DE19956603A1 - Use of alkyl- and/or alkenyl-oligoglycoside fatty acid esters as pigment dispersants for production of cosmetic and/or pharmaceutical formulation, e.g. lipstick, eye shadow, make up or sun screen - Google Patents

Abstract

The use of alkyl- and/or alkenyl-oligoglycoside fatty acid esters as pigment dispersant for the production of cosmetic and/or pharmaceutical formulation is new.

Description

Field of the Invention

The invention relates to the use of alkyl and / or alkenyl oligoglycoside fatty acid esters as pig ment dispersants for the production of cosmetic and / or pharmaceutical preparations.

State of the art

Preparations in the field of decorative cosmetics, such as lipsticks, eye shadows, make-up up, sunscreen and the like usually contain a large number of pigments which are used in hydrophilic or lipophilic solvents, such as. B. water or vegetable oils, are only sufficiently soluble. It is desirable to improve the dispersibility of these pigments, and thus a finer one Distribution in known systems, such as emulsions of water-in-oil or Oil-in-water type.

The object of the invention was therefore to provide means which make it possible to O / W or W / O emulsions as well as solid preparations in the field of decorative cosmetics to produce in which the pigments are better dispersed and are therefore more finely divided. About that In addition, such preparations are said to have good dermatological tolerance and one good storage stability guaranteed.

Description of the invention

The invention relates to the use of alkyl and / or alkenyl oligoglycoside fatty acid esters as pigment dispersants for the production of cosmetic and / or pharmaceutical accessories horse riding.  

Surprisingly, it was found that alkyl and / or alkenyl oligoglycoside fatty acid esters in the The dispersibility of pigments is better both in the oil and in the water phase sern and thus the pigments in such systems compared to the prior art more finely divided available. In addition, these preparations, such as lipsticks, eye shadows, Make up, sunscreen and the like, sufficient dermatological tolerances as well high storage stability.

Alkyl and / or alkenyl oligoglycoside fatty acid esters

Esters of alkyl and / or alkenyl oligoglycosides and fatty acids, hereinafter briefly referred to as "glycoside esters "are known from the prior art. Usually they are this is methyl glucoside esters, but also the production of esters with higher fatty acids takes place in a manner known per se, d. H. by alkaline-catalyzed esterification of the starting materials, which are explained in more detail below. Technical wedges usually fall during the esterification differently substituted products. However, preference is given to mono- and ins special diesters or their technical mixtures as dispersants in amounts of 1 to 10, preferably 4 to 6 wt .-% - based on the final concentration - used.

Alkyl and / or alkenyl oligoglycosides

Alkyl and / or alkenyl oligoglycosides are known nonionic surfactants which follow the formula (I)

R ¹ O- [G] _p (I)

in which R ^{1 is} an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10. They can be obtained according to the relevant preparative organic chemistry processes. Representative of the extensive literature here is the review by Biermann et al. in Starch /force 45, 281 (1993), B. Salka in Cosm. Toil. 108, 89 (1993) and J. Kahre et al. in SÖFW-Journal Issue 8, 598 (1995).

The alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses with 5 or 6 carbon atoms, preferably glucose. The preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides. The index number p in the general formula (I) indicates the degree of oligomerization (DP), ie the distribution of mono- and oligoglycosides, and stands for a number between 1 and 10. While p must always be an integer in a given compound and especially here can assume the values p = 1 to 6, the value p for a certain alkyl oligoglycoside is an analytically determined arithmetic quantity, which usually represents a fractional number. Alkyl and / or alkenyl oligoglycosides with an average degree of oligomerization p of 1.1 to 3.0 are preferably used. From an application point of view, alkyl and / or alkenyl oligoglycosides are preferred whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4. The alkyl or alkenyl radical R ¹ can be derived from primary alcohols having 4 to 11, preferably 8 to 10, carbon atoms. Typical examples are butanol, capro alcohol, caprylic alcohol, capric alcohol and undecyl alcohol and their technical mixtures, such as those obtained from Roelen's oxosynthesis in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes. Alkyl oligoglucosides of chain length C ₈ -C ₁₀ (DP = 1 to 3) are preferred, which are obtained as a preliminary step in the separation of technical C ₈ -C ₁₈ coconut fatty alcohol by distillation and with a proportion of less than 6% by weight of C ₁₂ -Alcohol can be contaminated and alkyl oligoglucosides based on technical C _9/11 oxo alcohols (DP = 1 to 3). The alkyl or alkenyl radical R ¹ can also be derived from primary alcohols having 12 to 22, preferably 12 to 18, carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and the technical mixtures described above, which can be obtained as described above. Alkyl oligoglucosides based on hardened C _12/14 coconut alcohol with a DP of 1 to 3 are preferred.

