Shampoo preparation with guarhydroxypropyltrimonium chlorides

Description

[0001] Cosmetic products generally serve not only to make one look beautiful and attractive, but also contribute significantly to increased self-esteem and well-being. Accordingly, a wide variety of cosmetic products are used for the daily cleansing and care of human skin and hair.

[0002] Washing hair plays a central role in human personal hygiene. Cleansing the hair and scalp of natural oils, dead skin cells, dirt, and odors fulfills a basic human need.

[0003] Until the 20th century, soap was the only product available to satisfy this need. Due to its alkaline pH, soap was poorly tolerated by the scalp and mucous membranes of the eyes and often left behind soap scum deposits in the hair. The first shampoo containing alkyl sulfates appeared in the 1930s. Since the mid-1960s, alkyl ether sulfates and other surfactants have dominated the shampoo market. They eliminate the disadvantages of soap-based preparations. Today, modern shampoos must not only cleanse the hair and be well-tolerated, but also condition it, improve its manageability, and enhance its overall appearance.

[0004] Until the 20th century, soap was the only product available to satisfy this need. Due to its alkaline pH, soap was poorly tolerated by the scalp and mucous membranes of the eyes and often left behind soap scum deposits in the hair. The first shampoo containing alkyl sulfates appeared in the 1930s. Since the mid-1960s, alkyl ether sulfates and other surfactants have dominated the shampoo market. They eliminate the disadvantages of soap-based preparations. Today, modern shampoos must not only cleanse the hair and be well-tolerated, but also condition it, improve its manageability, and enhance its overall appearance.

[0005] Hair shampoos contain a variety of different components to meet the specific requirements of the product: The cleansing power of shampoos is achieved through the presence of anionic, amphoteric, and nonionic surfactants as surface-active compounds in the formulations. Surfactants also provide the lathering ability of the hair cleansing products. Important factors when selecting surfactants include their insensitivity to water hardness, their biodegradability, their compatibility with other components of the formulation, and their price. Alkyl ether sulfate, for example, is a commonly used shampoo surfactant.

[0006] Furthermore, shampoos contain a number of consistency regulators that give the preparation the desired viscosity. These thickeners cause the surfactant micelles to enlarge or the aqueous phase of the preparation to swell. Thickeners can be selected from a wide variety of chemical classes. These include electrolytes (e.g., sodium chloride), alkanolamides (e.g., fatty acid monoethanolamides), low-ethoxylated fatty alcohols (e.g., diethylene glycol monolauryl ether), high-ethoxylated ethers, esters and diesters, as well as polymeric thickeners. Cellulose ethers are an example of a polymeric thickener. Polyacrylates and hydrocolloids are also used as thickeners. Polymeric thickeners have the significant advantage that the viscosity they produce is largely independent of temperature.

[0007] In addition to perfumes, dyes, and a range of compounds that increase the shelf life of the preparations, various types of active ingredients have recently been added to hair shampoos. These include UV absorbers, vitamins, and plant extracts, as well as so-called hair conditioners, which nourish the hair, improve its manageability and texture, and enhance its shine. Unlike most other shampoo ingredients, conditioners adhere to the hair and remain there after rinsing. Due to their molecular structure, they deposit themselves on damaged areas of the hair cuticle and smooth the hair. This makes the hair less rough and brittle, gives the hairstyle significantly more shine, and makes it easier to comb. The hair also becomes less susceptible to static electricity.The most important hair conditioning substances, usually cationic polymers, are polymeric quaternary ammonium compounds. Cationic cellulose derivatives and polysaccharides can also be used. Silicone compounds are also employed for conditioning.

[0008] One disadvantage of current technology is that frequent washing or chemical treatment (bleaching, dyeing) severely damages the hair. In particular, the removal / destruction of naturally occurring lipids in the hair leads to a loss of smoothness, suppleness, and shine. The hair then appears dry and brittle. To compensate for this damage, large quantities of cationic polyquaternium-10 are typically added to hair care products as a conditioner. To counteract the loss of lipids, silicone compounds or other hydrophobic conditioners are often added to such products. However, these state-of-the-art products have a number of disadvantages: Consumers no longer desire the use of polymers that are homo- or copolymerized with acrylic or methacrylic acid, as well as chemically modified cationic polymers such as polyquaternium-10, because their biodegradability is not fully understood. Consequently, there is a demand for products that do not contain these ingredients. Furthermore, the use of silicone compounds in shampoos is no longer desirable due to unclear compatibility issues, the unnecessary weight they can place on hair, and poor biodegradability. The absence of these components inevitably leads to inferior product properties. However, despite the omission of these components, particularly polyquaternium-10, consumers still expect commercially available shampoos to offer comparable product performance.Desirable features include comparable or improved combability of dry and wet hair; glide after application to wet hair; ease of rinsing the products from the hair; weighting (or lack thereof); lathering properties (quick and easy lathering, richness) and / or glide after rinsing. to reach.

[0009] Various methods for achieving these parameters are described in the prior art. However, achieving suitable product performance according to the parameters described above often requires larger quantities of biodegradable ingredients. This increases production costs for manufacturers, meaning that products can only be sold at a higher price. This is not in the interest of either companies or consumers.

