DE102015225968A1 - A styling mousse for keratin-containing fibers containing at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer - Google Patents

Abstract

The present invention relates to cosmetic compositions for the temporary deformation of keratinic fibers, in particular human hair, which are in the form of a mousse and contain an aqueous dispersion of at least one diene and at least one dienophile-containing polyurethane polymer. In addition, the present invention relates to the use of these cosmetic compositions and a method for preferably remodellable temporary deformation of keratinic fibers using these agents.

Description

The application relates to the technical field of temporary transformation keratinhaltiger fibers, especially human hair. The application relates to cosmetic compositions containing at least one aqueous dispersion of at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and at least one cationic compound. In addition, the subject of the present application, a method for the temporary deformation of keratinous fibers using the compositions of the invention and the use of these agents to improve the long-term content and hairstyle resistance and to achieve a remodeling hairstyle.

An attractive-looking hairstyle is now generally considered an indispensable part of a well-groomed appearance. Due to current fashion trends, hairstyles are always considered chic, which in many types of hair can only be built up using firming agents or maintained for a longer period of time up to several days. Therefore, hair treatment agents which serve a permanent or temporary shaping of the hair play an important role. While the chemical structure of the keratin-containing fiber is modified by reduction and oxidation during permanent forming, such modifications of the chemical structure do not take place during the temporary forming. Corresponding temporary deformation agents usually contain synthetic polymers and / or waxes as the setting agent.

The most important property of a temporary deformation agent for keratinous fibers, hereinafter also referred to as a styling agent, is that of treating the treated fibers in the reshaped form - i. a form imprinted on the fibers - to give as strong a hold as possible. If the keratin fibers are human hair, it is also called a strong hairstyle or a high degree of hold of the styling agent. The hairstyle hold is essentially determined by the type and amount of setting active ingredients used, but also an influence of the other components of the styling agent and the application form may be given.

In addition to a high degree of hold, styling agents must meet a whole range of other requirements. These may be broad in properties on the hair, properties of the particular formulation, e.g. of the sprayed aerosol or non-aerosol, and 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 for all hair types and mild to hair and skin. In addition, a remodellable styling should be possible without having to apply styling agents on the hair again.

In order to meet the different requirements, the prior art has developed a large number of synthetic polymers as setting active substances which are used in styling agents. The polymers can be subdivided into cationic, anionic, nonionic and amphoteric setting polymers. Ideally, when applied to hair, the polymers give a polymer film which, on the one hand, gives the hairstyle a strong hold but, on the other hand, is sufficiently flexible not to break under stress. If the polymer film is too brittle, it leads to the formation of so-called film splints or residues, which detach during the movement of the hair and give the impression that the user of the corresponding styling agent would have dandruff.

Although the polymer films obtainable with the synthetic polymers and polymer combinations known in the prior art have a satisfactory hold, this achieved hairstyle hold is greatly reduced in a moist environment. However, this deteriorated hold in a humid environment does not meet the consumer need for a consistently high long-term maintenance regardless of the external weather conditions. Furthermore, with these polymers it is usually not possible to remodel the hairstyle without reapplying the polymers. There is therefore a need to improve the moisture resistance and remodelability of polymer films, without, however, adversely affecting the other properties of cosmetic agents mentioned above, in particular styling agents

It was therefore an object of the present invention to provide novel polymers which, in addition to high long-term stability, high flexibility and low tackiness, also have outstanding moisture resistance-in particular perspiration and water resistance. In addition, a remodeling of the hairstyle should be possible with these polymers, i. a durable shaping of the hairstyle without reapplication of the polymer. Furthermore, these polymers should enable the formulation of storage-stable cosmetic agents for the temporary deformation of keratinous fibers.

It has now surprisingly been found that the use of an aqueous dispersion of at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer leads to styling agents which are prepared by crosslinking by means of a Diels-Alder reaction between the diene and the dienophile-containing polyurethane polymer during the Drying of the polymer film have a high grip and good flexibility with excellent moisture resistance. The low stickiness of the cosmetic products required for a pleasant product feel was not adversely affected by the aqueous dispersion. In addition, a remodelable deformation can be achieved with these styling agents, ie a durable change of the hairstyle without re-application of the styling agent is possible. Furthermore, storage-stable cosmetic agents can be formulated using this dispersion.

• a) mindestens eine wässrigen Dispersion, umfassend mindestens ein Dien-haltiges Polyurethanpolymer und mindestens ein Dienophil-haltiges Polyurethanpolymer und
• b) mindestens eine kationische Verbindung, ausgewählt aus der Gruppe von kationischen Tensiden, kationischen Polymeren sowie deren Mischungen und
• c) 0,1 bis 10 Gew.-% mindestens eines Treibmittels.

A first subject of the present invention is thus a cosmetic composition for the temporary deformation of keratinic fibers, contained in a cosmetically acceptable carrier and based on its total weight.

• a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and
• b) at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof and
• c) 0.1 to 10 wt .-% of at least one blowing agent.

By using an aqueous dispersion which contains a combination of at least one diene-containing and at least dienophile-containing polyurethane polymer, improved moisture resistance of the hairstyles achieved with the cosmetic agents is achieved. The agents according to the invention therefore ensure a permanent and consistently high hairstyle hold even with changing external environmental influences. In addition, an increased stiffness of the hairstyle is obtained. The improved moisture resistance and rigidity is achieved in particular by crosslinking by Diels-Alder reactions between the diene and dienophile-containing polyurethane polymers during the drying of the polymer film. In addition, a remodeling of the deformation achieved by heating, shaping and subsequent cooling without re-applying the cosmetic agent is possible. Furthermore, the use of the abovementioned dispersion does not lead to a negative influence on the further product properties, such as, for example, the stickiness of the products. In addition, this dispersion also has no negative effects on the viscosity and the storage stability of the cosmetic products.

In principle, all animal hair, e.g. Wool, horsehair, angora hair, furs, feathers and products or textiles made from them. Preferably, however, the keratinic fibers are human hairs.

The term "polyurethane polymer" in the context of the present invention means polymers in which the respective monomer units are linked by urethane groups of the general formula -NH-CO-O-. Polyurethane polymers used according to the invention are preferably obtained by polyaddition from dihydric or higher alcohols with diisocyanates and / or triisocyanates.

Furthermore, the term "diene-containing polyurethane polymers" is to be understood as meaning polyurethane polymers which comprise at least one diene covalently bonded to the polyurethane polymer. The covalent bonding of the diene to the polyurethane polymer can be effected by reaction of at least one nucleophilic group of the at least one diene with at least one free isocyanate group. Nucleophilic groups are, for example, hydroxy groups. In the context of the invention, a diene is understood as meaning compounds which contain at least two carbon-carbon double bonds which are separated from one another by a carbon-carbon single bond and also electron-donating groups.

In addition, the term "dienophile-containing polyurethane polymers" according to the invention to understand polyurethane polymers containing at least one covalently bonded to the polyurethane polymer dienophile. The covalent bonding of the dienophile to the polyurethane polymer can be effected by reaction of at least one nucleophilic group of the at least one dienophile with at least one free isocyanate group. Nucleophilic groups are, for example, hydroxy groups. A dienophile is understood according to the invention to mean compounds which contain at least one carbon-carbon double bond and at least one electron-withdrawing group, for example a carbonyl group.

In the context of the present invention, the term "aqueous dispersions" is understood to mean multiphase compositions which comprise a continuously aqueous phase and one in this aqueous phase finely divided phase of a mixture of a diene-containing polyurethane polymer and a dienophile-containing polyurethane polymer.

In addition, the term "fatty acid" as used in the context of the present invention means aliphatic carboxylic acids which have unbranched or branched carbon radicals having 4 to 40 carbon atoms. The fatty acids used in the present invention may be both naturally occurring and synthetically produced fatty acids. Furthermore, the fatty acids may be monounsaturated or polyunsaturated.

Finally, the term "fatty alcohol" in the context of the present invention means aliphatic, monohydric, primary alcohols which have unbranched or branched hydrocarbon radicals having from 4 to 40 carbon atoms. The fatty alcohols used in the invention may also be monounsaturated or polyunsaturated.

The statement wt .-% relates in the present case, unless otherwise stated, to the total weight of the blowing agent-containing cosmetic compositions according to the invention.

The cosmetic compositions according to the invention contain the ingredients in a cosmetically acceptable carrier. According to the invention, the cosmetic carrier is preferably aqueous, alcoholic or aqueous-alcoholic.

For the purposes of the invention, an aqueous carrier contains at least 10% by weight, in particular at least 40% by weight, of water, based on the total weight of the cosmetic product. Very particularly preferred cosmetic agents have, based on their total weight, a water content of from 50 to 95% by weight, preferably from 60 to 90% by weight, in particular from 65 to 85% by weight.

In the context of the present invention, aqueous-alcoholic carriers are water-containing compositions comprising a C ₁ -C ₄ -alcohol in a total amount of from 3 to 90% by weight, based on the total weight of the cosmetic agent, in particular ethanol or isopropanol understand.

It may be preferred according to the invention if at least one (C ₂ to C ₆ ) -alkyl alcohol having at least one hydroxyl group is used as additional solvent of the agent according to the invention. In the context of a particularly preferred embodiment of the agent according to the invention, the agent contains as additional solvent at least one alcohol which has 2 to 6 carbon atoms and 1 to 3 hydroxyl groups. Preferably, the solvent other than water is selected from at least one compound of the group which is formed from ethanol, ethylene glycol, isopropanol, 1,2-propylene glycol, 1,3-propylene glycol, glycerol, n-butanol, 1,3-butylene glycol. A most preferred solvent is ethanol.

As the first essential constituent a), the cosmetic agent according to the invention comprises at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer.

worin
R₁ bis R₃, jeweils unabhängig voneinander, für eine lineare oder verzweigte C₁-C₄-Alkylgruppe, insbesondere eine lineare C₁-C₂-Alkylgruppe, stehen, a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 6, insbesondere von 1 bis 4, stehen und X⁺ für ein physiologisch verträgliches Kation, insbesondere Natrium, steht,
enthält. Unter Polyurethanverbindungen sind Verbindungen zu verstehen, welche mindestens zwei Urethangruppen -NH-C(O)- aufweisen. Weiterhin sind unter Polyetherverbindungen Verbindungen zu verstehen, welche mindestens zwei Ethergruppen aufweisen. Ionische Polyetherverbindungen enthalten mindestens eine Gruppe mit einer kationischen und/oder anionischen Ladung, bevorzugt einer anionischen Ladung, insbesondere mindestens einer Sulfonatgruppe -SO₃ ^–. Die Polyurethanpolymere können beispielsweise durch Reaktion von Polyisocyanaten (Verbindung mit mindestens zwei Isocyanatgruppen) mit Polyolen (Verbindung mit mindestens zwei freien OH-Gruppen), Diolen und Aminen hergestellt werden. Es ist jedoch im Rahmen der vorliegenden Erfindung bevorzugt, wenn zunächst ein NCO-Gruppen terminiertes Polyurethanprepolymer durch Reaktion eines Überschusses eines Diisocyanats, beispielsweise eines der Formel (I) entsprechenden Diisocyanats, mit einem der Formel (III) entsprechenden ionischen Polyetherpolyol hergestellt wird. Dieses Polyurethanprepolymer wird anschließend mit einem der Formel (II) entsprechenden Dienophil Verbindung umgesetzt, wobei die freie OH-Gruppe des Diens mit der mindestens einen freien NCO-Gruppe des Polyurethanpolymers unter Ausbildung einer kovalenten Bindung reagiert. Durch die Funktionalisierung des Polyurethanpolymers mit Dienen und deren Kombination mit Dienophil-haltigen Polyurethanpolymeren kann aufgrund der Diels-Alder Reaktionen zwischen dem Dien und dem Dienophil während der Trocknung ein stabiler und haltbarer Polymerfilm auf den Haaren erzielt werden, welcher eine hohe Feuchtigkeitsbeständigkeit aufweist. Diese Diels-Alder Reaktion kann durch Anwendung von erhöhten Temperaturen, beispielsweise 70 bis 100 °C, rückgängig gemacht werden, so dass eine Remodellierbarkeit der Frisur nach Erhitzen des gebildeten Polymerfilms möglich ist, wobei weder der Halt noch die Feuchtebeständigkeit durch die Remodellierung negativ beeinflusst werden. The diene-containing polyurethane polymer used according to the invention preferably contains certain structural units. Preferred embodiments of the cosmetic compositions according to the invention are therefore characterized in that the at least one diene-containing polyurethane polymer comprises at least one polyurethane compound of the formula (I) and at least one diene compound of the formula (II) and at least one ionic polyether compound of the formula (III)

wherein
R ₁ to R ₃ , each independently of one another, represent a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a, and b, in each case independently of one another, represent integers from 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium,
contains. Polyurethane compounds are compounds which have at least two urethane groups -NH-C (O) -. Furthermore, polyether compounds are compounds which have at least two ether groups. Ionic polyether compounds contain at least one group having a cationic and / or anionic charge, preferably an anionic charge, in particular at least one sulfonate group -SO ₃ ^- . The polyurethane polymers can be prepared, for example, by reaction of polyisocyanates (compound having at least two isocyanate groups) with polyols (compound having at least two free OH groups), diols and amines. However, in the context of the present invention, preference is given to first preparing an NCO-terminated polyurethane prepolymer by reacting an excess of a diisocyanate, for example a diisocyanate corresponding to the formula (I), with an ionic polyether polyol corresponding to the formula (III). This polyurethane prepolymer is then reacted with a dienophile compound corresponding to the formula (II), the free OH group of the diene reacting with the at least one free NCO group of the polyurethane polymer to form a covalent bond. By functionalizing the polyurethane polymer with dienes and combining them with dienophile-containing polyurethane polymers, a stable and durable polymer film can be achieved on the hair which has high moisture resistance due to the Diels-Alder reactions between the diene and the dienophile during drying. This Diels-Alder reaction can be reversed by using elevated temperatures, for example 70 to 100 ° C, so that hair remodeling is possible after heating the polymer film formed, with neither the hold nor the moisture resistance being adversely affected by the remodeling ,