Fatty acids

Fatty acids are understood to mean aliphatic or aromatic, mono- or polyvalent, optionally hydroxy-functionalized fatty acids of the formula (II)

R ² CO-OH (II)

in which R ² CO represents a linear or branched acyl radical having 6 to 22 carbon atoms. Before preferably fatty acids of formula (II) are used in which R ² CO is a linear acyl radical having 16 to 18 carbon atoms. Typical examples are mono-fatty acids such as caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, arenachic acid and elaeachoic acid, elaeachoic acid and elaeachoic acid, as well as eleachoic acid, eleachoic acid and elaeoleic acid, as well as eleachoic acid and elaeoleic acid, as well as eleachoic acid and elaeoleic acid, as well as eleachoic acid, eleachoic acid and eleachoic acid, as well as eleachoic acid and elaeoleic acid, as well as eleachoic acid and elaeoleic acid, as well as acidic acid and elaeoleic acid, elaic acidic acid and elaeic acidic acid, as well as acidic acid and acidic acid acid their technical mixtures. Palmitic acid and stearic acid, isostearic acid and / or oleic acid are particularly preferred. Corresponding C ₆ -C ₁₂ difatty acids can also be used instead of the monofatty acids, so that adipic acid and dodecanedioic acid are also suitable. Finally, hydroxy-functionalized polyvalent fatty acids can also be used, such as. B. hydroxy stearic acid.

Pigments

The term pigments is to be understood as solids which are neither hydrophilic nor lipophilic Solvents such as B. water or vegetable oils are sufficiently soluble under normal conditions. Typi Examples of pigments which are suitable for the purposes of the present invention are all Types of dyes, such as those used in the field of decorative cosmetics, for example for the formulation of solid preparations such as lipsticks, powders, eye shadows, but also liquid or pasty formulations such as nail polishes, sunscreens, tö tion creams, make-up, wound protection creams and the like are used. Typical examples for suitable color pigments are talc, zinc oxide, kaolin, titanium dioxide, iron oxides, chromium oxides, ultra marine, manganese violet, bismuth oxychloride, mica, mica coated with titanium dioxide and fish sil ber. An overview of this topic, which also includes exemplary formulations for decorative cosmetics contains, can be found in "Cosmetics" (Ed. W. Umbach), Thieme Verlag, 1995, pp. 311-315. The use However, manure is not limited to the area of cosmetic preparations, but applies very general, for example also for the production of emulsion paints, in which colored pig elements such as titanium dioxide must be dispersed. The pigments are preferably used in quantities from 1 to 10, in particular 4 to 6 wt .-% - based on the concentration used.

Industrial applicability

The cosmetic and / or pharmaceutical preparations (see chapter Pigments), which the inventions contain glycoside esters according to the invention can also be used as further auxiliaries and additives mild Ten side, oil bodies, emulsifiers, superfatting agents, pearlescent waxes, consistency agents, thickening agents tel, polymers, silicone compounds, fats, waxes, stabilizers, biogenic agents, deodorants, Antidandruff agents, film formers, swelling agents, UV light protection factors, antioxidants, hydrotropes, con preservatives, insect repellents, self-tanners, solubilizers, perfume oils, dyes, germ contain inhibitors and the like.

Typical examples of suitable mild, i.e. H. Surfactants that are particularly compatible with the skin are fatty alcohol poly glycol ether sulfates, monoglyceride sulfates, mono- and / or dialkyl sulfosuccinates, fatty acid isethionates, Fatty acid sarcosinates, fatty acid taurides, fatty acid glutamates, ether carboxylic acids, alkyl oligoglucosides,  Fatty acid glucamides, alkylamido betaines 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 C ₆ -C ₂₂ fatty acids with linear C ₆ -C ₂₂ fatty alcohols, esters of branched C ₆ -C ₁₃ -Carboxylic acids with linear C ₆ -C ₂₂ fatty alcohols, esters of linear C ₆ -C ₂₂ fatty acids with branched alcohols, in particular 2-ethylhexanol, esters of hydroxycarboxylic acids with linear or branched C ₆ -C ₂₂ fatty alcohols, in particular dioctyl malates , Esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimer diol or trimer triol) and / or Guerbet alcohols, triglycerides based on C ₆ -C ₁₀ fatty acids, liquid mono- / di- / triglyceride mixtures based on C ₆ -C ₁₈ fatty acids, esters of C ₆ -C ₂₂ fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, especially benzoic acid, esters of C ₂ -C ₁₂ dicarboxylic acids with linear or branched Suitable alcohols with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C ₆ -C ₂₂ fatty alcohol carbonates, Guerbet carbonates, esters of benzoic acid with linear and / or branched C ₆ -C ₂₂ alcohols (e.g. B. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ether having 6 to 22 carbon atoms per alkyl group, ring opening products of epoxidized fatty acid reesters with polyols, silicone oils and / or aliphatic or naphthenic hydrocarbons in Be.

