DE102019212329A1 - Cosmetic O / W emulsion with succinoglucan and lipophilic UV filter substances - Google Patents

Abstract

Cosmetic oil-in-water emulsions (O / W emulsions) containing, in addition to a water phase, one or more oil phases dispersed therein and a) optionally one or more anionic emulsifiers and / or b) optionally one or more nonionic emulsifiers andc) one or more succinoglucans andd ) one or more lipophilic UV filter substances.

Description

The present invention relates to a cosmetic preparation containing succinoglucan and lipophilic UV filter substances.

The desire to look beautiful and attractive is inherently rooted in people. Even if the ideal of beauty has changed over time, striving for a flawless appearance has always been the goal of people. The condition and appearance of the skin play a key role in a beautiful and attractive appearance.

In order for the skin to be able to fully fulfill its biological functions, it needs regular cleaning and care. The cleaning of the skin serves to remove dirt, sweat and residues of dead skin particles, which form an ideal breeding ground for pathogens and parasites of all kinds. Skin care products are mostly used to moisturize and re-oil the skin. Often, active ingredients are added to them that regenerate the skin and, for example, are intended to prevent and reduce its premature aging (e.g. the formation of fine lines and wrinkles).

Skin care products are usually made up of emulsions. Emulsions are generally understood to mean heterogeneous systems which consist of two liquids which are immiscible or only partially miscible with one another, which are usually referred to as phases and in which one of the two liquids is dispersed in the other liquid in the form of very fine droplets. Externally and with the naked eye, emulsions appear homogeneous.

If the two liquids are water and oil and if oil droplets are finely distributed in water, then it is an oil-in-water emulsion (O / W emulsion, e.g. milk). The basic character of an O / W emulsion is shaped by the water. In the case of a water-in-oil emulsion (W / O emulsion, e.g. butter), the principle is reversed, with the basic character being determined by the oil.

In order to keep emulsions stable over a longer period of time and to prevent the phases from separating, so-called emulsifiers are added to the emulsions. Emulsifiers are usually molecules with a polar, lipophilic structural element and a non-polar, lipophilic structural element. At the end of the 1940s a system was developed to make the selection of emulsifiers easier. A so-called HLB value (a dimensionless number between 0 and 20) is assigned to each emulsifier, which indicates whether the water or oil solubility is preferred. Numbers below 8 indicate oil-soluble, more hydrophobic emulsifiers, numbers above 8 water-soluble, more hydrophilic emulsifiers.

In the production of an emulsion, the water phase is combined with the lipid phase (oil phase) with stirring, whereby the droplets of the inner phase of the emulsion have to be reduced to a size of less than 10 µm so that the emulsion becomes stable.

The trend away from elegant paleness towards "healthy, sporty brown skin" has been unbroken for years. In order to achieve this, people expose their skin to solar radiation, as this causes pigment formation in the sense of melanin. However, the ultraviolet radiation of sunlight also has a damaging effect on the skin. In addition to the acute damage (sunburn), long-term damage such as an increased risk of developing skin cancer occurs with excessive exposure to light from the UVB range (wavelength: 280-320 nm). The excessive exposure to UVB and UVA radiation (wavelength: 320-400 nm) also leads to a weakening of the elastic and collagen fibers of the connective tissue. This leads to numerous phototoxic and photoallergic reactions and leads to premature aging of the skin.

To protect the skin, a number of light protection filter substances have therefore been developed that can be used in cosmetic preparations. These UVA and UVB filters are summarized in most industrialized countries in the form of positive lists such as Appendix 7 of the Cosmetics Ordinance.

The use of lipophilic UV filters in emulsions often leads to a destabilization of these systems and a resulting separation of the phases. Long-term stabilization of O / W emulsions with UV filters, even at elevated temperatures, is therefore desirable.

1. a) ein oder mehrere Succinoglucane und
2. b) eine oder mehrere lipophile UV-Filtersubstanzen.

The object is surprisingly achieved by cosmetic oil-in-water emulsions (O / W emulsions) containing, in addition to a water phase, one or more oil phases dispersed therein as well

1. a) one or more succinoglucans and
2. b) one or more lipophilic UV filter substances.