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

Here, free valence is to be understood as meaning the number of atomic bonds which originate from the corresponding structural fragment at the position indicated by the symbol "*". In the context of the present invention, in each case an atomic bond preferably proceeds from the positions of the structural fragments marked with the symbol "*" to form further structural fragments.

enthält. Der Einsatz von Dienverbindungen der Formel (IIa), welche auch als Furfurylalkohol bekannt sind, hat sich im Zusammenhang mit der Bildung des Diels-Alder Reaktionsproduktes auf den Haaren während der Trocknung sowie der Retro Diels-Alder Reaktion durch Erhitzen als besonders vorteilhaft erwiesen, da dieses Dien besonders effizient mit der Dienophilverbindung der Formel (IV) reagiert. Preferably, certain diene compounds are used. It has therefore proved to be advantageous in this connection if the at least one diene-containing polyurethane polymer comprises at least one diene compound of the formula (IIa)

contains. The use of diene compounds of the formula (IIa), which are also known as furfuryl alcohol, has proven to be particularly advantageous in connection with the formation of the Diels-Alder reaction product on the hair during drying and the retro Diels-Alder reaction by heating this diene reacts particularly efficiently with the dienophile compound of the formula (IV).

The at least one diene compound of the formula (II), in particular of the formula (IIa), is preferably present in a certain proportion by weight in the diene-containing polyurethane polymer. This ensures a sufficient Diels-Alder reaction during drying, so that a high degree of hold as well as an excellent long-term hold can be achieved. Preferred embodiments are therefore characterized in that the at least one diene-containing polyurethane polymer, the at least one diene compound of formula (II), in particular of the formula (IIa) - based on its total weight - in a total amount of 0.2 to 5.0 wt. -%, preferably from 0.5 to 4.0 wt .-%, preferably from 1.0 to 3.0 wt .-%, in particular from 1.5 to 2.5 wt .-%, contains.

worin
R₂ bis R₄, jeweils unabhängig voneinander, für eine lineare oder verzweigte C₁-C₄-Alkylgruppe, insbesondere eine lineare C₁-C₂-Alkylgruppe, stehen, a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 6, insbesondere von 1 bis 4, stehen, und X⁺ für ein physiologisch verträgliches Kation, insbesondere Natrium, steht,
enthält. Unter Polyurethanverbindungen sind Verbindungen zu verstehen, welche mindestens zwei Urethangruppen -NH-C(O)- aufweisen. Weiterhin sind unter Polyetherverbindungen Verbindungen zu verstehen, welche mindestens zwei Ethergruppen aufweisen. Ionische Polyetherverbindungen enthalten mindestens eine Gruppe mit einer kationischen und/oder anionischen Ladung, bevorzugt einer anionischen Ladung, insbesondere mindestens einer Sulfonatgruppe -SO₃ ^–. Die Dienophilverbindung der Formel (IV) kann dann während der Trocknung des Polymerfilms auf den Haaren mit der Dienverbindung der Formel (II), insbesondere der Formel (IIa), reagieren, so dass ein hoher Haltegrad sowie eine hervorragende Feuchtigkeitsbeständigkeit erreicht werden. Da diese Reaktion durch Erhitzen rückgängig gemacht werden kann, ist eine Remodellierbarkeit der Frisur nach Erhitzen möglich, wobei die neue Frisur während der Abkühlung durch erneute Diels-Alder Reaktion zwischen dem Dien-haltigen Polyurethanpolymer und dem Dienophil-haltigen Polyurethanpolymer fixiert wird. The dienophile-containing polyurethane polymer used according to the invention preferably contains certain structural units. Preferred embodiments are therefore characterized in that the at least one dienophile-containing polyurethane polymer comprises at least one polyurethane compound of the formula (I) and at least one dienophile compound of the formula (IV) and at least one ionic polyether compound of the formula (III)

wherein
R ₂ to R ₄ , each independently of one another, represent a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a, and b, in each case independently of one another, are integers from 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium,
contains. Polyurethane compounds are compounds which have at least two urethane groups -NH-C (O) -. Furthermore, polyether compounds are compounds which have at least two ether groups. Ionic polyether compounds contain at least one group having a cationic and / or anionic charge, preferably an anionic charge, in particular at least one sulfonate group -SO ₃ ^- . The dienophile compound of the formula (IV) can then react with the diene compound of the formula (II), in particular the formula (IIa), during the drying of the polymer film on the hair, so that a high degree of hold and excellent moisture resistance are achieved. Since this reaction can be reversed by heating, remodeling of the hairstyle after heating is possible, the new hairstyle being fixed during cooling by renewed Diels-Alder reaction between the diene-containing polyurethane polymer and the dienophile-containing polyurethane polymer.

enthält. Der Einsatz von Dienophilverbindungen der Formel (IVa), welche auch als N-(2-Hydroxyethyl)maleimid bezeichnet werden, hat sich im Zusammenhang mit der Bildung des Diels-Alder Reaktionsproduktes auf den Haaren während der Trocknung sowie der Retro Diels-Alder Reaktion durch Erhitzen als besonders vorteilhaft erwiesen, da diese Dienophilverbindung besonders effizient mit der Dienverbindung der Formel (II), insbesondere der Formel (IIa), reagiert. As the dienophile compound of the formula (IV), a dienophile compound of the formula (IVa) is preferably used. It is therefore advantageous for the purposes of the present invention if the at least one dienophile-containing polyurethane polymer comprises at least one dienophile compound of the formula (IVa)

contains. The use of dienophile compounds of formula (IVa), which are also referred to as N- (2-hydroxyethyl) maleimide, has been associated with the formation of the Diels-Alder reaction product on the hair during drying as well as the retro Diels-Alder reaction Heating proved to be particularly advantageous since this dienophile compound reacts particularly efficiently with the diene compound of the formula (II), in particular the formula (IIa).

The at least one dienophile compound of the formula (IV), in particular of the formula (IVa), is preferably present in a certain proportion by weight in the dienophile-containing polyurethane polymer. This ensures a sufficient Diels-Alder reaction during drying, so that a high degree of hold as well as an excellent long-term hold can be achieved. Preferred embodiments are therefore characterized in that the at least one dienophile-containing polyurethane polymer, the at least one dienophile compound of the formula (IV), in particular of the formula (IVa) - based on its total weight - in a total amount of 0.2 to 5.0 wt. -%, preferably from 0.5 to 4.0 wt .-%, preferably from 0.8 to 2.5 wt .-%, in particular from 1.0 to 2.0 wt .-%, contains.

worin
a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 4 stehen und
X⁺ für Natrium steht,
enthält. Bevorzugt enthalten sowohl das Dien-haltige Polyurethanpolymer als auch das Dienophil-haltige Polyurethanpolymer mindestens eine ionische Polyetherverbindung der Formel (IIIa). Der Einsatz dieser ionischen Polyetherverbindung hat sich in Bezug auf die Stabilisierung der Polyurethanpolymere während der Dispergierung dieser Polymere in der wässrigen Phase als vorteilhaft erwiesen. Moreover, it has been found in the context of the present invention to be advantageous if a certain polyether compound is used as the abovementioned ionic polyether compound of the formula (III). It is therefore preferred in the context of the present invention for the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer to contain at least one ionic polyether compound of the formula (IIIa)

wherein
a and b, each independently, are integers from 1 to 4 and
X ⁺ stands for sodium,
contains. Preferably, both the diene-containing polyurethane polymer and the dienophile-containing polyurethane polymer contain at least one ionic polyether compound of the formula (IIIa). The use of this ionic polyether compound has proven to be advantageous in terms of stabilizing the polyurethane polymers during the dispersion of these polymers in the aqueous phase.

The diene-containing polyurethane polymers and the dienophile-containing polyurethane polymers of the present invention preferably comprise the at least one polyurethane compound of the formula (I) which represents the polyisocyanate used and the at least one ionic polyether compound of the formula (III), in particular of the formula (IIIa) , in a certain proportions by weight. Preferred embodiments of the present invention are therefore characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer, the at least one polyurethane compound of formula (I) - each based on its total weight - each in a total amount of 4.0 to 30 wt .-%, preferably from 5.0 to 25 wt .-%, preferably from 8.0 to 20 wt .-%, in particular from 10 to 15 wt .-%, contains.

In addition, it is advantageous for the purposes of the present invention if the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer contain the at least one polyether compound of the formula (III), in particular of the formula (IIIa), in each case based on its total weight in a total amount of from 2.0 to 7.0% by weight, preferably from 2.5 to 6.0% by weight, preferably from 3.0 to 5.0% by weight, especially from 3.5 to 4.5 wt .-%, contains.

The use of the abovementioned amounts of the polyurethane compound of the formula (I) and of the ionic polyether compound of the formula (III), in particular of the formula (IIIa), leads to a high stability of the diene- and dienophile-containing polyurethane polymers in the aqueous dispersion, so that the cosmetic agents have a high storage stability.

worin
R₅ und R₆, jeweils unabhängig voneinander, für Wasserstoff oder eine lineare C₁-C₄-Alkylgruppe, insbesondere für Wasserstoff oder eine lineare C₁-C₂-Alkylgruppe, stehen, wobei mindestens einer der Reste R₅ oder R₆ für eine lineare C₁-C₄-Alkylgruppe, steht und
c, d und e, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 60, bevorzugt von 1 bis 40, stehen
enthält. Bevorzugt enthalten sowohl das Dien-haltige Polyurethanpolymer als auch das Dienophil-haltige Polyurethanpolymer zusätzlich mindestens eine nichtionische Polyetherverbindung der Formel (V). Durch den zusätzlichen Einsatz der zuvor angeführten nichtionischen Polyetherverbindung der Formel (V) können die Dien- und Dienophil-haltigen Polyurethanpolymer weitergehend stabilisiert werden. Bei der nichtionischen Polyetherverbindung der Formel (V) handelt es sich bevorzugt um ein Block-Copolymer aus Ethylenoxid und Propylenoxid. In addition, it has proved to be advantageous in the context of the present invention if the diene- and / or dienophile-containing polyurethane polymer in addition to the abovementioned ionic polyether compound of the formula (III) or (IIIa) additionally at least one nonionic polyether compound of the formula ( V) contains. Preferred cosmetic agents of this embodiment are therefore characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer additionally comprises at least one nonionic polyether compound of the formula (V)

wherein
R ₅ and R ₆ , each independently of one another, are hydrogen or a linear C ₁ -C ₄ -alkyl group, in particular hydrogen or a linear C ₁ -C ₂ -alkyl group, where at least one of the radicals R ₅ or R _{6 is} a linear C ₁ -C ₄ alkyl group, and
c, d and e, each independently, are integers from 1 to 60, preferably from 1 to 40, stand
contains. Preferably, both the diene-containing polyurethane polymer and the dienophile-containing polyurethane polymer additionally comprise at least one nonionic polyether compound of the formula (V). The additional use of the above-mentioned nonionic polyether compound of the formula (V), the diene and dienophile-containing polyurethane polymer can be further stabilized. The nonionic polyether compound of the formula (V) is preferably a block copolymer of ethylene oxide and propylene oxide.