[0010] Consequently, new approaches are needed to achieve at least some of the parameters with the lowest possible concentrations of cationic polymers, especially biodegradable ones.

[0011] The use of guarhydroxypropyltrimonium chloride in shampoo preparations is known to those skilled in the art from, among others, EP1366742, EP1366738 or EP1366739.

[0012] Guar hydroxypropyltrimonium chloride is a polymer that can be obtained from guar meal. The synthesis method can be adapted depending on the desired mass and charge density. Possible synthesis methods and the resulting polymers with the desired mass and charge density are known, among others, from WO 2013 / 011122 A1 or US4663159A.

[0013] Below is a short selection of guar hydroxypropyltrimonium chloride polymers with medium mass and charge density: Tab.1 Trade name Average mass in Da Charge density in meq / g Jaguar ®< C-500 (Rhodia) 3< 389 000 0,72 Jaquar ®< C-17 (Rhodia) 3< 2 000 000 1,04 Jaquar ®< C 13S (Rhodia) 1< 2 200 000 0,8 Jaquar®< C-14s (Rhodia) 3< 2 000 000 0,72 Jaguar ®< Optima (Rhodia) 2< 500 000 1,3 Jaguar ®< Excel (Solvay) 2< 1 500 000 0,7 Hi-Care 1000 (Rhodia) 1< 600 000 0,7 N-Hance 3270 (ASI / Ashland) 1< 425 000 0,7 N-Hance 3196 (ASI / Ashland) 1< 1 100 000 0,8 AquaCat CG518 (ASI / Ashland) 1< 50 000 0,9 Polymer 1 from WO 2013 / 011122 A1 333 000 1,25 Polymer 2 from WO 2013 / 011122 A1 1 190 000 1,37 Polymer 3 from WO 2013 / 011122 A1 305 000 1,17 Polymer 4 from WO 2013 / 011122 A1 368 000 1,37 1< Known from FP 2999455 A1 2< Known from US20180311135 A1 3< Known from WO 2013 / 011122 A1

[0014] The term "charge density," as used here, refers to the ratio of positive charges on a monomer unit of a polymer to the molecular weight of that monomer unit. Charge density is expressed in meq / g (milliequivalents per gram). Multiplying the charge density by the molecular weight of the polymer determines the number of positively charged sites on a given polymer chain.

[0015] The term "cationic groups," as used here, refers to positively charged groups and partially charged groups. The term "partially charged groups," as used here, denotes groups that can become positively charged depending on the pH of the formulation. Such groups can also be called "potentially cationic groups." As used here, the term "cationic" means at least partially cationic. Thus, the terms "cationizing agents," "cationic groups," and "cationic units" encompass ammonium (which carries a positive charge), but also primary, secondary, and tertiary amines and their precursors (which can lead to positively charged compounds).

[0016] For cationic guars, the charge density can be measured using a standard elemental analysis of the percentage nitrogen, a method known to those skilled in the art. For cationic copolymers, the charge density depends on the monomers used in the synthesis. Standard NMR techniques known to those skilled in the art are used to confirm this ratio of cationic to nonionic monomers in the polymer.

[0017] Despite the fact that numerous documents document the use of guar hydroxypropyltrimonium chloride in shampoo preparations, none of the documents could lead the person skilled in the art to the subject matter of the present invention.

[0018] Surprisingly, a shampoo preparation has now been developed that exhibits the aforementioned properties of preparations containing polyquaternium-10, without the use of higher cationic polymer concentrations. This problem was surprisingly solved by the subject matter of the present invention.

[0019] The present invention relates to a shampoo preparation containing a) at least one first guar hydroxypropyltrimonium chloride having a mean molecular weight of more than 2,000,000 to 2,500,000 Daltons and a charge density of 0.5 to 1.0 meq / g, b) at least one second guar hydroxypropyltrimonium chloride having a mean molecular weight of 400,000 to less than 2,000,000 Daltons and a charge density of 0.5 to 1.0 meq / g, c) one or more surfactants the average molecular weight is determined by means of light scattering.

[0020] Where weight percentages (wt%) are given below without reference to a specific composition or mixture, these percentages always refer to the total weight of the preparation. Where ratios of components / substances / groups of substances are disclosed below, these ratios refer to the weight ratios of the components / substances / groups of substances mentioned.

[0021] Where weight percentage ranges for the components of the preparation are specified below, the disclosure of the present application also includes all individual values ​​in steps of 0.1 wt.% within these weight percentage ranges.

[0022] The terms "according to the invention", "advantageous according to the invention", "advantageous in the sense of the present invention" etc. always refer, within the scope of the present disclosure, to the preparation according to the invention as well as the use according to the invention and the method.

[0023] Unless otherwise stated, all tests were conducted under standard conditions. "Standard conditions" means 20°C, 1013 hPa, and a relative humidity of 50%.

[0024] When the term "skin" is used, it primarily refers to human skin. All substances mentioned below are named according to their INCI declaration or by their unambiguous chemical names.

[0025] Emulsifiers are defined as all substances listed as "emulsifying agents" in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010 (ISBN 1-882621-47-6). Surfactants are defined as all substances listed as "surfactants" in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010 (ISBN 1-882621-47-6).

