WO2019119078A1 - Sun care composition - Google Patents
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- WO2019119078A1 WO2019119078A1 PCT/BR2017/050392 BR2017050392W WO2019119078A1 WO 2019119078 A1 WO2019119078 A1 WO 2019119078A1 BR 2017050392 W BR2017050392 W BR 2017050392W WO 2019119078 A1 WO2019119078 A1 WO 2019119078A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6921—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere
- A61K47/6927—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores
- A61K47/6929—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores the form being a nanoparticle, e.g. an immuno-nanoparticle
- A61K47/6931—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores the form being a nanoparticle, e.g. an immuno-nanoparticle the material constituting the nanoparticle being a polymer
- A61K47/6933—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores the form being a nanoparticle, e.g. an immuno-nanoparticle the material constituting the nanoparticle being a polymer the polymer being obtained by reactions only involving carbon to carbon, e.g. poly(meth)acrylate, polystyrene, polyvinylpyrrolidone or polyvinylalcohol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/342—Alcohols having more than seven atoms in an unbroken chain
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
- A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/98—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin
- A61K8/987—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin of species other than mammals or birds
Definitions
- the present invention is directed to a sun care composition with high SPF, which comprises an association of a specific emulsifying system, a specific thickener polymer and a UV filter system, the process of manufacturing the composition and its uses.
- UVA/UVB sunscreen compositions used to accomplish photoprotection, namely, inorganic UV filters and organic UV filters.
- UVB radiation causes skin reddening and sunburn, tends to damage the skin more superficial epidermal layers. It plays a key role in the development of skin cancer and a contributory role in tanning and photoaging.
- the UVA radiation is the dominant tanning ray, and we now know that tanning, whether outdoors or in a salon, causes cumulative damage over time. A tan result from injury to the skin's DNA; the skin darkens in an imperfect attempt to prevent further DNA damage. These imperfections, or mutations, can lead to skin cancer.
- the long UVA radiations are the less energetic UVA radiation and therefore, they were considered as“less dangerous”. But they are numerous in our environment, as they represent more than 75% of UV rays reaching earth. So it is worth studying their skin impact as they will be repeated every day for a long period of time.
- the UV filters may either protect against UVA radiation (long wave), UVB radiation (shortwave), or both.
- UVA radiation long wave
- UVB radiation shortwave
- SPDF Sun Protection Factor
- UVA ratings the degree of UV protection afforded by a sunscreen composition is directly related to the amount and type of UV filters contained therein. The higher the amount of UV filters, the greater the degree of UV protection.
- sunscreen compositions have been proposed to overcome the effects induced by UVA and/or UVB radiation.
- They generally contain organic or mineral UV-screening agents, which function according to their own chemical nature and according to their own properties by absorption, reflection or scattering of the UV radiation.
- they generally contain mixtures of liposoluble organic screening agents and/or of water- soluble UV-screening agents combined with metal oxide pigments such as titanium dioxide or zinc oxide.
- the sunscreen compositions having UVA or UVB or UVA/UVB filter systems commonly used in the sunscreen cosmetic market are generally in the form of oil, an oil-in-water emulsion (stabilized dispersion of an oily phase in an aqueous phase) or a water-in-oil emulsion (stabilized dispersion of an aqueous phase in an oily phase) comprising at least one oily phase comprising solvents and oils.
- composition that not only protects the keratin fibers from the damages of the sun, but also hydrates and protects the skin against the pollution and loss of water.
- the inventors succeeded to overcome the problems of the state of the art and surprisingly revealed a stable sun care composition with high SPF, by the specific combination of an emulsifying system, a specific thickener polymer and a UV filter system of the present invention.
- the present invention is directed to provide a stable sun care composition with high SPF which comprises an association of specific emulsifying system comprising polyglyceryl-6 distearate and jojoba esters and polyglyceryl-3 beeswax and cetyl alcohol; a thickener polymer selected from acrylate/C-io-30 alkyl acrylate crosspolymers; and a UV filter system, the process of manufacturing the composition and its uses.
- composition of the present invention presents a high level of UV- protection in order to protect the keratin fibers from the damages of the sun, having properties of hydrating and protecting the skin against the pollution and loss of water.
