WO2019015839A1

WO2019015839A1 - Alkaline quaternary-ammonium-compound-based long-term disinfectant

Info

Publication number: WO2019015839A1
Application number: PCT/EP2018/064447
Authority: WO
Inventors: Stefan Karsten; Mirko Weide; Maike Janssen
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2017-07-21
Filing date: 2018-06-01
Publication date: 2019-01-24
Also published as: DE102017212559A1

Abstract

The invention relates to a liquid aqueous cleaning agent, comprising a) at least one cationic surfactant comprising at least one quaternary ammonium compound; b) at least one nonionic surfactant comprising at least one amine oxide; c) at least one alcohol; d) optionally additives; and e) water, which is added to 100 wt%; the sum of a) to e) being 100 wt%. The invention further relates to a method for producing said cleaning agent and to the use of a mixture of: at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol; to stabilize, to increase the microbicidal effectiveness against gram-negative bacteria or to increase the microbicidal effectiveness against yeasts and molds of liquid aqueous cleaning agents that contain at least one quaternary ammonium compound.

Description

Alkaline QAV-based long-term disinfectant

The invention relates to a liquid aqueous cleaning composition comprising a) at least one cationic surfactant comprising at least one quaternary ammonium compound; b) at least one nonionic surfactant comprising at least one amine oxide; c) at least one alcohol; d) optionally additives; and e) water added to 100% by weight, the sum of a) to e) being 100% by weight. Also included is a process for its preparation and the use of a mixture of at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol; for stabilizing, for increasing the microbicidal activity against gram-negative bacteria or for

Increasing the microbicidal activity against yeasts and molds of liquid aqueous cleaning compositions containing at least one quaternary ammonium compound.

Liquid aqueous cleaners containing QAV (quaternary ammonium compounds) are known in the art. The literature indicates that the biocidal group of QAC (e.g.

Benzalkonium chloride) the Wirkmaximum / - spectrum at pH 5 to 7 from. Within this

Nevertheless, there are deficits in the microbiological activity, for example against gram-negative bacterial strains, for example those of the genus Pseudomonas, as well as against fungi, in particular A. niger and A. brasilensis. In addition, the chemical stability of benzalkonium chloride is limited at high pH values, which precludes a customer-friendly best before date.

Surprisingly, the inventors of the present invention have found that these disadvantages of liquid aqueous detergents containing a quaternary ammonium compound by the use of a mixture of at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol can be overcome. Without wishing to be bound by any particular theory, it is assumed that this results in a self-stabilizing system which is the active spectrum of the quaternary

Ammonium compound on the one hand extended and on the other hand, the chemical stability at pH values greater than 8, preferably 10, ensures. Furthermore, the binding force of the quaternary ammonium compound to the surface is significantly increased. A first subject of this application are therefore liquid aqueous cleaning agents, hereinafter also referred to as agents according to the invention, comprising or consisting of: a) at least one cationic surfactant comprising at least one quaternary

Ammonium compound;

b) at least one nonionic surfactant comprising at least one amine oxide;

c) at least one alcohol;

d) optionally additives; and

e) water, which is added to 100 wt .-%, wherein the sum of a) to e) 100 wt .-% results.

Preferred embodiments are set forth in the dependent claims.

A second object of the present invention is a process for preparing a liquid aqueous cleaning agent according to the present invention, comprising the steps of: i) mixing the components a), b), c), e) and optionally d); and

ii) adjusting the desired pH by adding pH adjusters and optionally buffer substances.

A third object of the present invention is the use of a mixture of at least one nonionic surfactant comprising at least one amine oxide and at least one alcohol for stabilizing liquid aqueous cleaners containing at least one quaternary ammonium compound, preferably having a pH of from 8 to 13, more preferably for at least 12 months, most preferably for at least 24 months.

A fourth aspect of the present invention relates to the use of a mixture of at least one nonionic surfactant comprising at least one amine oxide and at least one alcohol for increasing the microbicidal activity against gram-negative bacteria, in particular pseudomonads and their relatives of liquid aqueous

Cleaning agents which contain at least one quaternary ammonium compound, preferably having a pH of 8 to 13.

A fifth aspect of the present invention relates to the use of a mixture of at least one nonionic surfactant comprising at least one amine oxide, and at least one alcohol for increasing the microbicidal activity against yeasts and molds of liquid aqueous cleaners which contain at least one quaternary

Contain ammonium compound, preferably with a pH of 8 to 13. The agent according to the invention can be hard, in particular for cleaning and disinfecting

Surfaces are used.

Whenever alkaline earth metals are referred to below as counterions for monovalent anions, this means that the alkaline earth metal is present only in half - as sufficient to charge balance - amount of substance as the anion.

Substances which also serve as ingredients of cosmetic products are hereinafter referred to as appropriate according to the German translation of the International Nomenclature Cosmetic Ingredient (INCI) nomenclature. Chemical compounds carry an INCI name in English, plant ingredients are listed only after Linne in Latin. So-called trivial names such as "water", "honey" or "sea salt" are also given in Latin. The translated INCI names can be found in the International Cosmetic Ingredient Dictionary and Handbook, Seventh Edition (1997), published by The Cosmetic, Toiletry and Fragrance Association (CTFA), 10110, 17 ^th Street NW, Suite 300, Washington, DC 20036, USA, and more than 9,000 INCI names, as well as references to more than 37,000 trade names and technical names

Names including their distributors from over 31 countries. The International Cosmetic Ingredient Dictionary and Handbook assigns to the ingredients one or more chemical classes, for example, "polymeric ethers", and one or more functions, for example, "surfactants-detergents," which are further explained. These may also be referred to below.

The indication CAS means that the following sequence of numbers is a name of the Chemical Abstracts Service

Unless explicitly stated otherwise, stated amounts in percent by weight (% by weight) refer to the total liquid aqueous cleaning agent. These percentages refer to active contents.

The water content of the aqueous composition according to the invention is usually 20 to 99.5% by weight, preferably 40 to 99% by weight, in particular 30 to 98% by weight.

surfactants

The composition according to the invention contains surfactants in a total amount of usually 0.5 to 50% by weight, preferably 0.8 to 25% by weight, in particular 1 to 10% by weight. Here, the term "surfactants" includes anionic, cationic, nonionic and amphoteric surfactants. The composition according to the invention comprises at least one cationic surfactant comprising at least one quaternary ammonium compound; and at least one nonionic surfactant comprising at least one amine oxide. In a preferred embodiment, further cationic and / or nonionic surfactants may be present. In a further preferred embodiment, additional amphoteric surfactants may be present. Amphoteric surfactants are disclosed in the present application under the generic term "additives." In a preferred

Embodiment is the agent according to the invention free of anionic surfactants.

Nonionic surfactants

The composition according to the invention comprises at least one amine oxide and may optionally additionally comprise one or more nonionic surfactants which are different therefrom. The

nonionic surfactants are usually present in an amount of from 0.05 to 15% by weight,

preferably from 0.25 to 10% by weight, in particular from 0.5 to 6% by weight.