[0026] Any viscosity values ​​given in this disclosure refer to measurements taken at 25°C in a 150 ml wide-mouth bottle (VWR No.: 807-001) using the Rheomat R 123 from proRheo. The Rheomat R 123 from proRheo GmbH is a rotational viscometer, meaning that a measuring element rotates within the substance being measured. The force required to rotate the measuring element within the sample at a predetermined speed is measured. The viscosity is then calculated from this torque, the rotational speed of the measuring element, and the geometric dimensions of the measuring system. The measuring element used is No. 1 (article no. 200 0191), suitable for a viscosity range up to 10,000 mPa·s and a rotational speed of 62.5 min⁻¹.

[0027] When this disclosure refers to an average, that average always refers to arithmetic means.

[0028] Any information regarding the molecular weight of polymers given in this disclosure refers to a measurement by means of light scattering.

[0029] The preparation of the present invention comprises a first guarhydroxypropyltrimethylammonium chloride. According to the invention, this has an average molecular weight of 2,000,000 to 5,000,000 Da, preferably 2,000,000 to 3,500,000 Da, and particularly preferably 2,000,000 to 2,500,000 Da.

[0030] Furthermore, it is according to the invention if the first guarhydroxypropyltrimonium chloride is characterized in that it has a charge density of 0.5 to 1.0 meq / g, preferably of 0.6 to 0.9 meq / g and particularly preferably of 0.65 to 0.85 meq / g.

[0031] It is further advantageous if the proportion of the first guarhydroxypropyltrimonium chloride is 0.01 to 0.5 wt.%, preferably 0.03 to 0.2 wt.% and particularly preferably 0.06 to 0.12 wt.%, based on the total weight of the preparation.

[0032] The preparation of the present invention comprises a second guar-guar hydroxypropyltrimonium chloride. According to the invention, this has an average molecular weight of 400,000 to less than 2,000,000 Da, preferably 600,000 to less than 1,999,999 Da, and particularly preferably 1,000,000 to 1,900,000 Da.

[0033] Furthermore, it is according to the invention if the second guarhydroxypropyltrimonium chloride is characterized in that it has a charge density of 0.5 to 1.0 meq / g, preferably of 0.6 to 0.9 meq / g and particularly preferably of 0.65 to 0.85 meq / g.

[0034] It is further advantageous if the proportion of the second guarhydroxypropyltrimonium chloride is 0.01 to 0.5 wt.%, preferably 0.03 to 0.2 wt.% and particularly preferably 0.06 to 0.12 wt.%, based on the total weight of the preparation.

[0035] Advantageously, the total proportion of the first and second guarhydroxypropyltrimonium chloride is 0.02 to 0.3 wt.%, preferably 0.07 to 0.2 wt.% and particularly preferably 0.1 to 0.19 wt.%, based on the total weight of the preparation.

[0036] Furthermore, it is advantageous in the sense of the present invention if the weight ratio of the first to the second guarhydroxypropyltrimonium chloride is from 2:1 to 1:2, preferably 1.5:1 to 1:1.5 and particularly preferably from 1.2:1 to 1:1.2.

[0037] Furthermore, it is advantageous if the preparation contains additional cationic polymers in proportions of less than 0.2 wt.%, preferably less than 0.1 wt.%, and particularly preferably less than 0.05 wt.%, and most preferably 0 wt.%. Consequently, it is most preferred if no additional cationic polymers are contained.

[0038] Furthermore, it is advantageous if the preparation contains further polymers, apart from alkyl glycosides, in proportions of less than 0.2 wt.%, preferably less than 0.1 wt.% and particularly preferably less than 0.05 wt.% and particularly preferably 0 wt.%.

[0039] The cosmetic preparations according to the invention contain surfactants. Advantageous anionic surfactants active in the sense of the present invention are acylamino acids and their salts, such as ▪ Acylglutamates, especially sodium acylglutamate ▪ Sarcosinates, for example myristoyl sarcosinate, TEA-lauroyl sarcosinate, sodium lauroyl sarcosinate and sodium cocoyl sarcosinate,

[0040] Sulfonic acids and their salts, such as ▪ Acylisethionates, e.g. sodium / ammonium cocoylisethionate, ▪ Sulfosuccinates, for example dioctyl sodium sulfosuccinate, disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate and disodium undecylenamido MEA sulfosuccinate, disodium PEG-5 lauryl citrate sulfosuccinate and derivatives, as well as sulfuric acid esters, such as ▪ Alkyl ether sulfate, for example sodium, ammonium, magnesium, MIPA, TIPA laureth sulfate, sodium myreth sulfate and sodium C 12-13 pareth sulfate, ▪ Alkyl sulfates, for example sodium, ammonium and TEA lauryl sulfate.

[0041] Advantageous surface-active cationic surfactants according to the present invention are quaternary surfactants. Quaternary surfactants contain at least one nitrogen atom covalently bonded to four alkyl or aryl groups. Advantageous examples include alkyl betaine, alkylamidopropyl betaine, and alkylamidopropyl hydroxysultaine.

