DE19937917B4 - Aqueous shampoo - Google Patents

Abstract

An aqueous shampoo composition contains DOLLAR A a) 2.5 to 50% by weight of at least one anionic surfactant; DOLLAR A b) 0.5 to 25 wt .-% of at least one nonionic surfactant; DOLLAR A c) 0.05 to 7.5 wt .-% of at least one hair-conditioning polymer; and DOLLAR A d) 0.25 to 10 wt .-% of a C¶1¶-C¶4¶-alkyl acrylate / dimethyl or diethylaminoethyl (meth) acrylate / C¶10¶-C¶30¶-alkyl-polyethylene glycol 10-30% DOLLAR A itaconate terpolymer, calculated on the total composition. DOLLAR A This shampoo, which is mild on the skin, foams well and is stable to viscosity, gives the hair excellent conditioning properties, especially dry and wet combability, volume, shine, elasticity and soft feel.

Description

The The present invention relates to an aqueous-based shampoo with optimal properties.

such Funds usually include at least one surface-active Substance, in particular an anionic surfactant, and usually also a hair conditioning polymer, preferably a cationic one.

DE 197 23 763 A1 describes an aqueous-based conditioning shampoo comprising an anionic, amphoteric and nonionic surfactant. A cationic polymer may also be included.

Soap / Cosmetics / Chemical Specialties, October 1998, p 80 describes Structure ^® Plus is a modifier for the rheology, which swells in acid. It is said that the thickening occurs in the alkaline range. Chemical Abstract 130: 271843 also describes the thickening effect of Structure ^® Plus. EP 0 824 914 A1 relates to a thickened care composition using a specific polymeric rheology modifier. To produce this modifier, use is made of monomers made from (meth) acrylate polymers, a vinyl-substituted heterocyclic compound having at least one nitrogen or oxygen atom, and other monomers. EP 0 825 200 A1 also relates to polymeric rheology modifiers generated from various monomers such as those mentioned above.

EP 1 060 732 A2 , which is to be considered only in terms of novelty, describes topical formulations, which may include, inter alia, liposomes, the preferred sizes are in the range up to a maximum of 5000 nm. Preferably, the maximum particle size is 3000 nm. From the handbook of cosmetics and fragrances, Volume III by Hugo Janistyn liquid Spezialtensidshampoos are well known. Here it is stated that some additives not only increase the viscosity, but stabilize the foaming power and act as a so-called foam booster.

Even though these products prove themselves There is still a need to improve their Efficacy, especially in terms of volume, gloss, combability and feeling of the hair washed with it.

Furthermore is from a body cleanser a good foaming power, especially a high foam volume, expected.

Finally, should such products should also be extremely mild, i.e. and mucosal compatibility exhibit.

In addition, should these shampoos, especially if they are gel and transparent, viscosity stable be.

• a) 2,5 bis 50 Gew.-% mindestens eines anionischen Tensids;
• b) 0,5 bis 25 Gew.-% mindestens eines nichtionischen Tensids;
• c) 0,05 bis 7,5 Gew.-% mindestens eines haarkonditionierenden Polymeren; und
• d) 0,25 bis 10 Gew.-% eines C₁-C₄-Alkylacrylat/Dimethyl- oder Diethylaminoethyl(meth)acrylat/C₁₀-C₃₀-Alkyl-Polyethylenglykol-10-30-itaconat-Terpolymeren, und
• (e) 0,05 bis 10 Gew.-% von in der Zusammensetzung sichtbaren Teilchen mit einem Teilchendurchmesser zwischen 50 und 3000 μm,

jeweils berechnet auf die Gesamtzusammensetzung, enthält.It has now been found that a shampoo which optimally meets these requirements, if this mixture is based on water

• a) 2.5 to 50 wt .-% of at least one anionic surfactant;
• b) from 0.5% to 25% by weight of at least one nonionic surfactant;
• c) 0.05 to 7.5% by weight of at least one hair conditioning polymer; and
• d) from 0.25 to 10% by weight of a C ₁ -C ₄ alkyl acrylate / dimethyl or diethylaminoethyl (meth) acrylate / C ₁₀ -C ₃₀ alkyl polyethylene glycol 10-30 itaconate terpolymers, and
• (e) 0.05 to 10% by weight of particles visible in the composition having a particle diameter between 50 and 3000 μm,

each calculated on the total composition, contains.

