SPF enhancers and sun care formulations containing them

Abstract

-Si(R 1 A functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups is provided as an SPF enhancer. In the formula, each R 1 Independently, C 1~10 The maltodextrin-based polymer is a linear or branched saturated alkyl group, and has 1 to 15 dextrose equivalents (DE), while the functionalized maltodextrin has 1.7 to 3 -Si(R) 1 The functionalized maltodextrin has three substitution degrees (DS) and does not contain vinyl carbon. Sun care formulations containing the above-mentioned SPF enhancers and methods for using them are also provided.

Description

[Technical Field]

[0001] This invention relates to an SPF enhancer and a sun care formulation containing the same. Specifically, this invention relates to -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups, in the formula, each R 1 Independently, C 1~10 The maltodextrin-based polymer is a linear or branched saturated alkyl group, and has 1 to 15 dextrose equivalents (DE), while the functionalized maltodextrin has 1.7 to 3 -Si(R) 1 The present invention relates to a functionalized maltodextrin having three substitution degrees (DS) and not containing vinyl carbon, as well as a sun care enhancer and a sun care formulation containing the sun care enhancer.

[0002] The harmful effects of sunlight on human skin are well documented. Six percent of the solar energy reaching the Earth's surface is ultraviolet (UV) radiation with wavelengths between 290 and 400 nm. This radiation is divided into two components: (i) low-energy UVA rays with wavelengths between 320 and 400 nm, and (ii) high-energy UVB rays with wavelengths between 290 and 320 nm. Although the UV portion of solar energy is relatively small, it induces almost 99% of all side effects from sun exposure. For example, high-energy UVB rays cause sunburn, the appearance of skin aging, and skin cancer. For example, low-energy UVA rays cause direct sunburn and erythema (abnormal redness) of the skin, and contribute to the appearance of skin aging.

[0003] By avoiding direct exposure to sunlight, individuals can avoid the serious effects caused by exposure to UV radiation. However, for some people, avoiding such exposure is difficult due to the nature of their work. Furthermore, some people voluntarily expose their skin to the sun, for example, to get a tan. Therefore, protection from the harmful effects of the sun is important.

[0004] Protection from the harmful effects of UV radiation exposure is available in the form of topical formulations containing at least one physical UV blocker, at least one chemical UV absorber, or a combination thereof. Physical blockers include active ingredients such as titanium dioxide, zinc oxide, and red petrolatum. Chemical absorbers include active ingredients such as para-aminobenzoic acid (more commonly known as PABA), which are generally transparent upon application, become active by absorbing UV radiation, and provide selective protection against certain UV wavelengths depending on the absorption spectrum of the active ingredient in the formulation.

[0005] The effectiveness of a given sunscreen formulation is evaluated by how well it protects the skin, in terms of its Sun Protection Factor (SPF), which is defined as the ratio of the amount of energy required to produce minimal erythema on sunscreen-protected skin to the amount of energy required to produce the same level of erythema on unprotected skin.

[0006] Several chemical absorbers and physical blockers commonly used in sunscreen formulations, hereafter referred to as "UV absorbers," have been reported to have harmful toxic effects, negative sensory effects, and negative environmental impacts that may deter some people from using sunscreen. Therefore, it is desirable to reduce the level of UV absorbers present in sunscreen formulations without compromising SPF protection. Accordingly, various SPF enhancers have been developed for use in water-based sunscreen formulations to reduce the level of UV absorbers without compromising the SPF protection provided.

[0007] To this end, an approach to improve the UV absorption of a composition containing at least one UV absorber by incorporating hollowed-out latex particles is disclosed in U.S. Patent No. 5,663,213 to Jones et al. Jones et al. disclose a method for improving the UV absorption of a composition, the method comprising adding about 0.1% to about 50% by weight of latex particles to the composition based on the total weight of nonvolatile matter, the composition containing at least one UV absorber, the latex particles containing cavities and having a particle size of about 100 nm to about 380 nm, and the latex particles are added to increase the UV absorption of the composition.

[0008] Nevertheless, alcohol-based sunscreen products (such as sprays) account for up to 50% of the market. While sunscreens with high alcohol content (e.g., ethanol >60% by weight) are common, many conventional SPF enhancer products are unsuitable.

[0009] To achieve the desired SPF rating in organic carrier-based (sprayable) sun care formulations, conventional formulations incorporate high levels of expensive UV absorbers. While increasing the cost of the formulations, the incorporation of high levels of UV absorbers also negatively impacts the aesthetics of these conventional formulations, often resulting in a sticky or greasy feeling on the skin.

[0010] Therefore, there remains a need for new alcohol-based sun care formulations that provide effective SPF ratings while reducing the required level of UV absorber incorporation and improving the aesthetics of formulations in use.

[0011] This invention relates to -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups, in the formula, each R 1 Independently, C 1~10 The maltodextrin-based polymer is a linear or branched saturated alkyl group, and has 1 to 15 dextrose equivalents (DE), while the functionalized maltodextrin has 1.7 to 3 -Si(R)1 ) It provides an SPF enhancer that has a substitution degree (DS) of 3 - Si(R

[0012] The present invention relates to a dermatologically acceptable organic carrier, a UV absorber, and a functionalized maltodextrin containing a maltodextrin - based polymer functionalized with - Si(R 1 )3 groups. In the formula, each R 1 is independently a C 1~10 linear or branched saturated alkyl group, the maltodextrin - based polymer has a dextrose equivalent (DE) of 1 to 15, the functionalized maltodextrin has a substitution degree (DS) of 1.7 to 3 of - Si(R 1 )3 groups, and the functionalized maltodextrin does not contain vinyl carbon, and provides a sun care formulation.

[0013] The present invention provides a method for protecting the skin from sun exposure, which includes providing the sun care formulation of the present invention and applying the sun care formulation to the skin.