[0042] Advantageous washing-active amphoteric surfactants within the meaning of the present invention are ▪ Acyl- / dialkylethylenediamines, for example sodium acylamphoacetate, disodium acylamphodipropionate, disodium alkylamphodiacetate, sodium acylamphohydroxypropylsulfonate, disodium acylamphodiacetate and sodium acylamphopropionate,

[0043] Advantageous non-ionic washing-active surfactants within the meaning of the present invention are ▪ Alkanolamides, such as Cocamide MEA / DEA / MIPA, ▪ Esters formed by esterification of carboxylic acids with ethylene oxide, glycerol, sorbitan or other alcohols, ▪ Ethers, for example ethoxylated alcohols, ethoxylated lanolin, ethoxylated polysiloxanes, propoxylated POE ethers and alkyl polyglycosides such as lauryl glucoside, decyl glycoside and coco glycoside.

[0044] Other beneficial anionic surfactants are ▪ Taurates, for example sodium lauroyl taurate and sodium methyl cocoyl taurate, ▪ Ether carboxylic acids, for example sodium laureth-13 carboxylate and sodium PEG-6 cocamide carboxylate, sodium PEG-7 olive oil carboxylate ▪ Phosphoric acid esters and salts, such as DEA oleth-10 phosphate and dilaureth-4 phosphate, ▪ Alkyl sulfonates, for example sodium cocosmonoglyceride sulfate, sodium C 12-14 olefin sulfonate, sodium lauryl sulfoacetate and magnesium PEG-3 cocamide sulfate.

[0045] Other beneficial amphoteric surfactants are N-Alkyl amino acids, for example aminopropylalkylglutamide, alkylaminopropionic acid, sodium alkylimidodipropionate and lauroamphocarboxyglycinate and N-coconut fatty acid amidoethyl-N-hydroxyethylglycinate sodium salts and their derivatives.

[0046] Other beneficial non-ionic surfactants are alcohols.

[0047] Further suitable anionic surfactants within the meaning of the present invention are also ▪ Acylglutamates such as di-TEA-palmitoylaspartate and sodium caprylic / capric glutamate, ▪ Acylpeptides, for example palmitoyl hydrolyzed milk protein, sodium cocoyl hydrolyzed soy protein and sodium / potassium cocoyl hydrolyzed collagen as well as carboxylic acids and derivatives, such as ▪ for example, lauric acid, aluminium stearate, magnesium alkanolate and zinc undecylenate, ▪ ester carboxylic acids, for example, calcium stearoyl lactylate, laureth-6 citrate and sodium PEG-4 lauramide carboxylate, ▪ alkylarylsulfonates.

[0048] Further suitable cationic surfactants within the meaning of the present invention are also ▪ Alkylamines, ▪ Alkylimidazoles, ▪ ethoxylated amines especially their salts.

[0049] Further suitable non-ionic surfactants within the meaning of the present invention are also amine oxides, such as cocamidopropylamine oxide.

[0050] It is advantageous to select the washing-active surfactant(s) according to the invention from the group of surfactants which have an HLB value of more than 25; those which have an HLB value of more than 35 are particularly advantageous.

[0051] According to the invention, it is particularly preferred if anionic, amphoteric and / or non-ionic surfactants are used as surfactants, and it is especially preferred if sodium lauryl ether sulfate, cocamidopropyl betaine and / or disodium PEG-5 lauryl citrate sulfosuccinate and / or N-coconut fatty acid amidoethyl-N-hydroxyethylglycinate sodium salts are used as surfactants.

[0052] Furthermore, polysorbates can be advantageously incorporated into the emulsion as washing agents according to the invention.

[0053] According to the invention, it is particularly advantageous if sodium lauryl ether sulfate is included as an anionic surfactant. Furthermore, it is particularly advantageous if cocamidopropyl betaine is included as a surfactant, especially in combination with sodium lauryl ether sulfate. Additionally, it is advantageous if at least one alkyl glucoside, preferably a decyl glucoside, is included as a surfactant. The decyl glucoside is advantageously used in combination with sodium lauryl ether sulfate and cocamidopropyl betaine.

[0054] If sodium lauryl ether sulfate is included, the proportion of sodium lauryl ether sulfate is advantageously 4 to 15 wt.%, preferably 6 to 14 wt.% and particularly preferably 7 to 13 wt.%, based on the total weight of the preparation.

[0055] If cocamidopropyl betaine is included, the proportion of cocamidopropyl betaine is advantageously 1 to 10 wt.%, preferably 1.5 to 8 wt.% and particularly preferably 2 to 6 wt.%, based on the total weight of the preparation.

[0056] If an alkyl glucoside, in particular decyl glucoside, is included, the proportion of alkyl glucoside, in particular decyl glucoside, is advantageously from 0.1 to 8 wt.%, preferably from 0.5 to 7 wt.% and in particular preferably 0.75 to 5 wt.%, based on the total weight of the preparation.

[0057] It is advantageous in the sense of the present invention if the total proportion of anionic surfactants is 3 to 18 wt.%, preferably 5 to 15 wt.% and particularly preferably 7 to 14 wt.%, based on the total weight of the preparation.

[0058] According to the invention, it is advantageous if one or more surfactants are used in a concentration of 1 to 25 wt%, preferably in a concentration of 20 to wt% and most preferably in a concentration of 8 to 18 wt%, each based on the total weight of the preparation.

[0059] Furthermore, it is advantageous if the preparation is free of silicone compounds. Consequently, the proportion of silicone compounds in the preparation is advantageously less than 2 wt.%, preferably less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.2 wt.%, preferably less than 0.1 wt.%, preferably less than 0.05 wt.%, and particularly preferably 0 wt.%, based on the total weight of the preparation.

