EP1028700A1

EP1028700A1 - Propellant-gas-free pump sprays and pump mousses

Info

Publication number: EP1028700A1
Application number: EP98959839A
Authority: EP
Inventors: Volker Schehlmann; Peter Hössel
Original assignee: BASF SE
Current assignee: BASF SE
Priority date: 1997-11-14
Filing date: 1998-11-04
Publication date: 2000-08-23
Also published as: DE19750520A1; US6482394B1; WO1999025311A1; JP2001522869A

Abstract

The invention relates to hair treatment preparations in the form of pump sprays and pump mousses which are free of propellant gas, characterised in that they contain at least one cationic polymer and at least one anionic polymer.

Description

Propellant-free pump sprays and pump foams

description

The present invention relates to propellant-free pump sprays and propellant-free pump foams and propellant-free leave-on hair treatment compositions which contain anionic and cationic polymers. Mixtures and methods for treating keratin materials with polymers are known from US Pat. No. 4,240,450. The mixtures contain an anionic and a cationic polymer. Many of the known mixtures have problems in that the polymers in the mixtures precipitate out as solids. This requires a special application method. The known mixtures are primarily intended for so-called "rinse-off products", i.e. for agents that are washed out again after application, e.g. Shampoos. In column 51, only lotions are mentioned as agents that remain on the hair. Propellant-free agents that are sprayed onto the hair are not disclosed. A large variety of different compounds are mentioned as possible polymers.

DE 32 17 059 C2 describes pressurized agents for use on hair in the form of an aerosol foam, the term "aerosol foam" referring to a foam which is obtained with the aid of a conditioned agent which is under pressure. These agents contain a blowing agent. However, the use of blowing agents should be avoided for environmental reasons.

The object of the present invention is to provide hair treatment compositions which can also be sprayed on without propellant gas and which allow good spreadability on the hair and, even at high atmospheric humidity, a high degree of hairstyle stability and at the same time good combability and

Allow hair elasticity. At the same time, it should be ensured that a stable foam can be produced and that the agents are used as leave-on products, i.e. as agents which remain on the hair and are not washed out again after use, ensure a high flexural strength and low stickiness of the hair.

This object is achieved according to the invention by hair treatment agents in the form of propellant-free pump sprays and pump foams which contain at least one cationic and at least one anionic polymer. With the hair treatment compositions according to the invention in the form of pump sprays and pump foams, it is surprisingly achieved that even without the use of the undesired blowing agents, sprayable compositions are accessible which lead to stable but loose and easily distributable foams which have good wet and dry combability and Have hair fixation and which improve the flexural strength of the hair without the appearance of stickiness.

The hair treatment compositions according to the invention can also be in the form of propellant-free and polysiloxane-free leave-on hair treatment compositions which, when dissolved in a solvent, contain a copolymer with vinylpyrrolidone and a copolymer with methacrylic acid and ethyl acrylate units.

A variety of per se e.g. compounds known from DE 32 17 059 can be used.

Cationic polymers with a molecular weight (M _n ) of 500-1,000,000 which have primary, secondary, tertiary or / and quaternary amine groups are preferably used. Polymers with a molecular weight (M _n ) of 500 to 1,000,000 which contain sulfone groups, carboxylic acid groups or phosphoric acid groups are preferably used as anionic polymers.

In particular, cationic polymers from the following groups mentioned in DE 32 17 059 are used:

1) copolymers of vinylpyrrolidone-dialkylaminoalkyl methacrylate or acrylate, which are optionally quaternized,

2) derivatives of cellulose ether which comprise quaternary ammonium groups and quaternary cellulose derivatives,

3) cationic polysaccharides and cationic guar gum derivatives,

4) cationic polymers selected from the group of polymers which contain groups of the formula -A-Z-A-Z- (I), in which A represents a radical with two amine groups, preferably piperazinyl, and Z represents the symbol B or B ', where B and