Mode for Carrying Out the Invention

[0014] The inventors have surprisingly found an SPF enhancer containing a functionalized maltodextrin containing a maltodextrin - based polymer functionalized with - Si(R 1 )3 groups. In the formula, each R 1 is independently a C 1~10 linear or branched saturated alkyl group, the maltodextrin - based polymer has a dextrose equivalent (DE) of 1 to 15, the functionalized maltodextrin has a substitution degree (DS) of 1.7 to 3 of - Si(R 1 )3 groups, and the functionalized maltodextrin does not contain vinyl carbon. The SPF enhancer of the present invention is a bio - based biodegradable material. Furthermore, the inventors have surprisingly found that the SPF enhancer of the present invention provides SPF enhancement when incorporated into an alcohol - based sunscreen formulation having desirable aesthetic properties.

[0015] Unless otherwise specified, ratios, percentages, parts, etc., are expressed by weight.

[0016] As used herein and in the appended claims, the term “dextrose equivalent, DE” refers to the degree of starch hydrolysis, specifically, Standard Analytical Method E-26, Corn Refiners Association, 6 th This refers to the reduction value of starch hydrolysate materials compared to the reduction value of equiweight dextrose, expressed as a percentage on a dry basis, as measured by the Lane and Eynon method described in edition, 1977, E-26, pp. 1-3. For example, maltodextrin with a DE of 10 has 10% of the reducing power of dextrose with a DE of 100.

[0017] As used herein and in the appended claims, the term “vinyl carbon” refers to a carbon atom involved in a double bond with another carbon atom.

[0018] With respect to functionalized maltodextrins, the term “vinyl carbon-free” as used herein and in the appended claims means that the functionalized maltodextrins contain vinyl carbon below the detectable limit.

[0019] As used herein and in the appendices, the term “dermatologically acceptable” means an ingredient typically used in personal care compositions, and is intended to emphasize that materials that are toxic when present in amounts typically found in personal care compositions are not intended as part of the present invention.

[0020] With respect to sun care formulations, the term “aesthetic features” as used herein and in the appended claims refers to visual and tactile sensory characteristics (e.g., smoothness, stickiness, lubricity, texture, color, clarity, turbidity, uniformity).

[0021] Preferably, the sun care formulation of the present invention is provided in a product form selected from the group consisting of creams, non-aqueous solutions, oils, ointments, pastes, gels, lotions, milks, foams, sticks, and suspensions. More preferably, the sun care formulation of the present invention is provided as a non-aqueous solution. Most preferably, the sun care formulation of the present invention is formulated for application to the skin using a mechanical device (e.g., a manual pump spray container, a squeeze bottle) or a pressurized aerosol container (e.g., a bag-on nozzle container, a pressurized can) to form a spray.

[0022] Preferably, the SPF enhancer of the present invention is -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups. In the formula, each R 1 Independently, C 1~10 The maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the functionalized maltodextrin has 1.7 to 3 (preferably 1.8 to 3.0, more preferably 2 to 2.8, most preferably 2.1 to 2.55) -Si(R) 1 )Having a degree of substitution (DS) of 3 groups, the functionalized maltodextrin does not contain vinyl carbon. More preferably, the SPF enhancer of the present invention is -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups, -Si(R 1 )3 groups are bonded to the maltodextrin-based polymer via CO-Si bonds, in the formula, each R 1 Independently, C 1~10The maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the functionalized maltodextrin has 1.7 to 3 (preferably 1.8 to 3.0, more preferably 2 to 2.8, most preferably 2.1 to 2.55) -Si(R) 1 Having three substitution degrees (DS), the functionalized maltodextrin does not contain vinyl carbon.

[0023] Preferably, the sun care formulation of the present invention comprises a dermatologically acceptable organic carrier (preferably 10 to 98% by weight (more preferably 25 to 92% by weight, even more preferably 35 to 85% by weight, most preferably 40 to 80% by weight) of a dermatologically acceptable organic carrier based on the weight of the sun care formulation), a UV ray absorber (preferably 0.1 to 70% by weight (more preferably 5 to 65% by weight, even more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber based on the weight of the sun care formulation), and an SPF enhancer (preferably 0.1 to 70% by weight (more preferably 1 to 15% by weight, even more preferably 1.5 to 10% by weight, most preferably 2 to 6% by weight) of an SPF enhancer based on the weight of the sun care formulation), wherein the SPF enhancer is -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups, in the formula, each R 1 Independently, C 1~10The maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the functionalized maltodextrin has 1.7 to 3 (preferably 1.8 to 3.0, more preferably 2 to 2.8, most preferably 2.1 to 2.55) -Si(R) 1 )Having three degree of substitution (DS), the functionalized maltodextrin does not contain vinyl carbon. More preferably, the sun care formulation of the present invention comprises a dermatologically acceptable organic carrier (preferably 10 to 98% by weight (more preferably 25 to 92% by weight, even more preferably 35 to 85% by weight, most preferably 40 to 80% by weight, based on the weight of the sun care formulation)), a UV ray absorber (preferably 0.1 to 70% by weight (more preferably 5 to 65% by weight, even more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight, based on the weight of the sun care formulation) and an SPF enhancer (preferably 0.1 to 70% by weight (more preferably 1 to 15% by weight, even more preferably 1.5 to 10% by weight, most preferably 2 to 6% by weight, based on the weight of the sun care formulation) and the SPF enhancer is -Si(R 1 ) Contains a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with three groups, -Si(R 1 )3 groups are bonded to the maltodextrin-based polymer via CO-Si bonds, in the formula, each R 1 Independently, C 1~10The maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the functionalized maltodextrin has 1.7 to 3 (preferably 1.8 to 3.0, more preferably 2 to 2.8, most preferably 2.1 to 2.55) -Si(R) 1 Having three substitution degrees (DS), the functionalized maltodextrin does not contain vinyl carbon.