[0060] Furthermore, it is advantageous if the preparation is free of polymers resulting from homo- or copolymerization with acrylic acid and / or methacrylic acid. Consequently, the proportion of polymers resulting from homo- or copolymerization with acrylic acid and / or methacrylic acid in the preparation is advantageously less than 2 wt.%, preferably less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.2 wt.%, preferably less than 0.1 wt.%, preferably less than 0.05 wt.%, and particularly preferably 0 wt.%, based on the total weight of the preparation.

[0061] Furthermore, it is advantageous if the preparation is free of other chemically modified catonic polymers. Consequently, the proportion of other chemically modified catonic polymers in the preparation is advantageously less than 2 wt.%, preferably less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.2 wt.%, preferably less than 0.1 wt.%, preferably less than 0.05 wt.%, and particularly preferably 0 wt.%, based on the total weight of the preparation.

[0062] Furthermore, it is advantageous if the preparation is free of polyquaternium-10. Consequently, the proportion of polyquaternium-10 in the preparation is advantageously less than 2 wt.%, preferably less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.2 wt.%, preferably less than 0.1 wt.%, preferably less than 0.05 wt.%, and particularly preferably 0 wt.%, based on the total weight of the preparation.

[0063] Furthermore, it is advantageous if the preparation is free of substances containing a PEG (polyethylene glycol) subunit. Consequently, the proportion of substances containing a PEG (polyethylene glycol) subunit in the preparation is advantageously less than 2% by weight, preferably less than 1% by weight, preferably less than 0.5% by weight, preferably less than 0.2% by weight, preferably less than 0.1% by weight, preferably less than 0.05% by weight, and particularly preferably 0% by weight, based on the total weight of the preparation.

[0064] By definition, a polyethylene glycol subunit consists of at least two consecutive ethylene glycol units.

[0065] Furthermore, it is advantageous if the preparation comprises sodium benzoate. If sodium benzoate is included, it is further advantageous if the proportion of sodium benzoate is 0.1 to 0.8 wt.%, preferably 0.2 to 0.7 wt.%, and particularly preferably 0.3 to 0.7 wt.%, based on the total weight of the preparation.

[0066] Furthermore, it is advantageous if the preparation comprises sodium chloride. If sodium chloride is included, it is further advantageous if the proportion of sodium chloride is 0.1 to 0.8 wt.%, preferably 0.2 to 0.7 wt.%, and particularly preferably 0.3 to 0.7 wt.%, based on the total weight of the preparation.

[0067] Furthermore, it is advantageous if the preparation includes citric acid. If citric acid is included, it is further advantageous if the proportion of citric acid is 0.3 to 1.5 wt.%, preferably 0.5 to 1.3 wt.%, and particularly preferably 0.7 to 1.0 wt.%, based on the total weight of the preparation.

[0068] Furthermore, it is advantageous if the preparation comprises sodium citrate. If sodium citrate is included, it is further advantageous if the proportion of sodium citrate is 0.1 to 0.8 wt.%, preferably 0.2 to 0.7 wt.%, and particularly preferably 0.3 to 0.7 wt.%, based on the total weight of the concentrate.

[0069] It is also advantageous in the sense of the invention if the preparation comprises a microemulsion which has 10 to 20 wt.% alkyl polyglycosides, 4 to 20 wt.% monoesters of glycerol of C12-C22 fatty acids and 5 to 30 wt.% oil bodies, wherein the values ​​refer to the total weight of the microemulsion.

[0070] The microemulsion contains as essential components an alkyl polyglycoside, specifically an alkyl(oligo)glycoside (hereinafter also referred to as "APG"). Alkyl and / or alkenyl oligoglycosides, as defined in this teaching, follow the formula R1< O-[G]p, where R1< represents an alkyl and / or alkenyl group with 4 to 22 carbon atoms, G represents a sugar group with 5 or 6 carbon atoms, and p represents numbers from 1 to 10. They can be obtained by the relevant methods of preparative organic chemistry. The alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses with 5 or 6 carbon atoms, preferably glucose. The preferred alkyl and / or alkenyl oligoglycosides are therefore alkyl and / or alkenyl oligoglucosides. The index number p in the general formula (I) indicates the degree of oligomerization (DP), i.e. the distribution of mono- and oligoglycosides, and represents a number between 1 and 10.While p in a given compound must always be an integer and can primarily take on values ​​from 1 to 6, the value p for a specific alkyl oligoglycoside is an analytically determined calculated quantity, usually a fraction. Alkyl and / or alkenyl oligoglycosides with an average degree of oligomerization p of 1.1 to 3.0 are preferably used. From an application-related perspective, alkyl and / or alkenyl oligoglycosides with a degree of oligomerization less than 1.7, and particularly between 1.2 and 1.5, are preferred. APGs are present in the microemulsions according to the present invention in amounts between 10 and 20 wt.%, based on the total amount of the microemulsion. Amounts in the range of 14 to 19 wt.%, based on the microemulsion, are particularly preferred. Decyl glucoside is particularly preferred as the alkyl polyglycoside used.

