Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/825—Mixtures of compounds all of which are non-ionic
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/835—Mixtures of non-ionic with cationic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/40—Monoamines or polyamines; Salts thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/662—Carbohydrates or derivatives
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
  • C11D1/721—End blocked ethers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/90—Betaines

Definitions

• the present invention relates to mixtures of surface-active substances for use in cleaning agents and in particular in dishwashing detergents for automatic dishwashing.
• the cleaning of hard surfaces and especially the washing of dishes makes special demands on the cleaner used. This applies in particular to automatic dishwashing.
• the three components of the machine system are cleaner, rinse aid and regenerating salt.
• the central tasks of the main component cleaners are the soil release, the dirt dispersion, the binding of residual water hardness and the corrosion inhibition.
• Conventional multifunctional automatic dishwashing detergents (so-called "ADD" automatic dish detergents) have a much poorer drying performance compared to the conventional rinse aid system (detergent, salt and rinse aid as separate products). Drying performance is to be understood in how far a dishwashing item which has been cleaned with a dishwashing detergent still has water, preferably water droplets, on the surface after passing through the dishwashing process.
• the EP 1 306 423 A2 discloses aqueous detergents which contain alkyl ether sulfates and amphoteric glycine compounds and are suitable for improving the drying behavior of dishwashing detergents.
• the DE 100 45 289 A1 describes hand dishwashing detergents which contain certain quaternary ammonium compounds and alkyl ether sulfates side by side and also show a particularly good drying behavior.
• additives for cleaning agents must not adversely affect the rinsing and in particular the rinse performance of the cleaner. Ideally, an additive should even improve the overall performance of the cleaner.
• An essential parameter for dishwashing is the rinse aid performance. It is determined how large the proportion of deposits on the dishes, after they were rinsed.
• the deposits are essentially mineral compounds, in particular Ca and / or Mg salts, but also surfactant residues.
• lime mainly leads to undesirable deposits for the user.
• common dishwashing agents in particular those for automatic dishwashing, generally contain so-called rinse aid.
• rinse aids usually comprise mixtures of low foaming nonionic surfactants, typically fatty alcohol polyethylene / polypropylene glycol ethers, solubilizers (eg cumene sulfonate), organic acids (eg citric acid) and solvents (eg ethanol) It is to influence the interfacial tension of the water so that it can run in a very thin, coherent film of items to be washed, so that remain in the subsequent drying process no water droplets, stripes or films. There are differences between two types of deposits. On the one hand, the so-called “spotting”, which is caused by drying drops of water, is examined. On the other hand, the "filming”, which are layers that result from the drying of thin water films, is evaluated. For the evaluation, test persons are currently used who visually evaluate the parameters "spotting” and “filming” for cleaned objects, eg plates, glasses, knives, etc.
• solubilizers eg cumene sulfonate
• organic acids eg citric acid
• solvents
• the present invention therefore relates, in a first embodiment, to mixtures comprising at least two different surface-active substances from groups a) and b), the surface-active compound a) being selected from compounds of the general formula (I) R 1 O [CH 2 CH 2 O] x CH 2 CH (OM) R 2 (I) in which R 1 is a linear or branched alkyl and / or alkenyl radical having 4 to 22 carbon atoms, or a radical R 2 is -CH (OH) CH 2 , where R 2 is a linear or branched alkyl and / or Alkenyl radical having 8 to 16 carbon atoms, x is a number from 40 to 80, and M is a hydrogen atom or a saturated alkyl radical having 1 to 18 carbon atoms,
• the mixtures according to the invention necessarily contain compounds of the type a). These are so-called hydroxy mixed ethers or their derivatives. Hydroxy mixed ethers (HMEs) follow the general formula R'O [AO] x CH 2 CH (OM) R 'in which R' represents a linear or branched alkyl and / or alkenyl group containing 4 to 22 carbon atoms, R "is a linear or branched alkyl and / or alkenyl radical having 2 to 22 carbon atoms x is 10 to 80 and AO represents an ethylene oxide, propylene oxide or butylene oxide radical and M can stand for a hydrogen atom or an alkyl or alkenyl radical.
• HMEs Hydroxy mixed ethers
• hydroxy mixed ethers are known from the literature and are described, for example, in US Pat German application DE 19738866 described. They are prepared, for example, by reacting 1,2-epoxyalkanes (R "CHOCH 2 ), where R" is an alkyl and / or alkenyl radical having 2 to 22, in particular 6 to 16 carbon atoms, with alkoxylated alcohols.