Another advantage of these compositions is the self-thickening efficacy of these blends, ie, it is not necessary to add additional inorganic or organic thickening agents to account for the most preferred viscosity range for shampoos, from about 1000 to 60,000 mPa.s. 25 ° C, measured in the Brookfield viscometer, reach.

The Presence of such thickeners can cause stability problems cause they can interfere with other components. This is in the shampoos based on the composition of the invention is not the Case.

suitable Anionic surfactants in the invention are Favor in one Amount of at least 5 to about 50 wt .-%, preferably 10 to 25 Wt .-% of the composition.

These are those of the sulfate, sulfonate, carboxylate and alkyl phosphate type, especially of course those which are commonly used in shampoos, for example the known C ₁₀ -C ₁₈ alkyl sulfates and in particular the corresponding ether sulfates, for example C ₁₂ -C ₁₄ -alkyl ether sulfate, lauryl ether sulfate, in particular having 1 to 4 ethylene oxide groups in the molecule, furthermore monoglyceride (ether) sulfates, fatty acid amide sulfates which are obtained by ethoxylation and subsequent sulfation of fatty acid alkanolamides, and their alkali metal salts and salts of long-chain mono- and dialkyl phosphates, which are mild, skin-friendly detergents.

in the Further suitable anionic surfactants according to the invention are α-olefinsulfonates or their salts and in particular alkali metal salts of sulfosuccinic monoesters, for example, the disodium salt of monooctylsulfosuccinate, and Alkali salts of long-chain monoalkylethoxysulfosuccinates.

worin R und X die vorstehend angegebene Bedeutung haben und n insbesondere für eine Zahl von 1 bis 10, vorzugsweise 2,5 bis 5, steht.Suitable carboxylate-type surfactants are alkylpolyethercarboxylic acids and their salts of the formula R- (C ₂ H ₄ O) _n -O-CH ₂ COOX, wherein R is a C ₈ -C ₂₀ -alkyl group, preferably a C ₁₂ -C ₁₄ -alkyl group, n is a number from 1 to 20, preferably 2 to 17, and X is H or preferably a cation of the group sodium, potassium, magnesium and ammonium, which may optionally be hydroxyalkyl-substituted, and alkylamidopolyethercarboxylic acids of the general formula

wherein R and X have the meaning given above and n is in particular from 1 to 10, preferably 2.5 to 5, stands.

Such products have long been known and commercially, for example under the trade names "AKYPO ^® " and "AKYPO-SOFT ^® ".

C ₈ -C ₂₀ acyl isethionates can also be used, alone or in a mixture with other surfactants, as are sulfo fatty acids and their esters.

It can also mixtures of several anionic surfactants are used, for example, a mixture of an α-olefinsulfonate and a sulfosuccinate, preferably in proportion from 1: 3 to 3: 1, or an ether sulfate and a polyether carboxylic acid or Alkylamidoethercarbonsäure.

An overview of the in liquid Body washes The anionic surfactants used are otherwise found in US Pat the monograph by K. Schrader, "Fundamentals and Formulations of Cosmetics", 2nd ed. (1989, Hüthig Book publishing house), S. 683 to 691.

Of the preferred amount range of anionic surfactants in the liquid hair cleansing compositions according to the invention is between 5 and 30% by weight, in particular 7.5 to 25% by weight, particularly preferably from 10 to 20% by weight, calculated on the total composition of the remedy, depending on whether they are concentrates.

As a preferred embodiment, the shampoos according to the invention preferably comprise a mixture of one of said anionic surfactants and at least one C ₈ -C ₂₂ -acylaminocarboxylic acid or its water-soluble salts, preferably in an amount of from 5 to 25, in particular 10 to 20,% by weight, calculated on the total composition.

Particularly preferred is N-lauroylglutamate, especially as the sodium salt. Further 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 ammonium, especially sodium salts.

