Tinted sunscreen compositions, manufacturing process of a tinted sunscreen composition, and use of a tinted sunscreen composition

Abstract

Tinted Sunscreen Compositions, Process for Manufacturing a Tinted Sunscreen Composition, and Use of a Tinted Sunscreen Composition. The invention relates to tinted sunscreen compositions comprising a high concentration of pigments in the form of a stable inverse water-in-oil (W / O) emulsion with a high Sun Protection Factor (SPF). The present invention also relates to a process for manufacturing a tinted sunscreen composition and to the use of a tinted sunscreen composition. Figure for abstract: none

Description

Title of the invention: Tinted sunscreen compositions, process for manufacturing a tinted sunscreen composition, and use of a tinted sunscreen composition FIELD OF INVENTION

[0001] The invention relates to tinted sunscreen compositions comprising a high concentration of pigments and a high sun protection factor (SPF), in the form of a stable inverse water-in-oil (W / O) emulsion. The present invention also relates to a method for manufacturing a tinted sunscreen composition and to the use of a tinted sunscreen composition. CONTEXT OF THE INVENTION

[0002] Photoprotection of keratinous materials, including skin and hair, is considered of great importance to ensure protection against sun damage, sunburn, photoaging, and to reduce the risk of developing skin cancer caused by exposure to ultraviolet (“UV”) radiation. There are generally two types of cosmetic UVA / UVB sunscreen compositions used to achieve photoprotection: inorganic UV filters and organic UV filters.

[0003] The degree of UV protection offered by a sunscreen composition is directly related to the quantity and type of UV filters it contains. In particular, sunscreen compositions must offer good protection against the sun's rays, one measure of which is the Sun Protection Factor (SPF) value, a desirable balance between UVA and UVB protection, especially a minimal UVA protection factor, while also providing a satisfactory sensory experience, such as a smooth but non-greasy feel upon application.

[0004] Furthermore, it is also desirable to produce a sunscreen composition that not only provides photoprotection to keratinous materials but also offers additional properties. For example, it is desirable to produce a tinted sunscreen composition with a high SPF and UVA / UVB protection, with the ability to tint the skin to correct imperfections, preferably with high coverage that is able to adapt to different skin tones.

[0005] Furthermore, the market for tinted sunscreen compositions is growing rapidly and becoming increasingly important, and consumers are looking for innovations, such as a sunscreen composition with makeup properties or an after-application appearance.

[0006] The degree of coverage offered by a tinted sunscreen composition, when applied to the skin, is directly related to its technology and the amount of pigments present in the composition.

[0007] However, combining sunscreen and tinting properties with other sensory benefits such as a dry touch, good spreadability, and the presence of various raw materials (fillers, emollients) results in a complex system with a large quantity of UV filters and pigments, which is difficult to achieve, particularly because the presence of large quantities of colored pigments and UV filters in tinted sunscreen compositions leads to stability problems in the formulation, notably pigment migration on the surface of the composition, even creating discoloration spots on said surface. These problems intensify in darker shades of tinted sunscreen compositions.

[0008] To overcome the drawbacks of the prior art, the present inventors have obtained tinted sunscreen compositions with high SPF and UVA / UVB protection containing a high concentration of pigments, having the desired color coverage when applied to the skin, which is stable, does not exhibit migration and separation of colored pigments on the surface of the composition.

[0009] In particular, the inventors of the present application have remarkably succeeded in developing a tinted sunscreen composition with a high pigment concentration in the form of a stable reverse emulsion (W / O) with a high SPF, without silicones or harsh sunscreens, while the composition exhibiting good sensory attributes and good stability. This reverse emulsion (W / O) sunscreen allows the ingredients of the composition in the external phase (oil phase) to provide structure to the formula, enabling the dispersion and stabilization of a high pigment concentration. Thus, the synergistic combination of ingredients in the tinted sunscreen composition of the present invention stabilizes the formulation and the high pigment concentration. Summary of the invention

[0010] The tinted sunscreen composition comprises: (a) one or more fillers; (b) one or more surfactants selected from isotridecyl phosphate, laureth-23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and combinations thereof, and mixtures thereof; (c) one or more polymers selected from hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, polyamide-8, C10-30 alkyl polyacrylate, Ci222 alkyl acrylate / hydroxyethyl acrylate copolymer, the (d) ammonium acryloyldimethyltaurate / vp copolymer, sodium polyacrylate, carbomer, aluminum starch octenylsuccinate, acrylate crosslinked polymer / alkyl acrylate C10-3o, and combinations thereof; (e) camauba wax; (f) UV filters selected from organic UV filters, inorganic UV filters, and combinations thereof; and (c) pigments. The present invention also relates to a method for manufacturing a tinted sunscreen composition and to the use of a tinted sunscreen composition.

[0011] Other features and advantages of the present invention will become apparent from the following more detailed description of desirable embodiments which illustrate, by way of example, the principles of the invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The tinted sunscreen composition of the present invention comprises: a. one or more charges; b. one or more surfactants selected from isotridecyl phosphate, laureth-23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and combinations thereof, and mixtures thereof; c. one or more polymers selected from hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, polyamide-8, C10-30 alkyl polyacrylate, CnW hydroxyethyl alkyl acrylate copolymer, ammonium acryloyldimethyltaurate / vp copolymer, sodium polyacrylate, carbomer, aluminum starch octenylsuccinate, C10-30 alkyl acrylate crosslinked polymer, and combinations thereof; d. Camauba wax; e. UV filters selected from organic UV filters, inorganic UV filters, and combinations thereof; and f. pigments.