- FIG. 1 (a) to (c) are microscopic photographs of the visual aspect of the final composition of the present invention, demonstrating the stability of the emulsion over 1 and 2 months, at different temperatures of 4, 25 and 45 Q C.
- FIG. 2 (a) and (b) are photographs of the visual aspect of the composition of the present invention when the neutralization is made before and after emulsification, respectively.
- FIG 3 (a) and (b) are microscopic photographs of the composition of the present invention when the neutralization is made before and after the emulsification, respectively.
- the sun care composition of the present invention comprises:
- a thickener polymer selected from acrylate/Cio-30 alkyl acrylate crosspolymers
- the composition according to the invention provides excellent sensorial performance as well as surprisingly high SPF values associated to a strong stability over the time.
- the pH of the sun care composition of the invention is preferably within the range of about 6.2 to about 7.5, more preferably, of about 6.5.
- the density of the sun care composition of the invention is preferably within the range of about 0.9 g/cm 3 to about 1 .1 g/cm 3 , more preferably, of about 1 .0 g/cm 3 .
- the viscosity of the sun care composition of the invention is preferably within the range of about 1600 mPa.s to about 3300mPa.s and more preferably, of about 1800 to about 2300 mPa.s.
- the sun care composition of the present invention may present a Sun Protection Factor ranging from 30 to 70.
- the sun care composition of the presents invention may present a Sun Protection Factor of 30, 35, 40, 45, 50, 55, 60, 65 and 70.
- the sun care composition of the present invention may present a Sun Protection Factor of 30.
- the sun care composition of the present invention may present a Sun Protection Factor of 50.
- the sun care composition of the present invention may present a Sun Protection Factor of 70.
- Both the Sun Protection Factor 30, 50 and 70 means that if one burns in the sun after 10 minutes with no sunscreen, it will take thirty, fifty or seventy times longer to burn equivalently when the product is applied as directed.
- the sun care composition of the invention is in the form of an oil in water (O/W) emulsion.
- the sun care composition of the invention can be used as a daily product for the skin.
- the sun care composition of the present invention presents fine and light sensation on the skin, auto-adaptation to climate and seasons and pleasure upon application.
- the composition of the invention is for the manufacture of a product for preventing sunburns, hydrating and protecting the skin against the pollution and loss of water.
- the expression“at least” means one or more and thus includes individual components as well as mixtures/combinations.
- ranges provided are meant to include every specific range within, and combination of sub ranges between, the given ranges.
- a range from 1 -5 includes specifically 1 , 2, 3, 4 and 5, as well as sub ranges such as 2-5, 3-5, 2-3, 2-4, 1 -4, etc.
- All ranges and values disclosed herein are inclusive and combinable. For examples, any value or point described herein that falls within a range described herein can serve as a minimum or maximum value to derive a sub range, etc.
- the suitable emulsifying system of the present invention is a natural, PEG-free, O/W sensory emulsifier, which adapts to climate and creates active textures, bringing moisturization and pleasure on application.
- the emulsifying system of the composition of the present invention comprises a mixture of polyglyceryl-6 distearate, Jojoba Esters, Polyglyceryl-3 Beeswax and Cetyl Alcohol.
- Emulium Mellifera from Gatefosee.
- the emulsifying system may be present at a concentration of about 1.5% to about 4%, preferably of about 2.0% to about 3.5% and even more preferable between about 2.5 to about 3.5% by weight of the total weight of the composition.
- the thickener polymer of the present invention is an aqueous acid polymer used to structure the formulation, since the emulsifying system composed by a mixture of wax and esters, sensitive to low pH, is not properly stable.
- the suitable thickener polymer of the present invention is chosen from polymers such as the products sold under the name CARBOPOL (CTFA name: carbomer), homopolymers or copolymers of acrylic or methacrylic acids or the salts thereof and the esters thereof, such as the products sold under the names CARBOPOL ULTREZ 21 POLYMER (acrylates/C 10-C30 alkyl acrylate crosspolymer) (from Lubrizol).
- CARBOPOL CFA name: carbomer
- CARBOPOL ULTREZ 21 POLYMER acrylates/C 10-C30 alkyl acrylate crosspolymer
- the thickener polymer may be present at a concentration of about 0.01 % to about 10% by weight, such as from about 0.1 % to about 5% by weight, or from about 0.5% to about 2.5% by weight, relative to the total weight of the composition.