B ', which are identical or different, represents a linear or branched alkylene radical which is optionally substituted by hydroxyl groups and which can furthermore comprise oxygen atoms, nitrogen atoms, sulfur atoms, one to three aromatic and / or heterocyclic rings; Polymers of the formula -A-Zi-A-Zi- (II), in which A has the same meaning as indicated above, and Zi denotes the symbol Bi or BZ and represents B'i at least once, where Bi is a linear or branched alkylene - or hydroxyalkylene radical, B'i is a linear or branched alkyl radical which is optionally substituted by one or more hydroxyl radicals and is interrupted by one or more nitrogen atoms, the nitrogen atom being substituted by an alkyl chain which may be substituted by an oxygen atom is interrupted and optionally comprises one or more hydroxyl groups;

Alkylation products with alkyl or benzyl halides, lower alkyl tosylate or mesylate and oxidation products of the polymers of the formulas (I) and (II),

5) polyamino-polyamides,

6) crosslinked polyamino-polyamides from the following group

a) Crosslinked, optionally alkylated polyamino-polyamides obtained by crosslinking a polyamino-polyamide, prepared by polycondensation of an acidic compound with a polyamine, with a crosslinking agent from the group of the epihalohydrins, diepoxides, dianhydrides, unsaturated anhydrides, bis-unsaturated derivatives, where the crosslinking agent is used in amounts between 0.025 and 0.35 mol per amine group of the polyamino amide;

b) crosslinked polyamino polyamides obtained by crosslinking a polyamino polyamide as defined above with a crosslinking agent selected from the following group:

I bis-halohydrins, bis-azetidinium, bis-haloacyldiamines, alkyl-bis-halides,

II oligomers obtained by reacting a compound of group I or epihalohydrins, diepoxides, bis-unsaturated derivatives, with one of these compounds with reactive, bifunctional compound,

III Quaternization product of a Group I compound and Group II oligomers comprising tertiary amine groups, all or part of which are alkylatable with an alkylating agent, the crosslinking being effected with the aid of 0.025 to 0.35 mol% of crosslinking agent per amine group of the polyaminoamide,

c) polyamino-polyamide derivatives obtained by condensation of a polyalkylene-polyamine with a polycarboxylic acid and subsequent alkylation by bifunctional agents, of the type of the copolymers adipic acid-dialkylaminohydroxy-alkyl-dialkylenetriamine,

7) Polymers obtainable by (i) radical initiated copolymerization of monomer mixtures

(a) 1 to 99.99% by weight, preferably 2 to 70% by weight, particularly preferably 2 to 50% by weight of a cationic monomer or quaternizable monomer

(b) 0 to 98.99% by weight, preferably 22 to 97.98% by weight, particularly preferably 45 to 97.95% by weight of a water-soluble monomer,

(c) 0 to 50% by weight, preferably 0 to 40% by weight, particularly preferably 0 to 30% by weight of a further free-radically copolymerizable monomer and

(d) 0.01 to 10% by weight, preferably 0.02 to 8% by weight, particularly preferably 0.05 to 5% by weight of a bi- or polyfunctional free-radically copolymerizable monomer,

and (ii) subsequent quaternization of the polymer if an unquaternized monomer is used as monomer (a).

Suitable monomers (a) are the N-vinylimidazole derivatives of the general formula (I), in which R ¹ to R ^{3 are} hydrogen, -CC ₄ -alkyl or phenyl.

Diallyamines of the general formula (II) are furthermore suitable, in which R 1 represents C ₁ -C 4 -alkyl.

Also suitable are N, N-dialkylaminoalkyl acrylates and methacrylates and N, N-dialkylaminoalkyl acrylates and methacrylamides of the general formula (III),

where R ⁵ , R ⁶ independently represent a hydrogen atom or a methyl radical, R? for an alkylene radical with 1 to 24 C-atoms, optionally substituted by alkyl radicals and R ⁸ , R ⁹ for -CC ₂₄ alkyl radicals. Z stands for a nitrogen atom together with x = 1 or for an oxygen atom together with x = 0.

The quaternization of the monomer or a polymer with one of the quaternizing agents mentioned can be carried out by generally known methods.

Preferred quaternizing agents are: methyl chloride, dimethyl sulfate or diethyl sulfate.