[0013] In a preferred embodiment, the tinted sunscreen composition comprises one or more fillers selected from disteardimonium hectorite, stearalconium hectorite, quaternium-18 hectorite, quaternium-18 bentonite, silica, silica silylate, and mixtures thereof.

[0014] In a preferred embodiment, the tinted sunscreen composition comprises one or more fillers selected from disteardimonium hectorite, silica, silica silylate, and mixtures thereof.

[0015] In a preferred embodiment, the tinted sunscreen composition comprises the amount of one or more fillers ranging from about 0.05 to about 8% by weight, from about 0.5% to about 7.5%, from about 1% to about 7%, or from about 1% to about 6.5% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0016] In a preferred embodiment, the tinted sunscreen composition comprises the amount of one or more surfactants selected from octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, and mixtures thereof.

[0017] In a preferred embodiment, the tinted sunscreen composition comprises the amount of one or more surfactants ranging from about 0.5 to about 10% by weight, from about 0.5% to about 9.5%, from about 0.5% to about 9%, or from about 1% to about 9% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0018] In a preferred embodiment, the tinted sunscreen composition comprises the amount of one or more polymers selected from hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, polyamide-8, C10-30 alkyl polyacrylate, C10-30 alkyl acrylate copolymer, hydroxyethyl acrylate, ammonium acryloyldimethyltaurate / vp copolymer, crosslinked acrylates / C10-30 alkyl acrylate polymer, and combinations thereof.

[0019] In a preferred embodiment, the tinted sunscreen composition comprises the amount of one or more polymers ranging from about 0.05% to about 10% by weight, from about 0.05% to about 9%, from about 1% to about 8%, from about 1% to about 7%, or from about 1% to about 6% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0020] In a preferred embodiment, the tinted sunscreen composition further comprises camauba wax (Copemicia ceriferd wax) ranging from about 0.5% to about 10% by weight, from about 0.5% to about 8%, from about 1% to about 7%, or from about 1.5% to about 6% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0021] In a preferred embodiment, the tinted sunscreen composition comprises UV filters selected from diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, drometrizole trisiloxane, ethylhexyl salicylate, ethylhexyl triazone, methylene bis-benzotriazolyl tetramethylbutylphenol, octocrylene, phenylzhnidazole sulfonic acid, polyglyceryl-10 laurate, terephthalylidene diamphr sulfonic acid, ethylenediamine disuccinate trisodium, titanium dioxide, zinc oxide, and combinations thereof.

[0022] In a preferred embodiment, the tinted sunscreen composition comprises UV filters selected from diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, drometrizole trisiloxane, ethylhexyl salicylate, ethylhexyl triazone, octocrylene, and mixtures thereof.

[0023] In a preferred embodiment, the tinted sunscreen composition comprises UV filters ranging from about 5% to about 30% by weight, from about 5% to about 28%, from about 6% to about 26%, from about 6% to about 24%, or from about 7% to about 22% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0024] In a preferred embodiment, the tinted sunscreen composition comprises pigments including titanium dioxide, iron oxides, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, alumina, aluminum hydroxide, or mixtures thereof.

[0025] In a preferred embodiment, the tinted sunscreen composition comprises pigments ranging from about 5% to about 30% by weight, from about 5% to about 25%, from about 6% to about 24%, from about 7% to about 22%, or from about 8% to about 21% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0026] In a preferred embodiment, the tinted sunscreen composition further comprises cosmetically acceptable ingredients selected from additional UV filters, active compounds, fatty compounds, additional fillers, a perfume / fragrance, additional polymers, preservatives, solvents, additional surfactants, vitamins, a pH corrector, and mixtures thereof.

[0027] In a preferred embodiment, the tinted sunscreen composition of the present invention has a Sun Protection Factor (SPF) ranging from 40 to 80, preferably from 50 to 70, more preferably from about 50. In various embodiments, the tinted sunscreen composition of the present invention can have a sun protection factor of 40, 45, 50, 55, 60, 65, 70, 75 and 80.

[0028] The tinted sunscreen composition of the present invention is in the form of a water-in-oil (W / O) emulsion.

[0029] The tinted sunscreen composition of the present invention can be used as a daily skin product.

[0030] The present invention also relates to the use of said tinted sunscreen composition for the manufacture of a product intended for the photoprotection of materials keratinous with high SPF and UVA / UVB protection and with high color coverage. Terms

[0031] “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. Charges

[0032] Non-limiting examples of fillers for tinted sunscreen compositions are preferably clay, more preferably organic clays, which could be selected from hydrophobically treated clays and pre-activated clays. Suitable fillers for the tinted sunscreen composition according to the present invention are, for example, montmorillonite, bentonite, or hectorite; particularly selected from disteardimonium hectorite, stearalconium hectorite, quaternium-18 hectorite, and quaternium-18 bentonite.

[0033] Other non-limiting examples of fillers in tinted sunscreen compositions are silica and silica silylate.

[0034] The tinted sunscreen compositions according to the invention include spherical amorphous silica. In some embodiments, the average size of these spherical amorphous silica particles is less than 15.0 µm and more particularly ranges from 3 to 10 µm. The useful spherical amorphous silica particles according to the invention are colorless or white solid particles of any shape, which are insoluble and dispersed in the medium of the composition. The spherical amorphous silica may be coated with a hydrophobic treatment agent, although it is free of such coatings in some embodiments.

