EP1009374A2

EP1009374A2 - Sun screen agents

Info

Publication number: EP1009374A2
Application number: EP98946389A
Authority: EP
Inventors: Achim Ansmann; Helga Gondek; Rolf Kawa; Holger Tesmann
Original assignee: Cognis Deutschland GmbH and Co KG
Current assignee: BASF Personal Care and Nutrition GmbH
Priority date: 1997-08-29
Filing date: 1998-08-20
Publication date: 2000-06-21
Also published as: JP2001514203A; WO1999011235A2; US6280712B1; WO1999011235A3; DE19737737A1; DE19737737C2

Abstract

The invention relates to the use of dialkyl carbonates as solvent or dispersing agent in UV filters. The carbonic acid esters display non only excellent dissolving or dispersing properties, but also a high spreading capacity, and they enhance UV absorption in a synergistic way.

Description

Sunscreen

Field of the Invention

The invention relates to sunscreens containing dialkyl carbonates and UV light protection filters and to the use of the dialkyl carbonates as solvents or dispersants for UV light protection filters.

State of the art

The manufacture of sunscreens includes to dissolve or disperse the insoluble UV light protection filters so reliably that sedimentation is avoided even after prolonged storage. From customer information INFORMATION Cosmetics No.lll / 97 of Henkel KGaA from January 1997 it is known that coconut fatty acid glycerides, which are sold under the Myritol 331 brand, have good dissolving properties for crystalline UV light protection filters and UV in comparison to non-polar UV light protection filters -Increase absorption. Sunscreens containing these substances are also known, for example, from DE-A1 19631792 (Henkel). In addition to the stability of the preparations, it is an equally important quality feature for the consumer that the agents are distributed quickly and long-lasting on the skin, for which purpose a precisely coordinated mixture of oil bodies from different spreading areas is required. In the case of sunscreens, higher proportions of quick-spreading oils are required, which support rapid and even spreading of the sensorially heavy UV light protection filters.

The complex object of the invention was therefore to provide oil bodies which, on the one hand, are highly spreading, have good dissolving or dispersing properties for UV light protection filters and, at the same time, synergistically support UV absorption. Description of the invention

The invention relates to sunscreens containing

(a) Dialkyl carbonates and

(b) UV light protection filter.

Surprisingly, it was found that dialkyl carbonates, in particular di-n-octyl carbonate and di-2-ethylhexyicarbonate, in contrast to other high-spreading oils such as, for example, dialkyl ethers or cyclomethicones, have a significantly higher solvency for UV light protection filters and also UV absorption in a synergistic manner reinforce. Thus, the skilled person is now able to build a spreading cascade from high and medium spreading oils, which is able to stably dissolve or disperse high proportions of UV light protection filters. Furthermore, the use concentration of the filter substances, which has been calculated for the desired sun protection factor, can be reduced, which ultimately leads to a reduction in raw material costs with the same performance.

Dialkyl carbonates

Dialkyl carbonates are formally esters of carbonic acid and preferably follow the formula (I),

R10-CO-OR ² (I)

in which R ¹ and R ² independently of one another represent linear or branched alkyl and / or alkenyl radicals having 1 to 22 carbon atoms, with the proviso that they have a total of at least 12 and preferably 12 to 50 and in particular 15 to 25 carbon atoms. The substances are obtained by transesterifying, for example, dimethyl or diethyl carbonate with the corresponding fatty alcohols in a manner known per se. Accordingly, the fatty carbonates can be constructed symmetrically or asymmetrically. However, carbonates are preferably used in which R ¹ and R ^{2 are the} same and represent alkyl radicals having 6 to 16 carbon atoms. Transesterification products of dimethyl or diethyl carbonate with octanol, 2-ethylhexyl alcohol, decanol, cetyl alcohol, cetearyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, behenyl alcohol and / or erucyl alcohol in the form of their mono- and diesters or their technical mixtures are particularly preferred and Guerbet alcohols with 8 to 24 carbon atoms. From a performance standpoint, the use of having di-n-octyl carbonate and di-2-ethylhexyl carbonate, which is a spreading mm by Zeidler 1600 ^2/10 min have proven. The amount of dialkyl carbonates used can be 1 to 30, preferably 5 to 20 and in particular 8 to 10% by weight, based on the composition. UV light filter

