Stable cleaning compositions comprising hydrogel particles and polysaccharide thickener

Abstract

A hand dishwashing detergent composition comprising at least one surfactant; and particles of a natural material, characterized in that the particles are embedded in a hydrogel matrix; and the composition comprises a polysaccharide thickener.

Description

[0001] The present invention relates to a composition comprising at least one surfactant and at least one natural material having low density and at the same time sufficient hardness.

[0002] Cleaning hard surfaces, such as floors or dishes, presents a particular challenge, especially when these surfaces are heavily soiled. Cleaning agents, especially hand dishwashing detergents, require not only the cleaning performance provided by surfactant and chemical components, but also an additional performance component that is created by physical action: the abrasive effect.

[0003] For example, WO 2005 / 010138 A1 describes a composition comprising, for example, a powder of apricot kernels. This is suitable for cleaning hard surfaces as well as human skin. Various abrasives are also disclosed in US Pat. No. 4,457,856 A. Particles of pistachio shells are contained in cleaning agents such as those described in EP 2 573 157 A1. The same abrasive particles are also described in WO 2013 / 043620 A1. Plastics, hard waxes, or ceramic particles are described as abrasive particles, for example, in WO 2004 / 035720 A1.

[0004] However, the solutions proposed so far have disadvantages. Plastic particles are typically made from petroleum and are therefore neither sustainable nor readily biodegradable. The resulting microplastics can accumulate in the environment. The long-term effects of this are unclear. Furthermore, these particles are often round. The rounder the particles, the less abrasive they are.

[0005] Biodegradable plastics are also known. However, these are generally only biodegradable under certain conditions, such as high pressure or high temperature. These do not correspond to the usual household wastewater pathway.

[0006] The natural products proposed in the prior art, such as fruit peels or pits, are preferred for environmental reasons. However, they are usually not very hard, so the additional cleaning effect they are intended to achieve is limited. Abrasives such as pumice, on the other hand, can cause scratches on dishes.

[0007] EP 3 559 191 B1 describes compositions that use particles in a hydrogel matrix to achieve good cleaning performance without causing scratches on dishes. However, these special hydrogel particles must be stabilized in the composition. EP 3 559 191 B1 uses a polyacrylate thickener, which, however, does not provide a satisfactory stabilizing effect for the hydrogel particles under all conditions. In particular, the range of composition variation is limited due to insufficient colloidal stabilization. In particular, it has been shown that the prior art composition becomes unstable and cloudy at acidic pH values. However, sufficient colloidal stabilization even outside a narrowly defined neutral pH range is desirable to enable broad application possibilities for preservatives.

[0008] The object of the present invention is therefore to provide a composition which achieves good cleaning performance without causing scratches on the dishes and which stabilizes hydrogel particles.

[0009] The object is achieved by a hand dishwashing detergent composition comprising at least one surfactant; and Particles made of a natural material, wherein the particles are embedded in a hydrogel matrix; and the composition comprises a polysaccharide thickener.

[0010] Suitable polysaccharides or heteropolysaccharides as thickeners are polysaccharide gums, for example gum arabic, agar, alginates, carrageenans and their salts, guar, guaran, tragacanth, gellan, ramsan, dextran or xanthan and their derivatives, for example propoxylated guar, as well as their mixtures. Other polysaccharide thickeners, such as starches or cellulose derivatives, can be used alternatively, but preferably in addition, to a polysaccharide gum. These include starches of various origins and starch derivatives, for example hydroxyethyl starch, starch phosphate esters or starch acetates, or carboxymethylcellulose or its sodium salt, methyl, ethyl, hydroxyethyl, hydroxypropyl, hydroxypropylmethyl or hydroxyethylmethylcellulose, or cellulose acetate.

[0011] A preferred polymer is the microbial anionic heteropolysaccharide xanthan gum, which is produced by Xanthomonas campestris and some other species under aerobic conditions with a molecular weight of 2 to 15×10 6< and is marketed, for example, by Kelco under the trade names Keltrof ®< and Kelzan ®< or also by the company Rhodia under the trade name Rhodope ®< is available.

[0012] Another preferred polymer is the heteropolysaccharide Gellan Gum, which is also microbial and is produced under aerobic conditions, for example by Auromonas elodea and especially from Sphingomonas paucimobilis- strains. Gellan Gum, for example, can be found under the trade name Kelcogel ®< in various qualities from the company Kelco can be obtained.

[0013] The thickener is always selected with the proviso that the largely transparent visual impression should be retained, i.e. clouding caused by the thickener is to be avoided as far as possible. The thickener content is usually between 0.01 and 8 wt.%, preferably between 0.1 and 6 wt.%, particularly preferably between 0.5 and 3 wt.%, for example between 0.5 and 1 wt.% or between 2 and 3 wt.%. The viscosity of the agents according to the invention is essentially adjusted or controlled via the thickener content, whereby the required amounts can vary from thickener to thickener. The surfactant composition used also plays a role in the choice of quantity.

[0014] According to a particularly preferred embodiment, the composition is described wherein the polysaccharide thickener comprises xanthan gum.

[0015] According to a preferred embodiment, the composition is described, wherein the composition has a pH of at most 6, preferably of at most 5.

[0016] According to a preferred embodiment, the pH is preferably selected in the range 2.3 to 6.8, more preferably 2.8 to 6.2, more preferably 3.4 to 5.6, more preferably 3.9 to 5.1, in particular 4.2 to 4.8.

[0017] According to a preferred embodiment, the composition is described, wherein the composition comprises a potassium salt.

[0018] According to a preferred embodiment, the composition is described wherein the potassium salt is present in the composition in an amount of at least 0.05% by weight, preferably at least 0.1% by weight.

[0019] According to a preferred embodiment, the composition is described wherein the potassium salt is present in the composition in an amount of at least 0.05 wt% to 10 wt%, preferably at least 0.1 wt% to 5 wt%.

[0020] According to a preferred embodiment, the composition is described wherein the potassium salt is potassium acetate.

[0021] Isothiazolinone-based preservatives are commonly used in cleaning products. However, there are some potential drawbacks and concerns associated with isothiazolinone-based preservatives. Isothiazolinones can cause allergic reactions, especially in sensitive individuals. Cases of skin irritation, eczema, and allergic contact dermatitis have been reported in association with the use of products containing isothiazolinones. Long-term exposure to isothiazolinones can potentially lead to sensitization, meaning people may become more sensitive to these chemicals over time. This increases the risk of allergic reactions. Sodium benzoate is more suitable in this regard. However, this requires the formulation to be adjusted to an acidic pH.

[0022] According to a preferred embodiment, the composition is therefore described, wherein the composition comprises sodium benzoate as a preservative.

[0023] According to a preferred embodiment, the composition is further described, wherein the composition is free of isothiazolinone-based preservatives.

[0024] By using a natural material as the particle, the use of plastics can be avoided. At the same time, the hydrogel coating prevents scratches on delicate materials, such as glass surfaces found in ceramic hobs. Even manual cleaning of drinking glasses, for example, does not damage the material.

[0025] At the same time, the material according to the invention preferably has a specific gravity of 1 to 4. This low density compared to materials described in the prior art enables good dispersion of the materials in the composition. The low specific gravity enables an attractive visual appearance, particularly in liquid compositions. Furthermore, the natural material can be evenly distributed and stably incorporated. This ensures that a sufficient, consistent amount of natural material, which in this case represents the abrasive, is used at any dosage of the composition. "Abrasive" and "natural material" are used synonymously in the present application.

[0026] The abrasives preferably have a particle size in the range from 0.1 µm to 50,000 µm, in particular from 0.1 µm to 40,000 µm, preferably from 0.5 µm to 25,000 µm, in particular from 1 µm to 10,000 µm or from 10,000 µm or less, preferably from 5 µm to 5,000 µm or from 10 µm to 1,000 µm. Abrasives with a corresponding particle size are visually perceived by the consumer. This is of particular interest to consumers in the case of hand dishwashing detergents. However, this particle size is also particularly suitable for removing stubborn soiling. Larger particles would break under pressure. In addition, they cannot penetrate under the edges of the dirt and thus detach it from the surface.