[0035] The "silica silylate" according to the present invention is a hydrophobic silica aerogel, as described in WO 2021 / 016680. The term "hydrophobic silica" refers to any silica whose surface is treated with silylation agents, for example, halogenated silanes, such as alkylchlorosilanes, siloxanes, in particular dimethylsiloxanes, such as hexamethyldisiloxane, or silazanes, so as to functionalize the OH groups with Si-Rn silyl groups, for example, trimethylsilyl groups. The preparation of silica aerogel particles hydrophobic particles that have been surface-modified by silylation are found in US Patent No. 7,470,725. In one embodiment, hydrophobic silica aerogel particles surface-modified with trimethylsilyl groups are desirable.

[0036] In a preferred embodiment, one or more fillers are selected from disteardimonium hectorite, stearalconium hectorite, quaternium-18 hectorite, quaternium-18 bentonite, silica, silica silylate, and mixtures thereof.

[0037] A preferred filler according to the present invention includes disteardimonium hectorite, silica and silica silylate, conventionally used in cosmetics or similar.

[0038] The filler in the tinted sunscreen composition of the present invention is preferably present in amounts ranging from about 0.05% to about 8% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition. Surfactants

[0039] The tinted sunscreen composition of the present invention may comprise one or more suitable surfactants. Non-limiting examples of suitable surfactants for the present invention are as follows.

[0040] Useful anionic surfactants in the invention include, for example, carboxylates (sodium 2-(2-hydroxyalkyloxy)acetate), amino acid derivatives (N-acylglutamates, N-acylglycinates or acylsarcosinates), alkyl sulfates, alkyl ether sulfates and their oxyethylenated derivatives, sulfonates, isethionates and N-acylisethionates, taurates and N-acyl N-methyltaurates, sulfosuccinates, alkyl sulfoacetates, phosphates and alkyl phosphates, anionic derivatives of alkyl polyglycoside (acyl-D-galacside uronate), and their combinations.

[0041] Non-limiting examples of useful nonionic surfactants in the invention include, for example, oxyalkylated (more particularly polyoxyethylated) fatty acid esters of glycerol; lauryl inulin carbamate; oxyalkylated fatty acid esters of sorbitan; oxyalkylated fatty acid esters (oxyethylated and / or oxypropylened); polyglyceryl-6 distearate (and) jojoba esters (and) cetyl alcohol (and) polyglyceryl-3 beeswax; oxyalkylated fatty alcohol ethers (oxyethylated and / or oxypropylened); sugar esters, for example sucrose stearate; sugar fatty alcohol ethers, in particular alkyl polyglucosides (APGs) such as decyl glucoside and lauryl glucoside, cetostearyl glucoside optionally in mixture with cetostearyl alcohol, and also arachidyl glucoside, for example in the form of a mixture of arachidyl alcohol, behenyl alcohol and arachidyl glucoside.According to a particular embodiment of the invention, the mixture of the alkyl polyglucoside as defined above with . The corresponding fatty alcohol may be in the form of a self-emulsifying composition. Other examples include lecithins and derivatives (e.g., Biophilic), sugar esters, and sodium stearoyl lactylate.

[0042] Non-limiting examples of fatty acids are chosen from among the higher fatty acids in C12-C22, such as myristic acid, oleic acid, linoleic acid, linolenic acid, lauric acid, palmitic acid, and their combinations.

[0043] Non-limiting examples of cationic surfactants are those that can be positively charged. This surfactant may carry one or more permanent positive charges or may contain one or more functional groups that are cationizable in the composition as disclosed. The cationic surfactant(s) may also be selected from optionally polyoxyalkylated primary, secondary, or tertiary fatty amines, or their salts, and quaternary ammonium salts, and combinations thereof. Fatty amines generally comprise at least one C8-C30 hydrocarbon chain.

[0044] Preferred surfactants may be selected from isotridecyl phosphate, laureth-23, glyceryl stearate, glyceryl oleate, poloxamer 338, potassium cetylphosphate, sodium methyl stearoyl taurate, stearic acid, PEG-8 laurate, sodium dodecylbenzenesulfonate, and combinations thereof.

[0045] The tinted sunscreen composition according to the invention comprises one or more surfactants selected from isotridecyl phosphate, laureth-23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and their combinations and mixtures.

[0046] In a preferred embodiment, the tinted sunscreen composition comprises one or more surfactants ranging from about 0.5% to about 10% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition. Polymers

[0047] Suitable non-limiting polymers for the tinted sunscreen composition according to the invention include, but are not limited to, hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, polyamide-8, C10-30 alkyl polyacrylate, Ci2 22 alkyl acrylate / hydroxyethyl acrylate copolymer, ammonium acryloyldimethyltaurate / VP copolymer, sodium polyacrylate, carbomer, aluminum starch octenylsuccinate, C10-30 alkyl acrylate crosslinked polymer, and mixtures thereof.

[0048] In a preferred embodiment, the tinted sunscreen composition comprises one or more polymers ranging from approximately 0.05% to approximately 10% by weight, y including all intermediate ranges and sub-ranges, relative to the total weight of the composition. Carnauba wax

[0049] As used herein, "carnauba wax" or "Copernicia cerifera wax" refers to solid carnauba wax. Solid carnauba wax is a hard wax scraped from the leaves and leaf stalks of carnauba palms, Copernicia cerifera. Carnauba wax comprises C18-C32 fatty acid esters and C28-C34 alcohol esters, also containing large amounts of hydroxy acid esters and having melting points around 80 and 86 °C.

[0050] In addition, solid carnauba wax generally comprises about 80% to about 85% by weight of fatty esters, about 1% to about 5% by weight of alcohols, about 1% to about 5% by weight of hydrocarbons, about 1% to about 5% by weight of free acids, about 1% to about 6% by weight of resins, about 1% to about 5% by weight of lactic components and about 0.1% to about 2% by weight of moisture.

