 0.25% to approximately 0.5%, or any appropriate combination, sub-combination, range or sub-range of these values ​​by weight, relative to the weight of the mineral sunscreen composition.

[0172] Thus, in various embodiments, at least one hydrophobically modified aqueous anionic polymer thickener is present in the mineral sunscreen composition in amounts of 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.5, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, and 2.5 percent, including increments and ranges therein and between them, based on the total weight of the mineral sunscreen composition. Polymer dispersant

[0173] In various embodiments, mineral sunscreen compositions may contain at least one polymer dispersant. In some embodiments, the polymer dispersant comprises polyhydroxystearic acid.

[0174] In some embodiments, the polymer dispersant comprises polyhydroxystearic acid (approximately 1 to 5%).

[0175] When present, at least one polymer dispersant is present at a concentration of about 1% to 25%, or about 1% to 10%, or about 1% to 5%, or about 1.5% to 2.5%, or about 2% to about 2.5%, or any appropriate combination, sub-combination, range or sub-range of these values ​​by weight, relative to the weight of the mineral sunscreen composition.

[0176] Thus, in various embodiments, at least one polymer dispersant is present in the mineral sunscreen composition from 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0, 24.0 to 25.0 percent, including intermediate increments and ranges, based on the total weight of the sunscreen composition. Mineral sunscreen. Rheology modifiers

[0177] In various embodiments, mineral sunscreen compositions may contain at least one rheology modifier. In some cases, certain rheology modifiers may be gelling agents.

[0178] In certain embodiments, when present, at least one rheology modifier is chosen from the group consisting of xanthan gum, cellulose gum, biosaccharide gum, carrageenan, gellan gum or associated thickeners such as Sepinov EMT10 (TM) or Sepigel (TM), Aristoflex (TM), and their combinations.

[0179] In some embodiments, at least one rheology modifier includes xanthan gum (about 0.1 to 0.5%), all quantities being by weight, relative to the weight of the composition.

[0180] Generally, the rheology modifier(s) that may be useful in the practical application of the present invention include those conventionally used in cosmetics, such as natural and synthetic polymers. Rheology modifiers are used in the mineral sunscreen compositions of the present invention when it is desired to adjust the viscosity or thickness of the mineral sunscreen compositions or to obtain a particular compositional texture.

[0181] Representative rheology-modifying agents that may be present include nonionic, anionic, cationic and amphoteric polymers, and other rheology modifiers such as cellulose-based thickeners (e.g., hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, cationic cellulose ether derivatives, quaternized cellulose derivatives, etc.), guar gum and its derivatives (e.g., hydroxypropyl guar, cationic guar derivatives, etc.), gums such as gums of microbial origin (e.g., xanthan gum, scleroglucan gum, etc.), and gums derived from plant exudates (e.g.arabic gum, ghatti gum, karaya gum, tragacanth gum, carrageenan gum, agar gum and locust bean gum), pectins, alginates and starches, crosslinked homopolymers of acrylic acid or acrylamidopropanesulfonic acid, associative polymers, non-associative thickening polymers and water-soluble thickening polymers.

[0182] Rheology modifiers include polymers selected from nonionic, anionic, cationic, and amphoteric amphiphilic polymers. Rheology modifiers may also be selected from associative celluloses, including quatemized cationic celluloses and quatemized cationic hydroxyethylcelluloses modified by groups containing at least one hydrophobic chain, such as alkyl, arylalkyl, or alkylaryl groups containing at least 8 carbon atoms, and mixtures thereof. The alkyl radicals carried by the above-mentioned quatemized celluloses or hydroxyethylcelluloses may, in various embodiments, comprise from 8 to 30 carbon atoms. The aryl radicals may, for example, designate phenyl, benzyl, naphthyl, or anthryl groups.Representative examples of quaternized alkylhydroxyethylcelluloses containing a C8-30 hydrophobic chain include Quatrisoft LM 200, Quatrisoft LM-X 529-18-A, Quatrisoft LM-X 529-18B (C12 alkyl) and Quatrisoft LM-X 529-8 (Cl8 alkyl) products sold by Amerchol and Crodacel QM, Crodacel QL (C12 alkyl) and Crodacel QS (C18 alkyl) products sold by Croda.

[0183] Representative examples of nonionic cellulose derivatives include hydroxyethylcelluloses modified with groups comprising at least one hydrophobic chain, such as alkyl, arylalkyl, or alkylaryl groups, or mixtures thereof, and wherein the alkyl groups are, for example, C8-C22 alkyl groups, such as the product Natrosol Plus Grade 330 CS (Cl6 alkyls) sold by Aqualon or the product Bermocoll EHM 100 sold by Berol Nobel. Representative examples of cellulose derivatives modified with alkylphenyl polyalkylene glycol ether groups include the product Amercell Polymer HM-1500 sold by Amerchol.

[0184] Rheology modifiers may be selected from Sepinov EMT10 (TM) or Sepigel (TM), Aristoflex (TM), or combinations thereof.

[0185] At least one rheology modifier may be present in an amount ranging from about 0.01% to about 10% by weight, in some embodiments from about 0.05% to about 5% by weight, or from about 0.1% to about 0.8% by weight, or from about 0.15% to about 0.3%, or any combination, sub-combination, appropriate range, or sub-range of these weight values, based on the weight of the mineral sunscreen composition.

[0186] Thus, in various embodiments, at least one rheology modifier may be present in the mineral sunscreen composition from 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, to 10.0%, including intermediate increments and ranges, based on the total weight of the mineral sunscreen composition. Antioxidants

[0187] In various embodiments, the mineral sunscreen composition may include at least one SPF-boosting antioxidant or a combination of SPF-boosting antioxidants.

[0188] In some embodiments, at least one FPS-stimulating antioxidant is selected from the group consisting of diethylhexyl syringylidene malonate, ethylhexyl methoxycrylene, and a combination thereof.

[0189] In some embodiments, at least one SPF-boosting antioxidant includes diethylhexyl syringylidene malonate and ethylhexyl methoxycrylene.

[0190] In some embodiments as exemplified herein, at least one SPF-boosting antioxidant includes diethylhexyl syringylidene malonate (about 0.1 to 1.0%) and ethylhexyl methoxycrylene (about 1.0 to 3.0%), all amounts by weight relative to the weight of the composition.

[0191] In some embodiments as exemplified herein, at least one SPF-boosting antioxidant includes diethylhexyl syringylidene malonate (about 0.45%) and ethylhexyl methoxycrylene (about 2%), all amounts by weight relative to the weight of the composition.

[0192] In some embodiments, at least one SPF-boosting antioxidant may be selected from butyloctyl salicylate, ethylhexyl methoxycrylene, styrene / acrylates copolymer (such as the product sold under the trade name SUNSPHERES TM), ethylenediamine / stearyl dimer dilinoleate copolymer, dimethicone and acrylates / dimethicone copolymer, silicone polymer comprising dimethicone and dimethicone / vinyl dimethicone copolymer, the UVA booster Solastay, and combinations thereof. In some particular embodiments, the SPF-boosting antioxidant comprises one or more butyloctyl salicylate and styrene / acrylates copolymers.

