Sunscreen compositions containing bemotrizinol

Abstract

The present invention relates to a sunscreen composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) and at least one film former selected from the group consisting of citric acid crosspolymers and polyamides, in combination with an alkanediol, with the proviso that the composition does not contain octocrylene, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate and ethylhexyl methoxycinnamate. The composition exhibits reduced soaping effect and therefore a more attractive skin feel and appearance.

Description

Detailed Description of the Invention

[0001] The present invention relates to a sunscreen composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) and at least one film former selected from the group consisting of citric acid crosspolymers and polyamides, in combination with an alkanediol, with the proviso that the composition does not contain octocrylene, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate and ethylhexyl methoxycinnamate. The composition exhibits reduced soaping effect and therefore a more attractive skin feel and appearance.

[0002] Sunscreens should be effective and safe. In this respect, they contain different UVB and UVA filters. Among these UV filters, bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) is particularly advantageous because it is a broad-spectrum UV absorber that absorbs UVB as well as UVA rays, is highly photostable, and has a strong synergistic effect on SPF when combined with, for example, bis-octrizole or iscotrizinol. Overall, based on the maximum concentration allowed by European law, it is currently considered the most effective UV absorber available, as measured by SPF.

[0003] However, sunscreens containing bis-ethylhexyloxyphenol methoxyphenyl triazine tend to show a soaping effect. To prevent this, consumers tend to use less sunscreen, but at the same time, consumers are less protected. The harmful effects of UV rays on the skin are well known. Therefore, it is important for the industry to provide a solution to such types of problems to ensure that consumers apply enough sunscreen for proper protection.

[0004] It was therefore an object of the present invention to remedy the shortcomings of the prior art and to develop a sun care product containing bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) which exhibits reduced soaping effect, thus resulting in a more appealing skin feel.

[0005] Moreover, such sunscreens should be suitable for the US market and free of UV filter substances, which, despite their approval by approval authorities, are not without controversy that can lead to downgrading by some consumer magazines (e.g. eco-test).

[0006] Surprisingly, it has now been found that the use of certain film-forming agents can reduce the soaping effect.

[0007] Thus, in a first embodiment, the present invention provides a sunscreen composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) and at least one film former selected from the group consisting of citric acid polyesters and polyamides, with the proviso that the composition does not comprise octocrylene, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate and ethylhexyl methoxycinnamate. In a preferred embodiment, the composition further comprises at least one alkanediol.

[0008] Another subject of the present invention is directed to a method for reducing the soaping effect of a sunscreen composition containing bis-ethylhexyloxyphenol methoxyphenyl triazine, said method comprising the steps of adding to said composition at least one film former selected from the group consisting of citric acid polyesters and polyamides, and optionally evaluating the effect.

[0009] In a further embodiment, the present invention also relates to the use of at least one film former selected from the group consisting of citric acid polyesters and polyamides to reduce the soaping effect of bis-ethylhexyloxyphenol methoxyphenyl triazine in a sunscreen composition.

[0010] Bis-ethylhexylphenol methoxyphenyl triazine (also referred to herein as BEMT) is also known as 2,4-bis{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine (chemical name) or bemotrizinol (INN). BEMT acts as a broad spectrum UV filter absorbing UVB and UVA rays. It has two absorption peaks, 310 and 340 nm. BEMT is suggested for use in sun products, day care products, alphabet products such as BB creams, and whitening products.

[0011] In all embodiments of the invention, the amount of BEMT in the sunscreen composition according to the invention is advantageously chosen in the range of 0.4 to 10% by weight, preferably in the range of 0.4 to 9% by weight, 0.4 to 8% by weight, 0.4 to 7% by weight, 0.4 to 6% by weight, 0.4 to 5% by weight, 0.4 to 4% by weight, 0.4 to 3% by weight, 0.5 to 3% by weight, 0.8 to 9% by weight, 0.8 to 8% by weight, 0.8 to 7% by weight, 0.8 to 6% by weight, 0.8 to 5% by weight, 0.8 to 4% by weight, 0.8 to 3% by weight, for example in the range of 1 to 5% by weight, 1 to 3% by weight, 2 to 5% by weight or 2 to 4% by weight, based on the total weight of the composition.

[0012] The citric acid polyesters according to the present invention are made of citric acid, alcohols of different chain lengths (stearyl C 18 , Octyldodecyl C 20 and Behenyl C 22) and a crosslinking agent. Preferred citrate ester polymers according to the invention are (INCI names) Octyldodecyl Citrate Crosspolymer, Stearyl / Octyldodecyl Citrate Crosspolymer and Behenyl Citrate / Octyldodecyl Propanediol Crosspolymer. Said polymers are marketed under the trade name CosmoSurf® at Ultra Chemical Inc., USA. Most preferably, the citrate polyester according to the invention is Stearyl / Octyldodecyl Citrate Crosspolymer, marketed under CosmoSurf® CE-140.