Succinoglucan is a polysaccharide partially esterified with succinic acid, which can be obtained, for example, as a fermentation product from Agrobacterium tumefaciens. Succinoglucan is released into the surrounding medium as a microbial exopolysaccharide.

The backbone of the succinoglucan is mainly formed by glucose monomers, but galactose can advantageously also be polymerized. A particularly advantageous succinoglucan has molar ratios of glucose to galactose of 8-6: 1, in particular approximately 7: 1.

Advantageously, according to the invention, on a statistical average, every eighth to twelfth sugar molecule of the polymeric backbone is esterified with a molecule of succinic acid, preferably about every tenth sugar molecule.

It can also be advantageous to bind additional functional molecules to the sugar molecules, for example pyruvic acid, which can be coupled via acetal formation.

Advantageously according to the invention, on a statistical average, every fifth to twentieth sugar molecule of the polymeric backbone is coupled to a molecule of pyruvic acid, preferably about every eighth sugar molecule.

The chemical structure of succinoglucan is illustrated as follows:

Succinoglucan is readily soluble in water and can be used as a thickener. The use of succinoglucan in cosmetic emulsions is known per se to the person skilled in the art, but the prior art could not point the way to the present invention.

It is advantageous according to the invention if the emulsion according to the invention is characterized in that the content of succinoglucan in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.01 and 1.5% by weight, particularly preferably between 0 , 1 and 1.0% by weight, each based on the total weight of the emulsion.

It is advantageous according to the invention if the emulsion has one or more oil-in-water emulsifiers (O / W emulsifiers) in a total concentration of 0.05 to 5.0% by weight and preferably in a total concentration of 2.0 to 4.0% by weight, based in each case on the total weight of the emulsion.

According to the invention it is particularly advantageous if the emulsion according to the invention is characterized in that the content of one or more anionic emulsifiers in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 2% by weight, particularly preferred between 0.1 and 1.0% by weight, based in each case on the total weight of the emulsion.

According to the invention, it is particularly advantageous if the emulsion according to the invention is characterized in that the content of one or more nonionic emulsifiers in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 3% by weight, particularly is preferably between 0.1 and 2% by weight, based in each case on the total weight of the emulsion.

According to the invention, it is particularly advantageous if the emulsion according to the invention is characterized in that the content of one or more lipophilic UV filter substances in the emulsion is from 0.001 to 20% by weight and preferably between 0.05 and 15% by weight, particularly is preferably between 0.1 and 10% by weight, based in each case on the total weight of the emulsion.

Advantageous lipophilic UV-A filter substances for the purposes of the present invention are, for. B. Advantageous UV-A filter substances for the purposes of the present invention are dibenzoyl methane derivatives, in particular 4- (tert-butyl) -4'-methoxydibenzoyl methane (CAS No. 70356-09-1), which is available from Givaudan under the Parsol brand ® 1789 and sold by Merck under the trade name Eusolex ® 9020.

Advantageous UV filter substances for the purposes of the present invention are also so-called broadband filters, i.e. filter substances that absorb both UV-A and UV-B radiation.

wobei R¹, R² und R³ unabhängig voneinander gewählt werden aus der Gruppe der verzweigten und unverzweigten Alkylgruppen mit 1 bis 10 Kohlenstoffatomen bzw. ein einzelnes Wasserstoffatom darstellen. Insbesondere bevorzugt sind das 2,4-Bis-{[4-(2-Ethyl-hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazin (INCI: Aniso Triazin), welches unter der Handelsbezeichnung Tinosorb® S bei der BASF AG erhältlich ist, und das 4,4',4"-(1,3,5-Triazin-2,4,6-triyltriimino)-tris-benzoesäure-tris(2-ethylhexylester), synonym: 2,4,6-Tris-[anilino-(p-carbo-2'-ethyl-1'-hexyloxy)]-1,3,5-triazin (INCI: Octyl Triazone), welches von der BASF Aktiengesellschaft unter der Warenbezeichnung UVINUL® T 150 vertrieben wird.Advantageous broadband filters or UV-B filter substances are, for example, bis-resorcinyltriazine derivatives with the following structure:

