DE19849701A1 - Shampoo/conditioner formulations contain surfactants including nonionic surfactant, a fatty acid and a selected alkoxy alkanol, dialkyleneglycolmonoalkylether, aromatic alcohol or cinnamic alcohol - Google Patents

Abstract

Shampoo-conditioners based on surfactants including nonionic surfactant, a 10-24 C fatty acid and a compound selected from a group of 11 claimed alcohol and ether compounds including 1-methoxy propanol-(2), diethyleneglycol mono(m)ethylether and benzyl alcohol. Water-based hair washing agents comprising (on total composition) 5-50 wt. % surfactant components in which the proportion of nonionic surfactants is at least 25 wt. % of the total surfactant content; 0.5-10 wt. % of a 10-24 C fatty acid; and 0.5-25 wt. % of at least one compound selected from 1-(m)ethoxypropanol-(2), diethyleneglycol mono(m)ethylether, dipropyleneglycolmono(m)ethylether, benzyl alcohol, benzyloxyethanol, phenylethyl alcohol, phenoxyethanol and/or cinnamic alcohol.

Description

The present invention relates to a liquid conditioning shampoo based on nonionic surfactants.

Conditioning shampoos have been known for a long time. They usually contain anionic surfactants, especially alkyl ether sulfates or their salts, and as Conditioning agent cationic polymers, preferably cellulose ether derivatives of the type "Polymer JR®" or also diallyldimethylammonium chloride polymers of the "Merquat®" type.

It has also been proposed to use such shampoos based on nonionic surfactants to manufacture, which can have the advantage of improved compatibility. However, the foaming power of these shampoos is often unsatisfactory.

WO-A 94/2111 already discloses hair care products which contain long-chain fatty acids, their salts and esters as well as aromatic alcohols and cationic surfactants. With these conditioning agents have nothing in common with the shampoos according to the invention.

The present invention is based on the task, an aqueous conditioning To develop shampoo that contains nonionic surfactants, in particular one has a volumizing effect on the hair and creates a creamy, stable foam.

The solution to this problem consists in a liquid personal cleanser which contains 5 to 50% by weight of at least one surfactant, calculated on the total composition, the proportion of nonionic surfactant being at least 25% by weight of the total surfactant content, and 1 to 10 % By weight, calculated on the total composition, of at least one C ₁₀ -C ₂₄ fatty acid, and 0.5 to 25% by weight of at least one compound selected from the group 1-methoxypropanol (-2), 1-ethoxypropanol (-2), diethylene glycol monomethyl and monoethyl ether, dipropylene monoglycol monomethyl and monoethyl ether, benzyl alcohol, benzyloxyethanol, phenylethyl alcohol, phenoxyethanol and / or cinnamon alcohol.

In principle, all are used in cosmetic washing and cleaning agents nonionic surfactants also for use in the compositions according to the invention suitable. The proportion of these nonionic surfactants is at least 25% by weight, preferably about 30 to about 50% by weight of the total amount of surfactant, and 2.5 to 25, preferably about 5 to 20, in particular between about 7.5 and 15% by weight, calculated on the total composition.

Preferred are C ₈ -C ₂₀ alkyl polyglucosides, corresponding to the general formula RO (R ¹ O) _t Z _x , where Z is a sugar residue with 5 to 6 carbon atoms, in particular glucose, R is an alkyl group with 8 to 20 carbon atoms, R ^{1 is} one Ethylene or propylene radical, t is 0 to 10 and x 1 to 5. A preferred alkyl polyglucoside has a C ₁₀ -C ₁₈ alkyl radical and a degree of condensation x of 1.25 to 1.6, where t is preferably equal to 0.

Other suitable nonionic surfactants are C ₈ -C ₂₀ fatty alcohol polyglycol ethers, such as those under the trivial names "Laureth", "Myristeth", "Coceth", "Ceteth", "Deceth" and "Steareth" according to the CTFA nomenclature with the number added of the ethylene oxide molecules designated alkyl polyglycol ethers, e.g. B. "Laureth-16", "Oleth-12", "Coceth-10", etc. The average degree of ethoxylation is preferably between about 5 to 25, in particular about 10 and 20.