Nonionic surfactants in the context of the invention are 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. Also suitable

Block polymers of ethylene oxide and propylene oxide and fatty acid alkanolamides and

Fatty acid polyglycol. Important classes of nonionic surfactants according to the invention are furthermore the amine oxides and the sugar surfactants, in particular the alkyl polyglucosides.

Fettalkoholpolyglykolether

According to the invention, fatty alcohol polyglycol ethers are to be understood as meaning ethylene (EO) and / or propylene oxide (PO) alkoxylated, unbranched or branched, saturated or unsaturated Οo-22 alcohols having a degree of alkoxylation of up to 30, preferably ethoxylated Cio-18 fatty alcohols having a degree of ethoxylation of less than 30, preferably with a degree of ethoxylation of from 1 to 20, in particular from 1 to 12, more preferably from 1 to 8, most preferably from 2 to 7, for example C10-16 fatty alcohol ethoxylates with 7 EO, Ci2-i4-fatty alcohol ethoxylates with 2, 3 or 4 EO or a mixture of the Ci2-i4 fatty alcohol ethoxylates with 3 and 4 EO in the weight ratio of 1 to 1 or isotridecyl alcohol ethoxylate with 5, 8 or 12 EO.

amine oxides

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,

R ⁶ R ⁷ R ⁸ N ⁺ -O- (II)

R ⁶ - [CO-N H- (CH ₂ ) w] z N ⁺ (R ⁷ ) (R ⁸ ) -O ^" (II)

in the R ^{6 is} a saturated or unsaturated C6-22-alkyl radical, preferably Cs -is-alkyl radical, in particular a saturated Cio-i 6-alkyl radical, for example a saturated Ci2-14-alkyl radical which in the

Alkylamidoaminoxiden via a Carbonylamidoalkylengruppe -CO-NH- (CH2) z- and in the Alkoxyalkylaminoxiden via an oxaalkylene group -0- (CH2) z- to the nitrogen atom N, wherein z is in each case a number from 1 to 10, preferably 2 to 5, in particular 3, R ⁷ , R ^{8 is} independently a C 1-4 -alkyl radical, optionally hydroxy-substituted, such as. B. is a hydroxyethyl radical, in particular a methyl radical.

Examples of suitable amine oxides are disclosed in WO 2008/046778 A1, to which reference is explicitly made. Examples of preferred amine oxides are cocamidopropylamine oxides, N-cocoalkyl N, N-dimethylamine oxide, C 16 -dimethylamine oxide, C 16 -diethylamine oxide, C 10-16 dihydrohyethylamine oxide, N-tallowkyl-N, N-dihydroxyethylamine oxide, C 10 -dimethylamine oxide

(Ammonyx® DO), myristyl / cetyldimethylamine oxide or lauryldimethylamine oxide.

sugar surfactants

Sugar surfactants are known surface-active compounds which may optionally be additionally present, to which, for example, the sugar surfactant classes of the alkyl glucose esters, aldobionamides, gluconamides (sugar acid amides), glycerolamides, glycerol glycolipids,

Polyhydroxy fatty acid amide sugar surfactants (sugar amides) and alkyl polyglycosides. Preferred sugar surfactants within the scope of the teaching according to the invention are the alkyl polyglycosides and the sugar amides and their derivatives, in particular their ethers and esters. The ethers are the products of the reaction of one or more, preferably one, sugar hydroxy group with a compound containing one or more hydroxy groups, for example C1-22 alcohols or glycols such as ethylene and / or propylene glycol, where the sugar hydroxy group also comprises polyethylene glycol and / or or may carry polypropylene glycol. The esters are the

Reaction products of one or more, preferably a, Zuckerhydroxygruppe with a carboxylic acid, in particular a C6-22 fatty acid.

sugar amides

Particularly preferred sugar amides satisfy the formula R'C (O) N (R ") [Z], in which R 'is 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 "is 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 preferred 8 to 14 carbon atoms, a Ci-5-alkyl radical, in particular a methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl or n-pentyl radical, or hydrogen and Z is a sugar residue, ie one

Monosaccharide residue, stand. Particularly preferred sugar amides are the amides of glucose, the glucamides, for example lauroyl-methyl-glucamide. Alkylpolyglykoside

The alkylpolyglycosides (APG) are particularly preferred sugar surfactants within the scope of the teaching according to the invention and preferably satisfy the general formula R'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] for a glycosidically linked sugar residue and x for a number from 1 to 10 and AO for an alkyleneoxy group, for example an ethyleneoxy or propyleneoxy group, and a represent the average degree of alkoxylation of 0 to 20. In this case, the group (AO) _{a may} also contain different alkyleneoxy units, for example ethyleneoxy or propyleneoxy units, in which case a is the average total degree of alkoxylation, ie the sum of degree of ethoxylation and degree of propoxylation. Unless otherwise stated below, the alkyl radicals R 'of the APG are linear unsaturated radicals having the stated number of carbon atoms.

APG are nonionic 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), ie the distribution of monoglycerides and oligoglycosides, and stands for a number between 1 and 10. While x in a given compound always has to be an integer, and above all the values x = 1 to 6, the value x for a given alkyl glycoside is an analytically determined arithmetic size, which is usually a fractional number. Preferably, alkyl glycosides having a mean degree of oligomerization x of 1.1 to 3.0 are used. From an application point of view, those alkyl glycosides are preferred whose Oligomensierungsgrad less than 1, 7 and in particular between 1, 2 and 1, 6 is. The glycosidic sugar used is preferably xylose, but especially glucose. The alkyl or alkenyl radical R 'can be derived from primary alcohols having 8 to 18, preferably 8 to 14 carbon atoms. Typical examples are caproic alcohol, caprylic alcohol, capric alcohol and undecyl alcohol, and technical mixtures thereof, such as those obtained during the hydrogenation of technical fatty acid methyl esters or in the hydrogenation of aldehydes from ROELEN's oxosynthesis.

Preferably, however, the alkyl or alkenyl radical R 'is derived from lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol or oleyl alcohol. Furthermore, elaidyl alcohol, Petroselylalkohol, arachidyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and their technical mixtures may be mentioned.

Particularly preferred APG are not alkoxylated (a = 0) and satisfy the formula RO [G] x, in which R is as previously described for a linear or branched, saturated or unsaturated alkyl radical having 4 to 22 carbon atoms, [G] for a glycosidically linked sugar radical, preferably glucose residue, and x is a number from 1 to 10, preferably 1, 1 to 3, in particular 1, 2 to 1, 6, stand.

Correspondingly preferred alkylpolyglycosides are, for example, cocoa- and C12-14-alkylpolyglucoside having a DP degree of 1, 4 or 1.5, in particular C8-io-alkyl-1, 5-glucoside and C12-14-alkyl-1 , 4-glucoside.

A likewise particularly suitable class of nonionic surfactants are so-called biosurfactants, which are glycolipids of microbial origin, for example

Sophorolipids, rhamnolipids, glucoselipids, cellobioselipids or trehaloselipids.