The second essential constituent of the shampoos according to the invention is a terpolymer of a C ₁ -C ₄ -alkyl acrylate, preferably ethyl acrylate, dimethyl or diethylaminoethyl acrylate or methacrylate and a C ₁₀ -C ₃₀ -alkyl-polyethylene glycol-10-30-itaconate.

The Production of these polymers and their use in cosmetic Means is known per se. However, it was surprising and unpredictable that she in the special detergent mixtures according to the invention a stabilizing, Foam-improving and skin irritation counteracting and additional conditioning activity exhibit.

These Products can by copolymerization of the corresponding monomers in a conventional manner getting produced; They are also available in the market.

As a preferred Itaconsäureester a PEG-10-25, in particular PEG-20-C ₁₀ -C ₃₀ -alkyl itaconate is used.

The preferred amount is 0.5 to 7.5, in particular 0.75 to 5 % By weight of the shampoo.

The compositions of the invention contain nonionic surfactants as a third essential ingredient. Such are preferably alkyl polyglucosides of the formula RO- (R ¹ O) _n -Z _x , wherein R is an alkyl group having 8 to 18 carbon atoms, R ^{1 is} an ethylene or propylene group, Z is a saccharide radical having 5 to 6 carbon atoms, n is a number from 0 to 10, and x is a number between 1 and 5.

These Alkylpolyglucosides are particularly excellent as skin-friendly foam-improving Agent in liquid Detergents and body cleansers have become known and are preferably in an amount of 1 to 15, in particular 2.5 to 10 wt .-% of the total composition.

Further Nonionic surfactant components are, for example, long-chain fatty acid and dialkanolamides, such as coconut fatty acid monoethanolamide and myristic fatty acid monoethanolamide, which also as foam enhancers can be used.

suitable Nonionic surfactants are also the known ethoxylates of fatty alcohols such as. Laureth, Coceth, Myristeth, Ceteth, Oleth products.

Other co-usable nonionic surfactants are e.g. the different Sorbitan esters, such as polyethylene glycol sorbitan stearic acid ester, Fatty acid poly glycol ester or also mixed condensates of ethylene oxide and propylene oxide, such as they are, for example, under the trade name "Pluronics" in circulation.

Further usable nonionic surfactants are amine oxides in an amount from 0.25 to 5, preferably 0.5 to 3.5 wt .-%, calculated on the Total composition of the agent.

Such amine oxides have long been state of the art, for example C ₁₂ -C ₁₈ -alkyldimethylamine oxides such as lauryldimethylamine oxide, C ₁₂ -C ₁₈ -alkylamidopropyl or -ethylamine oxides, C ₁₂ -C ₁₈ -alkyldi (hydroxyethyl) - or - (hydroxypropyl) amine oxides , or amine oxides with ethylene oxide and / or propylene oxide groups in the alkyl chain.

Such amine oxides, for example, under the names "Ammonyx ^®", "Aromox ^®" or "Genaminox ^®" in the trade.

Mixtures of anionic surfactants and alkyl polyglucosides and their use in liquid body cleansing compositions are already known per se, for example from the EP 70 074 A2 , The mixtures described therein are in principle also suitable in the context of the present invention; as well as from the EP 358 216 A2 known mixtures of sulfosuccinates and alkyl polyglucosides.

The Compositions of the invention can as further surfactant constituent also amphoteric or zwitterionic Surfactants in an amount of 0.5 to 15, preferably from 1 to 5 Wt .-%, based on the total composition.

When such are in particular the various known betaines such Fatty acid amidoalkylbetaines and Sulfobetaines, for example, Laurylhydroxysulfo betaine to name; also long-chain alkyl amino acids such as Cocoaminoacetate, cocoaminopropionate and sodium cocoamphopropionate and acetate have been found to be suitable.

wobei R eine C₈-C₁₈-Alkylgruppe und n 1 bis 3 bedeuten, Sulfobetaine der Struktur

wobei R eine C₈-C₁₈-Alkylgruppe und n 1 bis 3 bedeuten, und Amidoalkylbetaine der Struktur

wobei R eine C₈-C₁₈-Alkylgruppe und n 1 bis 3 bedeuten, verwendet werden.In particular, Betaine's structure

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

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

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

The weight ratio of anionic surfactant to C ₈ -C ₂₂ -acylaminocarboxylic acid (s) preferably lies, in a preferred embodiment, between 10: 1 and 1: 3, of C ₈ -C ₂₂ -acylaminocarboxylic acid (s) to nonionic surfactant of between 1: 3 and 3 : 1, and from C ₈ -C ₂₂ acylaminocarboxylic acid (s) to the amphoteric or zwitterionic surfactant, if present, between 1: 3 and 3: 1.

