WO2010031689A1

WO2010031689A1 - All-purpose cleaner with improved cleaning performance in diluted application

Info

Publication number: WO2010031689A1
Application number: PCT/EP2009/061290
Authority: WO
Inventors: Erik BRÜCKNER; Ryszard Katowicz; Stefan Karsten
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2008-09-17
Filing date: 2009-09-01
Publication date: 2010-03-25
Also published as: HUE032637T2; DE102008047742A1; ES2617319T3; PL2329003T3; EP2329003B1; EP2329003A1

Abstract

An aqueous cleaning agent for hard surfaces which contains at least one fatty acid or a salt thereof and at least one alkylamido alkylamine can be used after dilution for cleaning hard surfaces. The agent can accordingly be used in a method for cleaning hard surfaces which comprises the steps of preparing a cleaning liquor by diluting the cleaning agent with water, applying the diluted cleaning agent to the surface to be cleaned, wiping with a cloth, a sponge, a leather or some other substrate suitable for this purpose in order to distribute the agent over the entire surface and leaving it to dry.

Description

All-purpose cleaner with improved cleaning performance in diluted applications

This application relates to an aqueous hard surface cleaner containing at least one fatty acid or salt thereof and at least one alkylamidoalkylamine. This is particularly suitable for dilute application and can be used in a process for cleaning hard surfaces.

All-purpose cleaners intended for dilute use have traditionally contained linear alkyl benzene sulfonate surfactants (LAS). These have excellent cleaning performance, but are poorly degradable anaerobically. By contrast, the LAS-free surfactant combinations, which are desirable for ecological reasons, have so far led to comparatively poor cleaning results. Therefore, it has been desired to formulate a LAS-free detergent which has better biodegradability while exhibiting good cleaning performance.

It has now been found that a cleaning agent with a combination of a fatty acid or a fatty acid salt and an alkylamidoalkylamine over previously known LAS-free cleaning agents has a significantly improved cleaning performance, especially against greasy or oily soil. Such an agent is also significantly better biodegradable compared with other previously known detergents.

Accordingly, the subject matter of the present application is an aqueous cleaning agent for hard surfaces which contains at least one fatty acid or a salt thereof and at least one alkylamidoalkylamine.

The composition according to the invention is suitable for diluted application and can be used for cleaning hard surfaces. A further subject of this application is therefore the use of a cleaning agent according to the invention for cleaning hard surfaces after dilution.

The agent according to the invention can be used in a process for cleaning hard surfaces. In this case, a method is suitable in which firstly the cleaning agent according to the invention is diluted with water to a cleaning liquor, then the diluted cleaning agent applied to the surface to be cleaned and then by means of a cloth, a sponge, a leather or other suitable means by wiping on the Surface is spread to finally dry.

Yet another subject of this application is therefore a process for cleaning hard surfaces, comprising the steps of a) preparing a cleaning liquor by diluting a cleaning agent according to the invention with water, b) applying the diluted cleaning agent to the surface to be cleaned, c) wiping with a cloth, sponge, leather or other suitable substrate for this purpose to rub the agent over the entire surface, d) allow to dry.

In the context of the present invention are fatty acids or fatty alcohols or their derivatives - unless otherwise stated - representative of branched or unbranched carboxylic acids or alcohols or their derivatives having preferably 6 to 22 carbon atoms. The former are particularly preferred for their vegetable base as based on renewable raw materials for environmental reasons, but without limiting the teaching of the invention to them. In particular, the oxo alcohols or their derivatives, which are obtainable, for example, by the RoELEN's oxo synthesis, can also be used correspondingly.

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 referred to below, where appropriate, according to 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 INCI names can be found in the International Cosmetic Ingredient Dictionary and Handbook - Seventh Edition (1997), The Cosmetic, Toiletry and Fragrance Association (CTFA), 1101 17th Street, NW, Suite 300, Washington, DC 20036, USA , which publishes more than 9,000 INCI names and references to more than 37,000 trade names and technical names, including related distributors from over 31 countries. The International Cosmetic Ingredient Dictionary and Handbook assigns to the ingredients one or more chemical classes, such as polymer ethers, and one or more functions, such as surfactants-cleansing agents, which are further explained and discussed below possibly also referred to.