It has proved to be advantageous in this context if the nonionic polyether compound of the formula (V) has a certain number-average molar mass Mn. The number average molecular weight Mn is determined by determining the OH number according to DIN 53240-2 (November 2007) determined. It is therefore preferred in this context if the at least one nonionic polyether compound of the formula (V) has a number average molecular weight Mn of from 500 to 5,000 g / mol, preferably from 800 to 4,000 g / mol, preferably from 1,000 to 3,000 g / mol, in particular from 1,800 to 2,100 g / mol.

Moreover, it may be preferred in this context if the nonionic polyether compound of the formula (V) is present in certain proportions by weight in the diene and / or dienophile-containing polyurethane polymer. Preferred embodiments are therefore characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer, the at least one nonionic polyether compound of the formula (V) - each based on its total weight - each in a total amount of 2.0 to 7.0% by weight, preferably from 2.5 to 6.0% by weight, preferably from 3.0 to 5.0% by weight.

Moreover, it has proved to be advantageous in this context if the diene and / or dienophile-containing polyurethane polymer has a specific weight ratio of the ionic polyether compound of the formula (III), in particular (IIIa), to the nonionic polyether compound of the formula (V) , It is therefore preferred for the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer to have a weight ratio of the at least one ionic polyether compound of the formula (III), in particular of the formula (IIIa), to the at least one nonionic polyether compound of the Formula (V) from 40: 1 to 5: 1, preferably from 35: 1 to 10: 1, in particular from 25: 1 to 15: 1, having.

In addition to the nonionic polyether compound of the formula (V) described above, it can also be provided according to the invention that the diene- and / or dienophile-containing polyurethane polymer comprise at least one further nonionic polyether compound. This polyether compound may be contained alone or in combination with the at least one nonionic polyether compound of the formula (V) in the diene and / or dienophile-containing polyurethane polymers. Preferred embodiments are therefore characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer additionally contains at least one nonionic polyether compound selected from the group of homopolymers of ethylene oxide, propylene oxide and butylene oxide, in particular homopolymers of propylene oxide ,

It has proved in this context to be advantageous if the nonionic polyether compound in the form of the homopolymer of ethylene oxide, propylene oxide or butylene oxide has a certain number average molecular weight Mn. The number average molecular weight Mn is determined by determining the OH number according to DIN 53240-2 (November 2007) determined. It is therefore preferred in this context if the at least one nonionic polyether compound, in particular the homopolymer of propylene oxide, a number average molecular weight Mn of 500 to 5000 g / mol, preferably from 800 to 4000 g / mol, preferably from 1000 to 3000 g / mol , in particular from 1,800 to 2,100 g / mol.

Moreover, it may be preferred in this context if the nonionic polyether compound in the form of the homopolymer of ethylene oxide, propylene oxide or butylene oxide in certain proportions by weight in the diene and / or dienophile-containing polyurethane polymer is included. Preferred embodiments are therefore characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer, the at least one nonionic polyether compound, in particular the homopolymer of propylene oxide - each based on its total weight - each in a total amount of 65 to 90 wt .-%, preferably from 68 to 87 wt .-%, preferably from 70 to 85 wt .-%, in particular from 75 to 80 wt .-%, contains.

The diene and dienophile-containing polyurethane polymers can be prepared by mixing the ionic polyether polyol corresponding to the formula (III), in particular of the formula (IIIa), of the diene corresponding to the formula (II), in particular (IIa) or of the formula (IV ), in particular (IVa), corresponding dienophile and optionally the additional nonionic polyether polyols with the polyisocyanate corresponding to the polyurethane compound of the formula (I) and addition of a catalyst at elevated temperatures. However, it is preferred in the context of the present invention, when initially NCO-terminated polyurethane prepolymers by mixing the corresponding formula (III), in particular the formula (IIIa) corresponding ionic polyether and optionally the additional nonionic polyether polyols with the polyurethane compound of the formula (I ) corresponding polyisocyanate and addition of a catalyst at elevated temperatures. For this purpose, the abovementioned polyether polyols are preferably heated to temperatures of from 70 to 95 ° C., in particular 75 ° C., in order to melt the polyol (s). It may also be preferred to stir the molten polyol (s) under vacuum to dry the polyol mixture. The addition of the at least one polyisocyanate in stoichiometric excess is preferably carried out at temperatures of 50 to 65 ° C, in particular 60 ° C. The formation of the polyurethane prepolymer is preferably carried out at temperatures of 70 to 95 ° C, in particular at 80 ° C, for a period of 1 to 24 hours. To accelerate the formation of the polyurethane prepolymer, it may be preferred if at least one catalyst is added to the polyol (s) and the at least one polyisocyanate. Suitable catalysts are for example tin, bismuth or zinc-based. A particularly preferably used catalyst is dimethyldineodecanoacetin, which is commercially available under the trade name Fomrez UL28 from Momentive Performance Materials GmbH (Germany). Furthermore, the use of bismuth neodecanot and tin neodecanoate, which are commercially available under the trade names BorchiKat 315 and BorchiKat 0716 from OMG Borchers GmbH (Germany). Preferred embodiments of the present invention are therefore characterized in that the polyurethane prepolymer is obtained using a previously defined catalyst.

The formation of the polyurethane prepolymer is interrupted when the content of free isocyanate groups reaches the calculated value. The content of free isocyanate groups, for example, by standard titration with dibutylamine according to ISO 11909: 2007-05 be determined. Preferred levels of free isocyanate in the polyurethane prepolymer are from 0.2% to 3.0% by weight, especially from 0.5% to 2.0% by weight, based on the total amount of polyols and polyisocyanates of the polyurethane prepolymer.

As described above, the polyisocyanate is used in a concentration which is higher than the stoichiometrically required concentration for complete reaction of the polyisocyanate with all available OH groups of the polyols used. The amount of polyisocyanate is preferably from 20 to 150% of the stoichiometric amount which is required for a complete reaction with all OH groups of the at least one polyol, in particular the mixture of the polyols described above.

As soon as the content of free isocyanate groups reaches the previously defined preferred value, the dienophile corresponding to the diene compound of the formula (II), especially (IIa), or the dienophile compound of the formula (IV), in particular (IVa), becomes stoichiometric Excess added. After complete reaction of the free NCO groups of the polyurethane prepolymer with the diene or dienophile, the temperature is preferably lowered to 60 ° C and the diene or dienophile-containing polyurethane polymer formed in a suitable organic solvent, such as ethyl acetate or acetone, dissolved.

The diene and dienophile-containing polyurethane polymers of the present invention preferably have specific average molecular weights M _w . These are determined by GPC according to DIN 55672-2: 2008-06 certainly. Preferred cosmetic agents according to the invention are therefore characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer each have an average molecular weight M _{w of} from 2,500 to 50,000 g / mol, preferably from 5,000 to 45,000 g / mol, preferably from 10,000 to 40,000 g / mol, in particular from 20,000 to 35,000 g / mol. Of the Use of diene and dienophile-containing polyurethane polymers having the above-indicated average molecular weights proved to be advantageous in terms of rigidity and moisture resistance of the resulting polymer film during drying by crosslinking the diene-containing polyurethane polymer with the dienophile-containing polyurethane polymer by Diels-Alder reaction ,

It may be preferred within the scope of the present invention if the at least one diene and / or dienophile-containing polyurethane polymer is neutralized prior to dispersion by addition of a neutralizing agent, for example triethylamine, to facilitate dispersion.

The aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer can be obtained, for example, by dispersing the diene and dienophile-containing polyurethane polymers dissolved in the organic solvent in a continuous phase. For this purpose, the at least one diene and the at least one dienophile-containing polyurethane polymer can be added to the continuous phase and dispersed together. However, it is preferred according to the invention if the diene-containing polyurethane polymer and the dienophile-containing polyurethane polymer are first dispersed separately from one another in a continuous phase and these dispersions are subsequently combined. The continuous phase preferably contains at least 50% by volume, preferably at least 80% by volume, preferably at least 90% by volume, particularly preferably 100% by volume, based on the total volume of the continuous phase, of water as the solvent. In this aqueous continuous phase, further substances such as salts and buffers may be included. The dispersion can be carried out with vigorous stirring. Preferably, the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer is used as a solution in an organic solvent, in particular acetone, and then dispersed in water. The dispersion is advantageously carried out at a temperature of 20 to 60 ° C, in particular at 40 ° C. It is within the scope of the present invention possible to achieve the dispersion by mechanical stirring or by the use of dispersing machines, such as high-pressure homogenizers, microfluidizers or rotor-stator dispersion machines. Particularly preferably, the respective dissolved polyurethane prepolymer is dispersed in a continuous aqueous phase, in particular water, and the predispersion formed is homogenized in order to form a stable dispersion. The term "dispersion" according to the invention oil-in-water dispersions or (O / W) understood dispersions in which water forms the continuous phase in which the diene and / or dienophile-containing polyurethane polymer is dispersed. The homogenization of the predispersion can be effected by shear forces, for example by means of a high-pressure homogenizer. The homogenizer preferably has an energy input of 10 ³ to 10 ⁵ J per second per liter of the dispersion. Preferably, shear rates of at least 1,000,000 per second are used. The organic solvent used to solubilize the polyurethane prepolymer, for example ethyl acetate or acetone, can be removed after preparation of the stable dispersion, for example by using a rotary evaporator.

It has turned out to be advantageous according to the invention if the aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer has a specific average particle size D ₅₀ . It is therefore preferred in the context of the present invention for the aqueous dispersion to have an average particle size D _{50 of} from 50 to 1000 nm, preferably from 50 to 500 nm, in particular from 100 to 400 nm. The mean particle size D _{50 of} the aqueous dispersion will be determined by laser diffraction (LD).

The aqueous dispersion preferably has a certain content of diene and dienophile-containing polyurethane polymer. Preferred embodiments according to the invention are therefore characterized in that the aqueous dispersion has a solids content, based on the total weight of the dispersion, of from 5 to 68% by weight, preferably from 10 to 60% by weight, preferably from 10 to 55% by weight. , in particular from 10 to 50 wt .-%, having. The solids content refers to the total solids content of the aqueous dispersion, ie the sum of the solids content of diene-containing polyurethane polymer and dienophile-containing polyurethane polymer in the aqueous dispersion. The use of aqueous dispersions having the above-mentioned solids contents of a mixture of diene and dienophile-containing polyurethane polymers leads to a particularly high long-term stability and good moisture resistance of the hairstyle produced with the agents according to the invention. In addition, a good remodeling of the hairstyle is possible.

The diene and dienophile-containing polyurethane polymer are preferably present in the aqueous dispersion in certain weight ratios. It is therefore preferred in the context of the present invention for the aqueous dispersion to have a weight ratio of the at least one diene-containing polyurethane polymer to the at least one dienophile-containing polyurethane polymer of from 6: 1 to 1: 6, preferably from 5: 1 to 1: 5, preferably from 4: 1 to 1: 4, in particular from 2: 1 to 1: 2, having. The use of the above-mentioned weight ratios of the diene-containing polyurethane polymer to the dienophile-containing polyurethane polymer has proven to be particularly advantageous in terms of cross-linking during drying and thus the high degree of retention and high rigidity. Furthermore, the use of such weight ratios allows a high remodeling ability of the hairstyle achieved with the cosmetic compositions according to the invention without re-application of the cosmetic product.

The cosmetic agent contains the at least one aqueous dispersion of the mixture of at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer, preferably in certain quantitative ranges. It is therefore within the scope of the present invention advantageous if the cosmetic agent - based on its total weight - 0.5 to 10 wt .-%, preferably 1.0 to 9.5 wt .-%, preferably 2.0 to 9, 0 wt .-%, in particular 3.0 to 8.0 wt .-%, of at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer contains. The use of the abovementioned amounts of the at least one aqueous dispersion of diene- and dienophile-containing polyurethane polymers in the cosmetic styling agents according to the invention leads to outstanding long-term stability and good moisture resistance of the hairstyle produced with these agents. Furthermore, agents with the above-mentioned amounts of this dispersion have a high remodeling ability. In addition, these amounts do not lead to incompatibilities with other ingredients, so that a high storage stability of the cosmetic compositions of the invention results.

As a second essential ingredient b), the cosmetic compositions according to the invention contain at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof.

