Fluid emulsion compositions containing a UV-absorbing system including a physical UV-attenuating material, a surfactant, and a thickener

Abstract

FLUID EMULSION COMPOSITIONS CONTAINING A UV-ABSORBING SYSTEM INCLUDING A UV-ATTENUATING PHYSICAL MATERIAL, A SURFACTANT, AND A THICKENER. This disclosure relates to fluid emulsion compositions comprising a UV-absorbing system (component) including at least one ultraviolet (UV) attenuating physical material, a surfactant system (component) including at least one high hydrophilic-lipophilic balance (HLB) surfactant and at least one low HLB surfactant, and a thickening system including at least one polysaccharide selected from anionic polysaccharides, branched homopolysaccharides, and mixtures thereof, as well as methods for preparing and using such compositions. Figure for abstract: none

Description

Title of the Invention: Emulsion Fluid Compositions Containing a UV Absorbing System Including a Physical UV Attenuating Material, a Surfactant, and a Thickener Field of the Invention

[0001] The present disclosure relates to emulsion fluid compositions comprising a UV absorbing system (component) comprising at least one physical ultraviolet (UV) attenuating material, a surfactant system (component) comprising at least one surfactant with a high hydrophilic - lipophilic balance (HLB) and at least one surfactant with a low HLB, and a thickening system comprising at least one polysaccharide selected from the group consisting of anionic polysaccharides, branched homopolysaccharides, and mixtures thereof, as well as methods of making and using such compositions. Discussion of the Background

[0002] Exposure to radiation with wavelengths between 290 nm and 400 nm, called ultraviolet radiation or simply "UVR", is involved in a number of skin diseases and disorders. Exposure to radiation with wavelengths between 290 and 320 nm, also called UVB radiation, can cause many adverse changes in the biomechanical properties, appearance, and health status of the epidermis, leading to erythema (sunburn), an immediate darkening of the skin, the appearance of wrinkles leading to premature skin aging (i.e., photoaging), and various other skin health problems that may include melanoma or other skin photocancers.

[0003] UVA rays with wavelengths between 320 and 400 nm penetrate the skin more deeply than UVB rays. Exposure to UVA rays can cause immediate and persistent tanning of the skin, as well as other changes in skin texture or appearance. Daily exposure to UVA rays, even for a short period under normal conditions, can damage collagen and elastin fibers, resulting in changes in the skin's microrelief, the appearance of wrinkles, and uneven pigmentation (spots, uneven skin tone).

[0004] Numerous studies show the need for effective protection against UVA and UVB to prevent sunburn, photoaging and other skin conditions and diseases related to UVR exposure.

[0005] In order to obtain a product with high protection against UVR, it is generally necessary to combine a large number of sunscreens and / or a large quantity of UV filters to achieve high levels of filtration efficiency.

[0006] However, high levels of UV filters do not lend themselves to the easy formulation of stable compositions with a pleasant texture. It is possible to obtain high UV protection using one or more organic UV filters; however, organic UV filters are often very greasy and unpleasant when applied to the skin, particularly when used at high levels in a sunscreen formulation required for high UV protection efficacy.

[0007] Mineral UV filters such as titanium dioxide or zinc oxide are alternative UV filters to organic UV filters that can provide more pleasant textures; however, when one or more mineral UV filters are used, the resulting sunscreen formulation is far too whitening (leaving "white streaks") when applied to the skin. When mineral UV filters are used at lower levels, it may be possible to produce sunscreen formulations with little or no whitening when applied to the skin; however, such formulations, containing low levels of mineral UV filters, are unable to produce the desired high levels of UV protection.

[0008] Similarly, it may be difficult to combine an organic UV filter and a mineral UV filter in a single composition, especially in order to obtain a non-greasy, pleasant, non-whitening and high UV protection sunscreen formulation, particularly taking into account the need to balance the effectiveness of UVA and UVB protection.

[0009] Finally, consumers appreciate fluid sunscreen compositions such as spray or lotion sunscreens because they generally allow for easy and pleasant application and spreading on the skin. However, preparing stable, fluid sunscreen compositions containing mineral UV filters can be particularly challenging due to the large quantity of mineral UV filters typically required to provide high UVR protection in sunscreen compositions. Mineral UV filters are solid particles that are difficult to suspend and disperse in fluid sunscreen compositions. Solid particles such as mineral UV filters are also difficult to maintain in a dispersed or suspended state within fluid sunscreen compositions to provide high UVR protection.

[0010] There remains a need in the art of improved fluid sunscreen compositions comprising a UV-absorbing system including at least one physical material UV attenuation products that have high UV protection and balanced UVA and UVB protection, are stable, non-greasy, pleasant to apply and do not leave white marks when applied to the skin.

[0011] Therefore, one aspect of the present disclosure is a fluid composition stable comprising a UV-absorbing system including at least one physical UV attenuating material that is not greasy, does not whiten when applied to the skin, and provides high UV protection. Summary of the invention

[0012] This disclosure relates to fluid emulsion compositions comprising a UV-absorbing system including at least one ultraviolet (UV) attenuating physical material, a surfactant system including at least one high-HLB surfactant and at least one low-HLB surfactant, and a thickening system including at least one polysaccharide selected from the group consisting of anionic polysaccharides, branched homopolysaccharides, and mixtures thereof. Preferably, the compositions are non-greasy and / or non-whitening (i.e., the compositions do not leave white residue) upon application. Preferably, the compositions provide broad-spectrum UV protection. Preferably, the compositions provide SPF protection of at least 25, preferably at least 30. Preferably, the compositions further include at least one antioxidant.

[0013] This disclosure also relates to processes for the treatment, care, protection, enhancement of appearance and / or makeup of keratinous material, including the application of compositions of this disclosure to keratinous material in sufficient quantity to treat the keratinous material, care for it, enhance its appearance and / or make it up.

[0014] This disclosure also relates to methods for producing fluid emulsion compositions comprising at least one ultraviolet (UV) attenuating physical material by combining at least one ultraviolet (UV) attenuating physical material, at least one high-HLB surfactant, at least one low-HLB surfactant, and at least one polysaccharide selected from the group consisting of anionic polysaccharides, branched homopolysaccharides, and mixtures thereof, during the formation of the compositions to produce fluid emulsion compositions. Preferably, the compositions are non-greasy and / or non-whitening (i.e., the compositions do not leave white residues) upon application. Preferably, the compositions provide broad-spectrum protection against UV radiation. Preferably, the compositions provide SPF protection of at least 25, preferably at least 30. Preferably, the compositions also include at least one antioxidant.

[0015] It must be understood that both the preceding general description and the following detailed description are merely illustrative and explanatory and do not limit disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0016] In the following description and the claims annexed thereto, it shall be understood that the terms used have their ordinary and usual meanings in the art, unless otherwise specified.

[0017] “Approximately”, as used herein, means to within 10% of the number indicated (for example, “ "Approximately 10%" means from 9% to 11% and "approximately 2%" means from 1.8% to 2.2%.

[0018] “Fluid composition”, as used herein, refers to a composition that is not not solid at room temperature (25 °C) and whose viscosity can be measured.

[0019] By "fluid," we mean a liquid composition that flows under its own weight at room temperature (25 °C) and atmospheric pressure. Advantageously, a fluid composition according to this disclosure has a complex stiffness modulus G* of less than 1000 Pa, preferably less than 400 Pa, and preferably less than 200 Pa.

[0020] “Film-forming”, “film-forming polymer” or “film-forming agent” as used herein means a polymer or resin that is capable of leaving a film on the substrate to which it is applied, for example, after a solvent accompanying the film-forming agent has evaporated, been absorbed into the substrate and / or dissipated on it.

[0021] “Substitute” as used herein means comprising at least one substitute. Non-limiting examples of substituents include atoms, such as oxygen and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen-containing groups, ester groups, thiol groups, sulfonate groups, thiosulfate groups, siloxane groups, and polysiloxane groups. The substituent(s) may, in addition, be substituted.

[0022] “Volatile”, as used herein, means having a flash point below about 115 °C.

[0023] “Non-volatile”, as used here, means having a flash point greater than approximately 115 °C.

[0024] “Polymer” as used herein means a compound that is made up of at least two monomers.