The Hair conditioning polymers whose proportion in the compositions of the invention between 0.05 and 7.5, preferably 0.1 and 5, in particular about 0.25 to 2.5% by weight, based on the total composition of the composition, can nonionic polymers, preferably alcohol and / or water-soluble vinylpyrrolidone polymers such as a vinylpyrrolidone homopolymer or copolymer, in particular with vinyl acetate, be.

Suitable vinylpyrrolidone polymers are those known under the trade name "Luviskol ^®" products, for example, the homopolymers "Luviskol ^® K 30, K 60 and K 90", as well as the water- or alcohol-soluble copolymers from vinyl pyrrolidone and vinyl acetate, which under the tradename " Luviskol ^® VA are sold by BASF AG 55 and VA 64 ".

Other suitable nonionic polymers are vinyl pyrrolidone / vinyl acetate / vinyl propionate copolymers such as "Luviskol ^® VAP 343", vinyl pyrrolidone / (meth) acrylate copolymers, and chitosan derivatives.

Instead of or additionally The nonionic polymers may be hair conditioning Polymers, in particular cationic and / or anionic and / or Amphoteric polymers are used in the stated amounts.

Preferred hair conditioning, cationic polymers are the well-known quaternary cellulose derivatives of the type "Polymer JR" and quaternized homo- and copolymers of dimethyldiallylammonium chloride such as those under the trade name "Merquat ^®" in the trade, copolymers of vinylpyrrolidone, acrylates quaternary particular with dialkylaminoalkyl (meth) acrylates, as they are known under the name "Gafquat ^®", copolymers of vinylpyrrolidone and Vinylimidazoliniummethochlorid, under the trade name "Luvi quat ^® "are offered, polyamino-polyamide derivatives, for example copolymers of adipic acid dimethylaminohydroxypropyl as under the name" sold Cartaretine ^® F ", as well as long-chain bis-quaternary ammonium compounds of the US 4,157,388 described urea structure, which are available under the trade name "Mirapol ^® A 15".

Reference is also made in this context to the in the DE 2521690 A1 , 2811010 A1, 3044738 A1 and 3217059 A1 mentioned cationic polymers and in the EP 337 354 A1 on pages 3 to 7. It is also possible to use mixtures of different cationic polymers.

The cationic polymers include those in the EP 524 612 A2 and the EP 640 643 A2 described quaternization of graft polymers of organopolysiloxanes and Polyethyloxazolinen.

As amphoteric polymers which are used alone or in admixture with at least one other cationic, nonionic or anionic polymers, in particular copolymers of N-octylacrylamide, (meth) acrylic acid and tert-butylaminoethyl methacrylate of the type "Amphomer ^® "; Copolymers of methacryloyl and methacrylates of the type "Yukaformers ^®", eg. For example, the butyl methacrylate copolymer "Yukaformer AM75 ^®"; Copolymers of carboxyl groups and sulfonic acid-containing monomers, eg. B. (meth) acrylic acid and itaconic acid, with basic groups, in particular amino groups, containing monomers such as mono- or dialkylaminoalkyl (meth) acrylates or mono- or dialkylaminoalkyl (meth) acryllamides; Copolymers of N-octylacrylamide, methyl methacrylate, hydroxypropyl methacrylate, N-tert-butylaminoethyl methacrylate and acrylic acid and those from US 3,927,199 called known copolymers.