[0013] Preferred polyamides according to the invention include (INCI names) Polyamide-3, Polyamide-4, as well as Polyamide-8. Said polymers are commercially available, for example, from Croda under the trade name Oleocraft™. Most preferably, the polyamide according to the invention is Polyamide-8, commercially available as Oleocraft L-20 from Croda.

[0014] In all embodiments of the present invention, the preferred film former is polyamide, as it provides a more pronounced reduction in soaping effect. In all embodiments of the present invention, the use of polyamide-8 as a film former, and even more preferably as the only film former, is most preferred.

[0015] In all embodiments of the invention, the (total) amount of film-forming agents in the sunscreen composition according to the invention is advantageously at least 0.1% by weight and at most 10% by weight, preferably chosen in the range 0.5-10% by weight, more preferably in the range 0.75-6% by weight, most preferably in the range 1-5% by weight, for example in the range 1-4% by weight, 2-4% by weight or 2.5-3.5% by weight, based on the total weight of the composition.

[0016] In all embodiments of the present invention, the ratio of the total amount of the at least one film-forming polymer to the total amount of BEMT is preferably selected in the range of 0.1:5 to 5:0.1, preferably in the range of 0.5:2.5 to 2.5:0.5, most preferably in the range of 0.5:1 to 1:0.5.

[0017] In a preferred embodiment, the sunscreen composition of the present invention further comprises one or more alkanediols. Suitable alkanediols include 1,2-alkanediols and 1,3-alkanediols, such as in particular 1,2-butanediol, butylene glycol (1,3-butanediol), 1,2-pentanediol, 1,2-hexanediol, 2-methyl-1,3-propanediol and 1,3-propanediol. In all embodiments of the present invention, the use of 1,3-propanediol, butylene glycol and / or 1,2-butanediol is preferred. In all embodiments of the present invention, the composition most preferably comprises 1,3-propanediol, butylene glycol and / or 1,2-butanediol as alkanediol, preferably in the absence of any further alkanediol. Even more preferably, the composition does not comprise any 1,3-propanediol, as 1,3-propanediol further reduces the soaping effect. Even more preferably, only butylene glycol is included in the formulation as the only alkanediol.

[0018] Thus, in certain advantageous embodiments, the composition comprises as the only alkanediol a) 1,3-propanediol and butylene glycol, b) 1,3-propanediol, or c) Butylene glycol Includes any of the following.

[0019] The amount of alkanediol in the sunscreen composition according to the present invention is preferably selected in the range of 1 to 10% by weight, more preferably 1.5 to 7.5% by weight, most preferably 2 to 6% by weight, based on the total weight of the composition.

[0020] Since the sunscreen compositions according to the invention are intended for topical application, it is fully understood that they comprise a physiologically acceptable medium, i.e. a medium that is compatible with the skin, mucous membranes and keratinous materials such as keratinous fibers. In particular, a physiologically acceptable medium is a cosmetically acceptable carrier.

[0021] It will be understood that the term sunscreen composition as used herein refers to a composition comprising at least BEMT, preferably in the presence of further substances that absorb UV light, such as commonly used UVA, UVB or broadband UV-filter substances.

[0022] In all embodiments of the present invention, the compositions are preferably free of octocrylene, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate and ethylhexyl methoxycinnamate.

[0023] The term "cosmetically acceptable carrier" as used herein refers to all carriers and / or excipients and / or diluents conventionally used in topical cosmetic compositions, especially in skin care formulations.

[0024] The exact amount of carrier will depend on the actual levels of the UV filter material and any other optional ingredients (eg, other active ingredients) that one of skill in the art would classify as different from a carrier.

[0025] In an advantageous embodiment, the sunscreen composition according to the invention comprises from 50% to 99%, preferably from 60% to 98%, more preferably from 70% to 98%, such as in particular from 80% to 95%, of a carrier, based on the total weight of the sunscreen composition.

[0026] In certain advantageous embodiments, the carrier further comprises at least 30% by weight, more preferably at least 40% by weight, most preferably at least 45% by weight of water, for example in particular 50-90% by weight of water, further preferred ranges being 50-75% by weight, 50-70% by weight, and 55-60% by weight.

[0027] In particular, the sunscreen composition according to the invention is a cosmetic or pharmaceutical composition, preferably a cosmetic (non-therapeutic) composition.

[0028] In one embodiment, the sunscreen composition according to the invention is applied to mammalian keratinous tissue, such as, in particular, human skin or the human scalp and hair.