• R'-OH 1,2-epoxyalkanes
• R'-OH having 4 to 18 carbon atoms
• R ' is an aliphatic, saturated, straight-chain or branched alkyl radical, in particular having 6 to 16 carbon atoms, stands.
• Suitable straight-chain alcohols are butanol-1, caproic, eananthic, caprylic, pelargonic, capric alcohol, undecanol-1, lauryl alcohol, tridecanol-1, myristyl alcohol, pentadecanol-1, palmityl alcohol, heptadecanol-1, stearyl alcohol, nonadecanol- 1, arachidyl alcohol, heneicosanol-1, behenyl alcohol and their technical mixtures, as obtained in the high pressure hydrogenation of technical methyl esters based on fats and oils.
• branched alcohols are so-called oxo alcohols, which usually carry 2 to 4 methyl groups as branches and are prepared by the oxo process and so-called Guerbet alcohols which are branched in the 2-position with an alkyl group.
• Suitable Guerbet alcohols are 2-ethylhexanol, 2-butyloctanol, 2-hexyldecanol and / or 2-octyldodecanol.
• the alcohols are used in the form of their alkoxylates, which are prepared by reaction of the alcohols with ethylene oxide in a known manner.
• other hydroxy mixed ethers are known, namely those which have more than one free hydroxyl group in the molecule.
• Such compounds can be prepared, for example, by reacting diols, preferably alkylene glycols and their derivatives, preferably polyethylene glycols, each with two moles of an alkyl epoxide (R-CHOCH 2 ) per mole of the diol.
• the present invention now makes use of the finding that the presence of selected HME, or of their derivatives, namely compounds of general formula (I) in combination with structurally different surface-active compounds of type b), have advantageous drying and / or drying properties. or the rinse aid performance of detergent formulations for hard surfaces, and particularly dishwashing detergents.
• R 1 O [CH 2 CH 2 O] x CH 2 CH (OM) R 2 (I) in which R 1 is a linear or branched alkyl and / or alkenyl radical having 4 to 22 carbon atoms, or a radical R 2 is -CH (OH) CH 2 , where R 2 is a linear or branched alkyl and / or Alkenyl radical having 8 to 16 carbon atoms, x represents a number from 40 to 80, and M represents a hydrogen atom or a saturated alkyl radical having 1 to 18 carbon atoms.
• Preferred for the purposes of the invention are those hydroxy mixed ethers which are derived from ethoxylates of monohydric alcohols of the formula R 1 -OH having 6 to 18 carbon atoms, preferably 6 to 16 and especially 8 to 10 carbon atoms, where R 1 is a linear alkyl radical and x for 40 to 60.
• R 1 is a linear alkyl radical and x for 40 to 60.
• those compounds of the general formula (I) are preferred in which the index x is a number from 40 to 70, preferably 40 to 60 and in particular from 40 to 50.
• M is then a hydrogen atom.
• hydroxy mixed ethers of the formula (I) where R 1 is an alkyl radical having 8 to 10 carbon atoms, in particular based on a native fatty alcohol, R 2 is an alkyl radical having 10 carbon atoms, in particular a linear alkyl radical and x is 40 to 60 stands.
• R 1 is an alkyl or alkenyl radical having 8 to 10 carbon atoms
• R 2 is a radical having 8 to 12 carbon atoms
• M is a saturated alkyl radical with 1 to 6, preferably 1 to 4 carbon atoms.
• the latter compound contains no free hydroxyl groups - rather, the hydroxyl functions have been alkylated with suitable reagents, for example alkyl halides.
• the present invention requires that at least one compound of type a) is used in combination with one of the compounds of type b) described below.
• the compounds of the type b1) follow the formula (II) R 3 O [CH 2 CHCH 3 O] z [CH 2 CH 2 O] y CH 2 CH (OH) R 4 (II) in which R 3 is a linear or branched alkyl and / or alkenyl radical having 8 to 22 carbon atoms, R 4 is a linear or branched alkyl and / or alkenyl radical having 8 to 16 carbon atoms, y is a number of 10 and 35, z is zero or must be a number from 1 to 5.
• Particularly preferred compounds of type b1) are, for example, those in which in the formula (II) the subscript y stands for a number from 20 to 30, preferably from 20 to 25.
• R 3 in the formula (II) represents an alkyl radical having 8 to 12, preferably 8 to 10, carbon atoms
• R 4 represents an alkyl radical having 10 to 12, preferably 10 carbon atoms
• y a number from 15 to 35, preferably 20 to 30
• z is a number from 1 to 3, preferably 1 means.