Glycolipids in the narrow sense are compounds in which one or more

Monosaccharide units are glycosidically linked to a lipid moiety. They belong to the biosurfactants, which are surfactants of microbial origin, which can be produced on the basis of vegetable oil or sugar substrates. For example, sophorolipids are produced by fermentation using yeasts such as Candida bombicola (also known as Torulopsis bombicola), Yarrowia lipolytica, Candida apicola (Torulopsis apicola) and Candida bogoriensis, growing them on sugars, hydrocarbons, vegetable oils or mixtures thereof. The sophorolipid available from Soliance under the trade name Sopholiance S is obtained, for example, by fermentation of Candida bombicola on rapeseed oil methyl ester and glucose. On the other hand, rhamnolipids are obtained from bacteria of the genus Pseudomonas, in particular from Pseudomonas aeruginosa, preferably when grown on hydrophobic substrates such as n-alkanes or vegetable oils. Other glycolipids, such as glucoselipids, cellobioselipids or trehaloselipids, will be replaced by others

Microorganisms produced on different substrates.

The agent according to the invention contains in a preferred embodiment a glycolipid biosurfactant selected from the group comprising sophorolipids, rhamnolipids, glucoselipids, cellobioselipids, trehaloselipids and mixtures thereof. Particular preference is given to using sophorolipids and / or rhamnolipids. A preferred sophorolipid is Sopholiance S (ex Soliance). Glycolipids are preferably used in amounts of 0.0002 to 8 wt .-%, preferably 0.01 to 5 wt .-%, particularly preferably 0.02 to 1 wt .-%.

Further suitable nonionic surfactants are in particular Cio-i4 fatty alcohol + 1, + 2PO 6,4EO (Dehydol® 980), Ci ₂ / i4 fatty alcohol + 6EO (Dehydol® LS6), C ₈ fatty alcohol + 1, + 2PO 9EO ( Dehydol® 010), Ci6 / 2o-Guerbetalkohol + 8EO, n-butyl-sealed (Dehypon® G2084), mixture of several n-butyl-closed nonionic surfactants and Cs / io-APG (Dehypon® Ke 2555), Ce / io- fatty alcohol + 1 PO + 22EO- (2-hydroxydecyl) ether (Dehypon® Ke 3447), C 12/14 fatty alcohol + 5EO + 4PO (Dehypon® LS 54 G), Ci ₂ / i4 fatty alcohol + 5EO + 3PO, methyl closed (Dehypon® LS 531), _Ci2 / 14 fatty alcohol + 10EO, n-butyl closed (Dehypon® LS 104 L), Cn oxo alcohol + 8EO (Genapol® UD 088), C ₃ -oxo alcohol + 8EO (Genapol ® X 089), Ci ₃ / i5 fatty alcohol EO adduct, n-butyl-closed (Plurafac® LF 221) and alkoxylated fatty alcohol (Tegotens® EC1 1).

Cationic surfactants

The agent of the invention contains one or more cationic surfactants comprising a quaternary ammonium compound. The total amount of cationic surfactant is usually from 0.001 to 5% by weight, preferably 0.01 to 4% by weight, in particular 0.1 to 3% by weight, particularly preferably 0.2 to 2% by weight, very preferably 0, 5 to 1, 5% by weight, for example 1% by weight.

In addition to the quaternary ammonium compounds, it is also possible to additionally contain quaternary surface-active compounds having a sulfonium, phosphonium, iodonium or arsonium group. Through the use of quaternary surface-active compounds with antimicrobial action, the agent can be designed with an antimicrobial effect or its possibly existing antimicrobial effect due to other ingredients can be improved.

Particularly preferred quaternary ammonium compounds (QAV, INCI: Quaternary Ammonium

Compounds) have the following general formula:

(R ') (R ") (R"') ( ^R'V ) N ⁺ X-,

in the R 'to R ^IV identical or different C-22-alkyl radicals, C7-28-aralkyl radicals or heterocyclic radicals, where two or in the case of an aromatic inclusion as in pyridine even three radicals together with the nitrogen atom, the heterocycle, for example a pyridinium or

Imidazolinium compound, and X ^"are halide ions, sulfate ions, hydroxide ions or similar anions For optimum antimicrobial activity, preferably at least one of the radicals has a chain length of 8 to 18, in particular 12 to 16, carbon atoms.

QACs are prepared by reacting tertiary amines with alkylating agents, e.g. Methyl chloride, benzyl chloride, dimethyl sulfate, dodecyl bromide, but also ethylene oxide produced. The alkylation of tertiary amines with a long alkyl radical and two methyl groups is particularly easy, the quaternization of tertiary amines with two long radicals and one methyl group can be carried out with the aid of methyl chloride under mild conditions. Amines having three long alkyl radicals or hydroxy-substituted alkyl radicals are less reactive and are preferably quaternized with dimethyl sulfate.

Examples of preferred QACs are benzalkonium chloride (N-alkyl-N, N-dimethylbenzylammonium chloride, CAS No. 8001-54-5), benzalkone B (m, p-dichlorobenzyl-dimethyl-C 1-2 -alkylammonium chloride, CAS No. 58390-78-6). , Benzoxonium chloride (benzyl-dodecyl-bis (2-hydroxyethyl) -ammonium chloride), cetrimonium bromide (N-hexadecyl-N, N-trimethyl- ammonium bromide, CAS No 57-09-0), benzetonium chloride (N, N-dimethyl-N- [2- [2- [p- (1,1,3,3-tetramethylbutyl) phenoxy] ethoxy] ethyl] benzyl ammonium chloride, CAS No 121 -54-0),

Dialkyldimethylammonium chloride such as di-n-decyldimethylammonium chloride (CAS No 7173-51 -5-5), didecyldimethylammonium bromide (CAS No 2390-68-3), dioctyldimethylammonium chloride, 1-cetylpyridinium chloride (CAS No 123-03-5) and thiazoline iodide (CAS No 15764 -48-1) and mixtures thereof. Preferred QACs are the benzalkonium chlorides having Cs -is-alkyl radicals, in particular C 12-14-alkylbenzyldimethylammonium chloride. A particularly preferred QAC is

Cocospentaethoxymethylammonium methosulfate (INCI PEG-5 Cocomonium Methosulfate, Rewoquat® CPEM).

Further suitable cationic surfactants are in particular anionic surfactants compatible cationic surfactants such as quaternary ammonium compounds, for example

Cocospentaethoxymethylammonium methosulfate (INCI: PEG-5 Cocomonium Methosulfate, Rewoquat® CPEM).