[0024] Preferably, the maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE). More preferably, the maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the maltodextrin-based polymer is a linear or branched maltodextrin polymer containing a plurality of glucose structural units. Most preferably, the maltodextrin-based polymer has 1 to 15 (preferably 1 to 12, more preferably 1 to 10, most preferably 1 to 7) dextrose equivalents (DE), and the maltodextrin-based polymer is a linear or branched maltodextrin polymer containing a plurality of glucose structural units, wherein 90 to 100 mol% (preferably 92 to 100 mol%, more preferably 93 to 100 mol%, most preferably 94.5 to 100 mol%) of the glucose structural units are linked by α-1,4 bonds, and 0 to 10 mol% (preferably 0 to 8 mol%, more preferably 0 to 7 mol%, most preferably 0 to 5.5 mol%) of the glucose structural units are linked by α-1,6 bonds.

[0025] Preferably, the maltodextrin-based polymer contains less than 0.01% by weight of alternans, based on the weight of the maltodextrin-based polymer. More preferably, the maltodextrin-based polymer contains less than 0.001% by weight of alternans, based on the weight of the maltodextrin-based polymer. Most preferably, the maltodextrin-based polymer contains alternans below the detectable limit.

[0026] Preferably, glucose structural units in the maltodextrin-based polymer are linked by β-1,4 bonds in an amount of less than 0.1 mol% (preferably less than 0.01 mol%, more preferably less than 0.001 mol%, and most preferably below the detection limit).

[0027] Preferably, glucose structural units in the maltodextrin-based polymer are linked by β-1,3 bonds in an amount of less than 0.1 mol% (preferably less than 0.01 mol%, more preferably less than 0.001 mol%, and most preferably below the detection limit).

[0028] Preferably, the sun care formulation of the present invention contains 10 to 98% by weight (preferably 25 to 92% by weight, more preferably 35 to 85% by weight, most preferably 40 to 80% by weight) of a dermatologically acceptable organic carrier, based on the weight of the sun care formulation. More preferably, the sun care formulation of the present invention contains 10 to 98% by weight (preferably 25 to 92% by weight, more preferably 35 to 85% by weight, most preferably 40 to 80%) of a dermatologically acceptable organic carrier, wherein the dermatologically acceptable organic carrier is glycol (e.g., ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, ethoxydiglycol), C 1-10Linear or branched-chain alcohols (e.g., methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol, 2-butoxyethanol), ketones (e.g., acetone), acetates (e.g., methyl acetate), butyl cellosolve, dimethicone, polydimethylsiloxane, alkanes (e.g., isododecane, isohexane), alkanoates (e.g., methyl undecanoate), dermatologically acceptable hydrophobic ester oils (e.g., caprylic / capric triglyceride), dicaprylyl carbonate, alkyl benzoates (e.g., C 12~15 The organic carrier is selected from the group consisting of alkyl benzoate, hemisqualane, dioctyl ether, keto acid (e.g., levulinic acid), and mixtures thereof. More preferably, the sun care formulation of the present invention comprises 10 to 98% by weight (preferably 25 to 92% by weight, more preferably 35 to 85% by weight, most preferably 40 to 80%) of a dermatologically acceptable organic carrier, the dermatologically acceptable organic carrier being selected to evaporate upon application of the sun care formulation to the skin. More preferably, the sun care formulation of the present invention comprises 10 to 98% by weight (preferably 25 to 92% by weight, more preferably 35 to 85% by weight, most preferably 40 to 80%) of a dermatologically acceptable organic carrier, the dermatologically acceptable organic carrier being C 1~4 The present invention comprises a linear or branched alcohol (e.g., methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol) (preferably, the alcohol is denatured alcohol). Most preferably, the present invention comprises 10 to 98% by weight (preferably 25 to 92% by weight, more preferably 35 to 85% by weight, most preferably 40 to 80%) of a dermatologically acceptable organic carrier, the dermatologically acceptable organic carrier comprising specifically denatured ethyl alcohol (e.g., INCI: SD alcohol 40-B, INCI: denatured alcohol).

[0029] Preferably, the sun care formulation of the present invention contains 0.1 to 70% by weight (preferably 5 to 65% by weight, more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber based on the weight of the sun care formulation. More preferably, the sun care formulation of the present invention contains 0.1 to 70% by weight (preferably 5 to 65% by weight, more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber, the UV ray absorber being a physical blocker (e.g., red petrolatum, titanium dioxide, zinc oxide), a chemical absorber (e.g., 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione (INCI: avobenzone), 2-hydroxy-4-methoxyb Oxybenzone (INCI: oxybenzone), dioxybenzone, sulisobenzone, menthyl anthranilate, para-aminobenzoic acid, amyl para-dimethylaminobenzoic acid, octyl para-dimethylaminobenzoic acid, ethyl 4-bis(hydroxypropyl) para-aminobenzoic acid, polyethylene glycol (PEG-25) para-aminobenzoic acid, ethyl 4-bis(hydroxypropyl) aminobenzoic acid, diethanolamine para-methioxycinnamate, 2-ethoxyethyl Tylpara-methoxycinnamate, ethylhexylpara-methoxycinnamate, octylpara-methoxycinnamate, isoamylpara-methoxycinnamate, 2-ethylhexyl-2-cyano-3,3-diphenyl-acrylate, 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate (INCI: octocrylene), 2-ethylhexyl-2-hydroxybenzoic acid (INCI: octisalate), homomenthyl salicylate, glycerylaminobenzoic acid The following are selected from the group comprising fragrant acids, triethanolamine salicylate, diguaroyl triolate, lawsone having dihydroxyacetone, 2-phenylbenzimidazole-5-sulfonic acid, 4-methylbenzylidene camphor, avobenzone, triazine, benzotriazole, vinyl group-containing amides, cinnamic acid amides, sulfonated benzimidazoles, 3,3,5-trimethylcyclohexyl 2-hydroxybenzoic acid (INCI: homosalate), and mixtures thereof.More preferably, the sun care formulation of the present invention contains 0.1 to 70% by weight (preferably 5 to 65% by weight, more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber, and the UV ray absorber includes a mixture of UV ray absorbers. More preferably, the sun care formulation of the present invention contains 0.1 to 70% by weight (preferably 5 to 65% by weight, more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber, wherein the UV ray absorber is a mixture of UV ray absorbers comprising at least one of 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione (INCI: avobenzone), 2-ethylhexyl 2-hydroxybenzoic acid (INCI: octisalate), 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate (INCI: octocrylene), 2-hydroxy-4-methoxybenzophenone (INCI: oxybenzone), and 3,3,5-trimethylcyclohexyl 2-hydroxybenzoic acid (INCI: homosalate). Most preferably, the sun care formulation of the present invention comprises 0.1 to 70% by weight (preferably 5 to 65% by weight, more preferably 7.5 to 60% by weight, most preferably 10 to 55% by weight) of a UV ray absorber, wherein the UV ray absorber is a mixture of UV ray absorbers comprising 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione (INCI: avobenzone), 2-ethylhexyl 2-hydroxybenzoic acid (INCI: octisalete), 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate (INCI: octocrylene), and 3,3,5-trimethylcyclohexyl-2-hydroxybenzoic acid (INCI: homosalate).

