WO2001021752A1

WO2001021752A1 - Aqueous multi-phase cleaning agent

Info

Publication number: WO2001021752A1
Application number: PCT/EP1999/006983
Authority: WO
Inventors: Rainer Jeschke; Ryszard Katowicz; Georg Meine; Alexander Ditze; Marc Benoit
Original assignee: Henkel Kommanditgesellschaft Auf Aktien
Priority date: 1998-03-16
Filing date: 1999-09-21
Publication date: 2001-03-29
Also published as: DE19811386A1

Abstract

The invention relates to aqueous liquid multi-phase cleaning agents that contain surfactants and consist of at least two continuous phases. The inventive cleaning agent comprises at least one lower aqueous phase I and one upper aqueous phase II non-miscible with said lower phase. The two phases can be temporarily converted to an emulsion by shaking and contain 0 to 5 % by weight sodium hexametaphosphate. The inventive cleaning agents are potent, storage-stable agents for cleaning hard surfaces and are easy to handle. For producing said cleaning agents, aqueous liquid multi-phase cleaning agents that contain surfactants and that consist of at least two continuous phases are used, comprising at least one lower aqueous phase I and one upper aqueous phase II non-miscible with said lower phase, the two phases being temporarily converted to an emulsion by shaking. The method for producing such agents comprises the steps of preparing the substances directly from the starting materials, thoroughly mixing the agents and then leaving them to stand to separate the temporary emulsion.

Description

"Aqueous multi-phase cleaning agent"

The invention relates to aqueous, multi-phase, liquid, surfactant-containing cleaning agents which can be temporarily emulsified by rubble and can be used for cleaning hard surfaces, and to a process for their preparation.

Universally usable cleaning agents for all hard, wet or damp wipeable surfaces in the household and trade are known as so-called all-purpose cleaners and are predominantly neutral to weakly alkaline aqueous liquid products, the 1 to 30 wt .-% surfactants, 0 to 5 wt .-% builder (for example citrates, gluconates, soda, polycarboxylates) 0 to 10% by weight of hydrotropes (for example alcohols, urea), 0 to 10% by weight of water-soluble solvents (for example alcohols, glycol ethers) and optionally, among others Contain skin protection agents, dyes and fragrances. It is usually used as an approx. 1% solution in water, also undiluted for local stain removal. Ready-to-use all-purpose cleaners are also commercially available as so-called spray cleaners.

Such aqueous liquid cleaners are usually present as homogeneous, stable solutions or dispersions. The use of certain, in particular hydrophobic, components in such cleaning agents can, however, result in this homogeneity being lost and inhomogeneous agents being obtained, the acceptance of which can be assessed as low by the consumer. In such cases, alternative formulations are required which, despite their inhomogeneity, have a defined external appearance and application form which is acceptable to the consumer. European patent application 116 422 describes a liquid hair or body shampoo with two aqueous phases which can be temporarily dispersed into one another by Schuttein and where both phases can be mixed with water in any ratio. The upper phase contains 8 to 25% by weight, based on the total composition, of at least one surfactant and the lower phase contains at least 6% by weight, based on the total composition, of dissolved sodium hexametaphosphate of the formula I,

in which n stands for an average of approximately 12. Additional builder salts can optionally be contained in the lower phase. Anionic, cationic, amphoteric and / or nonionic surfactants can be contained as surfactants, preferably at least one anionic surfactant being contained.

The object of the present invention was to provide high-performance and storage-stable means for cleaning hard surfaces in a defined inhomogeneous, easy-to-handle and acceptable form for the consumer.

The invention relates, in a first embodiment, to an aqueous, liquid, multi-phase surfactant-containing cleaning agent with at least two continuous phases, which has at least one lower aqueous phase I and an upper aqueous phase II which is immiscible with this phase and which can be temporarily transferred to an emulsion by rubble , and which contains 0 to 5 wt .-% sodium hexametaphosphate. In the context of the present invention, sodium hexametaphosphate is to be understood as a mixture of condensed orthophosphates of the formula I, where n is an average of about 12.