Cationic compounds are understood as meaning compounds which contain at least one permanently cationic nitrogen atom. Permanently cationized nitrogen atoms are to be understood as meaning those nitrogen atoms which carry a positive charge and thereby form a quaternary ammonium compound. Quaternary ammonium compounds are most commonly prepared by reacting tertiary amines with alkylating agents, e.g. Methyl chloride, benzyl chloride, dimethyl sulfate, dodecyl bromide, but also produced ethylene oxide. Depending on the tertiary amine used, the following groups are known in particular: alkylammonium compounds, alkenylammonium compounds, imidazolinium compounds and pyridinium compounds.

The cosmetic agent according to the invention preferably contains at least one cationic surfactant. According to the invention, surfactants are amphiphilic (bifunctional) compounds which consist of at least one hydrophobic and at least one hydrophilic moiety. The hydrophobic moiety is preferably a hydrocarbon chain of 8 to 28 carbon atoms, which may be saturated or unsaturated, linear or branched. Particularly preferably, this C ₈ -C ₂₈ -alkyl chain is linear. Preferred embodiments of the present invention are characterized in that the cosmetic agent comprises at least one cationic surfactant selected from the group of quaternary alkyltrimethylammonium halides, quaternary alkyltri (2-hydroxyethoxy) alkyl-ammonium phosphates, and mixtures thereof, in particular mixtures of C ₁₆ -alkyltrimethylammonium chloride and C _18- Alkyltri [2- (2-hydroxyethoxy) ethyl] -ammonium phosphate. The use of the aforementioned cationic surfactants, in particular the mixtures of C ₁₆ -alkyltrimethylammonium chloride and C ₁₈ -alkyltri [2- (2-hydroxyethoxy) ethyl] -ammonium phosphate, have proved to be advantageous in terms of increasing the degree of retention, rigidity and the Moisture resistance proved. Furthermore, the use of such cationic surfactants leads to a high care and conditioning of the keratinic fibers.

The cationic surfactants are preferably used in the cosmetics according to the invention in certain ranges. It is therefore within the scope of the present invention advantageous if the cosmetic agent - based on its total weight - 0.1 to 2.0 wt .-%, preferably 0.2 to 1.5 wt .-%, preferably 0.3 to 1.0% by weight, in particular 0.4 to 0.6% by weight, of at least one cationic surfactant, in particular a mixture of C ₁₆ -alkyltrimethylammonium chloride and C ₁₈ -alkyltri [2- (2-hydroxyethoxy) ethyl] - ammonium phosphate. The use of the above-mentioned amounts of the at least one cationic surfactant ensures a uniform distribution of the aqueous dispersion of the diene- and dienophile-containing polyurethane polymers and thus a uniform hairstyle hold. In addition, these quantities can be used to create an optically and haptically appealing mousse which breaks down quickly and can be distributed well on the keratinic fibers, in particular the human hair.

• – Copolymere von mit Diethylsulfat quaterniertem Dimethylaminoethylmethacrylat mit N-Vinylpyrrolidon, welche die INCI-Bezeichnung Polyquaternium-11 aufweisen und unter den Handelsnamen Gafquat^® 440, Gafquat^®734, Gafquat^®755 (jeweils Firma ISP) sowie Luviquat PQ 11 PN (Firma BASF SE) kommerziell erhältlich sind
• – Copolymere aus Methacryloylaminopropyllauryldimethylammoniumchlorid mit N-Vinylpyrrolidon und Dimethylaminopropylmethacrylamid, welche die INCI-Bezeichnung Polyquaternium-55 aufweisen und unter den Handelsnamen Styleze^® W-10, Styleze^® W-20 (Firma ISP) kommerziell erhältlich sind,
• – Copolymere aus Methacryloylaminopropyllauryldimethylammoniumchlorid mit N-Vinylpyrrolidon, N-Vinylcaprolactam und Dimethylaminopropylmethacrylamid, welche die INCI-Bezeichnung Polyquaternium-69 aufweisen und unter den Handelsnamen Aquastyle^® 300 (Firma ISP) kommerziell erhältlich sind,

sowie Mischungen dieser Polymere. In addition to or instead of the cationic surfactant, the cosmetic compositions of the invention may contain at least one cationic polymer. Preferred cosmetic agents of the present invention are therefore characterized in that they contain at least one cationic polymer selected from the group of copolymers of vinylpyrrolidone with quaternized dialkylaminoalkyl acrylates or methacrylates, cationic hydroxyethylcelluloses, methylvinylimidazolium chloride / vinylpyrrolidone copolymers, chitosans and mixtures thereof, in particular copolymers of hydroxyethylcellulose with dimethyldiallylammonium chloride. Suitable copolymers of vinylpyrrolidone with quaternized dialkylaminoalkyl acrylates are, for example

• - Copolymers of diethyl sulfate quaternized dimethylaminoethyl with N-vinylpyrrolidone, which have the INCI name Polyquaternium-11 and under the trade names Gafquat ^® 440, Gafquat ^® 734, Gafquat ^® 755 (each company ISP) and Luviquat PQ 11 PN (BASF SE ) are commercially available
• - copolymers of Methacryloylaminopropyllauryldimethylammoniumchlorid with N-vinylpyrrolidone and dimethylaminopropyl methacrylamide, having the INCI name Polyquaternium-55 and are commercially available under the trade name Styleze W-10 ^{®, ®} Styleze W-20 (ISP), are
• - copolymers of Methacryloylaminopropyllauryldimethylammoniumchlorid with N-vinylpyrrolidone, N-vinyl caprolactam, and dimethylaminopropyl methacrylamide, having the INCI name Polyquaternium-69 and sold under the trade name Aqua Style ^® 300 (ISP) are commercially available,

as well as mixtures of these polymers.

• – N-Vinylpyrrolidon/1-Vinyl-3-methyl-1H-imidazoliumchlorid-Copolymere (wie beispielsweise Polymere mit der INCI-Bezeichnung Polyquaternium-16 unter den Handelsbezeichnungen Luviquat^® Style, Luviquat^® FC 370, Luviquat^® FC 550, Luviquat^® FC 905 und Luviquat^® HM 552 (BASF SE)),
• – N-Vinylpyrrolidon/1-Vinyl-3-methyl-1H-imidazoliummethylsulfat-Copolymere (wie beispielsweise Polymere mit der INCI-Bezeichnung Polyquaternium-44 unter der Handelsbezeichnung Luviquat^® Care (BASF SE)),
• – N-Vinylpyrrolidon/N-Vinylcaprolactam/1-Vinyl-3-methyl-1H-imidazolium-Terpolymer (wie beispielsweise Polymere mit der INCI-Bezeichnung Polyquaternium-46 unter den Handelsbezeichnungen Luviquat^® Care oder Luviquat^® Hold (BASF SE)),
• – N-Vinylpyrrolidon/Methacrylamid/N-Vinylimidazol/1-Vinyl-3-methyl-1H-imidazoliummethylsulfat-Copolymere (wie beispielsweise das mit der INCI-Bezeichnung Polyquaternium-68 unter der Handelsbezeichnung Luviquat^® Supreme (BASF SE)),

sowie Gemische aus diesen Polymeren. Suitable methylvinylimidazolium chloride / vinylpyrrolidone copolymers are, for example

• - N-vinylpyrrolidone / 1-vinyl-3-methyl-1H-imidazolium chloride copolymers (such as polymers having the INCI name Polyquaternium-16 under the trade names Luviquat ^® Style, Luviquat ^® FC 370, Luviquat ^® FC 550, Luviquat ^® FC 905 and Luviquat HM 552 ^® (BASF SE)),
• - N-vinylpyrrolidone / 1-vinyl-3-methyl-1H-imidazolium copolymers (for example polymers having the INCI name Polyquaternium-44 (under the trade name Luviquat Care ^® BASF SE)),
• - N-vinylpyrrolidone / N-vinylcaprolactam / 1-vinyl-3-methyl-1H-imidazolium terpolymer (such as polymers having the INCI name Polyquaternium-46 under the trade names Luviquat ^® Care or Luviquat ^® Hold (BASF SE)),
• - N-vinylpyrrolidone / methacrylamide / N-vinyl imidazole / 1-vinyl-3-methyl-1H-imidazolium-copolymers (such as for example that with the INCI name Polyquaternium-68 ^® under the trade name Luviquat Supreme (BASF SE)),

and mixtures of these polymers.

Copolymers of hydroxyethylcellulose and dimethyldiallylammonium chloride have proven to be particularly preferred. Such copolymers have the INCI name Polyquaternium-4 and is commercially available for example under the trade names Celquat ^® H 100 and Celquat ^® L 200 by the company National Starch.

By adding such cationic polymers, in particular cationic copolymers of hydroxyethyl cellulose with dimethyldiallylammonium chloride, the hold and the rigidity can be further increased without, however, negatively influencing the remodeling ability of the cosmetic compositions according to the invention. In addition, these polymers lead to a high care and conditioning of keratin fibers treated with these agents.

The cationic polymers are preferably used in the cosmetic compositions in specific quantitative ranges. It is therefore advantageous according to the invention if the cosmetic agent - based on its total weight - 0.05 to 2.5 wt .-%, preferably 0.1 to 2.0 wt .-%, preferably 0.2 to 1.5 wt .-%, in particular 0.3 to 1.0 wt .-%, of at least one cationic polymer, in particular copolymers of hydroxyethyl cellulose with dimethyldiallyl ammonium chloride. The use of cationic polymers in the above-mentioned quantitative ranges leads to a further increase in maintenance and rigidity, without negatively influencing the remodeling ability of the cosmetic compositions according to the invention. In addition, these polymers have hair-care properties, so that an additional nourishing effect, in particular a high gloss, of the keratinic fibers is achieved.

Particularly preferred cosmetic agents contain at least one previously mentioned cationic surfactant and at least one previously mentioned cationic polymer.

The cosmetic compositions according to the invention are preferably made of styling mousse. Therefore, these agents contain as third essential component c) at least one blowing agent in an amount of 0.1 to 10 wt .-% in order to achieve the foaming of the cosmetic product.

The cosmetic agents of the present invention are preferably formulated as aerosols. As pressure-resistant containers for such aerosols come vessels made of metal (aluminum, tinplate, tin), protected or non-splitterndem plastic or glass, which is coated with plastic on the outside, in question, in their selection pressure and fracture resistance, corrosion resistance, light Fillability as well as aesthetic aspects, handiness, printability, etc. play a role. Special internal protective lacquers ensure the corrosion resistance to the cosmetic product according to the invention in the pressure vessel. Particularly preferably, the valves used on an internally painted valve disc, wherein the coating and valve material are compatible with each other. If aluminum valves are used, their valve plates can be internally z. B. be coated with Micoflex paint. If tinplate valves are used according to the invention, their valve disks can be internally z. B. be coated with PET (polyethylene terephthalate). With regard to the quantity ratio of blowing agent to the other constituents of the cosmetic compositions, the sizes of the aerosol droplets and the respective size distribution can be adjusted for a given spraying device.

In principle, all blowing agents known to the person skilled in the art can be used as blowing agents. However, it is preferred according to the invention to use certain blowing agents. Preferred embodiments of the cosmetic compositions according to the invention are therefore characterized in that they contain at least one blowing agent selected from the group consisting of dimethyl ether, CO ₂ , air, propane, n-butane, isobutane, n-pentane, isopentane and mixtures thereof, in particular a mixture of propane and n-butane. The use of dimethyl ether as blowing agent has been found in the context of the present invention with respect to the texture and refraction of the mousse and the complete emptying of the aerosol can as particularly advantageous.

The cosmetic agent contains the at least one propellant in a total amount of 0.1 to 10 wt .-%. However, it is preferred in the context of the present invention to use the blowing agent within narrower limits. Preferred cosmetic agents are therefore characterized in that they contain, based on their total weight, 0.5 to 9.5% by weight, preferably 2.0 to 9.0% by weight, preferably 4.0 to 8.5% by weight .-%, in particular 5.0 to 8.0 wt .-%, of at least one propellant, in particular a mixture of propane and n-butane. The use of the aforementioned amounts ensures a satisfactory emptying of the aerosol can and ensures an attractive texture of the mousse and a rapid refraction of the foam and thus a good dispersibility of the mousse on the keratinic fibers, especially the human hair.

In addition to the above-described components a) to c), the cosmetic compositions according to the invention may contain further active ingredients and ingredients selected from the group of (i) pH adjusters, (ii) nonionic and amphoteric polymers, (iii) oils, (iv) nonionic and amphoteric surfactants and mixtures thereof.