In order to avoid possible incompatibilities of the cationic surfactants according to the invention with anionic surfactants cationic surfactant compatible as possible and / or as little anionic surfactant as possible or omitted in a particular embodiment of the invention entirely on anionic surfactants.

solvent

The agent of the invention contains at least one alcohol, usually in an amount of 0.01 to 10 wt .-%, preferably 0, 1 to 5 wt .-%, more preferably 0.5 to 2.5 wt .-%. In a preferred embodiment, the alcohol is selected from monoalcohols, especially C1-12 alcohols or mixtures thereof, preferably methanol, ethanol, n-propanol or iso-propanol or mixtures thereof, most preferably the alcohol is ethanol. In one embodiment, it may advantageously additionally comprise one or more water-soluble organic solvents other than alcohol, usually in an amount of from 0.1 to 30% by weight, preferably from 0.2 to 10% by weight, in particular from 0.25 to 5 % By weight, more preferably 0.5 to 3.5% by weight. The additional solvents other than alcohol are additives in the present invention.

Other additives

In addition to the components mentioned so far, the compositions according to the invention may contain further additives. These include, for example, amphoteric surfactants, microcapsules, additives for

Improvement of the drainage and drying behavior, for the adjustment of the viscosity, for

Stabilization and other auxiliaries and additives customary in detergents, for example UV stabilizers, solvents other than alcohol, perfume, pearlescing agents, dyes, Corrosion inhibitors, preservatives, organic salts, disinfectants, enzymes and pH adjusters.

The solvent other than alcohol is used in the context of the teaching according to the invention as needed in particular as a hydrotrope, viscosity regulator and / or cold stabilizer. It acts solubilizing, especially for surfactants and electrolyte as well as perfume and dye and thus contributes to their incorporation, prevents the formation of liquid-crystalline phases and has a share in the formation of clear products. The viscosity of the agent according to the invention decreases with increasing amount of solvent. However, too much solvent can cause excessive viscosity drop. Finally, decreases with increasing amount of solvent of

Haze and clear point of the composition according to the invention.

Suitable additional solvents are, for example, saturated or unsaturated, preferably saturated, branched or unbranched C 20 -hydrocarbons, preferably C 2-15 -hydrocarbons, having at least one hydroxyl group and one or more

Ether functions C-O-C, i. the carbon atom chain interrupting oxygen atoms.

Preferred solvents are the - one-sided etherified with a Ο-6-alkanol - C2-6- alkylene glycols and poly-C2-3-alkylene glycol having an average of 1 to 9 identical or different, preferably identical, alkylene glycol groups per molecule. Further exemplary solvents are disclosed in WO 2008/046778 A1, to which reference is explicitly made. Further preferred solvents are alkanolamines, in particular monoethanolamine.

Particularly preferred further solvents are the unilaterally etherified with a Ο-6-alkanol poly-C2-3-alkylene glycol having an average of 1 to 9, preferably 2 to 3, ethylene or propylene glycol groups, for example PPG-2 methyl ether (dipropylene glycol monomethyl ether). Preferably, the further solvent is selected from the group comprising ethylene glycol, propylene glycol and mixtures thereof.

As a solubilizer, in particular for perfume and dyes, for example, alkanolamines and alkylbenzenesulfonates having 1 to 3 carbon atoms in the alkyl radical can be used in addition to the solvents described above.

Water-soluble salts

The cleaning agent according to the invention may further comprise one or more water-soluble salts which serve, for example, for adjusting the viscosity. It can be about

inorganic and / or organic salts, in a preferred embodiment, the agent contains at least one inorganic salt. Inorganic salts which can be used according to the invention are preferably selected from the group consisting of colorless water-soluble halides, sulfates, sulfites, carbonates,

Bicarbonates, nitrates, nitrites, phosphates and / or oxides of the alkali metals, the

Alkaline earth metals, aluminum and / or transition metals, also ammonium salts can be used. Particularly preferred are halides and sulfates of the alkali metals, preferably the inorganic salt is therefore selected from the group comprising

Sodium chloride, potassium chloride, sodium sulfate, potassium sulfate and mixtures thereof.

The organic salts which can be used according to the invention are, in particular, colorless water-soluble alkali metal, alkaline earth metal, ammonium, aluminum and / or transition metal salts of the carboxylic acids. Preferably, the salts are selected from the group comprising formate, acetate, propionate, citrate, malate, tartrate, succinate, malonate, oxalate, lactate and mixtures thereof. A particularly preferred salt is the as

Skin-friendly known lactate, which can both counteract the drying of the skin as well as prevent skin irritation and also has an antibacterial activity.

Anionic surfactants

Suitable anionic surfactants which may additionally be present are in particular the

Alkyl ether sulfates and secondary alkanesulfonates. In addition, however, aliphatic sulfates such as fatty alcohol sulfates, monoglyceride sulfates and ester sulfonates (sulfo fatty acid esters),

Lignosulfonates, alkylbenzenesulfonates, fatty acid cyanamides, anionic

Sulfosuccinic acid surfactants, fatty acid isethionates, acylaminoalkanesulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates. The composition of the invention may contain anionic surfactants in amounts of 0.1 to 10% by weight.

However, the agent according to the invention is particularly preferably free from anionic surfactants.

Amphoteric surfactants

Betaine

Suitable betaines are the alkylbetaines, the alkylamidobetaines, the imidazoliumbetaines, the sulfobetaines (INCI: sultaines) and the phosphobetaines and preferably satisfy formula I, R - [CO-X- (CH 2) n] x N ⁺ (R ² ) (R ³ ) - (CH ₂ ) m - [CH (OH) -CH ₂ ] yY- (I) in the

R is a saturated or unsaturated C6-22-alkyl radical, preferably Cs -is-alkyl radical, in particular a saturated Cio-16-alkyl radical, for example a saturated C12-14-alkyl radical,

X is NH, NR ⁴ with a Ci- ₄ alkyl group 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 1-6 -alkyl radical, optionally hydroxy-substituted, such as, for example

Hydroxyethyl radical, but especially a methyl radical, m is a number from 1 to 4, in particular 1, 2 or 3,

y is 0 or 1 and

Y COO, S0 _3, OPO (OR ⁵⁾ or 0 P (0) (OR ⁵⁾ 0, wherein R ⁵ is a hydrogen atom H or a Ci- ₄ - alkyl radical.

The alkyl and alkyl amido betaines of the formula I with a carboxylate group (Y = COO ^~ ^"), are also called carbobetaines.

Preferred betaines are the alkylbetaines of the formula (Ia), the alkylamidobetaines of the formula (Ib) are the sulfobetaines of the formula (Ic) and the amidosulfobetaines of the formula (Id)

R is -N ⁺ (CH ₃ ) 2 -CH ₂ COO- (la)

R is -CO-NH- (CH ₂ ) 3 -N ⁺ (CH ₃ ) 2 -CH ₂ COO- (lb)

R is -N ⁺ (CH ₃ ) 2 -CH ₂ CH (OH) CH ₂ SO 3 - (lc)

R is -CO-NH- (CH ₂ ) 3 -N ⁺ (CH ₃ ) 2 -CH 2 CH (OH) CH 2 SO ₃ - (Id) in which R has the same meaning as in formula I.

Particularly preferred betaines are the carbo-betaines, in particular the carbo-betaines of the formula (Ia) and (Ib), most preferably the alkylamido-betaines of the formula (Ib).