[0193] The at least one SPF-boosting antioxidant may be at a concentration of about 0.05% to 10%, in some embodiments, about 0.1% to 5%, or about 0.4% to 0.5%, or about 1.5% to 2.5%, or any combination, sub-combination, appropriate range, or sub-range of these values ​​by weight, based on the weight of the mineral sunscreen composition.

[0194] Thus, in various embodiments, at least one SPF-boosting antioxidant may be present in the mineral sunscreen composition in a weight percentage of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 2.0, 3.0, 4.0 to 5.0%, including increments and ranges in between, based on the total weight of the mineral sunscreen composition. Solvent systems for aqueous and oily phases

[0195] In various embodiments, the mineral sunscreen composition according to the disclosure includes a solvent system comprising aqueous and oil-based solvents, wherein the aqueous solvents are selected from aqueous and water-based solvents, and wherein the oil-based solvents include one or a combination of emollients and silicones. Therefore, in various embodiments, the solvent system comprises one or more oils / fatty compounds / emollients and silicones in the oil phase and water in the aqueous phase.

[0196] In some embodiments, the solvent system includes water, and one or more of glycerin and propanediol, and includes in the oil phase an oil / fat compound mixture selected from the group consisting of a caprylic / capric triglyceride, cetearyl isononanoate, cetearyl alcohol, dicaprylyl carbonate, isohexadecane, at least one C15-19 alkane, dimethicone and combinations thereof.

[0197] In some embodiments, the solvent system includes in the aqueous phase at least water, glycerin and propanediol, and includes in the oily phase an oil / fatty compound / emollient mixture comprising a caprylic / capric triglyceride, cetearyl isononanoate, cetearyl alcohol, dicaprylyl carbonate, isohexadecane, at least one C15-19 alkane, and dimethicone.

[0198] In certain embodiments as exemplified herein, the solvent system includes in the aqueous phase at least water (approximately 34 to 40%), glycerin (approximately 3 to 10%), and propanediol (approximately 3 to 10%), and includes in the oily phase an oil / fatty compound / emollient mixture comprising caprylic / capric triglyceride (approximately 0.01 to 0.1%), cetearyl isononanoate (approximately 0.5 to 5.0%), cetearyl alcohol (approximately 0.2 to 1.5%), dicaprylyl carbonate (approximately 0.5 to 7.0%), isohexadecane (approximately 1.0 to 5.0%), at least one C15-19 alkane (approximately 0.5 to 10%), and dimethicone (approximately 0.5 to 20%), all in weight amounts, on the based on the weight of the composition.

[0199] In some embodiments as exemplified herein, the solvent system includes in the aqueous phase at least water (about 36%), glycerin (about 5%) and propanediol (about 3%), and includes in the oily phase an oil / fatty compound / emollient mixture comprising caprylic / capric triglyceride (about 0.05%), cetearyl isononanoate (about 2.5%), cetearyl alcohol (about 0.6%), dicaprylyl carbonate (about 4 to 5%), isohexadecane (about 1.6 to 2.4%), at least one C15-19 alkane (about 6.5 to 7%) and dimethicone (about 1 to 2%), all amounts by weight, relative to the weight of the composition.

[0200] In various embodiments, the amount of each solvent or combination thereof present in the mineral sunscreen compositions may range from approximately 0.01% to approximately 70% by weight of the mineral sunscreen composition. In some embodiments, the solvent system includes water present from approximately 10% to approximately 70%, or from approximately 20% to approximately 50%, or from approximately 30% to approximately 40%. In some embodiments, the solvent system includes one or a combination of oils / fatty compounds, which may include silicone and non-silicone compounds, each of which may be present in a range of approximately 0.05% to approximately 25% and, in some embodiments, in combination up to approximately 60%.In various embodiments, the solvent system includes components present from approximately 0.01% to approximately 70%, or from approximately 0.05% to approximately 50%, or from approximately 0.1% to approximately 45%, or from approximately 0.1% to approximately 20%, or from approximately 0.1% to approximately 10%, or from approximately 0.5% to approximately 5%, or any appropriate combination, subcombination, range, or subrange of these values ​​by weight, relative to the weight of the mineral sunscreen composition. However, those skilled in the art will appreciate that other ranges fall within the scope of the invention.

[0201] Thus, any solvent may be present, by weight, based on the total weight of the mineral sunscreen composition, from approximately 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, to approximately 70% including increments and intermediate ranges, based on the total weight of the mineral sunscreen composition.

[0202] In various embodiments, the mineral sunscreen composition according to the disclosure includes in the oil-phase solvent system one or more oils selected from hydrocarbons, silicones, fatty alcohols, glycols, and vegetable oils. The oil may include a polar or non-polar oil or a combination thereof. In some embodiments, the oil may be selected from hydrocarbon-based oils derived from plants or of vegetable origin, mineral oil, ester oils, fatty alcohols containing 12 to 26 carbon atoms, fatty acids containing 12 to 26 carbon atoms, and vinylpyrrolidone copolymers, and combinations thereof.

[0203] The term "silicone oil" refers to an oil comprising at least one silicon atom, and in particular at least one Si-O group. The term "fluorinated oil" refers to an oil comprising at least one fluorine atom. The term "hydrocarbon-based oil" refers to an oil comprising primarily hydrogen and carbon atoms. Hydrocarbon-based oil may be an animal-based hydrocarbon oil, a vegetable-based hydrocarbon oil, a mineral-based hydrocarbon oil, or a synthetic-based hydrocarbon oil. In addition, a suitable oil may be a mineral-based hydrocarbon oil, a vegetable-based hydrocarbon oil, or a synthetic-based hydrocarbon oil. Hydrocarbon-based oils