[0025] “Exempt” or “substantially exempt” or “devoid of”, as used herein This means that, although it is preferable for no quantity of the specific component to be present in the composition, it is possible that there may be very small quantities. of this in the compositions of the disclosure provided that these quantities do not materially affect at least one, preferably most, of the advantageous properties of the compositions of the disclosure. Thus, for example, "oil-free" means that an effective amount (i.e., greater than trace amounts) of oil(s) is omitted from the composition (i.e., about 0% by weight), "substantially oil-free" means that one or more oils are present in amounts not exceeding 0.1% by weight, and "oil-free" means that one or more oils are present in amounts not exceeding 0.25% by weight, based on the total weight of the composition.The same nomenclature applies to all other ingredients identified throughout the application and in this paragraph, such as, for example, specific UV filters and / or surfactants (the compositions in the disclosure that are "free of oxybenzone and / or octinoxate," "substantially free of oxybenzone and / or octinoxate," and "devoid of oxybenzone and / or octinoxate," as well as "free of surfactants," "substantially free of surfactants," and "devoid of surfactants" have meanings consistent with the discussion in this paragraph), even if they are not specifically mentioned for each ingredient identified in the application. The examples mentioned of the use of such language as that in this paragraph are intended to be provided by way of example, and not as a limitation.

[0026] “UV filters” as used herein refers to active sunscreen agents approved by a government regulatory agency such as the Food and Drug Administration (FDA) in the United States or the European Commission in Europe and include organic UV filters such as avobenzone, octocrylene, benzophenones, benzotriazoles and merocyanines, as well as physical ultraviolet (UV) attenuation materials.

[0027] “Whitening” or “white marks” as used herein refer to the appearance The visually white appearance of the keratinous substance after application of a composition to the keratinous material compared to the appearance of the keratinous material before application of the composition. A composition is "non-bleaching" if it provides a minimal or no visually white appearance (preferably no visually white appearance) of the keratinous material upon application.

[0028] “Anhydrous” as used here means that the compositions of the disclosure contain less than 3% water, which means that compositions can also contain less than 2% water, and less than 1% water, as well as be "water-free", "substantially water-free" and "water-free".

[0029] A "UV-absorbing system containing essentially at least one physical ultraviolet (UV) attenuating material" as used here means that the disclosure compositions contain less than 3% of UV filters other than UV attenuating physical material(s), in particular less than 3% organic UV filters, means that in this definition as subcategories, compositions containing less than 2% UV filters other than UV attenuating physical material(s), in particular less than 2% organic UV filters, and less than 1% UV filters other than UV attenuating physical material(s), in particular less than 1% organic UV filters, as well as those that are "free of UV filters other than UV attenuating physical material", "substantially free of UV filters other than UV attenuating physical material", and "devoid of UV filters other than UV attenuating physical material", as defined above.

[0030] “System” and “component” are used interchangeably in the present request.

[0031] “Primary particle” as used in relation to the description of the material Ultraviolet (UV) attenuation physics here refers to inorganic or organic particles (structures) that can be held together by molecular or atomic bonding to form an ultraviolet (UV) attenuation physics material.

[0032] “Primary particle size” means the size of a non-aggregated primary particle in a physical material for attenuating ultraviolet (UV).

[0033] “Passive” as used in relation to the description of a physical material Ultraviolet (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.

[0034] “Keratinous materials” or “keratinous substance” means nails (nails of the fingers and / or toes), skin such as the body, face and eye area, scalp, keratinous fibers such as eyelashes, eyebrows and hair and mucous membranes such as lips.

[0035] “Physiologically acceptable” means compatible with keratinous materials and having a pleasant color, smell and feel, and which does not cause unacceptable discomfort (tingling or pulling) likely to discourage a consumer from using the composition.

[0036] “UV protection efficiency” or “filtration efficiency” in the context of This disclosure is evaluated based on one or more of the following: FPS, FPUVA, critical wavelength, and UVA-I / UV ratio.

[0037] The "SPF" (Sun Protection Factor) measures the level of protection against erythema provided by a composition. The SPF value corresponds to the ratio between the minimum erythematous dose (MED) measured on skin covered with the composition and the DEM measured on bare skin. The term "SPF" is 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).

[0038] 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.

[0039] The evaluation of the sun protection factor (SPF) can also be performed in vivo in accordance with ISO 24444:2019 “Cosmetics-Sun protection test methods-In-vivo determination of the sun protection factor (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 U.S. Federal Register on May 7, 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.

[0040] “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.

[0041] The evaluation of UVA protection can also be measured in vitro with the Labsphere spectrophotometer under conditions such as those mentioned above in connection with the SPF. ISO 24443:2021 describes such an in vitro procedure.

[0042] FDA broad-spectrum test procedures, particularly "critical wavelength" test procedures, are also available in 21 CFR Part 352 Subpart D § 352.72. In addition, broad-spectrum test procedures include the determination of the UVA1 / UV ratio as described in "Sunscreen Drug Products for Over-the-Counter-Human-Use" published in the Federal Register https: / / www.federalregister.gov / documents / 2019 / 02 / 26 / 2019-03019 / sunscreen-drug-products-for-over-the-counter-human-use.

[0043] According to this disclosure, the compositions in this disclosure preferably have one or more of the following properties:

[0044] The compositions have a critical wavelength, as determined by FDA critical wavelength procedures, of at least 370 nm;

[0045] The compositions have an FPS value of at least 15, preferably at least 30, preferably at least 50 and preferably at least 70;

[0046] The compositions have an FPUVA / FPS ratio of at least 1 / 3, and preferably of at least 2 / 5 and / or

[0047] The compositions have a UVA1 / UV ratio of 0.7 or more, preferably 0.75 or more, and preferably 0.8 or more.

[0048] “Makeup result”, as used herein, refers to compositions where The color remains the same or substantially the same as at the time of application, as observed with the naked eye, after a prolonged period. The "makeup result" can be evaluated by assessing the long-lasting properties using any method known in the art for evaluating such properties. For example, long-lasting performance can be assessed by a test involving the application of a composition to a keratinous material such as skin and evaluating the color of the composition after a prolonged period. For example, the color of a composition can be evaluated immediately after application to a keratinous material such as skin, and these characteristics can then be re-evaluated and compared after a certain duration. Furthermore, these characteristics can be evaluated in relation to other compositions, such as commercially available compositions.

[0049] “Natural” as in the expression “natural compound” means any compound derived directly from a natural substance such as a plant without having undergone chemical modification.

[0050] “Compound of natural origin” means any compound derived from a natural compound which has undergone one or more chemical modifications, for example by organic synthesis reaction, without the properties of the natural compound having been modified.

[0051] “Synthetic compound” means any compound that is neither a natural compound nor a composed of natural origin.

[0052] “Room temperature” means approximately 20 to 25 °C.

[0053] “Atmospheric pressure” means about 760 mmHg, i.e. about 105 pascals.

[0054] “UV filter” and “sunscreen agent” are used interchangeably in the present request.

[0055] “Effectiveness against UV”, “UV effectiveness” and “Effectiveness of UV protection” are used interchangeably in this application.

[0056] The compositions and methods of the present invention may comprise, consist of, or essentially consist of the essential elements and limitations of the disclosure described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful. For example, the UV (ultraviolet) absorbing system of the compositions in the disclosure may "consist essentially of" at least one physical ultraviolet (UV) attenuating material.

[0057] For the purposes of this disclosure, the "fundamental novel property" associated with compositions, components and processes related to UV protection properties that "consist essentially of" identified ingredients or actions is the "SPF".

[0058] For the purposes of this disclosure, the "fundamental novel property" associated with the compositions, components and processes related to the properties of the composition that "consist essentially of" identified ingredients or actions is "stability".

[0059] “Stable” or “stability” as used herein refers to emulsion compositions that do not show any visible signs of separation, creaming and / or stabilization over an indicated period of up to 12 weeks at temperatures of 25°C and 45°C.

[0060] The compositions of this disclosure may be in any form suitable for use as a personal care composition, such as a stick, paste, cream, liquid, solid, etc. These compositions may be used for all personal care purposes in cosmetic and / or dermatological products such as, for example, sunscreen, foundation, lip balms, lipsticks, concealers, mascaras, leave-in hair products, eyeshadows, powders, etc.

[0061] Reference is 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.

[0062] Unless otherwise stated, all percentages and ratios are calculated by weight. Unless otherwise stated, all percentages are calculated relative to the total weight of a composition. All component or composition rates refer to the active rate of that component or composition and are understood to be exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources. COMPOSITION UV attenuating physical material

[0063] According to this disclosure, compositions comprising at least one ultraviolet (UV) attenuating physical material are proposed. "UV attenuating physical material" as used herein 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 physical UV attenuation material preferably 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.

[0064] 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 dioxide, metal oxides, sodium hexametaphosphate, alumina, and / or glycerol. Preferably, the UV attenuating physical material is passivated.

[0065] Preferably, the UV attenuation physical material comprises one or more zinc oxides and / or titanium dioxides. Preferably, the UV attenuation physical material comprising one or more zinc oxides or titanium dioxides is passivated.