Examples of suitable betaines and sulfobetaines are e.g. in WO 2008/046778 A1, to which reference is explicitly made. A preferred betaine is, for example

Cocoamidopropyl betaine or betaine, which is commercially available under the trade name Tego® Natural Betaine from Evonik.

The agent according to the invention may contain one or more betaines in an amount of preferably 0.1 to 15% by weight, more preferably 1 to 10% by weight, in particular 2 to 5% by weight.

Other amphoteric surfactants

The amphoteric surfactants (amphoteric surfactants, zwitterionic surfactants) which can be used according to the invention include 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.

alkylamidoalkylamines

The alkylamidoalkylamines (INCI: alkylamido alkylamines) are amphoteric surfactants of the formula (III)

R ⁹ -CO-NR ⁰ - (CH 2) _i --N (R) - (CH 2 CH 2 O) j (CH 2) k - [CH (OH)] ₁ --CH 2 --Z - OM (III) in the

R ^{9 is} a saturated or unsaturated C 6-22 -alkyl radical, preferably C 1 -is-alkyl radical, in particular a saturated C 16 -alkyl radical, for example a saturated C 12-14 -alkyl radical,

R ^{0 is} a hydrogen atom H or a C 1-4 -alkyl radical, preferably H,

i is a number from 1 to 10, preferably 2 to 5, in particular 2 or 3, R is a hydrogen atom H or CH 2 COOM (M is defined as follows),

j is a number from 1 to 4, preferably 1 or 2, in particular 1,

k is a number from 0 to 4, preferably 0 or 1,

I 0 or 1, where k = 1, if I = 1,

Z is CO, SO2, OPO (OR ¹²⁾ or P (0) (OR ^12), wherein R ² is a Ci- ₄ alkyl or M (defined as follows), and

M is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, e.g. protonated mono-, di- or triethanolamine.

Preferred representatives satisfy the formulas IIIa to IIId,

R ⁹ -CO-NH- (CH 2) 2 -N (R) -CH ₂ CH ₂ O-CH ₂ -COOM (purple)

R ⁹ -CO-NH- (CH _{2) 2} -N (R) -CH ₂ CH 20 -CH ₂ CH ₂ -COOM (IIIb)

R ⁹ -CO-NH- (CH ₂ ) 2 -N (R) -CH ₂ CH ₂ O-CH ₂ CH (OH) CH ₂ -SO 3 M (Never)

R ^{9 is} -CO-NH- (CH ₂ ) 2 -N (R) -CH ₂ CH ₂ O -CH ₂ CH (OH) CH ₂ -O-OP 3 HM (IIId) in which R and M have the same meaning as in formula (III).

Exemplary suitable alkylamidoalkylamines are, for example, those disclosed in WO 2008/046778 A1, to which reference is explicitly made.

Also suitable amphoteric surfactants are in particular

Sodium carboxyethyl cocophosphoethyl imidazoline (Phosphoteric® TC-6), Cs / i-amidopropyl betaine (INCI: Capryl / Capramidopropyl Betaine, Tego® Betaine 810), N-2-hydroxyethyl-N-carboxymethyl fatty acid amidoethylamine-Na (Rewoteric® AMV) and N-capryl / Caprin-amidoethyl-N-ethyl ether propionate-Na (Rewoteric® AMVSF) and the betaine 3- (3-cocoamido-propyl) -dimethylammonium 2-hydroxypropanesulfonate (INCI: Sultaine, Rewoteric® AM CAS) and the alkylamidoalkylamine N- [N '(N "-2-Hydroxyethyl-N" -carboxyethylaminoethyl] -acetic acid amide-N, N-dimethyl-N-coco-ammoniumbetaine Rewoteric® QAM 50).

Alkyl substituted amino acids

Alkyl-substituted amino acids which are preferred according to the invention are monoalkyl-substituted

Amino acids according to formula (IV),

R ³ -NH-CH (R ⁴ ) - (CH ₂ ) u-COOM '(IV)

in the

R ^{3 is} a saturated or unsaturated C6-22-alkyl radical, preferably Cs -is-alkyl radical, in particular a saturated Cio-16-alkyl radical, for example a saturated C 12-14 -alkyl radical, R ⁴

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 ⁵ -N - [(CH ₂ ) v -COOM "] 2 (V) in the

R ^{5 is} a saturated or unsaturated C 6-22 -alkyl radical, preferably C 1 -is-alkyl radical, in particular a saturated C 16 -alkyl radical, for example a saturated C 12-14 -alkyl radical,

v is a number from 1 to 5, preferably 2 or 3, in particular 2, and

M "represents 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 may have the same or different meanings, e.g. Hydrogen and sodium or twice sodium may be

and mono- or dialkyl-substituted natural amino acids according to formula (VI),

R ⁶ -N (R ⁷ ) -CH (R ⁸ ) -COOM "'(VI) in the

R ^{6 is} a saturated or unsaturated C6-22-alkyl radical, preferably Cs-is-alkyl radical, in particular a saturated Cio-16-alkyl radical, for example a saturated C 12-14 -alkyl radical, R ⁷

Hydrogen atom or a Ci-4-Alkylrest, if necessary hydroxy- or amine-substituted, e.g. a methyl, ethyl, hydroxyethyl or aminopropyl radical,

R ^{8 is} the residue of one of the 20 natural α-amino acids H ₂ NCH (R ⁸ ) COOH, and M '"is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, eg protonated mono-, di- or triethanolamine.

Particularly preferred alkyl-substituted amino acids are the aminopropionates according to formula (IVa),

R ^{3 is} -NH-CH ₂ CH ₂ COOM '(IVa) in the

R ³ and M 'have the same meaning as in formula (IV).

Exemplary suitable alkyl-substituted amino acids are disclosed in WO 2008/046778 A1, to which reference is explicitly made.

Acylated amino acids

Acylated amino acids are amino acids, in particular the 20 natural α-amino acids which carry on the amino nitrogen the acyl radical R ⁹ CO of a saturated or unsaturated fatty acid R ⁹ COOH, where R ^{9 is} a saturated or unsaturated C 6-22 -alkyl radical, preferably Cs-is-alkyl radical , in particular a saturated Cio-16-alkyl radical, for example a saturated C 12-14 -alkyl radical. The acylated amino acids may also be used as alkali metal salt, alkaline earth metal salt or

Alkanolammonium salt, e.g. Mono-, di- or Triethanolammoniumsalz be used.