[0071] Furthermore, monoesters of fatty acids with chain lengths of C12-C22 are contained in the emulsions with glycerol. Monoesters of glycerol with unsaturated linear fatty acids are particularly suitable. Glycerol monooleate is especially preferred according to the invention. These glycerol esters are present in the microemulsions in amounts of 4 to 20 wt.%, preferably 8 to 15 wt.%, based on the total weight of the microemulsion.

[0072] Finally, the microemulsion contains an oil body, i.e., a non-water-soluble organic phase in amounts of 5 to 30 wt%. Particularly preferred oil phases are selected from the group of Guerbet alcohols based on fatty alcohols with 6 to 18 carbon atoms, esters of linear C6-C22 fatty acids with linear or branched C6-C22 fatty alcohols, or...Esters of branched C6-C13 carboxylic acids with linear or branched C6-C22 fatty alcohols, esters of linear C6-C22 fatty acids with branched alcohols, esters of C6-C22 fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, triglycerides based on C6-C10 fatty acids, liquid mono- / di- / triglyceride mixtures based on C6-C18 fatty acids, esters of C2-C12 dicarboxylic acids with linear or branched alcohols with 1 to 22 carbon atoms or polyols with 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C6-C22 fatty alcohol carbonates, Guerbet carbonates based on fatty alcohols with 6 to 18, preferably 8 to 10 C atoms, esters of benzoic acid with linear and / or branched C6-C22 alcohols, linear or branched, symmetrical or unsymmetrical dialkyl ethers with 6 to 22 carbon atoms per alkyl group, aliphatic orNaphthenic hydrocarbons and / or dialkylcyclohexanes. However, solid fats and / or waxes can also be present as oil components. These may also be mixed with the oils mentioned in the previous section. Typical examples of fats are glycerides, i.e., solid or liquid vegetable or animal products that consist essentially of mixed glycerol esters of higher fatty acids. Waxes include, among others, natural waxes such as candelilla wax, carnauba wax, Japan wax, esparto grass wax, cork wax, guaruma wax, rice bran wax, sugar cane wax, ouricury wax, montan wax, beeswax, shellac wax, spermaceti, lanolin (wool wax), preen grease, ceresin, ozokerite (earth wax), petrolatum, paraffin waxes, and microwaxes. Chemically modified waxes (hard waxes), such as montan ester waxes, sasol waxes, hydrogenated jojoba waxes, as well as synthetic waxes, such as polyalkylene waxes and polyethylene glycol waxes, are in question.Tocopherols and essential oils are also suitable as oil components. Dicaprylyl ether is particularly preferred as an oil component.

[0073] The remainder of the microemulsion consists of water at 100% by weight, and may contain additional ingredients.

[0074] EP2194956 B1 shows microemulsions according to the invention.

[0075] The proportion of the microemulsion in the overall preparation is advantageously from 0.1 to 2 wt.%, preferably from 0.15 to 0.5 wt.% and particularly preferably from 0.2 to 0.3 wt.%, based on the total weight of the preparation.

[0076] It has proven particularly advantageous to add the microemulsion components in the form of a microemulsion. Adding the microemulsion components without prior emulsification of the preparation is less preferred.

[0077] It is advantageous if the total proportion of polymers other than alkyl glucosides is less than 0.3 wt.%, preferably less than 0.25 wt.% and particularly preferably less than 0.2 wt.%.

[0078] Furthermore, it is advantageous if the preparation comprises one or more perfume substances that are liquid under normal conditions. It is preferred if the proportion of liquid perfume substances does not exceed 5% by weight based on the total weight of the preparation. Advantageously, the proportion of liquid perfume substances is between 0.01% and 1.5% by weight, based on the total weight of the preparation. Comparative experiments and examples

[0079] The following examples are intended to illustrate the present invention without limiting it. Unless otherwise stated, all quantities, proportions, and percentages are based on the weight and total quantity or total weight of the preparations.

[0080] The following table shows, with Example 1, a preparation according to the invention, while References 1 and 2 represent comparative examples. Reference 1 shows a conventional shampoo comprising polyquaternium-10. Tab.2 Ingredients Example 1 See 1 See 2 Aqua Ad 100 Ad 100 Ad 100 Cocamidopropyl Betaine 3,36 3,36 3,50 Sodium Chloride 0,504 0,504 0,525 Glycerin 0,252 0,252 0,263 Sodium Laureth Sulfate 9,00 9,00 9,00 PEG-40 Hydrogenated Castor Oil 0,6 Decyl Glucoside 1,50 1,50 Polyquaternium-10 0,27 Guar Hydroxypropyltrimonium Chloride* 0,09 Guar Hydroxypropyltrimonium Chloride** 0,09 Guar Hydroxypropyltrimonium Chloride*** 0,09 0,18 Microemulsion made from 52.5% Aqua, 0.5% Benzoic Acid, 2% Citric Acid, 15% Decyl Glucoside; 20% Dicaprylyl Ether and 10% Glyceryl Oleate 0,25 0,25 Sodium Citrate 0,35 0,35 Citric Acid 0,9 0,9 0,35 Sodium hydroxide qs Sodium Benzoate 0,6 0,6 0,6 Sodium Chloride 1 1 1 Perfume 0,7 0,7 0,7 *Commercial guar hydroxypropyltrimonium chloride; Jaguar® < Excel (Solvay) see table above. **Commercial guar hydroxypropyltrimonium chloride having a mass in the range of more than 2.0 million Daltons to 2.5 million Daltons and a charge density of 0.75 meq / g. ***Commercial guar hydroxypropyltrimonium chloride having a mass in the range of more than 1.2 million Daltons to less than 2.0 million Daltons and a charge density of 0.72 meq / g.