[0066] According to preferred embodiments, the UV attenuating physical material comprises titanium dioxide. The titanium dioxide may be present in any form in the compositions disclosed herein. Furthermore, the TiO2 may be treated (coated) or untreated.

[0067] According to preferred embodiments, the UV attenuation physical material comprises zinc oxide. The zinc oxide may be present in any form (for example, as wurtzite or zinc blende) in the compositions disclosed herein. Furthermore, the zinc oxide may be treated (coated) or untreated.

[0068] Preferably, the UV attenuation physical material comprises zinc oxide. Preferably, the zinc oxide is passivated.

[0069] Preferably, the UV attenuation physical material comprises titanium dioxide. Preferably, the titanium dioxide is passivated.

[0070] Preferably, the average primary particle size of the ultraviolet (UV) attenuating material is from 1 nm to 500 nm, preferably from 5 nm to 250 nm, preferably from 10 nm to 100 nm, and preferably 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.

[0071] Suitable examples of coated pigments include, but are not limited to, titanium dioxides that have been coated such as titanium dioxides:

[0072] - of hydrated silica, such as Tayca's MT-100WP product,

[0073] - of silica and iron oxide, such as the Sunveil F product from Ikeda;

[0074] - of silica and alumina, such as Tayca's MT-500SA and MT-100SA products and Croda's Tioveil™ AQ-N,

[0075] - of alumina, such as Ishihara's TTO-55 (A) product,

[0076] - of alumina and aluminum stearate, such as the MT-100TV and MT-100Z products and Tayca's MT-01, Croda's Solaveil™ CT 100, and Merck's Eusolex T-AVO,

[0077] - of silica, alumina and alginic acid, such as Tayca's MT-100AQ product,

[0078] - of alumina and aluminum laurate,

[0079] - of iron oxide and iron stearate,

[0080] - of zinc oxide and zinc stearate,

[0081] - of silica and alumina and treated with a silicone, such as the MTY-500SAS products or Microtitanium Dioxide MT-100SAS from Tayca,

[0082] - of silica, alumina and aluminum stearate and treated with a silicone,

[0083] - of silica and treated with a silicone,

[0084] - of silica and treated with a silicone, such as Ishihara's TTO-55(S) product;

[0085] - of triethanolamine,

[0086] - stearic acid, such as Ishihara's TTO-55 (C) product,

[0087] - of sodium hexametaphosphate,

[0088] - of octyltrimethylsilane,

[0089] - of a polydimethylsiloxane, of TiO2 anatase / rutile treated with a polydimethylhydrogenosiloxane

[0090] - of triethylhexanoin, aluminium stearate and alumina sold under the name commercial Solaveil™ CT-200 by Croda,

[0091] - of aluminium stearate, alumina and silicone, sold under the trade name Solaveil™ CT-12W by Croda,

[0092] - of lauroyl lysine, and / or

[0093] - of C9-Ci5 fluoroalcohol phosphate and aluminium hydroxide.

[0094] Other examples include TiO2 pigments doped with at least one transition metal such as iron, zinc, or manganese, preferably manganese. Preferably, the doped pigments are in the form of an oily dispersion. The oil in the oily dispersion is preferably selected from triglycerides such as, for example, 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. Preferably, 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.

[0095] Suitable uncoated titanium oxide includes, but is not limited to, those sold by Tayca under the trade names MT-500B or MT-600B, or by Evonik under the name Degussa P 25.

[0096] Appropriate examples of uncoated zinc oxide include, but are not limited to, 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.

[0097] 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 those described, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64, such as amino acids, beeswax, fatty acids, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminum salts of fatty acids, metal alkoxides (titanium or aluminum), polyethylene, silicones, silica hydrated, proteins (collagen, elastin), alkanolamines, silicon oxides, triethoxycaprylylsilane, metal oxides or sodium hexametaphosphate.

[0098] 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 ZnO, such as those marketed by BASF under the name Z-COTE HP1, or by TAYCA under the name "MZX-508OTS", "MZY-203OTS" or "MZX-304OTS" or by DSM under the name PARSOL ZX; for example: ZnO marketed under the brand name "Zinc Oxide CS-5" by Toshiba (ZnO coated with polymethylhydrosiloxane); 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 dispersed in cyclopentasiloxane); ZnO marketed under the brand name "SPD-Z1" by Shin-Etsu (ZnO coated with a silicone-grafted acrylic polymer dispersed in cyclodimethylsiloxane); of ZnO marketed under the brand name "Escalol Z100" by ISP (ZnO treated with alumina dispersed in a copolymer mixture of ethylhexyl methoxycinnamate / PVP-hexadecene methicone); of 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).

[0099] Preferred coatings for zinc oxide preferably include one or more of the following: hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl, hexyl dimethicone, hydrogenodimethicone and / or triethoxycaprylysilane.

[0100] According to preferred embodiments of this disclosure, zinc oxide may be in the form of wafers, and may be coated or uncoated. Suitable 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. Preferably, the zinc oxide wafers useful according to this disclosure (1) have a median specific area of ​​more than 25 square meters per gram, preferably greater than 30 square meters per gram, and / or (2) are transparent (i.e., transmission >30% at 600 nm). Suitable examples of such wafer forms may also be found in US Patent 11,608,275.

[0101] Suitable examples of other coated oxides include, but are not limited to, coated oxides preferably having amphiphilic properties such as:

[0102] - titanium oxides coated with cetyl phosphate and silica, such as the product " Eusolex T-EASY » from Merck;

[0103] - titanium oxides coated with polyglyceryl-10 oleate and stearic acid, such as as “MTY-200STW” from Tayca;

[0104] - zinc oxides coated with polyglyceryl-10 oleate and isostearic acid, such as as “MZY-505EXW” from Tayca;

[0105] - titanium oxides coated with polysorbate 80 and isostearic acid, such as " Tayca's MT-10EXW; and

[0106] - zinc oxides coated with polysorbate 80 and isostearic acid, such as " Tayca's MZY-304EXW.

[0107] Preferably, at least one ultraviolet (UV) attenuating physical material is present in the compositions of this disclosure in an amount of at least 5% by weight, preferably at least about 10% by weight, preferably at least about 12% by weight, preferably at least about 14% by weight, and preferably at least about 15% by weight, the upper end of the range of at least one physical ultraviolet (UV) attenuating material present preferably being about 40% by weight (e.g. about 5 to 40%, about 10 to 40%, about 12 to 40%, etc.), preferably about 30% by weight (e.g. about 5 to 30%, about 10 to 30%, about 12 to 30%, etc.), preferably about 25% by weight (e.g. about 5 to 25%, about 10 to 25%, about 12 to 25%, etc.), and preferably about 20% by weight (e.g. about 5 to 20%, about 10 to 20%, about 12 to 20%, etc.), all weights being based on the total weight of the composition.

[0108] According to preferred embodiments, the compositions of this disclosure contain a UV-absorbing system containing essentially one or more physical ultraviolet (UV) attenuation material(s) as defined above. Additional sun protection agents

[0109] According to preferred embodiments of this disclosure, compositions optionally further comprising at least one additional UV filter (in addition to at least one physical ultraviolet (UV) attenuating material) selected from the group consisting of organic UV filters are provided. However, as noted above, preferred embodiments of this disclosure include compositions of this disclosure containing a UV-absorbing system containing little or no UV filter as defined above.

[0110] The additional organic UV filter(s) 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.

[0111] 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 methoxyphenyltriazine; 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; the compounds of methylenebis(hydroxyphenylbenzotriazole) as described in applications US 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; derived dimers; Alkylstyrene compounds 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. Preferably, lipophilic organic UV filters are selected from salicylic compounds, dibenzoylmethane compounds, benzylidene camphor compounds; benzophenone compounds; triazine compounds; benzotriazole compounds; as well as other classes of compounds identified herein; and mixtures thereof.

[0112] 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.

[0113] 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.

[0114] Suitable anthranilic compounds may include menthyl anthranilates, for example marketed under the brand name "Neo Heliopan MA" by Symrise.

[0115] Examples of dibenzoylmethane compounds include butyl methoxydibenzoylmethane, for example marketed under the brand name "Parsol 1789" by DSM; and isopropyl dibenzoylmethane.

[0116] 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.

[0117] Examples of camphor compounds include benzylidenecamphor derivatives: 3-benzylidene camphor, for example marketed under the brand name "Mexoryl SD" by Chimex; 4-methylbenzylidene camphor, for example marketed under the brand name "Eusolex 6300" by Merck; benzylidene camphor 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.

[0118] 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 dimethoxybenzophenone), 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, benzophenone-12 and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (such as that marketed under the brand name UVINUL A+ by BASF).