Preferred examples of monomers (a) are 3-methyl-1-vinyl imidazolium chloride and methosulfate, dimethyldiallylammonium chloride and N, N-dimethylaminoethyl methacrylate and N- [3- (dimethylamino) propyl imethacrylamide, which are substituted by methyl chloride, dimethyl sulfate or Diethyl sulfate were quaternized.

Suitable water-soluble monomers (b) are N-vinyl lactams, for example N-vinyl piperidone, N-vinyl pyrrolidone and N-vinyl caprolactam, N-vinyl acetamide, N-methyl-N-vinyl acetamide, acrylamide, methacrylamide, N, N-dimethylacrylamide, N- Methylol methacrylate, N-vinyloxazolidone, N-vinyltriazole, hydroxyalkyl (meth) acrylates, for example hydroxyethyl (meth) acrylate and hydroxypropyl (meth) acrylates, or alkylethylene glycol kol (meth) acrylates with 1 to 50 ethylene glycol units in the molecule.

Suitable monomers (c) are Ci to C ₂ 4-, in particular Ci to Cio-alkyl esters of (meth) acrylic acid, for example methyl (meth) acrylate, ethyl (meth) acrylate, tert-butyl (meth) acrylate, isobutyl (meth) acrylate, n-butyl (meth) crylate and acrylamides such as N-tert-butylacrylamide or N-tert-octylacrylamide. Carboxylic acid vinyl esters, for example vinyl acetate or vinyl propionate, are also suitable.

Monomers (d) which have a crosslinking function are compounds with at least 2 ethylenically unsaturated, non-conjugated double bonds in the molecule.

Suitable crosslinkers are, for example, acrylic esters, methacrylic esters, allyl ethers or vinyl ethers of at least dihydric alcohols. The OH groups of the underlying alcohols can be wholly or partially etherified or esterified; however, the crosslinkers contain at least two ethylenically unsaturated groups.

Other suitable crosslinkers are the vinyl esters or the esters of monohydric, unsaturated alcohols with ethylenically unsaturated C ₃ to C ₆ carboxylic acids, for example acrylic acid, methacrylic acid, itaconic acid, maleic acid or fumaric acid.

Other suitable crosslinkers are esters of unsaturated carboxylic acids with the polyhydric alcohols described above, for example oleic acid, crotonic acid, cinnamic acid or 10-undecenoic acid.

The monomers (a) to (d) can each be used individually or in a mixture with other monomers from the same group.

8) Polymers obtained by reacting a polyalkylene polyamine which comprises two primary amine groups and at least one secondary amine group with a dicarboxylic acid from the group consisting of diglycolic acid and saturated aliphatic dicarboxylic acids having 3 to 8 carbon atoms, the molar ratio between polyalkylene polyamine and dicarboxylic acid is between 0.8: 1 and 1.4: 1; the polyamide formed is reacted with epichlorohydrin in a molar ratio of epichlorohydrin to secondary amine group of the polyamide of between 0.5: 1 and 1.8: 1, ) Copolymers which comprise units corresponding to the formula (III) or (III ') as main chain constituent

(III)

(III ') wherein 1 and t are 0 or 1 and 1 + 1 = 1, R "is hydrogen or methyl, R and R' independently of one another are an alkyl group having 1 to 22 carbon atoms, a hydroxyalkyl group, wherein the alkyl group is preferably 1 to Comprises 5 carbon atoms, represents a lower amidoalkyl group and wherein R and R 'together with the nitrogen atom to which they are attached can represent heterocyclic groups such as piperidinyl or morpholinyl, and the copolymers which units of the formula (III) or III' ) and preferably comprise units derived from acrylamide or diacetone acrylamide, Y® represents an anion, such as bromide, chloride, acetate, borate, citrate, tartrate, bislufate, bisulfite, sulfate, phosphate,

10) Quaternary polyammonium compounds of the formula

wherein R 1 and R ₂ , R ₃ and R ₄ , which are the same or different, represent aliphatic, alicyclic or arylaliphatic radicals which contain a maximum of 20 carbon atoms, or low-hydroxyaliphatic radicals, or Ri and R ₂ and R ₃ and R together or separately, with the nitrogen atom to which they are attached, form heterocyclic rings which optionally contain a second heteroatom other than nitrogen, or R 1, R ₂ , R ₃ and R represent the following group