[0051] In a preferred embodiment, the amount of carnauba wax in the tinted sunscreen composition is at least about 0.5% by weight to about 10% by weight, including all intermediate ranges and sub-ranges relative to the total weight of the tinted sunscreen composition. UV filters

[0052] The tinted sunscreen composition of the present invention comprises one or more organic UV filters selected from organic UV filters, inorganic UV filters, and combinations thereof. As will be readily understood by those skilled in the art, a UV filter is understood to be a material that significantly attenuates ultraviolet radiation.

[0053] In an additional embodiment, the tinted sunscreen composition may further comprise organic UV filters. In an additional embodiment, the tinted sunscreen composition may further comprise an inorganic UV filter.

[0054] In particular, the inorganic UV filter that can be used for the present invention can be active in the UV-A and / or UV-B region. The organic UV filter can be hydrophilic and / or lipophilic.

[0055] The organic UV filter can be solid or liquid. The terms "solid" and "liquid" mean solid and liquid, respectively, at 25 °C under 1 atm.

[0056] The organic UV filter can be chosen from the group 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; screen polymers and silicone screens; 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.

[0057] The inorganic UV filter can be selected from the group of silicon carbides, metal oxides which may or may not be coated, and mixtures thereof. And in some embodiments, the inorganic UV filters are selected from pigments (average size of primary particles: generally from 5 nm to 50 nm, and in some embodiments from about 10 nm to about 50 nm) formed from metal oxides such as, for example, pigments formed from titanium dioxide (amorphous or crystalline in rutile and / or anatase form), iron dioxide, zinc dioxide, zirconium dioxide or cerium dioxide, which are all well-known UV photoprotective agents as such.

[0058] In some embodiments, the inorganic UV filters are selected from titanium dioxide, zinc oxide, and, in some embodiments, titanium dioxide. The inorganic UV filter may be coated or uncoated. With one or more coatings such as 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.

[0059] Suitable non-limiting UV filters of the present invention may be selected from diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, drometrizole trisiloxane, ethylhexyl salicylate, ethylhexyl triazone, methylene bis-benzotriazolyl tetramethylbutylphenol, octocrylene, phenylbenzozimidazole sulfonic acid, polyglyceryl-10 laurate, terephthalylidene diamphr sulfonic acid, ethylenediamine disuccinate trisodium, titanium dioxide, zinc oxide, and mixtures thereof.

[0060] According to the invention, the concentration of UV filters can be between approximately 5% and approximately 30%, including all intermediate ranges and sub-ranges, relative to the total weight of the composition.

[0061] In addition to the one or more UV filters mentioned above, the tinted sunscreen composition of the present invention may further comprise suitable additional UV filters, which are not exhaustive, as follows:

[0062] Oil-soluble organic sunscreen ingredient

[0063] By "oil-soluble organic sunscreen ingredient" is meant any organic compound intended to deflect UV rays, which can be completely dissolved in molecular or miscible form in an oily phase or which can be dissolved in colloidal form (for example, in micellar form) in an oily oily phase.

[0064] Non-limiting examples of oil-soluble organic sunscreen ingredients useful in the invention include, for example, cinnamic derivatives; anthranilates; salicylic derivatives; dibenzoylmethane derivatives; camphor derivatives; benzophenone derivatives; diphenyl acrylate derivatives; triazine derivatives; benzotriazole derivatives; benzalmalonate derivatives, in particular those cited in US patent 5624663; benzimidazole derivatives; imidazolines; bis-benzoazolyl derivatives as described in patents EP669323 and US2463264; p-aminobenzoic acid (PABA) derivatives; methylene bis(hydroxyphenylbenzotriazole) derivatives as described in applications US5237071, US5166355, GB2303549, DE19726184 and EP893119; benzoxazole derivatives as described in patent applications EP0832642, EP1027883, EP1300137 and DE10162844;Alkyl-styrene derived dimers such as those described in patent application DE 19855649; 4,4-diarylbutadienes such as those described in patent applications EP0967200, DE19746654, DE19755649, EP-A-1008586, EPI 133980 and EPI 133981; merocyanine derivatives such as those described in patent applications WO 04 / 006878, WO 05 / 058269 and WO 06 / 032741; and mixtures thereof.

[0065] By way of examples of other suitable oil-soluble sunscreen ingredients, reference may be made to those listed below under their INCI names:

[0066] Cinnamic derivatives:

[0067] Examples of suitable cinnamyl derivatives include, but are not limited to, ethylhexyl methoxycinnamate, isopropyl methoxycinnamate, isoamyl methoxycinnamate, DEA methoxycinnamate, diisopropyl methylcinnamate, glyceryl ethylhexanoate dimethoxycinnamate.

[0068] Dibenzoylmethane derivatives:

[0069] Examples of suitable dibenzoylmethane derivatives include, but are not limited to, isopropyl dibenzoylmethane.

[0070] Salicylic derivatives:

[0071] Examples of suitable salicylic derivatives include, but are not limited to, dipropylene glycol salicylate and TEA salicylate.

[0072] Beta,beta-diphenylacrylate derivatives:

[0073] Examples of suitable beta-diphenylacrylate derivatives include, but are not limited to, etocrylene.

[0074] Benzophenone derivatives:

[0075] Examples of suitable benzophenone derivatives include, but are not limited to, benzophenone-1, benzophenone-2, benzophenone-3 or oxybenzone, benzophenone-4, benzophenone-5, benzophenone-6, benzophenone-8, benzophenone-9, benzophenone-12, n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate or in mixture with octyl methoxycinnamate.