[0027] Natural materials within the meaning of the present invention are materials based on naturally occurring raw materials. Naturally occurring raw materials are those that are of natural origin, i.e., originally found in nature. The natural materials within the meaning of the present invention are sustainable and do not increase the ecological footprint. The ecological footprint is understood to be the area on earth that is necessary to permanently enable a person's lifestyle and standard of living. This includes areas required for the production of clothing and food or for the provision of energy, but also for the disposal of waste. Physical post-processing is not excluded according to the invention.The natural material is preferably an inorganic material which is in particular biologically neutral and free of heavy metals, or these heavy metals cannot be mobilized.

[0028] Preferably, the natural material is an expanded mineral or expanded glass of natural origin. Natural origin means that the mineral or glass itself can originally occur in nature. This is then expanded to produce the material with the appropriate density and Mohs hardness. The natural material is particularly preferably expanded volcanic glass. In particular, the volcanic glass is obsidian, which in expanded form is known as perlite. Perlite usually contains a residual water content of around 2% and has a thermal conductivity λ of 0.040 to 0.070 W / mK. Due to its low thermal conductivity, perlite is commonly used as a building material for thermal insulation and as a fire retardant.

[0029] The natural material preferably does not have a round shape. If a particle shape factor is determined, which defines the aspect ratio of particles to one another, a value of 1 would represent a perfectly round shape and a value of 0 would represent a linear shape. According to the invention, the abrasive material preferably has a particle shape factor of 0.1 to 0.97, in particular of 0.15 to 0.9, in particular of 0.20 to 0.80, preferably of 0.3 to 0.70 or up to 0.60, with values ​​of 0.30 or 0.40 to 0.50 being particularly preferred. Particles with a particle shape factor of 1 would have hardly any abrasive effect. A completely linear shape, on the other hand, would not be stable, since corresponding rods could be destroyed when pressure is applied.

[0030] The composition comprises the at least one natural material in a proportion of 0.02 wt.% to 40 wt.%, in particular from 0.05 wt.% to 30 wt.% or up to 35 wt.%, preferably from 0.1 wt.% to 20 wt.% or up to 15 wt.%, particularly preferably from 0.2 wt.% to 5 wt.%. The composition may comprise a natural material or mixtures of different natural materials. It preferably comprises a natural material as an abrasive.

[0031] The proportion of natural material in the composition depends on the composition in question. The composition can be a washing or cleaning agent for hard surfaces or human skin. In particular, it is a washing or cleaning agent for hard surfaces, preferably a washing or cleaning agent for the manual cleaning of hard surfaces, in particular a cleaning agent for the manual cleaning of dishes, such as a hand dishwashing detergent. In this case, the proportion of abrasive substance is preferably 0.03% to 10% by weight. However, it is also possible for the composition to be a cleaning agent for hard surfaces, such as a scouring cream. In this case, the proportion of abrasives is preferably 10% to 40% by weight, in particular 15% to 30% by weight.

[0032] In a particular embodiment, the at least one abrasive comprises pumice, also referred to as pumice. Pumice or pumice stone is a porous, glassy volcanic rock whose density is less than that of water due to the numerous pores that make up a significant portion of its volume, meaning that pumice floats in water. The particles are preferably made of pumice.

[0033] In another very special embodiment, the particles comprise a citrate salt, such as sodium citrate or potassium citrate. Preferably, the at least one abrasive consists of the citrate salt. The citrate particles allow for good embedding in the hydrogel shell and prevent scratching of sensitive materials, such as glass surfaces found in ceramic hobs. Even during manual cleaning of drinking glasses, for example, the use of citrate particles does not damage the material.

[0034] Pumice has been found to have excellent abrasive properties and, as a natural material, to be highly environmentally friendly. Furthermore, due to its high porosity, pumice serves as an excellent carrier for fragrances and dyes.

[0035] The particles with the hydrogel matrix are also called "beads," where the hydrogel forms a matrix for the abrasive particles. Because the abrasives are embedded in the hydrogel particles, the abrasive particles can be well dispersed. Upon mechanical action, e.g., friction during wiping or when used as a cleaning agent, a

[0036] The hydrogel matrix of the particles in which the abrasive particles are embedded preferably comprises carrageenan and / or agar. More preferably, the matrix comprises carrageenan and / or agar in an amount of >80 wt.% based on the mass of the beads, i.e., the particles including the shell.

[0037] The composition comprises the polyacrylic acid polymer in an amount of 0.1 wt% to 4 wt%, and preferably 1 wt% to 2.5 wt%, and more preferably 1.5 wt% to 2.5 wt%,

[0038] In a particular embodiment, the at least one abrasive substance comprises or consists of a volcanic glass, in particular pumice. It has been found that pumice has very good abrasive properties and, as a natural material, is highly environmentally friendly. Furthermore, due to its high porosity, pumice serves as a carrier for fragrances and dyes. However, due to its high porosity and low density, pumice disadvantageously floats on the surface of aqueous solutions, which particularly hinders its use as a cleaning agent.

[0039] The composition according to the invention comprises the at least one surfactant in a proportion of 5 wt.% to 35 wt.%, in particular of 8 wt.% to 30 wt.%, preferably of 10 wt.% to 25 wt.%. This thus refers to the total surfactant content. At least one surfactant in the sense of the present invention means that the composition can comprise a surfactant or mixtures of several different surfactants, such as, for example, anionic surfactants (anionic surfactant) and nonionic surfactants and amphoteric surfactants. The composition particularly preferably comprises an anionic surfactant and a nonionic surfactant and an amphoteric surfactant, in particular at least one anionic surfactant, at least one nonionic surfactant and at least one amphoteric surfactant.

[0040] Anionic surfactants according to the invention can be aliphatic sulfates such as fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, and aliphatic sulfonates such as alkanesulfonates, olefinsulfonates, ethersulfonates, n-alkyl ether sulfonates, estersulfonates, and ligninsulfonates. Also usable within the scope of the present invention are alkylbenzenesulfonates, fatty acid cyanamides, sulfosuccinic acid esters, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, ethercarboxylic acids, and alkyl (ether) phosphates.

[0041] The alkyl ether sulfates, alkyl and / or aryl sulfonates and / or alkyl sulfates as well as the other anionic surfactants are usually used as alkali metal, alkaline earth metal and / or mono-, di- or trialkanolammonium salt and / or in the form of their salts with the corresponding alkali metal hydroxide, alkaline earth metal hydroxide and / or mono-, di- or trialkanolamine in situThe corresponding acid to be neutralized is used. Preferred alkali metals are potassium and especially sodium, the alkaline earth metals are calcium and especially magnesium, and the alkanolamines are mono-, di-, or triethanolamine. The sodium salts are particularly preferred.

[0042] Alkyl ether sulfates (fatty alcohol ether sulfates, INCIAlkyl ether sulfates) are products of sulfation reactions on alkoxylated alcohols. In this context, the person skilled in the art generally understands alkoxylated alcohols to be the reaction products of alkylene oxide, preferably ethylene oxide, with alcohols, in the sense of the present invention preferably with longer-chain alcohols, i.e. with aliphatic straight-chain or singly or multiply branched, acyclic or cyclic, saturated or singly or multiply unsaturated, preferably straight-chain, acyclic, saturated, alcohols having 6 to 22, preferably 8 to 18, in particular 10 to 16 and particularly preferably 12 to 14 carbon atoms. As a rule, n Moles of ethylene oxide and one mole of alcohol, depending on the reaction conditions, a complex mixture of addition products with different degrees of ethoxylation (n= 1 to 30, preferably 0.30 to 20, in particular 0.30 to 10, particularly preferably 0.30 to 5). A further embodiment of the alkoxylation consists in the use of mixtures of alkylene oxides, preferably the mixture of ethylene oxide and propylene oxide. Very particular preference for the purposes of the present invention is given to low-ethoxylated fatty alcohols having 0.30 to 4 ethylene oxide units (EO), in particular 0.30 to 2 EO, for example 0.50 EO, 1.0 EO, 1.3 EO and / or 2.0 EO, such as Na-C 12-14 fatty alcohol + 0.5 EO sulfate, Na-C 12-44 fatty alcohol + 1.3 EO sulfate, Na-C 12-14 fatty alcohol + 2.0 EO sulfate and / or Mg-C 11-14 fatty alcohol + 1.0 EO sulfate.