[0119] 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.

[0120] Suitable benzotriazole compounds include phenylbenzotriazole derivatives: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, branched and linear; and those described in USP 5240975.

[0121] 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.

[0122] 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 disodium dibenzimidazole tetrasulfonate, such as that marketed under the brand name "Neo Heliopan AP" by Symrise.

[0123] Suitable imidazoline compounds include ethylhexyl dimethoxybenzylidene propionate dioxoimidazoline.

[0124] Examples of bis-benzoazolyl compounds include the compounds described in EP-669 323 and US patent no. 2 463 264.

[0125] 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.

[0126] 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 US patents 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.

[0127] 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.

[0128] Suitable examples of protective polymers and protective silicones include the silicones described in WO 93 / 04665.

[0129] Suitable α-alkylstyrene derived dimers include the dimers described in DE-19855649.

[0130] Examples of 4,4-diarylbutadiene compounds include l,l-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

[0131] If present, at least one additional organic UV filter is preferably present in the compositions of this disclosure in an amount of at least about 1% by weight, preferably at least about 5% by weight, preferably at least about 10% by weight, preferably at least about 12.5% ​​by weight, and preferably at least about 15% by weight, the upper end of the range of the additional UV filter present preferably being about 40% by weight (e.g., about 1 to 40%, about 10 to 40%, about 12.5 to 40%, etc.), preferably about 30% by weight (e.g. about 5 to 30%, about 10 to 30%, about 15 to 30%, etc.), preferably about 25% by weight (e.g. about 5 to 25%, about 10 to 25%, about 15 to 25%, etc.), and preferably about 20% by weight (e.g. about 1 to 20%, about 5 to 20%, about 10 to 20%, etc.), all weights being based on the total weight of the composition.

[0132] According to preferred embodiments, the compositions of this disclosure comprise 10% or less by weight relative to the total weight of the composition of such optional additional UV filters, preferably less than 7.5% by weight relative to the total weight of the composition, preferably less than 5% by weight relative to the total weight of the composition, preferably less than 3% by weight relative to the total weight of the composition, and preferably less than 1% by weight relative to the total weight of the composition.

[0133] According to preferred embodiments, the compositions of this disclosure further comprise at least one additional organic UV filter selected from the group consisting of 4-bis-{ [4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-ethylhexyloxyphenol methoxyphenyl triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate, octocrylene, and mixtures thereof.In such embodiments, the UV-absorbing system may "consist of" or "consist essentially of" (1) at least one physical ultraviolet (UV) attenuating material and (2) at least one organic UV filter selected from the group consisting of 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-ethylhexyloxyphenol methoxyphenyl triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate, octocrylene, and mixtures thereof.

[0134] However, according to other preferred embodiments, the compositions of this disclosure are "free", "substantially free" or "devoid" as defined above of one or more additional organic UV filters selected from the group consisting of 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-ethylhexyloxyphenol methoxyphenyl triazine), avobenzone (butyl methoxydibenzoylmethane), octisalate (ethylhexyl salicylate), ensulizole (phenylbenzimidazole sulfonic acid), homosalate and octocrylene, preferably two or more, preferably three or more, preferably four or more, or preferably all five of these sunscreens.

[0135] According to preferred embodiments, the compositions in this disclosure are "free", "substantially free" or "devoid", as defined below. above, one or more additional organic UV filters selected from the group consisting of OXYBENZONE (benzophenone-3), OCTINOXATE (ethylhexyl methoxycinnamate), ETHYLHEXYL TRIAZONE, DROMETRIZOLE TRISILOXANE, METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYL PHENOL, DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE, DIETHYLHEXYL BUTAMIDO TRIAZONE, ISOAMYL P-METHOXYCINNAMATE, POLYSILICONE-15, 4-METHYLBENZYLIDENE CAMPHOR, PHENYL DIBENZIMIDAZOLE DISODIUM TETRASULFONATE, METHOXYPROPYLAMINO CYCLOHEXENYLIDENE METHOXYETHYLCYANOACETATE, 4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), preferably of two or more, preferably of three or more, preferably of four or more, etc., and preferably "free", "substantially free" or "devoid" of all of these sunscreens.

[0136] According to preferred embodiments, the compositions of this disclosure are "free", "substantially free" or "devoid" of OXYBENZONE (benzophenone-3) and / or OCTINOXATE (ethylhexyl methoxycinnamate) and / or 4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine).

[0137] According to preferred embodiments, the UV-absorbing system of compositions of this disclosure may "consist of" or "consist essentially of" at least one physical ultraviolet (UV) attenuating material.

[0138] According to preferred embodiments, this disclosure envisages omitting one or more of the specific UV filters mentioned above from the UV-absorbing system of the compositions of this disclosure. By way of example, octocrylene and / or octinoxate may be omitted from the compositions. A similar omission of one or more of the specific UV filters mentioned is thus envisaged. Oil

[0139] According to this disclosure, emulsion compositions comprising at least one oil are proposed. “Oil” means a substance that is hydrophobic and lipophilic, and that is a liquid at approximately room temperature (20 to 25 °C) and at approximately atmospheric pressure (760 mm Hg).

[0140] Suitable oils include volatile and / or non-volatile oils. These oils may be any acceptable oil, including, but not limited to, silicone oils and / or hydrocarbon oils.

[0141] According to certain embodiments, the compositions of this disclosure preferably comprise one or more volatile silicone oils. Examples These volatile silicone oils include linear or cyclic silicone oils with 2 to 7 silicon atoms, these silicones being optionally substituted with alkyl or alkoxy groups of 1 to 10 carbon atoms. Specific oils that may be used in disclosure include octamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and mixtures thereof. Other volatile oils that may be used include KF 96A with a viscosity of 6 cSt, a commercial product from Shin Etsu with a flash point of 94 °C. Preferably, volatile silicone oils have a flash point of at least 40 °C.

[0142] Non-limiting examples of volatile silicone oils are listed in Table 1 below.

[0143] [Tables 1] Compound Flash Point (°C) Viscosity (cSt) Octyltrimethicone 93 1.2 Hexyltrimethicone 79 1.2 Decamethylcyclopentasiloxane 72 4.2 (cyclopentasiloxane or D5) Octamethylcyclotetrasiloxane (cyclotetramethylsiloxane or D4) 55 2.5 Dodecamethylcyclohexasiloxane (D6) 93 7 Decamethyltetrasiloxane (L4) 63 1.7 KF-96 A from Shin Etsu 94 6 PDMS (polydimethylsiloxane) DC 200 (1.5 cSt) from Dow Corning 56 1.5 PDMS DC 200 (2 cSt) from Dow Corning 87 2

[0144] In addition, a linear volatile silicone oil may be used in this disclosure. Suitable linear volatile silicone oils include those described in US Patent No. 6,338,839 and WO03 / 042221. In one embodiment, the linear volatile silicone oil is decamethyltetrasiloxane. In another embodiment, decamethyltetrasiloxane is further combined with another solvent that is more volatile than decamethyltetrasiloxane.

[0145] According to certain embodiments of this disclosure, the composition preferably comprises one or more non-silicone volatile oils and may be selected from volatile hydrocarbon oils, volatile esters, and volatile ethers. Examples of such volatile non-silicone oils include, but are not limited to, Limit volatile hydrocarbon oils having 8 to 16 carbon atoms and their mixtures, and in particular, C8 to Ci6 branched alkanes such as C8 to Ci6 isoalkanes (also known as isoparaffins), isohexadecane, isododecane, isodecane, and, for example, oils sold under the trade names Isopar or Permethyl. Preferably, non-silicone volatile oils have a flash point of at least 40 °C.

[0146] Non-limiting examples of non-silicone volatile oils are given in Table 2 below.