[0030] Preferably, the sun care formulation of the present invention has an SPF of 10 or more (more preferably 20 or more, even more preferably 25 or more, still more preferably 30 or more, and most preferably 35 or more) (preferably the SPF of the formulation is measured as described in the examples).

[0031] Preferably, the sun care formulation of the present invention contains less than 5% by weight (more preferably less than 4% by weight, even more preferably less than 3% by weight, even more preferably less than 2% by weight, and most preferably less than 1% by weight) of water.

[0032] Preferably, the sun care formulation of the present invention further comprises an optional additive. More preferably, the sun care formulation of the present invention further comprises an optional additive, the optional additive being selected from the group consisting of film-forming agents, waterproofing agents, skin emollients, preservatives, antioxidants, fragrances, moisturizers, rheology modifiers, cosmetic modifiers, propellants, vitamins, skin protectants, oils, emulsifiers, surfactants, pearlescent agents, consistency factors, thickeners, superfatizers, stabilizers, polymers, silicone compounds, fats, waxes, lectins, phospholipids, and mixtures thereof.

[0033] Preferably, the sun care formulation of the present invention further comprises a film-forming agent. More preferably, the sun care formulation of the present invention further comprises 0.1 to 10% by weight (preferably 0.5 to 9% by weight, more preferably 0.7 to 5% by weight) of a film-forming agent. Most preferably, the sun care formulation of the present invention further comprises 0.1 to 10% by weight (preferably 0.5 to 9% by weight, more preferably 0.7 to 5% by weight) of a film-forming agent, the film-forming agent being selected to provide a film barrier when the aqueous sun care formulation of the present invention is applied to the skin. The purpose of the film barrier is to help retain the UV absorber on the skin after immersion in water.

[0034] Preferred film-forming agents include petrolatum, skin emollient esters (e.g., C 8~24 Alkyl triglycerides (preferably aliphatic C) 12~24 Alkyl triglycerides, more preferably aliphatic C >12~24This includes alkyl triglycerides (most preferably caprylic / capric triglyceride), lanolin derivatives (e.g., acetylated lanolin), superfatty oils, silicone gums, silicone elastomers, silicone resins, phenyl-functionalized silicones, silicone acrylates, dimethicone derivatives, natural and synthetic oils, fatty acids, aliphatic alcohols, waxes, acrylic copolymers, polyamides, polyesters, polysaccharides, acrylate polymers, and mixtures thereof.

[0035] Examples of acrylic copolymers include acrylamide / acrylic copolymers (e.g., Dermacryl® 79 (INCI: acrylate / octyacrylamide copolymer) available from National Starch and Chemical) and acrylate copolymers (e.g., EPITAX® 66 powder water-resistant polymer (INCI: acrylate copolymer) available from The Dow Chemical Company).

[0036] Furthermore, certain emollients exhibit a film-forming function by providing a water-resistant barrier to the skin. Examples of emollients with film-forming behavior include butyl octyl salicylate (e.g., HallBrite® BHB, available from HallStar), fatty acids (e.g., oleic acid, stearin), fatty alcohols (e.g., cetyl, hexadecyl), esters (e.g., 2,2-dimethyl-1,3-propanediyl diheptanoate (INCI: neopentyl glycol diheptanoate)), alkanes (e.g., mineral oil), ethers (e.g., polyoxypropylene butyl ether, polyoxypropylene cetyl ether), natural oils, and synthetic oils (including silicone oils).

[0037] Preferred propellants for use in the sun care formulations of the present invention include methane, ethane, propane, isobutane, n-butane, hexane, heptane, dimethyl ether, diethyl ether, fluoro-containing materials (e.g., 1,1-difluoroethane, ethyl perfluoroisobutyl ether, ethyl perfluorobutyl ether, methyl perfluoroisobutyl ether, methyl perfluorobutyl ether) and mixtures thereof. Preferred fluorine-containing propellants include Cosmetic Fluid CF-76 (INCI name: ethyl perfluorobutyl ether / ethyl perfluoroisobutyl ether) and Cosmetic Fluid CF-61 (INCI name: methyl perfluorobutyl ether / methyl perfluoroisobutyl ether).