[0043] The agent according to the invention may contain one or more alkyl ether sulfates in an amount of usually 1 to 40 wt.%, preferably 3 to 30 wt.%, in particular more than 6 to 26 wt.%, particularly preferably 8 to 20 wt.%, most preferably 10 to 16 wt.%.

[0044] The alkyl sulfonates (INCISulfonic acids) usually have an aliphatic straight-chain or singly or multiply branched, acyclic or cyclic, saturated or singly or multiply unsaturated, preferably branched, acyclic, saturated, alkyl radical having 6 to 22, preferably 9 to 20, in particular 11 to 18 and particularly preferably 13 to 17 carbon atoms.

[0045] Suitable alkylsulfonates are accordingly the saturated alkanesulfonates, the unsaturated olefinsulfonates and the ethersulfonates - formally derived from the alkoxylated alcohols on which alkyl ether sulfates are based - in which terminal ethersulfonates (n-ethersulfonates) with a sulfonate function bound to the polyether chain and internal ethersulfonates (i-ethersulfonates) with a sulfonate function linked to the alkyl radical are used.

[0046] According to the invention, preference is given to the alkanesulfonates, in particular alkanesulfonates with a branched, preferably secondary, alkyl radical, for example the secondary alkanesulfonate sec. Na-C 13-17 -alkanesulfonate (INCI Sodium C 14-17 Alkyl Sec Sulfonate).

[0047] Preferred arylsulfonates are alkylbenzenesulfonates, where the alkyl radicals represent branched and unbranched chains with C 1 -C 20 , preferably C 2 -C 18 , particularly preferably C 6 -C 16 and most preferably C 8 -C 12 . Particularly preferred examples are LAS and / or cumenesulfonate.

[0048] The agent according to the invention may contain one or more alkyl and / or arylsulfonates in an amount of usually 0.1 to less than 40% by weight, preferably 0.1 to 30% by weight, in particular 1 to less than 14% by weight, particularly preferably 2 to 10% by weight, most preferably 4 to 8% by weight.

[0049] Alkyl sulfates, such as fatty alcohol sulfates, can also be used in the present invention. Suitable alkyl sulfates are sulfates of saturated and unsaturated fatty alcohols with C 6 -C 22 , preferably C 10 -C 18 , and particularly preferably C 11 -C 16 . Particularly suitable alkyl sulfates are those with a native C fraction of C 12-14-16 and / or a petrochemical C fraction of C 12-13 , C 14 -C 15 in the range of 0 to 15%, preferably 0-10%, particularly preferably 0 to 8%.

[0050] The agent according to the invention may additionally contain one or more further anionic surfactants, usually in an amount of 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%.

[0051] Suitable other anionic surfactants are in particular aliphatic sulfates such as monoglyceride sulfates and ester sulfonates (sulfofatty acid esters), lignin sulfonates, fatty acid cyanamides, anionic sulfosuccinic acid surfactants, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates.

[0052] Other suitable anionic surfactants are also anionic gemini surfactants with a diphenyl oxide basic structure, 2 sulfonate groups and an alkyl radical on one or both benzene rings according to the formula -< O 3 S(C 6 H 3 R)O(C 6 H 3 R')SO 3 -< , in which R is an alkyl radical having, for example, 6, 10, 12 or 16 carbon atoms and R' is R or H (Dowfax ®< Dry Hydrotrope Powder with C 16 alkyl radical(s); INCISodium Hexyldiphenyl Ether Sulfonate, Disodium Decyl Phenyl Ether Disulfonate, Disodium Lauryl Phenyl Ether Disulfonate, Disodium Cetyl Phenyl Ether Disulfonate) and fluorinated anionic surfactants, in particular perfluorinated alkylsulfonates such as ammonium C 9 / 10 perfluoroalkylsulfonate (Fluorad ®< FC 120) and perfluorooctanesulfonic acid potassium salt (Fluorad ®< FC 95).

[0053] Particularly preferred other anionic surfactants are the anionic sulfosuccinic acid surfactants sulfosuccinates, sulfosuccinamates, and sulfosuccinamides, especially sulfosuccinates and sulfosuccinamates, most preferably sulfosuccinates. Sulfosuccinates are the salts of the mono- and diesters of sulfosuccinic acid HOOCCH(SO 3 H)CH 2 COOH, while sulfosuccinamates are the salts of the monoamides of sulfosuccinic acid, and sulfosuccinamides are the salts of the diamides of sulfosuccinic acid. A detailed description of these well-known anionic surfactants is provided by A. Domsch and B. Irrgang in Anionic surfactants: organic chemistry (edited by HW Stache; Surfactant science series; volume 56; ISBN 0-82479394-3; Marcel Dekker, Inc., New York 1996, pp. 501-549).

[0054] The salts are preferably alkali metal salts, ammonium salts and mono-, di- or trialkanolammonium salts, for example mono-, di- or triethanolammonium salts, in particular lithium, sodium, potassium or ammonium salts, particularly preferably sodium or ammonium salts, most preferably sodium salts.

[0055] In the sulfosuccinates, one or both carboxyl groups of the sulfosuccinic acid are preferably esterified with one or two identical or different unbranched or branched, saturated or unsaturated, acyclic or cyclic, optionally alkoxylated alcohols having 4 to 22, preferably 6 to 20, in particular 8 to 18, particularly preferably 10 to 16, extremely preferably 12 to 14 carbon atoms. Particularly preferred are the esters of unbranched and / or saturated and / or acyclic and / or alkoxylated alcohols, in particular unbranched, saturated fatty alcohols and / or unbranched, saturated fatty alcohols alkoxylated with ethylene and / or propylene oxide, preferably ethylene oxide, having a degree of alkoxylation of 1 to 20, preferably 1 to 15, in particular 1 to 10, particularly preferably 1 to 6, extremely preferably 1 to 4. The monoesters are preferred over the diesters in the context of the present invention.A particularly preferred sulfosuccinate is sulfosuccinic acid lauryl polyglycol ester disodium salt (lauryl EOsulfosuccinate, di-Na salt; INCI Disodium Laureth Sulfosuccinate), which is available, for example, as . Tego ®< Sulfosuccinate F 30 (Goldschmidt) with a sulfosuccinate content of 30 wt% is commercially available.

[0056] In the sulfosuccinamates or sulfosuccinamides, one or both carboxyl groups of the sulfosuccinic acid preferably form a carboxamide with a primary or secondary amine bearing one or two identical or different, unbranched or branched, saturated or unsaturated, acyclic or cyclic, optionally alkoxylated alkyl radicals having 4 to 22, preferably 6 to 20, in particular 8 to 18, particularly preferably 10 to 16, and most preferably 12 to 14 carbon atoms. Particular preference is given to unbranched and / or saturated and / or acyclic alkyl radicals, in particular unbranched, saturated fatty alkyl radicals.