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

Fatty acids and fatty acid salts

The agent according to the invention contains at least one fatty acid or a salt thereof. For the purposes of this application, fatty acids are branched or preferably unbranched, saturated or unsaturated carboxylic acids having preferably 6 to 22, in particular 10 to 22, carbon atoms. Particularly preferred fatty acids are unbranched, saturated or unsaturated fatty acids with an even number of carbon atoms, preferably Ci ₂ to Ci ₈ , since these are obtained from vegetable oils and thus from renewable raw materials.

In addition to the fatty acids themselves, soaps can be used. Soaps are the water-soluble ammonium, alkaline earth and alkali metal salts (preferably sodium salts or potassium salts) of the saturated and unsaturated higher fatty acids (preferably C10 to C22), preferably present as solid or semi-solid mixtures. Typical examples are the sodium, potassium, magnesium, ammonium and triethanolammonium salts of caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, Linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid and their technical mixtures. Preferably, coconut or palm kernel fatty acids are used in the form of their sodium or potassium salts.

The composition according to the invention preferably contains the at least one fatty acid or the at least one fatty acid salt in an amount of from 0.1 to 5% by weight, particularly preferably 0.5 to 3% by weight, in particular 0.8 to 2% by weight. ,

alkylamidoalkylamines

The agent according to the invention also contains one or more alkylamidoalkylamines. The alkylamidoalkylamines (INCI alkylamido alkylamines) are amphoteric surfactants and obey formula (I),

R ¹ -CO-NR ² - (CH ₂ ) ₁ -N (R ³ ) - (CH ₂ CH ₂ O) - (CH ₂ ) _k - [CH (OH)] ₁ -CH ₂ -Z-OM (I. )

in which R ¹ is a saturated or unsaturated C _{_6-22} -alkyl radical, preferably C ₈ -i ₈ -alkyl radical, in particular a saturated Ci -i _O ₆ alkyl radical, for example a saturated C ₂ _i ₄ alkyl radical, R ² is a hydrogen atom H or a CI_ ₄ alkyl radical, preferably H, i is a number from 1 to 10, preferably 2 to 5, in particular 2 or 3,

R ^{3 is} a hydrogen atom H or CH ₂ COOM (to M su), 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, SO _2, OPO (OR ^4), or P (O) (OR ⁴⁾ wherein R ⁴ is a CI_ ₄ alkyl or M (see below), and

M is a hydrogen, an alkali metal, an alkaline earth metal or a protonated alkanolamine, for example protonated mono-, di- or triethanolamine. Preferred representatives satisfy the formulas Ia to Id,

R ¹ -CO-NH- (CH ₂ ) ₂ -N (R ³ ) -CH ₂ CH ₂ O-CH ₂ -COOM (Ia)

R ¹ -CO-NH- (CH ₂ ) ₂ -N (R ³ ) -CH ₂ CH ₂ O-CH ₂ CH ₂ -COOM (Ib)

R ¹ -CO-NH- (CH ₂ ) ₂ -N (R ³ ) -CH ₂ CH ₂ O-CH ₂ CH (OH) CH ₂ -SO ₃ M (Ic)

R ¹ -CO-NH- (CH ₂ ) ₂ -N (R ³ ) -CH ₂ CH ₂ O-CH ₂ CH (OH) CH ₂ -OPO ₃ HM (Id)

in which R ¹ , R ³ and M have the same meaning as in formula (III).