• mixtures which contain as surface-active compound of type b1) a compound of the general formula (II) in which R 3 is an alkyl and / or alkenyl radical having 11 to 18 carbon atoms and R 4 is an alkyl or Alkenyl radical having 8 to 10 carbon atoms and y is a number from 20 to 35.
• mixtures containing as surface-active compound of type b1) a compound of the general formula (II) in which R 3 is an alkyl and / or alkenyl radical having 8 to 12 carbon atoms and R 4 is an alkyl or Alkenyl radical having 8 to 10 carbon atoms and y is a number from 20 to 35 and z is a number from 1 to 3.
• the compounds of type b1) are also hydroxy mixed ether derivatives which can be prepared by reacting propoxylated and / or ethoxylated fatty alcohols with alkyl epoxides by ring opening in an alkaline medium.
• R 5 is linear or branched alkyl and / or alkenyl radicals having 8 to 22 carbon atoms and z is a number from 1 to 20, and preferably from 1 to 15, and especially from 1 to 10.
• Typical examples are the adducts of on average 1 to 20 moles of caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and Brassidyl alcohol and their technical mixtures, for example, in the High-pressure hydrogenation of technical methyl esters based on fats and oils or aldehydes from the Roelen oxo synthesis and as a monomer fraction in the dimerization of unsaturated fatty alcohols incurred.
• technical fatty alcohols having 12 to 18 carbon atoms such as, for example, coconut, palm, palm kernel or preferably tallow fatty alcohol.
• Particularly preferred fatty alcohol ethoxylates are based on tallow alcohols ethoxylated with 2 to 10 and preferably 2 to 5 moles of ethylene oxide per mole of alcohol.
• R 6 CO- (OC 2 H 4 ) m -OR 7 where R 6 is an alkyl and / or alkenyl radical having 7 to 21 carbon atoms and m is a number from 11 to 100, and R 7 represents a hydrogen atom or a radical CO-R 6 .
• R 6 R 7
• R 6 R 7
• R6 ⁇ R7 unbalanced connections
• compounds of the type b3) which are based on polyethylene glycols having molecular weights of between 1000 and 10 000 and preferably from 1500 to 6000 and in particular from 1500 to 3000, in the compositions according to the invention. Particular preference is given to diester compounds of type b3).
• polyglycols may also be present as by-products.
• alky (oligo) glycosides These compounds are also known as alky (oligo) glycosides.
• Alkyl and alkenyl oligoglycosides are known nonionic surfactants which follow the formula R 8 O- [G] p in which R 8 is an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p stands for numbers from 1 to 10. They can be obtained by the relevant methods of preparative organic chemistry.
• the alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses having 5 or 6 carbon atoms, preferably glucose.
• the preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides.
• alkyl and / or alkenyl oligoglycosides having an average degree of oligomerization p of from 1.1 to 3.0. From an application point of view, those alkyl and / or alkenyl oligoglycosides whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4 are preferred.
• the alkyl or alkenyl radical R 8 can be derived from primary alcohols having 4 to 11, preferably 8 to 10 carbon atoms.
• Typical examples are butanol, caproic alcohol, caprylic alcohol, capric alcohol and undecyl alcohol and technical mixtures thereof, as obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the hydrogenation of aldehydes from Roelen's oxo synthesis.
• the alkyl or alkenyl radical R 8 can also be derived from primary alcohols having 12 to 22, preferably 12 to 14 carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and technical mixtures thereof which can be obtained as described above. Preference is given to alkyl oligoglucosides based on hydrogenated C 12/14 coconut alcohol having a DP of 1 to 3.
• Betaines are known surfactants which are predominantly produced by carboxyalkylation, preferably carboxymethylation of aminic compounds.
• the starting materials are condensed with halocarboxylic acids or their salts, in particular with sodium chloroacetate, wherein one mole of salt is formed per mole of betaine.
• unsaturated carboxylic acids such as acrylic acid is possible.
• betaines are the carboxyalkylation products of secondary and especially tertiary amines which follow formula (1) in the R I for alkyl and / or alkenyl radicals having 6 to 22 carbon atoms, R II is hydrogen or alkyl radicals having 1 to 4 carbon atoms, R III is alkyl radicals having 1 to 4 carbon atoms, n is from 1 to 6, and X is a Alkali and / or alkaline earth metal or ammonium.