[0057] Also suitable are, for example, the following sulfosuccinates and sulfosuccinamates, which are designated according to INCI and are International Cosmetic Ingredient Dictionary and Handbooknäher beschrieben sind: Ammonium Dinonyl Sulfosuccinate, Ammonium Lauryl Sulfosuccinate, Diammonium Dimethicone Copolyol Sulfosuccinate, Diammonium Lauramido-MEA Sulfosuccinate, Diammonium Lauryl Sulfosuccinate, Diammonium Oleamido PEG-2 Sulfosuccinate, Diamyl Sodium Sulfosuccinate, Dicapryl Sodium Sulfosuccinate, Dicyclohexyl Sodium Sulfosuccinate, Diheptyl Sodium Sulfosuccinate, Dihexyl Sodium Sulfosuccinate, Diisobutyl Sodium Sulfosuccinate, Dioctyl Sodium Sulfosuccinate, Disodium Cetearyl Sulfosuccinate, Disodium Cocamido MEA-Sulfosuccinate, Disodium Cocamido MIPA-Sulfosuccinate, Disodium Cocamido PEG-3 Sulfosuccinate, Disodium Coco-Glucoside Sulfosuccinate, Disodium Cocoyl Butyl Gluceth-10 Sulfosuccinate, Disodium C12-15 Pareth Sulfosuccinate, Disodium Deceth-5 Sulfosuccinate, Disodium Deceth-6 Sulfosuccinate, Disodium Dihydroxyethyl Sulfosuccinylundecylenate, Disodium Dimethicone Copolyol Sulfosuccinate, Disodium Hydrogenated Cottonseed Glyceride Sulfosuccinate,Disodium Isodecyl Sulfosuccinate, Disodium Isostearamido MEA-Sulfosuccinate, Disodium Isostearamido MIPA-Sulfosuccinate, Disodium Isostearyl Sulfosuccinate, Disodium Laneth-5 Sulfosuccinate, Disodium Lauramido MEA-Sulfosuccinate, Disodium Lauramido PEG-2 Sulfosuccinate, Disodium Lauramido PEG-5 Sulfosuccinate, Disodium Lau-reth-6 Sulfosuccinate, Disodium Laureth-9 Sulfosuccinate, Disodium Laureth-12 Sulfosuccinate, Disodium Lauryl Sulfosuccinate, Disodium Myristamido MEA-Sulfosuccinate, Disodium Nonoxynol-10 Sulfosuccinate, Disodium Oleamido MEA-Sulfosuccinate, Disodium Oleamido MIPA-Sulfosuccinate, Disodium Oleamido PEG-2 Sulfosuccinate, Disodium Oleth-3 Sulfosuccinate, Disodium Oleyl Sulfosuccinate, Disodium Palmitamido PEG-2 Sulfosuccinate, Disodium Palmitoleamido PEG-2 Sulfosuccinate, Disodium PEG-4 Cocoamido MIPA-Sulfosuccinate, Disodium PEG-5 Laurylcitrate Sulfosuccinate, Disodium PEG-8 Palm Glycerides Sulfosuccinate, Disodium Ricinoleamido MEA-Sulfosuccinate,Disodium Sitostereth-14 Sulfosuccinate, Disodium Stearamido MEA-Sulfosuccinate, Disodium Stearyl Sulfosuccinamate, Disodium Stearyl Sulfosuccinate, Disodium Tallamido MEA-Sulfosuccinate, Disodium Tallowamido MEA-Sulfosuccinate, Disodium Tallow Sulfosuccinamate, Disodium Tridecylsulfosuccinate, Disodium Undecylenamido MEA-Sulfosuccinate, Disodium Undecylenamido PEG-2 Sulfosuccinate, Disodium Wheat Germamido MEA-Sulfosuccinate, Disodium Wheat Germamido PEG-2 Sulfosuccinate, Di-TEA-Oleamido PEG-2 Sulfosuccinate, Ditridecyl Sodium Sulfosuccinate, Sodium Bisglycol Ricinosulfosuccinate, Sodium / MEA Laureth-2 Sulfosuccinate und Tetrasodium Dicarboxyethyl Stearyl Sulfosuccinamate. Noch ein weiteres geeignetes Sulfosuccinamat ist Dinatrium-C 16-18 -alkoxypropylensulfosuccinamat.,

[0058] Preferred anionic sulfosuccinic acid surfactants are imidosuccinate, mono-Na-sulfosuccinic acid diisobutyl ester (Monawet ®< MB 45), mono-Na-sulfosuccinic acid di-octyl ester (Monawet ®< MO-84 R2W, Rewopol ®< SB DO 75), mono-Na-sulfosuccinic acid di-tridecyl ester (Monawet ®< MT 70), fatty alcohol polyglycol sulfosuccinate Na-NH 4 salt (Sulfosuccinate S-2), di-Na-sulfosuccinic acid mono-C 12 / 14 -3EO-ester (Texapon ®< SB-3), sodium sulfosuccinic acid diisooctyl ester (Texin ®< DOS 75) and di-Na-sulfosuccinic acid mono-C 12 / 18 -ester (Texin ®< 128-P), especially mono-Na-sulfosuccinic acid dioctyl ester.

[0059] In a particular embodiment, the agent according to the invention contains as anionic sulfosuccinic acid surfactants one or more sulfosuccinates, sulfosuccinamates and / or sulfosuccinamides, preferably sulfosuccinates and / or sulfosuccinamates, in particular sulfosuccinates, in an amount of usually 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%.

[0060] The amphoteric surfactants (amphoteric surfactants, zwitterionic surfactants) that can be used according to the invention include betaines, alkylamidoalkylamines, alkyl-substituted amino acids, acylated amino acids or biosurfactants, of which the betaines are preferred within the scope of the teaching according to the invention.

[0061] The agent according to the invention may contain one or more amphoteric surfactants in an amount of usually 0.1 to 20 wt.%, preferably 1 to 15 wt.%, in particular 2 to 12 wt.%, particularly preferably 3 to 10 wt.%, most preferably 4 to 8 wt.%.

[0062] Suitable betaines are the alkyl betaines, the alkylamidobetaines, the imidazolinium betaines, the sulfobetaines (INCI Sultaines) and the phosphobetaines and preferably satisfy formula I, R 1< -[CO-X-(CH 2 ) n ] x -N +< (R 2< )(R 3< )-(CH 2 ) m- [CH(OH)-CH 2 ] y -Y -< (I) in which R 1< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, XNH, NR 4< with the C 1-4 alkyl radical R 4< , O or S, n is a number from 1 to 10, preferably 2 to 5, in particular 3, x is 0 or 1, preferably 1, R 2< , R 3< independently of one another are a C 1-4 alkyl radical, optionally hydroxy-substituted such as a hydroxyethyl radical, but in particular a methyl radical, my number is from 1 to 4, in particular 1, 2 or 3, y is 0 or 1 and YCOO, SO 3 , OPO(OR 5< )O or P(O)(OR 5< )O, where R 5< is a hydrogen atom, H or a C 1-4 alkyl radical The alkyl and alkylamidobetaines, betaines of formula (I) with a carboxylate group (Y - = COO - ), are also called carbobetaines.

[0063] Preferred amphoteric surfactants are the alkyl betaines of the formula (Ia), the alkylamidobetaines of the formula (Ib), the sulfobetaines of the formula (Ic) and the amidosulfobetaines of the formula (Id), R 1< -N +< (CH 3 ) 2 -CH 2 COO -< (Ia) R 1< -CO-NH-(CH 2 ) 3 -N +< (CH 3 ) 2 -CH 2 COO -< (Ib) R 1< +N +< (CH 3 ) 2 -CH 2 CH(OH)CH 2 SO 3 -< (Ic) R 1< CO-NH-(CH 2 ) 3 -N +< (CH 3 ) 2 -CH 2 CH(OH)CH 2 SO 3 -< (Id) in which R 1< has the same meaning as in formula (I).

[0064] Particularly preferred amphoteric surfactants are the carbobetaines, in particular the carbobetaines of formula (Ia) and (Ib), most preferably the alkylamidobetaines of formula (Ib).

[0065] Examples of suitable betaines and sulfobetaines are the following according to INCIbenannten Verbindungen: Almondamidopropyl Betaine, Apricotamidopropyl Betaine, Avocadamidopropyl Betaine, Babassuamidopropyl Betaine, Behenamidopropyl Betaine, Behenyl Betaine, Betaine, Canolamidopropyl Betaine, Capryl / Capramidopropyl Betaine, Carnitine, Cetyl Betaine, Cocamidoethyl Betaine, Cocamidopropyl Betaine, Cocamidopropyl Hydroxysultaine, Coco-Betaine, Coco-Hydroxysultaine, Coco / Oleamidopropyl Betaine, Coco-Sultaine, Decyl Betaine, Dihydroxyethyl Oleyl Glycinate, Dihydroxyethyl Soy Glycinate, Di-hydroxyethyl Stearyl Glycinate, Dihydroxyethyl Tallow Glycinate, Dimethicone Propyl PG-Betaine, Erucamidopropyl Hydroxysultaine, Hydrogenated Tallow Betaine, Isostearamidopropyl Betaine, Lauramidopropyl Betaine, Lauryl Betaine, Lauryl Hydroxysultaine, Lauryl Sultaine, Milkamidopropyl Betaine, Minkamidopropyl Betaine, Myristamidopropyl Betaine, Myristyl Betaine, Oleamidopropyl Betaine, Oleamidopropyl Hydroxysultaine, Oleyl Betaine, Olivamidopropyl Betaine, Palmamidopropyl Betaine,Palmitamidopropyl Betaine, Palmitoyl Carnitine, Palm Kerneamidopropyl Betaine, Polytetrafluoroethylene Acetoxypropyl Betaine, Ricinoleamidopropyl Betaine, Sesamidopropyl Betaine, Soyamidopropyl Betaine, Stearamidopropyl Betaine, Stearyl Betaine, Tallowamidopropyl Betaine, Tallowamidopropyl Hydroxysultaine, Tallow Betaine, Tallow Dihydroxyethyl Betaine, Undecylenamidopropyl Betaine, and Wheat Germamidopropyl Betaine. A preferred betaine, for example, is Cocamidopropyl Betaine (Cocoamidopropyl Betaine).