where R ¹ , R ² and R ³ are selected independently of one another from the group of branched and unbranched alkyl groups with 1 to 10 carbon atoms or represent a single hydrogen atom. 2,4-Bis - {[4- (2-ethylhexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine (INCI: Aniso Triazine) are particularly preferred ), which is available under the trade name Tinosorb® S from BASF AG, and the 4,4 ', 4 "- (1,3,5-triazine-2,4,6-triyltriimino) -tris-benzoic acid-tris ( 2-ethylhexyl ester), synonym: 2,4,6-tris- [anilino- (p-carbo-2'-ethyl-1'-hexyloxy)] - 1,3,5-triazine (INCI: Octyl Triazone), which is sold by BASF Aktiengesellschaft under the trade name UVINUL® T 150.

aufweisen, sind vorteilhafte UV-Filtersubstanzen im Sinne der vorliegenden Erfindung, beispielsweise die in der Europäischen Offenlegungsschrift EP 570 838 A1 beschriebenen s-Triazinderivate, deren chemische Struktur durch die generische Formel

wiedergegeben wird, wobei

R

einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkylrest, gegebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen, darstellt,

X

ein Sauerstoffatom oder eine NH-Gruppe darstellt,

R₁

einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkylrest, gebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen, oder ein Wasserstoffatom, ein Alkalimetallatom, eine Ammoniumgruppe oder eine Gruppe der Formel

bedeutet, in welcher

A

einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkyl- oder Arylrest darstellt, gegebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen,

R₃

ein Wasserstoffatom oder eine Methylgruppe darstellt,

n

eine Zahl von 1 bis 10 darstellt,

R₂

einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkylrest, gegebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen, darstellt, wenn X die NH-Gruppe darstellt, und einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkylrest, gegebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen, oder ein Wasserstoffatom, ein Alkalimetallatom, eine Ammoniumgruppe oder eine Gruppe der Formel

bedeutet, in welcher

A

einen verzweigten oder unverzweigten C₁-C₁₈-Alkylrest, einen C₅-C₁₂-Cycloalkyl- oder Arylrest darstellt, gegebenenfalls substituiert mit einer oder mehreren C₁-C₄- Alkylgruppen,

R₃

ein Wasserstoffatom oder eine Methylgruppe darstellt,

n

eine Zahl von 1 bis 10 darstellt, wenn X ein Sauerstoffatom darstellt.

Also other UV filter substances, which the structural motif

have, are advantageous UV filter substances for the purposes of the present invention, for example those in the European laid-open specification EP 570 838 A1 described s-triazine derivatives, their chemical structure by the generic formula

is played back, where

R.

represents a branched or unbranched C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups,

X

represents an oxygen atom or an NH group,

R ₁

a branched or unbranched C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups, or a hydrogen atom, an alkali metal atom, an ammonium group or a group of the formula

means in which

A.

represents a branched or unbranched C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl or aryl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups,

R ₃

represents a hydrogen atom or a methyl group,

n

represents a number from 1 to 10,

R ₂

represents a branched or unbranched C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups, when X represents the NH group, and a branched or unbranched one C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups, or a hydrogen atom, an alkali metal atom, an ammonium group or a group of the formula

means in which

A.

represents a branched or unbranched C ₁ -C ₁₈ -alkyl radical, a C ₅ -C ₁₂ -cycloalkyl or aryl radical, optionally substituted by one or more C ₁ -C ₄ -alkyl groups,

R ₃

represents a hydrogen atom or a methyl group,

n

represents a number from 1 to 10 when X represents an oxygen atom.

wiedergegeben wird, welches im Folgenden auch als Dioctylbutylamidotriazon (INCI: Dioctylbutamidotriazone) bezeichnet wird und unter der Handelsbezeichnung UVASORB HEB bei Sigma 3V erhältlich ist.A particularly preferred UV filter substance for the purposes of the present invention is also an asymmetrically substituted s-triazine, the chemical structure of which is given by the formula

is reproduced, which is also referred to below as Dioctylbutylamidotriazon (INCI: Dioctylbutamidotriazone) and is available under the trade name UVASORB HEB from Sigma 3V.

wiedergegeben wird, wobei R₁ , R₂ und A₁ verschiedenste organische Reste repräsentieren.Bis-resorcinyltriazine derivatives to be used with preference are also described in European Offenlegungsschrift 775 698, the chemical structure of which is given by the generic formula

is shown, where R ₁ , R ₂ and A _{1 represent a} wide variety of organic radicals.

