WO2014095163A2 - Foam aerosol for increasing volume - Google Patents

Abstract

Foams produced from a cosmetic product, containing, in a cosmetically acceptable carrier, a) at least one copolymer A constituted of the monomers a1) n-butylmethacrylate, a2) methacrylic acid, a3) ethyl acrylate and optionally additional monomers, b) at least one propellant, and c) water, are especially suitable for increasing the volume of keratin fibers.

Description

"Foam aerosol for volume increase"

The invention is in the technical field of forming and fixing the shape of keratin-containing fibers, in particular human hair. In principle, all animal hairs, e.g. Wool, horsehair, angora hair, furs, feathers and products or textiles made from them. Preferably, however, according to the invention, the keratin fibers are human hair.

The use of polymers in various cosmetic products is widespread. They are found in agents for the treatment of the skin as well as in means for the treatment of hair, in agents which are washed off or washed off again immediately after use, so-called rinse-off products, as well as in compositions which are applied to the skin or skin Hair remains, so-called leave-on remedies. The polymers are used for various reasons and in each case exploited certain properties of the polymers. In agents for skin treatment, in shampoos, hair conditioners and hair treatments, the thickening or care properties of the polymers are often in the foreground. In means for the temporary deformation of keratinous fibers, hereinafter also referred to as styling agents, in addition to these properties, above all film-forming and / or strengthening effects are required. Often polymers also serve as an aid to improve the deposition and fixation of other active ingredients and ingredients on the skin or hair or make it possible. Thus, for example, by adding suitable polymers to hair dyes, the rubbing fastness and the stability of the dyeing can be increased.

In the case of styling agents, it is necessary for the polymers used to give the treated hair the strongest possible hold. However, in addition to a high degree of hold, styling agents must meet a whole range of other requirements. These may be broadly subdivided into properties on the hair, properties of the particular formulation, eg properties of the foam, of the gel or of the sprayed aerosol, and of properties relating to the handling of the styling agent, the properties of the hair being of particular importance. Particularly noteworthy are moisture resistance, low tackiness and a balanced conditioning effect. Furthermore, a styling agent should be universally applicable as possible for all hair types. The temporary reshaping of keratin-containing fibers usually seeks to fix a shape newly imprinted on the fiber collective, in the case of hair of a new hairstyle. This hairstyle does not necessarily mean a revolutionary because drastic shape change. Often, subtle effects such as volume effects are sought, which in particular gives a fiber collective of thin keratin-containing fibers more volume through more volume. As a result, the fibers no longer hang smoothly and close to the scalp, but take up more volume and provide more fullness. If the keratin-containing fibers are hairs, then hair fullness and hair volume can be additionally achieved by the hairs in the region of the hairline not immediately falling tightly onto the scalp, but initially protruding radially from the scalp by the hair fixation by means of a firming polymer, before the hair tip region of the fiber sinks down by gravity.

International Patent Application WO 2012/072774 A1 describes a terpolymer having good cosmetic properties, in particular in the field of hair care and hair styling. This terpolymer is obtained by polymerization of the monomers n-butyl methacrylate, methacrylic acid, and ethyl acrylate.

The object of the present invention was therefore to provide a cosmetic agent which gives keratin-containing fibers, in particular human hair, more volume and fullness. The volumizing is to last long without the need for flexibility and good moisture resistance - especially welding and water resistance.

This technical problem could be solved by the cosmetic agent of the first subject of the invention.

A first subject of the invention is a cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

c) water. The copolymers A used according to the invention are obtained by polymerization of the monomers n-butyl methacrylate, methacrylic acid and ethyl acrylate and optionally further monomers. Preferred copolymers A consist of at least 90% by weight, preferably at least 95% by weight and in particular at least 97% by weight, of the monomers n-butyl methacrylate, methacrylic acid and ethyl acrylate. Particularly preferred are copolymers A, which were obtained as terpolymer exclusively from the monomers n-butyl methacrylate, methacrylic acid and ethyl acrylate.

In a preferred embodiment, the copolymers A have 80 to 80 wt .-% of n-butyl methacrylate, 10 to 30 wt .-% methacrylic acid and 5 to 15 wt .-% ethyl acrylate based on their weight, wherein copolymers A with a weight fraction of the monomers from 65 to 75% by weight of n-butyl methacrylate, 15 to 25% by weight of methacrylic acid and 8 to 12% by weight of ethyl acrylate are particularly preferred. Very particularly preferred copolymers A have a weight fraction of the monomers of from 67 to 72% by weight of n-butyl methacrylate, from 18 to 23% by weight of methacrylic acid, from 9 to 11% by weight of ethyl acrylate.

The copolymers A preferably have a molecular weight of about 100 kDa. The glass transition temperature is preferably between 80 and 120 ° C, in particular between 85 to 105 ° C.

The copolymers A described above are, for example, under the name Fix Tilamar ^® A140 (INCI: Acrylates copolymer; CAS Number: 26715-43-5), from DSM sold.

Preferred agents according to the invention are characterized in that, based on the total weight of the composition according to the invention, the copolymer A contains from 0.5 to 10% by weight, preferably from 3.0 to 8.0% by weight.

The copolymer A is used in the cosmetic composition according to the invention preferably in teilneutraliserter or neutralized form. For neutralization, at least one (C ₂ -C ₆ ) -alkanolamine is preferably used. The alkanolamines which can be used as alkalizing agents according to the invention are preferably selected from primary amines having a C ₂ -C ₆ -alkyl basic body which carries at least one hydroxyl group. Particularly preferred alkanolamines are selected from the group formed from 2-aminoethan-1-ol (monoethanolamine), tris (2-hydroxyethyl) amine (triethanolamine), 3-aminopropan-1-ol, 4-aminobutane-1 -ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol , 3-Amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropane-1, 2-diol, 2-amino-2-methylpropane-1,3-diol. Very particular according to the invention preferred alkanolamines are selected from the group 2-aminoethane-1-ol, 2-amino-2-methylpropan-1-ol and 2-amino-2-methyl-propane-1, 3-diol. 2-amino-2-methylpropanol has proven to be a particularly suitable neutralizing agent. Cosmetic agents preferred according to the invention therefore contain 2-amino-2-methylpropanol. The 2-amino-2-methylpropanol is preferably used in the compositions according to the invention in an amount which does not exceed the amount required for the neutralization of the copolymer A. The amounts of 2-amino-2-methylpropanol used in the agents according to the invention are preferably from 80 to 100%, particularly preferably from 90 to 100% and in particular from 95 to 100% of the amount required for complete neutralization of the copolymer A. In a preferred embodiment, the proportion by weight of (C ₂ -C ₆ ) -alkanolamine, in particular of 2-amino-2-methylpropanol, in the total weight of the cosmetic agent is from 0.05 to 4.0% by weight, preferably from 0.1 to 2.5% by weight and in particular 0.2 to 2.0% by weight.