[0029] The term "cosmetic composition" as used in this application refers to cosmetic compositions as defined in the "Kosmetika" section of Rompp Lexikon Chemie, 10th edition 1997, Georg Thieme Verlag Stuttgart, New York, as well as cosmetic compositions as disclosed in A. Domsch, "Cosmetic Compositions", Verlag für chemische Industrie (ed. H. Ziolkowsky), 4th edition, 1992.

[0030] Preferred sunscreen compositions according to the present invention are skin care formulations, decorative formulations, and functional formulations.

[0031] Examples of skin care formulations are, in particular, photoprotective formulations, anti-ageing formulations, formulations for the treatment of photoageing, body oils, body lotions, body gels, treatment creams, skin protective ointments, skin powders, sticks, balms, moisturizing gels, moisturizing sprays, moisturizers for the face and / or body, skin tanning formulations (i.e. compositions for artificial / sunless tanning and / or browning of human skin), such as self-tanning creams, and skin whitening formulations.

[0032] Examples of decorative preparations are especially lipsticks, eye shadows, mascaras, dry and wet make-up formulations, blushers and / or powders.

[0033] Examples of functional formulations are, but are not limited to, cosmetic or pharmaceutical compositions containing active ingredients such as hormone formulations, vitamin formulations, plant extract formulations, anti-aging formulations, and / or antimicrobial (antibacterial or antifungal) formulations.

[0034] In a particular embodiment, the sunscreen composition according to the invention is a photoprotective preparation (suncare product, sunscreen agent), such as sunscreen emulsions, sunscreen lotions, sunscreen creams, sunscreen oils, sunscreens with or without SPF (sun protection factor) labels or topical or daycare creams. Of particular interest are sunscreen creams, sunscreen lotions and sunscreen emulsions.

[0035] The compositions of the present invention (including the carrier) may contain conventional adjuvants and additives such as preservatives / antioxidants, fatty substances / oils, organic solvents, silicones, thickeners, emollients, emulsifiers, antifoaming agents, aesthetic ingredients such as fragrances, surfactants, fillers, anionic, cationic, nonionic or amphoteric polymers or mixtures thereof, propellants, acidifying or basifying agents, dyes, colorants / colorants, abrasives, absorbents, chelating and / or sequestering agents, essential oils, skin fresheners, astringents, pigments or any other ingredient normally incorporated into such compositions.

[0036] According to the invention, the compositions according to the invention may comprise further ingredients such as ingredients for skin whitening; sun protection; treatment of hyperpigmentation; preventing or reducing acne, wrinkles, fine lines, atrophy and / or inflammation, chelating and / or sequestrants, anti-pigmentation and slimming agents (e.g. phytanic acid), firming agents, moisturizing and revitalizing agents, self-tanning agents, soothing agents and agents for improving elasticity and skin barrier properties, as well as carriers and / or excipients or diluents conventionally used in sunscreen compositions.

[0037] Unless otherwise stated, the excipients, additives, diluents, etc. mentioned below are suitable for the sunscreen compositions according to the invention. The required amounts of cosmetic and dermatological adjuvants and additives can be easily determined by those skilled in the art based on the desired product.

[0038] Additional ingredients can be added either to the oil phase, to the water phase or separately if deemed appropriate. The mode of addition can be readily adapted by one skilled in the art.

[0039] Examples of cosmetic excipients, diluents, adjuvants, additives, and active ingredients commonly used in the skin care industry that are suitable for use in the cosmetic compositions of the present invention are described, for example and without limitation, in the International Cosmetic Ingredient Dictionary & Handbook by the Personal Care Product Council (http: / / www.personalcarecouncil.org / ), accessible via the online INFO BASE (http: / / online.personalcarecouncil.org / / Home.jsp).

[0040] Cosmetic actives useful herein can optionally provide more than one benefit or operate by more than one mechanism of action.

[0041] Of course, the skilled person will carefully select the above-mentioned optional additional components, adjuvants, diluents and additives and / or their amounts so that the advantageous properties inherently associated with the combination according to the invention are not adversely affected or are not substantially adversely affected by the addition or additions envisaged.

[0042] Preferred sunscreen compositions in all embodiments of the present invention are emulsions containing an oil phase and an aqueous phase, such as in particular O / W, W / O, Si / W, W / Si, O / W / O, W / O / W multiple or Pickering emulsions. The amount of oil phase (i.e. the phase containing all fats and oils) present in such emulsions is preferably at least 10% by weight, for example in the range 10-60% by weight, preferably in the range 15-50% by weight, most preferably in the range 15-40% by weight, based on the total weight of the composition.