Exemplary alkylamido alkylamines are the following compounds named according to INCI: coco amphodipropionic Acid, Cocobetainamido amphopropionates, DEA-Cocoamphodipropionate, Disodium Caproamphodiacetate, Disodium Caproamphodipropionate, Disodium Capryloamphodiacetate, Disodium Capryloamphodipropionate, Disodium Cocoamphocarboxyethylhydroxypropylsulfonate, Disodium Cocoamphodiacetate, Disodium Cocoamphodipropionate, Disodium Isostearoamphodi- acetate, Disodium Isostearoamphodipropionate , Disodium Laureth-5 Carboxyamphodiacetate, Disodium Lauroamphodiacetate, Disodium Lauroamphodipropionate, Disodium propionate Oleoamphodi-, Disodium PPG-2-lsodeceth-7 Carboxyamphodiacetate, Disodium Stearoamphodiacetate, Disodium Tallowamphodiacetate, Disodium Wheatgermamphodiacetate, Lauroamphodipropionic Acid, Quaternium-85, Sodium Caproamphoacetate, Sodium Caproamphohydroxypropylsulfonate, Sodium Caproamphopropionate, Sodium Capryloamphoacetate, Sodium Capryloamphohydroxypropylsulfonate, Sodiu m Capryloamphopropionate, Sodium Cocoamphoacetate, Sodium Cocoampho- hydroxypropylsulfonate, Sodium Cocoamphopropionate, Sodium Cornamphopropionate, Sodium iso stearoamphoacetate, sodium Isostearoamphopropionate, Sodium lauroamphoacetate, sodium Lauro- amphohydroxypropylsulfonate, Sodium Lauroampho PG-Acetate Phosphate, Sodium Lauroampho- propionate, Sodium Myristoamphoacetate, Sodium Oleoamphoacetate , Sodium Oleoamphohydroxy- propylsulfonate, Sodium Oleoamphopropionate, Sodium Ricinoleoamphoacetate, Sodium Stearo- amphoacetates, Sodium Stearoamphohydroxypropylsulfonate, Sodium Stearoamphopropionate, Sodium Tallamphopropionate, Sodium Tallowamphoacetate, Sodium Undecylenoamphoacetate, Sodium Undecylenoamphopropionate, Sodium Wheat Germamphoacetate and Trisodium Lauroampho PG-Acetate Chloride phosphate. The alkylamidoalkylamine is preferably selected from the group consisting of disodium cocoamphodiacetate, disodium lauroamphodiacetate, sodium stearo amphoacetate, sodium cocoamphoacetate, disodium cocoamphodipropionate, disodium stearoamphodiacetate and mixtures thereof and particularly preferably disodium cocoamphodiacetate (sodium cocoamphodiacetate).

The agent according to the invention preferably contains alkylamidoalkylamines in amounts of from 0.1 to 10% by weight, preferably from 0.2 to 5% by weight. Nonionic surfactants

In a preferred embodiment, the agent according to the invention also contains at least one nonionic surfactant. Long-chain alkyl polyglycosides containing 8 to 14 C atoms in the alkyl moiety and 1 to 3 glycoside units, Cs-C-is-alcohol polyglycol ethers, ie ethoxylated and / or propoxylated alcohols, are especially nonionic surfactants with 8 to 18 carbon atoms in the alkyl moiety and 2 to 15 ethylene oxide (EO) and / or propylene oxide units (PO), C ₈ -C ₈ - carboxylic acid polyglycol esters having 2 to 15 EO, for example tallow fatty acid + 6-EO esters and ethoxylated fatty acid amides with 12 to 18 carbon atoms in the fatty acid part and 2 to 8 EO mention. Examples of such surfactants are oleyl-cetyl-alcohol with 5 EO, nonylphenol with 10 EO, lauric acid diethanolamide, Kokosalkyldimethylaminoxid and Kokosalkylpolyglucosid with an average of 1, 4 glucose units. Particularly preferred are C ₈ . _10- Alkylpolyglucoside with 1 to 2 glycoside units, C ₁₂ -i ₈ amine oxides and C ₈ . ₁₈ fatty alcohol polyglycol used in particular 2 to 8 EO.

The composition according to the invention preferably contains one or more nonionic surfactants in an amount of up to 10% by weight, particularly preferably 0.01 to 5% by weight.

Other ingredients

In addition to those mentioned, the composition according to the invention may contain further ingredients usually used in cleaning agents. Preferably, these are selected from the group comprising other surfactants, solvents, bases, acids, viscosity modifiers, polymers, antibacterial agents, preservatives, solubilizers, complexing agents, enzymes, dyes, fragrances and mixtures.

surfactants

The agent according to the invention may contain, in addition to the ingredients mentioned, further surface-active substances. Suitable surface-active substances for the agents according to the invention are surfactants from the classes of anionic, cationic and amphoteric surfactants.

Suitable anionic surfactants are preferably C ₈ -C ₂ o-alkanesulfonates, C ₈ -C ₁₈ -Monoalkylsulfate, Cs-C-is-alkyl polyglycol ether sulfates steinsäuremono- and di-C are suitable with 2 to 6 ethylene oxide (EO) in the ether moiety and sulfosuccinic ₈ -C ₁₈ alkyl esters. Furthermore, C ₈ -C ₁₈ -α-olefinsulfonates, sulfonated C ₈ -C ₁₈ -fatty acids, C ₈ -C ₂₂ -carboxylic acid amide ether sulfates, C ₈ -C ₁₈ -alkyl polyglycol ether-carboxylates, C ₈ -C ₁₈ -N-acyl taurides, C ₈ -C ₁₈ -N sarcosinates and C ₈ -C ₁₈ -alkyl isethionates or mixtures thereof.