In the simplest case, an agent according to the invention consists of a lower continuous phase, which consists of the entire phase I, and an upper continuous phase, which consists of the entire phase II. However, one or more continuous phases of an agent according to the invention can also contain parts of another phase in emulsified form, so that in such an agent, for example, phase I is partly present as continuous phase I, which is the lower continuous phase of the agent, and one other part than discontinuous phase I is emulsified in the upper continuous phase II. The same applies to phase II and other continuous phases.

In the context of the present invention, temporary is understood to mean that 90% of the separation of the emulsion formed by Schuttein in the separate phases takes place at temperatures of about 20 ° C. to about 40 ° C. within 2 minutes to 10 hours and the last 2 % of the separation into the phase state before the rubble occurs within a further 15 minutes to 50 hours.

In a second embodiment, the invention relates to the use of an aqueous liquid multiphase surfactant-containing cleaning agent with at least two continuous phases, which has at least one lower aqueous phase I and one upper aqueous phase II which is immiscible with this phase and which is temporarily converted into an emulsion by rubble let, for cleaning hard surfaces. Insofar as the following explanations relate to the means according to the invention, they apply equally to the means of use according to the invention. The agents according to the invention are characterized by an unusually good cleaning performance on stubborn grease soiling when used undiluted. In addition, the agents show favorable residue behavior. The individual phases on average are stable over a long period of time without, for example, deposits being formed, and the conversion into a temporary emulsion remains reversible even after frequent shaking. In addition, the separation of ingredients in separate phases can require the chemical stability of the agent.

The invention also relates to a process for the preparation of an agent according to the invention by mixing it directly from its raw materials, then mixing it and finally standing the agent to separate the temporary emulsion.

In a preferred embodiment of the invention, the continuous phases I and II are delimited from one another by a sharp boundary surface.

In a further preferred embodiment of the invention, one or both of the continuous phases I and II contain parts, preferably 0.1 to 25% by volume, in particular 0.2 to 15% by volume, based on the volume of the respective continuous phase, the other phase as a dispersant. The continuous phase I or II is then reduced by the volume that is distributed as a dispersant in the other phase. Agents in which phase I is emulsified in phase II in amounts of 0.1 to 25% by volume, preferably 0.2 to 15% by volume, based on the volume of phase II, are particularly preferred.

In a further preferred embodiment of the invention, in addition to the continuous phases I and II, part of the two phases is present as an emulsion of one of the two phases in the other phase, this emulsion not being present due to two sharp interfaces, an upper and a lower one parts of phases I and II involved in the emulsion are delimited. The agents according to the invention contain phase I and phase II in a volume ratio of 90:10 to 10:90, preferably 75:25 to 25:75, in particular 65:35 to 35:65.

In a particularly advantageous embodiment of the invention, the agents contain one or more hydrophobic components. Suitable hydrophobic components are, for example, dialkyl ethers with the same or different C 1 -C ₄ -alkyl radicals, ms-special dioctyl ethers; Hydrocarbons with a boiling range from 100 to 300 ° C, in particular 140 to 280 ° C, for example aliphatic hydrocarbons with a boiling range from 145 to 200 ° C, isoparaffins with a boiling range from 200 to 260 ° C; essential oils, in particular limonene and Pme Oil extracted from pine roots and stumps; and also mixtures of these hydrophobic components, in particular mixtures of two or three of the hydrophobic components mentioned. Preferred mixtures of hydrophobic components are mixtures of various dialkyl ethers, of dialkyl ethers and hydrocarbons, of dialkyl ethers and essential oils, of hydrocarbons and essential oils, of dialkyl ethers and hydrocarbons and essential oils and of these mixtures. The agents contain hydrophobic components in amounts, based on the composition, of 0 to 20% by weight, preferably 0.1 to 14% by weight, in particular 0.5 to 10% by weight, most preferably 0.8 to 7 wt .-%.