CH ₂ CH

^ R ' ₄

where R ' _{3 is} hydrogen or lower alkoxyl, R' _{4 has} the following meanings:

0 0

R 'DC NH R' ₇ ^* D

wherein R ' _{5 represents} lower alkyl, R' _{6 represents} hydrogen or lower alkyl, R ' _{7 represents} alkylene, D represents a quaternary ammonium group; A and B can represent polymethylene groups which contain 2 to 20 carbon atoms and which are linear or branched, saturated or unsaturated and, incorporated into the main chain, can contain one or more aromatic rings, such as the following group:

one or more groups -CH ₂ -Y-CH -, where Y has the following meanings: 0, S, SO, S0 ₂ , R's R '9 OH

0 0 NH C NH - CN or CO R ' _S

where X ^® ι produces an amine derived from an inorganic or organic acid, R is hydrogen or lower alkyl, R ' _{9 is} lower alkyl, or A and Ai and R ₃ together with the two atoms to which they are attached form a piperazine ring; if, in addition, A represents a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, then B can also mean the following group: - (CH ₂ ) _n -CO-D-OC- (CH ₂ -n, where D has the following meaning Has:

a) a glycol radical of the formula -O-I-O-, in which Z represents a linear or branched hydrocarbon radical or a group according to the following formulas:

CH ₂ CH ₂ 004-i - CCHH ₂₂ (CH ₂ or

H-CH ₂ CH ₂ 0 -f-CH ₂ CH

CH ₃ ^Y CH ₃ wherein x and y represent an integer from 1 to 4, which represents a defined and only degree of polymerization, or any number from 1 to 4, which represents an average degree of polymerization;

b) a bis-secondary diamine residue, such as a piperazine derivative, c) a bis-primary diamine residue of the formula: -NH-Y-NH-, wherein Y is a linear or branched hydrocarbon residue or the divalent residue -CH ₂ -CH ₂ -SS-CH ₂ -CH - represents d) a group of the formula -NH-CO-NH- derived from urea;

n is chosen so that the molecular mass is generally between 1,000 and 100,000,

X- represents an anion,

11) Homopolymers or copolymers which are derived from acrylic acid or methacrylic acid and contain at least one group of the following formulas:

Ri Rl Ri 5 CH ₂ C, CH ₂ Cc - / "CH ₂ - - c -

wherein Ri represents hydrogen or CH ₃ ; A means a linear or branched alkyl group with 1 to 6 carbon atoms or a hydroxyalkyl group with 1 to 4 carbon atoms; R ₂ , R ₃ , R, which are identical or different, one

Is an alkyl group having 1 to 18 carbon atoms or a benzyl group; R ₅ , R _{6 represent} hydrogen, alkyl having 1 to 6 carbon atoms; X- represents a methosulfate anion or halide,

35

12) quaternary copolymers of vinylpyrrolidone-vinylimidazole,

13) polyalkyleneimines,

40 14) polymers which contain vinylpyridine or vinylpyridinium groups in the chain,

15) condensates of polyamines and epichlorohydrin,

45 16) quaternary polyurea compounds (polyureylenes), 17) chitin derivatives,

18) cationic silicone polymers (polymeres silicones).

As that the anionic polymer, in particular polymers are selected from the following group:

Polymers comprising carboxyl groups derived from unsaturated mono- or dicarboxylic acids of the following formula:

^Rl - ^. ^ (A) _n COOH

C = C

R2 R ₃

wherein n represents an integer from 0 to 10, A represents a methylene group which is optionally bonded to the carbon atom of the unsaturated group or an adjacent methylene group, if n is greater than 1, via a hetero atom, such as oxygen, sulfur, Ri Represents hydrogen atom, a phenyl or benzyl group, R represents a hydrogen atom, a lower alkyl group or carboxyl, R _{3 represents} a hydrogen atom, a lower alkyl group, a group -CH ₂ -COOH, phenyl or benzyl,

Polymers containing groups derived from sulfonic acid, such as vinyl sulfone, styrene sulfone, lignosulfone and naphthalene sulfone (acid) groups.