[0081] The above preparations were analyzed in a consumer test. A total of 522 people participated in the consumer test. For this purpose, 174 consumers each received products Example 1, Comparison 1, or Comparison 2.

[0082] Consumers should use the product 3-4 times per week for 10-12 days. Afterwards, they should answer the questions listed in Table 3. The measurements shown represent averages of the given answers. Tab.3 Measurement result Example 1 See 1 See 2 How creamy does the lather of the product feel when washing the hair (0 = not creamy and 100 = very creamy)? 74 69 70 Does the product leave a pleasant tactile feeling during use (0 = not pleasant and 100 = very pleasant)? 82 72 74 How easily can the product be rinsed out (0 = very difficult and 100 = very easy)? 88 78 86 Does the hair feel soft when rinsing out the product? (0 = very rough and 100 = very soft)? 79 69 73 How would you rate the cleaning performance? (0 = does not clean well and 100 = cleans very well) 80 65 71 How easy is it to comb wet hair (0 = difficult to comb, high resistance and 100 = very easy to comb, little resistance) 69 66 55 How easy is it to comb dry hair (0 = difficult to comb, high resistance and 100 = very easy to comb, little resistance) 67 62 59

[0083] As can be seen, the shampoo preparation according to the invention of Bps.1 has significantly improved properties compared to Cf.1 and Cf.2, without the need to use higher amounts of polymer.

[0084] Furthermore, the following preparations were provided, of which only Example 2 represents an example according to the invention: Tab.4 Ingredients Example 2 See 3 See 4 See 5 Aqua Ad 100 Ad 100 Ad 100 Ad 100 Cocamidopropyl Betaine 2,94 2,94 2,94 2,94 Glycerin 0,22 0,22 0,22 0,22 Sodium Chloride 0,44 0,44 0,44 0,44 Sodium Laureth Sulfate 9 9 9 9 Microemulsion made from 52.5% Aqua, 0.5% Benzoic Acid, 2% Citric Acid, 15% Decyl Glucoside; 20% Dicaprylyl Ether and 10% Glyceryl Oleate 0,25 0,25 0,25 0,25 Decyl Glucoside 1,50 1,50 1,50 1,50 Polyquaternium-10 0,18 Guar Hydroxypropyltrimonium Chloride ** 0,09 0,18 Guar Hydroxypropyltrimonium Chloride *** 0,09 0,18 Citric Acid 0,9 0,9 0,9 0,9 Sodium Benzoate 0,45 0,45 0,45 0,45 Sodium Chloride 0,5 0,5 0,5 0,5 Perfume 0,7 0,7 0,7 0,7 Measurement results: Gliding performance (30s) 7,33 6,33 7 5,667 Rinseability (30s) 5,67 5,33 5,333 5,333 combability 6,67 5,67 5,667 6 ** und *** siehe oben.

[0085] The preparations shown in Table 4 were investigated in a further panel study with 5 participants, all of whom were trained personnel. The 5 participants washed human hair wefts to assess the parameters. The following protocol was followed: A human hair weft (10g free hair weight, bleached for 0.5h) was treated with 0.2g of product per 1g of hair. While the product was being lathered, the glide was assessed after 30 seconds (a value of 0 means that it is difficult to glide over the weft because the resistance is too high, and a value of 10 means that it glides over the weft without resistance). The product was then rinsed with lukewarm tap water, and the rinseability was assessed after 30 seconds (0 = difficult to rinse, 10 = easy to rinse). After rinsing, wet combability was assessed using a comb (Hercules Sägemann, No. 623.7 / 394).7, fine side) assessed (0=difficult to comb, high resistance and 10 particularly easy to comb, little resistance).

[0086] The results are also shown in Table 4. Comparing the results to Example 2, it is again evident that despite the lower polymer concentration and the omission of polyquaternium-10, significantly improved lubricity, rinseability, and combability are achieved. A further comparison of Example 2 with Example 3 and Example 4 shows that, with regard to all parameters, a synergistic improvement is achieved compared to the single use of guar hydroxypropyltrimonium chloride.

[0087] Further examples are shown in the following table: Inhaltstoffe Bsp.1 Bsp. 2 Bsp. 3 Bsp. 4 Bsp. 5 Bsp. 6 Aqua Ad 100 Ad 100 Ad 100 Ad 100 Ad 100 Ad 100 Cocamidopropyl Betaine 3,36 3,36 2,94 3,50 3,36 3,20 Sodium Chloride 0,504 0,504 0,44 0,53 0,504 0,48 Glycerin 0,252 0,252 0,22 0,26 0,252 0,24 Sodium Laureth Sulfate 9 8 9 10 8 9 Decyl Glucoside 1,50 2,00 2,00 1,00 2,00 1,50 Guar Hydroxypropyltrimonium Chloride** 0,09 0,09 0,09 0,09 0,135 0,09 Guar Hydroxypropyltrimonium Chloride*** 0,09 0,18 0,18 0,09 0,135 0,18 Mikroemulsion aus 52,5% Aqua, 0,5% Benzoic Acid, 2% Citric Acid, 15% Decyl Glucoside; 20% Dicaprylyl Ether und 10% Glyceryl Oleate 0,25 0,25 0,75 0,50 0,25 1,00 Sodium Citrate 0,35 0,35 0,35 Citric Acid 0,9 0,8 0,75 0,9 0,7 0,75 Sodium Benzoate 0,6 0,6 0,6 0,6 0,6 0,6 Sodium Chloride 0,7 0,8 0,7 0,6 0,8 0,7 Parfum 0,7 0,6 0,5 0,5 0,7 0,7