The agents according to the invention can contain phase separation aids. Suitable phase separation aids are, for example, the alkali metal and alkaline earth metal chlorides and sulfates, especially sodium and potassium chloride and sulfates, and ammonium chloride and sulfates or mixtures thereof. As strong electrolytes, the salts mentioned support the phase separation through the salt effect. Builder salts also have this effect as electrolytes and are accordingly also suitable as phase separation aids. The compositions contain phase separation auxiliaries in amounts, based on the composition, of 0 to 30% by weight, preferably se 1 to 20 wt .-%, in particular 3 to 15 wt .-%, most preferably 5 to 12 wt .-%.

The agents according to the invention can contain anionic, nonionic, amphoteric or cationic surfactants or surfactant mixtures from one, several or all of these classes of surfactants as the surfactant component. The compositions contain surfactants in amounts, based on the composition, of 0.01 to 30% by weight, preferably 0.1 to 20% by weight, in particular 1 to 14% by weight, extremely preferably 3 to 10% by weight. -%.

Suitable nonionic surfactants are, for example, C ₈ -C ₁₈ alkyl alcohol polyglycol ethers, alkyl polyglycosides and nitrogenous surfactants or mixtures thereof, in particular the first two. The compositions contain nonionic surfactants in amounts, based on the composition, of 0 to 30% by weight, preferably 0.1 to 20% by weight, in particular 0.5 to 14% by weight, extremely preferably 1 to 10% by weight .-%.

C ₈ -C ₈ _alkyl alcohol _{polypropylene} glycol / polyethylene _glycol ethers are preferred known nonionic surfactants. They can be described by the formula II, R ^x O - (CH ₂ CH (CH ₃ ) 0) _p (CH ₂ CH ₂ 0) _e -H in which R ^{1 is} a linear or branched, aliphatic alkyl and / or alkenyl radical having 8 to 18 carbon atoms, p is 0 or numbers from 1 to 3 and e is numbers from 1 to 20.

The C ₈ -C ₈ _-alkyl alcohol _polyglycol ethers of the formula II can be obtained by addition of propylene oxide and / or ethylene oxide to alkyl alcohols, preferably to fatty alcohols. Typical examples are polyglycol ethers of the formula II in which R ^{Λ is} an alkyl radical having 8 to 18 carbon atoms, p is 0 to 2 and e is a number from 2 to 7. Preferred representatives are, for example C -C _lc _ι4 fatty alcohol + 6EO + LPO ether (p = 1, e = 6) and Cι ₂ -Cι ₈ - fatty alcohol + 7EO ether (p = 0, e = 7) and mixtures thereof , End-capped C ₈ -C ₈ _{-alkyl alcohol} polyglycol ethers can also be used, ie compounds in which the free OH group is etherified in the formula II. The end-capped C ₈ -C ₈ _alkyl alcohol _polyglycol ethers can be obtained by the relevant methods of preparative organic chemistry. Preferably, C ₈ -C ₈ alkyl alcohol polyglycol ethers in the presence of bases are reacted with alkyl halides, in particular butyl or benzyl chloride. Typical examples are mixed ethers of the formula II in which R ^{1 is} an industrial fatty alcohol radical, preferably C _2/ 14-coconut alkyl radical, p is 0 and e is 5 to 10, which are sealed with a butyl group.

Preferred nonionic surfactants are furthermore alkyl polyglycosides (APG) of the formula III, R ² 0 [G] _x , in which R ² for a linear or branched, saturated or unsaturated alkyl radical having 8 to 22 carbon atoms, [G] for a glycosidically linked Sugar residue and x stand for a number from 1 to 10. APG are non-ionic surfactants and are known substances that can be obtained using the relevant methods of preparative organic chemistry. The index number x in the general formula III indicates the degree of oligo erization (DP degree), ie the distribution of mono- and oligoglycosides, and stands for a number between 1 and 10. While x must always be an integer in a given compound and here can assume the values x = 1 to 6 in particular, the value x for a certain alkyl glycoside is an analytically determined arithmetic parameter, which usually represents a broken number. Alkyl glycosides with an average degree of oligomerization x of 1.1 to 3.0 are preferably used. From an application point of view, those alkyl glycosides are preferred whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.6. Xylose, but especially glucose, is preferably used as the glycosidic sugar.