UV light protection filters are organic substances which are able to absorb ultraviolet rays and the absorbed energy in the form of longer-wave radiation, e.g. To give off heat again. UVB filters can be oil-soluble or water-soluble. As oil-soluble substances e.g. to call:

3-benzylidene camphor or norcampher and its derivatives, e.g. 3- (4-methylbenzylidene) camphor as described in EP-B1 0693471;

4-aminobenzoic acid derivatives, preferably 2-ethylhexyl 4- (dimethylamino) benzoate, 2-octyl 4- (dimethylamino) benzoate and amyl 4- (dimethylamino) benzoate;

• esters of cinnamic acid, preferably 4-methoxycinnamic acid 2-ethylhexyl ester, 4-methoxycinnamic acid propyl ester, 4-methoxycinnamic acid isoamyl ester 2-cyano-3-phenylcinnamic acid 2-ethylhexyl ester (octocrylene);

• esters of salicylic acid, preferably 2-ethylhexyl salicylate, 4-isopropylbenzyl salicylate, homomethylfatty acid salicylate;

• Derivatives of benzophenone, preferably 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone;

• Esters of benzalmalonic acid, preferably di-2-ethylhexyl 4-methoxybenzmalonate;

Triazine derivatives, e.g. 2,4,6-trianilino- (p-carbo-2'-ethyl-1'-hexyloxy) -1, 3,5-triazine and octyltriazone, as described in EP-A1 0818450;

Propane-1,3-dione, e.g. 1- (4-tert-butylphenyl) -3- (4'methoxyphenyl) propane-1,3-dione;

• Ketotricyclo (5.2.1.0) decane derivatives, as described in EP-B1 0694521.

Possible water-soluble substances are:

• 2-phenylbenzimidazole-5-sulfonic acid and its alkali, alkaline earth, ammonium, alkylammonium, alkanolammonium and glucammonium salts;

• Sulfonic acid derivatives of benzophenones, preferably 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid and its salts;

Sulfonic acid derivatives of 3-benzylidene camphor, e.g. 4- (2-oxo-3-bomylidene-methyl) benzenesulfonic acid and 2-methyl-5- (2-oxo-3-bomylidene) sulfonic acid and their salts.

Derivatives of benzoylmethane, such as 1- (4'-tert-butylphenyl) -3- (4'-methoxyphenyl) propane-1,3-dione, 4-tert-butyl-, are particularly suitable as typical UV-A filters. 4'-methoxydibenzoyl-methane (Parsol 1789), or 1-phenyl-3- (4'-isopropylphenyl) propane-1,3-dione. The UV-A and UV-B filters can of course also be used in mixtures. In addition to the soluble For this purpose, substances are also insoluble pigments, namely finely dispersed metal oxides or salts, such as titanium dioxide, zinc oxide, iron oxide, aluminum oxide, cerium oxide, zirconium oxide, silicates (talc), barium sulfate and zinc stearate. The particles should have an average diameter of less than 100 nm, preferably between 5 and 50 nm and in particular between 15 and 30 nm. They can have a spherical shape, but it is also possible to use particles which have an ellipsoidal shape or shape which differs from the spherical shape in some other way. Further suitable UV light protection filters can be found in the overview by P.Finkel in SÖFW-Journal 122, 543 (1996).