It may be preferred according to the invention that the cosmetic agents have a specific pH. To set the desired pH, all the acids and bases customary in the art can be used. Preferred embodiments of the cosmetic compositions are characterized in that they additionally contain at least one pH-adjusting agent from the group of organic acids, in particular lactic acid, organic bases, in particular alkanolamines, and mixtures thereof in a total amount - based on their total weight - from 0.0001 to 2.0 wt .-%, preferably from 0.001 to 1.0 wt .-%, preferably from 0.005 to 0.5 wt .-%, in particular from 0.01 to 0.1 wt .-%, included.

In addition to the above-mentioned cationic polymers, the cosmetic agents according to the invention may contain further polymers selected from nonionic and amphoteric polymers. By using such polymers, the long-term content of the cosmetic composition according to the invention can be further increased. It is therefore advantageous according to the invention if the cosmetic agent contains at least one further nonionic and / or amphoteric film-forming and / or setting polymer. However, it may also be preferred to employ as the film-forming and / or setting polymer exclusively the above-mentioned diene- and dienophile-containing polyurethane polymers or a combination of these polymers with at least one cationic polymer mentioned above.

Film-forming or setting polymers contribute to the retention of the imprinted form of the fiber collective, eg the overall hairstyle, by film formation. By film-forming or setting polymers are meant those polymers which leave a continuous film on the skin, hair or nails when drying. Further, film-forming polymers are understood as meaning those 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.

• – Polyvinylpyrrolidon,
• – Copolymeren aus N-Vinylpyrrolidon und Vinylestern von Carbonsäuren mit 2 bis 18 Kohlenstoffatomen, insbesondere aus N-Vinylpyrrolidon und Vinylacetat,
• – Copolymere aus N-Vinylpyrrolidon und N-Vinylimidazol und Methacrylamid,
• – Copolymere aus N-Vinylpyrrolidon und N-Vinylimidazol und Acrylamid,
• – Copolymere aus N-Vinylpyrrolidon mit N,N-Di(C₁ bis C₄)-Alkylamino-(C₂ bis C₄)-alkylacrylamid,
• – Copolymere aus N-Vinylpyrrolidon mit N,N-Di(C₁ bis C₄)-Alkylamino-(C₂ bis C₄)-alkylacrylamid,

sowie deren Mischungen. According to the invention, a nonionic polymer is understood as meaning a polymer which carries in a protic solvent under standard conditions substantially no structural units with permanently cationic or anionic groups which have to be compensated by counterions while maintaining the electroneutrality. Particularly preferred nonionic polymers according to the invention are selected from the group of

• - polyvinylpyrrolidone,
• Copolymers of N-vinylpyrrolidone and vinyl esters of carboxylic acids having 2 to 18 carbon atoms, in particular N-vinylpyrrolidone and vinyl acetate,
• Copolymers of N-vinylpyrrolidone and N-vinylimidazole and methacrylamide,
• Copolymers of N-vinylpyrrolidone and N-vinylimidazole and acrylamide,
• Copolymers of N-vinylpyrrolidone with N, N-di (C ₁ to C ₄ ) -alkylamino (C ₂ to C ₄ ) -alkylacrylamide,
• Copolymers of N-vinylpyrrolidone with N, N-di (C ₁ to C ₄ ) -alkylamino (C ₂ to C ₄ ) -alkylacrylamide,

as well as their mixtures.

The term amphoteric polymers includes both those polymers which contain in the molecule both free amino groups and free -COOH or SO ₃ H groups and which are capable of forming internal salts, as well as zwitterionic polymers which in the molecule have quaternary ammonium groups and -COO ^- or -SO ₃ ^- groups, and such polymers comprising -COOH or SO ₃ H groups and quaternary ammonium groups. A preferred amphoteric polymer is a copolymer of tert-butylaminoethyl methacrylate, N- (1,1,3,3-tetramethylbutyl) acrylamide and two or more monomers from the group of acrylic acid, methacrylic acid and their (C ₁ to C ₄ ) -alkyl esters , Such polymers are commercially available, for example under the trade name Amphomer ^®.

The other film-forming and / or setting polymers may be used in the cosmetic compositions according to the invention preferably in a total amount of 0.1 wt .-% to 12.0 wt .-%, preferably from 0.2 wt .-% to 10.0 wt. -%, in particular from 0.5 wt .-% to 8.0 wt .-%, in each case based on the total weight of the cosmetic composition, be contained.

In order to improve the care effect and the conditioning performance of the cosmetic compositions according to the invention, they may additionally contain a cosmetic oil, for example a silicone oil and / or a non-silicone oil. Silicone oils are preferably dialkyl and alkylaryl siloxanes such as cyclopentasiloxane, cyclohexasiloxane, dimethylpolysiloxane and methylphenylpolysiloxane, hexamethyldisiloxane, octamethyltrisiloxane and decamethyltetrasiloxane. Preferred non-silicone oils are selected from the group of triethyl citrate, isopropyl myristate, C ₁₆ -C ₁₈ alkyl ester, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, cetyl oleate, glycerol tricaprylate, n-butyl stearate, oleyl erucate, isopropyl palmitate, oleyl oleate, bile acid, di-n butyl adipate, myristyl myristate, cetearyl isononanoate, oleic acid decyl ester and mixtures thereof. It is preferred in the context of the present invention if the cosmetic agent additionally contains at least one oil in a total amount of from 0.01 to 0.5% by weight, preferably from 0.02 to 0.3% by weight, preferably from 0 , 03 to 0.2 wt .-%, in particular from 0.04 to 0.1 wt .-%, based on the total weight of the cosmetic composition contains.

In addition, the use of nonionic and amphoteric surfactants has proven to be advantageous in terms of increasing storage stability. The use of such surfactants avoids phase separation of the ingredients and thus ensures high storage stability and good foamability of the cosmetic compositions according to the invention. Particular preference is given to using certain nonionic surfactants in the cosmetic compositions according to the invention. It is therefore preferred in the context of the present invention if the cosmetic agents additionally comprise at least one nonionic surfactant selected from the group of C ₈ -C ₃₀ -alcohols and / or C ₈ -C ₃₀ -carboxylic acids with in each case 2 to 100 mol of ethylene oxide per Mol of alcohol or carboxylic acid, C ₁₂ -C ₃₀ -carboxylic acid mono- and diesters of addition products of 1 to 30 moles of ethylene oxide with glycerol, addition products of 5 to 60 moles of ethylene oxide with castor oil and hydrogenated castor oil, in particular addition products of 5 to 60 moles of ethylene oxide with castor oil and hardened castor oil in a total amount, based on their total weight, of from 0.01 to 5.0% by weight %, preferably from 0.1 to 4.0 wt .-%, preferably from 0.1 to 3.0 wt .-%, in particular from 0.2 to 1.0 wt .-%, contain.

The amphoteric surfactants are subdivided into ampholytic surfactants and zwitterionic surfactants. Ampholytic surfactants are understood as meaning those surface-active compounds which have both acidic (for example -COOH or -SO ₃ H groups) and basic hydrophilic groups (for example amino groups) and thus behave acidic or basic depending on the condition. Zwitterionic surfactants are understood by the person skilled in the art to be surfactants which carry both a negative and a positive charge in the same molecule. According to the invention, the use of certain amphoteric surfactants has proven advantageous. Preferred amphoteric surfactants are selected from the group of C ₁₀ -C ₁₈ alkyl betaines, C _8-12 alkylamido (C _1-4 ) alkyl betaines, C ₁₀ -C ₁₈ alkyl sulfobetaines, C ₁₀ -C ₁₈ alkyl amphoacetates and amphodiacetates , C ₁₀ -C ₁₈ -Alkylamphopropionaten and -dipropionaten, and mixtures thereof. The amphoteric surfactants may be present in the cosmetic compositions in a total amount, based on the total weight of the cosmetic agent, of from 0.01 to 5.0% by weight, preferably from 0.1 to 4.0% by weight, preferably from 0 , 1 to 3.0 wt .-%, in particular from 0.2 to 1.0 wt .-%, be contained.

In the following, particularly preferred embodiments AF1 to AF64 of the cosmetic compositions according to the invention are indicated (all statements in percent by weight, aqueous PuD = aqueous dispersion containing at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer): AF1 AF2 AF3 AF4 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF5 AF6 AF7 AF8 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF9 AF10 AF11 AF12 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Propellant ³⁾ 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF13 AF14 AF15 AF16 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Propellant ³⁾ 25-75 35-70 35-60 35-55 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF17 AF18 AF19 AF20 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic polymer 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF21 AF22 AF23 AF24 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF25 AF26 AF27 AF28 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic polymer 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF29 AF30 AF31 AF32 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 25-75 35-70 35 - 60 35-55 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF33 AF34 AF35 AF36 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF37 AF38 AF39 AF40 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF41 AF42 AF43 AF44 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF45 AF46 af47 AF48 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 25-75 35-70 35-60 35-55 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF49 AF50 AF51 AF52 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Propellant ³⁾ 25-75 35-70 35 - 60 35-55 Nonionic surfactant ⁵⁾ 0.01-5.0 0.1-4.0 0.1-3.0 0.2-1.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF53 AF54 AF55 AF56 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 25-75 35-70 35-60 35-55 Nonionic surfactant ⁵⁾ 0.01-5.0 0.1-4.0 0.1-3.0 0.2-1.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF57 AF58 AF59 AF60 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 propellant 0.5 to 9.5 2.0 to 9.0 4.0-8.5 5.0-8.0 Nonionic surfactant ⁵⁾ 0.01-5.0 0.1-4.0 0.1-3.0 0.2-1.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 AF61 AF62 AF63 AF64 Aqueous powder 0.5-10 1.0 to 9.5 2.0 to 9.0 3.0-8.0 Cationic surfactant ²⁾ 0.1-2.0 0.2-1.5 0.3-1.0 0.4-0.6 Cationic polymer ⁴⁾ 0.05-2.5 0.1-2.0 0.2-1.5 0.3-1.0 Propellant ³⁾ 25-75 35-70 35-60 35-55 Nonionic surfactant ⁵⁾ 0.01-5.0 0.1-4.0 0.1-3.0 0.2-1.0 Cosmetic Carrier ¹⁾ Ad 100 Ad 100 Ad 100 Ad 100 ¹⁾ aqueous carrier containing at least 50% by weight, based on the total weight of the composition, of water,
²⁾ mixture of C ₁₆ -alkyltrimethylammonium chloride and C ₁₈ -alkyltri [2- (2-hydroxyethoxy) ethyl] -ammonium phosphate,
³⁾ mixture of propane and butane,
⁴⁾ copolymer of hydroxyethylcellulose with dimethyldiallylammonium chloride,
⁵⁾ nonionic surfactant selected from C ₈ -C ₃₀ -alcohols and / or C ₈ -C ₃₀ -carboxylic acids with in each case 2 to 100 mol of ethylene oxide per mole of alcohol or carboxylic acid and / or
Addition products of 5 to 60 moles of ethylene oxide with castor oil and hydrogenated castor oil

The above-mentioned, particularly preferred embodiments AF1 to AF64 each contain, as aqueous PuD, the PuD1 to PuD11 indicated in the table below. The columns "diene-containing polyurethane polymer" and "dienophile-containing polyurethane polymer" indicate the components of the respective polyurethane polymer. All amounts are given in wt .-% and each relate to the total weight of the corresponding polyurethane polymer. Diene-containing polyurethane polymer Dienophile-containing polyurethane polymer PuD1 Polyurethane compound of formula (I), diene compound of formula (II), polyether compound of formula (III) Polyurethane compound of formula (I), dienophile compound of formula (IV), polyether compound of formula (III) PuD2 Polyurethane compound of formula (I), diene compound of formula (IIa), polyether compound of formula (III) Polyurethane compound of formula (I), dienophile compound of formula (IVa), polyether compound of formula (III) PuD3 Polyurethane compound of formula (I), 1.5 to 2.5% by weight of diene compound of formula (IIa), polyether compound of formula (III) Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), polyether compound of formula (III) PuD4 Polyurethane formula (I), diene formula (IIa), polyether compound formula (IIIa) Polyurethane formula (I), dienophile formula (IVa), polyether compound formula (IIIa) PuD5 Polyurethane compound of formula (I), 1.5 to 2.5% by weight of diene compound of formula (IIa), polyether compound of formula (IIIa) Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), polyether compound of formula (IIIa) PuD6 Polyurethane compound of formula (I), diene compound of formula (IIa), polyether compound of formula (III), polyether compound of formula (V) Polyurethane compound of formula (I), dienophile compound of formula (IVa), polyether compound of formula (III), polyether compound of formula (V) PuD7 Polyurethane compound of formula (I), 1.5 to 2.5% by weight of diene compound of formula (IIa), polyether compound of formula (III), polyether compound of formula (V) Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), polyether compound of formula (III), polyether compound of formula (V) PuD8 Polyurethane compound of formula (I), diene compound of formula (IIa), polyether compound of formula (IIIa), polyether compound of formula (V) Polyurethane compound of formula (I), dienophile compound of formula (IVa), polyether compound of formula (IIIa), polyether compound of formula (V) PuD9 Polyurethane compound of formula (I), 1.5 to 2.5% by weight of diene compound of formula (IIa), polyether compound of formula (IIIa), polyether compound of formula (V) Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), polyether compound of formula (IIIa), polyether compound of formula (V) PuD10 Polyurethane compound of formula (I), diene compound of formula (IIa), polyether compound of formula (IIIa), polyether compound of formula (V), homopolymer of polypropylene glycol Polyurethane compound of formula (I), dienophile compound of formula (IVa), polyether compound of formula (IIIa), polyether compound of formula (V), homopolymer of polypropylene glycol PuD11 Polyurethane compound of formula (I), 1.5 to 2.5% by weight of diene compound of formula (IIa), polyether compound of formula (IIIa), polyether compound of formula (V), homopolymer of polypropylene glycol Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), polyether compound of formula (IIIa), polyether compound of formula (V), homopolymer of polypropylene glycol PuD11 Polyurethane compound, formula (I), 1.5 to 2.5% by weight of diene compound, formula (IIa), 3.5 to 4.5% by weight of polyether compound, formula (IIIa), 3.5 to 4.5% by weight % Polyether compound Formula (V), 75 to 85 wt% homopolymer polypropylene glycol Polyurethane compound of formula (I), 1.0 to 2.0% by weight of dienophile compound of formula (IVa), 3.5 to 4.5% by weight of polyether compound of formula (IIIa), 3.5 to 4.5% by weight % Polyether compound Formula (V), 75 to 85 wt% homopolymer polypropylene glycol