Anionic polymers from the following groups are particularly preferred:

A) homo- or copolymers of acrylic acid or methacrylic acid or their salts, copolymers of acrylic acid and acrylamide and their salts; Sodium salts of polyhydroxycarboxylic acids,

B) copolymers of acrylic acid or methacrylic acid with a monoethylene monomer, which is optionally grafted with a polyalkylene glycol and is optionally branched; Copolymers of the type which in their chain comprise an optionally N-alkylated and / or hydroxyalkylated acrylamide group,

C) Copolymers which are derived from crotonic acid and contain in their chain vinyl acetate or vinyl propionate groups and, if appropriate, other monomers, such as allyl or methallyl esters, vinyl ethers or vinyl esters of a linear or branched saturated carboxylic acid with a long carbon Hydrogen ette, where these polymers can optionally be grafted or crosslinked,

D) Polymers derived from maleic, fumaric and itaconic acid or anhydride with vinyl esters, vinyl ethers, vinyl halides, phenylcinyl derivatives, acrylic acid and their esters; Copolymers of maleic acid, citraconic acid, itaconic acid anhydrides and an allyl or methallyl ester of an olefin, acrylic or methacrylic ester, acrylic or methacrylic acid or vinylpyrrolidone in their chain, the

Anhydride groups can be monoesterified or monoamidated,

E) polyacrylamides comprising carboxylate groups.

The hair treatment compositions according to the invention are soluble in water, alcohols or water / alcohol mixtures and are therefore easy to apply to the hair. In particular, it has been shown that the solubility of the polymer mixture in alcohols is good despite the anionic or cationic character of the individual polymers and that no precipitates occur at the concentrations of the polymers customary for these agents. The agents are therefore well suited as VOC 55 or VOC 80 compositions, i.e. as mixtures containing alcohols in certain quantities (55 or 80%).

Particularly suitable alcohols are monoalcohols such as

-C-C ₆ ~ alkanols, especially ethanol or isopropanol, polyalcohol such as alkylene glycols, especially ethylene glycol and glycol ether and esters with hydroxyl groups.

The pump sprays and pump foams according to the invention generally contain neutralizing agents, such as e.g. 2-amino-2-methyl-l-propanol or triethanolamine, e.g. in an amount of 0.1 to 1% by weight.

Other auxiliaries can also be added to the agents according to the invention, e.g. Dyes, preservatives, emulsifiers, perfumes, electrolytes, viscosity regulators, foam stabilizers and other common cosmetic raw materials.

The agents according to the invention can also contain further polymers, e.g. to improve the film-forming properties.

As preferred anionic polymers, copolymers of unsaturated mono- or dicarboxylic acids with -CC alkyl esters or methacrylic or acrylic acid, in particular copolymers with methacrylic acid and ethyl acrylate units, are used. Copolymers with vinyl pyrrolidone units are used as preferred cationic polymers, in particular copolymers with vinyl caprolactam and vinyl imidazolium methyl sulfate (Polyquaternium 46).

The total of the polymers are present in the mixtures according to the invention in a concentration of 0.1 to 12% by weight, the cationic in a concentration of 0.05 to 5% by weight and the anionic in a concentration of 0.05 to 7% by weight. .

The invention further relates to propellant-free and polysiloxane-free leave-on hair treatment compositions which, in solution in a solvent, contain a copolymer with vinylpyrrolidone units and a copolymer with methacrylic acid and ethyl acrylate units in combination. The statements made above regarding these solvents, stabilizers, auxiliaries and concentrations apply accordingly to these hair treatment agents.

The leave-on hair treatment agents, i.e. Agents that remain in the hair after use are preferably in the form of lotions or gels. For these agents, the strength while avoiding the stickiness is of particular importance.

The pH values of the hair treatment compositions according to the invention are preferably between 5 and 8, in particular between 5 and 7.