In addition to the two aforementioned groups of primary light stabilizers, secondary light stabilizers of the antioxidant type can also be used, which interrupt the photochemical reaction chain which is triggered when UV radiation penetrates the skin. Typical examples are amino acids (e.g. glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazoles (e.g. urocanic acid) and their derivatives, peptides such as D, L-camosine, D-carnosine, L-camosine and their derivatives (e.g. anserine) , Carotenoids, carotenes (e.g. α-carotene, ß-carotene, lycopene) and their derivatives, chlorogenic acid and their derivatives, lipoic acid and their derivatives (e.g. dihydroliponic acid), aurothioglucose, propylthiouracil and other thiols (e.g. thioredoxin, glutathione, cysteine, cystine, Cystamine and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, γ-linoleyl, cholesteryl and glyceryl esters) and their salts, dilauryl thiodipropionate , Disearylthiodipropionate, thiodipropionic acid and their derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) as well as sulfoximine compounds (eg buthioninsulfoximines, homocysteine sulfoximine, butioninsulfones, penta-, hexa-, heptathioninsuifoximine) in s very low tolerable doses (e.g. pmol to μmol / kg), furthermore (metal) chelators (e.g. α-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), α-hydroxy acids (e.g. citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, bilirubin, Biliverdin, EDTA, EGTA and their derivatives, unsaturated fatty acids and their derivatives (e.g. γ-linolenic acid, linoleic acid, oleic acid), folic acid and their derivatives, ubiquinone and ubiquinol and their derivatives, vitamin C and derivatives (e.g. ascorbyl palmitate, Mg-ascorbyl phosphate, ascorbyl acetate ), Tocopherols and derivatives (e.g. vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoin, rutinic acid and its derivatives, α-glycosyl rutin, ferulic acid, furfurylidene glucitol, camosine,

Butylated hydroxytoluene, butylated hydroxyanisole, nordihydroguajakharzäure, nordihydroguajaretic acid, trihydroxybutyrophenon, uric acid and its derivatives, mannose and its derivatives, superoxide dismutase, zinc and its derivatives (e.g. ZnO, ZnS0) selenium and its derivatives (e.g. stilbene methionine) for example stilbene oxide, trans-stilbene oxide) and the derivatives (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these active substances which are suitable according to the invention. Industrial applicability

Dialkyl carbonates and in particular di-n-octyl or di-2-ethylhexyl carbonate have excellent dissolving properties for UV light protection filters, are highly spreading and amplify UV absorption in a synergistic manner. Another object of the invention therefore relates to their use as a solvent. Dispersing agent for UV light protection filters.

The sunscreens can contain, as further auxiliaries and additives, mild surfactants, oil bodies, emuigators, superfatting agents, stabilizers, consistency enhancers, thickeners, biogenic agents, preservatives, hydrotropes, solubilizers, insect repellents, self-tanning agents, perfume oils, dyes and the like. The solids content of the preparations is usually in the range from 20 to 60, preferably 30 to 45,% by weight.

Typical examples of suitable mild, i.e. particularly skin-compatible surfactants are Fettaikoholpoly- glycoiethersulfate, monoglyceride sulfates, mono- and / or dialkyl sulfosuccinates, fatty acid taurides, fatty acid glutamates, ether carboxylic acids, alkyl oligoglucosides, fatty acid glucamides, alkylamidobetaines and / or protein fatty acid condensates, the latter preferably based on wheat proteins.

Guerbet alcohols based on fatty alcohols with 6 to 18, preferably 8 to 10 carbon atoms, esters of linear C6-C22 fatty acids with linear Cδ-C22 fatty alcohols, esters of branched C6-Ci3-carboxylic acids with linear Cε-C are further oil bodies, for example ∑∑-fatty alcohols, esters of linear C6-C22 fatty acids with branched alcohols, especially 2-ethylhexanol, esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimerediol or trimer triol) and / or Guerbet alcohols, triglycerides based on Cδ-Cio fatty acids, liquid mono- / di- / triglyceride mixtures based on C6-Ci8 fatty acids, esters of C6-C22 fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, especially benzoic acid, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear C6-C22 fatty alcohol carbonates, Guerbet carbonates, esters of benzoic acid with linear and / or branched C6-C22 alcohols (e.g. B. Finsolv® TN), dialkyl ethers, ring opening products of epoxidized fatty acid esters with polyols, silicone oils and / or aliphatic or naphthenic hydrocarbons.