The cosmetic agents according to the invention may contain, in addition to the previously described copolymer A, at least one further setting polymer which is different from the previously described copolymer A. Firming polymers contribute to the retention of the imprinted shape of the fiber collective, e.g. the total hairstyle, at. These polymers are at the same time also film-forming polymers and therefore generally typical substances for shaping hair treatment agents such as hair fixatives, hair foams, hair waxes, hair sprays. The film formation can be quite selective and connect only a few fibers.

Film-forming polymers are polymers which leave a continuous film on the skin, the hair or the nails when drying. Such film formers can be used in a wide variety of cosmetic products, such as for example face masks, make-up, hair fixatives, hair sprays, hair gels, hair waxes, hair treatments, shampoos or nail varnishes. Particular preference is given to polymers which have a sufficient solubility in water or water / alcohol mixtures in order to be present in completely completely dissolved form in the agent according to the invention. The film-forming polymers may be of synthetic or natural origin.

According to the invention, film-forming polymers are understood as meaning polymers which, when used in 0.01 to 20% strength by weight aqueous, alcoholic or aqueous-alcoholic solution, are capable of depositing a transparent polymer film on the hair.

The additional setting polymers are preferably selected from nonionic setting polymers, amphoteric setting polymers, cationic setting polymers and anionic setting polymers, more preferably among nonionic setting polymers, anionic setting polymers, amphoteric setting polymers. The agent according to the invention preferably additionally contains at least one consolidating nonionic polymer containing at least one structural unit selected from the group of the structural units of the formulas M1) to (M6)

 wherein

 R is a hydrogen atom or a methyl group,

R 'represents a hydrogen atom or a (C 1 to C ₄ ) -acyl group,

R "and R""independently of one another represent a (C 1 to C ₇ ) -alkyl group or a hydrogen atom

R '"represents a linear or branched (C-ι-C ₄₎ alkyl group or a (C ₂ to C ₄₎ - hydroxyalkyl group.

According to the above formulas and all following formulas, a chemical bond marked with the symbol ^{* stands} for a free valency of the corresponding structural fragment.

The additional strengthening nonionic polymers (b) are in the composition according to the invention preferably in an amount of 0, 1 wt .-% to 20.0 wt .-%, particularly preferably from 0.2 wt .-% to 15.0 wt. -%, most preferably from 0.5 wt .-% to 10.0 wt .-%, each based on the weight of the composition according to the invention.

Preferred nonionic film-forming and / or nonionic hair-fixing polymers (b) are homopolymers or copolymers which are composed of at least one of the following monomers: N-vinylpyrrolidone, N-vinylcaprolactam, vinyl esters (such as vinyl acetate, vinyl alcohol), acrylamide, methacrylamide, Alkyl and dialkylacrylamide (especially N-methyl and N, N-dimethylacrylamide), alkyl and dialkylmethacrylamide (especially N-methyl and N, N-dimethylmethacrylamide), alkyl acrylate, alkyl methacrylate, wherein in each case the alkyl groups of these monomers from (Ci to C ₃ ) - alkyl groups are selected. Nonionic polymers based on ethylenically unsaturated monomers which are particularly suitable for the compositions according to the invention contain at least one of the following structural units

wherein R 'represents a hydrogen atom or a (d- to C ₃₀ ) acyl group, in particular a hydrogen atom or an acetyl group.

Particularly suitable are homopolymers of vinyl caprolactam or vinyl pyrrolidone (such as Luviskol ^® K 90 or Luviskol ^® K 85 from BASF SE), copolymers of vinylpyrrolidone and vinyl acetate (Here it is again preferred if the molar ratio of the contained from the monomer N-vinyl pyrrolidone Structural units to the structural units of the polymer contained from the monomer vinyl acetate in the range of 20 to 80 to 80 to 20, in particular from 30 to 70 to 60 to 40, for example, sold under the trademark Luviskol ^® VA 37, Luviskol ^® VA 55, Luviskol ^® VA 64 and Luviskol ^® VA 73 (from the firm BASF SE), terpolymers of vinylpyrrolidone, vinyl acetate and vinyl propionate, polyacrylamides such as Akypomine ^® P 191 (from the company CHEM-Y), polyvinylalcohols for example, under the trade designations Elvanol ^® from Du Pont or Vinol ^® marketed by Air Products 523/540) terpolymers of vinylpyrrolidone, Methac rylamid and imidazole (such as Luviset.RTM ^® Clear from BASF SE).

(B) at least one polymer selected from the group formed as a film-forming nonionic and / or setting nonionic polymer

 polyvinylpyrrolidone,

 Copolymers of N-vinylpyrrolidone and vinyl esters of carboxylic acids having 2 to 18 carbon atoms, in particular N-vinylpyrrolidone and vinyl acetate,

are very particularly preferred according to the invention.

Within the scope of one possible embodiment, the composition according to the invention contains at least one consolidating cationic polymer as additional strengthening polymer.

Cationic polymers are to be understood as meaning polymers which have a group in the main and / or side chain which may be "temporary" or "permanent" cationic. According to the invention, "permanently cationic" refers to those polymers which have a cationic group, irrespective of the pH of the agent. These are usually polymers that a quaternary nitrogen atom, for example in the form of an ammonium group. Preferred cationic groups are quaternary ammonium groups. In particular, such polymers in which the quaternary ammonium group over a C |. _4- hydrocarbon group are bonded to a constructed from acrylic acid, methacrylic acid or their derivatives polymer backbone have been found to be particularly suitable.