The alkyl or alkenyl radical R ² (formula III) can be derived from primary alcohols having 8 to 18, preferably 8 to 14, carbon atoms. Typical examples are capronic alcohol, caprylic alcohol, capric alcohol and undecyl alcohol and their technical mixtures, such as those used in the course of the hydrogenation of technical Fatty acid methyl esters or in the course of the hydrogenation of aldehydes from RoELEN's oxosynthesis.

However, the alkyl or alkenyl radical R ² is preferably derived from lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol or oleyl alcohol. Elaidyl alcohol, petroselinyl alcohol, arachidyl alcohol, gadolinyl alcohol, behenyl alcohol, erucyl alcohol and their technical mixtures are also to be mentioned.

Nitrogen-containing surfactants may be included as further nonionic surfactants, e.g. Fatty acid polyhydroxyamides, for example glucamides, and ethoxylates of alkylamines, vicinal diols and / or carboxylic acid amides, which have alkyl groups with 10 to 22 C atoms, preferably 12 to 18 C atoms. The degree of ethoxylation of these compounds is generally between 1 and 20, preferably between 3 and 10. Ethanolamide derivatives of alkanoic acids with 8 to 22 C atoms, preferably 12 to 16 C atoms, are preferred. The particularly suitable compounds include lauric acid, myristic acid and palmitic acid monoethanolamides.

Suitable anionic surfactants are the preferred C ₈ -C ₈ _alkyl sulfates, C ₈ -C ₈ alkyl ether sulfates, ie the sulfation products of the alcohol ethers of the formula II, and / or C ₈ -C ₈ _alkyl benzene sulfonates, but also C ₈ -C ₈ _B Alkanesulfonates, C _B -C ₁₈ -α-01efinsulfonates, sulfonated C ₈ -C ₈ fatty acids, in particular dodecylbenzenesulfonate, C ₈ -C ₂ 2- carboxamide amide sulfates, sulfonic succinic acid mono- and di-Ci-C _ι ; alkyl esters, C ₈ -C ₈ -alkyl polyglycol ether carboxylates, C _B -C ₁ -N- acyl taurides, C ₈ -C ₈ -N sarcosinates and C ₈ -C ₈ -alkyl isethionates or mixtures thereof. They are in the form of their alkali metal and alkaline earth metal salts, in particular sodium, potassium and magnesium salts, as well as ammonium and mono-, di-, tri- or tetraalkylammonium salts and, in the case of sulfonates, also in the form of their corresponding acid, for example Dodecylbenzenesulfonic acid used. The compositions contain anionic surfactants in amounts, based on the composition, of 0 to 30% by weight, preferably 0.1 to 20% by weight, in particular 1 to 14% by weight, extremely preferably 2 to 10% by weight.

Because of their foam-suppressing properties, the agents according to the invention can also contain soaps, ie alkali metal or ammonium salts of saturated or unsaturated C ₆ -C ₂₂ fatty acids. The soaps can be used in an amount of up to 5% by weight, preferably from 0.1 to 2% by weight.

Suitable amphoteric surfactants are, for example, betaines of the formula (R ³ ) (R ⁴ ) (R ⁵ ) N ⁺ CH ₂ COO ^~ , in which R ^{3 is} an alkyl radical with 8 to 25, preferably 10 to 21, carbon atoms which is optionally interrupted by hetero atoms or hetero atom groups and R ⁴ and R ^{5 are} identical or different alkyl radicals having 1 to 3 carbon atoms, in particular C ₁₀ -C ₈ -alkyl-dimethylcarboxymethylbetaine and -CC ₇ -alkylamido propyl-dimethylcarboxymethylbetaine. The compositions contain amphoteric surfactants in amounts, based on the composition, of 0 to 15% by weight, preferably 0.01 to 10% by weight, in particular 0.1 to 5% by weight.