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

• 1. Addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear Fatty alcohols with 8 to 22 carbon atoms, on fatty acids with 12 to 22 carbon atoms and on alkylphenols with 8 to 15 carbon atoms in the alkyl group;
• 2. C _12/18 fatty acid _monoesters and diesters of adducts of 1 to 30 moles 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 oligoglycosides with 8 to 22 carbon atoms in the alkyl radical and their ethoxy analogs;
• 5. Addition products of 15 to 60 moles of ethylene oxide with castor oil and / or hardened castor oil;
• 6. Polyol and especially polyglycerol esters, such as. B. polyglycerol polyricinoleate, polyglycerol poly-12-hydroxystearate or polyglycerol dimerostearate. Mixtures are also suitable of compounds from several of these classes of substances;
• 7. Addition products 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 C _6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, Dipentae rythritol, sugar alcohols (e.g. sorbitol), alkyl glucosides (e.g. Methylglucoside, butylglucoside, laurylglucoside) and polyglucosides (e.g. cellulose);
• 9. mono-, di- and trialkyl phosphates and mono-, di- and / or tri-PEG-alkyl phosphates and their Salts;
• 10. wool wax alcohols;
• 11. Polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives;
• 12. Mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol according to DE 11 65 574 PS and / or mixed esters of fatty acids with 6 to 22 carbon atoms, methyl glucose and Polyols, preferably glycerol or polyglycerol,
• 13. Polyalkylene glycols as well
• 14. Glycerol carbonate.

The adducts 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 of fatty acids or with castor oil are known, commercially available products. These are homologous mixtures whose average 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. C _12/18 fatty acid _monoesters and diesters of adducts of ethylene oxide with glycerol are known from DE 20 24 051 PS as refatting agents for cosmetic preparations.

C _8/18 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 ten-side refers to those surface-active compounds which have 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 cocoalkyldimethylammonium glycinate, N-acylaminopropyl-N, N -dimethylammonium glycinate, for example the cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxylate 3-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 of Cocamidopropyl Betaine is particularly preferred. Suitable emulsifiers are also ampholytic surfactants. Ampholytic surfactants are surface-active compounds which, in addition to a C _8/18 alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO ₃ H group in the molecule and are capable of forming internal salts are. Examples of suitable ampholytic surfactants are N-alkylglycine, N-alkylpropionic 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 C. Atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylamino propionate and C _12/18 acyl sarcosine. In addition to the ampholytic emulsifiers, quaternary emulsifiers are also suitable, those of the ester quat type, preferably methyl-quaternized difatty acid triethanolamine ester salts, being particularly preferred.

Substances such as lanolin and lecithin and polyethoxy can be used as superfatting agents gelled or acylated lanolin and lecithin derivatives, polyol fatty acid esters, monoglycerides and fatty acids realkanolamides are used, the latter also serving as foam stabilizers.

Pearlescent waxes, for example, are: alkylene glycol esters, especially ethylene glycol di stearate; Fatty acid alkanolamides, especially coconut fatty acid diethanolamide; Partial glycerides, especially stea rinic acid monoglyceride; Esters of polyvalent, optionally hydroxy-substituted carboxylic acids with fatty alcohols with 6 to 22 carbon atoms, especially long-chain esters of tartaric acid; Fatty substances, such as fatty alcohols, fatty ketones, fatty aldehydes, fatty ethers and fatty carbonates, in total have at least 24 carbon atoms, especially lauron and distearyl ether; Fatty acids such as stea rinsic acid, hydroxystearic acid or behenic acid, ring opening products of olefin epoxides with 12 to 22 carbon atoms with fatty alcohols with 12 to 22 carbon atoms and / or polyols with 2 to 15 carbon atoms and 2 to 10 hydroxyl groups and mixtures thereof.