[0038] The sun care formulation of the present invention is useful for protecting the skin. Preferably, the sun care formulation of the present invention is useful for protecting the skin from UV damage caused by exposure to sunlight. The sun care formulation of the present invention also preferably provides moisturizing of the skin, prevention and treatment of dry skin, protection of sensitive skin, improvement of skin tone and texture, masking of blemishes, and suppression of extraepidermal water loss. Accordingly, in one embodiment, the present invention provides that the sun care formulation may be used in a method for protecting the skin from UV damage, which includes topical administration of the sun care formulation to the skin (preferably mammalian skin, more preferably human skin).

[0039] Herein, several embodiments of the present invention will be described in detail in the following examples.

[0040] Synthetic S1: Silylated maltodextrin Ammonium chloride (412.4 mg, 0.05 equivalents) and Glucidex® 1 maltodextrin (DE 1, Roquette) (25.0 g, 0.154 mol, 1.0 equivalent) were mixed in a 2 CV helicone mixer (CIT) at a stirring speed of 5 Hz. The resulting mixture was transferred to a reactor. Hexamethyldisilazane (80.87 g, 3.25 equivalents) was then added dropwise to the reactor contents. Dimethyl sulfoxide (10.8 g) was then added to the reactor contents. The reactor was then sealed and continuously flushed with nitrogen. The reactor contents were stirred at 20 Hz. Heat was applied to the reactor using a heating mantle set to 40°C, and the stirring speed was increased to 50 Hz. After 30 minutes, the heating mantle was set to 50°C. The temperature setting of the heating mantle was then increased in 10°C increments over 1 hour up to 80°C. After the temperature of the reactor contents reached 71°C, the reactor contents were stirred for 1 hour. Then, the heating mantle was removed and the stirring speed was reduced to 25 Hz. When the reactor contents cooled to <50°C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Then, stirring was restarted at 25 Hz for 5 minutes. Then, stirring was stopped and the organic layer was transferred to a collection jar. Then, 100 mL of ethyl acetate was added to the reactor contents and stirring was restarted at 25 Hz for 5 minutes. Then, stirring was stopped and the organic layer was transferred to the contents of the collection jar. The contents of the collection jar were transferred to a separatory funnel and washed twice with distilled water (2 × 250 mL). The organic layer was collected in an Erlenmeyer flask and dried with sodium sulfate. Then, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 46.3 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 1.67 by 1H NMR.

[0041] Synthetic S2: Silylated maltodextrin Ammonium chloride (454.4 mg, 0.05 equivalents) and Glucidex® 1 maltodextrin (DE 1, Roquette) (27.0 g, 0.166 mol, 1.0 equivalent) were mixed in a 2 CV helicone mixer (CIT) at a stirring speed of 5 Hz. The resulting mixture was transferred to a reactor. Hexamethyldisilazane (87.34 g, 3.25 equivalents) was then added dropwise to the reactor contents. Dimethyl sulfoxide (11.66 g) was then added to the reactor contents. The reactor was then sealed and continuously flushed with nitrogen. The reactor contents were stirred at 20 Hz. Heat was added to the reactor using a heating mantle set to 92°C, and the stirring speed was increased to 50 Hz. After the temperature of the reactor contents reached 83°C, the reactor contents were stirred for 1.5 hours. The heating mantle was then removed, and the stirring speed was reduced to 25 Hz. When the reactor contents cooled to <50°C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Stirring was then restarted at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to a collection jar. Next, 100 mL of ethyl acetate was added to the reactor contents and stirring was restarted at 25 Hz for 5 minutes. Stirring was then stopped and the organic layer was transferred to the contents of the collection jar. The contents of the collection jar were transferred to a separatory funnel and washed twice with distilled water (2 × 250 mL). The organic layer was collected in an Erlenmeyer flask and dried with sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (approximately 56.6 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.1 by 1H NMR.

[0042] Synthetic S3: Silylated maltodextrin Ammonium chloride (445.4 mg, 0.05 equivalents) and Glucidex® 1 maltodextrin (DE 1, Roquette) (27.0 g, 0.167 mol, 1.0 equivalent) were mixed in a 2 CV helicone mixer (CIT) at a stirring speed of 5 Hz. The resulting mixture was transferred to a reactor. Hexamethyldisilazane (60.47 g, 2.25 equivalents) was then added dropwise to the reactor contents. Dimethyl sulfoxide (11.7 g) was then added to the reactor contents. The reactor was then sealed and continuously flushed with nitrogen. The reactor contents were stirred at 20 Hz. Heat was added to the reactor using a heating mantle set to 55°C, and the stirring speed was increased to 50 Hz. After 5 minutes, the heating mantle was set to 102°C. The reactor contents were stirred for 2 hours. The heating mantle was then removed, and the stirring speed was reduced to 25 Hz. When the reactor contents cooled to <50°C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Then, stirring was restarted at 25 Hz for 5 minutes. Then, stirring was stopped and the organic layer was transferred to a collection jar. Next, 100 mL of ethyl acetate was added to the reactor contents and stirring was restarted at 25 Hz for 5 minutes. Then, stirring was stopped and the organic layer was transferred to the contents of the collection jar. The contents of the collection jar were transferred to a separatory funnel and washed twice (2 × 250 mL) with distilled water. The organic layer was collected in an Erlenmeyer flask and dried with sodium sulfate. Then, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 407.3 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.55 by 1H NMR.

[0043] Synthetic S4: Silylated maltodextrin Ammonium chloride (33.0 mg, 0.05 equivalent) and Maltrin M250 maltodextrin (DE 23-27, Grain Processing Corporation) (2.0 g, 12.3 mM, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.48 g, 2.25 equivalents) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents, and the vial was capped with a screw-cap septum with two venting needles on top. The vial was placed on an aluminum heating block set to 85°C for 1.5 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 50 mL) with distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 4.15 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.2 by 1H NMR.