Suitable cationic surfactants include the quaternary ammonium compounds of the formula (R ⁶ ) (R ⁷ ) (R ⁸ ) (R ⁹ ) N ⁺ X ^" , in which R ⁶ to R ^{9 represent} four identical or different types, in particular two long and two short-chain, alkyl radicals and X ^"represent an anion, in particular a halide ion, for example didecyl-dimethyl-ammonium chloride, alkyl-benzyl-didecyl-ammonium chloride and mixtures thereof. The compositions contain cationic surfactants in amounts, based on the composition, of 0 to 10% by weight, preferably 0.01 to 5% by weight, in particular 0.1 to 3% by weight.

In a preferred embodiment, the agents according to the invention contain anionic and nonionic surfactants next to one another, preferably C ₈ -C ₈ alkylbenzenesulfonates, C ₈ -C _1B alkyl sulfates and / or C ₈ -C 1 _B alkyl ether sulfates in addition to C ₈ -C ₁₈ alkyl alcohol polyglycol ethers and / or alkyl polyglycosides, in particular C ₈ -C _ι8 -Alkylben- sulfonates in addition to C ₈ -Cι ₈ -Alkylalkoholpolyglykolethern. Furthermore, the agents according to the invention can contain builders. Suitable builders are, for example, alkali metal gluconates, citrates, nitrilotriacetates, carbonates and bicarbonates, in particular sodium gluconate, citrate and nitrilotriacetate as well as sodium and potassium carbonate and bicarbonate, and also alkali metal and alkaline earth metal hydroxide, especially sodium, especially sodium and amines, especially mono- and triethanolamine, or mixtures thereof. These include the salts of glutaric acid, succinic acid, adipic acid, tartaric acid and benzene hexacarboxylic acid as well as phosphonates and phosphates. The compositions contain builders in amounts, based on the composition, of 0 to 20% by weight, preferably 0.01 to 12% by weight, in particular 0.1 to 8% by weight, extremely preferably 0.3 to 5 % By weight, but the amount of sodium hexametaphosphate - with the exception of the agents used - is limited to 0 to 5% by weight. As electrolytes, the builder salts are also phase separation aids.

In addition to the components mentioned, the agents according to the invention can contain further auxiliaries and additives as are customary in such agents. These include, in particular, polymers, soil release agents, solvents (eg ethanol, isopropanol, glycol ether), solubilizers, hydrotropes (eg cumene sulfonate, octyl sulfate, butyl glucoside, butyl glycol), cleaning boosters, viscosity regulators (e.g. synthetic polymers such as polysaccharides , Polyacrylates, naturally occurring polymers and their derivatives such as xanthan gum, other polysaccharides and / or gelatin), pH regulators (e.g. citric acid, alkanolamines or NaOH), disinfectants, antistatic agents, preservatives, bleaching systems, enzymes, perfume, dyes and fragrances as well as opacifiers or skin protection agents, as described in EP-A-522 556. The amount of such additives is usually not more than 12% by weight in the cleaning agent. The lower limit of use depends on the type of additive and can be used, for example, in the case of dyes up to 0.001% by weight and under amount. The amount of auxiliaries is preferably between 0.01 and 7% by weight, in particular 0.1 and 4% by weight.

The pH of the agents according to the invention can be varied over a wide range, but a range from 2.5 to 12, in particular 5 to 10.5, is preferred. In the context of the present invention, the pH of the agents according to the invention means the pH of the agent in the form of the temporary emulsion.

The agents according to the invention can be prepared by mixing them directly from their raw materials, then mixing them and then standing the agent to separate the temporary emulsion.