The main consistency agents are fatty alcohols or hydroxy fatty alcohols with 12 to 22 and preferably 16 to 18 carbon atoms and in addition partial glycerides, fatty acids or hydroxy fat acids into consideration. A combination of these substances with alkyl oligoglucosides and / or is preferred Fatty acid N-methylglucamides of the same chain length and / or polyglycerol poly-12-hydroxystearates. Suitable thickeners are, for example, polysaccharides, in particular xanthan gum, guar Guar, agar-agar, alginates and tyloses, carboxymethyl cellulose and hydroxyethyl cellulose, furthermore hermolecular polyethylene glycol mono- and diesters of fatty acids, polyacrylates, (e.g. Carbopole® from Goodrich or Synthalene® from Sigma), polyacrylamides, polyvinyl alcohol and polyvinylpyrrolidone, Surfactants such as ethoxylated fatty acid glycerides, esters of fatty acids with polyols as in for example pentaerythritol or trimethylolpropane, fatty alcohol ethoxylates with restricted homologues distribution or alkyl oligoglucosides as well as electrolytes such as table salt and ammonium chloride.  

Suitable cationic polymers are, for example, cationic cellulose derivatives, such as. Legs quaternized hydroxyethyl cellulose obtained from Amerchol under the name Polymer JR 400® Lich, cationic starch, copolymers of diallylammonium salts and acrylamides, quaternized Vinyl pyrrolidone / vinyl imidazole polymers, such as. B. Luviquat® (BASF), condensation products from Poly glycols and amines, quaternized collagen polypeptides such as lauryldimonium hydroxy propyl hydrolyzed collagen (Lamequat®L / Grünau), quaternized wheat polypeptides, polyethyleneimine, cationic silicone polymers, such as. B. amidomethicones, copolymers of adipic acid and dimethyl aminohydroxypropyldiethylenetriamine (Cartaretine® / Sandoz), copolymers of acrylic acid with dimethyl diallylammonium chloride (Merquat® 550 / Chemviron), polyaminopolyamides, e.g. B. described in the FR 2252840 A and their crosslinked water-soluble polymers, cationic chitin derivatives as in for example, quaternized chitosan, optionally microcrystalline, condensation products Dihaloalkylene, such as. B. dibromobutane with bisdialkylamines, such as. B. bis-dimethylamino-1,3-propane, cationic guar gum, such as B. Jaguar® CBS, Jaguar® C-17, Jaguar® C-16 from Celanese, quaternized ammonium salt polymers, such as. B. Mirapol® A-15, Mirapol® AD-1, Mirapol® AZ-1 der Miranol company.

Examples of anionic, zwitterionic, amphoteric and nonionic polymers are Vinyl acetate / crotonic acid copolymers, vinyl pyrrolidone / vinyl acrylate copolymers, vinyl acetate / butyl maleate / iso bornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and their esters, uncrosslinked and crosslinked with polyols, acrylic acids, acrylamidopropyltrimethylammonium chloride / Acrylate copolymers, octylacrylamide / methyl methacrylate / tert-butylaminoethyl methacrylate / 2-hydroxypropyl methacrylate copolymers, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymers, vinylpyrrolidone / di methylaminoethyl methacrylate / vinylcaprolactam terpolymers and optionally derivatized Cellulose ethers and silicones in question.

Suitable silicone compounds are, for example, dimethylpolysiloxanes, methylphenylpolysiloxanes, cyclic silicones as well as amino, fatty acid, alcohol, polyether, epoxy, fluorine, glycoside and / or al alkyl modified silicone compounds that are both liquid and resinous at room temperature can lie. Todd also provides a detailed overview of suitable volatile silicones et al. in cosm. Toil. 91, 27 (1976).

Typical examples of fats are glycerides. a. Beeswax, carnauba wax, Candelilla wax, montan wax, paraffin wax, hydrogenated castor oils, fat that is solid at room temperature acid esters or microwaxes, optionally in combination with hydrophilic waxes, e.g. B. Cetyl stearyl alcohol or partial glycerides in question. Metal salts of fatty acids, such as B. magnesium, aluminum and / or zinc stearate or ricinoleate can be used.  