The diene- and dienophile-containing polyurethane polymers of PuD10 to 12 have an average molecular weight M _w of 20,000 to 35,000 g / mol (measured by GPC). Further, the PuD3 to PuD11 have a weight ratio of the diene-containing polyurethane polymer to the dienophile-containing polyurethane polymer of 2: 1 to 1: 2. All previously mentioned PuD1 to PuD11 preferably have an average particle size D ₅₀ of 100 to 400 nm (measured by means of laser diffraction LD).

The above-mentioned, particularly preferred embodiments of the cosmetic compositions according to the invention have a high hairstyle hold, in particular a high stiffness of the hairstyle, and lead to an improved moisture resistance of the hairstyles formed by these means. The improved hairstyle hold and the moisture resistance of the hairstyle is - without wishing to be limited to this theory - achieved by the crosslinking of the polyurethane polymers by means of a Diels-Alder reaction between the diene and the dienophile of the polyurethane polymers during the drying of the cosmetic products. The Diels-Alder reaction between the dienophile and dienophile-containing polyurethane polymer can be reversed by using temperatures between 70 and 100 ° C, such that by heating the once-formed hairstyle, remodeling this hairstyle into a new hairstyle and renewing Cooling can make a different hairstyle without having to wash out the cosmetic product before or apply again cosmetic product.

Another object of the present invention is a method for temporary deformation, in particular remodeling temporary deformation, keratinic fibers, wherein a cosmetic agent according to the invention applied to the keratinic fibers and these are then brought into the desired shape. Under remodellable deformation is understood according to the invention the design of a new hairstyle without re-applying the cosmetic composition according to the invention or previous rinsing and re-application of the cosmetic product.

With regard to further preferred embodiments of the method according to the invention, in particular with regard to the cosmetic agents used there, mutatis mutandis applies to the said cosmetic agents according to the invention.

• a) mindestens eine wässrige Dispersion, umfassend mindestens eine Dien-haltiges Polyurethanpolymer und mindestens ein Dienophil-haltiges Polyurethanpolymer und
• b) mindestens eine kationische Verbindung, ausgewählt aus der Gruppe von kationischen Tensiden, kationischen Polymeren sowie deren Mischungen und
• c) 0,1 bis 10 Gew.-% mindestens eines Treibmittels

zur Verbesserung des Langzeithalts der mit diesen Mitteln geformten keratinischen Fasern, zur Erhöhung der Beständigkeit der mit diesen Mitteln erzielten Frisur sowie zur Erzielung einer remodellierbaren Frisur. Finally, a further object of the present invention is the use of cosmetic compositions containing in a cosmetically acceptable carrier and by weight

• a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and
• b) at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof and
• c) 0.1 to 10 wt .-% of at least one blowing agent

to improve the long-term maintenance of the keratinic fibers formed by these agents, to increase the durability of the hairstyle obtained with these agents, and to achieve a remodeling hairstyle.

With regard to further preferred embodiments of the uses according to the invention, the statements made on the cosmetic agents according to the invention and the method according to the invention apply mutatis mutandis.

• 1. Kosmetisches Mittel zur temporären Verformung keratinischer Fasern, enthaltend in einem kosmetisch verträglichen Träger und bezogen auf sein Gesamtgewicht – a) mindestens eine wässrigen Dispersion, umfassend mindestens ein Dien-haltiges Polyurethanpolymer und mindestens ein Dienophil-haltiges Polyurethanpolymer und b) mindestens eine kationische Verbindung, ausgewählt aus der Gruppe von kationischen Tensiden, kationischen Polymeren sowie deren Mischungen und c) 0,1 bis 10 Gew.-% mindestens eines Treibmittels.
• 2. Kosmetisches Mittel nach Punkt 1, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer mindestens eine Polyurethanverbindung der Formel (I) und mindestens eine Dienverbindung der Formel (II) und mindestens eine ionische Polyetherverbindung der Formel (III)
  
  worin R₁ bis R₃, jeweils unabhängig voneinander, für eine lineare oder verzweigte C₁-C₄-Alkylgruppe, insbesondere eine lineare C₁-C₂-Alkylgruppe, stehen, a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 6, insbesondere von 1 bis 4, stehen und X⁺ für ein physiologisch verträgliches Kation, insbesondere Natrium, steht, enthält.
• 3. Kosmetisches Mittel nach Punkt 2, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer mindestens eine Dienverbindung der Formel (IIa)
  
  enthält.
• 4. Kosmetisches Mittel nach einem der Punkte 2 oder 3, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer die mindestens eine Dienverbindung der Formel (II), insbesondere der Formel (IIa) – bezogen auf sein Gesamtgewicht – in einer Gesamtmenge von 0,2 bis 5,0 Gew.-%, vorzugsweise von 0,5 bis 4,0 Gew.-%, bevorzugt von 1,0 bis 3,0 Gew.-%, insbesondere von 1,5 bis 2,5 Gew.-%, enthält.
• 5. Kosmetisches Mittel nach Punkt 1, dadurch gekennzeichnet, dass das mindestens eine Dienophil-haltige Polyurethanpolymer mindestens eine Polyurethanverbindung der Formel (I) und mindestens eine Dienophilverbindung der Formel (IV) und mindestens eine ionische Polyetherverbindung der Formel (III)
  
  worin R₂ bis R₄, jeweils unabhängig voneinander, für eine lineare oder verzweigte C₁-C₄-Alkylgruppe, insbesondere eine lineare C₁-C₂-Alkylgruppe, stehen, a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 6, insbesondere von 1 bis 4, stehen und X⁺ für ein physiologisch verträgliches Kation, insbesondere Natrium, steht, enthält.
• 6. Kosmetisches Mittel nach Punkt 5, dadurch gekennzeichnet, dass das mindestens eine Dienophil-haltige Polyurethanpolymer mindestens eine Dienophilverbindung der Formel (IVa)
  
  enthält.
• 7. Kosmetisches Mittel nach einem der Punkte 5 oder 6, dadurch gekennzeichnet, dass das mindestens eine Dienophil-haltige Polyurethanpolymer die mindestens eine Dienophilverbindung der Formel (IV), insbesondere der Formel (IVa) – bezogen auf sein Gesamtgewicht – in einer Gesamtmenge von 0,2 bis 5,0 Gew.-%, vorzugsweise von 0,5 bis 4,0 Gew.-%, bevorzugt von 0,8 bis 2,5 Gew.-%, insbesondere von 1,0 bis 2,0 Gew.-%, enthält.
• 8. Kosmetisches Mittel nach einem der Punkte 2 bis 7, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer mindestens eine ionische Polyetherverbindung der Formel (IIIa)
  
  worin a und b, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 4 stehen und X⁺ für Natrium steht, enthält.
• 9. Kosmetisches Mittel nach einem der Punkte 2 bis 8, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und das mindestens eine Dienophil-haltige Polyurethanpolymer die mindestens eine Polyurethanverbindung der Formel (I) – jeweils bezogen auf ihr Gesamtgewicht – jeweils in einer Gesamtmenge von 4,0 bis 30 Gew.-%, vorzugsweise von 5,0 bis 25 Gew.-%, bevorzugt von 8,0 bis 20 Gew.-%, insbesondere von 10 bis 15 Gew.-%, enthält.
• 10. Kosmetisches Mittel nach einem der Punkte 2 bis 9, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und das mindestens eine Dienophil-haltige Polyurethanpolymer die mindestens eine ionische Polyetherverbindung der Formel (III), insbesondere der Formel (IIIa) – jeweils bezogen auf ihr Gesamtgewicht – jeweils in einer Gesamtmenge von 2,0 bis 7,0 Gew.-%, vorzugsweise von 2,5 bis 6,0 Gew.-%, bevorzugt von 3,0 bis 5,0 Gew.-%, insbesondere von 3,5 bis 4,5 Gew.-%, enthält.
• 11. Kosmetisches Mittel nach einem der Punkte 2 bis 10, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer zusätzlich mindestens eine nichtionische Polyetherverbindung der Formel (V)
  