The anionic surfactants are preferably used as sodium salts, but can also be used as other alkali metal or alkaline earth metal salts, for example magnesium salts, and in the form of Ammonium or mono-, di-, tri- or Tetraalkylammoniunnsalzen be contained, in the case of sulfonates also in the form of their corresponding acid. Examples of such surfactants are sodium cocoalkyl sulfate, sodium sec-alkanesulfonate having about 15 carbon atoms and sodium dioctylsulfosuccinate. In a particularly preferred embodiment, however, the agent according to the invention is free of linear alkylbenzenesulfonate surfactants (LAS), which have hitherto been used frequently in cleaning agents as anionic surfactants.

Suitable amphoteric surfactants are, for example, betaines of the formula (R ") (R '") (R ^v ) N ⁺ CH ₂ COO ^- in which R "is an alkyl radical having 8 to 25, preferably 10 to 21, carbon atoms and optionally interrupted by hetero atoms or heteroatom groups R '"and Ri ^{v are} identical or different alkyl radicals having 1 to 3 carbon atoms, in particular do-C-is-alkyl-dimethylcarboxymethyl betain and Cn-C ^ -Alkylamidopropyl-dimethylcarboxymethylbetain.

Suitable cationic surfactants include the quaternary ammonium compounds of the formula (R ^V ) (R ^VI ) (R ^V ") (R ^VI ") N ⁺ X ^" , in which R ^v to R ™ for four identical or different, in particular two long, and two short-chain, alkyl radicals and X ^'are an anion, in particular a halide ion, for example, didecyl-dimethyl-ammonium chloride, alkyl-benzyl-didecyl-ammonium chloride and mixtures thereof.

The amount of anionic surfactant in the composition according to the invention is usually not more than 10% by weight, preferably between 0.5 and 7% by weight, in particular between 1 and 6% by weight. If the compositions contain cationic and / or amphoteric surfactants, their concentration in the composition according to the invention is usually not more than 3% by weight, preferably in each case between 0.001 and 2% by weight. It has furthermore proven particularly advantageous if the total surfactant content in the composition according to the invention is not more than 8% by weight.

solvent

As a further component, the cleaning agent according to the invention may contain one or more water-soluble organic solvents. Suitable solvents are for example, saturated or unsaturated, preferably saturated, branched or unbranched CI_ ₂ o-hydrocarbons, preferably C ₂ -i ₅ hydrocarbons, with at least one hydroxy group and optionally one or more ether functions COC, ie the carbon atom chain interrupting oxygen atoms. Preferred solvents are C ₂ -C ₆ -alkylene glycols, optionally ethoxylated on one side with a C ₁ -C ₆ -alkanol, and poly-C ₂ -C ₃ -alkylene glycol ethers having on average 1 to 9 identical or different, preferably identical, alkylene glycol groups per molecule as well as Ci_ ₆ - alcohols, preferably ethanol, n-propanol or iso-propanol, especially ethanol. Exemplary solvents are the following INCI compounds: Alcohol (ethanol), buteth-3, butoxy diglycol, butoxyethanol, butoxyisopropanol, butoxypropanol, n-butyl alcohol, t-butyl alcohol, butylene glycol, butyloctanol, diethylene glycol, dimethoxy diglycol, dimethyl ether, Dipropylene glycol, ethoxydiglycol, ethoxyethanol, ethyl hexanediol, glycol, hexanediol, 1, 2,6-hexanetriol, hexyl alcohol, hexylene glycol, isobutoxypropanol, isopentyldiol, isopropyl alcohol (isopropanol), 3-methoxybutanol, methoxy diglycol, methoxyethanol, methoxyisopropanol, Methoxy methyl butanol, methoxy PEG-10, methylal, methyl alcohol, methyl hexyl ether, methyl propane diol, neopentyl glycol, PEG-4, PEG-6, PEG-7, PEG-8, PEG-9, PEG-6 methyl ether, pentylenes Glycol, PPG-7, PPG-2-buteth-3, PPG-2 butyl ether, PPG-3 butyl ether, PPG-2 methyl ether, PPG-3 methyl ether, PPG-2 propyl ether, propanediol, propyl alcohol (n Propanol), propylene glycol, propylene glycol butyl ether, propylene glycol colpropyl ether, tetrahydrofurfuryl alcohol, trimethylhexanol.