[0066] The alkylamidoalkylamines (INCI Alkylamido alkylamines) are amphoteric surfactants of the formula (III), R 9< -CO-NR 10< -(CH 2 ) i -N(R 11< )-(CH 2 CH 2 O) j -(CH 2 ) k -[CH(OH)] l -CH 2 -Z-OM (III) in which R 9< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, R 10< is a hydrogen atom H or a C 14 alkyl radical, preferably H, i is a number from 1 to 10, preferably 2 to 5, in particular 2 or 3, R 11< is a hydrogen atom H or CH 2 COOM (for M see below), j is a number from 1 to 4, preferably 1 or 2, in particular 1, no number from 0 to 4, preferably 0 or 1, l0 or 1, where k = 1 when l = 1, ZCO, SO 2 , OPO(OR 12< ) or P(O)(OR 12< ), where R 12< is a C 1-4 alkyl radical or M (see below), and M is hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, for example protonated mono-, di- or triethanolamine.

[0067] Preferred representatives satisfy the formulas IIIa to IIId, R 9< -CO-NH-(CH 2 ) 2 -N(R 11< )-CH 2 CH 2 O-CH 2 -COOM (IIIa) R 9< -CO-NH-(CH 2 ) 2 -N(R 11< )-CH 2 CH 2 O-CH 2 CH 2 -COOM (IIIb) R 9< -CO-NH-(CH 2 ) 2 -N(R 11< )-CH 2 CH 2 O-CH 2 CH(OH)CH 2 -SO 3 M (IIIc) R 9< -CO-NH-(CH 2 ) 2 -N(R 11< )-CH 2 CH 2 O-CH 2 CH(OH)CH 2 -OPO 3 HM (IIId) in which R 9< , R 11< and M have the same meaning as in formula (III).

[0068] Exemplary alkylamidoalkylamines are the following according to INCIbenannten Verbindungen: Cocoamphodipropionic Acid, Cocobetainamido Amphopropionate, DEA-Cocoamphodipropionate, Disodium Caproamphodiacetate, Disodium Caproamphodipropionate, Disodium Capryloamphodiacetate, Disodium Capryloamphodipropionate, Disodium Cocoamphocarboxyethylhydroxypropylsulfonate, Disodium Cocoamphodiacetate, Disodium Cocoamphodipropionate, Disodium Isostearoamphodiacetate, Disodium Isostearoamphodipropionate, Disodium Laureth-5 Carboxyamphodiacetate, Disodium Lauroamphodiacetate, Disodium Lauroamphodipropionate, Disodium Oleoamphodipropionate, Disodium PPG-2-Isodeceth-7-Carboxyamphodiacetate, Disodium Stearoamphodiacetate, Disodium Tallowamphodiacetate, Disodium Wheatgermamphodiacetate, Lauroamphodipropionic Acid, Quaternium-85, Sodium Caproamphoacetate, Sodium Caproamphohydroxypropylsulfonate, Sodium Caproamphopropionate, Sodium Capryloamphoacetate, Sodium Capryloamphohydroxypropylsulfonate, Sodium Capryioamphopropionate, Sodium Cocoamphoacetate,Sodium Cocoamphohydroxypropylsulfonate, Sodium Cocoamphopropionate, Sodium Cornamphopropionate, Sodium Isostearoamphoacetate, Sodium Isostearoamphopropionate, Sodium Lauroamphoacetate, Sodium Lauroamphohydroxypropylsulfonate, Sodium Lauroampho PG-Acetate Phosphate, Sodium Lauroamphopropionate, Sodium Myristoamphoacetate, Sodium Oleoamphoacetate, Sodium Oleoamphohydroxypropylsulfonate, Sodium Oleoamphopropionate, Sodium Ricinoleoamphoacetate, Sodium Stearoamphoacetate, Sodium Stearoamphohydroxypropylsulfonate, Sodium Stearoamphopropionate, Sodium Tallamphopropionate, Sodium Tallowamphoacetate, Sodium Undecylenoamphoacetate, Sodium Undecylenoamphopropionate, Sodium Wheat Germamphoacetate und Trisodium Lauroampho PG-Acetate Chloride Phosphate.,

[0069] Erfindungsgemäß bevorzugte alkylsubstituierte Aminosäuren (INCI Alkyl-Substituted Amino Acids) sind monoalkylsubstituierte Aminosäuren gemäß Formel (IV),         R 13< -NH-CH(R 14< )-(CH 2 ) u -COOM'     (IV) in which R 13< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, R 14< is a hydrogen atom H or a C 1-4 alkyl radical, preferably H, u is a number from 0 to 4, preferably 0 or 1, in particular 1, and M' is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, for example protonated mono-, di- or triethanolamine, alkyl-substituted imino acids according to formula (V), R 15 -N-[(CH 2 ) v -COOM"] 2 (V) in which R 15< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, a number from 1 to 5, preferably 2 or 3, in particular 2, and M" is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, for example protonated mono-, di- or triethanolamine, where M" in the two carboxy groups can have the same or two different meanings, for example can be hydrogen and sodium or twice sodium, and mono- or dialkyl-substituted natural amino acids according to formula (VI), R 16 -N(R 17 )-CH(R 18 )-COOM‴ (VI) in which R 16< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, R 17< is a hydrogen atom or a C 1-4 alkyl radical, optionally hydroxy- or amine-substituted, for example a methyl, ethyl, hydroxyethyl or aminopropyl radical, R 18< is the radical of one of the 20 natural α-amino acids H 2 NCH(R 18< )COOH, and M"' is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, for example protonated mono-, di- or triethanolamine.

[0070] Particularly preferred alkyl-substituted amino acids are the aminopropionates according to formula (IVa), R 13< -NH-CH 2 CH 2 COOM' (IVa) in which R 13< and M' have the same meaning as in formula (IV).

[0071] Exemplary alkyl-substituted amino acids are the following according to INCIbenannten Verbindungen: Aminopropyl Laurylglutamine, Cocaminobutyric Acid, Cocaminopropionic Acid, DEA-Lauraminopropionate, Disodium Cocaminopropyl Iminodiacetate, Disodium Dicarboxyethyl Cocopropylenediamine, Disodium Lauriminodipropionate, Disodium Steariminodipropionate, Disodium Tallowiminodipropionate, Lauraminopropionic Acid, Lauryl Aminopropylglycine, Lauryl Diethylenediaminoglycine, Myristaminopropionic Acid, Sodium C12-15 Alkoxypropyl Iminodipropionate, Sodium Cocaminopropionate, Sodium Lauraminopropionate, Sodium Lauriminodipropionate, Sodium Lauroyl Methylaminopropionate, TEA-Lauraminopropionate und TEA-Myristaminopropionate.

[0072] Acylated amino acids are amino acids, in particular the 20 natural α-amino acids, which carry the acyl radical R 19< CO of a saturated or unsaturated fatty acid R 19< COOH on the amino nitrogen atom, where R 19< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical. The acylated amino acids can also be used as alkali metal salt, alkaline earth metal salt or alkanolammonium salt, for example mono-, di- or triethanolammonium salt. Exemplary acylated amino acids are those according to INCI Acyl derivatives grouped under amino acids, for example sodium cocoyl glutamate, lauroyl glutamic acid, capryloyl glycine or myristoyl methylalanine.

[0073] Particularly preferred amphoteric surfactants are biosurfactants. Biosurfactants are surfactant molecules that can be produced from renewable raw materials, such as vegetable oil and sugar substrates.