[0076] Benzylidenecamphor derivatives:

[0077] Examples of suitable benzylidenecamphor derivatives include, but are not limited to, manufactured 3-benzylidene camphor, manufactured 4-methylbenzylidene camphor, manufactured polyacrylamidomethyl benzylidene camphor.

[0078] Phenylbenzotriazole derivatives:

[0079] Examples of suitable phenylbenzotriazole derivatives include, but are not limited to, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, or in micronized form in aqueous dispersion.

[0080] Triazine derivatives:

[0081] Examples of suitable triazine derivatives include, but are not limited to, 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(dineopentyl 4'-aminobenzalmalonate)-6-(n-butyl 4'-aminobenzoate)-s-triazine, the symmetrical triazine screening agents described in US Patent 6,225,467, Patent Application WO 2004 / 085412 (see compounds 6 and 9), or the document "Symmetrical Triazine Derivatives" IP.COM Journal, IP.COM Inc., West Henrietta, NY, US (20 September 2004), in particular 2,4,6-tris(biphenyl)-l,3,5-triazines (in particular 2,4,6-tris(biphenyl-4-yl)-l,3,5-triazine and 2,4,6-tris(terphenyl)-l,3,5-triazine), which is included in patent applications WO / 06 / 035000, WO 06 / 034982, WO 06 / 034991, WO 06 / 035007, WO 2006 / 034992 and WO 2006 / 034985).

[0082] Anthranilic derivatives:

[0083] An example of a suitable anthranilic derivative includes, but is not limited to, methyl anthranilate.

[0084] Imidazoline derivatives:

[0085] An example of a suitable imidazoline derivative includes, but is not limited to, ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.

[0086] 4,4-Diarylbutadiene derivatives:

[0087] An example of a suitable 4,4-diarylbutadiene derivative includes, but is not limited to, l-Dicarboxy(2,2'-dimethylpropyl)-4,4-diphenyl-butadiene.

[0088] Benzoxazole derivatives:

[0089] An example of a suitable benzoxazole derivative includes, but is not limited to, 2,4-bis[5-(l-dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl) imino-l,3,5-triazine, and mixtures thereof.

[0090] Preferably, the oil-soluble organic sunscreen ingredient will be selected from bis-ethylhexyloxyphenol methoxyphenyl triazine.

[0091] Water-soluble organic sunscreen ingredient

[0092] By "water-soluble organic sunscreen ingredient" is meant any organic compound intended to shield against UV radiation, which can be completely dissolved in molecular or miscible form in a liquid aqueous phase or which can be dissolved in colloidal form (for example, in micellar form) in a liquid aqueous phase.

[0093] Non-limiting examples of water-soluble organic sunscreen ingredients useful in the invention include, for example, terephthalylidene diamphr sulfonic acid, phenylbenzimidazole sulfonic acid, benzophenone-4, aminobenzoic acid (PABA), 4-bis(polyethoxy)-para-aminobenzoic acid polyethoxyethyl ester (PEG-25 PABA), camphor benzalconium methosulfate, methylene bis-benzotriazolyl tetramethylbutylphenol (Bisoctrizole), phenyl dibenzimidazole tetrasulfonate disodium (Bisdisulizole disodium) and tris-biphenyl triazine; their corresponding derivatives and salts; naphthalene bisimide derivatives such as those described in European patent application EP1990372 A2; and cationic quaternary salts and derivatives of cinnamidoamine such as those described in US patent 5,601,811, and mixtures thereof.

[0094] The salts of the compounds that can be used according to the invention are chosen in particular from among the salts of alkali metals, for example sodium or potassium; the salts of alkaline earth metals, for example calcium, magnesium or strontium; metallic salts, for example zinc, aluminum, manganese or copper; ammonium salts of the formula NH4+; quaternary ammonium salts; the salts of organic amines, for example methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2-hydroxyethyl)amine; lysine or arginine salts. Salts chosen from among sodium, potassium, magnesium, strontium, copper, manganese or zinc salts are preferably used. The sodium salt is preferably used.

[0095] Preferably, the water-soluble organic sunscreen ingredient will be chosen from methylene bis-benzotriazolyl tetramethylbutylphenol, and mixtures thereof.

[0096] Sunscreen ingredient: silica-coated titanium dioxide

[0097] Furthermore, the tinted sunscreen composition of the present invention may comprise a silica-coated titanium dioxide sunscreen ingredient. The " "silica-coated titanium dioxide sunscreen ingredient" refers to spherical beads formed by encapsulating titanium dioxide particles in silica.

[0098] Non-limiting examples of silica-coated titanium dioxide sunscreen ingredients useful in the invention include, for example, silica-coated titanium dioxide, such as silica (and) titanium dioxide having a silica:titanium dioxide composition of about 55:45 and having a particle size of about 2 microns to about 7 microns. Pigments

[0099] In order to provide a tint to the user's skin, the compositions of the present invention may include an inorganic color pigment (i.e. inorganic pigments having at least one inorganic substrate, coating or constituent).

[0100] Suitable inorganic color pigments include any of the various inorganic pigments that impart dye or color in a cosmetic composition, such as iron oxides, ultramarine blue pigments, manganese violet, ferric ferrocyanide and chromium green pigments, pearlescent pigments, effect pigments, and the like. The color pigments may be coated or uncoated; however, in some notable embodiments, uncoated color pigments are used to make the compositions. In some embodiments, the inorganic color pigments include or consist of iron oxide.

[0101] Any of the different cosmetic grades of color pigments is suitable for use in the compositions of the present invention. In some embodiments, the color pigments have an average particle size in a range of about 1 micron to about 100 microns, such as about 1 micron to about 10 microns.