The solvent is preferably selected from the group consisting of methanol, ethanol, propanol, isopropanol, ethylene glycol, butyl glycol, propylene glycol, ethylene glycol propyl ether, propylene glycol butyl ether, propylene glycol propyl ether and mixtures thereof. Most preferably, the solvents are ethanol, isopropanol, propylene glycol butyl ether and / or butyl glycol.

The composition of the invention contains water-soluble organic solvents, preferably in amounts of up to 20 wt .-%, particularly preferably 0.5 to 15 wt .-%, in particular 1 to 10 wt .-%.

complexing

INCI chelating agents, also called sequestrants, are ingredients that are capable of complexing and inactivating metal ions to prevent their detrimental effects on the stability or appearance of the agents, such as clouding. On the one hand, it is important to complex the incompatible with numerous ingredients calcium and magnesium ions of water hardness. On the other hand, the complexation of the ions of heavy metals such as iron or copper delays the oxidative decomposition of the finished agents. In addition, the complexing agents support the cleaning effect. In a preferred embodiment, the agent according to the invention therefore contains one or more complexing agents.

Suitable, for example, are the following complexing agents, if possible according to INCI: Aminotrimethylene phosphonic acid, Beta-Alanine Diacetic Acid, Calcium Disodium EDTA, Citric Acid, Cyclodextrin, Cyclohexanediamine Tetraacetic Acid, Diammonium Citrate, Diammonium EDTA, Diethylenetriamine Pentamethylene Phosphonic Acid, Dipotassium EDTA , Disodium Azacycloheptane Diphosphonate, Disodium EDTA, Disodium Pyrophosphate, EDTA, Etidronic Acid (HEDP, Hydroxyethylidene diphosphonic Acid), Galactic Acid, Gluconic Acid, Glucuronic Acid, HEDTA, Hydroxypropyl Cyclodextrin, Methyl Cyclodextrin, Pentapotassium Triphosphate, Methyl Glycine Diacetic acid (MGDA), Pentasodium Aminotrimethylene Phosphonates, Pentasodium Ethylenediamine Tetramethylene Phosphonates, Pentasodium Pentetate, Pentasodium Triphosphates, Pentetic Acid, Phytic Acid, Polyamines, Potassium Citrate, Potassium EDTMP, Potassium Gluconate, Potassium Polyphosphates, Potassium Trisphosphonomethylamine Oxides, Ribonic Acid, Sodium Chitosan Methylene Phosphonate, Sodium Citrate, Sodium Diethylenetriamine Pentamethylene Phosphonate, Sodium Dihydroxyethylglycinate, Sodium EDTMP, Sodium Gluceptate, Sodium Gluconate, Sodium Glycereth-1 Polyphosphate, Sodium Hexametaphosphate, Sodium Metaphosphate, Sodium Metasilicate, Sodium Phytate, Sodium Polydimethylglycinophenolsulfonate, Sodium Trimetaphosphate, TEA -EDTA, TEA polyphosphates, tetrahydroxyethyl ethylenediamines, tetrahydroxypropyl ethylenediamines, tetrapotassium etidronates, tetrapotassium pyrophosphates, tetrasodium EDTA, tetrasodium etidronates, tetrasodium pyrophosphates, tripotassium EDTA, trisodium dicarboxymethy Alaninate, Trisodium EDTA, Trisodium HEDTA, Trisodium MGDA, Trisodium NTA and Trisodium Phosphate. Suitable chelating agents are commercially available under the trade name Trilon ^®, for example, by the company BASF. The agent according to the invention preferably contains one or more complexing agents selected from the group comprising methylglycinediacetic acid, nitrilotriacetic acid, hydroxyethylidenediphosphonic acid, ethylenediaminetetraacetic acid, polyamines, anionically modified polyamines and mixtures thereof, where the acids are also to be understood as meaning the corresponding sodium salts. Complexing agents are preferably used in amounts of 0.01 to 5 wt .-%.