- Non-limiting suitable UV filter system of the present invention could be as follows:
- oil-soluble organic sunscreen ingredient means any organic compound for screening out UV radiation, which can be fully dissolved in molecular form or miscible in an oil phase or which can be dissolved in colloidal form (for example in micellar form) in an oil fatty phase.
- 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; diphenylacrylate derivatives; triazine derivatives; benzotriazole derivatives; benzalmalonate derivatives, especially those cited in patent US5624663; 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 EP8931 19; benzoxazole derivatives as described in patent applications EP0832642, EP1027883, EP1300137 and DE10162844; screening polymers and screening silicones such as
- cinnamic derivatives include, but are not limited to, ethylhexyl methoxycinnamate sold in particular under the trade name“Parsol ® MCX” by DSM Nutritional Products, isopropyl methoxycinnamate, isoamyl methoxycinnamate sold under the trade name“Neo Heliopan ® E 1000” by Symrise, DEA methoxycinnamate, diisopropyl methylcinnamate, glyceryl ethylhexanoate dimethoxycinnamate.
- ethylhexyl methoxycinnamate sold in particular under the trade name“Parsol ® MCX” by DSM Nutritional Products
- isopropyl methoxycinnamate isoamyl methoxycinnamate sold under the trade name“Neo Heliopan ® E 1000” by Symrise
- DEA methoxycinnamate diisopropyl
- dibenzoylmethane derivatives include, but are not limited to, butyl methoxydibenzoylmethane sold especially under the trade name “Parsol ® 1789” by DSM, isopropyl dibenzoylmethane.
- suitable salicylic derivatives include, but are not limited to, homosalate sold under the name“Eusolex ® HMS” by Rona/EM Industries, ethylhexyl salicylate sold under the name“Neo Heliopan ® OS” by Symrise, dipropylene glycol salicylate sold under the name“DipsalTM” by Scher, TEA salicylate sold under the name“Neo Heliopan ® TS” by Symrise.
- beta, beta -Diphenylacrylate derivatives examples include, but are not limited to, octocrylene sold in particular under the trade name“Uvinul ® N539” by BASF, etocrylene sold in particular under the trade name“Uvinul ® N35” by BASF.
- benzophenone derivatives examples include, but are not limited to, benzophenone-1 sold under the trade name “Uvinul ® 400” by BASF, benzophenone-2 sold under the trade name“Uvinul ® D50” by BASF, benzophenone-
- Suitable benzylidenecamphor derivatives include, but are not limited to, 3-Benzylidene camphor manufactured under the name“MexorylTM SD” by Chimex, 4-methylbenzylidene camphor sold under the name“Eusolex ® 6300” by Merck, polyacrylamidomethyl benzylidene camphor manufactured under the name “MexorylTM SW” by Chimex.
- Suitable phenylbenzotriazole derivatives include, but are not limited to, drometrizole trisiloxane sold under the name“silatrizole” by Rhodia Chimie, methylene bis-benzotriazolyl tetramethylbutyl-phenol sold in solid form under the trade name“MIXXIM BB/100” by Fairmount Chemical, or in micronized form as an aqueous dispersion under the trade name “Tinosorb ® M” by Ciba Specialty Chemicals.
- triazine derivatives include, but are not limited to, bis-Ethylhexyloxyphenol methoxyphenyl triazine sold under the trade name “Tinosorb ® S” by BASF, ethylhexyl triazone sold in particular under the trade name “Uvinul ® T150” by BASF, diethylhexyl butamido triazone sold under the trade name “Uvasorb ® FIEB” by Sigma 3V, 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, symmetrical triazine screening agents described in patent US 6,225,
- An example of a suitable anthranilic derivative includes, but is not limited to, menthyl anthranilate sold under the trade name“Neo Fleliopan ® MA” by Symrise.
- Imidazoline derivatives An example of a suitable imidazoline derivative includes, but is not limited to, ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.
- Benzalmalonate derivative includes, but is not limited to, polyorganosiloxane containing benzalmalonate functions, for instance polysilicone-15, sold under the trade name “Parsol ® SLX” by DSM Nutritional Products.