  worin R₅ und R₆, jeweils unabhängig voneinander, für Wasserstoff oder eine lineare C₁-C₄-Alkylgruppe, insbesondere für Wasserstoff oder eine lineare C₁-C₂-Alkylgruppe, stehen, wobei mindestens einer der Reste R₅ oder R₆ für eine lineare C₁-C₄-Alkylgruppe, steht und c, d und e, jeweils unabhängig voneinander, für ganze Zahlen von 1 bis 60, bevorzugt von 1 bis 40, stehen enthält.
• 12. Kosmetisches Mittel nach Punkt 11, dadurch gekennzeichnet, dass die mindestens eine nichtionische Polyetherverbindung der Formel (V) eine zahlenmittlere Molmasse Mn von 500 bis 5.000 g/mol, vorzugsweise von 800 bis 4.000 g/mol, bevorzugt von 1.000 bis 3.000 g/mol, insbesondere von 1.800 bis 2.100 g/mol, aufweist.
• 13. Kosmetisches Mittel nach einem der Punkte 11 oder 12, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer die mindestens eine nichtionische Polyetherverbindung der Formel (V) – jeweils bezogen auf ihr Gesamtgewicht – jeweils in einer Gesamtmenge von 2,0 bis 7,0 Gew.-%, vorzugsweise von 2,5 bis 6,0 Gew.-%, bevorzugt von 3,0 bis 5,0 Gew.-%, insbesondere von 3,5 bis 4,5 Gew.-%, enthält.
• 14. Kosmetisches Mittel nach einem der Punkte 11 bis 13, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer ein Gewichtsverhältnis der mindestens einen ionischen Polyetherverbindung der Formel (III), insbesondere der Formel (IIIa), zu der mindestens einen nichtionischen Polyetherverbindung der Formel (V) von 40:1 bis 5:1, vorzugsweise von 35:1 bis 10:1, insbesondere von 25:1 bis 15:1, aufweist.
• 15. Kosmetisches Mittel nach einem der Punkte 2 bis 14, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer zusätzlich mindestens eine nichtionische Polyetherverbindung, ausgewählt aus der Gruppe von Homopolymeren von Ethylenoxid, Propylenoxid und Butylenoxid, insbesondere Homopolymeren von Propylenoxid, enthält.
• 16. Kosmetisches Mittel nach Punkt 15, dadurch gekennzeichnet, dass die mindestens eine nichtionische Polyetherverbindung, insbesondere das Homopolymer von Propylenoxid, eine zahlenmittlere Molmasse Mn von 500 bis 5.000 g/mol, vorzugsweise von 800 bis 4.000 g/mol, bevorzugt von 1.000 bis 3.000 g/mol, insbesondere von 1.800 bis 2.100 g/mol, aufweist.
• 17. Kosmetisches Mittel nach einem der Punkte 15 oder 16, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und/oder das mindestens eine Dienophil-haltige Polyurethanpolymer die mindestens ein nichtionische Polyetherverbindung, insbesondere das Homopolymer von Propylenglycol – jeweils bezogen auf ihr Gesamtgewicht – jeweils in einer Gesamtmenge von 65 bis 90 Gew.-%, vorzugsweise von 68 bis 87 Gew.-%, bevorzugt von 70 bis 85 Gew.-%, insbesondere von 75 bis 80 Gew.-%, enthält.
• 18. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass das mindestens eine Dien-haltige Polyurethanpolymer und das mindestens eine Dienophil-haltige Polyurethanpolymer jeweils ein mittleres Molekulargewicht M_w von 2.500 bis 50.000 g/mol, vorzugsweise von 5.000 bis 45.000 g/mol, bevorzugt von 10.000 bis 40.000 g/mol, insbesondere von 20.000 bis 35.000 g/mol, aufweisen.
• 19. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die wässrige Dispersion eine mittlere Teilchengröße D₅₀ von 50 bis 1.000 nm, vorzugsweise von 50 bis 500 nm, insbesondere von 100 bis 400 nm, aufweist.
• 20. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die wässrige Dispersion einen Feststoffgehalt – bezogen auf das Gesamtgewicht der Dispersion, von 5 bis 68 Gew.-%, vorzugsweise von 10 bis 60 Gew.-%, bevorzugt von 10 bis 55 Gew.-%, insbesondere von 10 bis 50 Gew.-%, aufweist.
• 21. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass die wässrige Dispersion ein Gewichtsverhältnis des mindestens einen Dien-haltigen Polyurethanpolymers zu dem mindestens einen Dienophil-haltigen Polyurethanpolymer von 6:1 bis 1:6, vorzugsweise von 5:1 bis 1:5, bevorzugt von 4:1 bis 1:4, insbesondere von 2:1 bis 1:2, aufweist.
• 22. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es – bezogen auf sein Gesamtgewicht – 0,5 bis 10 Gew.-%, vorzugsweise 1,0 bis 9,5 Gew.-%, bevorzugt 2,0 bis 9,0 Gew.-%, insbesondere 3,0 bis 8,0 Gew.-%, einer wässrigen Dispersion, umfassend mindestens ein Dien-haltiges Polyurethanpolymer und mindestens ein Dienophil-haltiges Polyurethanpolymer, enthält.
• 23. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es mindestens ein kationisches Tensid, ausgewählt aus der Gruppe von quaternären Alkyltrimethylammoniumhalogeniden, quaternären Alkyltri(2-hydroxyethoxy)alkyl-ammoniumphosphaten, sowie deren Mischungen, insbesondere Mischungen von C₁₆-Alkyltrimethylammoniumchlorid und C₁₈-Alkyltri[2-(2-hydroxyethoxy)ethyl]-ammoniumphosphat, enthält.
• 24. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es – bezogen auf sein Gesamtgewicht – 0,1 bis 2,0 Gew.-%, vorzugsweise 0,2 bis 1,5 Gew.-%, bevorzugt 0,3 bis 1,0 Gew.-%, insbesondere 0,4 bis 0,6 Gew.-%, mindestens eines kationischen Tensids, insbesondere einer Mischung aus C₁₆-Alkyltrimethylammoniumchlorid und C₁₈-Alkyltri[2-(2-hydroxyethoxy)ethyl]-ammoniumphosphat, enthält.
• 25. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es mindestens ein kationisches Polymer, ausgewählt aus der Gruppe von Copolymeren von Vinylpyrrolidon mit quaternierten Dialkylaminoalkylacrylaten oder -methacrylaten, kationischen Hydroxyethylcellulosen, Methylvinylimidazoliumchlorid/Vinylpyrrolidon Copolymeren, Chitosanen sowie deren Mischungen, insbesondere Copolymere von Hydroxyethylcellulose mit Dimethyldiallylammoniumchlorid, enthält.
• 26. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es – bezogen auf sein Gesamtgewicht – 0,05 bis 2,5 Gew.-%, vorzugsweise 0,1 bis 2,0 Gew.-%, bevorzugt 0,2 bis 1,5 Gew.-%, insbesondere 0,3 bis 1,0 Gew.-%, mindestens eines kationischen Polymers, insbesondere Copolymere von Hydroxyethylcellulose mit Dimethyldiallylammoniumchlorid, enthält.
• 27. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es mindestens ein Treibmittel, ausgewählt aus der Gruppe von Dimethylether, CO₂, Luft, Propan, n-Butan, iso-Butan, n-Pentan, iso-Pentan sowie deren Mischungen, insbesondere eine Mischung aus Propan und n-Butan, enthält.
• 28. Kosmetisches Mittel nach einem der vorangehenden Punkte, dadurch gekennzeichnet, dass es – bezogen auf sein Gesamtgewicht – 0,5 bis 9,5 Gew.-%, vorzugsweise 2,0 bis 9,0 Gew.-%, bevorzugt 4,0 bis 8,5 Gew.-%, insbesondere 5,0 bis 8,0 Gew.-%, mindestens eines Treibmittels, insbesondere eine Mischung aus Propan und n-Butan, enthält.
• 29. Verfahren zur temporären Verformung, insbesondere remodellierbaren temporären Verformung, keratinischer Fasern, wobei ein kosmetisches Mittel nach einem der Punkte 1 bis 28 auf die keratinischen Fasern appliziert und diese anschließend in die gewünschte Form gebracht werden.
• 30. Verwendung von kosmetischen Mitteln, enthaltend in einem kosmetisch verträglichen Träger und bezogen auf ihr Gewicht a) mindestens eine wässrige Dispersion, umfassend mindestens eine Dien-haltiges Polyurethanpolymer und mindestens ein Dienophil-haltiges Polyurethanpolymer und b) mindestens eine kationische Verbindung, ausgewählt aus der Gruppe von kationischen Tensiden, kationischen Polymeren sowie deren Mischungen und c) 0,1 bis 10 Gew.-% mindestens eines Treibmittels zur Verbesserung des Langzeithalts der mit diesen Mitteln geformten keratinischen Fasern, zur Erhöhung der Beständigkeit der mit diesen Mitteln erzielten Frisur sowie zur Erzielung einer remodellierbaren Frisur.

The present invention is outlined in particular by the following points:

• 1. A cosmetic composition for temporary deformation of keratinous fibers, containing in a cosmetically acceptable carrier and based on its total weight - a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and b) at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof and c) from 0.1 to 10% by weight of at least one blowing agent.
• 2. Cosmetic composition according to item 1, characterized in that the at least one diene-containing polyurethane polymer at least one polyurethane compound of the formula (I) and at least one diene compound of the formula (II) and at least one ionic polyether compound of the formula (III)
  
  wherein R ₁ to R ₃ , each independently of one another, are a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a and b, each independently of one another, are integers of 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium, contains.
• 3. Cosmetic composition according to item 2, characterized in that the at least one diene-containing polyurethane polymer at least one diene compound of the formula (IIa)
  
  contains.
• 4. Cosmetic composition according to one of the items 2 or 3, characterized in that the at least one diene-containing polyurethane polymer, the at least one diene compound of formula (II), in particular of formula (IIa) - based on its total weight - in a total amount of 0 From 2 to 5.0% by weight, preferably from 0.5 to 4.0% by weight, preferably from 1.0 to 3.0% by weight, in particular from 1.5 to 2.5% by weight. -%, contains.
• 5. Cosmetic composition according to item 1, characterized in that the at least one dienophile-containing polyurethane polymer at least one polyurethane compound of the formula (I) and at least one dienophile compound of the formula (IV) and at least one ionic polyether compound of the formula (III)
  
  wherein R ₂ to R ₄ , each independently of one another, are a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a and b, each independently of one another, are integers of 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium, contains.
• 6. Cosmetic composition according to item 5, characterized in that the at least one dienophile-containing polyurethane polymer at least one dienophile compound of the formula (IVa)
  
  contains.
• 7. Cosmetic composition according to one of the items 5 or 6, characterized in that the at least one dienophile-containing polyurethane polymer, the at least one dienophile compound of formula (IV), in particular of formula (IVa) - based on its total weight - in a total amount of 0 From 2 to 5.0% by weight, preferably from 0.5 to 4.0% by weight, preferably from 0.8 to 2.5% by weight, in particular from 1.0 to 2.0% by weight. -%, contains.
• 8. Cosmetic agent according to one of the items 2 to 7, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer at least one ionic polyether compound of the formula (IIIa)
  
  wherein a and b, each independently, are integers from 1 to 4 and X ^{+ is} sodium.
• 9. Cosmetic composition according to one of the items 2 to 8, characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer, the at least one polyurethane compound of formula (I) - each based on their total weight - each in a Total amount of 4.0 to 30 wt .-%, preferably from 5.0 to 25 wt .-%, preferably from 8.0 to 20 wt .-%, in particular from 10 to 15 wt .-%, contains.
• 10. Cosmetic agent according to one of the items 2 to 9, characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer containing at least one ionic polyether compound of the formula (III), in particular of the formula (IIIa) - respectively based on their total weight - in a total amount of 2.0 to 7.0 wt .-%, preferably from 2.5 to 6.0 wt .-%, preferably from 3.0 to 5.0 wt .-%, in particular from 3.5 to 4.5% by weight.
• 11. Cosmetic composition according to one of the items 2 to 10, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer additionally comprises at least one nonionic polyether compound of the formula (V)
  