Hydrophilizing agents

The composition according to the invention may also contain agents for the hydrophilization of surfaces. In particular, colloidal silica sols in which the silicon dioxide is present nanoparticulate are suitable for hydrophilization. Colloidal nanoparticulate silica sols for the purposes of this invention are stable dispersions of amorphous particulate silicon dioxide SiO ₂ having particle sizes in the range from 1 to 100 nm. The particle sizes are preferably in the range from 3 to 50 nm, more preferably from 4 to 40 nm a silica sol, which is suitable to be used for the purposes of this invention is that available under the trade name Bindzil ^® 30/360 from Akzo silica sol having a particle size of 9 nm. Further suitable silica sols are Bindzil ^® 15/500, 30/220, 40/200 (Akzo), Nyacol ^® 215, 830, 1430, 2034DI and Nyacol ^® DP5820, DP5480, DP5540 etc. (Nyacol Products), Levasil ^® 100/30, 100F / 30, 100S / 30, 200/30, 200F / 30, 300F / 30, VP 4038, VP 4055 (HC Starck / Bayer) or CAB-O-SPERSE ^® PG 001, PG 002 (aqueous dispersion of CAB-O-SIL ^®, Cabot), Quartron PL-1, PL-3 (Fuso Chemical Co.), Köstrosol 0830, 1030, 1430 (Chemiewerk Bad Köstritz). The silica sols used may also be surface-modified silica treated with sodium aluminate (alumina-modified silica). In addition, it is also possible to use certain polymers for the hydrophilization of surfaces. Particularly suitable hydrophilizing polymers are amphoteric polymers, for example copolymers of acrylic or methacrylic acid and MAPTAC, DADMAC or another polymerisable quaternary ammonium compound. Furthermore, it is also possible to use copolymers with AMPS (2-acrylamido-2-methylpropanesulfonic acid). Polyethersiloxanes, ie copolymers of polymethylsiloxanes with ethylene oxide or propylene oxide segments, are further suitable polymers. Also usable are acrylic polymers, maleic acid copolymers and polyurethanes with PEG (polyethylene glycol) units.

Suitable polymers are, for example, under the trade names Mirapol Surf-S 100, 110, 200, 210, 400, 410, A 300, A 400 (Rhodia), Tegopren 5843 (Goldschmidt), Sokalan CP 9 (BASF) or Polyquart Ampho 149 (Cognis ) commercially available.

Volatile alkali; bases

Furthermore, the agents according to the invention may contain volatile alkali. As such

Ammonia and / or alkanolamines, which may contain up to 9 C-atoms in the molecule used. When

Alkanolamines are the ethanolamines preferred and of these in turn the monoethanolamine.

The content of ammonia and / or alkanolamine is preferably 0.01 to 2 wt .-%; ammonia is particularly preferably used.

In addition, the cleaning agents according to the invention may also contain small amounts of bases.

Preferred bases are selected from the group of alkali and alkaline earth metal hydroxides and carbonates, in particular the alkali metal hydroxides, of which potassium hydroxide and especially sodium hydroxide is particularly preferred.

acids

Alkaline agents may additionally contain carboxylic acid in addition to the volatile alkali, wherein the equivalent ratio of amine and / or ammonia to carboxylic acid is preferably between 1: 0.9 and 1: 0.1. Suitable are carboxylic acids having up to 6 carbon atoms, which may be mono-, di- or polycarboxylic acids. Depending on the equivalent weight of amine and carboxylic acid, the content of carboxylic acid is preferably between 0.01 and 2.7% by weight, in particular between 0.01 and 0.9% by weight. Examples of suitable carboxylic acids are acetic acid, glycolic acid, lactic acid, citric acid, succinic acid, adipic acid, malic acid, tartaric acid and gluconic acid, of which preferably acetic acid, citric acid and lactic acid are used. Citric acid is particularly preferably used. Viscosity regulators

The agent according to the invention may further contain viscosity regulators. Suitable viscosity regulators are, for example, organic natural thickeners (agar-agar, carrageenan, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, locust bean gum, starch, dextrins, gelatin, casein), organic modified natural substances (carboxymethylcellulose and other cellulose ethers, hydroxyethyl - and -propylcellulose and the like, core flour ethers), organic fully synthetic thickeners (polyacrylic and polymethacrylic compounds, vinyl polymers, polycarboxylic acids, polyethers, polyimines, polyamides) and inorganic thickeners (polysilicic acids, clay minerals such as montmorillonites, zeolites, silicas).