 A cationic setting polymer which is preferably suitable according to the invention is at least one cationic setting polymer comprising at least one structural unit of the formula (M5) and at least one structural unit of the formula (V) and optionally at least one structural unit of the formula (VI)

worin

wherein

R and R ⁴ independently of one another represent a hydrogen atom or a methyl group,

A and A ² are each independently a group of ethane-1, 2-diyl, propane-1, 3-diyl or

Butane-1, 4-diyl,

R ² , R ³ , R ⁵ and R ⁶ independently of one another represent a (C 1 to C ₄ ) -alkyl group,

R ⁷ is a (C ₈ to C ₃₀ ) alkyl group.

 To compensate for the positive charge of the monomer (VI) are all possible physiologically acceptable anions, such as chloride, bromide, hydrogen sulfate, methyl sulfate, ethyl sulfate, tetrafluoroborate, phosphate, hydrogen phosphate, dihydrogen phosphate or p-toluenesulfonate, triflate.

Such compounds are for example as

 Copolymers of N-vinylpyrrolidone, N- (3-dimethylaminopropyl) methacrylamide and 3- (methacryloylamino) propyl-lauryl-dimethylammonium chloride (INCI name: Polyquaternium-55), which, for example, under the trade name Styleze W 10 or Styleze W 20 (10 or 20% by weight of active substance in ethanol-water mixture) is sold by the company ISP.

 Copolymers of N-vinylpyrrolidone, N-vinylcaprolactam, N- (3-

Dimethylaminopropyl) methacrylamide and 3- (methacryloylamino) propyl-lauryl-dimethylammonium chloride (INCI name: Polyquaternium-69), which is, for example sold under the trade name AquaStyle 300 (28-32 wt .-% active ingredient in ethanol-water mixture) from the company ISP.

 Other cationic polymers which can preferably be used in the agents according to the invention are the so-called "temporary cationic" polymers. These polymers usually contain an amino group which, at certain pH values, is present as quaternary ammonium group and thus cationic.

 Suitable temporary cationic polymers for the purposes of the invention likewise include those which have at least one structural unit of the formulas (M1-1) to (M1-8)

(M1-4)

(M1-8).

(M1-8).

In this case, preference is again given to those copolymers which contain at least one structural unit of the formulas (M1-1) to (M1-8) and additionally at least one structural unit of the formula (M10),

1 or 3 means.

Again, the group of polymers applies Vinylcaprolactam / vinylpyrrolidone / dimethylaminoethyl methacrylate-Co (for example, INCI name: Vinyl caprolactam / PVP / di-methylaminoethyl methacrylate copolymer (Gaffix ^® under the trade name VC 713 ISP)),

 Vinylpyrrolidone / vinylcaprolactam / dimethylaminopropyl methacrylamide copolymer

(for example, INCI name: VP / vinyl caprolactam / DMAPA acrylates copolymer under the trade name Aquaflex ^® SF-40 (ISP)),

 Vinylcaprolactam / vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer (for example as a 35-39% solids in ethanol in the form of the commercial product Advantage LC E with the INCI name: vinyl caprolactam / VP / dimethylaminoethyl methacrylate copolymer, alcohol, lauryl pyrrolidone (ISP)),

 Vinylpyrrolidone / dimethylaminopropylmethacrylamide copolymer (for example, INCI name: VP / DMAPA Acrylates Copolymer under the trade name Styleze CC-10 (10% by weight of active substance) (ISP)),

as a preferred list for selecting at least one or more polymers thereof.

In order to intensify the effect according to the invention, the agents according to the invention preferably additionally contain at least one surfactant, nonionic, anionic, cationic, ampholytic surfactants being suitable in principle. It is preferred according to the invention if the agent according to the invention additionally contains at least one surfactant selected from at least one compound from the group formed from anionic surfactants, nonionic surfactants and amphoteric surfactants. The group of ampholytic or amphoteric surfactants includes zwitterionic surfactants and ampholytes. The surfactants according to the invention may already have emulsifying activity.

The additional surfactants are in the inventive composition preferably in an amount of 0.01 wt .-% to 5 wt .-%, particularly preferably from 0.05 wt .-% to 0.5 wt .-%, each based on the Weight of the agent, included.

It has proved to be particularly preferred if the agents according to the invention additionally comprise at least one nonionic surfactant.

 Nonionic surfactants contain as hydrophilic group e.g. a polyol group, a polyalkylene glycol ether group, or a combination of polyol and polyglycol ether groups. Such compounds are, for example

Addition products of 2 to 100 moles of ethylene oxide and / or 1 to 5 moles of propylene oxide to linear and branched fatty alcohols having 8 to 30 carbon atoms, to fatty acids having 8 to 30 carbon atoms and to alkylphenols having 8 to 15 carbon atoms in the alkyl group . with a methyl or C ₂ - C ₆ - alkyl radical end-capped addition products of 2 to 50 moles of ethylene oxide and / or 1 to 5 moles of propylene oxide to linear and branched fatty alcohols having 8 to 30 carbon atoms, to fatty acids having 8 to 30 carbon atoms and with alkylphenols having 8 to 15 carbon atoms in the alkyl group, such as those available under the trade names Dehydol ^® LS, LT Dehydol ^® types (Cognis),

C 12 -C ₃₀ -fatty acid mono- and diesters of addition products of 1 to 30 mol of ethylene oxide with glycerol,

Addition products of 5 to 60 mol ethylene oxide onto castor oil and hydrogenated castor oil, polyol fatty acid esters, such as the commercially available product ^® Hydagen HSP (Cognis) or Sovermol - types (Cognis),

 alkoxylated triglycerides,

 alkoxylated fatty acid alkyl esters of the formula (E4-I)

R CO- (OCH ₂ CHR ² ) _w OR ³ (E4-I)

in which R is CO for a linear or branched, saturated and / or unsaturated acyl radical having 6 to 22 carbon atoms, R ^{2 is} hydrogen or methyl, R ^{3 is} linear or branched alkyl radicals having 1 to 4 carbon atoms and w is a number from 1 to 20 .