Exemplary acylated amino acids are those listed under INCI under Acids: acyl derivatives, e.g. Sodium cocoylglutamate, lauroylglutamic acid, capryloylglycine or

Myristoylmethylalanin. Amphotensidkombinationen

In a particular embodiment of the invention, a combination of two or more different amphoteric surfactants, in particular a binary Amphotensidkombination is used. The amphoteric surfactant combination preferably contains at least one betaine, in particular at least one alkylamidobetaine, more preferably cocoamidopropylbetaine. Furthermore, the amphoteric surfactant combination preferably contains at least one amphoteric surfactant from the group comprising sodium carboxyethyl cocosphoethyl imidazoline (Phosphoteric® TC6), cocoamidopropyl betaine (INCI: caprylic / capramidopropyl betaine, Tego® Betaine 810), N-2-hydroxyethyl-N-carboxymethyl fatty acid amido ethylamine-Na (Rewoteric® AMV) and N-capryl / caprinamidoethyl-N-ethyl ether-propionate-Na (Rewoteric® AMVSF) and the betaine 3- (3-cocoamido-propyl) -dimethylammonium-2-hydroxypropanesulfonate (INCI: Sultaine , Rewoteric® AM CAS) and the alkylamidoalkylamine N- [N '(N "-2-hydroxyethyl-N" -carboxyethylaminoethyl) -acetic acid amido] -N, N-di-methyl-N-coco-ammonium betaine (Rewoteric® QAM 50) , in particular together with cocoamidopropylbetaine.

In a further particular embodiment, the agent according to the invention may contain one or more amphoteric surfactants in an amount of more than 0.1% by weight and less than 8% by weight, preferably less than 5% by weight, less than 3% by weight. contain.

Polymers suitable as additives are, in particular, maleic acid-acrylic acid copolymer Na salt (Sokalan® CP 5), modified polyacrylic acid Na salt (Sokalan® CP 10), modified

Polycarboxylate Na salt (Sokalan® HP 25), polyalkylene oxide, modified heptamethyltrisiloxane (Silwet® L77), polyalkylene oxide, modified heptamethyltrisiloxane (Silwet® L-7608) and polyethersiloxanes (copolymers of polymethylsiloxanes with ethylene oxide / propylene oxide segments (polyether blocks)), preferably water-soluble linear polyethersiloxanes with terminal polyether blocks such as Tegopren® 5840, Tegopren® 5843, Tegopren® 5847, Tegopren® 5851, Tegopren® 5863 or Tegopren® 5878.

The skin feel positively affecting agents

The agent according to the invention may contain one or more active ingredients which have a positive effect on the skin. These are understood as meaning those raw materials which bring about a sensory effect, ie a positive skin feel, such as smoother skin or a lower feeling of dryness on the skin, as well as active ingredients with positive biological effects such as skin calming or skin protection. As the skin positively influencing active ingredients in the context of this invention, for example, soothing, soothing, smoothing, anti-inflammatory or antioxidant effective

Plant extracts and vitamins, but also bisabolol, allantoin, nourishing wax dispersions, nourishing polymers and other used in cosmetic care and conditioning agents and mixtures serve. The sensory, the skin feel positive influencing agents in the context of this invention, the effect of which is usually already quite short term and after one or a few applications palpable, can be divided mainly into two groups, the quaternary polymers and the skin affine refatting agents. The quaternary polymers may be synthetic or natural or modified natural polymers. Such compounds are disclosed in WO 2008/046778 A1, which is hereby incorporated by reference. The sensory active substances are preferably present in amounts of from 0.01 to 8% by weight, preferably from 0.1 to 5% by weight, in particular from 1 to 3% by weight.

In addition to one or more sensory agents, the agent according to the invention in a preferred embodiment additionally contains one or more active substances with positive biological effects. Such compounds are disclosed in WO 2008/046778 A1, to which reference is hereby explicitly made. According to the invention, these compounds are preferably present in amounts of from 0.01 to 5% by weight, preferably 0.1 to 3% by weight.

Perfumes and perfumes

In a preferred embodiment, the agent according to the invention contains perfumes and / or fragrances. It is possible to use all perfumes and / or fragrances known to the person skilled in the art, with the proviso that they essentially do not adversely affect the properties of the cleaning agent.

microcapsules

It may be desirable to maintain the skin feel positive influencing agents or other sensitive agents, such as perfumes, spatially separated from the actual agent until use. An elegant method for incorporating such sensitive, chemically or physically incompatible or volatile ingredients is the use of microcapsules in which these ingredients are stored stable and transport stable and from which they are released to or during use mechanically, chemically, thermally or enzymatically , In a preferred embodiment, therefore, one or more of the skin feel positively affecting agents and / or perfumes and / or fragrances is wholly or partially incorporated into microcapsules.

Microcapsules are finely dispersed liquid or solid phases coated with film-forming polymers, in the course of which the polymers are produced after emulsification and coacervation or

Surface polymerization on the material to be enveloped (active ingredient) precipitate. In this case, the active ingredient is shell-shaped enveloped by a solid membrane (microcapsule in the strict sense) or enclosed by a matrix (microsphere or sphere). In the following, the term microcapsule is used in a summarized sense for both variants. Such capsules are usually microscopically small (<50 μιη) and are sometimes used as nanocapsules or Nanospheres are called, they can be dried like powder. However, larger capsules or pearls visible to the naked eye (> 0.5 mm) filled with active ingredients can also be produced. These provide, incorporated into the hand dishwashing agent according to the invention, an additional visual appeal when the capsules are suspended stable distributed on average, which can be realized by the selection of suitable surfactants and thickening agents and the setting of a suitable viscosity.

As microcapsules, it is possible to use all surfactant-stable capsules and capsule materials or spheres and spheroidal materials available on the market, such as, for example, Primasphere® (chitosan and agar or carboxymethylcellulose) and Primasponge® (alginate, chitosan, agar) from BASF, Hallcrest Microcapsules® (gelatin, gum arabic) from Hallcrest, Inc. (US), Coletica Thalaspheres® (marine collagen) Company Coletica (FR), Lipotec Millicapseln® (alginic acid, agar-agar) from Lipotec SA (ES), Induchem Unispheres® (lactose, microcrystalline cellulose, hydroxypropylmethylcellulose) and Unicerin® C30 (lactose, microcrystalline cellulose, hydroxypropylmethylcellulose) from Induchem AG (CH), Kobo Glycospheres (modified starch, fatty acid esters, phospholipids) and Softspheres® (modified Agar-agar) from Kobo (US) and Kuhs Probiol Nanospheres (phospholipids) from Kuhs (DE) and others. The microcapsules may have any shape in the production-related framework, but they are preferably egg-shaped or ellipsoidal or in particular approximately spherical. Depending on the active ingredient and application, the diameter along its greatest spatial extent may be between 100 nm (not visually recognizable as a capsule) and 10 mm. The preferred diameter is in the range between 0.1 mm and 7 mm, particularly preferred are microcapsules with a diameter between 0.4 mm and 5 mm. To improve the appearance can also dyes, pigments or

Pearlescent components are added.

The release of the active ingredient from the microcapsules can be done mechanically both by grinding the microcapsules during the cleaning process as well as by breaking up by means of a suitable metering device. Other options are the release of the active ingredient by changing the temperature (introduction into warm rinsing liquor), by shifting the pH, changing the electrolyte content, etc.