• Typical examples are the carboxymethylation products of hexylmethylamine, hexyldimethylamine, octyldimethylamine, decyldimethylamine, dodecylmethylamine, dodecyldimethylamine, dodecylethylmethylamine, C 12/14 cocoalkyldimethylamine, myristyldimethylamine, cetyldimethylamine, stearyldimethylamine, stearylethylmethylamine, oleyldimethylamine, C 16/18 tallowalkyldimethylamine, and technical mixtures thereof.
• R IV CO is an aliphatic acyl radical having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds
• m is a number from 1 to 3
• R II , R III , n and X have the meanings given above.
• Typical examples are reaction products of fatty acids having 6 to 22 carbon atoms, namely caproic, caprylic, capric, lauric, myristic, palmitic, palmitic, stearic, isostearic, oleic, elaidic, petroselic, linoleic, linolenic, elaeostearic, arachidic, gadoleic, behenic and erucic acids and their technical mixtures, with N, N-dimethylaminoethylamine, N, N-dimethylaminopropylamine, N, N-diethylaminoethylamine and N, N-diethylaminopropylamine, which is condensed with sodium chloroacetate.
• the use of a condensation product of C 8/18 coconut fatty acid N, N-dimethylaminopropylamide with sodium chloroacetate is preferred.
• Suitable starting materials for the betaines to be used in the context of the invention are imidazolines which follow the formula (3), in which R V is an alkyl radical having 5 to 21 carbon atoms, R 6 is a hydroxyl group, an OCOR V or NHCOR V radical and m is 2 or 3.
• R V is an alkyl radical having 5 to 21 carbon atoms
• R 6 is a hydroxyl group
• an OCOR V or NHCOR V radical an hydroxyl group
• m is 2 or 3.
• These substances are also known substances which can be obtained, for example, by cyclizing condensation of 1 or 2 moles of fatty acid with polyhydric amines, such as, for example, aminoethylethanolamine (AEEA) or diethylenetriamine.
• AEEA aminoethylethanolamine
• the corresponding carboxyalkylation products are mixtures of different open-chain betaines.
• Typical examples are condensation products of the abovementioned fatty acids with AEEA, preferably
• nonionic compounds which are also known, are prepared, for example, by reacting alkyl epoxides with ethylene glycol and then with further ethylene oxide. These are also commercially available substances. They follow the general formula (III) in which R 9 is a linear or branched alkyl and / or alkenyl radical having 4 to 22 carbon atoms and o is a number from 1 to 20 and the subscript p is zero or numbers from 1 to 20.
• R 11 is independently zero or a number from 1 to 50
• R 12 is a saturated or unsaturated, branched or unbranched alkyl or alkenyl radical having 8 to 16 carbon atoms.
• These compounds are prepared, for example, by reacting compounds of type (III) with further alkylene oxide having C chains in the range of 8 to 18 carbon atoms under the conditions of alkaline catalysis.
• Compounds of type b8) are, for example obtainable by ethoxylation of alkylamines or of triethanolamine and subsequent reaction with alkylene oxides with alkyl chains having 8 to 18 carbon atoms under conditions of alkaline catalysis.
• the compounds b1) to b8) can each be combined alone with at least one compound of the type a). Particularly preferred are binary mixtures of a) and a compound of type b) and in particular the compounds of type b1). However, it is also possible to combine mixtures of different substances of the type class b) with the HME of the type a). It may be advantageous for mixtures containing a plurality of different compounds of type b) to use these compounds in a weight ratio of 1: 1.
• fatty alcohols are to be understood as meaning primary aliphatic alcohols of the formula ROH in which R is an aliphatic, linear or branched hydrocarbon radical having 6 to 22 carbon atoms and 0 and / or 1, 2 or 3 double bonds.
• Typical examples are caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol and the like technical mixtures which are obtained, for example, in the high-pressure hydrogenation of technical methyl esters based on fats and oils or aldehydes from Roelen's oxosynthesis and as a monomer fraction in the dimerization of unsaturated fatty alcohols.
• Preferred are technical fatty alcohols having 12 to 18 carbon atoms, such as coconut, palm, palm kernel
• the compounds of type a) and b) are present in a weight ratio of 10: 1 to 1:10 side by side in the mixtures according to the invention. However, preference may be given to those mixtures in which the surface-active compounds of the type a) and b) in a weight ratio of 5: 1 to 1: 5, in particular from 3: 1 to 1: 3 and particularly preferably from 2: 1 to 1: 2 and most preferably 1: 1 side by side available.