Examples of suitable emulsifiers are nonionic surfactants from at least one of the following groups:

(1) Adducts of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide with linear fatty alcohols with 8 to 22 C atoms, with fatty acids with 12 to 22 C atoms and with alkylphenols with 8 to 15 C atoms in the Alkyl group; (2) C12 /, 8-fatty acid monoesters and diesters of adducts of 1 to 30 moles of ethylene oxide with glycerol;

(3) glycerol monoesters and diesters and sorbitan monoesters and diesters of saturated and unsaturated fatty acids having 6 to 22 carbon atoms and their ethylene oxide addition products;

(4) alkyl mono- and oligoglycosides with 8 to 22 carbon atoms in the alkyl radical and their ethoxylated analogs;

(5) adducts of 15 to 60 moles of ethylene oxide with castor oil and / or hardened castor oil;

(6) polyol and especially polyglycerol esters such as e.g. Polyglycerol polyricinoleate, polyglycerol poly-12-hydroxystearate or polyglycerol dimerate. Mixtures of compounds from several of these classes of substances are also suitable;

(7) adducts of 2 to 15 moles of ethylene oxide with castor oil and / or hardened castor oil;

(8) partial esters based on linear, branched, unsaturated or saturated C6 / 22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerin, polyglycerin, pentaerythritol, dipentaerythritol, sugar alcohols (e.g. sorbitol), alkyl glucosides (e.g. methyl glucoside, butyl glucoside - glucoside) and polyglucosides (eg cellulose);

(9) trialkyl phosphates and mono-, di- and / or tri-PEG-alkyl phosphates;

(10) wool wax alcohols;

(11) polysiioxane-polyalkyl-polyether copolymers or corresponding derivatives;

(12) mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol according to DE-PS 1165574 and / or mixed esters of fatty acids with 6 to 22 carbon atoms, methyl glucose and polyols, preferably glycerol and

(13) Polyalkylene glycols.

The addition products of ethylene oxide and / or of propylene oxide with fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters as well as sorbitan mono- and diesters with fatty acids or with castor oil are known, commercially available products. These are mixtures of homologs, the middle of which Degree of alkoxylation corresponds to the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate with which the addition reaction is carried out. C12 /, 8-fatty acid monoesters and diesters of adducts of ethylene oxide with glycerol are known from DE-PS 20 24051 as refatting agents for cosmetic preparations.

Cβ-alkyl mono- and oligoglycosides, their preparation and their use are known from the prior art. They are produced in particular by reacting glucose or oligosaccharides with primary alcohols with 8 to 18 carbon atoms. With regard to the glycoside residue, both monoglycosides in which a cyclic sugar residue is glycosidically bonded to the fatty alcohol and oligomeric glycosides with a degree of oligomerization of up to preferably about 8 are suitable. The degree of oligomerization is a statistical mean value which is based on a homolog distribution customary for such technical products. Zwitterionic surfactants can also be used as emulsifiers. Zwitterionic surfactants are surface-active compounds that contain at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylammonium glycinate, for example the coconut alkyldimethylammonium glycinate, N-acylamino propyl-NN-dimethylammonium glycinate, for example the coconut acylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxylate -hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethylhydroxyethylcarboxymethylglycinate. The fatty acid amide derivative known under the CTFA name Cocamidopropyl Betaine is particularly preferred. Suitable emulsifiers are also ampholytic surfactants. Ampholytic surfactants are surface-active compounds which, in addition to a Cβ-alkyl or -acyl group, contain at least one free amino group and at least one -COOH or -SO3H group in the molecule and are capable of forming internal salts. Examples of suitable ampholytic surfactants are N-alkylglycine, N-alkylprapionic acid, N-alkylaminobutyric acid, N-alkyliminodipropionic acid, N-hydroxyethyl-N-alkylamidopropylglycine, N-alkyltaurine, N-alkyl sarcosine, 2-alkylaminopropionic acid and alkylaminoacetic acid, each with about 8 to 18 carbon atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C, 2. , 8-acylsarcosine. In addition to the ampholytic emulsifiers, quaternary emulsifiers are also suitable, those of the esterquat type, preferably methyl-quaternized difatty acid triethanolamine ester salts, being particularly preferred.

Substances such as, for example, lanolin and lecithin and polyethoxylated or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acid alkanolamides can be used as superfatting agents, the latter simultaneously serving as foam stabilizers.