[0043] According to an even more preferred embodiment, the sunscreen composition according to the invention as outlined herein is an O / W emulsion comprising an oil phase dispersed in an aqueous phase in the presence of an O / W emulsifier. The preparation of such O / W emulsions is well known to those skilled in the art and is illustrated in the examples.

[0044] In an advantageous embodiment, the O / W emulsifier is a phosphate ester emulsifier. Among the preferred phosphate ester emulsifiers are C8-10 alkylethyl phosphate, C9-15 alkyl phosphate, ceteareth-2 phosphate, ceteareth-5 phosphate, ceteth-8 phosphate, ceteth-10 phosphate, cetyl phosphate, C6-10 pareth-4 phosphate, C12-15 pareth-2 phosphate, C12-15 pareth-3 phosphate, DEA-ceteareth-2 phosphate, cetyl phosphate DEA, oleth-3 phosphate DEA, potassium cetyl phosphate, deceth-4 phosphate, deceth-6 phosphate and trilaureth-4 phosphate. A particular phosphate ester emulsifier according to the invention is potassium cetyl phosphate, for example commercially available as Amphisol® K at DSM Nutritional Products Ltd Kaiseraugst.

[0045] Further suitable O / W emulsifiers according to the invention are PEG-30 dipolyhydroxystearate, PEG-4 dilaurate, PEG-8 dioleate, PEG-40 sorbitol oleate, PEG-7 glyceryl coconutate, PEG-20 glyceryl almondate, PEG-25 hydrogenated castor oil, glyceryl stearate (and) PEG-100 stearate, PEG-7 olivoate, PEG-8 oleate, PEG-8 laurate, PEG-60 glyceryl almondate, PEG-20 methylglucose sesquistearate, PEG-40 stearate, stearic acid, glyceryl stearate ... Examples of suitable oleic acid include PEG-100 sorbitan laurate, steareth-2, steareth-12, oleth-2, ceteth-2, laureth-4, oleth-10, oleth 10 / polyoxyl 10 oleyl ether, ceteth-10, isosteareth-20, ceteareth-20, oleth-20, steareth-20, steareth-21, ceteth-20, isoceteth-20, laureth-23, steareth-100, glyceryl stearate citrate, glyceryl stearate (self-emulsifying), stearic acid, salts of stearic acid, and polyglyceryl-3 methylglucose distearate. Further suitable emulsifiers are sorbitan oleate, sorbitan sesquioleate, sorbitan isostearate, sorbitan trioleate, lauryl glucoside, decyl glucoside, sodium stearoyl glutamate, sucrose polystearate and hydrated polyisobutene.Furthermore, one or more synthetic polymers may be used as emulsifiers, such as PVP eicosene copolymer, acrylates / C10-30 alkyl acrylate crosspolymer, acrylates / steareth-20 methacrylate copolymer, PEG-22 / dodecyl glycol copolymer, PEG-45 / dodecyl glycol copolymer, and mixtures thereof.

[0046] Another particularly suitable type of O / W emulsifiers are the non-ionic self-emulsifying systems derived from olive oil, known for example as (INCI name) cetearyl olivate and sorbitan olivate (chemical composition: sorbitan and cetearyl esters of olive oil fatty acids) sold under the trade name OLIVEM 1000.

[0047] More suitable are commercially available polymeric emulsifiers, such as hydrophobically modified polyacrylic acids, such as acrylates / C10-30 alkyl acrylate crosspolymers available from Noveon under the tradenames Pemulen® TR-1 and TR-2.

[0048] Another class of particularly suitable emulsifiers are polyglycerol esters or diesters of fatty acids, also called polyglyceryl esters / diesters (i.e. polymers in which fatty acids are linked by esterification with polyglycerin), such as, for example, Isolan GPS (INCI name Polyglyceryl-4 Diisostearate / Polyhydroxystearate / Sebacate (i.e. diester of a mixture of isostearic acid, polyhydroxystearic acid and sebacic acid with polyglycerin-4) commercially available from Evonik or Dehymuls PGPH (INCI Polyglyceryl-2 Dipolyhydroxystearate) available from Cognis.

[0049] Polyethylene glycol ethers such as Brij 72 (polyoxyethylene (2) stearyl ether) or Brij 721 (polyoxyethylene (21) stearyl ether) available from Croda are also suitable.

[0050] Particularly advantageous O / W emulsifiers according to the invention are polyglyceryl-3 methylglucose distearate, lauryl glucoside (and) polyglyceryl-2 dipolyhydroxystearate, glyceryl stearate citrate, sodium cetearyl sulfate, cetearyl glucoside; polyglyceryl-6 stearate (and) polyglyceryl-6 behenate, cetearyl olivate (and) sorbitan olivate, arachidyl alcohol (and) behenyl arachidyl. The ingredients in the extract are one or more of: glyceryl stearate, steareth-20, steareth-21, steareth-25, steareth-2, ceteareth-25, and ceteareth-6 (all listed by their INCI names).