• the compounds of type b1) to b8) can - as stated above - also be present side by side in any mixtures. Preferably, however, the mixtures consist only of a compound of type a) and a compound of type b).
• the mixtures described above are preferably suitable for use in cleaners, in particular in dishwashing detergents and in particular in automatic dishwashing detergents.
• the mixtures can be used for improving the drying performance and / or the rinsing performance of cleaning agents and in particular for dishwashing detergents, preferably for dishwashing detergents for automatic dishwashing.
• agents which contain from 0.1 to 15% by weight of the mixtures according to the invention and also other ingredients customary in detergents and, preferably, dishwashing detergents.
• the detergents contain the mixtures according to the invention in amounts of 0.1 to 8 wt .-% wherein advantageously from 1 to 6.0 wt .-% and in particular amounts of 2.0 to 5 wt .-% are included. Particularly preferred is the range of 2.0 to 4.0 wt .-%.
• compositions according to the invention in the sense of the above description can be, for example, further nonionic, anionic and / or cationic surfactants, builders, enzymes, bleaching agents, such as e.g. Be percarbonates.
• agents may contain silicates, phosphorus compounds, carbonates, but also special rinse aids and other known and customary auxiliaries and additives, e.g. pH regulators or enzymes.
• solvents such as water or lower aliphatic alcohols, preferably ethanol or propanol, solubilizers, polymers or organic acids, preferably citric acid and derivatives thereof.
• the cleaning agents can be both liquid and solid, for example as granules, powders or tablets.
• Liquid detergents may still contain viscosity builders, e.g. to obtain gel-like agents.
• machine dishwashing detergents are in solid form, for example as powders or granules or as shaped articles, preferably in tablet form. It can also be several phases next to each other, for example, a compressed Tablet containing in a bulge a non-compressed part, eg a waxy rinse aid phase.
• Such multifunctional agents are marketed as 2-in-1 or 3-in-1 products.
• the preparation is carried out in any manner known to the person skilled in the art, wherein in a preferred embodiment the mixtures according to the invention are present as a compound and are preferably mixed with the other ingredients in any order.
• the machine is loaded with a practice-relevant machine load consisting of 24 porcelain plates, 3 porcelain bowls, 10 porcelain cups, 12 drinking glasses, 4 melamine plates, 6 styrene acrylonitrile (SAN) plates, 2 polypropylene (PP) bowls, 40 pieces of standard stainless steel cutlery.
• SAN styrene acrylonitrile
• PP polypropylene
• Test soil is: 50 g of dirt with the following composition: Based on 1000 g: 25 g each of ketchup, mustard and gravy, 300 g margarine, 150 g drinking milk, 15 g potato starch, 9 g egg yolk, 3 g benzoic acid, balance: water. Each surfactant tested was rinsed three times and tested for drying performance after the drying cycle. The same lighting conditions as well as room humidity and room temperature are always set.
• the grade 1 stands for the best, the grade 5 for the worst result.
• Table 1 indicates what the drying performance rating can be over the mean of all substrates. At the same time, the results from Table 1 demonstrate the state of the art, as well as a water value, ie no cleaners or other additives have been added to the dishwasher. ⁇ u> Table 1 ⁇ / u> formulation number of drops ADD cleaner with classic rinse aid 0.8 3-in-1 brand product 3.6 water 4.1
• Amount of surface-active substance (s) in each case 25 g of the standard formulation Glass plastic total Rinse power on glass Spotting / filming 1 2% by weight of A 0.8 2.3 2 1.5 1.5 2 2% by weight of A 0.2 0.5 0.8 1 1 2% by weight of C 3 2% by weight of A 0.2 0.7 0.8 1 1 2% by weight D 4 4% by weight of E 0.4 0.9 1.1 2 2 5 2% by weight of A 0.6 1.0 1.2 1 1 2% by weight of E 6 2% by weight of A 0.3 0.9 1.3 1 1 1% by weight B 7 4% by weight B 0.4 0.9 1.2 3 3 8th 4% by weight of G 0.3 0.5 0.7 4 4 9 2% by weight of A 0.3 0.6 1.1 1 1 2% by weight of G 10 4% by weight H 0.5 1.8 1.3 2.5 2 11 2% by weight of A 0.3 1.1 1.2 1 1 2% by weight H 12 4% by weight F 0.3 0.7 0.9 4 4 13 2% by weight of A 0.4

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