[0204] The mineral sunscreen composition may include one or more hydrocarbon-based oils. For example, the hydrocarbon-based oil may be a saturated hydrocarbon, an unsaturated hydrocarbon, lipids, triglycerides, a natural oil, and / or a synthetic oil. In some embodiments, the mineral sunscreen composition may include a synthetic oil selected from the group consisting of hydrogenated polyisobutene and hydrogenated polydecene. A hydrocarbon-based oil may be a non-volatile hydrocarbon-based oil, such as: i.vegetable hydrocarbon-based oils, such as glyceride triesters, which are generally fatty acid and glycerol triesters, whose fatty acids can have varying chain lengths from C4 to C24, these chains being saturated or unsaturated and linear or branched; These oils include, in particular, wheat germ oil, sunflower oil, grapeseed oil, sesame oil, corn oil, apricot oil, castor oil, shea oil, avocado oil, olive oil, soybean oil, sweet almond oil, palm oil, rapeseed oil, cottonseed oil, hazelnut oil, macadamia oil, jojoba oil, alfalfa oil, poppy oil, pumpkin seed oil, and other oils. pumpkin seeds, blackcurrant oil, evening primrose oil, millet oil, barley oil, quinoa oil, rye oil, safflower oil, candlenut oil, passionflower oil and rosehip oil. ii. synthetic ethers containing 10 to 40 carbon atoms; iii. linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam and squalane 40; iv. synthetic esters, for example oils of the formula RCOOR' in which R represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms and R' represents a hydrocarbon chain that is in particular branched, containing from 1 to 40 carbon atoms provided that R + R' equals 10, for example, Purcellin oil (cetearyl octanoate), isopropyl myristate, isopropyl palmitate, a C12-C15 alkyl benzoate, such as the product sold under the trade name Finsolv TN or Witconol TN by Witco or Tegosoft TN by Evonik Goldschmidt, 2-ethylphenyl benzoate, such as the commercial product sold under the name X-Tend 226 by ISP, isopropyl lanolate, hexyl laurate, diisopropyl adipate, isononyl isononanoate, oleyl erucate, 2-ethylhexyl palmitate, isostearyl isostearate, diisopropyl sebacate, such as the product sold under the name "Dub Dis" by Stearinerie Dubois, octanoates,alcohol or polyol decanoates or ricinoleates, such as propylene glycol dioctanoate; hydroxylated esters, such as isostearyl lactate or diisostearyl malate; and pentaerythritol esters; citrates or tartrates, such as C12-C13 linear di(alkyl) tartrates, such as those sold under the name Cosmacol ETI by Enichem Augusta Industriale, and C14-C15 linear di(alkyl) tartrates, such as those sold under the name Cosmacol ETL by the same company; or acetates; v. fatty alcohols which are liquid at room temperature, containing a branched and / or unsaturated carbon-based chain containing 12 to 26 carbon atoms, for example octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol; vi. higher fatty acids, such as oleic acid, linoleic acid or linolenic acid; vii. carbonates, such as dicaprylyl carbonate, such as the product sold under the name Cetiol CC(TM) by Cognis; viii. fatty amides, such as isopropyl N-lauroyl sarcosinate, such as the product sold under the trade name Eldew SL 205(TM) by Ajinomoto; and ix. The essential oils chosen from the group consisting of sunflower oil, sesame oil, peppermint oil, macadamia nut oil, tea tree oil, evening primrose oil, sage oil, rosemary oil, coriander oil, thyme oil, chili berry oil, rose oil, anise oil, balsamic oil, bergamot oil, rosewood oil, cedarwood oil, chamomile oil, clary sage oil, clove oil, cypress oil, eucalyptus oil, fennel oil, sea fennel oil, frankincense oil, geranium oil, ginger oil, grapefruit oil, jasmine oil, juniper oil, lavender oil, lemon oil, lemongrass oil, lime oil, mandarin oil, marjoram oil, myrrh oil, neroli oil, orange oil, oil of Patchouli, pepper oil, black pepper oil, petitgrain oil, pine oil, rose otto oil, rosemary oil, sandalwood oil, spearmint oilSpikenard oil, vetiver oil, wintergreen oil, and ylang-ylang oil.

[0205] Hydrocarbon-based oils may be glyceride triesters and in particular caprylic / capric acid triglycerides, synthetic esters and in particular isononyl isononanoate, oleyl erucate, C12-C15 alkyl benzoate, 2-ethylphenyl benzoate and fatty alcohols, such as octyldodecanol. Examples of volatile hydrocarbon-based oils include hydrocarbon-based oils containing 8 to 16 carbon atoms and especially C8-C16 branched alkanes, such as petroleum-derived C8-C16 isoalkanes (also known as isoparaffins), such as isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecane or isohexadecane, oils sold under the trade names Isopar or Permethyl, C8-C16 branched esters, and isohexyl neopentanoate.

[0206] In some embodiments, the mineral sunscreen composition may comprise one or more oils such as those described above, and oils that may be selected from a branched or linear liquid alkane with a carbon chain length from C1 to C20. In various embodiments, the liquid alkanes may be selected from those having a carbon chain length from C1 to C20. The liquid alkanes may be selected from those having a carbon chain length from C1 to C20, or from C15 to C19, or from C1, C12, C13, C14, C15, C16, C17, C18 to C19. In some embodiments, suitable liquid alkanes that may be used according to disclosure include hydrocarbon-based oils containing 8 to 16 carbon atoms, and in particular C8-C16 branched alkanes such as C8-C16 isoalkanes.

[0207] In some embodiments, the mineral sunscreen composition may comprise one or more oils selected from polar oily / fatty compounds chosen from esters, triglycerides, ethers, carbonates, alcohols, oils, butters, fatty acids, and combinations thereof. In various embodiments, the polar oily / fatty compounds may be selected from those having a molecular weight of 400 g / mol or less. More generally, the polar oily / fatty compound may have a molecular weight in the range of approximately 50 g / mol% to approximately 350 g / mol.

[0208] In some embodiments, the mineral sunscreen composition may include polar oily / fatty compounds which include those derived from C12-C50 fatty acids and, in some embodiments, from C16-C22 saturated fatty acids and monohydric alcohols. In some embodiments, these esters may be selected from isopropyl myristate, methyl palmitate, isopropyl laurate, isopropyl palmitate, ethylhexyl palmitate, ethylhexyl laurate, ethylhexyl oleate, ethylhexyl isononanoate, myristyle myristate, 2-ethylhexyl caprate / caprylate (or octyl caprate / caprylate), 2-ethylhexyl palmitate, isostearyl neopentanoate, isononyl isononanoate, hexyl laurate, esters of lactic acid and fatty alcohols comprising 12 or 13 carbon atoms, dicaprylyl carbonate and mixtures thereof. Silicone oils

[0209] The composition of a mineral sunscreen may include one or more silicone oils. Non-limiting examples of silicone oils include dimethicone, cyclomethicone, polysilicone-11, phenyltrimethicone, trimethylsilylamodimethicone, and steaoxytrimethylsilane. In some cases, the mineral sunscreen composition includes dimethicone and, optionally, additional oils, including additional silicone oils. Generally, the one or more silicone oils are non-volatile silicone oils.In some embodiments, the silicone oil is polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising alkyl or alkoxy groups which are pendant and / or at the end of the silicone chain, each of which groups contain from 2 to 24 carbon atoms, or phenyl silicones, such as phenyltrimethicones, phenyldimethicones, phenyl(trimethylsiloxy)diphenylsiloxanes, diphenyldimethicones, diphenyl(methyldiphenyl)trisiloxanes or (2-phenylethyl)trimethylsiloxysilicates.

[0210] Other examples of silicone oils that can be mentioned include linear or cyclic volatile silicone oils, in particular those having a viscosity of 8 centistokes (8 x 10⁶ m² / s) and containing, in particular, 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups containing 1 to 10 carbon atoms. As oils of Volatile silicones that can be used in the invention include, in particular, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, rheptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, and dodecamethylpentasiloxane, and mixtures thereof. Fluorinated oils

[0211] The composition of a mineral sunscreen may include one or more fluorinated oils. For example, the one or more fluorinated oils may be selected from the group consisting of perfluoromethylcyclopentane, perfluoro-1,3-dimethylcyclohexane, dodecafluoropentane, tetradecafluorohexane, bromoperfluorooctyl, nonafluoromethoxybutane, nonafluoroethoxyisobutane, and 4-trifluoromethylperfluoromorpholine. Volatile fluorinated oils, such as nonafluoromethoxybutane, decafluoropentane, tetradecafluorohexane, and dodecafluoropentane, may also be used. cosmetic waxes

[0212] According to the disclosure, one or more waxes may optionally be present in the composition of the mineral sunscreen, the wax being selected from natural and synthetic waxes. Natural waxes may include animal tallow, berry wax, beeswax, grapefruit wax, orange peel wax, palm wax, rice bran wax, sumac wax, sunflower wax, soy wax, polyhydroxystearic acid, and combinations thereof.