[0102] Non-limiting examples of pigments useful in the composition of tinted sunscreen according to the present invention may include titanium dioxide, iron oxides, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, alumina, aluminum hydroxide, or mixtures thereof.

[0103] The pigments are preferably present in the tinted sunscreen composition according to the invention in an amount of about 5% to about 30% by weight, including all intermediate ranges and sub-ranges, relative to the total weight of the composition. Additional ingredients

[0104] In addition to the essential components described above, the tinted sunscreen composition of the present invention may further comprise any usual cosmetically acceptable ingredient, which may be selected in particular from additional UV filters, active compounds, fatty compounds, fillers, perfumes / fragrances, additional polymers, preservatives, solvents, additional surfactants, vitamins, a pH corrector, and mixtures thereof.

[0105] The tinted sunscreen composition of the present invention comprises water. The water used may be sterile demineralized water and / or deionized water and / or floral water such as rose water, cornflower water, chamomile water or linden water, and / or natural thermal or mineral water such as, for example: Vittel water, Vichy basin water, Uriage water, La Roche Posay water, La Bourboule water, Enghien-les-Bains water, Saint Gervais-les-Bains water, Néris-les-Bains water, Allevar-les-Bains water, Digne water, Maizières water, Neyrac-les-Bains water, Lons-le-Saunier water, Eaux-Bonnes water, Rochefort water, Saint Christau water, water from the Fumades, the water of Tercis-les-Bains or the water of Avène. The water may also include reconstituted thermal water, that is to say water containing trace elements such as zinc, copper, magnesium etc., recreating the characteristics of a thermal water..

[0106] A person skilled in the art shall ensure that the optional additional ingredients and / or their quantity are selected so that the advantageous properties of the composition according to the invention are not, or not substantially, compromised by the envisaged addition.

[0107] A non-limiting example of preservative agent or preservatives that may be used in accordance with the invention includes salicylic acid, sodium benzoate, phenoxyethanol, disodium EDTA, chlorphenesin, and mixtures thereof.

[0108] Additional suitable solvents include, but are not limited to, alcohol, water, propylene carbonate, glycerin, isododecane, pentylene glycol, caprylyl glycol, a C12-15 alkyl benzoate, phenethyl benzoate (and) benzoic acid, propanediol, undecane (and) tridecane, and mixtures thereof.

[0109] Suitable additional surfactants may be selected, among others, from potassium cetyl phosphate, sodium methyl stearoyl taurate and inulin lauryl carbamate.

[0110] In various embodiments, the solvent is present in a concentration of approximately 10% to approximately 70% by weight, or approximately 20% to approximately 65% ​​by weight, or preferably approximately 30% to approximately 60% by weight, including ranges and intermediate sub-ranges, relative to the total weight of the compositions in this disclosure.

[0111] In addition, suitable ingredients include, but are not limited to, pH adjusters such as triethanolamine.

[0112] The composition may include vitamins, such as ascorbyl glucoside, niacinamide, tocopherol, and mixtures thereof.

[0113] Examples of fatty compounds or oily materials include, but are not limited to, isopropyl lauroyl sarcosinate, stearyl alcohol, diisopropyl adipate, diisopropyl sebacate, dicaprylyl carbonate, and mixtures thereof. According to certain embodiments of the invention, the tinted sunscreen composition according to the present invention includes fatty compounds selected from diisopropyl sebacate, diisopropyl adipate, dicaprylyl carbonate, and combinations thereof.

[0114] Additional ingredients may represent from 50% to 85%, such as from 55% to 80% or such as from 55% to 75% by weight of the total weight of the composition.

[0115] By way of non-limiting illustration, the invention will now be described with reference to the following examples.

[0116] PROCESS FOR MANUFACTURING A TINTED SUNSCREEN COMPPOSITION

[0117] A non-limiting example of a preparation of the tinted sunscreen composition according to the present invention could be the following:

[0118] Step (A): Main container - hot oily phase comprising oily raw materials, hectorite compounds, oil-soluble polymers such as polyamide compounds, and optionally pigments, at a temperature of 75 °C to 80 °C;

[0119] Step (B): Secondary container - cold aqueous phase at room temperature comprising aqueous raw materials and water-soluble polymers such as acrylate compounds;

[0120] Step (C): the aqueous phase of step (B) is added to the oily phase of step (A), followed by mixing the mixture;

[0121] Step (D): other fillers (if present) are added to the mixture obtained in step (C), then a neutralization is carried out;

[0122] Step (E): the fillers are added gradually to the mixture obtained in step (D) and mixed until homogeneous, at a temperature below 40 °C;

[0123] Step (E): Optionally, pigments are added to the mixture obtained in step (E). METHODS OF IMPLEMENTATION

[0124] An example of a suitable tinted sunscreen composition according to the present invention includes:

[0125] (a) 0.05% to 8% by weight of one or more fillers selected from hectorite disteardimonium, stearalconium hectorite, quaternium-18 hectorite, quaternium-18 bentonite, silica, silica silylate, and mixtures thereof;

[0126] (b) 0.5% to 10% by weight of one or more surfactants selected from phosphate isotridecyl, laureth-23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and their combinations and mixtures;

[0127] (c) 0.05% to 10% by weight of one or more polymers selected from the copolymer hydroxyethyl acrylate / sodium acryloyldimethyloctyloate, polyamide-8, C10-30 alkyl polyacrylate, C10-30 alkyl acrylate copolymer, hydroxyethyl acrylate, ammonium acryloyldimethyltaurate / VP copolymer, sodium polyacrylate, carbomer, C10-30 alkyl acrylate crosslinked polymer, and mixtures thereof;

[0128] (d) 0.5% to 10% by weight of carnauba wax;

[0129] (e) 5% to 30% by weight of UV filters selected from organic UV filters, inorganic UV filters, and combinations thereof, wherein the UV filters are selected from diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, drometrizole trisiloxane, ethylhexyl salicylate, ethylhexyl triazone, homosalate, methylene bis-benzotriazolyl tetramethylbutylphenol, octocrylene, phenylzimidazole sulfonic acid, polyglyceryl-10 laurate, terephthalylidene diamphrul sulfonic acid, ethylenediamine disuccinate trisodium, titanium dioxide, zinc oxide, and mixtures thereof; and

[0130] (f) 5% to 30% by weight of pigments comprising titanium dioxide, oxides iron, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, alumina, aluminum hydroxide, or mixtures thereof

[0131] in which all percentages by weight are based on the total weight of the tinted sunscreen composition.