The 2,4-bis - {[4- (3-sulfonato) -2-hydroxy-propyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1, 3,5-triazine sodium salt, the 2,4-bis - {[4- (3- (2-propyloxy) -2-hydroxy-propyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) - 1,3,5-triazine, 2,4-bis - {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- [4- (2-methoxyethyl-carboxyl) -phenylamino] -1,3,5-triazine, 2,4-bis - {[4- (3- (2-propyloxy) -2-hydroxy-propyloxy) -2-hydroxy] -phenyl} -6- [4- ( 2-ethyl-carboxyl) -phenylamino] -1,3,5-triazine, the 2,4-bis - {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (1 - methyl-pyrrol-2-yl) -1,3,5-triazine, the 2,4-bis - {[4-tris (trimethylsiloxysilylpropyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine, the 2,4-bis - {[4- (2 "- methylpropenyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5- triazine and the 2,4-bis - {[4- (1 ', 1', 1 ', 3', 5 ', 5', 5'-heptamethylsiloxy-2 "-methyl-propyloxy) -2-hydroxy] - phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine.

gekennzeichnet ist und unter der Handelsbezeichnung Tinosorb® M bei der CIBA-Chemikalien GmbH erhältlich ist.An advantageous broadband filter for the purposes of the present invention is 2,2'-methylenebis (6- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol), which by the chemical structural formula

and is available under the trade name Tinosorb® M from CIBA-Nahrungsmittel GmbH.

gekennzeichnet ist.Another advantageous broadband filter for the purposes of the present invention is 2- (2H-benzotriazol-2-yl) -4-methyl-6- [2-methyl-3- [1,3,3,3-tetramethyl-1 - [( trimethylsilyl) oxy] disiloxa-nyl] propyl] -phenol (CAS-No .: 155633-54-8) with the INCI name Drometrizole Trisiloxane, which by the chemical structural formula

is marked.

The UV-B filters can be oil-soluble or water-soluble. Advantageous oil-soluble UV-B filter substances are, for. For example: 3-benzylidene camphor derivatives, preferably 3- (4-methylbenzylidene) camphor, 3-benzylidene camphor; 4-aminobenzoic acid derivatives, preferably 4- (dimethylamino) benzoic acid (2-ethylhexyl) ester, 4- (dimethylamino) benzoic acid amyl ester; 2,4,6-trianilino (p-carbo-2'-ethyl-1'-hexyloxy) -1,3,5-triazine; Esters of benzalmalonic acid, preferably 4-methoxybenzalmalonic acid di (2-ethylhexyl) ester; Esters of cinnamic acid, preferably 4-methoxycinnamic acid (2-ethylhexyl) ester, 4-methoxycinnamic acid isopentyl ester; Derivatives of benzophenone, preferably 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone and UV filters bound to polymers.

Another light protection filter substance to be used advantageously according to the invention is ethylhexyl-2-cyano-3,3-diphenyl acrylate (octocrylene), which is available from BASF under the name Uvinul® N 539 and is characterized by the following structure:

It can also be of considerable advantage to use polymer-bound or polymeric UV filter substances in preparations according to the present invention, in particular those as described in WO-A-92/20690.

It may also be advantageous to incorporate further UV-A and / or UV-B filters into cosmetic or dermatological preparations according to the invention, for example certain salicylic acid derivatives such as 4-isopropylbenzyl salicylate, 2-ethylhexyl salicylate (= octyl salicylate), homomenthyl salicylate.