 Amine oxides,

 Hydroxy mixed ethers, as described, for example, in DE-OS 19738866, sorbitan fatty acid esters and addition products of ethylene oxide onto sorbitan fatty acid esters, for example the polysorbates,

 Sugar fatty acid esters and addition products of ethylene oxide with sugar fatty acid esters, addition products of ethylene oxide onto fatty acid alkanolamides and fatty amines,

 Sugar surfactants of the alkyl and alkenyl oligoglycoside type of formula (E4-II),

R ⁴ 0- [G] _p (E4-II)

in which R ^{4 is} an alkyl 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 by the relevant methods of preparative organic chemistry.

The alkylene oxide addition products of saturated linear fatty alcohols and fatty acids with in each case 2 to 100 mol of ethylene oxide per mole of fatty alcohol or fatty acid have proven to be very particularly preferred nonionic surfactants. Preparations having outstanding properties are also obtained when the nonionic surfactant C ₁₂ -C ₃ o- fatty acid mono- and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol and / or addition products of 5 to 60 mol ethylene oxide onto castor oil and hydrogenated castor oil contain. The agents according to the invention as surfactant very particularly preferably contain at least one addition product of from 15 to 100 mol of ethylene oxide, in particular from 15 to 50 mol of ethylene oxide, to a linear or branched (in particular linear) fatty alcohol having from 8 to 22 carbon atoms. These are very particularly preferably Ceteareth-15, Ceteareth-25 or Ceteareth- 50, which are marketed as Eumulgin ^® CS 15 (Cognis), Cremophor A25 (BASF SE) or Eumulgin ^® CS 50 (Cognis).

Suitable anionic surfactants are in principle all anionic surfactants suitable for use on the human body. These are characterized by a water-solubilizing, anionic group such as. As a carboxylate, sulfate, sulfonate or phosphate group and a lipophilic alkyl group having about 8 to 30 carbon atoms. In addition, glycol or polyglycol ether groups, ester, ether and amide groups and hydroxyl groups may be present in the molecule. Examples of suitable anionic surfactants are, in each case in the form of the sodium, potassium and ammonium as well as the mono-, di- and trialkanolammonium salts having 2 to 4 C atoms in the alkanol group,

 linear and branched fatty acids with 8 to 30 carbon atoms (soaps),

Ether carboxylic acids of the formula R-O- (CH 2 -CH 2 O) _x -CH 2 -COOH, in which R is a linear alkyl group having 8 to 30 C atoms and x = 0 or 1 to 16,

 Acylsarcosides having 8 to 24 carbon atoms in the acyl group,

 Acyltaurides having 8 to 24 carbon atoms in the acyl group,

 Acyl isethionates having 8 to 24 carbon atoms in the acyl group,

 Sulfosuccinic acid mono- and dialkyl esters having 8 to 24 C atoms in the alkyl group and sulfosuccinic acid monoalkylpolyoxyethyl esters having 8 to 24 C atoms in the alkyl group and 1 to 6 oxyethyl groups,

 linear alkanesulfonates having 8 to 24 C atoms,

 linear alpha-olefin sulfonates having 8 to 24 C atoms,

 Alpha-sulfofatty acid methyl esters of fatty acids having 8 to 30 carbon atoms,

Alkyl sulfates and alkyl polyglycol ether sulfates of the formula R-O (CH ₂ -CH ₂ O) _x -OSO ₃ H, in which R is a preferably linear alkyl group having 8 to 30 C atoms and x = 0 or 1 to 12,

 Mixtures of surface-active hydroxysulfonates,

 sulfated hydroxyalkylpolyethylene and / or hydroxyalkylene glycol ethers,

 Sulfonates of unsaturated fatty acids having 8 to 24 carbon atoms and 1 to 6 double bonds, esters of tartaric acid and citric acid with alcohols which are adducts of about 2-15 molecules of ethylene oxide and / or propylene oxide with fatty alcohols having 8 to 22 carbon atoms,

sulfated fatty acid alkylene glycol esters of the formula (E1-II) R ⁷ CO (AlkO) _n S0 ₃ M (E1 -II)

in the R ⁷ CO- for a linear or branched, aliphatic, saturated and / or unsaturated acyl radical having 6 to 22 carbon atoms, Alk for CH ₂ CH ₂ , CHCH ₃ CH ₂ and / or CH ₂ CHCH ₃ , n for numbers from 0.5 to 5 and M is a cation, as described in DE-OS 197 36 906,

 amide ether carboxylic acids,

Condensation products of C ₈ - C ₃₀ - fatty alcohols with protein hydrolysates and / or amino acids and their derivatives, which are known to the skilled person as protein fatty acid condensates, such as Lamepon ^® - types Gluadin ^® - types Hostapon ^® KCG or Amisoft ^® - types,

 Dimethicone.

Dimethicone copolyols are understood according to the invention as meaning preferably polyoxyalkylene-modified dimethylpolysiloxanes of the general formulas (Si-1) or (Si-2):

wherein

 the radical R is a hydrogen atom, an alkyl group having 1 to 12 C atoms, a

Alkoxy group having 1 to 12 C atoms or a hydroxyl group,

 the radicals R 'and R "denote alkyl groups having 1 to 12 C atoms,

 x is an integer from 1 to 100, preferably from 20 to 30,

 y is an integer from 1 to 20, preferably from 2 to 10 and

 a and b are integers from 0 to 50, preferably from 10 to 30.

Particularly preferred dimethicone copolyols according to the invention are, for example, the products sold commercially under the trade name SILWET (Union Carbide Corporation) and DOW CORNING (Dow). Particularly preferred dimethicone copolyols according to the invention are Dow Corning 190 (INCI name: PEG / PPG-18/18 dimethicone) and Dow Corning 193 (INCI name: PEG-12 dimethicone) (Dow).