[0213] In certain embodiments, where appropriate, a wax may be selected from oryza sativa cera (rice bran wax), candelilla wax, sunflower seed wax, carnauba wax, polyhydroxystearic acid, and combinations thereof. In one particular embodiment, the mineral sunscreen composition comprises rice bran wax.

[0214] Additional examples of waxes include, but are not limited to, hydrocarbon waxes, silicone waxes and / or fluoro waxes, and may be of vegetable, animal, mineral and / or synthetic origin. Examples of hydrocarbon waxes include beeswax, lanolin wax or Chinese insect wax; Rice wax, carnauba wax, candelilla wax, ouricury wax, esparto grass wax, cork fiber wax, sugar cane wax, Japanese wax, bay berry wax, lacquer wax and sumac wax, sunflower seed wax, montan wax, microcrystalline waxes, paraffins, ozokerite, polyethylene waxes, polymethylene waxes, waxes obtained by Fisher-Tropsch synthesis, and wax copolymers, as well as their esters. Beeswax is a notable example, for instance, the product sold under the name White beeswax BR G889 by Koster Keunen, carnauba wax, for example sold under the name Cerauba Tl Bio or Cerauba T3 by Baerlocher or under the name Mexoryl SAP by Noveal, Helianthus annuus (sunflower) wax sold under the name Sunflower Wax by Koster Keunen, ORYZA SATIVA (RICE) BRAN WAX, for example sold under the name NC 1710 by Cera Nica Noda, or one of their mixtures.

[0215] According to the various embodiments, the wax, if any, is present in the mineral sunscreen composition at a concentration, by weight, of about 0.1% to about 10%, or about 0.2% to about 4%, or about 0.5% to about 3%, or about 1% to about 2%, or any combination, sub-combination, range or sub-range of these values ​​by weight, based on the weight of the mineral sunscreen composition.

[0216] In some embodiments, the mineral sunscreen composition comprises several waxes, each being present in the mineral sunscreen composition at a concentration, by weight, based on the total weight of the mineral sunscreen composition, in the range of about 0.1% to about 10%, or any combination, sub-combination, range or sub-range of these values ​​by weight, based on the weight of the mineral sunscreen composition.

[0217] Thus, where appropriate, the wax is present by weight, based on the total weight of the mineral sunscreen composition, from approximately 0.10, 0.20, 0.30, 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, 1.0, 2, 3, 4, 5, 6, 7, 8, 9, to approximately 10% by weight, including intermediate increments and ranges. Moisturizing agents

[0218] According to the disclosure, in certain embodiments, one or more moisturizing or humectant agents may be present in the composition of mineral sunscreen.The moisturizing agent present in the composition of mineral sunscreen according to the disclosure includes, but is not limited to, one or more of the following polyols, including, for example, glycerin, glycerol, glycols, such as caprylyl glycol, butylene glycol, propylene glycol, isoprene glycol, dipropylene glycol, hexylene glycol and polyethylene glycols, monoethylene glycol, diethylene glycol, diethylene glycol, diethylene glycol, hexylene glycol, glycol ethers such as (Cl-C4)alkyl ethers of monopropylene, dipropylene and tripropylene glycol, squalane, triacetin, sugars, such as glucose, xylitol, maltitol, sorbitol, sucrose, pentaerythritol, inositol, pyrrolidone carboxylic acid, lactic acid, lithium chloride, acetamide MEA, sodium lactate, urea, dicyanamide, hyaluronic acid, aloe vera, honey and algae extract.

[0219] In some embodiments, the mineral sunscreen composition includes a moisturizing agent selected from one or a combination of glycerin present at approximately 4% and propanediol present at approximately 1%.

[0220] In various embodiments, the amount of moisturizing agent present in the mineral sunscreen composition may range from approximately 1% to approximately 25%, or from approximately 2% to approximately 20%, or from approximately 3% to approximately 5%, or any suitable combination, sub-combination, range, or sub-range of these values, by weight relative to the weight of the mineral sunscreen composition. However, those skilled in the art will appreciate that other ranges fall within the scope of the invention.

[0221] Thus, any one or combination of moisturizing agents may be present, by weight, on the basis of the total weight of the mineral sunscreen composition, from about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, to about 25%, including intermediate increments and ranges, on the basis of the total weight of the mineral sunscreen composition. Powders / Particles

[0222] The mineral sunscreen composition according to the disclosure may optionally include at least one or a combination of powders / particles to modify the sensory experience. In certain particular embodiments, the powders may be selected from the group consisting of aluminum stearate, alumina, silica, cellulose, boron nitride, perlite, aluminum starch, octenyl succinate, and combinations thereof.

[0223] In some embodiments, at least one powder includes cellulose (about 0.5 to 5.0%), all quantities being by weight, relative to the weight of the composition.

[0224] In some embodiments, at least one powder includes cellulose (about 1.7%), all quantities being by weight, relative to the weight of the composition.

[0225] The at least one powder, if applicable, may be at a concentration of about 0.05% to 15%, in some embodiments, about 0.1% to 10%, or about 1% to 5%, or any suitable combination, sub-combination, range, or sub-range of these values ​​by weight, based on the weight of the mineral sunscreen composition.

[0226] Thus, in various embodiments, a powder, if applicable, may be present in the mineral sunscreen composition in an amount in percentage by weight of 0.05, 0.06, 0.07, 0.08, 0.09, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, to 15.0%, including increments and intermediate ranges, based on the total weight of the mineral sunscreen composition. Organic UV filters

[0227] In some embodiments, the mineral sunscreen composition may include one or more organic UV filters. In some embodiments, the mineral sunscreen composition expressly excludes organic UV filters. The organic UV filter used for this disclosure may be active in the UV-A and / or UV-B region. The organic UV filter may be hydrophilic and / or lipophilic. The organic UV filter may be solid or liquid. The terms "solid" and "liquid" mean solid and liquid, respectively, at 25 °C and 1 atm.

[0228] An organic UV filter may be selected from the group consisting of anthranilic compounds; dibenzoylmethane compounds; cinnamic compounds; salicylic compounds; camphor compounds; benzophenone compounds; [3,[3-diphenylacrylate] compounds; triazine compounds; benzotriazole compounds; benzalmalonate compounds; benzimidazole compounds; imidazoline compounds; bis-benzoazolyl compounds; p-aminobenzoic acid (PABA) compounds; methylenebis(hydroxyphenylbenzotriazole) compounds; benzoxazole compounds; screening polymers and screening silicones; α-alkylstyrene derivative dimers; 4,4-diarylbutadiene compounds; guaiazulene and its derivatives; rutin and its derivatives; flavonoids; bioflavonoids; oryzanol and its derivatives; quinic acid and its derivatives; phenols; retinol; cysteine; aromatic amino acids;peptides having an aromatic amino acid residue; and mixtures thereof.