Claims

1. Shampoo preparation comprising a. at least one first guar hydroxypropyltrimonium chloride which has an average molecular weight of more than 2 000 000 to 5 000 000 daltons and a charge density of 0.5 to 1.0 meq / g, b. at least one second guar hydroxypropyltrimonium chloride which has an average molecular weight of 400 000 to less than 2 000 000 daltons and a charge density of 0.5 to 1.0 meq / g, c. one or more surfactants, where the average molecular weight is determined by light scattering.

2. Shampoo preparation according to Claim 1, characterized in that the first guar hydroxypropyltrimonium chloride has an average molecular weight of 2 000 000 to 3 500 000 Da and preferably of 2 000 000 to 2 500 000 Da.

3. Shampoo preparation according to either of the preceding claims, characterized in that the first guar hydroxypropyltrimonium chloride is characterized in that it has a charge density of 0.6 to 0.9 meq / g and preferably of 0.65 to 0.85 meq / g.

4. Shampoo preparation according to any of the preceding claims, characterized in that the proportion of the first guar hydroxypropyltrimonium chloride is from 0.01% to 0.5% by weight, preferably 0.03% to 0.2% by weight and especially preferably 0.06% to 0.12% by weight, based on the total weight of the preparation.

5. Shampoo preparation according to any of the preceding claims, characterized in that the second guar hydroxypropyltrimonium chloride has an average molecular weight of 600 000 to less than 1 999 999 Da and preferably of 1 000 000 to 1 900 000 Da.

6. Shampoo preparation according to any of the preceding claims, characterized in that the second guar hydroxypropyltrimonium chloride is characterized in that it has a charge density of 0.6 to 0.9 meq / g and preferably of 0.65 to 0.85 meq / g.

7. Shampoo preparation according to any of the preceding claims, characterized in that the proportion of the second guar hydroxypropyltrimonium chloride is from 0.01% to 0.5% by weight, preferably 0.03% to 0.2% by weight and especially preferably 0.06% to 0.12% by weight, based on the total weight of the preparation.

8. Shampoo preparation according to any of the preceding claims, characterized in that the weight ratio of the first to the second guar hydroxypropyltrimonium chloride is from 2:1 to 1:2, preferably 1.5:1 to 1:1.5 and especially preferably from 1.2:1 to 1:1.2.

9. Shampoo preparation according to any of the preceding claims, characterized in that the preparation comprises further cationic polymers in proportions of less than 0.2% by weight, preferably less than 0.1% by weight and especially preferably less than 0.05% by weight and especially preferably of 0% by weight.

10. Shampoo preparation according to any of the preceding claims, characterized in that one or more surfactants are used in a concentration of 1% to 25% by weight, preferably in a concentration of 7% to 20% by weight and very particularly preferably in a concentration of 8% to 18% by weight, in each case based on the total weight of the preparation.

11. Shampoo preparation according to any of the preceding claims, characterized in that anionic surfactants are present, where the total proportion of the anionic surfactants is from 3% to 18% by weight, preferably from 5% to 15% by weight and especially preferably 7% to 14% by weight, based on the total weight of the preparation.

12. Shampoo preparation according to any of the preceding claims, characterized in that cocamidopropyl betaine is present as surfactant, where the proportion of cocamidopropyl betaine is advantageously from 1% to 10% by weight, preferably from 1.5% to 8% by weight and especially preferably 2% to 6% by weight, based on the total weight of the preparation.

13. Shampoo preparation according to any of the preceding claims, characterized in that an alkyl glucoside, in particular decyl glucoside, is present as surfactant, where the proportion of alkyl glucoside, in particular decyl glucoside, is advantageously from 0.1% to 8% by weight, preferably from 0.5% to 7% by weight and especially preferably 0.75% to 5% by weight, based on the total weight of the preparation.

14. Shampoo preparation according to any of the preceding claims, characterized in that the preparation is free of polymers from homo- or copolymerization with acrylic acid and / or methacrylic acid.

15. Shampoo preparation according to any of the preceding claims, characterized in that the preparation comprises a microemulsion which comprises 10% to 20% by weight of alkyl polyglycosides, 4% to 20% by weight of glycerol monoesters of C12-C22 fatty acids and 5% to 30% by weight of oil bodies, where the figures are based on the total weight of the microemulsion.

16. Shampoo preparation according to any of the preceding claims, characterized in that the total proportion of polymers which are different from alkyl glucosides is less than 0.3% by weight, preferably less than 0.25% by weight and especially preferably less than 0.2% by weight, based on the total weight of the preparation.