  wherein R ₅ and R ₆ , each independently of one another, are hydrogen or a linear C ₁ -C ₄ -alkyl group, in particular hydrogen or a linear C ₁ -C ₂ -alkyl group, where at least one of the radicals R ₅ or R ₆ is a linear C ₁ -C ₄ -alkyl group, and c, d and e, each independently of one another, are integers from 1 to 60, preferably from 1 to 40, containing.
• 12. Cosmetic composition according to item 11, characterized in that the at least one nonionic polyether compound of the formula (V) has a number average molecular weight Mn of from 500 to 5,000 g / mol, preferably from 800 to 4,000 g / mol, preferably from 1,000 to 3,000 g / mol, in particular from 1,800 to 2,100 g / mol.
• 13. Cosmetic composition according to one of the items 11 or 12, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer containing at least one nonionic polyether compound of the formula (V) - in each case based on their total weight - each in a total amount of from 2.0 to 7.0% by weight, preferably from 2.5 to 6.0% by weight, preferably from 3.0 to 5.0% by weight, especially from 3.5 to 4.5 wt .-%, contains.
• 14. Cosmetic agent according to one of items 11 to 13, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer has a weight ratio of the at least one ionic polyether compound of the formula (III), in particular of the formula ( IIIa) to which at least one nonionic polyether compound of the formula (V) has from 40: 1 to 5: 1, preferably from 35: 1 to 10: 1, in particular from 25: 1 to 15: 1.
• 15. Cosmetic agent according to one of the items 2 to 14, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer additionally comprises at least one nonionic polyether compound selected from the group of homopolymers of ethylene oxide, propylene oxide and Butylene oxide, in particular homopolymers of propylene oxide contains.
• 16. A cosmetic composition according to item 15, characterized in that the at least one nonionic polyether compound, in particular the homopolymer of propylene oxide, a number average molecular weight Mn of 500 to 5,000 g / mol, preferably from 800 to 4,000 g / mol, preferably from 1,000 to 3,000 g / mol, in particular from 1,800 to 2,100 g / mol.
• 17. Cosmetic composition according to one of the items 15 or 16, characterized in that the at least one diene-containing polyurethane polymer and / or the at least one dienophile-containing polyurethane polymer the at least one nonionic polyether compound, in particular the homopolymer of propylene glycol - in each case based on their total weight - in a total amount of 65 to 90 wt .-%, preferably from 68 to 87 wt .-%, preferably from 70 to 85 wt .-% , in particular from 75 to 80 wt .-%, contains.
• 18. Cosmetic agent according to one of the preceding points, characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer each have an average molecular weight M _{w of} from 2,500 to 50,000 g / mol, preferably from 5,000 to 45,000 g / mol, preferably from 10,000 to 40,000 g / mol, in particular from 20,000 to 35,000 g / mol.
• 19. Cosmetic composition according to one of the preceding points, characterized in that the aqueous dispersion has an average particle size D ₅₀ of 50 to 1000 nm, preferably from 50 to 500 nm, in particular from 100 to 400 nm.
• 20. Cosmetic composition according to one of the preceding points, characterized in that the aqueous dispersion has a solids content - based on the total weight of the dispersion, from 5 to 68 wt .-%, preferably from 10 to 60 wt .-%, preferably from 10 to 55 wt .-%, in particular from 10 to 50 wt .-%, having.
• 21. Cosmetic composition according to one of the preceding points, characterized in that the aqueous dispersion has a weight ratio of the at least one diene-containing polyurethane polymer to the at least one dienophile-containing polyurethane polymer of 6: 1 to 1: 6, preferably from 5: 1 to 1 : 5, preferably from 4: 1 to 1: 4, in particular from 2: 1 to 1: 2, having.
• 22. Cosmetic composition according to one of the preceding points, characterized in that it - based on its total weight - 0.5 to 10 wt .-%, preferably 1.0 to 9.5 wt .-%, preferably 2.0 to 9 , 0 wt .-%, in particular 3.0 to 8.0 wt .-%, of an aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer contains.
• 23. Cosmetic composition according to one of the preceding points, characterized in that it comprises at least one cationic surfactant selected from the group of quaternary alkyltrimethylammonium halides, quaternary alkyltri (2-hydroxyethoxy) alkyl-ammonium phosphates, and mixtures thereof, in particular mixtures of C ₁₆ -alkyltrimethylammonium chloride and C ₁₈ alkyl tri [2- (2-hydroxyethoxy) ethyl] ammonium phosphate.
• 24. Cosmetic composition according to one of the preceding points, characterized in that it - based on its total weight - 0.1 to 2.0 wt .-%, preferably 0.2 to 1.5 wt .-%, preferably 0.3 to 1.0% by weight, in particular 0.4 to 0.6% by weight, of at least one cationic surfactant, in particular a mixture of C ₁₆ -alkyltrimethylammonium chloride and C ₁₈ -alkyltri [2- (2-hydroxyethoxy) ethyl] ammonium phosphate.
• 25. Cosmetic composition according to one of the preceding points, characterized in that it comprises at least one cationic polymer selected from the group of copolymers of vinylpyrrolidone with quaternized dialkylaminoalkyl acrylates or methacrylates, cationic hydroxyethylcelluloses, methylvinylimidazolium chloride / vinylpyrrolidone copolymers, chitosans and mixtures thereof, in particular copolymers of hydroxyethylcellulose with dimethyldiallylammonium chloride.
• 26. Cosmetic composition according to one of the preceding points, characterized in that it - based on its total weight - 0.05 to 2.5 wt .-%, preferably 0.1 to 2.0 wt .-%, preferably 0.2 to 1.5% by weight, in particular 0.3 to 1.0% by weight, of at least one cationic polymer, in particular copolymers of hydroxyethylcellulose with dimethyldiallylammonium chloride.
• 27. Cosmetic composition according to one of the preceding points, characterized in that it comprises at least one blowing agent selected from the group of dimethyl ether, CO ₂ , air, propane, n-butane, isobutane, n-pentane, iso-pentane and their Mixtures, in particular a mixture of propane and n-butane.
• 28. Cosmetic composition according to one of the preceding points, characterized in that it - based on its total weight - 0.5 to 9.5 wt .-%, preferably 2.0 to 9.0 wt .-%, preferably 4.0 to 8.5% by weight, in particular 5.0 to 8.0% by weight, of at least one propellant, in particular a mixture of propane and n-butane.
• 29. A method for temporary deformation, in particular remodeling temporary deformation, keratinic fibers, wherein a cosmetic agent according to any one of items 1 to 28 applied to the keratinic fibers and these are then brought into the desired shape.
• 30. Use of cosmetic compositions containing in a cosmetically acceptable vehicle and by weight a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and b) at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof and c) from 0.1 to 10% by weight of at least one propellant to improve the long-term content of the keratinic fibers formed with these agents, to increase the Consistency of the hairstyle achieved with these means and to achieve a remodeling hairstyle.

The following examples illustrate the present invention without, however, limiting it to:

Examples:

1. Preparation of the aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer

1.1 Preparation of the diene-containing polyurethane polymer

8.00 g of an ionic polyether polyol having a number average molecular weight Mn of 425 g / mol (corresponding to ionic polyether compound of the formula (IIIa)), 8.00 g of a nonionic polyether polyol having a number average molecular weight Mn of 1941 g / mol (corresponds to nonionic polyether compound of Formula (V)) and 157 g of a nonionic homopolymer of propylene oxide having a number average molecular weight Mn of 2,000 g / mol were melted at 80 ° C and dried for 1 hour under vacuum (p <0.1 mbar) to remove residual water , The flask was flooded with nitrogen and cooled to 70 ° C. Subsequently, isophorone diisocyanate (26.3 g, 118 mmol) and a catalyst (Fomrez UL-28, 30 μl, Momentive Performance Materials Germany) were added and the reaction was carried out after an initial increase in temperature at 80 ° C. The NCO content of the polyurethane prepolymer was measured every half hour by back titration ISO 11909: 2007-05 certainly. After reaching the theoretical value of 0.7%, a 2.5-fold excess of furfuryl alcohol (corresponding to the diene compound of the formula (IIa)), based on free NCO groups of the polyurethane prepolymer, was added. The diene-containing polyurethane polymer prepared in this way has an average molecular weight M _w of 25,100 g / mol (determined by GPC according to US Pat DIN 55672-2: 2008-06 ).

1.2 Preparation of the dienophile-containing polyurethane polymer

The preparation of the dienophile-containing polyurethane polymer is carried out analogously to the method described in Section 1.1, but instead of the furfuryl alcohol, a 2.5-fold excess of N- (2-hydroxyethyl) maleimide (corresponding dienophile compound of the formula (IVa)), based on free NCO groups of the polyurethane prepolymer added. The dienophile-containing polyurethane polymer prepared in this way has an average molecular weight M _w of 28,300 g / mol (determined by GPC according to US Pat DIN 55672-2: 2008-06 ).

1.3 Preparation of the aqueous dispersion containing at least one diene-containing

Polyurethane polymer and at least one dienophile-containing polyurethane polymer The diene- and dienophile-containing polyurethane polymers previously obtained were each dissolved in dried acetone in a weight ratio of 1: 1. Each solution was then each dispersed in water using an UltraTurrax T25 (IKA) (11,000 rpm, 3 minutes) and then at 40 ° C through a Microfluidizer M-100Y (Microfluidics, 11,000 psi, 4 passages, chamber configuration H210Z and H230Z). directed. The acetone was removed from the two dispersions using a rotary evaporator at elevated temperature and reduced pressure. The dispersions obtained each had an average particle size D ₅₀ of 245 nm (measured by laser diffraction LD) and a solids content of 16.4% (aqueous dispersion of diene-containing polyurethane polymer) or of 15.6% (aqueous dispersion of dienophile-containing polyurethane polymer). on. The aqueous dispersion containing at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer is obtained by combining the above-prepared aqueous dispersion of the diene-containing polyurethane polymer with the aqueous dispersion of the dienophile-containing polyurethane polymer in a molar ratio of 1: 1. 2. Formulations (all figures in percent by weight, based on the total weight of the respective cosmetic product): raw material 1 2 3 4 5 6 7 Aqueous powder ¹⁾ 4.0 4.0 4.0 4.0 5.0 7.0 8.0 Cationic surfactant ²⁾ 0.45 - 0.45 0.45 1.5 1.0 2.0 Cationic polymer ³⁾ - 0.5 0.5 0.5 2.0 1.0 0.3 Propellant ⁴⁾ 6.0 6.0 6.0 6.0 5.0 2.0 9.5 Nonionic surfactant ⁵⁾ - - - 0.4 0.8 1.0 1.5 1,2-propanediol - - - 1.8 1.8 1.8 1.8 D-panthenol 75% - - - 0.1 0.1 0.1 0.1 Sodium benzoate - - - 0.3 0.3 0.3 0.3 water Ad 100 Ad 100 Ad 100 Ad 100 Ad 100 Ad 100 Ad 100 ¹⁾ preferably one of the previously mentioned PuD1 to PuD11 or the aqueous dispersion prepared under point 1
²⁾ preferably selected from C ₁₆ -alkyltrimethylammonium chloride and / or C ₁₈ -alkyltri [2- (2-hydroxyethoxy) ethyl] -ammonium phosphate,
³⁾ preferably a copolymer of hydroxyethylcellulose with dimethyldiallylammonium chloride
⁴⁾ Mixture of propane and n-butane
⁵⁾ preferably an adduct of 5 to 50 moles of ethylene oxide with castor oil and hydrogenated castor oil

All raw materials except for the blowing agent were mixed and the mixture obtained in each case filled into an aerosol can. Subsequently, the appropriate amount of blowing agent was filled through the valve.

All cosmetics 1 to 7 resulted in spraying a mousse with a pleasant texture and a fast-breaking foam, which spread well on the hair. The hairstyles obtained with these agents showed after drying, preferably at about 50 ° C, a high hold, high stiffness and good moisture resistance. By applying temperatures of 90 ° C, the first created hairstyle could be converted into a new hairstyle without applying any other styling mousse, whereby the hairstyle hold, the rigidity and the moisture resistance were not impaired by the remodeling.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• DIN 53240-2 (November 2007) [0037]
• DIN 53240-2 (November 2007) [0041]
• ISO 11909: 2007-05 [0044]
• DIN 55672-2: 2008-06 [0047]
• ISO 11909: 2007-05 [0088]
• DIN 55672-2: 2008-06 [0088]
• DIN 55672-2: 2008-06 [0089]

Claims (10)

 Cosmetic agent for the temporary deformation of keratinous fibers, contained in a cosmetically acceptable carrier and based on its total weight - a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and b) at least one cationic compound selected from the group of cationic surfactants, cationic polymers and mixtures thereof and c) 0.1 to 10 wt .-% of at least one blowing agent. Cosmetic composition according to claim 1, characterized in that the at least one diene-containing polyurethane polymer comprises at least one polyurethane compound of the formula (I) and at least one diene compound of the formula (II) and at least one polyether compound of the formula (III)

wherein R ₁ to R ₃ , each independently of one another, are a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a and b, each independently of one another, are integers of 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium, contains. Cosmetic composition according to claim 2, characterized in that the at least one diene-containing polyurethane polymer comprises at least one diene compound of the formula (IIa)

contains. Cosmetic composition according to claim 1, characterized in that the at least one dienophile-containing polyurethane polymer comprises at least one polyurethane compound of the formula (I) and at least one dienophile compound of the formula (IV) and at least one polyether compound of the formula (III)

wherein R ₂ to R ₄ , each independently of one another, are a linear or branched C ₁ -C ₄ -alkyl group, in particular a linear C ₁ -C ₂ -alkyl group, a and b, each independently of one another, are integers of 1 to 6, in particular from 1 to 4, and X ^{+ is} a physiologically acceptable cation, in particular sodium, contains. Cosmetic composition according to claim 4, characterized in that the at least one dienophile-containing polyurethane polymer comprises at least one dienophile compound of the formula (IVa)

contains. Cosmetic agent according to one of the preceding claims, characterized in that the at least one diene-containing polyurethane polymer and the at least one dienophile-containing polyurethane polymer each have an average molecular weight M _{w of} from 2,500 to 50,000 g / mol, preferably from 5,000 to 45,000 g / mol, preferably from 10,000 to 40,000 g / mol, in particular from 20,000 to 35,000 g / mol. Cosmetic composition according to one of the preceding claims, characterized in that the aqueous dispersion has a weight ratio of the at least one diene-containing polyurethane polymer to the at least one dienophile-containing polyurethane polymer of 6: 1 to 1: 6, preferably from 5: 1 to 1: 5 , preferably from 4: 1 to 1: 4, in particular from 2: 1 to 1: 2, having. Cosmetic composition according to one of the preceding claims, characterized in that it - based on its total weight - 0.5 to 10 wt .-%, preferably 1.0 to 9.5 wt .-%, preferably 2.0 to 9.0 Wt .-%, in particular 3.0 to 8.0 wt .-%, of at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer contains.  Method for temporary deformation, in particular remodeling temporary deformation, keratinic fibers, wherein a cosmetic agent according to any one of claims 1 to 8 applied to the keratinic fibers and these are then brought into the desired shape. Use of cosmetic compositions containing in a cosmetically acceptable vehicle and by weight a) at least one aqueous dispersion comprising at least one diene-containing polyurethane polymer and at least one dienophile-containing polyurethane polymer and b) at least one cationic compound selected from the group consisting of cationic surfactants, cationic polymers and mixtures thereof and c) 0.1 to 10 wt .-% of at least one blowing agent to improve the long-term maintenance of the keratinic fibers formed by these agents, to increase the durability of the hairstyle obtained with these agents, and to achieve a remodeling hairstyle.