Examples of biogenic active ingredients are tocopherol, tocopherol acetate, tocopherol palmitate, Ascorbic acid, deoxyribonucleic acid, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acid ren, amino acids, ceramides, pseudoceramides, essential oils, plant extracts and vitamin complexes to understand.

As deodorants come e.g. B. antiperspirants such as aluminum chlorohydates in question. These are colorless, hygroscopic crystals that easily melt in the air and occur when vaping aqueous aluminum chloride solutions. Aluminum chlorohydrate is used to manufacture antiperspirant and deodorant preparations and is likely to act by partially occluding the sweat glands through protein and / or polysaccharide precipitation [cf. J. Soc. Cosm. Chem. 24, 281 (1973)]. An aluminum chlorohydrate which corresponds to the formula [Al ₂ (OH) ₅ Cl] .2.5 H ₂ O and whose use is particularly preferred is commercially available, for example, under the brand Locron® from Hoechst AG, Frankfurt / FRG . J. Pharm. Pharmacol 26, 531 (1975)]. In addition to the chlorohydrates, aluminum hydroxy acetates and acidic aluminum / zirconium salts can also be used. Esterase inhibitors can be added as further deodorant active ingredients. These are preferably trialkyl citrates such as trimethyl citrate, tripropyl citrate, triisopropyl citrate, tributyl citrate and in particular triethyl citrate (Hydagen® CAT, Henkel KGaA, Düsseldorf / FRG). The substances inhibit enzyme activity and thereby reduce odor. The cleavage of the citric acid ester probably releases the free acid, which lowers the pH value on the skin to such an extent that the enzymes are inhibited. Further substances which can be considered as ester nase inhibitors are sterol sulfates or phosphates, such as, for example, lanosterol, cholesterol, campesteric, stigmasterol and sitosterol sulfate or phosphate, dicarboxylic acids and their esters, such as, for example, glutaric acid, glutaric acid monoethyl esters, glutaric acid diethyl ester, adipate esters, Monoethyl adipates, diethyl adipates, malonic and diethyl malonates, hydroxycarboxylic acids and their esters such as, for example, citric acid, malic acid, tartaric acid or tartaric acid diethyl esters. Antibacterial agents that influence the bacterial flora and kill sweat-decomposing bacteria or inhibit their growth can also be contained in the pen preparations. Examples include chitosan, phenoxyethanol and chlorhexidine gluconate. 5-Chloro-2- (2,4-dichlorophen-oxy) phenol, which is sold under the Irgasan® brand by Ciba-Geigy, Basel / CH, has also proven to be particularly effective.

Climbazole, octopirox and zinc pyrethione can be used as antidandruff agents. Ge Common film formers are, for example, chitosan, microcrystalline chitosan, quaternized chito san, polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, collagen, hyaluronic acid or its salts and similar compounds. Montmorillonite, clay minerals, pemulene and alkyl can be used as swelling agents for aqueous phases modified carbopol types (Goodrich) are used. Other suitable polymers or swelling agents can the overview by R. Lochhead in Cosm. Toil. 108, 95 (1993).  

Under UV light protection factors are to be understood, for example, liquid or crystalline organic substances (light protection filters) at room temperature, which are able to absorb ultraviolet rays and absorb the energy in the form of longer-wave radiation, e.g. B. to give off heat like that. UVB filters can be oil-soluble or water-soluble. As oil-soluble substances such. B. To name:

• - 3-benzylidene camphor or 3-benzylidene norcampher and its derivatives, e.g. B. 3- (4-Methylbenzy liden) camphor as described in EP 0693471 B1;
• - 4-aminobenzoic acid derivatives, preferably 4- (dimethylamino) benzoic acid 2-ethylhexyl esters, 4- 2-octyl (dimethylamino) benzoate and amyl 4- (dimethylamino) benzoate;
• - Esters of cinnamic acid, preferably 4-methoxycinnamic acid-2-ethylhexyl esters, 4-methoxycinnamic acid propyl esters, 4-methoxycinnamic acid isoamyl esters, 2-cyano-3,3-phenylcinnamic acid 2-ethylhexyl esters (Octocrylene);
• - Esters of salicylic acid, preferably 2-ethylhexyl salicylate, 4-isopropyl salicylic acid benzyl esters, salicylic acid homomethyl esters
• - Derivatives of benzophenone, preferably 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-me thoxy-4'-methylbenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone;
• Esters of benzalmalonic acid, preferably di-2-ethylhexyl 4-methoxybenzmalonate;
• - Triazine derivatives, such as. B. 2,4,6-Trianilino- (p-carbo-2'-ethyl-1'-hexyloxy) -1,3,5-triazine and octyl tria zon, as described in EP 081840 A1;
• Propane-1,3-diones, such as e.g. B. 1- (4-tert-butylphenyl) -3- (4'-methoxyphenyl) propane-1,3-dione;
• - Ketotricyclo (5.2.1.0) decane derivatives, as described in EP 0694521 B1.