The foams produced with the pump foams according to the invention are distinguished by the fact that they are stable but have a consistency that is not too firm, i.e. are soft when applied to the hair and are easy to distribute. This property is of particular importance for consumer acceptance.

Examples

Table 1: Examples of pump foam formulations ¹ -

Table 1 (continued)

¹ 'Pump system: Aispray, model F2 Finger Pump Foamer> Cocamidopropyl Betaine

² > WS: Active ingredient content ⁵ 'Hydrogenated castor oil

³⁾ Ci ₆ -i ₈ fatty alcohol ethoxylate with 25 parts EO

Chemical structure of the polymers:

Luvimer 100 P or Luvimer 36 D copolymer of methacrylic acid (MAS) / ethyl acrylate (EA / t-butyl acrylate (t-BA) 23: 10: 67

Luvimer MAE 30 D

Copolymer from MAS / EA approx. 50:50

Luviquat Hold (Polyquaternium-46)

Copolymer of vinyl caprolactam / vinyl pyrrolidone

(VP) / 3-methyl-l-vinylimidazolium methyl sulfate (QVI) 50:40:10

Luviquat MS 370 (Polyquaternium-44) copolymer from VP / QVI 70:30

Luviquat FC 370 (Polyquaternium-16)

Copolymer of VP / 3-methyl-l-vinylimidazolium chloride 70:30

Luviquat PQ 11 (Polyquaternium-11)

Copolymer of VP / 2: 1 dirnethylaminoethyl methyl acrylate quaternized with dimethyl sulfate

Ucare Polymer JR 400 (Polyquaternium-10)

Cationically modified hydroxyethyl cellulose, produced by reaction with ethylene oxide and glycidyltrimethylammonium chloride

Celquat HS 100 (Polyquaternium-4) Cationically modified hydroxyethyl cellulose by reaction with diallyldimethylammonium chloride

Jaguar C 14 S.

Cationically modified guar gum

Cabopol 940 (Carbomer) Cross-linked polyacrylic acid Table 2: Examples of pump foams with application tests

Description of the test methods:

Stability of the foam:

The stability of the foam was assessed using an amount the size of a tennis ball. In the case of the pump foams (Examples 8 to 10), about eight strokes were necessary (pump systems from Airspray, model F2 Finger Pump Foamer).

The following grading scale was used for the assessment:

very good: the foam remains unchanged for more than 2 min after application to the hand,

good: the foam remains unchanged for more than 1 min after application to the hand,

bad: the foam breaks immediately.

A) Flexural strength, curl retention and stickiness

Flexural strength

Pretreatment of the strands of hair

Strands of hair with a length of 20 cm and a weight of 2.2 to 2.6 g were soaked in the above formulation, lightly pressed on filter paper and overnight at 20 ° C and 65% rel. Moisture dried.

The strand of hair was placed symmetrically on two cylindrical rollers (diameter 6 mm, distance between the two rollers 9 cm). In the middle of the two layers, a rising pressure was exerted on the strand with a tension-compression testing machine. The maximum force before kinking the treated hair strand is given in Centi-Newton (cN). It is a measure of the setting effect of polymers on hair. each

Polymer solution was tested on 10 different strands of hair. Determination of stickiness

The solutions to be tested (see table) were applied to a glass plate using a doctor blade with a gap width of 120 μm. The wet film was stored in a climatic cabinet at 75% relative humidity and 20 ° C. overnight.

A plastic-carbon tape (Pelikan 2060, 50 mm wide) was placed on the glass plate coated with the solutions. A rubber stamp of Shore A hardness 60 + 5 was loaded with 250 N for 10 s. The test was carried out in the climate chamber at 75% rel. Moisture carried out.

To the extent that the solution surface is sticky, the printing ink of the carbon tape adheres to the polymer film (assessment: grades from 0 = not sticky to 5 = very sticky,> 5: polymer film is torn off the glass plate).

Curl retention

For the determination of curl retention, strands of hair weighing 2 g and 15.5 cm in length and made of medium-brown European human hair were used.