Other suitable nonionic surfactants are amine oxides. Such amine oxides have long been state of the art, for example C ₁₂ -C ₁₈ alkyldimethylamine oxides such as laurydimethylamine oxide, C ₁₂ -C ₁₈ alkylamidopropyl or ethylamine oxides, C ₁₂ -C ₁₈ alkyldi (hydroxyethyl) - or - (hydroxypropyl) amine oxides , or also amine oxides with ethylene oxide and / or propylene oxide groups in the alkyl chain. Such amine oxides are commercially available, for example, under the names "Ammonyx®", "Aromox®" or "Genaminox®".

Other nonionic surfactants are the well-known fatty acid polyglycol esters and fat acid glyceridoxethylate, preferably in a mixture with other nonionic surfactants are used, e.g. B. the various sorbitan esters, such as polyethylene glycol sorbitan stearic acid esters, or mixed condensates of ethylene oxide and propylene oxide, as they for example, are on the market under the trade name "Pluronics®".

Other nonionic surfactant components are, for example, fatty acid mono- and dialkanolamides such as coconut fatty acid monoethanolamide and myristic fatty acid monoiso propanolamide, which can also be used as an additional foam booster. Mixtures of various nonionic surfactants are preferably used.

The compositions according to the invention can be used as a further surfactant component amphoteric or zwitterionic surfactants, preferably in an amount of about 1 to about 20, in particular from about 2 to about 15, for example about 2.5 to about 10% by weight, based on the total composition.

As such, the various known betaines such as fatty acid in particular to name amidoalkylbetaines and sulfobetaines, for example laurylhydroxysulfobetaine; also long chain alkyl amino acids such as cocoaminoacetate, cocoaminopropionate and Sodium cocoamphopropionate and acetate have been found to be suitable.

In particular, betaines of structure

where R is a C ₈ -C ₁₈ alkyl group and n is 1 to 3, sulfobetaines of the structure

where R is a C ₈ -C ₁₈ alkyl group and n is 1 to 3, and amidoalkylbetaines of the structure

where R is a C ₈ -C ₁₈ alkyl group and n is 1 to 3, are used.

Fatty acid amidoalkyl betaines, in particular cocoamidopropyl betaine, and Cocoamphoacetate and propionate, especially their sodium salts.

Mixtures of cocoamidopropyl betaine and cocoamphoacetate are particularly preferred, especially in a weight ratio of 3: 1 to 1: 3, especially 2: 1 to 1: 1.

In addition to the essential nonionic and optional amphoteric or zwitterionic surfactant components, the compositions can also contain anionic surfactants. Suitable additional anionic surfactants are, for example, those of the carboxylate and alkyl phosphate type, especially, of course, those which are normally used in shampoos, for example C ₈ -C ₂₀ -alkyl polyether carboxylic acids or their salts of the formula

R- (A) _n -O-CH ₂ COOX,

wherein R is a C ₈ -C ₂₀ alkyl or alkenyl group, preferably a C ₁₂ -C ₁₄ alkyl group, A is an ethylene and / or propylene oxide group, n is a number from 1 to 20, preferably 2 to 17, and XH or preferably a Cation of the group sodium, potassium, magnesium and ammonium, which may optionally be substituted by hydroxyalkyl. Such products have been known for a long time and are commercially available, for example under the trade names "AKYPO®" and "AKYPO-SOFT®". If present, their proportion in the compositions according to the invention is preferably 0.5 to 10, in particular 0.75 to 7.5,% by weight, calculated on the total composition. Alkylamido polyether carboxylic acids and their salts are also known as mild surfactants, especially for use in shampoos. C ₁₂ -C ₁₄ -Alkylamidoethercarboxylic acids whose degree of ethoxylation n is from 2 to 8 are preferably used.

Other anionic surfactants are the salts of long-chain mono- and dialkyl phosphates, which represent mild, skin-compatible detergents, acyl isethionates, α-olefin sulfonates, Sulfocuccinates, etc. and sulfates such as alkyl sulfates or alkyl ether sulfates, the latter preferably with about 1 to 5 ethylene oxide units per molecule on average. The proportion of these anionic surfactants is preferably between about 2.5 to about 20. especially about 5 to 15% by weight of the total composition.

A further preferred anionic surfactant group which can additionally be used in the shampoos according to the invention in a mixture with the surfactants present according to the invention are C ₈ -C ₂₂ -acylaminocarboxylic acids or their water-soluble salts, preferably in an amount of 0.5 to 10, in particular 1 to 7.5% by weight, calculated on the total composition.