[0147] [Tables2] Compound Flash Point (°C) Isododecane 43 Propylene glycol n-butyl ether 60 Ethyl 3-Ethoxypropionate 58 Propylene glycol acetate methyl ether 46 Isopar L (Cn-Cu isoparaffin) 62 Isopar H (Cn-Cl2 isoparaffin) 56

[0148] According to certain embodiments of this disclosure, the composition comprises at least one non-volatile oil. Examples of non-volatile oils that may be used in this disclosure include, but are not limited to, polar oils such as, for example:

[0149] - esters and ethers, in particular fatty acids, such as oils of formula R1COOR2, in which RI represents the remainder of a fatty acid having from 8 to 29 carbon atoms, and R2 represents a hydrocarbon chain, branched or unbranched, containing from 2 to 30 carbon atoms, such as, for example, Purcellin oil, ethyl oleate, ethyl stearate, isononyl isononanoate, isopropyl myristate, ethyl-2-hexyl palmitate, octyl-2-dodecyl stearate, octyl-2-dodecyl erucate, isostearyl isostearate; hydroxylated esters such as isostearyl lactate, octylhydroxy stearate, octyldodecyl hydroxystearate, diisostearyl malate, triisocetyl citrate, heptanoates, octanoates, fatty alcohol decanoates; polyol esters, such as propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate;Glycerin triesters such as glycerol and C12-C22 fatty acid triesters, preferably C16-C18 fatty acid triesters, preferably C18 fatty acid triesters, such as glycerin and isostearic acid triester (triisostearin), glycerin and stearic acid triester (tristearin), glycerin and oleic acid triester (triolein), glyceryl tripalmitate, glyceryl trilaurate, etc.; and esters of; pentaerythritol such as pentaerythrityl tetraisostearate or dipentaerythrityl pentaisononanoate;

[0150] - ethers containing 10 to 40 carbon atony;

[0151] - liquid C8 to C26 fatty alcohols, for example oleyl alcohol, alcohol cetyl alcohol, stearyl alcohol and cetearyl alcohol;

[0152] - hydrocarbon oils of animal origin, such as perhydrosqualene;

[0153] - vegetable hydrocarbon oils, such as liquid triglycerides of fatty acids having 4 to 10 carbon atoms such as triglycerides of heptanoic or octanoic acid, for example, sunflower, corn, soybean, cucurbit, grapeseed, sesame, hazelnut, apricot, macadamia, ara, sunflower, castor oil, avocado, caprylic / capric acid triglycerides, such as those sold by the Stéarineries Dubois company or those sold under the names Miglyol 810, 812, and 818, by the Dynamit Nobel Company, coco-caprylate / caprate (esterified coconut oil), jojoba oil, shea butter oil; and

[0154] - their mixtures.

[0155] In addition, examples of non-volatile oils that may be used in this disclosure include, but are not limited to, non-polar oils such as branched and unbranched hydrocarbons, in particular petrolatum, paraffin oil, squalane, squalene, hydrogenated polyisobutene, hydrogenated polydecene, polybutene, mineral oil, pentahydrosqualene and mixtures thereof.

[0156] According to certain embodiments of this disclosure, the compositions of this disclosure may include at least one non-volatile silicone oil. Appropriate examples of such silicone oils include, but are not limited to, non-volatile silicone fluids such as, for example, polyalkyl (aryl) siloxanes. Appropriate polyalkyl siloxanes include, but are not limited to, polydimethyl siloxanes, which are designated CTFA dimethicone, polydiethyl siloxane, phenyl trimethicone, trimethyl pentaphenyl trisiloxane, phenyldimethicone, phenyltrimethylsiloxydiphenylsiloxane, diphenyldimethicone, and diphenylmethyldiphenyltrisiloxane, and the siloxanes disclosed in US Patent Application Publication No. 2004 / 0126350.Specific examples of suitable high viscosity silicone oils include, but are not limited to, PCR 15 M 30 (500 cSt) or Wacker Belsil PDM 1000 (1000 cSt) and Dow Corning 200 (350 cSt) (values ​​in parentheses represent viscosities at 25 °C).

[0157] Particularly preferred oils include, but are not limited to, one or more of the following: diisopropyl sebacate, C12-15 alkyl benzoate, phenethyl benzoate, isopropyl lauroyl sarcosinate, diisopropyl adipate, dibutyl adipate, dicaprylyl carbonate, dicaprylate / dicaprate, coco glycerides, caprylic / capric triglyceride, isopropyl myristate, isopropyl palmitate, coco caprylate / caprate, ethylhexyl palmitate, isononyl isononanoate, octyl dodecanol, isohexadecane, isododecane, dicaprylyl ether, C15-19 alkane, and mixtures thereof.

[0158] According to preferred embodiments, at least one oil is present in the compositions of this disclosure in an amount ranging from about 1% to about 50% by weight, more preferably from about 5% to about 40% by weight, and preferably from about 10% to about 35% by weight, based on the total weight of the composition, including all ranges and sub-ranges within those ranges such as, for example, 15% to 40%, 20% to 45%, etc. Aqueous Phase

[0159] According to this disclosure, emulsion compositions comprising an aqueous phase including water are proposed. Water is preferably present in the emulsion compositions of this disclosure in an amount of about 10% to about 80% by weight, preferably about 20% to about 70% by weight, preferably about 35% to about 65% by weight, including all intermediate ranges and sub-ranges, all weights being based on the total weight of the composition.

[0160] Preferably, the emulsion compositions of the present invention are in the form of an emulsion containing an external aqueous phase such as an oil-in-water (O / W) emulsion or a water-in-oil-in-water (W / O / W) emulsion, or an emulsion containing an external oily phase such as a water-in-oil (W / O) emulsion or an oil-in-water-in-oil (W / O / O) emulsion. Preferably, the oily phase may contain silicone oils (for example, Si / O or W / Si emulsion) or hydrocarbon oils.

[0161] The aqueous phase may further comprise at least one water-soluble organic solvent that is liquid at room temperature and atmospheric pressure. For example, such at least one water-soluble organic solvent may include:

[0162] - C1-C5 monoalcohols having a C1-C5 alkane chain and a single functional group hydroxyl (OH). Suitable C1-C5 monoalcohols include methanol, ethanol, propanol, isopropanol, butanol, and mixtures thereof;

[0163] - polyols (compounds having 2 or more hydroxyl groups) having, for example, of 2 to 20 carbon atoms, preferably of 2 to 6 carbon atoms, such as for example glycerol, diglycerol, propylene glycol, isoprene glycol, dipropylene glycol, butylene glycol, hexylene glycol, 1,3-propanediol, pentylene glycol, simple sugars and water-soluble polyalkylene glycols;

[0164] - and their mixtures.

[0165] According to preferred embodiments, at least one water-soluble organic solvent is chosen from the group consisting of ethanol, dipropylene glycol, butylene glycol, propanediol and propylene glycol, and mixtures thereof.

[0166] Where appropriate, the water-soluble organic solvent(s) is / are preferably present in the compositions of this disclosure in an amount ranging from about 0.5 to about 40% by weight, preferably from about 3 to about 30% by weight, and preferably from about 5% to about 20% by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges such as, for example, 2% to 15%, 2% to 25%, 7.5% to 30%, etc. Surfactant component (system)

[0167] According to this disclosure, emulsion compositions comprising a surfactant component are proposed. Generally, acceptable surfactants (emulsifiers) may be selected from ionic emulsifiers, non-ionic emulsifiers, and mixtures thereof.

[0168] “HLB” refers to the “hydrophilic-lipophilic equilibrium” associated with emulsifiers. Specifically, the "HLB" value refers to the ratio of hydrophilic to lipophilic groups in emulsifiers, and also relates to the solubility of the emulsifiers. "Low HLB emulsifiers (surfactants)" have an HLB value below 8. These emulsifiers are more soluble in oils (lipophilic material) and are more suitable for use in water-in-oil (W / O) emulsions. "High HLB emulsifiers (surfactants)" have an HLB value above 8 and are more soluble in water (hydrophilic material) and are more suitable for oil-in-water (O / W) emulsions.

[0169] By way of example, the following emulsifiers have been reported as having the following HLB values:

[0170] Propylene glycol isostearate HLB = 2.5;

[0171] Glyceryl stearate HLB = 3.8;

[0172] Sorbitan isostearate HLB = 4.7;

[0173] Oleth-2 HLB = 4.9;

[0174] Steareth-2 HLB = 4.9;

[0175] Glyceryl laurate HLB = 5.2;

[0176] Ceteth-2 HLB = 5.3;

[0177] Methyl glucose sesquistearate HLB = 6.6;

[0178] Steareth-20 HLB = 15.3;

[0179] Ceteth-30 HLB = 16.5;

[0180] C12-13 pareth-23 HLB = 16.7;

[0181] Polysorbate 20 HLB = 16.7;

[0182] Laureth-23 HLB = 16.9;

[0183] PEG-100 stearate HLB = 18.8; and

[0184] Sodium lauryl sulfate HLB = 40.

[0185] According to preferred embodiments, the compositions of this disclosure include a surfactant component comprising at least one surfactant that has an HLB value greater than 8 and at least one surfactant that has an HLB value less than 8.

[0186] According to preferred embodiments, one or more of the surfactants are a fatty alcohol, a fatty acid or an ester thereof, optionally alkoxylated (ethoxylated, propoxylated, etc.), glyceryl and / or pegylated. Fatty acids correspond to the formula R-COOH and fatty alcohols correspond to the formula R-OH, in which R designates a saturated or unsaturated hydrocarbon radical having preferably from 7 to 45 carbon atoms, preferably from 9 to 35 carbon atoms, preferably from 15 to 35 carbon atoms, preferably from 15 to 21 carbon atoms, and preferably from 16 to 18 carbon atoms. Examples include lauric acid / alcohol, stearic acid / alcohol, oleic acid / alcohol, behenyl acid / alcohol, cetyl acid / alcohol and mixtures thereof (including cetearyl compounds).