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, such as. B. 4- (2-Oxo-3-bornylidenemethyl) benzene sulfonic acid and 2-methyl-5- (2-oxo-3-bornylidene) sulfonic acid and its salts.

Derivatives of benzoylmethane, such as, for example, are particularly suitable as typical UV-A filters wise 1- (4'-tert-butylphenyl) -3- (4'-methoxyphenyl) propane-1,3-dione, 4-tert-butyl-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 also come with insoluble light protection pigments, namely finely dispersed metal oxide or salts in question. Examples of suitable metal oxides are, in particular, zinc oxide and titanium dioxide and in addition oxides of iron, zirconium, silicon, manganese, aluminum and cerium as well  their mixtures. Silicates (talc), barium sulfate or zinc stearate can be used as salts. The oxides and salts are in the form of the pigments for skin-care and skin-protecting emulsions and used decorative cosmetics. The particles should have an average diameter of few less than 100 nm, preferably between 5 and 50 nm and in particular between 15 and 30 nm point. They can have a spherical shape, but such particles can also be used come that have an ellipsoidal or otherwise deviating from the spherical shape To have shape. So-called micro- or nanopigments are preferred in sunscreens set. Micronized zinc oxide is preferably used.

Other suitable UV light protection filters can be found in P. Finkel's overview 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-carnosine, D-carnosine, L-carnosine and their derivatives (e.g. anserine), carotenoids, carotenes (e.g. α-carotene, β-carotene, lycopene) and their derivatives, chlorogenic acid and its derivatives, lipoic acid and its derivatives (e.g. dihydroliponic acid), Auro thioglucose, 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, distearyl thiodipropionate, thiodipropionic acid and their derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and sulfoximine compounds (e.g. Buthioninsulfoximine, Homocysteinsulfoximin, Butioninsulfone, Penta-, Hexa-, Heptathioninsulfox imine) in very low tolerable doses (e.g. B. pmol to µmol / kg), also (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, gal Lentic acid, biliary 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) as well as coniferyl benzoate of benzoin, rutinic acid and their derivatives, α-glycosylrutin, ferulic acid, furfurylidene glucitol, carnosine, butylated hydroxytoluene, butylated hydroxyanisole, nordihydroguajak resin acid, nordihydroguajaretic acid, trihydroxybutyrophenone, uric acid and its derivatives, mannose and their derivatives, zinc oxide derivative ate (e.g. ZnO, ZnSO ₄ ) selenium and its derivatives (e.g. B. selenium-methionine), stilbenes and their derivatives (z. B. Stil benoxid, trans-stilbene oxide) and the inventive derivatives (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these active ingredients.

Suitable preservatives are, for example, phenoxyethanol, formaldehyde solution, para benzene, pentanediol or sorbic acid as well as those in Appendix 6, Parts A and B of the Cosmetics Regulation led further substance classes. As insect repellents there are N, N-diethyl-m-toluamide, 1,2- Pentanediol or insect repellent 3535 in question, dihydroxyacetone is suitable as a self-tanner.