Suitable anionic polymers are vinyl alkyl ether, in particular methyl vinyl ether / maleic acid copolymers, which are formed by hydrolysis of vinyl ether / maleic anhydride copolymers and are sold under the trade name "Gantrez ^® AN or ES". These polymers may also be partly esterified, for example, "Gantrez ^® ES 225", the ethyl ester thereof of an ethyl vinyl ether / maleic acid copolymer, or the butyl or isobutyl ester.

Other suitable anionic polymers are in particular vinyl acetate / crotonic acid or vinyl acetate / vinyl neodecanoate / crotonic acid copolymers of the type "Resyn ^®"; Sodium acrylate / vinyl alcohol copolymers of the type "Hydagen ^® F", sodium polystyrene sulfonate, for example, "Flexan ^® 130"; Ethyl acrylate / acrylic acid / N-tert.-butyl acrylamide copolymers of the type "Ultrahold ^®"; Vinyl pyrrolidone / vinyl acetate / itaconic acid copolymers, acrylic acid / acrylamide copolymers or the sodium salts thereof of the type "Reten ^®"; Etc.

The shampoos according to the invention can additionally also other conditioning agents, such as protein hydrolysates and polypeptides, for example, keratin, collagen type "Nutrilan® ^®" or elastin as well as particular plant, possibly cationized protein hydrolysates, eg "Gluadin® ^®" included.

The Shampoo according to the invention can Of course all in these usual ones Contain substances.

When such are, for example, complexing agents, dyes, preservatives, pH regulator, viscosity regulator such as inorganic salts, as far as they are not anyway in the surfactant starting mixtures fragrances, pearlescing agents, thickeners, Humectants, vegetable and animal oils such as jojoba oil, fatty acid esters such as. Isopropyl myristate, ethyl palmitate, lecithin and its derivatives etc. called.

A Listing of such additives can also be found at Schrader, I.c., on pages 695 to 722.

One Another preferred ingredient is ethoxy diglycol, preferably in an amount of 0.1 to 5 wt .-% of the inventive composition.

Finally, too Polysiloxanes which are still known as conditioning agents in the liquid shampoos according to the invention be used.

their the preferred proportion is between about 0.5 and about 5, in particular 1 to 3 wt .-% of the total composition.

Suitable are both volatile as well as semi-volatiles cyclic or linear polysiloxanes, for example those among the Trivial names "Dimethicone" or "Phenyldimethicone" and "Cyclomethicone" known silicone oils.

Also suitable, for example, in the EP 398 177 A2 described silicone derivatives which are used there in combination with alkyl polyglucosides in liquid detergent compositions.

Especially the concomitant use of per se known plant extracts is preferred, preferably in an amount of 0.01 to 10 wt .-%, calculated as dry residue the same on the total amount of the shampoo, by the Presence of the terpolymer be stabilized.

suitable aqueous (e.g. Steam-distilled), alcoholic or aqueous-alcoholic plant extracts are in particular extracts of leaves, fruits, flowers, roots, barks or stems of Aloe, Pineapple, Artichoke, Arnica, Valerian, Henbane, Birch, Nettles, echinacea, ivy, angelica, gentian, ferns, spruce needles, Broom, oats, rose hips, witch hazel, hay flowers, elderberry, hops, Coltsfoot, currants, camomiles, carrots, chestnuts, clover, Burdock roots, linden flowers, Lily of the valley, Seaweed, Melissa, Mistletoe, Passion Flowers, Ratanhia, Marigolds, Rosemary, horse chestnuts, Hawthorn, sage, horsetail, yarrow, cowslip, nettles, thyme, grape leaves or hawthorn.

Suitable commercial products are, for example, the various "Extrapone ^®", "Sedaplant ^®" and "Hexaplant ^®". Extracts and their preparation are also described in "Hager's Manual of pharmacy practice", 4th ed.,.

According to the invention become the shampoos of the invention visible particles in an amount of 0.05 to 1 G wt .-%, in particular 0.5 to 5 wt .-%, calculated on the shampoo added. By the presence of the terpolymer will make these particles in the shampoo Permanently dispersed and stabilized.

Such Particles are, for example, pigments such as pearlescent pigments or other color luster pigments, which are also surface-treated to enhance the luster, e.g. can be metallized.