[0187] Suitable surfactants / emulsifiers include ethoxylated fatty acids or alcohols, ethoxylated fatty acids, partial glycerides of ethoxylated fatty acids or alcohols, glycerolized fatty acids or alcohols, and mixtures thereof.

[0188] Suitable alkoxylated fatty alcohols include, for example, the addition products of ethylene oxide with lauryl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Laureth-2 to Laureth-250); the addition products of ethylene oxide with behenyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Beheneth-2 to Beheneth-250); the addition products of ethylene oxide with cetearyl alcohol (mixture of cetyl alcohol and stearyl alcohol), in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Ceteareth-2 to Ceteareth-250 such as, for example, Ceteareth-33); the addition products of ethylene oxide with cetyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the names CTFA Ceteth-2 to Ceteth-250 such as, for example, Ceteth-30);the addition products of ethylene oxide with stearyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Steareth-2 to Steareth-250 such as, for example, and Steareth-20); the addition products of ethylene oxide with isostearyl alcohol, in particular those containing from 2 to 250 oxyethylenated groups (having the CTFA names Isosteareth-2 to Isosteareth-250); and their mixtures, in which the amount of alkoxylation preferably ranges from 2 to 250, and preferably from 5 to 200, including all intermediate ranges and sub-ranges including, for example, 10 to 100, 50 to 150, etc.;

[0189] Suitable alkoxylated fatty acids include, for example, the addition products of ethylene oxide with lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, in particular those containing from 2 to 250 oxyethylenated groups, such as, for example, PEG-2 to PEG-50 laurates (having CTFA names: PEG-2 laurate to PEG-50 laurate); PEG-2 to PEG-50 palmitates (having CTFA names: PEG-2 palmitate to PEG-50 palmitate); PEG-2 to PEG-250 stearates (having CTFA names: PEG-2 stearate to PEG-250 stearate such as PEG-100 stearate and PEG-200 stearate); PEG-2 to PEG-50 palmitostearates; PEG-2 to PEG-50 behenates (having CTFA names: PEG-2 behenate to PEG-50 behenate); and mixtures thereof, wherein the amount of alkoxylation is preferably from 2 to 250, and preferably from 5 to 200, including all intermediate ranges and sub-ranges including, for example, 10 to 100, 50 to 150, etc.

[0190] Suitable glyceryl fatty acids include, for example, glyceryl stearate, glyceryl oleate and glyceryl caprylate.

[0191] According to preferred embodiments, the surfactant component may further contain or comprise at least one alkyl phosphate surfactant as disclosed, for example, in US patent 9,687,426. Preferably, where appropriate, the alkyl phosphate surfactant is selected from C14-C24 alkyl phosphates, preferably C16-C18 alkyl phosphates, and mixtures thereof. More preferably, they are selected from cetyl phosphate, stearyl phosphate, and cetearyl phosphate. For example, cetyl phosphate is commercially available under the names Amphisol K (Roche), Amphisol A (Roche), Arlatone MAP (Uniqema), and Crodafos MCA (Croda). It should be understood that "alkyl phosphate" includes salts of such compounds as potassium cetyl phosphate.

[0192] Preferred surfactants include at least one surfactant selected from the group of palmitic acid, potassium cetyl phosphate, ceteareth-33, steareth-2, steareth-20, glyceryl stearate and stearic acid.

[0193] Preferably, the surfactant(s) (surfactant component) is / are preferably present in the emulsion compositions of this disclosure in an amount of about 1% to about 20%, preferably about 5% to about 17.5%, preferably about 5% to about 15%, and preferably about 6% to about 12%, by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges. Thickening agent component (system)

[0194] Preferred embodiments of the present invention provide compositions further comprising at least one thickening agent. Suitable thickening agents include any thickening agent, such as, for example, acrylic acid (co)polymers, such as homo- or weight-copolymers. high molecular weight polymers comprising acrylic acid, optionally crosslinked with a polyalkenyl polyether, including certain polymers identified as "carbomers" as well as amphiphilic polymers. Preferably, the thickening agent is selected from the group consisting of at least one polysaccharide chosen from the group consisting of anionic polysaccharides, branched homopolysaccharides, and mixtures thereof. Branched homopolysaccharide

[0195] According to preferred embodiments, the thickening system comprises at least one branched homopolysaccharide thickening agent, preferably non-ionic. Preferably, the at least one branched homopolysaccharide is selected from the group consisting of branched glucans or branched fructans, and may include scleroglucan, amylopectin, glycogen, and mixtures thereof.

[0196] Scleroglucan gums are branched homopolysaccharides of microbial origin produced by a Sclerotium-type fungus, in particular Sclerotium rolfsii, consisting of glucose motifs.

[0197] The appropriate scleroglucan gums may or may not be modified. Preferably, the scleroglucan gums used in the compositions of this disclosure are not modified.

[0198] Appropriate examples of commercial scleroglucan gum products include, but are not limited to, products sold under the name ACTIGUM CS, in particular ACTIGUM CS 11, by SANOFI BIO INDUSTRIES and under the name AMIGUM or AMIGEL by ALBAN MULLER INTERNATIONAL. Other scleroglucan gums, such as those treated with 0.5 to 10% glyoxal, as described in French patent application no. 2,633,940, may also be used.

[0199] According to preferred embodiments, at least one branched homopolysaccharide is present in the compositions of this disclosure in an amount (active material) of 0.1 to 10% by weight, relative to the total weight of the composition, preferably 0.15 to 5% by weight, preferably about 0.2% to about 3%, and preferably about 0.2% to about 2% by weight, including all intermediate ranges and sub-ranges. Anionic polysaccharides

[0200] According to preferred embodiments, the thickening system preferably comprises at least one thickening agent that is at least one anionic polysaccharide thickening agent. The anionic polysaccharide thickening agents may be homopolysaccharides or heteropolysaccharides, and comprise at least one saccharide unit including a substituent that is anionic at pH 7. Suitable substituents that are anionic at pH 7 may include, for example, Carboxylic acids. Suitable anionic polysaccharide thickening agents include anionic polysaccharide gums.

[0201] Appropriate examples of anionic polysaccharide gums include, but are not limited to, polysaccharide gums produced by microorganisms; polysaccharide gums isolated from algae; and polysaccharide gums from higher plants, such as homogeneous polysaccharide gums, modified or unmodified, in particular celluloses, carrageenans, gellans, agars, xanthan gums, and alginates. In general, compounds of this type that may be used in the compositions of this disclosure may be found in Kirk-Othmer's Encyclopedia of Chemical Technology, Third Edition, 1982, Volume 3, pp. 896–900, and Volume 15, pp. 439–458, and in Polymers in Nature by E.A. MacGregor and C.T. Greenwood, published by John Wiley & Sons, Chapter 6, p. 240-328, 1980, in the publication by Robert L.Davidson entitled Handbook of Water-Soluble Gums and Resins published by McGraw Hill Book Company (1980) and in Industrial Gums - Polysaccharides and their Derivatives, edited by Roy L. Whistler, Second Edition, published by Academie Press Inc. Preferred polysaccharide thickening agents include carboxymethylcellulose, carrageenan, xanthan gum, and mixtures thereof.

[0202] According to preferred embodiments, at least one anionic polysaccharide is present in the compositions of this disclosure in an amount (active material) of 0.1 to 10% by weight, relative to the total weight of the composition, preferably 0.15 to 5% by weight, preferably about 0.2% to about 3%, and preferably about 0.2% to about 2% by weight, including all intermediate ranges and sub-ranges.

[0203] Preferably, the thickening agent(s) is / are present in the compositions of the present invention in total combined amounts ranging from about 0.1 to about 20% by weight, preferably from 0.2 to 15% by weight, preferably from 0.2 to 10%, preferably from 0.3 to 5% by weight, and preferably from 0.3 to 2% by weight, all weights being based on the weight of the composition as a whole, including all intermediate ranges and sub-ranges such as, for example, 0.1 to 1.5%, 2 to 20%, 10 to 20%, etc.