[0051] According to the invention, it is particularly preferred if the composition comprises potassium cetyl phosphate as emulsifier.

[0052] At least one O / W, respectively Si / W emulsifier is preferably used in an amount of 0.5 to 10% by weight, such as in particular in the range of 0.5 to 5% by weight, such as most in particular in the range of 0.5 to 4% by weight, based on the total weight of the composition.

[0053] Suitable W / O or W / Si emulsifiers according to the invention are polyglyceryl-2-dipolyhydroxystearate, PEG-30 dipolyhydroxystearate, cetyl dimethicone copolyol, polyglyceryl-3 diisostearate polyglycerol ester of oleic acid / isostearic acid, polyglyceryl-6 hexalicinoleate, polyglyceryl-4-oleate, magnesium stearate, sodium stearate, potassium laurate, potassium ricinoleate, sodium cocoate, sodium tallowate, potassium castorate, sodium oleate and mixtures thereof.Further suitable W / Si emulsifiers are lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and / or PEG-9 polydimethylsiloxyethyl dimethicone and / or cetyl PEG / PPG-10 / 1 dimethicone and / or PEG-12 dimethicone crosspolymer and / or PEG / PPG-18 / 18 dimethicone. The at least one W / O emulsifier is preferably used in an amount of about 0.001 to 10% by weight, more preferably 0.2 to 7% by weight, based on the total weight of the composition.

[0054] The sunscreen composition according to the invention further advantageously contains at least one co-surfactant, for example selected from the group of mono- and diglycerides and / or fatty alcohols. The co-surfactant is generally used in an amount selected from the range of 0.1 to 10% by weight, in particular from the range of 0.5 to 7% by weight, and most particularly from 1 to 5% by weight, based on the total weight of the composition. Particularly suitable co-surfactants are selected from the list of alkyl alcohols, such as cetyl alcohol (Lorol C16, Lanette 16), cetearyl alcohol (Lanette O), stearyl alcohol (Lanette 18), behenyl alcohol (Lanette 22), polyhydroxystearic acid, glyceryl stearate, glyceryl myristate (Estol 3650), hydrogenated cocoglycerides (Lipocire Na10) and mixtures thereof.

[0055] In all embodiments of the invention, it is particularly advantageous if the composition also comprises cetyl alcohol, stearyl alcohol and / or glyceryl stearate, preferably stearyl alcohol.

[0056] In an advantageous embodiment of the composition of the present invention, the composition contains dicaprylate / dicaprate, phenethyl benzoate, benzoic acid C 12 ~C 15 Alkyl, dibutyl adipate, diisopropyl sebacate, dicaprylyl carbonate, di-C tartrate 12 ~ 13 Alkyl, diethylhexyl syringylidene malonate, hydrogenated castor oil dimer acid, triheptanoin, lactic acid C 12 ~ 13 Alkyl, benzoic acid C 16 ~ 17 Also included are those containing one or more oils selected from alkyl, propylheptyl caprylate, caprylic / capric triglyceride, diethylhexyl 2,6-naphthalene dicarboxylate, octyldodecanol, and ethylhexyl coconut oil fatty acid. Preferably, the composition according to the present invention contains as the oil dibutyl adipate, phenethyl benzoate, dicaprylyl carbonate, benzoic acid C 12 ~C 15 Alkyl, caprylyl carbonate, tri(capric / caprylic)glycerides and mixtures thereof, most preferably dicaprylyl carbonate, dibutyl adipate and C benzoate. 12 ~C 15 Contains alkyl.

[0057] In yet a further advantageous embodiment of the present invention, the sunscreen composition of the present invention further comprises a preservative and / or a preservative booster, preferably selected from the group consisting of ethanol, phenoxyethanol, ethylhexylglycerin, hexylglycerin, glyceryl caprylate and mixtures thereof, most preferably selected from the group of phenoxyethanol and ethylhexylglycerin and mixtures thereof. When present, the preservative, preservative booster, respectively, is preferably used in an amount of 0.01 to 2% by weight, more preferably in an amount of 0.05 to 1.5% by weight, most preferably in an amount of 0.1 to 1.0% by weight, based on the total weight of the composition.

[0058] According to the invention, it is further advantageous if the composition according to the invention comprises ethanol, phenoxyethanol and / or ethylhexylglycerin.