[0229] Examples of organic UV filter(s) include those listed below under their INCI names and mixtures thereof. Anthranilic compounds: Menthyl anthranilate, marketed under the brand name "Neo Heliopan MA" by Haarmann and Reimer. Dibenzoylmethane compounds: Butyl methoxydibenzoylmethane, marketed in particular under the brand name "Parsol 1789" by Hoffmann-La Roche; and isopropyl dibenzoylmethane. Cinnamic compounds: Ethylhexyl methoxycinnamate, marketed in particular under the brand name "Parsol MCX" by Hoffmann-La Roche; isopropyl methoxycinnamate; isopropoxy methoxycinnamate; isoamyl methoxycinnamate, marketed under the brand name "Neo Heliopan E 1000" by Haarmann and Reimer; cinoxate (2-ethoxyethyl-4-methoxycinnamate); DEA methoxycinnamate; diisopropyl methylcinnamate and glyceryl ethylhexanoate dimethoxycinnamate. Salicylic compounds: Homosalate (homomenthyl salicylate), marketed under the brand name "Eusolex HMS" by Rona / EM Industries; ethylhexyl salicylate, marketed under the brand name "Neo Heliopan OS" by Haarmann and Reimer; glycol salicylate; butyl salicylate; phenyl salicylate; dipropylene glycol salicylate, marketed under the brand name "Dipsal" by Scher; and TEA salicylate, marketed under the brand name "Neo Heliopan TS" by Haarmann and Reimer. Camphor compounds, in particular benzylidenecamphor derivatives: 3-benzylidene camphor, manufactured under the brand name "Mexoryl SD" by Chimex; 4-Methylbenzylidene camphor, marketed under the brand name "Eusolex 6300" by Merck; benzylidene camphor sulfonic acid, manufactured under the brand name " Mexoryl SL by Chimex; camphor benzalkonium methosulfate, manufactured under the brand name "Mexoryl SO" by Chimex, terephthalylidene dicamphor sulfonic acid manufactured under the brand name "Mexoryl SW" by Chimex; and polyacrylamidomethyl benzylidene camphor, manufactured under the brand name "Mexoryl SW" by Chimex. Benzophenone compounds: Benzophenone-1 (2,4-dihydroxybenzophenone), marketed under the brand name "Uvinul 400" by BASF; benzophenone-2 (tetrahydroxybenzophenone), marketed under the brand name "Uvinul D50" by BASF; Benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone, marketed under the brand name "Uvinul M40" by BASF; benzophenone-4 (hydroxymethoxybenzophenonesulfonic acid), marketed under the brand name "Uvinul MS40" by BASF; benzophenone-5 (sodium hydroxymethoxybenzophenone sulfonate); benzophenone-6 (dihydroxydimethoxybenzophenone), marketed under the brand name "Helisorb 11" by Norquay; benzophenone-8, marketed under the brand name "Spectra-Sorb UV-24" by American Cyanamid; benzophenone-9 (disodium dihydroxydimethoxybenzophenonedisulfonate), marketed under the brand name "Uvinul DS-49" by BASF; and benzophenone-12, and 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (UVINUL A+ by BASF).[3,[3-Diphenylacrylate] compounds: Octocrylene, marketed notably under the brand name "Uvinul N539" by BASF; and Etocrylene, marketed notably under the brand name "Uvinul N35" by BASF. Triazine compounds: Diethylhexyl butamido triazone, marketed under the brand name "Uvasorb HEB" by Sigma 3V; 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine marketed under the brand name "TINOSORB S" by CIBA GEIGY, and ethylhexyl triazone marketed under the brand name "UVTNUL T150" by BASF. Benzotriazole compounds, in particular phenylbenzotriazole derivatives: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, branched and linear, and those described in USP 5240975. Benzalmalonate compounds: Dineopentyl 4'-methoxybenzalmalonate, and polyorganosiloxanes comprising benzalmalonate functional groups, such as polysilicone-15, marketed under the brand name "Parsol SLX" by Hoffmann-LaRoche.Benzimidazole compounds, in particular phenylbenzimidazole derivatives: Phenylbenzimidazole sulfonic acid, marketed in particular under the brand name "Eusolex 232" by Merck, and disodium phenyl dibenzimidazole tetrasulfonate, marketed under the brand name "Neo Heliopan AP" by Haarmann and Reimer. Imidazoline compounds: Ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate. Bis-benzoazolyl compounds: Derivatives as described in EP-669 323 and US Patent No. 2,463,264. Para-aminobenzoic acid compounds: PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, marketed in particular under the brand name "Escalol 507" by [Company Name Missing]. ISP, glyceryl PABA and PEG-25 PABA, marketed under the brand name "Uvinul P25" by BASF. Methylene bis-(hydroxyphenylbenzotriazole) compounds, such as 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methylphenol] marketed as a solid under the brand name "Mixxim BB / 200" by Fairmount Chemical, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] marketed as a micronized aqueous dispersion under the brand name "Tinosorb M" by BASF, or under the brand name "Mixxim BB / 100" by Fairmount Chemical, and derivatives as described in US patents Nos. 5,237,071 and 5,166,355, GB-2,303,549, DE-197,26184 and EP-893,119, and Drometrizole trisiloxane, marketed under the brand name "Silatrizole » by Rhodia Chimie or - « Mexoryl XL » by L'Oréal. Benzoxazole compounds: 2,4-bis[5-l(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-l,3,5-triazine, marketed under the brand name Uvasorb K2A by Sigma 3V.Screening polymers and silicone screens: silicones described in WO 93 / 04665. α-Alkylstyrene derived dimers: dimers described in DE-19855649. 4,4-Diarylbutadiene compounds: 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

[0230] The organic UV filter(s) may be selected from the group consisting of: butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, homosalate, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, benzophenone-3, benzophenone-4, benzophenone-5, n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, 1,r-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone, 4-methylbenzylidene camphor, terephthalylidene diamphrul sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis-(n-butyl 4'-aminobenzalmalonate)-6-[(3-{ 1,3,3,3 -tetramethyl-l-[(trimethylsilyloxy]-disiloxanyl}propyl)amino]-s-triazine, 2,4,6-tris-(di-phenyl)-triazine, 2,4,6-tris-(ter-phenyl)-triazine,methylene bis-benzotriazolyl tetramethylbutylphenol, drometrizole trisiloxane, polysilicone-15, dineopentyl 4'-methoxybenzalmalonate, l,l-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, 2,4-bis[5-l (dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine, camphor methosulfate, benzylkonium, and mixtures thereof. Optional additives

[0231] Mineral sunscreen compositions may also include one or more additives used in the cosmetics industry which do not negatively affect the properties of the mineral sunscreen compositions according to the invention.

[0232] In some embodiments, the mineral sunscreen composition comprises one or more additives selected from the group consisting of skin conditioners, moisturizing agents, skin actives, preservatives, antimicrobials, powders, fillers, and combinations thereof.