[0132] In a further embodiment, a process for manufacturing a tinted sunscreen composition includes:

[0133] (a) one or more charges;

[0134] (b) one or more surfactants selected from isotridecyl phosphate, laureth- 23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and mixtures thereof;

[0135] (c) one or more polymers selected from the acrylate copolymer hydroxyethyl / sodium acryloyldimethyl taurate, polyamide-8, C10-30 alkyl polyacrylate, Ci2.22 alkyl acrylate / hydroxyethyl acrylate copolymer, ammonium acryloyldimethyltaurate / VP copolymer, sodium polyacrylate, carbomer, aluminum starch octenylsuccinate, C10-30 alkyl acrylate crosslinked polymer, and combinations thereof;

[0136] (d) of camauba wax;

[0137] (e) UV filters selected from organic UV filters, UV filters inorganic materials, and their combinations; and

[0138] (f) pigments;

[0139] wherein the process comprises the following steps:

[0140] Step (A): Main container - hot oily phase comprising oily raw materials, hectorite compounds, an oil-soluble polymer such as polyamide compounds, and optionally pigments, at a temperature of 75 °C to 80 °C;

[0141] Step (B): Secondary container - cold aqueous phase at room temperature comprising aqueous raw materials and water-soluble polymers such as acrylate compounds;

[0142] Step (C): the aqueous phase of step (B) is added to the oily phase of step (A), followed by mixing the mixture;

[0143] Step (D): other fillers (if present) are added to the mixture obtained in step (C), then a neutralization is carried out;

[0144] Step (E): the fillers are added gradually to the mixture obtained in step (D) and mixed until homogeneous, at a temperature below 40 °C;

[0145] Step (E): Optionally, pigments are added to the mixture obtained in step (E).

[0146] In a further embodiment, the tinted cosmetic sunscreen composition of the present invention is used to manufacture a tinted product for the photoprotection of keratinous materials with a high SPF and UVA / UVB protection, and with medium to high color coverage. EXAMPLES Examples 1 to 7

[0147] Suitable tinted sunscreen compositions according to the present invention are such as the following examples 1 to 7:

[0148] [Table 1] Table 1: Formulas according to the present invention Function Ingredient Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7 Fatty compound: Carnauba wax (Copemicia cerifera) 3.00 3.00 3.00 3.00 3.00 3.00 3.00 Diisopropyl adipate Diisopropyl sebacate Dicaprylyl carbonate 15.0 0 15.0 0 15.0 0 15.0 0 12.0 0 12.0 0 12.5 0 Polymer Hydroxyethyl acrylate / sodium acrylate copolymer 0.80 0.80 0.80 0.80 0.80 0.80 0.80 Polyamide-8 1.70 1.70 1.70 1.70 1.90 1.90 1.90 UV filter Ethylhexyl triazone Drometrizole trisiloxane Bis-ethylhexyloxyphenol methoxyphenyl triazine Diethylamine benzoate hydroxybenzoyl hexyl 14.0 0 14.0 0 14.0 0 14.0 0 14.0 0 14.0 0 14.0 0 Surfactant PEG-30 dipolyhydroxystearate 1.20 1.20 1.20 1.20 3.00 3.00 3.00 Octyldodecanol (et) octyldodecyl xyloside 2.80 2.80 2.80 2.50 2.00 2.00 2.00 Filler Disteardimonium hectorite 0.50 0.50 0.70 0.70 0.90 0.90 0.90 Silica - - - - 1.80 1.30 2.30 Silica silylate 2.30 2.30 - - - 1.30 - Additional ingredients Niacinamide Tocopherol Salicylic acid 4.50 4.50 5.51 6.46 6.46 6.46 6.46 Caffeine Zinc gluconate Sodium benzoate Trisodium ethylenediamine disuccinate Hydroxyacetophenone Dilauryl thiodipropionate Citric acid Dye / pigment Iron oxides (and) Isopropyl titanium triisostearate (and) Triethoxysilethyl polydimethylsiloxyethyl dimethicone 17.0 0 17.0 0 17.0 0 17.0 0 17.0 0 17.0 0 Titanium dioxide (and) Isopropyl titanium triisostearate (and) Polydiethylsiloxyethyl dimethicone (and) Alumina Solvent Alcohol - - 3.00 3.00 3.00 3.00 3.00 Propylene carbonate 0.30 - - - 0.46 0.46 0.46 Glycerin 2.50 2.50 - - - - - Pentylene glycol - - 0.40 0.40 0.40 0.40 0.40 Propanediol - - 4.50 4.50 3.50 3.50 3.50 Isododecane 12.0 0 12.0 0 - 7.00 7.00 7.00 7.00 Undecane (and) tridecane - - 7.00 - - - - C12-15 alkyl benzoate 12.0 0 12.0 0 12.0 0 12.0 0 9.50 9.50 9.50 Phenethyl benzoate (and) benzoic acid Water QSP QSP QSP QSP QSP QSP QSP 100 100 100 100 100 100 100

[0149] In Table 1, all quantities of ingredients are percentages by weight based on the total weight of the tinted sunscreen composition.