Preparations according to the invention, characterized in that the UV light absorbing substance or substances are selected or are selected from the group of butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, octocrylene, ethylhexyl salicylate, phenylbenzimidazolesulfonic acid, disodium phenyldibenzimidazole-benzo-phenyldibenzimidazoletetroxizolate, Homosalate, benzene-1,4-di (2-oxo-3-bornylidenemethyl-10-sulfonic acid, polysilicone-15, ethylhexyl triazone, diethylhexylbutamidotriazone, isoamyl p-methoxycinnamate, diethylamino hydroxybenzoyl, hexoxylbenzoate, methylenebisbenzotriazolyltriazole, methylenebisbenzotriazolyltriazole, methylenebisbenzotriazolyltriazole, bis-ethylbenzoyl-benzoate, methylene-bis-benzotriazolyltriazole, bis-ethylbenzoylbenzoate, methylene-bis-benzotriazolyltriazole , 4-methylbenzylidene camphor, 2,4-bis- [5 -] (dimethylpropyl) benzoxazol-2-yl- (4-phenyl) -imino] -6- (2-ethylhexyl) -imino-1,3,5-triazine and / or (2- {4- [2- (4-Diethylamino-2-hydroxy-benzoyl) -benzoyl] -piperazine-1-carbonyl} -phenyl) - (4-diethylamino-2-hydroxyphenyl) -methanone .

It is advantageous according to the invention if the emulsion according to the invention is characterized in that lipophilic emulsifiers with an HLB value of greater than or equal to 8 are used as O / W emulsifiers. The HLB value of emulsifiers can be found in the usual standard works (e.g. Fiedler, Lexicon of Auxiliaries for Pharmacy, Cosmetics and Adjacent Areas, Editio Cantor Verlag, Aulendorf).

According to the invention, it is preferred if the emulsion according to the invention is characterized in that glyceryl stearate citrate (CAS 39175-72-9, INCI Glyceryl Stearate Citrate, e.g. Imwitor 370 from Hüls), polyglyceryl-3 methylglucose distearate ( INCI Polyglyceryl Methyl Glucose Distearate, e.g. Tego Care 450 from Evonik) and / or polyethylene glycol (2000) monostearate (INCI; PEG-40 stearate) can be used.

In an embodiment preferred according to the invention, the emulsion according to the invention contains potassium cetyl phosphate, sodium cetearyl sulfate, sodium stearyl glutamate, alkali salts of saturated fatty acids of chain length C14-C22, in particular sodium stearate, as an anionic emulsifier.

In a further embodiment preferred according to the invention, the emulsion according to the invention contains one or more polyglyceryl fatty acid esters as nonionic emulsifiers. The polyglyceryl fatty acid ester particularly preferred according to the invention is polyglyceryl-10 stearate (INCI polyglyceryl-10 stearate).

According to the invention, it is particularly advantageous if the emulsion according to the invention is characterized in that the content of one or more anionic emulsifiers in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 2% by weight, particularly is preferably between 0.1 and 1.0% by weight, based in each case on the total weight of the emulsion.

According to the invention, it is particularly advantageous if the emulsion according to the invention is characterized in that the content of one or more nonionic emulsifiers, in particular one or more polyglyceryl fatty acid esters, especially polyglyceryl-10 stearate in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 3% by weight, particularly preferably between 0.1 and 2.0% by weight, based in each case on the total weight of the emulsion.

The emulsion according to the invention can have the consistency of an ointment, cream or low-viscosity lotion or represent an ointment, cream or low-viscosity lotion.

It is preferred according to the invention if the process according to the invention is carried out in the form of the hot-hot process. In this process, a hot oil and water phase are combined.

According to the invention, it is particularly preferred if the process is carried out at a temperature not above 85.degree.

According to the invention, the emulsion can advantageously be in the form of an ointment, cream or lotion (optionally sprayable).

According to the invention, the emulsion can advantageously also be used as a spray or as a soaking medium for a plaster or cloth. Therefore, plasters and tissues impregnated with the emulsion according to the invention are also according to the invention.

The water phase of the emulsion according to the invention can advantageously contain customary cosmetic auxiliaries, such as alcohols, in particular those with a low carbon number, preferably ethanol and / or isopropanol, diols or polyols with a low carbon number and their ethers, preferably propylene glycol, glycerol, ethylene glycol, ethylene glycol monoethyl or monobutyl ether, hexanediol, octanediol, glyceryl caprylate, ethylhexylglycerol, methylpropanediol, propylene glycol monomethyl, monoethyl or monobutyl ether, diethylene glycol monomethyl or monoethyl ether, and analogous products, also polymers, phenoxyethanol, benzene chloro-alcohols, self-electrolytes, benzyl alcohols, benzene, benzoyl alcohols Repellants and, in particular, one or more thickeners, which can advantageously be selected from the group of polysaccharides or their derivatives, e.g. B. xanthan gum, carrageenan, gellan gum, scleroglucans, starches and celluloses, hyaluronic acid.