- Examples of a suitable 4,4-diarylbutadiene derivative includes, but is not limited to, 1 -Dicarboxy(2,2’-dimethylpropyl)-4, 4-diphenyl-butadiene.
- benzoxazole derivative includes, but is not limited to, 2,4-bis[5-(1 -dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2- ethylhexyl)imino-1 ,3,5-triazine sold under the name Uvasorb ® K2A by Sigma 3V, and mixtures thereof.
- the oil-soluble organic sunscreen ingredient will be chosen from butyl methoxydibenzoylmethane, ethylhexyl salicylate, ethylhexyl triazone, octocrylene, drometrizole trisiloxane, bis-ethylhexyloxyphenol methoxyphenyl triazine, and mixtures thereof.
- the oil-soluble organic sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 3% to about 25% by weight, preferably in an amount of from about 5% to about 20% by weight, and most preferably about 7% to about 18% by weight, based on the total weight of the composition.
- The“water-soluble organic sunscreen ingredient” means any organic compound for screening out UV radiation, which can be fully dissolved in molecular form or miscible in a liquid aqueous phase or which can be dissolved in colloidal form (for example in micellar form) in a liquid aqueous phase.
- Non-limiting examples of water-soluble organic sunscreen ingredients useful in the invention include, for example, terephthalylidene dicamphor sulfonic acid (Ecamsule), phenylbenzimidazole sulfonic acid (Ensulizole), benzophenone-4, aminobenzoic acid (PABA), 4-Bis(polyethoxy)-para-aminobenzoic acid polyethoxyethyl ester (PEG-25 PABA), camphor benzalkonium methosulfate, methylene bis-benzotriazolyl tetramethylbutylphenol (Bisoctrizole), disodium phenyl dibenzimidazole tetrasulfonate (Bisdisulizole disodium), and tris-biphenyl triazine; their derivatives and corresponding salts; naphthalene bisimide derivatives such as those described in European patent application EP1990372 A2, the entire contents of which is hereby incorporated
- the salts of the compounds that may be used according to the invention are chosen in particular from salts of alkali metals, for example sodium or potassium; salts of alkaline-earth metals, for example calcium, magnesium or strontium; metal salts, for example zinc, aluminium, manganese or copper; salts of ammonium of formula NH4+; quaternary ammonium salts; salts of organic amines, for instance salts of methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2- hydroxyethyl)amine; lysine or arginine salts.
- Salts chosen from sodium, potassium, magnesium, strontium, copper, manganese or zinc salts are preferably used.
- the sodium salt is preferably used.
- the water-soluble organic sunscreen ingredient will be chosen from terephthalylidene dicamphor sulfonic acid, methylene bis-benzotriazolyl tetramethylbutylphenol, and mixtures thereof.
- the water-soluble organic sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 0.1 % to about 10% by weight, preferably in an amount of from about 0.5% to about 8% by weight, and most preferably about 1 % to about 7% by weight, based on the total weight of the composition.
- the “silica-coated titanium dioxide sunscreen ingredient” means spherical beads which are formed by encapsulating titanium dioxide particles in silica.
- Non-limiting examples of silica coated titanium dioxide sunscreen ingredients useful in the invention include, for example, titanium dioxide coated with silica, such as the product“Sunsil Tin50” from Sunjin Chemical known under the INCI name silica (and) titanium dioxide having a composition of silica: titanium dioxide of about 55:45 and having a particle size from about 2 microns to about 7 microns.
- the silica-coated titanium dioxide sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 1 % to about 10% by weight, preferably in an amount of from about 2% to about 10% by weight, and most preferably about 5% to about 10% by weight, based on the total weight of the composition.
- the suitable UV filter system of the present invention comprises terephthalylidene dicamphor sulfonic acid, octocrylene and butyl methoxydibenzoylmethane, which are preferably known as MexorylTM SX and UV System, respectively.
- the concentration of the mixture of sunscreen/UV filters in the system may be between about 5% to about 35%, preferably between about 7% to about 30% and even more preferably between about 10 to about 29% by weight of the total weight of the composition.
- composition of the invention may further comprise any usual cosmetically acceptable ingredient, which may be chosen especially from such as additional sunscreens, perfume/fragrance, polymers, preserving agents, solvents, actives, surfactants, fat materials, vitamins, fillers and mixtures thereof.