If microcapsules are used, their content is usually from 0.01 to 10% by weight, preferably from 0.1 to 5% by weight, in particular from 0.2 to 3% by weight and very preferably from 0.3 to 2% by weight -%, wherein the inventive agent exclusively similar

Microcapsules or else mixtures of different types of microcapsules may contain Polymers and builders

To further improve the drainage and / or drying behavior, the

Compositions according to the invention contain one or more additives from the group of polymers and builders (builders), usually in an amount of 0.001 to 5% by weight, preferably 0.01 to 4% by weight, in particular 0 to 1% by weight. , more preferably 0.2 to 2% by weight, most preferably 0.5 to 1.5% by weight, for example 1% by weight.

Builders suitable as additives are, in particular, polyaspartic acid sodium salt, ethylenediaminetriacetate cocoalkylacetamide (Rewopo D CHT 12), methylglycinediacetic acid tri-Na salt (Trilon® ES 9964) and acetophosphonic acid (Turpinal® SL).

viscosity

The preferred viscosity for the composition of the invention is 20 ° C and a shear rate of 30 min ^"1 - measured with a Brookfield LV DV II viscometer and spindle 31 - in the range of 10 to 5000 mPa s, preferably 50 to 2000 mPa s , in particular 500 to 1500 mPa s, particularly preferably 600 to 1000 mPa s The viscosity of the agent according to the invention can be increased by thickening agents and / or especially by a high surfactant content of the agent, in particular with a low surfactant content of the agent inorganic salts and can be reduced by solvents.

thickener

For thickening, the composition according to the invention may additionally comprise one or more polymers

Contain thickener.

For the purposes of the present invention, polymeric thickeners are the polycarboxylates which have a thickening effect as polyelectrolytes, preferably homo- and copolymerates of acrylic acid, in particular acrylic acid copolymers such as acrylic acid-methacrylic acid copolymers, and the polysaccharides, in particular heteropolysaccharides, and other customary thickening polymers. Suitable polysaccharides or heteropolysaccharides are the polysaccharide gums, for example gum arabic, agar, alginates, carrageenans and their salts, guar, guar gum, tragacanth, gellan, Ramzan, dextran or xanthan and their derivatives, eg. B. propoxylated guar, and their mixtures. Other polysaccharide thickeners, such as starches or cellulose derivatives, may alternatively or preferably be used in addition to a polysaccharide gum, for example 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. A preferred polymeric thickener 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 2-15 ^* 10 ⁶ and is available, for example, from Kelco under the trade name Keltrol®, eg as a cream-colored powder Keltrol® T (transparent) or as white granules Keltrol® RD (Readily Dispersable). Another preferred polymeric thickening agent is the microbial heteropolysaccharide gellan gum, which is formed under aerobic conditions, for example, from Auromonas elodea and especially from Sphingomonas paucimobilis strains. For example, Gellan Gum can be obtained under the trade name Kelcogel® in various qualities from Kelco

Acrylic acid polymers suitable as polymeric thickeners are, for example

high molecular weight with a polyalkenyl polyether, in particular an allyl ether of sucrose, pentaerythritol or propylene, crosslinked homopolymers of acrylic acid (INCI: Carbomer), which are also referred to as carboxyvinyl polymers. Such polyacrylic acids are i.a. from the Fa.

Lubrizol available under the trade name Carbopol®, eg Carbopol® 940 (molecular weight about 4,000,000 g / mol), Carbopol® 941 (molecular weight about 1,250,000 g / mol) or Carbopol® 934 (molecular weight about 3,000,000 g / mol).

However, particularly suitable polymeric thickeners are the following acrylic acid copolymers (i) copolymers of two or more monomers selected from the group consisting of acrylic acid, methacrylic acid and their simple esters, preferably those formed with C 1-4 -alkanols, for example the copolymers of methacrylic acid, butyl acrylate and methyl methacrylate (CAS 25035-69-2) or butyl acrylate and methyl methacrylate (CAS 25852-37-3) and which are available, for example, from Dow under the trade names Aculyn® and Acusol®, eg anionic non-associative ones Polymers Aculyn® 33 (crosslinked), Acusol® 810 and Acusol® 830 (CAS 25852-37-3), (ii) crosslinked high molecular weight acrylic acid copolymers, such as the copolymers of Cio-30- crosslinked with an allyl ether of sucrose or of pentaerythritol. Alkyl acrylates with one or more monomers from the group of acrylic acid, methacrylic acid and their simple, preferably with Ci-4-alkanols formed ester (INCI: Acrylates / Cio 30 alkyl acrylate crosspolymer) and which are available, for example, from the company. Lubrizol under the trade name Carbopol®, such as the hydrophobic Carbopol® ETD2623 and Carbopol® 1382 (INCI Acrylates / C-io-so-alkyl Acrylate Crosspolymer) and Carbopol® AQUA 30 (formerly Carbopol® EX 473).

The content of polymeric thickener is usually not more than 8% by weight, preferably between 0.1 and 7% by weight, more preferably between 0.5 and 6% by weight, in particular between 1 and 5% by weight and most preferably between 1, 5 and 4% by weight, for example between 2 and 2.5% by weight. In a preferred embodiment of the invention, however, the agent is free of polymeric thickeners.

Dicarboxylic acids (salts)

To stabilize the agent according to the invention, in particular at high surfactant content, one or more dicarboxylic acids and / or their salts may be added, in particular a composition of Na salts of adipic, succinic and glutaric acid, as described e.g. available under the trade name Sokalan® DSC. The use is advantageously carried out in amounts of 0.1 to 8% by weight, preferably 0.5 to 7% by weight, in particular 1, 3 to 6% by weight and particularly preferably 2 to 4% by weight.

A change in the dicarboxylic acid (salt) content can - especially in amounts above 2% by weight - contribute to a clear solution of the ingredients. Also, within certain limits, influencing the viscosity of the mixture by this means is possible. Furthermore, this component influences the solubility of the mixture. This component is particularly preferably used at high surfactant contents, in particular at surfactant contents above 30% by weight. However, if it is possible to dispense with their use, the agent according to the invention is preferably free from dicarboxylic acid (salts).