The oil phase according to the invention can contain all conventional constituents of oil, fat and wax components used in cosmetics.

According to the invention, the emulsion according to the invention can advantageously contain cosmetic active and care substances, for example the UV light protection filters approved according to the Cosmetics Ordinance. According to the invention, such active ingredients can advantageously be present in concentrations of 0.01 to 30% by weight, based on the total weight of the preparation.

Additional care substances that can be used are niacinamide, panthenol, aloe vera, vitamin E, vitamin A, vitamin A palmitate, vitamin C, vitamin C phosphate, vitamin C palmitate, vitamin C glucoside, coenzyme Q10 (ubiquinone), creatine, creatinine, taurine, Folic acid, alpha-glycosyl rutin, amino acids (e.g. glycine, histidine, alanine, arginine), carnosine, unsaturated fatty acids and their esters, especially di- and triglycerides (e.g. γ-linoleic acid, linoleic acid, oleic acid), mannose, magnolia bark extract, magnolol, honokiol , Dihydromyricetin, burdock fruit extract, arctine, extracts of milk thistle, silymarin, ingredients of licorice extracts such as glycyrrhetinic acid and licochalcone A in concentrations of 0.001 to 5% by weight, based on the total weight of the preparation.

According to the invention, the preparation according to the invention particularly preferably contains alpha-hydroxy acids and / or their salts as further constituents. According to the invention, lactic acid / lactates or citric acid / citrates are preferably used in a concentration of 0.01 to 5% by weight, based on the total weight of the preparation.

The preparation according to the invention can contain perfumes in any desired composition and amount.

The following examples are intended to illustrate the present invention without restricting it. The data always relate to% by weight, unless otherwise stated. phase ingredients Ex. 1 Ex. 2 Ex. 3 Ex. 4 Phase a Glycerin 5 5 5 5 Aqua ad 100 ad 100 ad 100 ad 100 Sodium stearoyl glutamate 0.2 0.2 0.2 0.2 Phase B Succinoglycan gum - 0.3 - - Xanthan gum - - 0.3 - Carrageenan - - - 0.3 Phase C. Cetearyl alcohol 2 2 2 2 Hydrogenated coco-glycerides 2 2 2 2 Dicaprylyl ether 8th 8th 8th 8th Butyl methoxydibenzoylmethane 4th 4th 4th 4th Phase D. Phenoxyethanol 0.8 0.8 0.8 0.8 Methyl parabens 0.3 0.3 0.3 0.3 Trisodium EDTA 0.2 0.2 0.2 0.2 storage At room temperature After 24h stable stable stable stable Day 7 stable stable stable stable at 40 ° C After 24h stable stable stable stable Day 7 Phase separation stable stable Phase separation at 50 ° C After 24h stable stable stable Phase separation after 9 h Day 7 Phase separation after 2 days stable Phase separation 12 h cycle from -10 ° C to 40 ° C Day 6 Phase separation stable stable Phase separation phase ingredients Ex. 5 Ex. 6 Ex. 7 Ex. 8 Phase a Glycerin 5 5 5 5 Aqua ad 100 ad 100 ad 100 ad 100 Sodium stearoyl glutamate 0.2 0.2 0.2 0.2 Phase B Succinoglycan gum 0.3 Xanthan gum - - 0.3 - Carrageenan - - - 0.3 Phase C. Cetearyl alcohol 2 2 2 2 Hydrogenated coco-glycerides 2 2 2 2 Dicaprylyl ether 8th 8th 8th 8th Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine 4th 4th 4th 4th Phase D. Phenoxyethanol 0.8 0.8 0.8 0.8 Methyl parabens 0.3 0.3 0.3 0.3 Trisodium EDTA 0.2 0.2 0.2 0.2 storage At room temperature After 24h stable stable stable stable Day 7 stable stable stable stable at 40 ° C After 24h stable stable stable stable Day 7 Phase separation after 2 days stable Phase separation Phase separation at 50 ° C After 24h Phase separation stable stable Phase separation after 9 h Day 7 stable Phase separation 12 h cycle from -10 ° C to 40 ° C Day 6 Phase separation stable stable Phase separation