[0044] Synthetic S5: Silylated Cellulose Polysaccharide (BioSloc XV, 15.0 g, Tartas) was weighed into a 2 L three-necked flask equipped with a nitrogen inlet and a temperature control device. Solvent (N,N dimethylacetamide, 331 g, Sigma-Aldrich) was added, and the reaction mixture was placed under a nitrogen atmosphere with an outlet to avoid overpressure in the reactor. Silane (hexamethyldisilazane, 30 g, The Dow Chemical Company) was added to the reaction mixture all at once. The mixture was slowly heated to a set temperature of 130 °C and stirred for 7.5 hours. The solution was allowed to cool naturally, and then xylene (600 g, Sigma-Aldrich) was added to the reaction mixture along with an additional hexamethyldisilazane (20 g), and the mixture was stirred at a set temperature of 125 °C for 4 hours. The contents of the reactor were left overnight to cool to room temperature. The product solution was then transferred to a separatory funnel and subjected to solvent-free precipitation by dropwise addition to 2 L of vigorously stirred methanol. The product was isolated by filtration and dried overnight in a vacuum oven at 50°C. The product was then suspended in 500 mL of methanol, filtered, and dried overnight in a vacuum oven at 50°C. The product was analyzed by attenuated total internal reflection infrared radiation, and the DS was determined to be 2.23.

[0045] Synthetic S6: Silylated Cellulose Polysaccharide (E-60, 15.2 g, GP Cellulose) was weighed into a 2 L three-necked flask equipped with a nitrogen inlet and a temperature control device. Solvent (N,N dimethylacetamide, 324 g) was added, and the reaction mixture was placed under a nitrogen atmosphere with an outlet to avoid overpressure in the reactor. Silane (hexamethyldisilazane, 50.2 g, The Dow Chemical Company) was added to the reaction mixture all at once along with saccharin catalyst (850 mg, Sigma-Aldrich). The mixture was slowly heated to a set temperature of 130 °C and stirred for 5 hours. After the solution was allowed to cool naturally, xylene (400 g) was added to the reaction mixture, and the mixture was stirred at 120 °C for 8 hours. The contents of the reactor were left overnight to cool to room temperature. The cooled product solution was then transferred to a separatory funnel and subjected to solvent-free precipitation by dropwise addition to 2 L of vigorously stirred methanol. The product was isolated by filtration and dried overnight in a vacuum oven at 50 °C. Next, the product was suspended in 500 mL of methanol, then re-filtered, dried overnight in a vacuum oven at 50°C, and analyzed by attenuated total reflectance infrared to determine the DS at 2.6.

[0046] Synthetic S7: Silylated maltodextrin Ammonium chloride (33.0 mg, 0.05 equivalent) and Maltrin M200 maltodextrin (DE range 16.5-19.9, manufactured by Grain Processing Corporation) (2.0 g, 12.3 mM, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (3.58 g, 1.80 equivalent) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.75 g) was then added to the vial contents, and a septum cap with two venting needles was attached to the vial. The vial was placed on a heating block set to 80°C for 1 hour. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 50 mL) with distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 3.6 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.76 by 1H NMR.

[0047] Synthetic S8: Silylated maltodextrin Ammonium chloride (33.0 mg, 0.05 equivalent) and Maltrin M040 (DE 4-7, Grain Processing Corporation) (2.0 g, 12.3 mM, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.48 g, 2.25 equivalents) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents, and a septum cap with two venting needles was attached to the vial. The vial was placed on a heating block set to 85°C for 1.5 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 50 mL) with distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (approximately 4.15 g). The degree of substitution (DS) of -Si(CH3)3 on a maltodextrin-based polymer is: 1It was determined to be 2.5 by 1H NMR.

[0048] Synthetic S9: Silylated maltodextrin Ammonium chloride (445.4 mg, 0.05 equivalents) and Glucidex® 1 maltodextrin (DE 1, Roquette) (27.0 g, 0.166 mol, 1.0 equivalent) were mixed in a 2 CV helicone mixer (CIT) at a stirring speed of 5 Hz. The resulting mixture was transferred to a reactor. Hexamethyldisilazane (87.34 g, 3.25 equivalents) was then added dropwise to the reactor contents. Dimethyl sulfoxide (11.66 g) was then added to the reactor contents. The reactor was then sealed and continuously flushed with nitrogen. The reactor contents were stirred at 20 Hz. Heat was applied to the reactor using a heating mantle set to 50°C, and the stirring speed was increased to 50 Hz. After 20 minutes, the heating mantle was set to 100°C. The reactor contents were stirred for 2 hours. Next, the heating mantle was removed and the stirring speed was reduced to 25 Hz. When the reactor contents cooled to <50°C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Then, stirring was restarted at 25 Hz for 5 minutes. Next, stirring was stopped and the organic layer was transferred to a collection jar. Next, 100 mL of ethyl acetate was added to the reactor contents and stirring was restarted at 25 Hz for 5 minutes. Next, stirring was stopped and the organic layer was transferred to the contents of the collection jar. The contents of the collection jar were transferred to a separatory funnel and washed twice with distilled water (2 × 250 mL). The organic layer was collected in an Erlenmeyer flask and dried with sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 53 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.23 by 1H NMR.

[0049] Synthetic S10: Silylated maltodextrin Ammonium chloride (33.0 mg, 0.05 equivalent) and Glucidex® 1 maltodextrin (DE 1, Roquette) (2.0 g, 12.3 mM, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.48 g, 2.25 equivalents) was then added dropwise to the vial contents. Dimethyl sulfoxide (1 g) was then added to the vial contents, and a septum cap with two venting needles was attached to the vial. The vial was placed on a heating block set to 85°C for 2 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 50 mL) with distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. The organic layer was then concentrated under vacuum to obtain a fine white powder (approximately 3.96 g). The degree of substitution (DS) of -Si(CH3)3 on a maltodextrin-based polymer is: 1 It was determined to be 2.51 by 1H NMR.