[0233] In some embodiments, the mineral sunscreen composition comprises one or more additives selected from the group consisting of tocopherol, niacinamide, hydroxyacetophenone, citric acid, chlorphenesin, caprylyl glycol, aluminium stearate, alumina, silica and combinations thereof.

[0234] In some embodiments, the mineral sunscreen composition includes tocopherol, niacinamide, hydroxyacetophenone, citric acid, chlorphenesin, caprylyl glycol, aluminum stearate, alumina, and silica.

[0235] In certain embodiments as exemplified herein, the mineral sunscreen composition comprises tocopherol (approximately 0.1 to 1.5%), niacinamide (approximately 0.5 to 5.0%), hydroxyacetophenone (approximately 0.1 to 10%), citric acid (approximately 0.2 to 0.8%), chlorphenesin (approximately 0.1 to 1.0%), caprylyl glycol (approximately 0.1 to 0.5%), aluminium stearate (approximately 0.1 to 0.6%), alumina (approximately 0.1 to 0.3%), and silica (approximately 0.25 to 3.0%), all in weight relative to the weight of the composition.

[0236] In certain embodiments as exemplified herein, the mineral sunscreen composition comprises tocopherol (approximately 0.1%), niacinamide (approximately 0.3%), hydroxyacetophenone (approximately 0.5%), citric acid (approximately 0.6 to 0.7%), chlorphenesin (approximately 0.2%), caprylyl glycol (approximately 0.3%), aluminium stearate (approximately 0.5 to 0.8%), alumina (approximately 0.3 to 0.4%) and silica (approximately 1%), all quantities being by weight, based on the weight of the composition.

[0237] Optional additives may be selected from perfumes, pearlescent agents, silica, preservatives, proteins, protein hydrolysates, vitamins, panthenol, silicones, odor absorbers and colorants; antimicrobial components, including but not limited to phenoxyethanol, chlorphenesin, capryloyl glycol and sodium salicylate; thickeners and fillers, for example but not limited to isohexadecane (and) disteardimonium hectorite (and) propylene carbonate, and styrene / acrylates copolymer;essential oils selected from the group consisting of sunflower oil, sesame oil, peppermint oil, macadamia nut oil, tea tree oil, evening primrose oil, sage oil, rosemary oil, coriander oil, thyme oil, chili berry oil, rose oil, anise oil, balsam fir oil, bergamot oil, rosewood oil, cedar oil, chamomile oil; sage, clary sage oil, clove oil, cypress oil, eucalyptus oil, fennel oil, sea fennel oil, frankincense oil, geranium oil, ginger oil, grapefruit oil, jasmine oil, juniper oil, lavender oil, lemon oil, Indian verbena oil, lime oil, mandarin oil, marjoram oil, myrrh oil, neroli oil, orange oil, patchouli oil, pepper oil, black pepper oil, bitter orange petitgrain oil, pine oil, rose otto oil, rosemary oil, sandalwood oil, spearmint oil, spikenard oil, vetiver oil, wintergreen oil, and ylang-ylang; fruit extracts, for example Pyrus Malus (apple) fruit extract and Aloe Barbadensis leaf juice powder; citric acid, sodium chloride; neutralizing or pH-adjusting agents (for example, triethylamine (TEA) and sodium hydroxide), and combinations thereof.

[0238] Although the optional active additives are given by way of example, it shall be understood that other optional components compatible with known cosmetic applications in the art may be used. In certain particular embodiments, the mineral sunscreen composition may include antimicrobials comprising one or more of chlorphenesin and phenoxyethanol.

[0239] In certain particular embodiments, the mineral sunscreen composition may include active ingredients comprising one or more of citric acid, hydroxyacetophenone, niacinamide and tocopherol.

[0240] In various embodiments, the quantity of each of the one or more active ingredients and additives, if present in the mineral sunscreen composition, may be present in a range of about 0.001% to about 20%, by weight, or about 0.005% to about 0.01%, or about 0.01% to about 0.1%, or about 0.15% to about 5%, or about 0.40% to about 4%, or about 0.5% to about 2.5% by weight, or about 1% to about 2%, or any combination, sub-combination, range or sub-range of these values ​​by weight, based on the total weight of the mineral sunscreen composition. And in some embodiments, a combination of active ingredients and additives present in the composition of mineral sunscreen may be present in a range of about 0.001% to about 50%.

[0241] Thus, any one or a combination of active ingredients and additives, as appropriate, may be present, by weight, on the basis of the total weight of the mineral sunscreen composition, of approximately 0.001, 0.002, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.20, 0.30, 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, 1.0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 at approximately 20% by weight, including intermediate increments and ranges. EXAMPLES Example 1: Raw materials

[0242] Some of the raw materials as used in the inventive compositions are shown in Table 1 below.

[0243] [Tables 1] INGREDIENT SOURCE % active ZINC OXIDE (and) TRIETHYLHEXICA PRYLYLSILANE (ZnO particle size is between 20 nm and 30 nm) FINEX-50-OTS (TM) ZINC OXIDE C approximately 93% TITANIUM DIOXIDE (and) ISOHEXA DECANE (and) TRIETHYLHEXANOIN (and) ALUMINUM STEARATE (and) ALUMINE (and) POLYHYDROXYSTEARIC ACID Solaveil CT-200 (TM) TITANIUM DIOXIDE approximately 39% Ethylhexyl methoxycrylene Solastay SI (TM) 100% Diethylhexyl syringylidene malonate Oxynex ST (TM) 100% CROSS-CUT ACRYLATE POLYMER ES / ACRYLATE ALKYL IN Cl0-30 Pemulen EZ-4U (TM) 100% XANTHAN GUM Keltrol CG-T (TM) 100% Example 2: Inventive Composition

[0244] Embodiments of the inventive composition are presented in Table 2 below.

[0245] [Tables2] Ingredient Ex. inventive 1 Ex. inventive 2 Ex. inventive 3 Ex. inventive 4 Zinc oxide 15.35 12.38 10.23 13 Titanium dioxide 2.65 4.12 1.77 - Emollients 20.7 20.4 19.3 16.5 Ethylhexyl methoxycrylene 2 2 2 2 Diethylhexyl syrin gylidene malonate 0.5 0.5 - - Xanthan gum 0.15 0.15 0.25 0.25 Crosslinked acrylates / C10-30 alkyl acrylate polymer 0.3 0.3 0.3 0.3 Steareth-20 1 0.9 1 1 Steareth-2 0.6 0.5 0.6 0.6 Polysorbate 20 0.7 0.7 0.7 0.7 Glyceryl stearate 0.7 0.7 0.7 0.7 Polyhydroxystearic acid 2 2 2 2 Glycols 8 8 8 8 Other ingredients (cosmetic modifiers, pH adjusters, vitamins, preservatives) 7.2 7.2 7.0 7.0 Water QSQSQSQS Average in vivo SPF 54.2 60.8 32.5 31.1

[0246] Example 3: Embodiments of inventive and comparative compositions demonstrating the effect of the polymer thickener and rheology agents