Other additives

In addition, one or more further customary additives, in particular in hand dishwashing detergents and hard surface cleaners, in particular UV stabilizers, perfume, pearlescing agents (INCI: Opacifying Agents, for example glycol distearate, for example Cutina® AGS from BASF, or this containing mixtures, for example Euperlane® from BASF), dyes, corrosion inhibitors, preservatives (for example the technical 2-bromo-2-nitropropane-1,3-diol (CAS 52-51-7), which is also referred to as bronopol, for example as Myacide® BT is commercially available from the company BASF, organic salts, disinfectants, enzymes and pH-adjusting agents, in amounts of usually not more than 5 wt .-% be contained pH

The pH of the composition according to the invention can be determined by means of customary pH regulators, for example acids such as mineral acids or citric acid and / or alkalis such as sodium or potassium

Potassium hydroxide, wherein the pH of the liquid aqueous cleaning agent is preferably 8 to 13, preferably 8.5 to 12, more preferably 9 to 11.5. For adjusting and / or stabilizing the pH, the composition according to the invention may comprise one or more buffer substances, usually in amounts of 0.001 to 5% by weight, preferably 0.005 to 3% by weight, in particular 0.01 to 2% by weight. , particularly preferably 0.05 to 1% by weight, more preferably 0, 1 to 0.5% by weight, for example 0.2% by weight. Preference is given to buffer substances which are at the same time complexing agents or even chelating agents. Particularly preferred buffer substances are the citric acid or citrates, in particular the sodium and potassium, for example, trisodium citrate 2 ^* H20 and tripotassium citrate H2O.

manufacturing

The composition according to the invention can be prepared by stirring the individual components together in any order. The order of attachment is not critical to the preparation of the agent. Preferably, in this case water, surfactants, active ingredients and optionally further of the aforementioned ingredients are stirred together. If perfume and / or dye are used, then their addition to the resulting solution. Subsequently, the pH is adjusted as described above.

use

The composition according to the invention can be used for cleaning hard surfaces. For use, the agent according to the invention can be metered from a commercially available bottle. In addition, the composition according to the invention can also be applied in the form of a foam either directly on the surface to be cleaned or on a sponge, a cloth, a brush or another, optionally moistened, cleaning aid. For foam generation is particularly suitable a manually activated foam dispenser, in particular selected from the group comprising aerosol spray dispenser, even pressure-building spray dispenser, pump spray dispenser and trigger spray dispensers, in particular pump foam dispenser, as for example from the company Airspray, the company Taplast, the company Keltec or the Daiwa Can Company. In addition to trigger bottles, pump spray dispensers and trigger spray dispensers with a polyethylene, polypropylene or polypropylene container are also suitable

Polyethylene terephthalate. Such trigger bottles are offered for example by the company Afa-Polytec. The spray head is preferably equipped with a foam nozzle. In addition, the agent can also be converted into a corresponding propellant (for example n-butane, a propane / butane mixture, carbon dioxide, nitrogen or a CO 2 / N 2 mixture)

Aerosol spray bottle to be filled However, such a spray dispenser is less preferred. If the agent is to be dosed as a foam, it is necessary in any case to set a suitable viscosity so that the agent can be conveyed through the spray dispenser. EXAMPLES

example 1

The storage stability of various compositions according to the invention and

Comparative compositions were determined according to DIN EN 13697: 2015-06. It was measured once after 24 months of storage and once more after 24 months of storage and 72 hours after application. The compositions are in the following table

reproduced, wherein the amounts are in wt .-%, based on the active ingredient. The results for storage stability are also shown in the table.

BAC = benzalkonium chloride; DDAC = di-n-decyldimethylammonium chloride; N-0 = amine oxide; FA C10-16 7 EO = C10-16 fatty alcohol ethers with 7 ethoxyl units

E1 to E5 are compositions according to the invention, V1 to V3 are comparative examples.

All the examples of the present invention showed excellent storage stability, whereas compositions without the combination of a quaternary ammonium compound, at least one amine oxide, and an alcohol had no or only low storage stability and thus no or low activity of the quaternary ammonium compound. In particular, by This special combination of active ingredients will increase the effectiveness against Gram-negative bacteria and against yeasts and molds.

Claims

1. Liquid aqueous cleaning agent comprising:

a) at least one cationic surfactant comprising at least one quaternary

Ammonium compound;

b) at least one nonionic surfactant comprising at least one amine oxide;

c) at least one alcohol;

d) optionally additives; and

e) water, which is added to 100 wt .-%, wherein the sum of a) to e) gives 100% by weight.

2. Liquid aqueous cleaning agent according to claim 1, wherein the quaternary

Ammonium compound is selected from benzalkonium chloride, benzalkone B,

Benzoxonium chloride, cetrimonium bromide, benzetonium chloride,

Dialkyldimethylammonium chloride such as di-n-decyldimethylammonium chloride,

Didecyldimethylammoniumbromid, Dioctyldimethylammoniumchlorid, and their

Mixtures, preferred are the Benzalkoniumchloride with Cs -is-alkyl radicals, in particular Ci2-i4-Alkylbenzyldimethylammoniumchlorid, and di-n-decyldimethylammoniumchlorid.

A liquid aqueous cleaning composition according to claim 2, wherein the amine oxide is selected from alkylamine oxides, especially alkyldimethylamine oxides, alkylamidoamine oxides and alkoxyalkylamine oxides or mixtures thereof, more preferably Ce-22-alkyldimethylamineoxides or C6-22-dihydroxyalkylaminoxides or mixtures thereof.

4. Aqueous liquid cleaning agent according to claim 2 or 3, wherein the alcohol

is selected from Ci-12-alcohols, preferably methanol, ethanol, n-propanol or isopropanol, especially ethanol.

The liquid aqueous cleaning composition according to any one of claims 1 to 4, wherein said at least one cationic surfactant and said at least one nonionic surfactant are present in a weight ratio of 1: 2 to 2: 1.

6. Liquid aqueous cleaning agent according to one of claims 1 to 4, wherein the

at least one additive d) is selected from perfumes, fragrances, solvents other than alcohol, water-soluble salts, acids, pearlescers, enzymes, corrosion inhibitors, pH adjusters or mixtures thereof.

7. A liquid aqueous cleaning composition according to any one of claims 1 to 6, wherein

0.005 to 5% by weight, preferably 0.01 to 3% by weight, more preferably 0.3 to 1.5% by weight of a); 0.1 to 10% by weight, preferably 0.2 to 5% by weight, more preferably 0.3 to 3.5% by weight of b); 0.01 to 10 wt%, preferably 0.1 to 7.5 wt%, more preferably 0.5 to 1.5 wt% c); 0 to 15% by weight, preferably 0.5 to 10% by weight, more preferably 2.5 to 5% by weight of d); and

e) water is added to 100% by weight,

wherein the wt .-% based on the total weight of the liquid aqueous cleaning agent.

8. Liquid aqueous cleaning agent according to any one of claims 1 to 7, wherein the pH of the liquid aqueous cleaning agent 8 to 13, preferably 8.5 to 12, more preferably 9 to 1 1, 5.

9. A process for the preparation of a liquid aqueous cleaning agent according to any one of claims 1 to 8, comprising the steps:

i) mixing the components a), b), c), e) and optionally d); and

10. Using a mixture of

at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol; for stabilizing liquid aqueous cleaners, preferably having a pH of from 8 to 13, more preferably for at least 12 months, most preferably for at least 24 months, which contain at least one quaternary ammonium compound.

1 1. Using a mixture of

at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol; for increasing the microbicidal activity against Gram-negative bacteria, in particular Pseudomonas and their relatives of liquid aqueous cleaning agents, preferably having a pH of 8 to 13, which contain at least one quaternary ammonium compound.

12. Use of a mixture of

at least one nonionic surfactant comprising at least one amine oxide; and at least one alcohol; for increasing the microbicidal activity against yeasts and molds of liquid aqueous cleaning agents, preferably having a pH of 8 to 13, which contain at least one quaternary ammonium compound.