[0050] Synthetic S11: Silylated maltodextrin Ammonium chloride (445.4 mg, 0.05 equivalents) and Glucidex® 1 maltodextrin (DE 1, Roquette) (27.0 g, 0.166 mol, 1.0 equivalent) were mixed in a 2 CV helicone mixer (CIT) at a stirring speed of 5 Hz. The resulting mixture was transferred to a reactor. Hexamethyldisilazane (87.34 g, 3.25 equivalents) was then added dropwise to the reactor contents. Dimethyl sulfoxide (11.66 g) was then added to the reactor contents. The reactor was then sealed and continuously flushed with nitrogen. The reactor contents were stirred at 20 Hz. Heat was applied to the reactor using a heating mantle set to 50°C, and the stirring speed was increased to 50 Hz. After 20 minutes, the heating mantle was set to 100°C. The reactor contents were stirred for 2 hours. Next, the heating mantle was removed and the stirring speed was reduced to 25 Hz. When the reactor contents cooled to <50°C, stirring was stopped and 400 mL of ethyl acetate was added to the reactor contents. Then, stirring was restarted at 25 Hz for 5 minutes. Next, stirring was stopped and the organic layer was transferred to a collection jar. Next, 100 mL of ethyl acetate was added to the reactor contents and stirring was restarted at 25 Hz for 5 minutes. Next, stirring was stopped and the organic layer was transferred to the contents of the collection jar. The contents of the collection jar were transferred to a separatory funnel and washed twice with distilled water (2 × 250 mL). The organic layer was collected in an Erlenmeyer flask and dried with sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain a fine white powder (approximately 56.3 g). The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.42 by 1H NMR.

[0051] Synthetic S12: Silylated maltodextrin Ammonium chloride (24.7 mg, 0.05 equivalents) and dried Glucidex® 1 maltodextrin (DE 1, Roquette) (1.5 g, 3.25 equivalents) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.85 g, 3.25 equivalents) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.8 g) was then added to the vial contents, and a septum cap with two venting needles was attached to the vial. The vial was placed on a heating block set to 90°C for 4 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (200 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 60 mL) with a 50 / 50 vol / vol mixture of brine and distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain an off-white crystalline solid, which was easily ground into a fine powder using a spatula. The product powder was vacuum-dried in an oven at 50°C for 5 hours. The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.42 by 1H NMR.

[0052] Synthetic S13: Silylated maltodextrin Ammonium chloride (24.7 mg, 0.05 equivalent) and dried Maltrin M150 maltodextrin (DE 13-17, Grain Processing Corporation) (1.5 g, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (4.85 g, 3.25 equivalents) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.8 g) was then added to the vial contents, and a septum cap with two venting needles was attached to the vial. The vial was placed on a heating block set to 90°C for 2.5 hours. The vial contents were then cooled to <50°C and diluted with ethyl acetate (200 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 60 mL) with a 50 / 50 vol / vol mixture of brine and distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain an off-white crystalline solid, which was easily ground into a fine powder using a spatula. The product powder was vacuum-dried in an oven at 50°C for 5 hours. The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.64 by 1H NMR.

[0053] Synthetic S14: Silylated maltodextrin Ammonium chloride (33.0 mg, 0.05 equivalent) and Maltrin M200 maltodextrin (DE 20-23, Grain Processing Corporation) (2.0 g, 1.0 equivalent) were added to a 25 mL scintillation vial. Hexamethyldisilazane (3.58 g, 1.80 equivalent) was then added dropwise to the vial contents. Dimethyl sulfoxide (0.75 g) was then added to the vial contents, and the vial was capped with a screw-cap septum with two venting needles on top. The vial was placed on a heating block set to 80°C for 1 hour. The vial contents were then cooled to <50°C and diluted with ethyl acetate (150 mL). The organic layer was transferred to a separatory funnel and washed three times (3 × 50 mL) with a 50 / 50 vol / vol mixture of brine and distilled water. The organic layer was collected in an Erlenmeyer flask and dried over sodium sulfate. Next, the organic layer was concentrated under vacuum to obtain a fine white powder. The product powder was vacuum-dried in an oven at 50°C for 5 hours. The degree of substitution (DS) of -Si(CH3)3 on the maltodextrin-based polymer was: 1 It was determined to be 2.45 by 1H NMR.

[0054] Solubility screening (2% by weight) The solubility of the products of synthesis S1-S7 was evaluated on different supports by individually combining the products of synthesis S1-S7 (0.1 g) with various solvents (4.9 g) in separate vials, as shown in Table 1. The resulting 2 wt% solutions were stirred with a magnetic stirring rod at approximately 22°C for 1 hour. The results of the support and solubility observations are provided in Table 1.

[0055] [Table 1]

[0056] Solubility screening (50% by weight) The solubility of the synthesized products S2, S3, and S7 (2g) was evaluated in isododecane (2g) as shown in Table 2. The resulting 50% by weight solution was stirred using a magnetic stirring rod at approximately 22°C for 1 hour. The results of the support and solubility observations are provided in Table 2.

[0057] [Table 2]

[0058] Viscosity in isododecane The products of synthesis S5, S6, and S9 were dissolved in isododecane at different concentrations as shown in Table 3. The viscosity of the resulting solutions was then determined at approximately 22°C and 100 rpm using a Brookfield DV-111-ultra viscometer equipped with an SC4-28 spindle. The results are shown in Table 3.

[0059] [Table 3]

[0060] Comparative Examples CF1-CF6 and Examples F1-F4: Sun Care Formulations A sun care formulation having the composition shown in Table 4 was prepared. Avobenzone, caprylic / capric triglyceride, and ethylhexyl salicylate were mixed in a flask and heated to 60°C until all of the avobenzone had melted. The heat source was removed, and the remaining components except ethanol were added to the contents of the flask. Once the contents of the flask had cooled to <30°C, ethanol was added while stirring for 30 minutes until the contents of the flask were homogenized.