- Suitable polymers include, but are not limited to, synthetic wax.
- Non-limiting example of preserving agent which can be used in accordance with the invention include phenoxyethanol.
- Suitable fillers of the invention could be as examples of oil-absorbing fillers: mica, zea may (corn) starch, magnesium oxide, nylon-12, nylon-66, cellulose, polyethylene, talc, talc (and) methicone, talc (and) dimethicone, perlite, sodium silicate, pumice, ptfe, polymethyl methacrylate, oryza sativa (rice) starch, aluminum starch octenylsuccinate, potato starch modified, alumina, calcium sodium borosilicate, magnesium carbonate, hydrated silica, dimethicone/vinyl dimethicone crosspolymer, sodium carboxylmethyl starch.
- Suitable solvents include, but are not limited to water, alcohols, glycols and polyols such as glycerin, caprylyl glycol, pentylene glycol, propylene glycol, butylene glycol, and mixtures thereof.
- the solvent is present in a concentration from about 15 to 00% by weight, or from about 20 to about 80% by weight, or from about 30 to about 70% by weight, or from about 35 to about 75% by weight, or preferably from about 40 to about 70% by weight, and more preferably from about 45 to about 65% by weight, including ranges and sub-ranges therebetween, based on the total weight of the combinations and/or compositions of the present disclosure.
- Suitable additional actives include, but are not limited to, disodium
- surfactants may also be used in the compositions of the present invention non limiting examples of surfactants suitable for use are fatty acids, glyceryl esters in addition to glyceryl stearate, alkoxylated fatty alcohols, such as stearic acid, laureth- 12, glyceryl isostearate, disodium stearoyl glutamate and mixtures thereof.
- Exemplary fat or oil materials include, but are not limited to, esters, fatty acids, synthetic oils, and hydrocarbons/paraffins, such as stearyl alcohol, myristic acid, palmitic acid silicones mineral oil, plant/vegetable oils, and mixtures thereof.
- Non-limiting example of vitamins suitable for the composition of the present invention includes tocopherol.
- the additional ingredients may represent from 60% to 85%, such as from 60%to 82% or such as from 65 to 80% by weight of the total weight of the composition.
- a suitable composition of the invention is as Examples 1 , as follows:
- a pH test was conducted in order to evaluate the pH of the composition of the invention via fast conception to prove that the neutralization phase of the polymers impacts on the final formula.
- test 1 Polymer neutralization on aqueous phase
- test 2 Polymer neutralization after the emulsion:
- FIG. 2 and FIG. 3 it is possible to observe the microscopy of these two processes wherein the neutralizing of the aqueous phase with the polymer, before the emulsification, provides a thinner and homogeneous emulsion.
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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BR112020011071-0A BR112020011071B1 (en) | 2017-12-19 | 2017-12-19 | SUN PROTECTION COMPOSITION, USE OF A COMPOSITION AND METHOD TO MANUFACTURE THE COMPOSITION |
PCT/BR2017/050392 WO2019119078A1 (en) | 2017-12-19 | 2017-12-19 | Sun care composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/BR2017/050392 WO2019119078A1 (en) | 2017-12-19 | 2017-12-19 | Sun care composition |
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WO2019119078A1 true WO2019119078A1 (en) | 2019-06-27 |
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PCT/BR2017/050392 WO2019119078A1 (en) | 2017-12-19 | 2017-12-19 | Sun care composition |
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BR (1) | BR112020011071B1 (en) |
WO (1) | WO2019119078A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3124698A1 (en) * | 2021-06-30 | 2023-01-06 | L'oreal | Composition comprising at least one UV screening agent, boron nitride, and a nonionic surfactant of ester type |
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2017
- 2017-12-19 BR BR112020011071-0A patent/BR112020011071B1/en active IP Right Grant
- 2017-12-19 WO PCT/BR2017/050392 patent/WO2019119078A1/en active Application Filing
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3124698A1 (en) * | 2021-06-30 | 2023-01-06 | L'oreal | Composition comprising at least one UV screening agent, boron nitride, and a nonionic surfactant of ester type |
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BR112020011071B1 (en) | 2022-09-20 |
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