[0074] Preferred biosurfactants are glycolipids, which are commercially available, for example, under the trade name Sophoclean® (Givandan) or Rewoferm® SL 446 (Evonik). The glycolipid preferably comprises a rhamnolipid and / or a sophorolipid. Cellobiose lipids, mannosylerythritol lipids, and trehalose lipids are also preferred.

[0075] Glycolipids not only have a cleansing surfactant effect but also exhibit a preservative effect, as described in WO 2013 / 037977 A1. Furthermore, they are based on renewable raw materials. Biosurfactants, and in particular glycolipids, are therefore particularly preferred surfactants within the meaning of the present invention.

[0076] If the composition comprises a mixture of different surfactants, one of the surfactants contained in this surfactant mixture being a biosurfactant, the proportion of biosurfactant and in particular glycolipid in this surfactant mixture is 20 wt.% to 95 wt.%, in particular 35 wt.% to 80 wt.%, preferably 45 wt.% to 70 wt.%.

[0077] It is particularly advantageous to use a combination of anionic surfactant and amphoteric surfactant, especially a biosurfactant. This combination provides a particularly good cleaning effect and, in conjunction with the preferably used thickener, can also contribute to a particularly spatially stable suspension of the abrasive particles.

[0078] The agent according to the invention may additionally contain one or more non-ionic surfactants, usually in an amount of 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%.

[0079] Nonionic surfactants within the scope of the invention can be alkoxylates such as polyglycol ethers, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, end-capped polyglycol ethers, mixed ethers and hydroxy mixed ethers, and fatty acid polyglycol esters. Ethylene oxide-propylene oxide block polymers, fatty acid alkanolamides, and fatty acid polyglycol ethers can also be used. Important classes of nonionic surfactants that can be used according to the invention are also amine oxides and sugar surfactants (polyol surfactants), and among these, especially glycosurfactants such as alkyl polyglycosides and fatty acid glucamides. Alkyl polyglycosides, in particular alkyl polyglucosides, are particularly preferred.

[0080] According to the invention, fatty alcohol polyglycol ethers are understood to mean unbranched or branched, saturated or unsaturated C 10-22 alcohols alkoxylated with ethylene (EO) and / or propylene oxide (PO) and having a degree of alkoxylation of up to 30, preferably ethoxylated C 10-18 fatty alcohols having a degree of ethoxylation of less than 30, preferably having a degree of ethoxylation of 1 to 20, in particular of 1 to 12, particularly preferably of 1 to 8, extremely preferably of 2 to 5, for example C 12-14 fatty alcohol ethoxylates with 2, 3 or 4 EO or a mixture of the C 12-14 fatty alcohol ethoxylates with 3 and 4 EO in a weight ratio of 1:1 or isotridecyl alcohol ethoxylate with 5, 8 or 12 EO.

[0081] The amine oxides suitable according to the invention include alkylamine oxides, in particular alkyldimethylamine oxides, alkylamidoamine oxides, and alkoxyalkylamine oxides. Preferred amine oxides satisfy formula (II) or (IIb), R 6< R 7< R 8< N +< -O- (IIa) R 6< -[CO-NH-(CH 2 ) w ] z -N +< (R 7< )(R 8< )-O- (IIb) in which R 6< is a saturated or unsaturated C 6-22 alkyl radical, preferably C 8-18 alkyl radical, in particular a saturated C 10-16 alkyl radical, for example a saturated C 12-14 alkyl radical, which in the alkylamidoamine oxides is bonded to the nitrogen atom N via a carbonylamidoalkylene group -CO-NH-(CH 2 ) z - and in the alkoxyalkylamine oxides via an oxaalkylene group -O-(CH 2 ) z -, where z is in each case a number from 1 to 10, preferably 2 to 5, in particular 3, R 7 , R 8 independently of each other a C 1-4 -alkyl radical, optionally hydroxy-substituted such as a hydroxyethyl radical, in particular a methyl radical.

[0082] Examples of suitable amine oxides are the following according to INCIbenannten Verbindungen: Almondamidopropylamine Oxide, Babassuamidopropylamine Oxide, Behenamine Oxide, Cocamidopropyl Amine Oxide, Cocamidopropylamine Oxide, Cocamine Oxide, Coco-Morpholine Oxide, Decylamine Oxide, Decyltetradecylamine Oxide, Diaminopyrimidine Oxide, Dihydroxyethyl C 8-10 -Alkoxypropylamine Oxide, Dihydroxyethyl C 9-11 Alkoxypropylamine Oxide, Dihydroxyethyl C 12-15 - - Alkoxypropylamine Oxide, Dihydroxyethyl Cocamine Oxide, Dihydroxyethyl Lauramine Oxide, Dihydroxyethyl Stearamine Oxide, Dihydroxyethyl Tallowamine Oxide, Hydrogenated Palm Kernel Amine Oxide, Hydrogenated Tallowamine Oxide, Hydroxyethyl Hydroxypropyl C 12-15 -Alkoxypropylamine Oxide, Isostearamidopropylamine Oxide, Isostearamidopropyl Morpholine Oxide, Lauramidopropylamine Oxide, Lauramine Oxide, Methyl Morpholine Oxide, Milkamidopropyl Amine Oxide, Minkamidopropylamine Oxide, Myristamidopropylamine Oxide, Myristamine Oxide, Myristyl / Cetyl Amine Oxide, Oleamidopropylamine Oxide, Oleamine Oxide,Olivamidopropylamine Oxide, Palmitamidopropylamine Oxide, Palmitamine Oxide, PEG-3 Lauramine Oxide, Potassium Dihydroxyethyl Cocamine Oxide Phosphate, Potassium Trisphosphonomethylamine Oxide, Sesamidopropylamine Oxide, Soyamidopropylamine Oxide, Stearamidopropylamine Oxide, Stearamine Oxide, Tallowamidopropylamine Oxide, Tallowamine Oxide, Undecylenamidopropylamine Oxide und Wheat Germmidopropylamine Oxide. Ein bevorzugtes Aminoxid ist beispielsweise Cocamidopropylamine Oxide (Cocoamidopropylaminoxid).,

[0083] Sugar surfactants are known surface-active compounds, including, for example, the sugar surfactant classes of alkyl glucose esters, aldobionamides, gluconamides (sugar amides), glycerol amides, glycerol glycolipids, polyhydroxy fatty acid amide sugar surfactants (sugar amides), and alkyl polyglycosides, as described, for example, in WO 97 / 00609 (Henkel Corporation) and the publications cited therein (pages 4 to 12), which are incorporated by reference in this regard and the content of which is hereby incorporated into this application. Preferred sugar surfactants within the scope of the teaching of the invention are the alkyl polyglycosides and the sugar amides, as well as their derivatives, in particular their ethers and esters.The ethers are the products of the reaction of one or more, preferably one, sugar hydroxyl groups with a compound containing one or more hydroxyl groups, for example, C 1-22 alcohols or glycols such as ethylene and / or propylene glycol, where the sugar hydroxyl group may also carry polyethylene glycol and / or polypropylene glycol residues. The esters are the reaction products of one or more, preferably one, sugar hydroxyl groups with a carboxylic acid, in particular a C 6-22 fatty acid.

[0084] Particularly preferred sugar amides satisfy the formula R'C(O)N(R")[Z], in which R' represents a linear or branched, saturated or unsaturated acyl radical, preferably a linear unsaturated acyl radical, having 5 to 21, preferably 5 to 17, in particular 7 to 15, particularly preferably 7 to 13 carbon atoms, R" represents a linear or branched, saturated or unsaturated alkyl radical, preferably a linear unsaturated alkyl radical, having 6 to 22, preferably 6 to 18, in particular 8 to 16, particularly preferably 8 to 14 carbon atoms, a C 1-5 alkyl radical, in particular a methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl or n-pentyl radical, or hydrogen and Z represents a sugar radical, i.e. a monosaccharide radical. Particularly preferred sugar amides are the amides of glucose, the glucamides, for example lauroyl-methyl-glucamide.