Examples of polyacrylic and polymethacrylic compounds include the high molecular weight homopolymers of acrylic acid crosslinked with a polyalkenyl polyether, in particular an allyl ether of sucrose, pentaerythritol or propylene (INCI name according to the International Dictionary of Cosmetic Ingredients of The Cosmetic, Toiletry, and Fragrance Association (US Pat. CTFA): carbomers), also referred to as carboxyvinyl polymers. Such polyacrylic acids are obtainable inter alia from Fa. 3V Sigma under the tradename Polygel ^® such as Polygel ^® DA, and by the company. BFGoodrich under the tradename Carbopol ^®, such as Carbopol ^® 940 (molecular weight about 4,000,000), Carbopol ^® 941 (molecular weight approximately 1,250,000) or Carbopol ^® 934 (molecular weight approximately 3,000,000). Furthermore, the following acrylic acid copolymers are included: (i) Copolymers of two or more monomers from the group of acrylic acid, methacrylic acid and their simple, preferably with C-ι- ₄ alkanols formed esters (INCI acrylates copolymer), to which about Copolymers of methacrylic acid, butyl acrylate and methyl methacrylate (CAS designation according to Chemical Abstracts Service: 25035-69-2) or of butyl acrylate and methyl methacrylate (CAS 25852-37-3) and the example of the Fa. Rohm & Haas under the trade name Aculyn polymer are available ^® and Acusol ^®, and from Degussa (Goldschmidt) under the trade name Tego ^®, for example the anionic non-associative polymers Aculyn ^® 22, Aculyn ^® 28, Aculyn ^® 33 (crosslinked), Acusol ^® 810, Acusol ^® 823 and Acusol ^® 830 (CAS 25852-37-3); (ii) crosslinked high molecular weight acrylic acid copolymers, such as those crosslinked with an allyl ether of sucrose or pentaerythritol copolymers of C ₁₀ - ₃₀ alkyl acrylates with one or more monomers selected from the group of acrylic acid, methacrylic acid and their simple, preferably with C |. ₄ -alkanols formed, esters (INCI Acrylates / C 10-30 Alkyl Acrylate Crosspolymer) and which are for example available from the company. BFGoodrich under the tradename Carbopol ^®, for example hydrophobized Carbopol ^® ETD 2623 and Carbopol ^® 1382 (INCI Acrylates / C 10-30 alkyl acrylate Crosspolymer) and Carbopol AQUA ^® 30 (formerly Carbopol ^® EX 473).

Further thickeners are the polysaccharides and heteropolysaccharides, in particular 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 propoxylated guar, as well as 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, hydroxypropyl methyl or hydroxyethyl methyl cellulose or cellulose acetate. A particularly preferred polysaccharide 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 2-15x10 ⁶ and for example, by Fa. Kelco under the trade names Keltrol ^® and Kelzan ^® or available from Rhodia under the trade name Rhodopol ^®.

As thickeners, it is also possible to use phyllosilicates. These include, for example, available under the trade name Laponite ^® magnesium or sodium-magnesium phyllosilicates from Solvay Alkali, in particular the Laponite ^® RD or Laponite ^® RDS, and the magnesium silicates Süd-Chemie, especially the Optigel ^® SH. When selecting the suitable viscosity regulator, care must be taken to ensure that the transparent impression of the cleaning agent is retained, ie the use of the thickener should not lead to clouding of the agent. The amount of viscosity regulator is usually up to 0.5 wt .-%, preferably 0.001 to 0.3 wt .-%, in particular 0.01 to 0.2 wt .-%, most preferably 0.01 to 0.15 wt .-%. In a particularly preferred embodiment, however, the agent according to the invention is free from viscosity regulators, since these may also contribute to the undesirable streaking.

In addition, the agent according to the invention may contain further of the auxiliaries and additives mentioned. The pH of the compositions of the invention can be varied over a wide range, but is preferably a range of 2.5 to 12. For the disinfectant is a neutral or slightly acidic pH, preferably 6 to 7.5, in particular 6 , 5 to 7, preferred. Desinfecting hard surface cleaners preferably have a pH of 7.5 to 10, preferably 8 to 9.5, and skin disinfectants are preferably of a weakly acidic pH of 5.0 to 6.0, preferably 5, 5 set. If thickeners are used in the composition according to the invention, the pH is preferably in the neutral range (pH 6.5 to 7.5).

The compositions according to the invention are preferably formulated as concentrate to be diluted before use. They can be prepared by mixing directly from their raw materials, then mixing and final standing of the agent to freedom from bubbles. The agents according to the invention are preferably used for cleaning hard surfaces. Hard surfaces in the context of this application are windows, mirrors and other glass surfaces, surfaces made of ceramic, plastic, metal or wood and lacquered wood, which are found in household and commercial, such as bathroom ceramics, kitchen surfaces or floors. The cleaning agent is preferably diluted with water before use.