B e i s p i e l e

The agents E1 to E7 according to the invention were produced as described above. Their compositions in% by weight and their pH are shown in Table 1. The agents show two continuous phases, the upper one being slightly milky and temporarily forming a creamy-looking emulsion on the rubble. The components used were a) dodecylbenzenesulfonic acid, b) Cιo-C _{ι4 fatty} alcohol + lPO + lEO ether, c) Cι ₂ -C _ι8 fatty alcohol + 7EO ether, d) monoethanolamm, e) sodium hydroxide, f) sodium chloride, g ) Sodium gluconate, h) aliphatic hydrocarbon (boiling range: 145 to

200 ° C), l) isoparaffins (boiling range: 200 to 260 ° C), j) dioctyl ether, k) perfume and 1) water. In addition, agents E1 to E7 contained small amounts of dye.

Table 1

[Ge .- ^• %] El E2 E3 E4 E5 E6 E7 a) 4 4 4 5 4 4 4 b) - 1 - 2 1 - - c) 2 2 2 - 2 2 2 d) 1 0.75 1 1 1 1 - e) - - - - - - 0.5 f) 9 6.5 10 9 8 10 10 g) - - - - 2 - - h) - 5 - - 1 -

1) 5 j) 5 - 5 5 4 5 k) 1 1 1 1 1 1 1

1) ad 100 ad 100 ad 100 ad 100 ad 100 ad 100 ad 100 pH 9.3 8.6 9.3 9.3 9.5 9.5 9.3 9.5

Test of cleaning performance

The test method described below according to Seifen-Ole-Fette-Waxes 1986, 112, p. 371, which provides very reproducible results, was used to test the cleaning ability of the detergent compositions formulated according to the invention. The cleaning agent to be tested was then placed on an artificially soiled white plastic surface. A mixture of carbon black, machine oil, triglyceride from saturated fatty acids and low-boiling aliphatic hydrocarbon was used as artificial soiling for the diluted application of the cleaning agent. The test area of 26 x 28 cm was evenly coated with 2 g of the artificial soiling with the help of a flat brush.

A plastic sponge was soaked in each case with 10 ml of the cleaning agent solution to be tested and moved mechanically on the test surface likewise coated with 10 ml of the cleaning agent to be tested. After 10 wiping movements, the cleaned test area was kept under running water and the loose dirt was removed. The cleaning effect, i.e. the degree of whiteness of the so-called plastic surface was measured with a "Microcolor" color difference measuring device (Dr. Lange). The clean, untreated white plastic surface served as the white standard.

The test was carried out with the cleaning agent El according to the invention in dilute application with a concentration of 6 ml-1 ^"1 and in undiluted application. For comparison, the test was carried out with an all-purpose cleaner with more than 10% by weight of surfactants (VI ) in a diluted application of 6 ml-1 ^"1 as well as in undiluted application.

The cleaning agent E1 according to the invention outperforms the significantly more surfactant-rich cleaner VI both in the dilute application and in the undiluted application. Checking the residue behavior

The residue behavior was checked on black tiles. The residue score of the agents according to the invention is at the level of the commercially available all-purpose cleaners in Germany. This is still the case even if the agents contain hydrophobic components.

Composition of phases I and II

The composition of phases I and II of the cleaning agent E1 according to the invention is shown in Table 2.

Table 2

El Phase I [% by weight] Phase II [% by weight] a) 0 6, 2 c) <0.05 3, 3 d) 1.06 1, 0 f) 11.5 8, 9 j) <0.05 7.9 k) <0.05 1, 6 1) 85.0 70, 7

The upper phase II contains almost the entire amount of surfactant (a, c), hydrophobic component (j) and perfume (k), while the lower phase I contains almost exclusively a part of the phase separation aid (f) and the builder (d) ,

Claims

claims

1. Aqueous, liquid, multi-phase surfactant-containing cleaning agent with at least two continuous phases, which has at least one lower aqueous phase I and one upper aqueous phase II which is immiscible with this phase and which can be temporarily converted into an emulsion by rubble, characterized in that it is 0 to Contains 5% by weight sodium hexametaphosphate.