N-Lauroyl glutamate is particularly preferred, in particular as the sodium salt. Other suitable N-acylaminocarboxylic acids are, for example, N-lauroyl sarcosinate, NC ₁₂ -C ₁₈ -acylaspartic acid, N-myristoyl sarcosinate, N-oleoyl sarcosinate, N-lauroylmethylalanine, N-lauroyllysine and N-lauroylaminopropylglycine, preferably in the form of their water-soluble alkali metal or alkali metal especially sodium salts.

An overview of those used in liquid personal cleansers respective surfactants can be found in the monograph by K. Schrader, "Fundamentals and formulations of cosmetics ", 2nd ed. (1989, Hüthig Buchverlag), pp. 683 to 691.

Lauric acid, myristic acid, palmitic acid, stearic acid and / or behenic acid are used as preferred C ₁₀ -C ₂₄ fatty acids. Unsaturated fatty acids such as oleic acid or fatty acid mixtures of the named or naturally occurring fatty acids such as coconut oil fatty acids can also be used. Behenic acid is particularly preferred. The amount of the fatty acid is preferably about 1.5 to 7.5, in particular about 2 to about 5% by weight, calculated on the total composition.

The third essential ingredient is selected from the group 1-methoxypropanol (-2), 1- Ethoxypropanol (-2), diethylene glycol monomethyl and monoethyl ether, dipropylene mono glycol monomethyl and monoethyl ether, benzyl alcohol, benzyloxyethanol, phenylethyl alcohol, phenoxyethanol and / or cinnamon alcohol.

The preferred amount is about 1 to about 15, in particular about 2 to about 10% by weight, calculated on the total composition.

The shampoos according to the invention can of course be all customary in such agents contain substances used.

Examples include complexing agents, dyes, preservatives, pH regulators, viscosity regulators such as inorganic salts, unless they are already in the surfactant Starting mixtures are included, fragrances, pearlescent agents, thickeners called agents, humectants, vegetable and animal oils such as jojoba oil, etc.

Conditioning agents, in particular synthetic and / or natural, are preferred Polymers such as nonionic polymers, amphoteric polymers or anionic polymers; also Protein hydrolyzates, which can also be cationically derivatized, e.g. B. under the name "Gluadin®" products, as well as mono- and oligosaccharides such as various Sugar, also in the form of natural products such as honey, can be used.

The addition of cationic polymers is particularly preferred. Examples of such cationic polymers are e.g. B. the well-known quaternaries Cellulose derivatives of the "Polymer JR" type and quaternized homo- and copolymers of the Dimethyldiallylammoniumchlorids, such as those sold under the trade name "Merquat®" are quaternary vinylpyrrolidone copolymers, in particular with dialkylaminoalkyl (meth) - Acrylates, as they are known under the name "Gafquat®", copolymers Vinyl pyrrolidone and vinyl imidazolinium methochloride sold under the trade name "Luviquat®" are offered, polyamino-polyamide derivatives, for example copolymers of adipic acid-dimethylaminohydroxypropyldiethylenetriamine, such as that sold under the name "Cartaretine®F" are sold, as well as bisquaternary long-chain Ammonium compounds of the urea structure described in U.S. Patent No. 4,157,388, which are available under the trade name "Mirapol® A15".

In this connection, reference is also made to those in DE-OSen 25 21 960, 28 11 010, 30 44 738 and 32 17 059 cation-active polymers mentioned and those in EP-A 337 354 products described on pages 3 to 7. Mixtures can also be used various cationic polymers can be used.

The cationic polymers also include those in EP-A 524 612 and EP-A 640 543 described quaternization products from graft polymers of Organopoly siloxanes and polyethyloxazolines.