Another subject of the invention is therefore the use of a cleaning agent according to the invention for cleaning hard surfaces after dilution.

For cleaning hard surfaces with the agent according to the invention, the following has proven a method in which the cleaning agent according to the invention is first diluted with water, the resulting cleaning liquor is applied to the surface to be cleaned, the agent then with the aid of a cloth, a sponge or of another suitable substrate is spread on the surface and finally dries. A further subject of the invention is accordingly a process for cleaning hard surfaces, comprising the steps of a) producing a cleaning liquor by diluting a cleaning agent according to one of claims 1 to 9 with water, b) applying the diluted cleaning agent to the surface to be cleaned, c) Wipe with a cloth, sponge, leather or other suitable substrate for this purpose to spread the agent over the entire surface; d) allow to dry.

Exemplary compositions:

Detergents E1 to E4 according to the invention have been formulated, the composition of which is given in the table below (quantities in% by weight). The pH is adjusted by adding sodium hydroxide.

In addition, the comparative formulations V1 to V5 not according to the invention were prepared. The pH was also adjusted by the addition of sodium hydroxide, the amounts are again indicated in wt .-%.

The compositions E1 to E4 according to the invention and the comparison agents V1 to V5 were each subjected to a test of the cleaning performance in dilute aqueous solution (12 g / l) in accordance with the quality standards of the Industrieverband Putz- und Pflegemittel eV (IPP). In this test, a white surface treated with test soil (aged mixture of oil, kaolin and black pigment) is wiped with a cloth soaked with the product to be tested. For this purpose, a multi-track wiper device is used. The cleaning result is determined by means of a remission colorimeter against a white standard.

The compositions of the invention showed a significant increase in the cleaning performance in comparison to the comparative formulations V3 to V5. Although V1 showed a comparable cleaning performance, but contains in contrast to the inventive compositions a poorly anaerobically degradable linear alkylbenzenesulfonate (LAS).

Claims

claims

1. An aqueous hard surface cleaning composition comprising at least one fatty acid or a salt thereof, characterized in that it further contains at least one Alkylamido- alkylamine.

2. Cleaning agent according to claim 1, characterized in that the alkylamidoalkylamine is preferably selected from the group comprising Disodium Cocoamphodiacetate, Disodium Lauroamphodiacetate, Sodium Stearoamphoacetate, Sodium Cocoamphoacetate, Disodium Cocoamphodipropionate, Disodium Stearoamphodiacetate and mixtures thereof and particularly preferably Disodium Cocoamphodiacetate (Natriumkokosampho- diacetat) is.

3. Cleaning agent according to one of claims 1 and 2, characterized in that it contains Alkylamidoalkylamine preferably in amounts of 0.1 to 10 wt.%, Particularly preferably 0.2 to 5 wt.%.

4. Cleaning agent according to one of the preceding claims, characterized in that it further contains at least one nonionic surfactant.

5. Cleaning agent according to claim 4, characterized in that it preferably contains up to 10 wt .-% of one or more nonionic surfactants, particularly preferably 0.01 to 5 wt .-%.

6. Cleaning agent according to one of the preceding claims, characterized in that it contains at least one alkylpolyglycoside.

7. Cleaning agent according to one of the preceding claims, characterized in that it contains at least one amine oxide.

8. Cleaning agent according to one of the preceding claims, characterized in that it is free of linear alkylbenzenesulfonate surfactants.

9. cleaning agent according to one of the preceding claims, characterized in that it contains further, usually used in cleaning ingredients, preferably selected from the group comprising other surfactants, bases, acids, viscosity modifiers, solvents, other polymers, antibacterial agents, preservatives, Solubilizers, complexing agents, enzymes, dyes, fragrances and mixtures thereof.

10. Use of a cleaning agent according to one of the preceding claims for cleaning hard surfaces after dilution.

11. A method for cleaning hard surfaces, comprising the steps of a) preparing a cleaning liquor by diluting a cleaning agent according to one of claims 1 to 9 with water, b) applying the diluted cleaning agent to the surface to be cleaned, c) wiping with a cloth, a sponge, a leather or other suitable substrate for this purpose to distribute the agent over the entire surface, d) allow to dry.