[0059] In another advantageous embodiment, the sunscreen composition according to the invention does not contain any parabens, benzethonium chloride, piroctone olamine, lauroylarginate, methylisothiazolinone, chloromethylisothiazolinone, bronopol, benzalkonium chloride, formaldehyde releasing compounds, salicylic acid, triclosan, DMDM ​​hydantoin, chlorphenesin and IPBC (iodopropynyl butylcarbamate).

[0060] In another advantageous embodiment, the sunscreen composition according to the invention is further free of oxybenzone and / or methylbenzylidene camphor.

[0061] The sunscreen composition according to the present invention may further contain one or more emollients that soothe and soften the skin.By way of example, the emollients may be silicones (dimethicone, cyclomethicone), vegetable oils (grape seed, sesame seed, jojoba oil, etc.), butters (cocoa butter, shea butter), and petrolatum derivatives (petrolatum, mineral oil).

[0062] In another embodiment, the sunscreen composition of the present invention may comprise any of the following compounds: limonene, citral, linalool, alpha-isomethyl ionone, geraniol, citronellol, 2-isobutyl-4-hydroxy-4-methyltetrahydropyran, 2-tert-pentylcyclohexyl acetate, 3-methyl-5-phenyl-1-pentanol, 7-acetyl-1,1,3,4,4,6-hexamethyltetralin, adipic acid diester, cinnamal, amyl salicylate, alpha-amyl cinnamaldehyde, alpha-methyl ionone, butylphenyl methylpropional, cinnamal, amyl cinnamyl alcohol, anise alcohol, benzoin, benzyl alcohol, benzyl benzoate, benzyl cinnamate, saponin, squalene ... The composition may contain one or more fragrances selected from benzyl licylate, bergamot oil, bitter orange oil, butylphenyl methylpropional, cardamom oil, cedrol, cinnamal, cinnamyl alcohol, citronellyl methylcrotonate, citrus oil, coumarin, diethyl succinate, ethyl linalool, eugenol, evernia furfurasea extract, hornwort extract, farnesol, guaiawood oil, hexyl cinnamal, hexyl salicylate, hydroxycitronellal, lavender oil, lemon oil, linalyl acetate, mandarin oil, menthyl PCA, methylhexadecane, nutmeg oil, rosemary oil, sweet orange oil, terpineol, tonka bean oil, triethyl citrate, and vanillin.

[0063] The compositions of the invention may advantageously comprise a moisturizer, which is a compound or mixture of compounds that, after application or distribution on the skin surface, imparts to the cosmetic composition the quality of reducing water loss from the stratum corneum (e.g. as measured experimentally by transepidermal water loss (TEWL)) and / or positively influencing and / or maintaining the hydration status of the stratum corneum.

[0064] Non-limiting examples of advantageous moisturizing agents for use in the present invention include glycerol, lactic acid and / or lactate salts, especially sodium lactate, biosaccharide gum-1, wild soybean, ethylhexyloxyglycerol, pyrrolidone carboxylic acid and urea.Moreover, it is advantageous to use polymeric moisturizing agents, especially from the group of polysaccharides that are water-soluble and / or water-swellable and / or gellable with the force of water.Particularly advantageous are, for example, hyaluronic acid, chitosan and / or fucose-rich polysaccharides, which are registered in Chemical Abstracts under registration number 178463-23-5 and are available, for example, under the name Fucogel® 1000 from the company SOLABIA SA.Moisturizing agents can also be advantageously used, for example, as anti-wrinkle active ingredients to protect against changes to the skin of the type that occur with skin aging.

[0065] Advantageously, but not necessarily, the cosmetic composition of the present invention may further comprise fillers, which, for example, further improve the sensory and cosmetic properties of the formulation and have the effect of evoking or emphasizing a velvety or silky skin feel. Advantageous fillers in the sense of the present invention are starch and starch derivatives (such as tapioca starch, starch phosphate crosslinks, aluminum or sodium starch octenyl succinate, etc.), Valvance pigments that have essentially no UV filter or coloring effect (such as Valvance Touch 210 or 250), and / or Aerosils®, and / or talc, and / or polyethylene, nylon, and dimethylsilylated silica.