[0204] According to preferred embodiments, (1) the thickening agent(s) and (2) the ultraviolet (UV) attenuating physical material(s) are present in the compositions of this disclosure in a weight percentage ratio of about 1:20 to about 1:75, preferably about 1:25 to about 1:60, and preferably about 1:27 to about 1:46, including all intermediate ranges and sub-ranges, such as, for example, 1:20 to 1:50, 1:23 to 1:55, 1:30 to 1:45, etc., all weights being based on the weight percentage of the ultraviolet (UV) attenuating physical material(s). and the weight percentage of the thickening agent(s) present in the composition. Preferably, a higher weight percentage of the physical ultraviolet (UV) attenuating material(s) than of the thickening agent(s) is present in the compositions.

[0205] According to preferred embodiments, the total solids content in the compositions of this disclosure preferably ranges from about 3% to about 50% by weight, preferably from about 5% to about 40% by weight, preferably from about 7% to about 35% by weight, and preferably from about 9% to about 27% by weight, all weights being based on the total weight of the composition. Antioxidants

[0206] According to preferred embodiments of this disclosure, the compositions of this disclosure may optionally further include at least one antioxidant. Examples of such antioxidants include, but are not limited to, polyphenols, vitamins, retinoids, stylbenoids, ascorbic acid, or their derivatives. The antioxidants may be dispersed or dissolved in the oil or aqueous phases.

[0207] Appropriate specific examples of antioxidants include, but are not limited to, flavones, flavanones, flavans, flavanols, flavonols, luteolin, baicalin, quercetin, apigenin, hesperetin, hesperidin, naringenin, piecid, baicalein, ascorbic acid (vitamin C), ascorbyl glucoside, ascorbyl palmitate, tocopherol (vitamin E), tocopheryl acetate, retinol, resourcinol, caffeic acid, caffeine, niacinamide, (octyl) methoxycrylene (SolaStay SI), diethylhexyl 2,6-naphthalate (DEHN) (Corapan TQ), phenylethyl benzoate, Butylloctyl salicylate (HallBrite BHB), diethylhexyl syringylidene malonate (Oxynex ST), polycrylene (polyester-8), hexadecyl benzoate, butylloctyl benzoate, and mixtures thereof. Additional optional ingredients

[0208] The compositions of this disclosure may also optionally include at least one additional additive or auxiliary commonly used in cosmetic compositions and known to a person skilled in the art as being suitable for incorporation in such compositions. Such additives or auxiliaries may be selected from film-forming agents, coloring agents (e.g., dyes and pigments), waxes, thixotropic agents (e.g., clays), fillers, preservatives, perfumes, antioxidants, free radical scavengers, spreading agents, dispersing agents, antifoaming agents, neutralizing agents, stabilizing agents, active ingredients selected from essential oils, moisturizing agents, vitamins, active ingredients, proteins, ceramides, plant extracts, fibers and the like, wetting agents and mixtures thereof. However, preferably, the compositions in this disclosure are "free", "substantially free" or "devoid" of such additives.

[0209] A person skilled in the art shall ensure that the optional additional additives are chosen and / or their quantity so that the advantageous properties of the composition as disclosed are not, or are not substantially, compromised by the envisaged addition.

[0210] It goes without saying that the composition of the disclosure must be cosmetically or dermatologically acceptable, that is, it must contain a physiologically acceptable, non-toxic carrier. The composition may be in any pharmaceutical form normally used in the cosmetic and dermatological fields that is suitable for topical administration as mentioned above.

[0211] These auxiliary additives may be present in the composition in a proportion of 0% to 99% (such as 0.01% to 90%) relative to the total weight of the composition and furthermore such as 0.1% to 50% by weight (where appropriate), including all intermediate ranges and sub-ranges.

[0212] In accordance with this disclosure, the compositions of this disclosure may be a standalone product (for use alone), or they may be a product for use in conjunction with another composition; for example, a protective base composition (makeup base), a colored coating composition, or a varnish protectant composition (topcoat). It should be understood that when compositions of this disclosure are applied to keratinous materials in the form of any such composition, such application may include one or more coats of the product.Thus, for example, the application of at least one color layer composition may include one or more color layers; the application of at least one topcoat composition may include one or more topcoats; the application of at least one basecoat composition may include one or more basecoats. Preferably, such basecoat, color layer, and topcoat compositions contain three or fewer layers of compositions, preferably two or fewer layers of compositions, and preferably only one layer of compositions.

[0213] During the application of the compositions of this disclosure, the base coat (if any) is typically applied directly to the keratinous material, the color coat is typically applied either directly to the keratinous material (if no base coat is present), or to a previously applied base coat, and the top coat (if any) is typically applied to a color coat.

[0214] According to preferred embodiments of this disclosure, processes for treating, protecting, enhancing the appearance, caring for and / or making up a keratinous material by applying compositions of this disclosure to the keratinous material in sufficient quantity to treat the keratinous material, improve its appearance, care for it and / or make it up, are proposed.

[0215] Preferably, the "makeup" of the keratinous material includes the application of a composition comprising at least one coloring agent to the keratinous material in sufficient quantity to provide color and / or an optical effect to the keratinous material.

[0216] Preferably, the "protection" of the keratinous material includes the application of a composition from this disclosure to protect the keratinous material from damage resulting from exposure to UV rays.

[0217] According to the preceding embodiments, the compositions of this disclosure are applied topically to the keratinous material in a sufficient quantity to treat, improve the appearance of, care for, and / or conceal the keratinous material. The compositions can be applied to the desired area as needed, preferably once or twice daily, more preferably once daily, and then preferably allowed to dry before being subjected to contact such as with clothing or other objects (e.g., clothing or a top coat). Preferably, the composition is allowed to dry for approximately 1 minute or less, more preferably for approximately 45 seconds or less.

[0218] According to preferred embodiments of this disclosure, methods for producing fluid emulsion compositions comprising at least one ultraviolet (UV) attenuating physical material are provided. These methods combine at least one UV attenuating physical material, at least one high-HLB surfactant, at least one low-HLB surfactant, and at least one polysaccharide selected from the group consisting of anionic polysaccharides, branched homopolysaccharides, and mixtures thereof, during the formation of the compositions to produce fluid emulsion compositions. Preferably, the compositions are non-greasy and / or non-whitening (i.e., the compositions do not leave white residue) upon application. Preferably, the compositions provide broad-spectrum UV protection. Preferably, the compositions provide SPF protection of at least 25, preferably at least 30.Preferably, the compositions also include at least one antioxidant.

[0219] This disclosure also considers kits and / or pre-packaged materials suitable for use by the consumer containing one or more compositions as described herein, alone or in combination with consumer care products such as makeup products like primers, top coats, makeup removers, etc. The packaging and application device for any subject of the disclosure may be selected and manufactured by professionals based on their general knowledge, and adapted according to the nature of the composition to be packaged. Indeed, the type of device to be used may be particularly linked to the consistency of the composition, especially its viscosity; it may also depend on the nature of the constituents present in the composition, for example the presence of volatile compounds.

[0220] Unless otherwise stated, all numbers expressing quantities of ingredients, reaction conditions, etc., used in the patent memorandum and claims are to be understood as modified in all cases by the term "approximately." Accordingly, unless otherwise stated, the numerical parameters presented in the following patent memorandum and the attached claims are approximations that may vary depending on the desired properties that are sought to be obtained through this disclosure.

[0221] Although the numerical ranges and parameters defining the general scope of disclosure are approximations, the numerical values ​​shown in the specific examples are reported as accurately as possible. However, every numerical value inherently contains some error that necessarily results from the standard deviation found in its respective measurements. The following examples are intended to illustrate disclosure without, however, limiting its scope. Percentages are given on a weighted basis. EXAMPLES

[0222] Example 1 - Inventive oil-in-water sunscreen composition --

[0223] [Tables3] Ingredients Quantity or range UV attenuating physical materials Approximately 10% to approximately 25% High and low HLB surfactants 3.0% Emollients 22.1% Water-miscible oils 8.3% Thickening system (anionic polysaccharide and nonionic branched homopolysaccharide) Approximately 0.2% to approximately 3% Preservatives 0.7% Other ingredients (actives, vitamins, fillers) 9.45% Water QS

[0224] An example of a process for preparing the basic oil-in-water sunscreen composition of Table 1 includes grinding the physical UV attenuating materials in an oily phase composed of emollients under high shear at with the aid of a homogenizer. A preferred temperature for grinding UV attenuating physical materials can be above 50 degrees Celsius. Oil-dispersible or oil-soluble materials can be combined either before or after grinding the UV attenuating physical materials. Water-dispersible, water-soluble, or water-miscible materials can be combined into a single phase and added to the oil phase under high shear. Alternatively, the oil phase can be added to the aqueous phase. Furthermore, additional materials can be added before or after combining the aqueous and oil phases. The combined oil and aqueous phases are cooled along with the mixture to room temperature.