As amphoteric polymers, alone or in a mixture with at least one other cationic, nonionic or anionic polymers are used in particular copolymers of N-octylacrylamide, (meth) acrylic acid and tert.- "Amphomer®" type butylaminoethyl methacrylate; Copolymers of methacrylic oylethyl betaine and alkyl methacrylates of the "Yukaformer®" type, e.g. B. the butyl methacrylate "Yukaformer®" copolymers Am75; Copolymers of carboxyl groups and sulfone groups containing monomers, e.g. B. (meth) acrylic acid and itaconic acid, with basic groups, in particular monomers containing amino groups, such as mono- or dialkylamino alkyl (meth) acrylates or mono- or dialkylaminoalkyl (meth) acrylamides; Copolymers from N-octylacrylamide, methyl metharylate, hydroxypropyl methacrylate, N-tert-butylamino ethyl methacrylate and acrylic acid and the copolymers known from US Pat. No. 3,927,199 called.

Suitable anionic polymers are vinyl alkyl ether, especially methyl vinyl ether / Maleic acid copolymers by hydrolysis of vinyl ether / maleic anhydride copoly meren arise and sold under the trade name "Gantrez® AN or ES" will. These polymers can also be partially esterified, for example "Gantrez® ES 225", the ethyl ester of an ethyl vinyl ether / maleic acid copolymer; or the butyl or iso butyl ester of the same.  

Other suitable anionic polymers are in particular vinyl acetate / crotonic acid or Vinyl acetate / virlyl neodecanoate / crotonic acid copolymers of the "Resyn®" type, sodium "Hydagen® F" acrylate / vinyl alcohol copolymers, sodium polystyrene sulfonate, e.g. B. "Flexan® 130", ethyl acrylate / acrylic acid / N-tert-butylacrylamide copolymers of the type "Ultrahold®", vinyl pyrrolidone / vinyl acetate / itaconic acid copolymers, acrylic acid / acrylamide copolymers or sodium salts thereof of the "Reten®" type, etc.

The nonionic polymers used are preferably alcohol- and / or water-soluble Vinylpyrrolidone polymers such as a vinylpyrrolidone homopolymer or copolymer, used in particular with vinyl acetate.

Suitable vinyl pyrrolidone polymers are e.g. B. under the trade name "Luviskol®" known products, for example the homopolymers "Luviskol® K 30, K 60 and K 90" and the water- or alcohol-soluble copolymers of vinylpyrrolidone and vinyl acetate, which are marketed by BASF AG under the trade name "Luviskol® VA 55 or VA 64" will. Other suitable nonionic polymers are vinyl pyrrolidone / vinyl acetate / vinyl propionate copolymers such as "Luviskol® VAP 343", vinyl pyrrolidone / (meth) acrylic acid ester copolymers and chitosan derivatives.

The proportion of polymers in the shampoos according to the invention, if present, is between about 0.05 and about 5, preferably 0.1 and 2.5, in particular about 0.15 to 1.5 % By weight, based on the total composition of the agent.

Finally, known polysiloxanes can also be used as conditioning agents in the liquid hair detergents according to the invention can also be used. Before that The proportion drawn is approximately between 0.5 and approximately 5, in particular 1 to 3% by weight of the Overall composition. Both volatile and semi-volatile are suitable cyclic or linear polysiloxanes, for example those under the trivial name "Dimethicone" or "Phenyldimethicone" and "Cyclomethicone" known silicone oils.

For example, the silicone derivatives described in EP-A 398 177 are also suitable there in combination with alkyl polyglucosides in liquid detergent composition are used.

According to a preferred embodiment of the invention Shampoos also contain dyes for direct or oxidative coloring of hair, so so-called tinting or coloring shampoos. Tinting shampoos containing direct dyes are particularly suitable.

It has been found that such shampoos that the inventive Contain surfactant composition and in particular cationic substantive dye, a particularly brilliant, shiny and stable hair coloring compared to known Tint shampoos based on conventional surfactants or surfactant mixtures.

A list of suitable additives can also be found at Schrader, l.c., on p. 695 to 722.

The pH value is between about 4 and about 8.5 in the range customary for shampoos, especially about 5.5 to about 7.5 around the neutral point.

The following examples illustrate the invention.

example 1 Conditioning tint shampoo

C ₁₂ -C ₁₄ alkyl polyglucoside (PD: ~ 1.45) 5.0 Laureth-16 5.0 C ₁₂ -C ₁₄ acyl glutamate, sodium salt 1.0 Cocoamidopropyl betaine 3.0 Behenic acid 2.0 Cationic direct dye (Basic Red 76) 0.1 Polyquaternium-7 0.2 Ethoxydiglycol 3.5 Perfume, preservative, neutralizing agent (pH ~ 6.7) q.s. water ad 100.0 (% by weight)

A tinting shampoo was obtained which gave a stable, shiny red color to the hair resulted and an excellent conditioning effect (volume, grip, drying and Wet combability, elasticity) caused on the hair. In addition, a creamy foam was obtained, which was omitted from the behenic acid was significantly reduced.  