Perfume oils include mixtures of natural and synthetic fragrances. Natural Fragrance substances are extracts of flowers (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, oranges), roots (mace, angelica, celery, cardamom, costus, iris, Calmus), woods (pine, sandal, guaiac, cedar, rosewood), herbs and grasses (tarragon, Lemongrass, sage, thyme), needles and twigs (spruce, fir, pine, mountain pine), resins and bal seeds (galbanum, elemi, benzoin, myrrh, olibanum, opoponax). Furthermore animal raw come substances in question, such as civet and castoreum. Typical synthetic fragrance compounds gen are products of the type of esters, ethers, aldehydes, ketones, alcohols and hydrocarbons. Fragrance compounds of the ester type are e.g. B. benzyl acetate, phenoxyethyl isobutyrate, p-tert-Bu tylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, linalyl benzoate, Benzyl formate, ethyl methylphenyl glycinate, allyl cyclohexyl propionate, styrallyl propionate and benzylsa licylate. The ethers include, for example, benzyl ethyl ether, the aldehydes z. B. the linear Alka nals with 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, Hydroxycitronellal, Lilial and Bourgeonal, to the ketones z. B. the Jonone, ∝-isomethylionon and Me thylcedryl ketone, to the alcohols anethole, citronellol, eugenol, isoeugenol, geraniol, linalool, pheny ethyl alcohol and terpineol, the hydrocarbons mainly include terpenes and bal same. However, preference is given to using mixtures of different fragrances that work together generate an appealing fragrance. Also essential oils of lower volatility, mostly as an aro Mac components are used as perfume oils, e.g. B. sage oil, chamomile oil, clove oil, Lemon balm oil, mint oil, cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, oliban oil, galbanum oil, Labolanumöl and Lavandinöl. Bergamot oil, dihydromyrcenol, lilial, lyral, Citronellol, phenylethyl alcohol, α-hexyl cinnamaldehyde, geraniol, benzylacetone, cyclamenaldehyde, Lina lool, boisambrene forte, ambroxan, indole, hedione, sandelice, lemon oil, mandarin oil, orange oil, Allylamyl glycolate, cyclover valley, lavandin oil, muscatel sage oil, β-damascone, geranium oil bourbon, Cyclohexyl salicylate, Vertofix Coeur, Iso-E-Super, Fixolide NP, Evernyl, Iraldein gamma, phenylacetic acid acid, geranyl acetate, benzyl acetate, rose oxide, romilllate, irotyl and floramate alone or in mixtures gene, used.

As dyes, the substances suitable and approved for cosmetic purposes can be used be used, such as the dye in the publication "Cosmetic Colorants" Commission of the German Research Foundation, Verlag Chemie, Weinheim, 1984, pp. 81-106  are put together. These dyes are usually used in concentrations from 0.001 to 0.1% by weight, based on the mixture as a whole.

Typical examples of germ-inhibiting agents are preservatives with a specific effect against gram-positive bacteria such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether, chlorhexidine (1,6-di- (4- chlorphenyl-biguanido) hexane) or TCC (3,4,4'-trichlorocarbonilide). Also numerous fragrances and essential oils have antimicrobial properties. Typical examples are the active ingredients Euge nol, menthol and thymol in clove, mint and thyme oil. An interesting natural deodorant is the terpene alcohol farnesol (3,7,11-trimethyl-2,6,10-dodecatrien-1-ol), which is present in the linden blossom oil is and has a lily of the valley smell. Glycerol monolaurate has also proven to be a bacteriostatic lasts. The proportion of the additional germ-inhibiting agents is usually about 0.1 to 2% by weight. - Based on the solids content of the preparations.

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

Examples

Various emulsions (Examples 1 to 7) were prepared, which are the inventive ones Contain glycoside esters and various pigments. As a measure of the dispersibility, the Fine particle size of the pigments on a scale of 1 to 5 compared to the emulsions (V1 and V2) without corresponding glycoside ester determined (microscopy 400x). The results are summarized in Table 1 quantified. The stability of the emulsions became (-) = less stable when stored, (+) = stable and (++) = assessed very stable.

Table 1

O / W and W / O emulsions (quantities as% by weight)

Claims (6)

1. Use of alkyl and / or alkenyl oligoglycoside fatty acid esters as pigment dispersants for the production of cosmetic and / or pharmaceutical preparations. 2. Use according to claim 1, characterized in that fatty acid esters of alkyl and alkenyl oligoglycosides of the formula (I) are used,
R ¹ O- [G] _p (I)
in which R ^{1 is} an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10. 3. Use according to claims 1 and / or 2, characterized in that esters of fatty acids of the formula (II) are used,
R ² CO-OH (II)
in which R ² CO represents an aliphatic, linear or branched acyl radical having 6 to 22 carbon atoms. 4. Use according to at least one of claims 1 to 3, characterized in that Mono- and / or diesters of alkyl oligoglycosides with 12 to 18 carbon atoms in the alkyl radical and uses fatty acids with 16 to 18 carbon atoms. 5. Use according to at least one of claims 1 to 4, characterized in that one the glycoside esters are used in amounts of 1 to 10% by weight, based on the final concentration. 6. Use according to at least one of claims 1 to 5, characterized in that the glycoside esters are used in amounts of 4 to 6% by weight, based on the final concentration.