[0061] [Table 4]

[0062] Transparency of sun care formulations The transparency of the sun care formulations prepared according to Comparative Examples CF1-CF3 and Example F3 was observed. The observation results are shown in Table 5.

[0063] viscosity The viscosity of the sun care formulations prepared according to Comparative Examples CF1-CF3 and Example F1 was determined using a TA Instruments DHR-3 rheometer equipped with a spindle 27 rotating at 250 rpm at approximately 22°C. The measured viscosities are reported in Table 5.

[0064] [Table 5]

[0065] In vitro SPF measurement The SPF performance of sun care formulations prepared according to Comparative Examples CF1, CF2, CF4-CF6 and Examples F1-F4 was evaluated. Subsequently, the SPF performance of each sun care formulation was tested three times using in vitro technology according to the following protocol.

[0066] The substrate used for in vitro SPF measurement was a roughened PMMA substrate (6μm-HD6 is available from Schonberg GmbH & Co. KG). The sun care formulation to be tested was applied to three separate roughened 5cm × 5cm PMMA substrates using an RDS#7 wired drawdown bar, at a concentration of 1.3 mg / cm². 2 A uniform layer of sun care formulation was applied to the surface of the PMMA substrate at a certain rate. Each deposited layer of sun care formulation was dried for 60 minutes under ambient laboratory conditions. Next, the UV absorption of each dried layer of sun care formulation at 290 nm and 400 nm was measured at nine separate points using a Labsphere UV-2000S spectrometer. Then, the in vitro SPF value was calculated for each sun care formulation prepared according to Comparative Examples CF1, CF2, CF4-CF6 and Examples F1-F4 based on the UV absorption measurement results. The average of three samples of each sun care formulation prepared according to Comparative Examples CF1, CF2, CF4-CF6 and Examples F1-F4 is reported in Table 6.

[0067] [Table 6]

Claims

1. It is an SPF enhancer, -Si(R １ ) ３ The formula comprises a functionalized maltodextrin containing a maltodextrin-based polymer functionalized with a group, where each R １ Independently, C １～１０ The maltodextrin-based polymer is a linear or branched saturated alkyl group, and the maltodextrin-based polymer has 1 to 15 dextrose equivalents (DE), and the functionalized maltodextrin has 1.7 to 3 -Si(R) １ ) ３ The functionalized maltodextrin has a degree of substitution (DS) of groups and does not contain vinyl carbon, and is an SPF enhancer.

2. Sun care formulation, Dermatologically acceptable organic carriers, UV ray absorber, The SPF enhancer according to claim 1, A sun care product containing [this ingredient].

3. The dermatologically acceptable organic carriers are glycols (e.g., ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, ethoxydiglycol), C １～４ Linear or branched alcohols (e.g., methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol), acetone, methyl acetate, butyl cellsolve, dimethicone, isododecane, isohexadecane, methyl undecanoate, dermatologically acceptable hydrophobic ester oils (e.g., caprylic / capric triglyceride), dicaprylyl carbonate, C １２～１５ A sun care formulation according to claim 2, selected from the group consisting of alkyl benzoate, hemisqualane, dioctyl ether, levulinic acid, and mixtures thereof.

4. The sun care formulation according to claim 3, wherein the UV ray absorber is selected from the group consisting of physical blocking agents, chemical absorbers, and mixtures thereof.

5. The UV absorbers are red petrolatum, titanium dioxide, zinc oxide, 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione, 2-hydroxy-4-methoxybenzophenone, dioxybenzone, surisobenzone, menthyl anthranilate, para-aminobenzoic acid, amyl para-dimethylaminobenzoic acid, octyl para-dimethylaminobenzoic acid, ethyl 4-bis(hydroxypropyl) para-aminobenzoic acid, polyethylene glycol (PEG-25) para-aminobenzoic acid, ethyl 4-bis(hydroxypropyl) aminobenzoic acid, diethanolamine para-methioxycinnamate, 2-ethoxyethyl para-methoxycinnamate, ethylhexyl para-methoxycinnamate, octyl para-methoxycinnamate, iso A sun care formulation according to claim 3, selected from the group consisting of amyl para-methoxycinnamate, 2-ethylhexyl-2-cyano-3,3-diphenyl-acrylate, 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate, 2-ethylhexyl-2-hydroxybenzoic acid, homomenthyl salicylate, glycerylaminobenzoic acid, triethanolamine salicylate, diguaroyl triolate, lawsone having dihydroxyacetone, 2-phenylbenzimidazole-5-sulfonic acid, 4-methylbenzylidene camphor, avobenzone, triazine, benzotriazole, vinyl group-containing amide, cinnamic acid amide, sulfonated benzimidazole), 3,3,5-trimethylcyclohexyl 2-hydroxybenzoic acid, and mixtures thereof.

6. The sun care formulation according to claim 3, wherein the UV ray absorber is a mixture of UV ray absorbers comprising 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione, 2-ethylhexyl 2-hydroxybenzoic acid, 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate, and 3,3,5-trimethylcyclohexyl-2-hydroxybenzoic acid.

7. The dermatologically acceptable organic carrier is C １～４ The sunscreen preparation according to claim 6, comprising a linear or branched alcohol.

8. The dermatologically acceptable organic carrier comprises ethanol, as described in claim 7.

9. The sun care formulation according to claim 8, further comprising a dermatologically acceptable hydrophobic ester oil.

10. A method of protecting the skin from sun exposure, To provide a sun care formulation according to claim 2, Applying the aforementioned sun care formulation to the skin, Methods that include...

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