The main consistency factors are fatty alcohols with 12 to 22 and preferably 16 to 18 carbon atoms and also partial glycerides. A combination of these substances with alkyl oligoglucosides and / or fatty acid N-methylglucamides of the same chain length and / or polyglycerol poly-12-hydroxystearates is preferred. Suitable thickeners are, for example, polysaccharides, in particular xanthan gum, guar guar, agar agar, alginates and tyloses, carboxymethyl cellulose and hydroxyethyl cellulose, and also higher molecular weight polyethylene glycol mono- and di-esters of fatty acids, polyacrylates, (for example Carbopole® from Goodrich or Synthalene® from Sigma), polyacrylic amides, polyvinyl alcohol and polyvinyl pyrrolidone, surfactants such as ethoxylated fatty acid glycerides, esters of fatty acids with polyols such as pentaerythritol or trimethylolpropane, fatty alcohol ethoxylates with a narrow homolog distribution or alkyl oligoglucosides as well as electrolytes such as sodium chloride and ammonium chloride. Typical examples of fats are glycerides; waxes include beeswax, carnauba wax, candelilla wax, montan wax, paraffin wax or microwaxes, optionally in combination with hydrophilic waxes, for example cetylstearyl alcohol or partial glycerides. Metal salts of fatty acids such as magnesium, aluminum and / or zinc stearate can be used as stabilizers. Biogenic active substances are, for example, tocopherol, tocopherol acetate, tocopherol palmitate, ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes. Pigments with light protection properties include finely divided metal oxides such as titanium dioxide or zinc stearate. Montmorillonites, clay minerals, pemulene and alkyl-modified carbopol types (Goodrich) can serve as swelling agents for aqueous phases.

Hydrotropes such as ethanol, isopropyl alcohol or polyols can also be used to improve the flow behavior. Polyols that come into consideration here preferably have 2 to 15 carbon atoms and at least two hydroxyl groups. Typical examples are

• glycerin;

Alkylene glycols, such as, for example, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, hexylene glycol and polyethylene glycols with an average molecular weight of 100 to 1,000 daltons;

Technical oligoglycerol mixtures with a degree of self-condensation of 1.5 to 10, such as technical diglycerol mixtures with a diglycerol content of 40 to 50% by weight; •

• Methyl compounds, such as in particular trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol and dipentaerythritol;

• Lower alkyl glucosides, especially those with 1 to 8 carbons in the alkyl radical such as methyl and butyl glucoside;

Sugar alcohols having 5 to 12 carbon atoms, such as, for example, sorbitol or mannitol,

• Sugar with 5 to 12 carbon atoms, such as glucose or sucrose;

Aminosugars such as glucamine.

Suitable preservatives are, for example, phenoxyethanol, formaldehyde solution, parabens, pentanediol or sorbic acid. N, N-diethyl-m-touluamide, 1, 2-pentanedioi or Insect repellent 3535 are suitable as insect repellents, and dihydraxyacetone is suitable as a self-tanner.

Perfume oils include extracts from flowers (lavender, roses, jasmine, neroli), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway seeds, juniper), fruit peels (bergamot, lemon, oranges), roots (Macis, Angelica, Celery, Cardamom, Costus, Iris, Calmus), Woods (Sandal, Guaiac, Cedar, Rosewood), Herbs and Grasses (Tarragon, Lemon grass, sage, thyme), needles and twigs (spruce, fir, pine, mountain pine), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax). Animal raw materials such as musk, civet and castoreum are also suitable. Ambroxan, eugenol, isoeugenol, citranellal, hydroxycitronellal, geraniol, citronellol, geranyl acetate, citral, ionone and methylionone can be considered as synthetic or semi-synthetic perfume oils.

The dyes which can be used are those substances which are suitable and approved for cosmetic purposes, as compiled, for example, in the publication "Cosmetic Dyes" by the Dye Commission of the German Research Foundation, Verlag Chemie, Weinheim, 1984, pp. 81-106. These dyes are usually used in concentrations of 0.001 to 0.1% by weight, based on the mixture as a whole.

The total proportion of auxiliaries and additives can be 1 to 50, preferably 5 to 40,% by weight, based on the composition. The agents can be produced by customary cold or hot processes; the phase inversion temperature method is preferably used.

Examples

Table 1 shows the performance properties of dialkyl carbonates compared to other high-spreading oils.

Table 1

Properties of high-spreading oils

^* ) Conditions: 5 ppm octyl methoxy cinnamate, UV spectrometer, 1 cm cuvette, 308 nm

In Table 2 below, recipe examples 1 to 7 are according to the invention, examples V1 and V2 are used for comparison. The stability of the formulations after storage for 4 weeks at 40 ° C. was assessed; (+) means stable, (-) sedimentation.