Recipe examples

Example A Weight O / W day cream % Polyglyceryl-10 stearate 2.0 Sorbitan monostearate 2 Cetyl alcohol 1 C _12-15 alkyl benzoate 3 Caprylic acid / Capric acid retrig lyceride 2 Dicaprylyl carbonate 2 Carnauba wax 0.5 Octocrylene 2 Octyl salicylate 5 2,4-bis - {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine (Tinosorb® S) 1 Glycyrrhiza inflata root extract (Licochalcone A) 0.1 alpha-glucosyl rutin 0.05 Phenoxyethanol 0.8 Dihydracetic acid 0.1 Hexanediol 1 EDTA 0.2 Succinoglucan gum 0.5 Glycerin 7th Additives (hydroxypropylmethyl cellulose, tapioca starch) 0.9 Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 5) q.s. Perfume q.s. water ad 100 Example B. Wt% O / W - day cream Sodium cetyl stearyl sulfate 0.2 Sorbitan monostearate 2 Cetearyl alcohol 2 C _12-15 alkyl benzoate 3 Caprylic acid / Capric acid retrig lyceride 2 Dicaprylyl carbonate 2 Octyldodecanol 1 almond oil 0.5 Dimethicone 1 Octyl salicylate 5 Butyl methoxydibenzoyl methane (e.g. Parsol® 1789) 2 Phenoxyethanol 0.6 Phenylbenzimidazole sulfonic acid 0.5 Creatine 0.4 Hexanediol 0.5 EDTA 0.2 Succinoglucan gum 0.2 Glycerin 7th Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 7) q.s. Perfume q.s. water ad 100 Example C Wt% O / W day cream Potassium Cetyl Phosphate 1 Glyceryl stearate 1 Cetostearyl alcohol 2 C12-15 alkyl benzoate 4th Dicaprylyl ether 2 Ethylhexyl salicylate 3 Octyl methoxycinnamate 3 Butyl methoxydibenzoyl methane (e.g. Parsol® 1789) 2 Methylene bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M) 0.5 Tapioca starch 1 Phenoxyethanol 0.5 Glyceryl caprylate 0.3 4-hydroxyacetophenone 0.3 Carbomer 0.2 Succinoglucan gum 0.3 Glycerin 5 Ascorbyl phosphates 0.1 Ubiquione 0.05 EDTA 0.2 Perfume 0.2 Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 6) q.s. water ad 100 Example D Wt% O / W day cream Polyglyceryl-3 methyl glucose distearate 3 Glyceryl stearate 2 Cetyl alcohol 1 Isopropyl palmitate 2 Dicaprylyl carbonate 2 Caprylic acid / capric acid triglycerides 2 Diethylhexylbutamidotriazone (UVASORB HEB) 1 Octocrylene 2 Ethylhexyl salicylate 4th Tocopheryl acetate 0.5 Succinoglucan gum 0.4 Glycerin 6th Additives (microcrystalline cellulose, EDTA) 0.8 Arctiin 0.1 Niacinamide 0.2 Butylene glycol 5 Phenoxyethanol 0.5 Glyceryl caprylate 0.3 Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 6) q.s. water ad 100 Example EO / W day cream Wt% Sodium stearoyl glutamate 0.3 Glyceryl stearate 1 Cetostearyl alcohol 2 Caprylic acid / capric acid triglycerides 2 Ethyl hexyl stearate 2 C12-15 alkyl benzoate 5 Butyl methoxydibenzoyl methane (e.g. Parsol® 1789) 1 Ethylhexyl salicylate 4th Ethylhexyl Triazone (UVINUL® T 150) 1 Succinoglucan gum 0.4 Methyl paraben 0.2 Glycerin 6th EDTA 0.2 Titanium dioxide (nano) 1 Methylpropanediol 2 Ethylhexyl glycerine 0.3 Phenoxyethanol 0.1 Neutralizing agent (NaOH _aq ) (adjusted to pH 7) q.s. water ad 100 Example F O / W day cream Wt% Stearic acid 3 Glyceryl stearate 1 Cetostearyl alcohol 2 Caprylic acid / capric acid triglycerides 2 Ethyl hexyl stearate 2 C12-15 alkyl benzoate 2 2,4-bis - {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine (Tinosorb® S) 1 Ethylhexyl salicylate 4th Octyl methoxycinnamate 2 Succinoglucan gum 0.3 Benzethonium chloride 0.05 Glycerin 6th EDTA 0.2 Ethanol 3 Ethylhexyl glycerine 0.3 Benzyl alcohol 0.1 Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 6) q.s. water ad 100 Example GO / W - day cream Wt% Glyceryl stearate citrate 2 Glyceryl stearate 2 Stearyl alcohol 2 C _12-15 alkyl benzoate 3 Caprylic acid / Capric acid retrig lyceride 2 Dicaprylyl carbonate 2 2,4-bis - {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl) -1,3,5-triazine (Tinosorb® S) 1 Octocrylene 2 Octyl salicylate 2 Ubiquinones 0.1 Glycyrrhiza inflata root extract (Licochalcone A) 0.1 alpha-glucosyl rutin 0.05 Niacinamide 0.1 Phenoxyethanol 0.8 Hexanediol 1 Sclerotium Gum 0.2 Succinoglucan gum 0.4 Glycerin 5 Additives (EDTA) 0.9 Neutralizing agent (citric acid, NaOH _aq ) (adjusted to pH 5) q.s. Perfume q.s. water ad 100