Further particles may be colored microcapsules, filled or unfilled (cf., for example, US Pat EP 0 590 538 A1 ); also in the DE 197 38 247 A1 microparticles described are suitable.

Of the Particle diameter of these visible particles is between 50 and 3000, especially 50 and 2000 microns.

The Compositions of the invention can also contain dyes for the direct or oxidative coloring of hair, So-called tinting or dye shampoos.

It has become shown that the Addition of the terpolymer and the dyeing properties, in particular the dyeing intensity of such dyeing or tinting shampoos significantly increased.

Of the pH of the compositions of the invention is in the usual Range between about 5 and 8.5; For special products he can too be set below 5.

The viscosity is preferably in the range between 2000 and 75,000 mPa · s at 25 ° C, preferably 5,000 to 60,000, in particular 10,000 to 50,000 mPa · s at 25 ° C, measured according to Brookfield or Hoppler at a shear stress of 10 sec ^-1 and a spindle no. 4 or 5.

Especially preferred are clear gelatinous Shampoos in the range between 15 000 and 40 000 mPa · s at 25 ° C.

The The following examples serve to illustrate the invention. The production the products of the invention done by stirring together of the individual components in water, being also premixes of various Components can be used.

Example 1 Gel shampoo Sodium lauryl ether sulfate (~ 2.5EO) 12.0 (% by weight) sodium lauroyl 2.0 C ₁₂ -C ₁₄ -alkyl glucoside (PD≅ 1.4) 5.0 cocoamidopropyl 2.5 Perfume 0.5 Ethyl acrylate / diethylaminoethyl methacrylate / C ₁₀ -C ₁₈ alkyl PEG-15 itaconate terpolymer 2.8 sodium benzoate 0.6 Polyquaternium-7 1.2 Microparticles (Floraspheres ^{R of} the company Floratech, diameter about 1300-1700μm) 2.0 PEG-60 hydrogenated castor oil 0.5 citric acid 1.0 water ad 100.0 PH value: 5.6 Viscosity at 25 ° C in the Brookfield viscometer, Spindle # 4 (5rpm): ~ 45 000 mPa · s

It was a shampoo with very good foaming power and good skin tolerance as well as better hair conditioning properties over one Shampoo obtained without terpolymer.

The Shampoo remained stable to viscosity when stored at 40 ° C for three months; the particles were still dispersed in the base.

Claims (6)

An aqueous shampoo composition comprising a) from 2.5 to 50% by weight of at least one anionic surfactant; b) from 0.5% to 25% by weight of at least one nonionic surfactant; c) 0.05 to 7.5% by weight of at least one hair conditioning polymer; d) from 0.25% to 10% by weight of a C ₁ -C ₄ alkyl acrylate / dimethyl or diethylaminoethyl (meth) acrylate / C ₁₀ -C ₃₀ alkyl polyethylene glycol 10-30 itaconate terpolymer, and (e ) 0.05 to 10% by weight of particles visible in the composition having a particle diameter between 50 and 3000 μm, calculated in each case on the total composition. Composition according to claim 1, comprising as anionic surfactant a mixture of a sulfate, sulfonate, phosphate and / or carboxylate surfactant and a C ₈ -C ₁₈ acylaminocarboxylic acid in a weight ratio of 10: 1 to 1: 3. Agent according to claim 2, containing lauroylglutamate or a water-soluble one Salt thereof. Composition according to one or more of claims 1 to 3, comprising as nonionic surfactant at least one alkylpolyglucoside of the formula RO- (R ¹ O) _n -Z _x wherein R is an alkyl group having 8 to 18 carbon atoms, R ^{1 is} an ethylene or propylene group, Z is a saccharide radical having 5 to 6 carbon atoms, n is a number from 0 to 10, and x is a number between 1 and 5. Agent according to one or more of claims 1 to 4, containing 0.5 to 15 wt .-% of at least one amphoteric and / or zwitterionic surfactant calculated on the total composition. Composition according to one or more of claims 1 to 5, containing 0.01 to 10 wt .-%, calculated on the dry residue and the total composition, at least one aqueous, alcoholic or aqueous-alcoholic plant extract.