Zwitterionic surfactants are surface-active compounds which contain at least one quaternary ammonium group and at least one -COO ^<_) in the molecule - Wear group - or -S0 ₃ ^<_). Particularly suitable zwitterionic surfactants are the so-called betaines such as N-alkyl-N, N-dimethylammonium glycinates, for example cocoalkyl dimethylammonium glycinate, N-acylaminopropyl N, N-dimethylammonium glycinates, for example cocoacylaminopropyldimethylammonium glycinate, and 2-alkyl-3-carboxymethyl-3-hydroxyethyl-imidazolines having in each case 8 to 18 C atoms in the alkyl or acyl group, and the cocoacylaminoethylhydroxyethylcarboxymethylglycinate. A preferred zwitterionic surfactant is the fatty acid amide derivative known by the INCI name Cocamidopropyl Betaine.

Ampholytes are surface-active compounds which, apart from a C ₈ - C ₂ 4 - alkyl or acyl group, contain at least one free amino group and at least one -COOH or -S0 ₃ H group in the molecule and are capable of forming inner salts , Examples of suitable ampholytes are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids each having about 8 to 24 C atoms in the alkyl group. Particularly preferred ampholytes are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C ₁₂ -C ₁₈ acylsarcosine.

The agents according to the invention necessarily comprise a cosmetically acceptable carrier. Preferred cosmetically acceptable carriers are aqueous, alcoholic or aqueous-alcoholic media. Preferred cosmetic agent contain, based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, most preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt. -%.

As alcohols, it is possible in particular to include the lower alcohols having 1 to 4 carbon atoms usually used for cosmetic purposes, such as, for example, ethanol and isopropanol. Additional co-solvents may include other organic solvents or a mixture of solvents. Particularly suitable as additional co-solvents are unbranched or branched hydrocarbons such as hexane, isopentane and cyclic hydrocarbons such as cyclopentane and cyclohexane. The cosmetic compositions preferably have a pH (25 ° C.) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5. Agents with these preferred pH values have a particularly good skin tolerance. Due to their pH, corresponding formulations are also suitable for compounding in metallic aerosol cans.

In addition to the copolymers and excipients described above, the cosmetic compositions of the invention may contain further ingredients. The group of these other ingredients include in particular the cosmetically active auxiliaries and additives.

As suitable auxiliaries and additives in particular additional care substances are mentioned.

As a care material, for example, a silicone oil and / or a silicone gum can be used.

Silicone oils or silicone gums which are suitable according to the invention are in particular dialkyl and alkylaryl siloxanes, for example dimethylpolysiloxane and methylphenylpolysiloxane, and also their alkoxylated, quaternized or else anionic derivatives. Preference is given to cyclic and linear polydialkylsiloxanes, their alkoxylated and / or aminated derivatives, dihydroxypoly-dimethylsiloxanes and polyphenylalkylsiloxanes.

As a care substance of another class of compounds, the agent may contain, for example, at least one protein hydrolyzate and / or one of its derivatives. Protein hydrolysates are product mixtures obtained by acid, alkaline or enzymatically catalyzed degradation of proteins (proteins). According to the invention, the term protein hydrolyzates also means total hydrolyzates as well as individual amino acids and their derivatives as well as mixtures of different amino acids. The molecular weight of the protein hydrolysates which can be used according to the invention is between 75, the molecular weight for glycine, and 200,000, preferably the molecular weight is 75 to 50,000 and very particularly preferably 75 to 20,000 daltons.

As a care substance, the agent according to the invention may further comprise at least one vitamin, a provitamin, a vitamin precursor and / or one of their derivatives. According to the invention, such vitamins, provitamins and vitamin precursors are preferred, which are usually assigned to groups A, B, C, E, F and H.

As with the addition of glycerin and / or propylene glycol, the addition of panthenol increases the flexibility of the polymer film formed using the composition of the present invention. As a conditioner, the compositions according to the invention may further contain at least one plant extract, but also mono- or oligosaccharides and / or lipids.

Furthermore, oil bodies are suitable as a care substance. The natural and synthetic cosmetic oil bodies include, for example, vegetable oils, liquid paraffin oils, isoparaffin oils and synthetic hydrocarbons and di-n-alkyl ethers having a total of between 12 and 36 carbon atoms, in particular 12 to 24 carbon atoms.

Esteröle, that is, esters of C ₆ - C ₃₀ - fatty acids with C ₂ - C ₃₀ - fatty alcohols, preferably Monoester of fatty acids with alcohols having from 2 to 24 carbon atoms such as isopropyl myristate (IPM Rilanit ^®), isononanoic acid C16-18- alkyl ester (Cetiol ^® SN), 2-ethylhexyl palmitate (Cegesoft ^® 24), stearic acid-2-ethylhexyl ester (Cetiol ^® 868), cetyl oleate, glycerol tricaprylate, cocofatty alcohol-caprinatV caprylate (Cetiol ^® LC), n-butyl stearate, oleyl erucate (Cetiol ^® J (600), isopropyl palmitate (Rilanit ^® IPP), oleyl Oleate (Cetiol ^®), hexyl laurate Cetiol ^® A), di-n-butyl adipate (Cetiol ^® B), myristyl myristate (Cetiol ^® MM), Cetearyl Isononanoate (Cetiol ^® SN) oleate (Cetiol ^® V) are more preferred caring oil body.

A preferred cosmetic agent according to the invention is characterized in that the cosmetic agent, based on its total weight, 0.01 to 5.0 wt .-%, preferably 0.02 to 4.0 wt .-% and in particular 0.05 to 2 , 0 wt .-% of an oil body.

Also suitable as conditioners are dicarboxylic acid esters, symmetrical, unsymmetrical or cyclic esters of carbonic acid with fatty alcohols, triflic acid esters of saturated and / or unsaturated linear and / or branched fatty acids with glycerol or fatty acid partial glycerides, which are understood to mean monoglycerides, diglycerides and technical mixtures thereof.

The formulation of the agents according to the invention is most preferably applied to the hair as an aerosol foam. Consequently, the agent according to the invention necessarily contains at least one propellant.