[0225] Example 2 - Influence of physical UV attenuation materials and the thickening system for oil-in-water sunscreen compositions

[0226] Table 2 below discloses oil-in-water sunscreen compositions prepared from the basic composition in Example 1, in which the amount and ratio of UV attenuating physical materials, anionic polysaccharide and nonionic branched homopolysaccharide have been varied.

[0227] The microscopic emulsion quality of the prepared compositions was measured by examining approximately 2 to 20 mg of the composition under a microscope at a total magnification of 100x or higher. Emulsion quality was assessed based on the visual appearance of the emulsion, in which good emulsions exhibited tight edges, relatively monodisperse oil droplets, and little or no aggregation of oil droplets or particles. Poor emulsions exhibited loose edges, polydispersity of the oil droplets, and / or aggregation of oil droplets or particles.

[0228] Sensory evaluation was carried out on the compositions in Table 4 on the palmar forearm, paying particular attention to the sensory characteristics of spreadability (smoothness) and non-greasy or non-residual feel on the skin. Compositions offering a "good" feel are exemplary of pleasant application, while compositions offering a "bad" feel lack pleasant application.

[0229] [Tables4] Inventive Example 1 Inventive Example 2 Inventive Example 3 Inventive Example 4 Comparative Example 1 Comparative Example 2 Physical UV attenuation materials 18% 20% 22.7% 20% 20% 20% Zinc oxide and titanium dioxide ratio 85:15 85:15 85:15 75:25 85:15 85:15 Xanthan gum (anionic polysaccharide) 0.15% 0.15% 0.15% 0.30% 0 0.45% Scleroglucan (nonionic branched homopolysaccharide) 0.30% 0.30% 0.30% 0.15% 0.45% 0 Emulsion quality Microscopic Good Good Good Good Mediocre Good Stability Good Good Good Good SOSO Sensation Good Good Good Good Mediocre: poor spreading Mediocre: stringy

[0230] Comparative example 1 gave poor emulsion quality, which demonstrated the importance of compositions containing at least one anionic polysaccharide and one non-ionic branched homopolysaccharide.

[0231] Comparative examples 1 and 2 offer an unpleasant sensation when applied to the skin, which demonstrates the importance of combining at least one anionic polysaccharide and at least one non-ionic branched homopolysaccharide.

[0232] Example 3 - Influence of the thickening system and the surfactant system on the composition of oil-in-water sunscreen

[0233] Table 3 below discloses oil-in-water sunscreen compositions prepared from the basic composition in Example 1, in which the The thickening system and the surfactant system were varied. The surfactant system Mixture 1 in Table 5 contained steareth-20 (1%), steareth-2 (0.6%), cetearyl alcohol (0.6%), glyceryl stearate (0.7%), and polysorbate 20 (0.7%) and had a combined HLB of approximately 10.9. The surfactant system Mixture 2 in Table 3 contained steareth-20 (1.56%), steareth-2 (0.52%), cetearyl alcohol (0.77%), glyceryl stearate (0.6%), and polysorbate 20 (1.15%), with a combined HLB of approximately 12.5. The stability of the emulsion was measured by storing samples of the composition at temperatures of 4 degrees Celsius and 45 degrees Celsius for a period of up to 12 weeks.An emulsion was considered stable and demonstrating satisfactory stability when the microscopic quality of the emulsion remained good and no significant separation, deposition, coalescence, creaming, or discoloration was observed over a 12-week period at all temperatures.

[0234] [Tables5] Example Physical Materials for UV Attenuation ZnO:TiO2 Ratio Xanthan Gum Additional Aqueous Thickener (0.3%) Surfactant System Stability Inventory Ex. 1 18% 85:15 0.15% Scleroglucan Mixture 1 OK 12 weeks Inventory Ex. 5 18% 85:15 0.15% Scleroglucan Mixture 2 OK 12 weeks Comparative Ex. 3 18% 85:15 0.15% Crosslinked Acrylate / C10-30 Alkyl Acrylate Polymer Mixture 1 Failure after 2 weeks Comparative Ex. 4 18% 85:15 0.15% Polymer C10-30 ALKYL ACRYLATE CROSS-CUT Mixture 2 Failure after 2 weeks Comparative example 5 18% 85:15 0.15% HYDROXYETHYL ACRYLATE COPOLYMER / SODIUM ACRYLOYLDIMETHYL TAURATE Mixture 1 Failure at 6 weeks Comparative example 6 18% 85:15 0.15% HYDROXYETHYL ACRYLATE COPOLYMER Mixture 2 Failure at 8 weeks CRYLATE / SODIUM A CRYLOYL-DIMETHYL TAURATE Comparative example 7 18% 85:15 0.15% Gellan gum Mixture 2 Unable to form an emulsion

[0235] Comparative Examples 3 to 7 demonstrated the importance of combining at least one anionic polysaccharide and at least one nonionic branched homopolysaccharide in a composition, since none of the additional aqueous thickeners added in Comparative Examples 3 to 7 contained any nonionic branched homopolysaccharide and were inferior. Comparative Examples 5 and 6 demonstrated that the surfactant mixture and the HLB value of the emulsifying system can impact emulsion stability; only inventive examples 1 and 5, which both contained at least one anionic polysaccharide and at least one nonionic branched homopolysaccharide, demonstrated satisfactory emulsion stability.

[0236] Based on the results presented in Table 1, Table 2, and Table 3, only oil-in-water sunscreen compositions with UV-attenuating physical materials, a surfactant system comprising high- and low-HLB surfactants, and a thickening system comprising at least one anionic polysaccharide and at least one nonionic branched homopolysaccharide demonstrated acceptable sun protection factor, stability, and microscopic emulsion quality. While not bound by theory, it is thought that UV-attenuating physical materials are unexpectedly better supported in oil-in-water sunscreen compositions when a thickening system comprising both at least one anionic polysaccharide and at least one nonionic branched homopolymer is present, particularly when high- and low-HLB emulsifiers are also present.

[0237] Example 4 - Examples of oil-in-water sunscreen compositions containing an anionic polysaccharide and a nonionic branched homopolysaccharide

[0238] [Tableauxô] Ingredient % by weight Treated zinc oxide 17% Treated titanium dioxide 5.7% High and low HLB emulsifiers 3% Emollients 25.5% Polyhydroxystearic acid 2% Preservatives 0.7% Xanthan gum (anionic polysaccharide) 0.15% Scleroglucan (nonionic branched homopolysaccharide) 0.3% Other ingredients (vitamins, powders, actives, pH adjusters) 8.8% Glycols 8% Water QS SPF in vivo (SPF on label n=5) 56

Claims

Demands

1. Fluid emulsion composition comprising: a) a UV-absorbing system comprising at least one ultraviolet (UV) attenuating physical material, preferably at least one metal oxide, preferably at least one metal oxide selected from titanium, chromium, zinc, tin, alumina, cerium and / or iron oxides; b) a surfactant system comprising at least one high hydrophilic-lipophilic equilibrium (HLB) surfactant and at least one low HLB surfactant; and c) a thickening system comprising at least one anionic polysaccharide thickening agent and at least one nonionic branched homopolysaccharide.

2. Composition according to claim 1, wherein at least one non-ionic branched homopolysaccharide is scleroglucan.

3. Composition according to claim 1, wherein at least one anionic polysaccharide thickening agent is xanthan gum.

4. Composition according to claim 1, wherein the UV attenuating physical material comprises zinc oxide and titanium dioxide.

5. Composition according to claim 1, wherein (1) at least one anionic polysaccharide thickening agent and at least one nonionic branched homopolysaccharide and (2) at least one ultraviolet (UV) attenuating physical material are present in a weight ratio of about 1:27 to about 1:

46.

6. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material is present in the composition in an amount of at least 5% by weight relative to the total weight of the composition, preferably from about 5% to about 40% by weight relative to the total weight of the composition.

7. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material is surface-treated with a surface treatment agent, preferably the surface treatment agent comprising at least one of amino acids, beeswax, fatty acids, fatty acid salts, fatty alcohols, anionic surfactants, lecithin compounds, alkoxides metallic, polyethylene, silicones, proteins, alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina, glycerol and mixtures thereof.

8. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material comprises zinc oxide and / or titanium dioxide, preferably zinc oxide coated with a coating agent, preferably the coating agent comprising at least one of hydrated silica, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone, hydrogen dimethicone, triethoxycaprylylsilane, and mixtures thereof.

9. Composition according to claim 1, wherein at least one ultraviolet (UV) attenuating physical material has an average primary particle size of 1 nm to 500 nm, preferably 5 nm to 250 nm, preferably 10 nm to 100 nm, preferably 10 nm to 50 nm, preferably 20 nm to 40 nm.