Example 2 Conditioning shampoo for fine hair

C ₁₂ -C ₁₄ alkyl polyglucoside (PD: ~ 1.45) 5.0 N-lauroyl glutamate, sodium salt 1.0 Cocoamidopropyl betaine 5.0 Cocoamidopropylamine oxide 3.0 Sodium lauryl ether sulfate (~ 2EO) 7.0 Behenic acid 2.0 Myristic acid 1.0 Polyquaternium-7 0.3 Benzyloxyethanol 2.5 Dye, preservative, perfume, neutralizing agent (pH ~ 6.5-7.5) q.s. water ad 100.0 (% by weight)

When using this shampoo, an excellent conditioning effect (full Grip, gloss, good wet and dry combability, bounce) achieved on the hair. The shampoo had a creamy, rich foam. The removal of myristic acid on the one hand and benzyloxyethanol on the other hand not only significantly reduced the foam properties, but also resulted in Half-side trial also to a significantly reduced conditioning effect.

Example 3 Shampoo for normal hair for sensitive scalp

C ₁₂ -C ₁₄ alkyl polyglycoside (PD: ~ 1.45) 5.0 (% by weight) Lauroyl glutamate, sodium salt 2.0 Disodium lauryl ether sulfosuccinate 3.0 Sodium lauryl ether sulfate (~ 2EO) 10.0 Benzyloxyethanol 2.5 Polyquaternium-7 0.3 Behenic acid 3.0 Dye, preservative, perfume q.s. water ad 100.0

A particularly mild shampoo was obtained which nevertheless gave the hair a good wet and combability, shine, full grip, elasticity and bounce.

A normal half-side test was carried out on 10 subjects, with a shampoo after Example 3 was compared with a composition 3A that did not contain behenic acid, however 13.0 wt .-% of sodium lauryl ether sulfate contained.

The result was compared in a double blind test by a hairdresser according to preference points.

result

Preference points

Composition No.

Example 4 Shampoo for normal hair

C ₁₂ -C ₁₄ alkyl polyglucoside (PD: ~ 1.45) 5.0 Cocoamidopropyl betaine 2.0 Cocoamidopropylamine oxide 2.0 Sodium lauryl ether sulfate (~ 2EO) 5.0 Polyquaternium-7 0.2 Polyquaternium-16 0.2 Oleic acid 0.5 Behenic acid 1.5 Stearic acid 1.0 Benzyloxyethanol 2.0 Phenoxyethanol 1.5 Dye, preservative, perfume q.s. water ad 100.0

The shampoo had a full, creamy foam and gave the hair a full grip, Shine, good wet and dry combability, fullness and bounce.

Claims (5)

1.A shampoo on an aqueous basis, containing 5 to 50% by weight of surfactant components, calculated on the total composition, the proportion of nonionic surfactant being at least 25% by weight of the total surfactant content, and 0.5 to 10% by weight, calculated on the total composition, at least one C ₁₀ -C ₂₄ fatty acid, and 0.5 to 25 wt .-%, calculated on the total composition, at least one compound selected from the group 1-methoxypropanol (-2), 1-ethoxypropanol (-2), diethylene glycol monomethyl and monoethyl ether, dipropylene monoglycol monomethyl and mono ethyl ether, benzyl alcohol, benzyloxyethanol, phenylethyl alcohol, phenoxyethanol and / or cinnamon alcohol. 2. Composition according to claim 1, additionally containing about 0.05 to 5 wt .-%, calculated on the Total composition, at least one natural or synthetic condition end polymers. 3. Composition according to claim 2, containing 0.1 to 2.5 wt .-%, calculated on the total composition, at least one cationic polymer. 4. Composition according to one or more of claims 1 to 3, containing 1 to 7.5 wt .-%, calculated on the total composition, behenic acid. 5. Composition according to one or more of claims 1 to 4, containing 1 to 15 wt .-%, calculated on the total composition, phenoxyethanol and / or benzyloxyethanol.