[0085] The alkyl polyglycosides (APG) are particularly preferred sugar surfactants within the scope of the teaching according to the invention and preferably satisfy the general formula R 1< O(AO) a [G] x , in which R is a linear or branched, saturated or unsaturated alkyl radical having 6 to 22, preferably 6 to 18, in particular 8 to 16, particularly preferably 8 to 14 carbon atoms, [G] is a glycosidically linked sugar radical and x represents a number from 1 to 10 and AO represents an alkyleneoxy group, for example an ethyleneoxy or propyleneoxy group, and arepresents the average degree of alkoxylation from 0 to 20. Here, the group (AO) a can also contain various alkyleneoxy units, for example ethyleneoxy or propyleneoxy units, where a is the average overall degree of alkoxylation, i.e., the sum of the degrees of ethoxylation and propoxylation. Unless otherwise stated below, the alkyl radicals R 1< of the APG are linear unsaturated radicals with the stated number of carbon atoms.

[0086] APGs are non-ionic surfactants and are known substances that can be obtained by the relevant methods of preparative organic chemistry. The index number x indicates the degree of oligomerization (DP degree), i.e. the distribution of mono- and oligoglycosides, and stands for a number between 1 and 10. While x in a given connection must always be an integer and here especially the valuesx = 1 to 6, the value x for a specific alkyl glycoside, an analytically determined calculated value, which is usually a fractional number. Alkyl glycosides with a medium degree of oligomerization are preferred. x from 1.1 to 3.0. From an application perspective, alkyl glycosides with a degree of oligomerization of less than 1.7, and especially between 1.2 and 1.6, are preferred. Xylose, but especially glucose, is the preferred glycosidic sugar.

[0087] The alkyl or alkenyl radical R 1< can be derived from primary alcohols containing 8 to 18, preferably 8 to 14, carbon atoms. Typical examples are caproic alcohol, caprylic alcohol, capric alcohol, and undecyl alcohol, as well as their technical mixtures, such as those obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the hydrogenation of aldehydes from the Roelen oxo synthesis.

[0088] Preferably, the alkyl or alkenyl radical R 1< is derived from lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, or oleyl alcohol. Elaidyl alcohol, petroselinyl alcohol, arachidyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, and technical mixtures thereof should also be mentioned.

[0089] Particularly preferred APGs are not alkoxylated ( a= 0) and satisfy formula RO[G] x in which R as before represents a linear or branched, saturated or unsaturated alkyl radical having 4 to 22 carbon atoms, [G] represents a glycosidically linked sugar radical, preferably glucose radical, and x represents a number from 1 to 10, preferably 1.1 to 3, in particular 1.2 to 1.6. Accordingly, preferred alkyl polyglycosides are, for example, C 8-10 and a C 12-14 alkyl polyglucoside with a DP degree of 1.4 or 1.5, in particular C 8-10 alkyl 1,6-glucoside and C 12-14 alkyl 1,4-glucoside.

[0090] The agent according to the invention may additionally contain one or more cationic surfactants (cationic surfactants; INCIQuaternary Ammonium Compounds), usually in an amount of 0.001 to 5 wt.%, preferably 0.01 to 4 wt.%, in particular 0.1 to 3 wt.%, particularly preferably 0.2 to 2 wt.%, extremely preferably 0.5 to 1.5 wt.%, for example 1 wt.%. In a preferred embodiment, however, the use of cationic surfactants is dispensed with.

[0091] Preferred cationic surfactants are the quaternary surface-active compounds, in particular with an ammonium, sulfonium, phosphonium, iodonium or arsonium group, as for example K . H. Wallhäußerin "Practical Sterilization, Disinfection - Preservation: Germ Identification - Industrial Hygiene" (5th ed. - Stuttgart; New York: Thieme, 1995) as antimicrobial agents. By using quaternary surface-active compounds with antimicrobial effects, the agent can be given an antimicrobial effect or, if present due to other ingredients, its antimicrobial effect can be enhanced.

[0092] Particularly preferred cationic surfactants, in addition to the quaternary ammonium compounds used as drying and gloss additives, are the quaternary ammonium compounds (QAC), some of which have antimicrobial effects. INCIQuaternary Ammonium Compounds) according to the general formula (RI< )(R II< )(R III< )(R IV< )N +< X-, in which RI< to R IV< are identical or different C 1-22 alkyl radicals, C 7-28 aralkyl radicals or heterocyclic radicals, where two or, in the case of an aromatic bond such as in pyridine, even three radicals together with the nitrogen atom form the heterocycle, for example a pyridinium or imidazolinium compound, and X -< are halide ions, sulfate ions, hydroxide ions or similar anions. For optimal antimicrobial action, at least one of the radicals preferably has a chain length of 8 to 18, in particular 12 to 16, C atoms.

[0093] QACs can be prepared by reacting tertiary amines with alkylating agents such as methyl chloride, benzyl chloride, dimethyl sulfate, dodecyl bromide, and even ethylene oxide. The alkylation of tertiary amines with one long alkyl radical and two methyl groups is particularly easy; the quaternization of tertiary amines with two long radicals and one methyl group can also be carried out using methyl chloride under mild conditions. Amines with three long alkyl radicals or hydroxy-substituted alkyl radicals are less reactive and are preferentially quaternized with dimethyl sulfate.

[0094] Suitable QAVs are, for example, benzalkonium chloride (N-alkyl-N,N-dimethyl-benzyl-ammonium chloride, CAS No. 8001-54-5), benzalkonium B ( m,p-Dichlorbenzyl-dimethyl-C 12 -alkylammoniumchlorid, CAS No. 58390-78-6), Benzoxoniumchlorid (Benzyl-dodecyl-bis-(2-hydroxyethyl)-ammoniumchlorid), Cetrimoniumbromid (N-Hexadecyl-N,N-trimethyl-ammoniumbromid, CAS No. 57-09-0), Benzetoniumchlorid (N,N-Dimethyl-N-[2-[2[p- (1,1,3,3-tetramethylbutyl)phenoxy]ethoxy]ethyl]-benzylammoniumchlorid,CAS No.121-54-0), Dialkyldimethylammoniumchloride wie Di-n-decyldimethylammoniumchlorid (CAS No. 7173-51-5-5), Didecyldimethylammoniumbromid (CAS No. 2390-68-3), Dioctyldimethylammoniumchloric, 1-Cetylpyridiniumchlorid (CAS No. 123-03-5) und Thiazolinjodid (CAS No. 15764-48-1) sowie deren Mischungen. Bevorzugte QAV sind die Benzalkoniumchloride mit C 8 -C 18 -Alkylresten, insbesondere C 12 -C 14 -Alkylbenzyldimethylammoniumchlorid. Eine besonders bevorzugte QAV Kokospentaethoxymethylammoniummethosulfat (INCI PEG-5 Cocomonium Methosulfate; Rewoquat ®< CPEM).

[0095] To avoid possible incompatibilities between the antimicrobial cationic surfactants and the anionic surfactants contained in the invention, surfactants that are as anionic-surfactant-compatible and / or contain as little cationic surfactant as possible are used, or, in a particular embodiment of the invention, antimicrobial cationic surfactants are omitted entirely. Parabens, benzoic acid and / or benzoate, lactic acid and / or lactates can be used as antimicrobially active substances. Benzoic acid and / or lactic acid are particularly preferred.

[0096] The composition particularly preferably comprises salts of alkyl ether sulfates, alkyl betaines and alkylamine oxides.

[0097] The composition may further comprise at least one solvent, thickener, and / or salts. The composition may be liquid. In particular, if it is a cleaning agent for manual dishwashing, it is liquid and also transparent. In this case, the natural material and the composition itself differ in color, resulting in a transparent liquid in which whitish or opaque particles are evenly dispersed. To enable even distribution of the natural material in the composition, it preferably has a yield point. A yield point can be achieved by using thickeners, in particular polymeric thickeners, and / or salts.If the composition is liquid, it has a yield point in particular at light to medium shear, i.e. the storage modulus G' of the system is greater than the loss modulus G" at shear rates of 0.0001 to 0.1 s -1<.

[0098] In rheology, the yield point is defined as the shear stress (in Pa) below which a sample deforms exclusively or at least largely elastically, and above which irreversible, plastic deformation, i.e., flow, occurs. This yield point is usually determined by measurement with a rheometer at room temperature, i.e., a temperature of 20 °C to 25 °C, especially 25 °C. Absolute measuring rheometers, such as the AR 1000-N rheometer from Texas Instruments, enable the determination of reliable, absolute measurement values ​​independent of the measuring geometry.