[0066] The aqueous phase of the compositions of the invention may advantageously contain customary cosmetic adjuvants, such as, in each case individually or in combination, alcohols, in particular those with low C numbers, preferably ethanol and / or isopropanol, or polyols with low C numbers, and also their ethers, preferably glycerol, electrolytes, self-tanning agents, and also in particular one or more thickeners, which may advantageously be selected from the group of silicon dioxide, aluminum silicates, polysaccharides and / or derivatives thereof, such as hyaluronic acid, xanthan gum, hydroxypropylmethylcellulose, particularly advantageously polyacrylates, preferably from the group of polyacrylates known as carbopols, examples of which are carbopols of types 980, 981, 1382, 2984 and 5984. According to the invention, advantageous further thickeners are those with the INCI name Acrylates / C10-30 Alkyl Acrylate Crosspolymer (e.g. Pemulen TR 1, Pemulen TR 2, Carbopol 1328 from NOVEON), and also Aristoflex AVC (INCI: Ammonium Acryloyldimethyltaurate / VP Copolymer) and Simugel NS (INCI: Hydroxyethyl Acrylate / Sodium Acryloyldimethyltaurate Copolymer and Squalane and Polysorbate 60).

[0067] According to the present invention, it is preferred if the composition comprises xanthan gum, crosslinked acrylates / C10-C30 alkyl acrylate polymer, hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer and / or vinylpyrrolidone / hexadecene copolymer, preferably xanthan gum and / or hydroxyethyl acrylate / sodium acryloyldimethyl taurate, most preferably both xanthan gum and hydroxyethyl acrylate / sodium acryloyldimethyl taurate.

[0068] The sunscreen compositions of the present invention manage to require surprisingly low total amounts of UV filters.

[0069] In another embodiment, the composition may have an SPF of at least 15, preferably at least 20, and most preferably at least 30.

[0070] Advantageously according to the invention, the composition of the invention may comprise a further film-forming agent.

[0071] It is particularly advantageous to select the further film-forming agent from the group of polymers based on polyvinylpyrrolidone (PVP).

[0072] Particularly preferred are copolymers of vinylpyrrolidone, such as, for example, PVP hexadecene copolymer and PVP eicosene copolymer, available under the trade names Antaron V216 and Antaron V220 from GAF Chemicals Corporation.

[0073] Also advantageous as further polymeric film formers are sodium polystyrene sulfonate, available for example under the trade name Flexan 130 from National Starch and Chemical Corp., and / or polyisobutene, available under the trade name Rewopal PIB1000 from Rewo. Examples of further suitable polymers are polyacrylamide (Seppigel 305), polyvinyl alcohol, PVP, PVP / VA copolymer, polyglycol, acrylate / octyl acrylamide copolymer (Dermacryl 79). Also advantageous is the use of hydrogenated castor oil dimer dilinoleate (INCI hydrogenated castor oil dimer dilinoleate), available under the trade name Risocast DA-H from Koyu Alcohol Kogyo Co., Ltd., or benzyl ether of myristic acid PPG-3, available under the trade name Crodamol STS from Croda Chemicals.

[0074] Sunscreen compositions according to the present invention will generally have a pH in the range of 3 to 10, preferably a pH in the range of 4 to 8, most preferably a pH in the range of 4 to 7. The pH can be readily adjusted, if necessary, using a suitable acid, such as citric acid, or a base, such as NaOH, according to standard methods in the art.

[0075] According to the invention, the use of the composition according to the invention is for protecting the skin against ageing, in particular for protecting against UV-induced skin ageing, and as a UV protection composition.

[0076] Finally, a subject of the present invention is a method for the cosmetic treatment of keratinous material, in particular the skin, in which a composition as defined herein is applied to said keratinous material, in particular the skin. This method is particularly suitable for protecting the skin against the adverse effects of ultraviolet radiation, in particular sunburn and / or photoaging, while avoiding fluorescent staining of clothes and / or garments.

[0077] The following examples are provided to further illustrate the compositions and effects of the present invention. These examples are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0078] [Experimental section] [Composition] Formulations (O / W emulsions) as outlined in Tables 1 and 2 were prepared according to standard methods in the art.

[0079] [method] The soaping effect was measured with a LENETA black card according to the method outlined below. - Apply 300 mg of cream to LENETA black card - The cream is spread to a uniform thickness by a spreading device (speed: 10 mm / sec) using a 90 mm spreading knife - Measure the LAB immediately after application with a Minolta Chroma Meter CR-300 at four measurement spots on each card. - Calculate the average L value and compare

[0080] The results are summarized in Tables 1 to 4.

[0081] [Table 1]

[0082] [Table 2]

[0083] As can be drawn from Tables 1 and 2, the compositions according to the invention show a significant reduction in the L value illustrating a reduced soaping effect, the effect being particularly pronounced when polyamide-8 is used and / or in the absence of 1,3-propanediol.

[0084] [Table 3]

[0085] [Table 4]

[0086] As can be drawn from Tables 3 and 4, the compositions according to the invention show a significant reduction in the L value illustrating a reduced soaping effect in combination with the alkanediol and in the absence of octocrylene, respectively.