Table 2 Examples of recipes

Table 3

Further recipe examples *

*) 8 = W / O sunscreen, 9-11 = W / O sunscreen lotions, 12,15,16,19 = O / W sunscreen, 13,14,17,18 = O / W sunscreen

Claims

Patent claims

1. Sunscreen containing

(a) dialkyl carbonates and

(b) UV light protection filter.

according to claim 1, characterized in that they contain dialkyl carbonates of the formula (I),

in which R ¹ and R ² independently represent linear or branched alkyl and/or alkenyl radicals with 1 to 22 carbon atoms, with the proviso that they have at least 12 carbon atoms in total.

3. Composition according to claims 1 and 2, characterized in that they contain di-n-octyl carbonate and / or di-2-ethylhexyl carbonate.

4. Agents according to claims 1 to 3, characterized in that they contain 1 to 30% by weight of dialkyl carbonates - based on the agents.

5. Agents according to claims 1 to 4, characterized in that they contain UV light protection filters selected from the group formed by 3-benzylidene camphor and its derivatives, 4-aminobenzoic acid derivatives, cinnamic acid esters, salicyic acid esters, benzophenone derivatives, benzalmalonic acids, Triazine derivatives, propane-1,3-dione, 2-phenylbenzimidazole-5-sulfonic acids, benzophenone sulfonic acids, benzoylmethane derivatives, finely dispersed metal oxides, superoxide dismutase, tocopherols (vitamin E) and ascorbic acid (vitamin C).

6. Agents according to claims 1 to 5, characterized in that they contain the UV light protection filters in amounts of 0.1 to 5% by weight - based on the agents.

7. Composition according to claims 1 to 6, characterized in that they contain further oil bodies which are selected from the group formed by Guerbet alcohols based on fatty alcohols with 6 to 18, preferably 8 to 10 carbon atoms, esters of linear C6 -C20- fatty acids with linear Cβ-C∑o fatty alcohols, esters of branched C6-Cι ₃ carboxylic acids with linear C6-C2 ₀ fatty alcohols, esters of linear Cβ-Ciβ fatty acids with branched alcohols, esters of linear and/or branched fatty acids with polyhydric alcohols and/or Guer- bet alcohols, triglycerides based on Cβ-Cio fatty acids, esters of C6-C22 fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, vegetable oils, branched primary alcohols, substituted cyclohexanes, Guerbet carbonates, dialkylethenes, ring opening products of epoxidized fatty acid esters with polyols, silicone oils and/or aliphatic or naphthenic hydrocarbons.

8. Composition according to claims 1 to 7, characterized in that they further contain emuigators selected from the group formed by

(1) Addition products of 2 to 30 mol of ethylene oxide and/or 0 to 5 mol of propylene oxide with linear fatty alcohols with 8 to 22 carbon atoms, with fatty acids with 12 to 22 carbon atoms and with alkylphenols with 8 to 15 carbon atoms in the alkyl group;

(2) Ci2/i8 fatty acid mono- and diesters of addition products of 1 to 30 mol of ethylene oxide with glycerol;

(3) glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids with 6 to 22 carbon atoms and their ethylene oxide addition products;

(4) alkyl mono- and -oiigoglycosides with 8 to 22 carbon atoms in the alkyl radical and their ethoxylated analogues;

(5) adducts of 15 to 60 moles of ethylene oxide with castor oil and/or hydrogenated castor oil;

(6) polyol esters;

(7) adducts of 2 to 15 moles of ethylene oxide with castor oil and/or hydrogenated castor oil;

(8) Partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid as well as 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol, sugar alcohols, alkyl glucosides and polyglucosides;

(9) trialkyl phosphates and mono-, di- and/or tri-PEG alkyl phosphates;

(10) wool wax alcohols;

(11) polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives;

(12) Mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol and/or mixed esters of fatty acids with 6 to 22 carbon atoms, methyl glucose and polyols as well

(13) Polyalkylene glycols.

9. Use of dialkyl carbonates as solvents or dispersants for UV light protection filters.