The compositions according to the invention are packaged in a dispensing device which represents an additional compressed gas container filled with a propellant ("aerosol container"). The pressurized gas containers, with the aid of which a product is distributed by the internal gas pressure of the container via a valve, are defined as "aerosol containers "As a" non-aerosol container "is inversely to the aerosol definition a container under atmospheric pressure defined by which a product is distributed by means of a mechanical action by a pumping or squeezing system.

The compositions of the invention can be prepared in the usual manner. In general, all constituents of the composition according to the invention, with the exception of the blowing agent, are introduced into a suitable pressure-resistant container. This is then closed with a valve. By conventional techniques, finally, the desired amount of blowing agent is introduced.

The blowing agent is preferably present in the compositions according to the invention in amounts of from 1 to 35% by weight, based on the total product. Amounts of 2 to 30 wt .-%, in particular from 3 to 15 wt .-% are particularly preferred.

With regard to the quantity ratio of blowing agent to the other constituents of the preparations, the sizes of the foam bubbles and the respective size distribution can be set for a given spraying device.

In the embodiment as aerosol foam suitable propellants are for example selected from N ₂ 0, dimethyl ether, C0 ₂ , air, alkanes having 3 to 5 carbon atoms, such as propane, n-butane, iso-butane, n-pentane and iso-pentane, and their mixtures. According to the embodiment of an aerosol foam, the alkanes mentioned, mixtures of said alkanes or mixtures of said alkanes with dimethyl ether are preferably used as sole blowing agent. However, the invention expressly also includes the concomitant use of propellants of the type of chlorofluorocarbons, but in particular of fluorocarbons.

Dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds particularly preferably form the blowing agent according to the invention. Very particular preference is given to using mixtures of propane and butane as the sole blowing agent in a weight ratio of propane to butane of from 70 to 30 to 15 to 85. These mixtures are again preferably present in the compositions according to the invention in an amount of from 3 to 15% by weight the weight of the entire agent - used. Butane according to the invention is understood to mean n-butane, isobutane and mixtures of n-butane and isobutane.

For the foaming of gel-like agents in a two-chamber aerosol container isopentane is preferably suitable as a propellant, which is incorporated into the compositions according to the invention and is packaged in the first chamber of the two-chamber aerosol container. In the second chamber of the two-chamber aerosol container, at least one other, isopentane made up of different blowing agent, which builds up a higher pressure in the two-chamber aerosol container than isopentane. The blowing agents of the second chamber are preferably selected from N ₂ O, dimethyl ether, C0 ₂ , air, alkanes having 3 or 4 carbon atoms (such as propane, n-butane, iso-butane) and mixtures thereof.

Embodiments of the invention which are preferred according to the invention are in particular the embodiments (A) to (Z):

 (A): Cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) alkanolamine.

 (B): Cosmetic agent containing in a cosmetically acceptable vehicle

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) -alkanolamine,

 e) at least one nonionic surfactant.

 (C): Cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) -alkanolamine,

 e) at least one nonionic surfactant.

f) at least one nonionic, setting polymer. (D): Cosmetic composition having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, more preferably from 6.5 to 7.5, contained in one cosmetically acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) alkanolamine.

 (E): Cosmetic agent having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in a cosmetic acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) -alkanolamine,

 e) at least one nonionic surfactant.

 (F): Cosmetic agent having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in a cosmetic acceptable carrier

 a) at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) at least one propellant,

 c) water,

d) at least one (C ₂ -C ₆ ) -alkanolamine,

 e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (G): Cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers based on the weight of the copolymer

a1) 60 to 80% by weight of n-butyl methacrylate a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one propellant,

 c) water.

 (H): Cosmetic agent containing in a cosmetically acceptable vehicle

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol.

(I): Cosmetic agent containing in a cosmetically acceptable vehicle

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (J): Cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

a2) 10 to 30% by weight of methacrylic acid a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (K): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol.

 (L): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%, d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (M): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier

 a) at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) at least one blowing agent selected from dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) at least one (C ₂ -C ₆ ) -alkanolamine, in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (N): Cosmetic composition, contained in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol.

(O): Cosmetic composition, contained in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

a2) methacrylic acid a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (P): Cosmetic composition containing, in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (Q): Cosmetic agent having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, more preferably from 6.5 to 7.5, contained in one cosmetically acceptable carrier based on their total weight in a total of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol. (R): Cosmetic agent having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, more preferably from 6.5 to 7.5, contained in one cosmetically acceptable carrier based on their total weight in a total of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (S): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier based on their total weight in a total of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers

 a1) n-butyl methacrylate

 a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) water,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (T): Cosmetic composition, contained in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

a2) 10 to 30% by weight of methacrylic acid a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) from 1 to 35% by weight, preferably from 2 to 30% by weight, particularly preferably from 3 to 15% by weight, of at least one propellant,

 c) based on their total weight has a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

 (U): Cosmetic composition containing, in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

 c) based on their total weight has a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol.

(V): Cosmetic composition, contained in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%, d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (W): Cosmetic composition, contained in a cosmetically acceptable vehicle, based on its total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 f) at least one nonionic, setting polymer.

 (X): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier based on their total weight in a total of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%, d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, (Y): cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, more preferably from 6.5 to 7.5, contained in a cosmetically acceptable carrier based on their total weight in a total amount of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic surfactant.

 (Z): Cosmetic agent, having a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, comprising in one cosmetically acceptable carrier based on their total weight in a total of

 a) 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%, of at least one copolymer A from the monomers based on the weight of the copolymer

 a1) 60 to 80% by weight of n-butyl methacrylate

 a2) 10 to 30% by weight of methacrylic acid

 a3) 5 to 15% by weight of ethyl acrylate

 and optionally a maximum of 5 wt .-% of other monomers

 b) 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 wt .-%, of at least one blowing agent, selected from dimethyl ether, propane, n-butane, iso-butane or mixtures from at least two of these compounds,

 c) based on their total weight, a water content of 30 to 97 wt .-%, particularly preferably 40 to 95 wt .-%, very particularly preferably from 50 to 90 wt .-% and in particular from 60 to 90 wt .-%,

d) 0.1 to 4.0 wt .-%, preferably 0.2 to 3.0 wt.% And in particular 0.5 to 2.0 wt .-%, at least one (C ₂ -C ₆ ) alkanolamine , in particular 2-amino-2-methylpropan-1-ol, e) at least one nonionic, setting polymer.