Claims

1. A sunscreen composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine and at least one film former selected from the group consisting of citric acid polyesters and polyamides, with the proviso that said composition is free of octocrylene, ethylhexyl triazone, diethylamino hydroxybenzoyl hexyl benzoate and ethylhexyl methoxycinnamate, and said sunscreen composition further comprises one or more alkanediols.

2. A sunscreen composition as described in claim 1, wherein the amount of bis-ethylhexyloxyphenol methoxyphenyl triazine is selected in the range of 0.1 to 10 wt%, preferably 0.5 to 5 wt%, and most preferably 1 to 5 wt%, based on the total weight of the composition.

3. 3. A sunscreen composition according to claim 1 or 2, wherein the amount of said at least one film-forming agent is selected in the range of 0.1 to 10% by weight, preferably 1 to 5% by weight, most preferably 2.5 to 5% by weight, based on the total weight of the composition.

4. 3. A sunscreen composition according to claim 1 or 2, wherein the citrate polyester is selected from the group consisting of octyldodecyl citrate crosspolymer, stearyl / octyldodecyl citrate crosspolymer and behenyl / octyldodecyl propanediol citrate crosspolymer and mixtures thereof, preferably the citrate polyester is stearyl / octyldodecyl citrate crosspolymer.

5. A sunscreen composition according to claim 1 or 2, wherein the polyamide is selected from the group consisting of polyamide-3, polyamide-4 and polyamide-8, and mixtures thereof, preferably the polyamide is polyamide-8.

6. 3. A sunscreen composition according to claim 1 or 2, wherein the one or more alkanediols are selected from the group consisting of 1,3-propanediol, butylene glycol and 1,2-butanediol, preferably from 1,3-propanediol and butylene glycol, most preferably butylene glycol is used as the only alkanediol.

7. A sunscreen composition described in claim 1 or 2, wherein the amount of alkanediol is selected in the range of 1 to 10 wt. %, preferably 1.5 to 7.5 wt. %, and most preferably 2 to 6 wt. %, based on the total weight of the composition.

8. 3. A sunscreen composition according to claim 1 or 2, which is an O / W emulsion comprising an oil phase dispersed in an aqueous phase in the presence of an O / W emulsifier, preferably in the presence of a cetyl phosphate emulsifier, most preferably in the presence of potassium cetyl phosphate.

9. Dicaprylate / Dicaprate, Phenethyl Benzoate, Benzoic Acid C １２ ~C １５ Alkyl, dibutyl adipate, diisopropyl sebacate, dicaprylyl carbonate, di-C tartrate １２ ~ １３ Alkyl, dimer acid hydrogenated castor oil, triheptanoin, lactic acid C １２ ~ １３ Alkyl, benzoic acid C １６ ~ １７ Alkyl, propylheptyl caprylate, caprylic / capric triglyceride, diethylhexyl 2,6-naphthalene dicarboxylate, octyldodecanol, ethylhexyl coconut oil fatty acid, preferably dicaprylyl carbonate, phenethyl benzoate, benzoic acid C １２ ~C １５ Alkyl, caprylyl carbonate, tri(capric / caprylic)glyceride, most preferably dicaprylyl carbonate, dibutyl adipate and C benzoate. １２ ~C １５ 3. The sunscreen composition of claim 1 or 2, further comprising one or more alkyl groups.

10. 3. A sunscreen composition according to claim 1 or 2, further comprising one or more of ethanol, phenoxyethanol and ethylhexylglycerin, preferably phenoxyethanol and ethylhexylglycerin.

11. Xanthan gum, crosslinked acrylate / acrylic acid C １０ ~C ３０ 3. A sunscreen composition according to claim 1 or 2, further comprising one or more of an alkyl polymer, a hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, preferably xanthan gum and a hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer.

12. 3. A sunscreen composition according to claim 1 or 2, further comprising one or more of behenyl alcohol, cetyl alcohol, cetearyl alcohol, stearyl alcohol and glyceryl stearate, preferably behenyl alcohol, stearyl alcohol and cetearyl alcohol.

13. 1. A method for reducing the soaping effect of a sunscreen composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine, said method comprising the step of adding to said composition at least one film former selected from the group consisting of stearyl / octyldodecyl citrate crosspolymer and polyamide-8, preferably polyamide-8.

14. Use of at least one film former selected from the group consisting of stearyl / octyldodecyl citrate crosspolymer and polyamide-8, preferably polyamide-8, to reduce the soaping effect of bisethylhexyloxyphenol methoxyphenyl triazine in a cosmetic composition.

15. The method according to claim 13 or the use according to claim 14, wherein the composition further comprises at least one alkanediol, preferably 1,3-propanediol and / or butylene glycol, most preferably butylene glycol is used as the only alkanediol in the composition.