QUOTES INCLUDED IN THE DESCRIPTION

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Patent literature cited

• EP 570838 A1 [0027]

Claims (10)

Cosmetic oil-in-water emulsions (O / W emulsions) containing, in addition to a water phase, one or more oil phases dispersed therein and a) one or more succinoglucans and b) one or more lipophilic UV filter substances. O / W emulsions Claim 1 , characterized in that the content of succinoglucan in the emulsion is from 0.01 to 1.0% by weight, based on the total weight of the emulsion. O / W emulsions according to one of the preceding claims, characterized in that the content of one or more lipophilic UV filter substances in the emulsion is from 0.001 to 20% by weight and preferably between 0.05 and 15% by weight, particularly is preferably between 0.1 and 10% by weight, based in each case on the total weight of the emulsion. O / W emulsions according to one of the preceding claims, characterized in that the lipophilic UV-A filter substance or substances is or are selected from the group of dibenzoylmethane derivatives, in particular 4- (tert-butyl) -4'- methoxydibenzoylmethane and the triazines, especially the bis-ethylhexyloxyphenol methoxyphenyl triazine. O / W emulsions according to one of the preceding claims, characterized in that the emulsion has one or more oil-in-water emulsifiers (O / W emulsifiers) in a total concentration of 0.05 to 5.0%, based on the Total weight of the emulsion. O / W emulsions according to one of the preceding claims, characterized in that the content of one or more anionic emulsifiers in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 2% by weight, particularly is preferably between 0.1 and 1.0% by weight, based in each case on the total weight of the emulsion. O / W emulsions according to one of the preceding claims, characterized in that the content of one or more nonionic emulsifiers in the emulsion is from 0.001 to 5.0% by weight and preferably between 0.05 and 3% by weight, particularly is preferably between 0.1 and 2.0% by weight, based in each case on the total weight of the emulsion. O / W emulsions according to one of the preceding claims, characterized in that lipophilic emulsifiers with an HLB value of greater than or equal to 8 are used as O / W emulsifiers. O / W emulsions according to one of the preceding claims, characterized in that the O / W emulsifiers are polyglyceryl-3 methyl glucose distearate (INCI polyglyceryl methyl glucose distearate, e.g. Tego Care 450 from Evonik), potassium cetyl phosphate, sodium cetearyl sulfate, Sodium stearyl glutamate, alkali salts of saturated fatty acids of chain length C14-C22, in particular sodium stearate and / or polyethylene glycol (2000) monostearate (INCI; PEG-40 stearate) can be used. O / W emulsions according to one of the preceding claims, characterized in that one or more polyglyceryl fatty acid esters are selected as O / W emulsifiers, particularly preferably polyglyceryl stearate.