For the preferred embodiments (A) to (Z), in turn, the embodiments of the features mentioned hereinbefore mutatis mutandis are considered to be preferred.

All means of the first subject of the invention are very particularly preferred to be foamed by dispensing container from an Aerosolbe. The resulting foam of the agent according to the invention is a very particularly preferred form of application.

A second subject of the invention is the use of a cosmetic agent of the first subject of the invention for increasing the volume of keratin-containing fibers, in particular human hair.

As stated at the outset, the agents according to the invention are distinguished, in particular, by improved retention of the volume of the keratin-containing fibers obtained.

A third subject of the invention is a method for increasing the volume of keratinous fibers, in particular human hair, characterized in that a cosmetic agent of the first subject of the invention in the form of a foam from an Aerosolbe container is applied to the keratinic fibers.

It is inventively preferred to apply the cosmetic agent of the first subject of the invention to the region of the hairline.

Furthermore, it has been found preferable if the keratinic fibers are not rinsed after the action of the cosmetic product of the first subject of the invention and the agent is left on the fiber.

A fourth subject of the invention is a product comprising

i) a dispensing device in the form of a compressed gas container, and

ii) a cosmetic agent in the dispenser of the first subject of the invention.

A particular embodiment is described by the following points:

1. Cosmetic agent containing in a cosmetically acceptable carrier

 a) at least one copolymer A from the monomers

a1) n-butyl methacrylate a2) methacrylic acid

 a3) ethyl acrylate

 and optionally other monomers,

 b) at least one propellant,

c) water. Cosmetic composition according to item 1, characterized in that the copolymers A based on the weight of the copolymer A from 60 to 80 wt .-% n-butyl methacrylate, 10 to 30 wt .-% of methacrylic acid and 5 to 15 wt .-% ethyl acrylate on cosmetic Composition according to item 1 or 2, characterized in that it contains, based on its total weight, the copolymer A in an amount of 0.5 to 10 wt .-%, preferably from 3.0 to 8.0 wt .-%. Cosmetic agent according to one of the items 1 to 3, characterized in that based on the total weight of the cosmetic agent, the blowing agent in amounts of 1 to 35 wt .-%, preferably from 2 to 30 wt .-%, particularly preferably from 3 to 15 Wt .-%, is included. Cosmetic composition according to one of the items 1 to 4, characterized in that dimethyl ether, propane, n-butane, isobutane or mixtures of at least two of this compound form the blowing agent according to the invention. Cosmetic composition according to one of the items 1 to 5, characterized in that based on its total weight it has a water content of 30 to 97% by weight, particularly preferably 40 to 95% by weight, very particularly preferably 50 to 90% by weight. % and in particular from 60 to 90 wt .-% possesses. Cosmetic composition according to any one of items 1 to 6, characterized in that it has a pH (25 ° C) of from 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6.5 to 7.5, has. Cosmetic agent according to one of the items 1 to 7, characterized in that the cosmetic agent contains at least one (C ₂ -C ₆ ) -alkanolamine (in particular 2-amino-2-methylpropanol). Cosmetic agent according to item 8, characterized in that the proportion by weight of (C ₂ -C ₆ ) -alkanolamine (in particular of 2-amino-2-methylpropanol) in the total weight of the cosmetic agent is 0.1 to 4.0% by weight 0.2 to 3.0% by weight and especially 0.5 to 2.0% by weight. Cosmetic composition according to one of the items 1 to 9, characterized in that it additionally contains at least one different from the copolymer A setting polymer. Cosmetic composition according to one of the items 1 to 10, characterized in that it additionally contains at least one surfactant (in particular selected from at least one compound of the group which is formed from anionic surfactants, nonionic surfactants and amphoteric surfactants). Use of a cosmetic agent according to one of the items 1 to 1 1 for increasing the volume of keratin-containing fibers, in particular human hair. Method for increasing the volume of keratinic fibers, in particular human hair, characterized in that a cosmetic agent according to any one of items 1 to 1 1 is applied to the keratinic fibers in the form of a foam from an aerosol container. Product comprising

i) a dispensing device in the form of a compressed gas container, and

ii) a cosmetic agent in the dispenser according to any one of items 1 to 1. Foam, characterized in that it is produced from a cosmetic agent according to any one of items 1 to 11.

B e i s p e e l e

The following compositions were prepared by mixing the specified raw materials (the amounts are understood - unless otherwise stated - in percent by weight):

^* 40 wt .-% aqueous dispersion of a terpolymer of the monomers a1) n-

Butyl methacrylate, a2) methacrylic acid, a3) ethyl acrylate

* ^* Copolymer of vinylpyrrolidone and vinyl acetate (60:40) (50% active in water,

INCI name: VP / VA copolymer) (BASF)

These compositions were tested for hair volume by a ring test and hairline volume measurement.

1.0 ring test

Standard hair strands from the company Kerling of the hair type "European Natural, color 7/0 (batch no .: 04/2012, B3) of a length (L _max ) of 220 mm and a weight of 2.8 g were used. For preparation, the strands were bleached with a commercially available bleach medium (Poly Blonde). The hair tresses were stored for at least 48 h at 25 ° C and 25% relative humidity.

0.15 g per gram of hair were applied in each case by the compositions E and V to one moistened strand of hair in each case. Each untreated reference strand and the strands treated with the test compositions were clamped in the holder of a torsion device at both ends. The top strand end was rotated 5 times around the strand axis. The tress was dry-blushed for 45 minutes in this position. Then, the strands were stored in the twisted state for 16 h at 50% relative humidity and 23 ° C and removed from the holder. Thereafter, the strands were 5 times with the coarse toothing and 5 times with the fine toothing of a comb (Hercules Sägemann, Hardplastikkamm with fine zincation) Five hair strands were measured per composition and the arithmetic mean of the measured value was determined as follows:

The combed tress was hung immediately after combing into the measuring cell of the measuring device (stress-strain system MTT 175 with ring (diameter: 10 mm); control unit: UV 1000 (Dia-Stron Ltd, UK)). The top of the tress is inserted into the ring and the tress is then pulled through the ring at a rate of 100 mm / min. The required force and distance are recorded.