Method of determination

The tresses of hair were kept in an ethanol / water solution (1: 1) for 1 hour, rinsed with water and then washed twice with an aqueous Texapon NSO solution (approx. 0.5% WS). The locks of hair were then rinsed out with water at about 40 ° C. until no more soap was visible, combed and kept in water.

The damp hair was then immersed three times in the solutions described above (see above), wiped off in between with the fingers and squeezed out between filter paper. The hair was then wrapped around a Teflon rod (12 mm in diameter) and fastened with filter paper and a rubber ring. The tresses of hair were then dried in a warming cabinet at 70 ° C. for 90 minutes. After cooling to room temperature, the curls were stripped off on a specially made plexiglass frame and the curl length (L0) was measured on the attached scale.

10 hair tresses were used to determine a curl retention value. The curls were in a climatic chamber at 20 ° C and 75% rel. Humidity. Their lengths (Lt) were measured for 5 hours. The curl retention is calculated as follows:

Curl retention in% = ^* 100

L-LO

L = length of hair (15.5 cm)

L0 = length of lock of hair after drying

Lt = length of lock of hair after climatic treatment

The mean value from the 10 individual measurements after 5 h at 20 ° C. and 75% rel. Moisture specified.

Half-side test on the model head

Spreadability of the foam on the model heads

The spreadability of the foam on model heads with human hair was assessed by at least three people. The following grading scale was used:

very good: very good distributability; the foam is soft and breaks as soon as it comes into contact with the hair,

moderate: the foam is very firm, remains stable even after touching the hair and is therefore relatively difficult to incorporate.

The half-side tests were carried out in the climatic room at 65% relative humidity and 20 ° C.

Model heads from the company HTS with brown Central European human hair are used. The hair length was approx. 25 cm.

Before the treatment with the hair foams, the heads were washed with a solution of 14% sodium lauryl ether sulfate in water and rinsed thoroughly with water until no more foaming occurred. The excess water was removed with a towel and the wet hair was combed thoroughly.

Half of each wet hair was treated with the formulation from Example 8. The other halves were treated with the formulations from Examples 9 and 10 (comparative examples. A tennis ball-sized amount of the foam was applied and evenly distributed.

Wet combability

The wet combability of at least three people was assessed subjectively using separate combs. The grading scale consisted of three ratings: very good, good and bad. Very good and good means that the hair is much easier to comb when wet than hair without treatment with the respective hair foams.

Consolidation

After drying the hair overnight, the firming of the hair by pressing the hair with the fingers was assessed by three people. The grading scale consists of the three ratings very good, good and moderate.

Dry combability

The hair is then combed out and the dry combability is determined (grading scale and assessment see wet combability).

Handle of hair

The grip of the hair was also determined by at least three people. The grading scale ranges from very good (the hair feels smooth and supple), good (the hair feels similar to dry and untreated hair) and bad (the hair feels uncomfortably rough and dull).

Table 3: Examples of pump sprays

Table 4: Examples of hair setting gels

³⁾ the setting gel can be sprayed with the pump spray

Valve designation GMPS 38/200 + V04.1440 + V20.5 from Coster

Claims

claims

1. Hair treatment agent in the form of propellant-free pump sprays and pump foams, characterized in that they contain at least one cationic and at least one anionic polymer.

2. Pump sprays and pump foams according to claim 1, characterized in that the cationic polymer is a copolymer with

Is vinyl pyrrolidone units.

3. Pump sprays and pump foams according to claim 1, characterized in that the anionic polymer is a copolymer with methacrylic acid and ethyl acrylate units.

4. Pump sprays and pump foams according to claim 1, characterized in that they contain water, alcohol or a water / alcohol mixture as a solvent.

5. Propellant-free and polysiloxane-free leave-on hair treatment compositions which, in solution in a solvent, contain a copolymer with vinylpyrrolidone units and a copolymer with methacrylic acid and ethyl acrylate units.

6. Leave-on hair treatment composition according to claim 5, characterized in that it contains water, alcohol or a water / alcohol mixture as a solvent.

7. Leave-on hair treatment composition according to claim 5, characterized in that the hair treatment compositions are lotions or gels.