[0247] [Tables3] Composition Anionic polysaccharide Thickener(s) Additional polymer(s) Emulsion quality EPS in vivo average Ex. inv. 1 Xanthan gum (0.15%) Crosslinked C10-C30 alkyl acrylate / acrylate polymer (0.3%) Good 54.2 Ex. comp. 1 Xanthan gum (0.15%) Gellan gum (0.3%) Failure - Ex. comp. 2 Xanthan gum (0.15%) Sclerotium gum (0.3%) Good 34.3 Ex. comp. 3 Xanthan gum (0.15%) Hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer (0.3%) Ammonium polyacryloyldimethyl taurate (0.1%) Good 35.2 Ex. comp. 4 Xanthan gum (0.15%), sclerotium gum (0.15%), and hydroxyethyl acrylate / sodium acryloyl dimethyltaurate copolymer (0.15%). Good 35.4

[0248] The compositions in Table 3 were prepared according to the inventive compositions in Table 2 using different aqueous-phase thickening systems, according to which all the compositions in Table 2 contain 18% by weight of total physical UV-attenuating materials with a zinc oxide / titanium dioxide ratio of 85:15. Gellan gum is an insufficient polymer thickener to form the emulsion structure (Comparative Ex. 1). Using the polymer thickeners in Comparative Ex. 2, 3, and 4, the compositions were able to form good-quality emulsions; however, they could not achieve a high sun protection factor using the same system of physical UV-attenuating materials contained in Inventive Ex. 1.

[0249] Example 4: Interaction between zinc oxide and thickener and effect on emulsion modulus

[0250] [Tables4] Example of an additional polymer thickener: Storage modulus (G') without zinc oxide (1%); Storage modulus after the addition of zinc oxide. Example of an inventive polymer: C10-30 alkyl acrylate / acrylate crosslinked polymer: 56.8 Pa; 81.3 Pa. Example of a comparative polymer: Sclerotium gum: 32.8 Pa; 30.8 Pa.

[0251] The examples in Table 4 were prepared as the simplex aqueous gel mixture in Table 5 below, according to which the storage modulus was measured before and approximately 1 hour after the addition of zinc oxide and triethoxycaprylylsilane. The storage modulus was measured and is reported at a 10% oscillation strain using a DHR-II rheometer equipped with a 40 mm parallel sandblasted Peltier plate geometry at 20 degrees Celsius at 1 rad / s. The simplex aqueous gel mixture prepared using the inventive polymer example, a C10-30 acrylate / alkyl acrylate crosslinked polymer, had a significant increase in storage modulus (56.8 to 81.3 Pa) after the addition of the zinc oxide material. Conversely, the aqueous simplex gel mixture prepared using the comparative polymer example, sclerotium gum, did not have a significant change in storage modulus (32.8 to 30.8 Pa) after the addition of the zinc oxide material.The increase in storage modulus is indicative of a structural modification and a specific association of acrylates / C10-30 alkyl acrylate crosslinked polymer and zinc oxide (and) triethoxycaprylylsilane, and is thought to be representative of the specific association of zinc oxide and a hydrophobically modified aqueous-phase anionic polymer thickener.

[0252] [Tables5] Ingredients % by weight Zinc oxide (and) triethoxycaprylylsilane 1% Additional polymer thickener 1% Xanthan gum 0.5% Glycerin 11.3% Propanediol 6.8% Water q.s.

[0253] Together, the compositions in Table 3 and the rheological data in Table 4 illustrate the important relationship between the hydrophobically modified anionic polymer thickener and zinc oxide. Example 5: Evaluation of mineral filters

[0254] [Tableauxô] Composition Zinc oxide treatment Average size of primary zinc oxide particles Total physical UV attenuation materials EPS in vi vo Stability White marks on skin Ex. inv. 1 Triethoxy-caprylylsilane 15-70 nm 18% 54.2 OK None Ex. comp. 5 Untreated 15-70 nm 14.5% 49.7 Failed after 2 weeks None Ex. comp. 6 Silica (and) hydrogen dimethicone 15-70 nm 14.5% 50.6 Failed after 2 weeks None Ex. comp. 7 Triethoxy-caprylylsilane >100 nm 18% ND OK Very white

[0255] The compositions in Table 6 illustrate the effect of the processing and particle size of the zinc oxide material on stability and white residue on the skin. The compositions in Table 6 were prepared according to the inventive compositions in Table 2; however, the total amount of UV attenuating physical materials and zinc oxide materials varied. In the compositions where the total UV attenuating physical materials were adjusted, the zinc oxide to titanium dioxide ratio was maintained at 85:15.

[0256] White residues were measured for the inventive and comparative compositions by applying 2 mg per cm² to an area of ​​skin on the palmar forearm of approximately 25 cm² using light pressure for approximately 20 to 30 seconds. The relative white effect was observed after drying for at least 15 minutes on medium to dark skin tones.

[0257] Stability was observed for the inventive and comparative compositions in glass jars at temperatures ranging from 4 degrees Celsius to 50 degrees Celsius for a period of up to 4 weeks. The absence of stability indicates that significant visual separation of the layers was observed in the glass jars.

[0258] The important relationship of triethoxycaprylylsilane as a treatment on the zinc oxide material and the stability of the inventive composition is demonstrated in Inventive Ex. 1 and Comparative Ex. 7 (Table 6). However, Comparative Ex. 7 contains zinc oxide with a larger primary particle size, resulting in a significant whitening effect measured on the skin. Untreated zinc oxide (Comparative Ex. 5) or other silane treatments of zinc oxide (Comparative Ex. 6) did not yield compositions capable of maintaining acceptable stability.

[0259] Although the disclosure has been described with reference to a preferred embodiment, a person skilled in the art will understand that various modifications can be made and equivalents can be substituted for elements thereof without departing from the scope of the disclosure. Furthermore, numerous modifications can be made to adapt a particular situation or subject matter to the teachings of the disclosure without departing from its essential scope. Accordingly, it is intended that the disclosure will not be limited to the particular embodiment disclosed as the best envisaged embodiment for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the appended claims.

[0260] Other definitions and terms:

[0261] The term “active ingredient,” as used herein in relation to the percentage of an ingredient or raw material, refers to 100% of the activity of the ingredient or raw material. All quantities stated herein are relative to the quantity of active ingredient, unless otherwise indicated.

[0262] “At least one” or “one or more”, as used herein, means one, two, three or more and thus includes individual components as well as mixtures / combinations.

[0263] The transitional terms “comprising,” “consisting essentially of,” and “consisting of,” when used in the appended claims, in their original and amended forms, define the scope of the claims with respect to any additional elements or steps of claims not mentioned, if any, which are excluded from the scope of the claim(s). As used herein, the terms “comprising,” “having,” and “including” (or “comprise,” “have,” and “include”) are used in their open, non-limiting sense.

[0264] The term "including" is intended to be inclusive or broad and does not exclude any additional element, process, step or material not listed. The term "consisting of" excludes any element, step, or material other than those specified in the claim and, in the latter case, impurities ordinarily associated with the specified material(s). The expression "consisting essentially of" limits the scope of a claim to the specified elements, steps, or material(s) and to those that do not materially affect the fundamental and innovative feature(s) of the claimed disclosure. All materials and processes described herein that embody this disclosure may, in other embodiments, be defined more specifically by any of the transitional terms "comprising," "consisting essentially of," and "consisting of."