2. Composition according to one of claim 1, characterized in that the continuous phases I and II are delimited from one another by a sharp boundary surface.

3. Composition according to one of claims 1 or 2, characterized in that one or both of the continuous phases I and II parts, preferably 0.1 to 25 vol .-%, in particular 0.2 to 15 vol .-%, based on the volume of the respective continuous phase, the other phase contained as dispersant.

4. Composition according to one of claims 1 to 3, characterized in that phase I in amounts of 0.1 to 25 vol .-%, preferably 0.2 to 15 vol .-%, based on the volume of phase II, phase II is emulsified.

5. Composition according to one of claims 1 to 4, characterized in that in addition to the continuous phases I and II, a part of the two phases is present as an emulsion of one of the two phases in the other phase, this emulsion by two sharp interfaces, an upper and a lower one, which is delimited from the parts of phases I and II not involved in the emulsion.

6. Agent according to one of claims 1 to 5, characterized in that the agent phase I and phase II in a volume Ratio of 90:10 to 10:90, preferably 75:25 to 25:75, in particular 65:35 to 35:65.

7. Agent according to one of claims 1 to 6, characterized in that the agent additionally hydrophobic components from the

Group of dialkyl ethers with the same or different C ₄ _-C ₄ _-alkyl radicals, in particular dioctyl ether, hydrocarbons with a boiling range from 100 to 300 ° C., in particular 140 to 280 ° C., ethereal oils, in particular limonene and pine oil, and mixtures thereof, in particular mixtures of two or three of the hydrophobic components mentioned.

8. Agent according to one of claims 1 to 7, characterized in that the agent additionally phase separation aid, preferably from the group of alkali metal and alkaline earth metal chlorides and sulfates, especially sodium and potassium chloride and sulfate, and ammonium chloride and sulfate or their mixtures.

9. Agent according to one of claims 1 to 8, characterized in that the agent is anionic surfactant, preferably from the group of C ₈ -C ₈ _alkyl sulfates, the C ₈ -C ₈ _alkyl ether sulfates and C _B -C ₁₈ alkyl benzene sulfonates and their mixtures.

10. Agent according to one of claims 1 to 9, characterized in that the agent contains nonionic surfactant, preferably from the group of C ₈ -C ₈ alkyl alcohol polyglycol ethers, the alkyl polyglycosides and mixtures thereof.

11. Agent according to one of claims 1 to 10, characterized in that the agent is anionic and nonionic surfactant, preferably C ₈ -C ₈ alkylbenzenesulfonates, C _B -C _ι8 alkyl sulfates and / or C _B -C _ι8 alkyl _ether sulfates in addition to C ₈ -C ₈ alkyl alcohol polyglycol ethers and / or alkyl polyglycosides, in particular C ₈ -C ₈ - Alkylbenzenesulfonates in addition to C ₈ -C ₈ alkyl alcohol polyglycol ethers.

12. Agent according to one of claims 1 to 11, characterized in that the agent contains one or more cationic surfactants.

13. Agent according to one of claims 1 to 12, characterized in that the agent additionally builder, preferably from the group of alkali metal gluconates, citrates, nitrilotriacetates, carbonates and bicarbonates, and alkali metal and alkaline earth metal hydroxides, ammonia and amines, especially mono - And triethanolamine, or mixtures thereof, contains.

14. A process for the preparation of an agent according to any one of claims 1 to 13 by mixing directly from its raw materials, then mixing and then standing the agent to separate the temporary emulsion.

15. Use of an aqueous liquid multiphase surfactant-containing cleaning agent with at least two continuous phases, which has at least one lower aqueous phase I and one upper aqueous phase II which is immiscible with this phase and which can be temporarily converted into an emulsion by rubble Cleaning hard surfaces.