[0099] According to the invention, the yield point of the liquid, surfactant-containing composition can also be measured, for example, using a rotational rheometer from TA-Instruments, type AR G2 (shear stress-controlled rheometer, cone-plate measuring system with 40 mm diameter, 2° cone angle, 20°C). This is a so-called shear stress-controlled rheometer. Here, the samples in the rheometer are subjected to a shear stress that increases over time. σ (t). For example, the shear stress can be increased from the smallest possible value (e.g. 0.01 Pa) to, for example, 100 Pa over the course of 30 minutes. As a function of this shear stress σ the deformation γ of the sample. The deformation is plotted against the shear stress in a double-logarithmic plot (log γ against log σ). If the sample under investigation has a yield point, this can be identified by a sudden change in the curve. Below a certain shear stress, a purely elastic deformation is found. The slope of the curve γ( σ ) (log-log plot) in this range is one. Above this shear stress, viscous flow begins and the slope of the curve is sharply higher. The shear stress at which the curve bends, i.e., the transition from elastic to plastic deformation, marks the yield point. A convenient determination of the yield point (= kink in the curve) is possible by drawing tangents to the two parts of the curve. Samples without a yield point do not exhibit a characteristic kink in the function γ( σ ) on.

[0100] The composition according to the invention preferably has a yield point in the range from 0.01 Pa to 10 Pa, preferably from 0.1 Pa to 5 Pa, particularly preferably from 0.5 Pa to 3 Pa.

[0101] Correspondingly liquid compositions with yield point are sufficiently described in the prior art.

[0102] The composition preferably comprises at least one thickener in a proportion of 0.001 to 5 wt.%, in particular 0.005 to 3.5 wt.%, preferably 0.01 to 2 wt.%.

[0103] In a preferred embodiment, the hand dishwashing detergent according to the invention further contains one or more water-soluble salts to reduce viscosity. These can be inorganic and / or organic salts; in a preferred embodiment, the detergent contains at least one inorganic salt.

[0104] Inorganic salts usable according to the invention are preferably selected from the group comprising colorless, water-soluble halides, sulfates, sulfites, carbonates, bicarbonates, nitrates, nitrites, phosphates, and / or oxides of alkali metals, alkaline earth metals, aluminum, and / or transition metals; ammonium salts can also be used. Halides and sulfates of alkali metals are particularly preferred; the inorganic salt is therefore preferably selected from the group comprising sodium chloride, potassium chloride, sodium sulfate, potassium sulfate, and mixtures thereof.

[0105] The organic salts usable according to the invention are, in particular, colorless, water-soluble alkali metal, alkaline earth metal, ammonium, aluminum, and / or transition metal salts of carboxylic acids. The salts are preferably selected from the group comprising formate, acetate, propionate, citrate, malate, tartrate, succinate, malonate, oxalate, lactate, and mixtures thereof.

[0106] In a preferred embodiment, the hand dishwashing detergent according to the invention contains 0.1 to 10 wt.%, preferably 0.5 to 7 wt.%, particularly preferably 0.8 to 5 wt.% of at least one water-soluble salt. In a particularly preferred embodiment, exclusively inorganic salts are used.

[0107] Depending on the thickener used, it may be desirable to additionally use electrolyte salts for stabilization. Electrolyte salts, as defined in this invention, are salts of preferably polyvalent cations with inorganic acid residues. Particularly preferred are the chlorides and sulfates of alkaline earth metals, aluminum, and zinc, especially aluminum chloride. The use of these electrolyte salts is particularly advantageous in conjunction with polysaccharide thickeners such as xanthan gum or gellan gum.

[0108] However, it is also possible that the composition is solid, for example, pasty. A yield point is not necessarily required in such a case.

[0109] When liquid, the composition preferably contains water as a solvent; the water content is in particular from 1% to 99% by weight, preferably 95% or less by weight, in particular 90% or less by weight, preferably 5% or 10% or more by weight. A liquid composition may also contain other solvents, such as short-chain alcohols. In addition, one or more auxiliaries or additives are usually also present, as are adequately described in the prior art. These are preferably selected from enzymes, UV stabilizers, perfumes, dyes, polymers, cleaning enhancers, disinfectants, antistatic agents, corrosion inhibitors, preservatives, skin protectants, and mixtures thereof.

[0110] In a further embodiment, the present invention relates to the use of natural materials as particles, in particular expanded materials or expanded glasses of natural origin, in particular perlite, with a specific density of 1 to 4, in particular 1.8 to 3, and a Mohs hardness of 4 to 6, in particular 5 to 6, as an abrasive for cleaning hard surfaces or human skin. It particularly preferably relates to the use for cleaning hard surfaces, in particular for manual cleaning of hard surfaces and in particular tableware.

[0111] In the following embodiments, the present invention is described in a non-limiting manner. Comparative compositions:

[0112] Examples of non-inventive compositions are listed below. The values ​​are given in wt.%. The total weight corresponds to 100 wt.%. C1 C2 C3 C4 Particles with hydrogel shell 0,75 0,75 0,75 0,75 Anionic surfactant (Alkyl ether sulfase 2 EO, Na salt (C 12-14 )) 8 8 8 8 Amphotenside (cocamidopropyl betaine) 2 2 2 2 NaCl 1,4 1,4 1,4 1,4 Polyacrylate polymer thickener 0,2 0,25 0,3 0,6 perfume <1 <1 <1 <1 Preservative Sodium Benzoate <1 <1 <1 <1 Water rest rest rest rest PH value 4,5 4,7 4,6 4,5

[0113] Such compositions, which use polyacrylate as a thickener, do not exhibit a satisfactory stabilizing effect for the hydrogel particles under the specified conditions. In particular, a significant turbidity is observed, indicating a lack of colloidal stabilizing effect. Compositions according to the invention:

[0114] Exemplary compositions according to the invention are given below. The values ​​are given in wt.%. The total weight corresponds to 100 wt.%. E1 E2 E3 E4 Particles with hydrogel shell 0,75 0,75 0,75 0,75 Anionic surfactant (Alkyl ether sulfase 2 EO, Na salt (C 12-14 )) 8 8 8 8 Amphotenside (cocamidopropyl betaine) 2 2 2 2 NaCl 2,0 2,0 0 0 K-acetate 0 0 1,4 2 Xanthan polymer thickener 0,2 0,25 0,3 0,35 perfume <1 <1 <1 <1 Preservative Sodium Benzoate <1 <1 <1 <1 Water rest rest rest rest PH value 4,7 4,8 4,5 4,5

[0115] Such compositions according to the invention, which employ a polysaccharide thickener, exhibit a good stabilizing effect for the hydrogel particles under the specified conditions. In particular, no clouding or sedimentation of the particles is observed. Due to the acidic pH, the composition can include sodium benzoate as a preservative, which requires an acidic environment.

[0116] The use of thickeners in a hand dishwashing composition can result in reduced flow properties of the composition. The use of potassium salts, as in Examples E3 and E4, can further improve flow properties compared to sodium chloride-containing compositions.

Claims

1. A hand dishwashing detergent composition comprising at least one surfactant; and particles of a natural material, characterized in that the particles are embedded in a hydrogel matrix; and the composition comprises a polysaccharide thickener.

2. Composition according to claim 1, characterized in that the polysaccharide thickener xanthan gum.

3. Composition according to one of the preceding claims, characterized in that the composition has a pH of at most 6, preferably of at most 5 and more preferably of 4 to 5.

4. Composition according to one of the preceding claims, characterized in that the composition comprises a potassium salt.

5. Composition according to the preceding claim, characterized in that the potassium salt is present in the composition in an amount of at least 0.05% by weight, preferably at least 0.1% by weight.

6. Composition according to one of the two preceding claims, characterized in that the potassium salt is potassium acetate.

7. Composition according to one of the preceding claims, characterized in that which contains sodium benzoate as a preservative.

8. Composition according to any one of the preceding claims, characterized in that the natural material includes pumice and / or citrate.

9. Composition according to any one of the preceding claims, characterized in that at least one surfactant is present in a proportion of 5 wt.% to 35 wt.%, in particular 8 wt.% to 15 wt.%.

10. Composition according to one of the preceding claims, characterized in that at least one surfactant is an anionic surfactant and / or a betaine.

Images