[0265] As used herein, the expressions "and their mixtures", "and one of their mixtures", "and their combinations", "and one of their combinations", "or their mixtures", "or one of their mixtures", "or their combinations", and "or one of their combinations" are used interchangeably to indicate that the list of components immediately preceding the expression, such as "A, B, C, D, or their mixtures", means that the component(s) may be chosen from A, from B, from C, from D, from A+B, from A+B+C, from A+D, from A+C+D, etc., without limitation on the variations thereof. Thus, the components may be used individually or in any of their combinations.

[0266] Reference may be made herein to trade names of materials, including, but not limited to, materials such as polymers and optional components. Materials are not intended to be limited by the materials described and referenced herein by a particular trade name. Equivalent materials (for example, those obtained from a different source under a different name or catalogue (reference) number) to those referenced by a trade name may be substituted for and used in the processes described and claimed herein.

[0267] The terms "exempt" and "devoid" indicate that no reliably measurable excluded material is present in the mineral sunscreen composition, typically 0% by weight, relative to the total weight of the mineral sunscreen composition.

[0268] As used herein, the terms “substantially free” or “essentially free” mean that the specific material may be present in small amounts that do not materially affect the fundamental and novel features of the embodiments of the mineral sunscreen composition according to the disclosure, or that the material may be absent. For example, there may be less than 2% by weight of a specific material added to a composition, relative to the total weight of the mineral sunscreen compositions (provided that an amount less than 2% by weight does not materially affect the fundamental and novel features of the embodiments of the mineral sunscreen composition according to the disclosure). Similarly, mineral sunscreen compositions may include less than 2%, less than 1.5%, less than 1%, less than 0.5%, less than 0.1%, less than 0.05%, or less than 0.01%, or no amount (0%) of the specified material. Furthermore, all components positively presented in this disclosure may be negatively excluded from the claims; for example, a claimed composition may be "free," "substantially free," or "substantially free" of one or more components that are positively presented in this disclosure. The terms "substantially free" or "substantially free," as used herein, may also mean that the specific material is not added to the mineral sunscreen composition but may nevertheless be present in a raw material that is included in the mineral sunscreen composition.

[0269] All percentages and ratios are, unless otherwise stated, calculated by weight. All percentages are, unless otherwise stated, calculated relative to the total composition. In general, unless expressly stated otherwise herein, "weight" or "quantity" as used herein with respect to the percentage quantity of an ingredient refers to the quantity of raw material comprising the ingredient, the raw material being described herein as comprising less than and up to 100% of the ingredient's activity. Accordingly, the weight percentage of an active ingredient in the mineral sunscreen composition is represented as the quantity of raw material containing the active ingredient that is used and may or may not reflect the final percentage of the active ingredient, where the final percentage of the active ingredient depends on the weight percentage of the active ingredient in the raw material.

[0270] All ranges and quantities stated herein are intended to include subranges and quantities using any disclosed point as a boundary. Thus, a range of "1% to 10%, as well as 2% to 8%, as well as 3% to 5%" is intended to encompass ranges of "1% to 8%", "1% to 5%", "2% to 10%", and so on. All figures, quantities, ranges, etc., are intended to be modified by the term "approximately", whether or not expressly stated. Similarly, a given range of "approximately 1% to 10%" is intended to have its boundaries of both 1% and 10% modified by the term "approximately". Furthermore, it is understood that where a quantity of a component is given, it is intended to mean the quantity of the active material, unless specifically stated otherwise.

[0271] Although the numerical ranges and parameters presenting the general scope of the disclosure are approximations, unless otherwise indicated, the numerical values ​​presented in the specific examples are reported as accurately as possible. However, every numerical value inherently contains some errors necessarily resulting from the standard deviation observed in their test measurements. respective. The following example serves to illustrate ways in which this disclosure can be implemented, but is not exhaustive in nature.

Claims

Demands

1. Mineral sunscreen composition comprising: a broad-spectrum, low-viscosity oil-in-water emulsion comprising aqueous and oily phases, the mineral sunscreen composition comprising: a) a UV-absorbing system comprising at least one UV-attenuating physical material, the at least one UV-attenuating physical material comprising primary zinc oxide particles having an average size in the range of about 15 nm to about 35 nm, the zinc oxide particles being coated with triethoxycaprylylsilane; b) an emulsification system comprising: i. at least one high-HLB emulsifier having an HLB greater than 13; ii.at least one low HLB emulsifier having an HLB less than 6; and (c) an aqueous phase hydrophobically modified anionic polymer thickener comprising carboxylic acid residues; wherein the high HLB and low HLB emulsifiers combined with a hydrophobically modified anionic polymer thickener are present in a ratio in the range of about 1.0:0.05 to about 1.0:0.15, and wherein the mineral sunscreen composition has an SPF that is at least 40, a UVA-V UV ratio that is at least 0.7, and a critical wavelength that is greater than 370 nm.

2. Mineral sunscreen composition according to claim 1, wherein the composition has an SPF of at least 30.

3. Mineral sunscreen composition according to claim 1, wherein the zinc oxide particles are selected from the group consisting of zinc oxide (and) triethoxycaprylylsilane, having a particle size of about 20 nm, zinc oxide (and) silica (and) hydrogen dimethicone, having a particle size of about 25 nm, zinc oxide (and) caprylic / capric triglyceride (and) polyhydroxystearic acid (and) isostearic acid, having a particle size of about 60 nm, zinc oxide (and) C12-15 alkyl benzoate (and) triethoxycaprylylsilane (and) polyhydroxystearic acid, having a particle size of about 30 nm, and combinations thereof.

4. Mineral sunscreen composition according to claim 1, wherein at least one UV-attenuating physical material is present in the mineral sunscreen composition in the range of about 10% to about 25%, all amounts being based on the total weight of the mineral sunscreen composition.

5. Mineral sunscreen composition according to claim 1, wherein the hydrophobically modified aqueous phase polymer thickener further functions as a polymer emulsifier.

6. Mineral sunscreen composition according to claim 1, wherein the hydrophobically modified aqueous phase polymer thickener comprises acrylates / C10-30 alkyl acrylate crosslinked polymer.

7. Mineral sunscreen composition according to claim 1, wherein the emulsification system comprises glyceryl stearate, steareth-2, steareth-20 and polysorbate 20.

8. Mineral sunscreen composition according to claim 1, comprising a rheology modifier selected from the group consisting of xanthan gum, cellulose gum, biosaccharide gum, carrageenan, gellan gum, or associative thickeners such as Sepinov EMT10 (TM) or Sepigel (TM), Aristoflex (TM), and combinations thereof.

9. Mineral sunscreen composition according to claim 1, comprising at least one antioxidant comprising one or more of diethylhexyl syringylidene malonate and ethylhexyl methoxy crylene.

10. Mineral sunscreen composition according to claim 1, comprising an oil-phase solvent system comprising a combination of oily / fatty compounds and silicones selected from caprylic / capric triglyceride, cetearyl isononanoate, cetearyl alcohol, dicaprylyl carbonate, isohexadecane, C15-19 alkane, dimethicone and combinations thereof.