[0150] Sunscreen compositions according to the prior art are, according to Examples 8 to 11, as follows:

[0151] [Table 2] Table 2: Formulas according to the prior art Function Ingredient Ex. 8 Ex. 9 Ex. 10 Ex. 11 UV Filter Ethylhexyl Salicylate 24.30 24.30 24.30 24.30 Octocrylene Homosalate Bis-ethylhexyloxyphenol methoxyphenyl triazine Diethylamino hydroxybenzoylhexyl benzoate Surfactant PEG-30 Dipolyhydroxystearate 1.75 1.75 1.75 1.75 Polyglyceryl-4 Diisostearate / polyhydroxystearate / sebacate Bulking Agent Disteardimonium Hectorite 0.75 0.75 0.75 0.75 Additional Ingredients Magnesium Sulfate 5.20 5.20 5.20 5.20 Niacinamide Tocopherol Phenoxyethanol Caffeine Dye / Pigment Iron oxides (and) isopropyl titanium triisostearate (and) triethoxysilylated ethyl polydimethylsiloxyethyl dimethicone 17.00 17.00 17.00 17.00 Titanium dioxide (and) isopropyl titanium triisostearate (and) polydimethylsiloxyethyl dimethicone (and) aluminum Synthetic fluorophlogopite Silicone Polymer crosslinked vinyl dimethicone / methicone silsesquioxane 13.50 13.50 13.50 13.50 Dimethicone Solvent Propanediol 10.0 10.0 10.0 10.0 Alcohol Water QSP 1 00 QSP 1 00 QSP 1 00 QSP 1 00 Example 12# - Stability Tests

[0152] Stability tests were carried out to evaluate the stability of the tinted sunscreen composition of Ex. 5 and Ex. 6 (present invention). The stability of the composition of Ex. 5 was studied for 2 months at 4 °C, 25 °C, and 45 °C. Optical microscopy determined that there was no crystallization of the UV filters after 2 months at 4 °C. Furthermore, observations of the formula after 2 months at 25 °C and 45 °C showed no migration of pigments to the surface, demonstrating the stability of the dispersion. Regarding the stability of the emulsion, microscopic observation of the aforementioned formulas showed no changes in droplet size and distribution or in edge characteristics compared to the unconstrained formula. These results were observed for both Ex. 5 and Ex. 6, demonstrating the stability of the formulas.

Claims

Demands

1. Tinted sunscreen composition comprising: (a) one or more fillers; (b) one or more surfactants selected from isotridecyl phosphate, laureth-23, octyldodecanol (and) octyldodecyl xyloside, PEG-30 dipolyhydroxystearate, PEG-8 laurate, sodium dodecylbenzenesulfonate, and combinations thereof, and mixtures thereof; (c) one or more polymers selected from hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, polyamide-8, C10-30 alkyl polyacrylate, C10-30 alkyl acrylate / hydroxyethyl acrylate copolymer, ammonium acryloyldimethyltaurate / vp copolymer, sodium polyacrylate, carbomer, aluminum starch octenylsuccinate, C10-30 alkyl acrylate crosslinked polymer, and combinations thereof; (d) camauba wax; (e) UV filters selected from organic UV filters, inorganic UV filters, and combinations thereof; and (f) pigments.

2. A tinted sunscreen composition according to claim 1, wherein one or more fillers are selected from disteardimonium hectorite, stearalconium hectorite, quaternium-18 hectorite, quaternium-18 bentonite, silica, silica silylate, and mixtures thereof; and wherein one or more fillers range from 0.05% to 8% by weight, relative to the total weight of the composition.

3. Tinted sunscreen composition, according to claim 1, wherein one or more surfactants range from 0.5% to 10% by weight, relative to the total weight of the composition.

4. A tinted sunscreen composition according to claim 1, wherein one or more polymers range from 0.05% to 10% by weight, relative to the total weight of the composition.

5. Tinted sunscreen composition, according to claim 1, wherein the emulsified camauba wax is from 0.5% to 10% by weight, relative to the total weight of the composition.

6. A tinted sunscreen composition according to claim 1, wherein the UV filters are selected from diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, drometrizole trisiloxane, ethylhexyl salicylate, ethylhexyl triazone, methylene bis-benzotriazolyl tetramethylbutylphenol, octocrylene, phenylbenzozimidazole sulfonic acid, polyglyceryl-10 laurate, terephthalylidene diamphrum sulfonic acid, ethylenediamine disuccinate trisodium, titanium dioxide, zinc oxide, and combinations thereof; and wherein the UV filters range from 5% to 30% by weight, relative to the total weight of the composition.

7. A tinted sunscreen composition according to claim 1, wherein the pigments comprise titanium dioxide, iron oxides, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, isopropyl titanium triisostearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, alumina, aluminum hydroxide, or mixtures thereof.

8. A tinted sunscreen composition according to claim 1, wherein one or more pigments range from 5% to 30% by weight, relative to the total weight of the composition.

9. A tinted sunscreen composition according to claim 1, wherein it further comprises cosmetically acceptable ingredients selected from additional UV filters, active compounds, fatty compounds, fillers, perfume / fragrance, additional polymers, preservatives, solvents, additional surfactants, vitamins, pH adjuster, and mixtures thereof.

10. Tinted sunscreen composition according to claim 1, wherein it is in the form of a water-in-oil (W / O) emulsion.