The greater the force required, the more voluminous the strand of hair.

2.0 hairline volume measurement

Standard hair strands from the company Kerling of the hair type "European Natural, color 7/0 (batch no .: 2010) of a length (L _max ) of 8 cm and a weight of 2.3 g were used. For preparation, the strands were washed with a 12% by weight aqueous solution of sodium lauryl ether sulfate (pH 6.5) for 30 minutes, rinsed with tap water for 5 minutes and then combed. The hair strands were dried overnight at 21 ° C and 50% relative humidity in a climatic chamber. This hair was placed in a facsimile of natural scalp, arranged in the smaller hair fiber bundles on a circular 90 ° bent plastic carrier in a row and fixed there with one end. In this way, the hairline is simulated. The other end of the fiber hangs free.

Before applying the test composition, the plastic support was clamped so that the plastic support defines a downward-pointing 90 ° arc (such as the "12 o'clock to 3 o'clock" clock of a wall clock, see Fig. 1), and the hair rests on the post The hair strand was taken with the black and white CCD camera with a 50mm lens and the camera was previously calibrated with a black disk.

The supported strand was moistened with water and a towel weighing 2 kg was pressed on for 30 seconds to dry. 10 mL (0.375 g) of compositions E and V were each applied to a supported strand of hair and spread with a brush in the hair. Thereafter, the supported strands were combed 20 times with a comb with the coarse toothing of a comb (Hercules Sägemann, hard-plastic comb with fine zincation).

Five strands of hair were prepared per composition and at the same time clamped as described above and dried for 7 minutes at 40 ° C. Then the tresses were brushed twice (this brush was static-charged with ionizer) and dried at 40 ° C for an additional 7 minutes. The supported strands were cooled at room temperature for 5 minutes and picked up as described above with a black and white CCD camera with a 50mm lens.

The images were all taken as two-dimensional black and white images (background: black, hair and wearer: white). A morphological filter was used at a theshold in the hairline zone of 210 to fill in black spots within the hair. The white area within the hairline zone of the filtered photographs of the supported tress before and after treatment was calculated and compared, respectively. The percentage change in area was calculated. The greater the change, the more voluminous the strand of hair.

Change in% = area (treated strand) - area (untreated strand). 100

 Surface (untreated strand)

Five strands of hair were measured per composition and the arithmetic mean was formed.

Tebelle: surfaces and their modification

The agent according to the invention provides a significantly improved volume increase.

Claims

P atent claims 1. Cosmetic composition contained in a cosmetically acceptable carrier a) at least one copolymer A from the monomers a1) n-Butyl methacrylate a2) Methacrylic acid a3) Ethyl acrylate and optionally other monomers, b) at least one propellant, c) water. 2. Cosmetic agent according to claim 1, characterized in that the copolymers A, based on the weight of the copolymer A, contain 60 to 80% by weight of n-butyl methacrylate, 10 to 30% by weight of methacrylic acid and 5 to 15% by weight of ethyl acrylate on 3. Cosmetic agent according to claim 1 or 2, characterized in that, based on its total weight, it contains the copolymer A in an amount of 0.5 to 10% by weight, preferably from 3.0 to 8.0% by weight, contains. 4. Cosmetic agent according to one of claims 1 to 3, characterized in that, based on the total weight of the cosmetic agent, the propellant is in amounts of 1 to 35% by weight, preferably 2 to 30% by weight, particularly preferably 3 up to 15% by weight. 5. Cosmetic agent according to one of claims 1 to 4, characterized in that dimethyl ether, propane, n-butane, iso-butane or mixtures of at least two of these compounds form the propellant according to the invention. 6. Cosmetic agent according to one of claims 1 to 5, characterized in that, based on its total weight, it has a water content of 30 to 97% by weight, particularly preferably 40 to 95% by weight, very particularly preferably 50 to 90% by weight .-% and in particular from 60 to 90% by weight. 7. Cosmetic agent according to one of claims 1 to 6, characterized in that it has a pH value (25 ° C) of 6.0 to 9.0, preferably from 6.5 to 8.0, particularly preferably from 6, 5 to 7.5. 8. Cosmetic agent according to one of claims 1 to 7, characterized in that the cosmetic agent contains at least one (C ₂ -C ₆ )-alkanolamine (in particular 2-amino-2-methylpropanol). 9. Cosmetic agent according to claim 8, characterized in that the proportion by weight of the (C ₂ -C ₆ )-alkanolamine (in particular the 2-amino-2-methylpropanol) in the total weight of the cosmetic agent is 0.1 to 4.0% by weight. , preferably 0.2 to 3.0% by weight and in particular 0.5 to 2.0% by weight. 10. Cosmetic agent according to one of claims 1 to 9, characterized in that it additionally contains at least one setting polymer other than copolymer A. 1 1. Cosmetic agent according to one of claims 1 to 10, characterized in that it additionally contains at least one surfactant (in particular selected from at least one compound from the group formed from anionic surfactants, nonionic surfactants and amphoteric surfactants). 12 Use of a cosmetic agent according to one of claims 1 to 1 1 to increase the volume of keratin-containing fibers, in particular human hair. 13. A method for increasing the volume of keratin fibers, in particular human hair, characterized in that a cosmetic agent according to one of claims 1 to 1 1 is applied to the keratin fibers in the form of a foam from an aerosol container. 14. Product, comprehensive i) a dispensing device in the form of a compressed gas container, and ii) a cosmetic product according to one of claims 1 to 1 1 located in the dispensing device. 15. Foam, characterized in that it is produced from a cosmetic agent according to one of claims 1 to 1 1.