EP2989192B1 - Formulations, use of same as or for manufacture of dish-washing agents and their manufacture - Google Patents

Formulations, use of same as or for manufacture of dish-washing agents and their manufacture Download PDF

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Publication number
EP2989192B1
EP2989192B1 EP13774145.0A EP13774145A EP2989192B1 EP 2989192 B1 EP2989192 B1 EP 2989192B1 EP 13774145 A EP13774145 A EP 13774145A EP 2989192 B1 EP2989192 B1 EP 2989192B1
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EP
European Patent Office
Prior art keywords
range
acid
weight
formulation
formulation according
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EP13774145.0A
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German (de)
French (fr)
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EP2989192A1 (en
Inventor
Stephan Hüffer
Alejandra Garcia Marcos
Markus Hartmann
Heike Weber
Mario Emmeluth
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BASF SE
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BASF SE
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Priority claimed from PCT/EP2013/058391 external-priority patent/WO2013160301A1/en
Application filed by BASF SE filed Critical BASF SE
Priority to JP2016509313A priority Critical patent/JP6235120B2/en
Priority to PL13774145T priority patent/PL2989192T3/en
Publication of EP2989192A1 publication Critical patent/EP2989192A1/en
Application granted granted Critical
Publication of EP2989192B1 publication Critical patent/EP2989192B1/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005Other compounding ingredients characterised by their effect
    • C11D3/0073Anticorrosion compositions
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
    • C11D11/0088Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads the liquefied ingredients being sprayed or adsorbed onto solid particles
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents
    • C11D11/02Preparation in the form of powder by spray drying
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/33Amino carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3703Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707Polyethers, e.g. polyalkyleneoxides
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3703Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3723Polyamines or polyalkyleneimines
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3788Graft polymers
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces
    • C11D2111/18Glass; Plastics

Definitions

  • the present invention relates to a process for the preparation of formulations according to the invention and their use as or for the production of dishwashing agents, in particular dishwasher detergents for automatic dishwashing.
  • Dishwashing detergents have many requirements to fulfill. So they have to clean the dishes thoroughly, they should have no harmful or potentially harmful substances in the wastewater, they should allow the draining and drying of the water from the dishes, and they should not cause problems when operating the dishwasher. Finally, they should not lead to aesthetically undesirable consequences on the good to be cleaned. Especially in this context is the glass corrosion.
  • Glass corrosion is caused not only by mechanical effects, for example by rubbing glasses or mechanical contact of the glasses with parts of the dishwasher, but is mainly promoted by chemical influences.
  • certain ions can be released from the glass by repeated mechanical cleaning, adversely altering the optical and thus the aesthetic properties.
  • Glass corrosion has several effects. On the one hand, one can observe the formation of microscopically fine cracks, which are noticeable in the form of lines. On the other hand, one can often observe a general cloudiness, for example a roughening, which makes the glass in question look unaesthetic. Overall, such effects are also subdivided into iridescent discoloration, scoring and surface and annular opacities.
  • WO 2006/108857 discloses alkoxylated polyethyleneimines as additives to detergents.
  • Detergents containing zeolites or polyaminocarboxylates such as EDTA or triethylenediamine pentaacetate as complexing agents are disclosed by way of example.
  • WO 01/96516 suggests formulations containing alkoxylated polyethylenimine for cleaning hard surfaces. For rinsing, purified water is used.
  • Dishwashing agents which contain polyethyleneimine. Such dishwashing agents may contain phosphate or be phosphate-free. It is attributed to them a good inhibition of glass corrosion. Zinc and bismuth-containing dishwashing detergents are not recommended. The glass corrosion, in particular the line corrosion and the turbidity, but is not sufficiently delayed or prevented in many cases.
  • formulations defined above were found, also called formulations according to the invention.
  • Formulations of the invention are heavy metal-free. This is to be understood in the context of the present invention that formulations according to the invention are free of those heavy metal compounds which do not act as bleach catalysts, in particular of compounds of iron and bismuth. In the context of the present invention, "free from” is to be understood in connection with heavy metal compounds as meaning that the content of heavy metal compounds which do not act as bleach catalysts is in the range from 0 to 100 ppm, determined by the Leach method and based on the solids content.
  • the formulation according to the invention has a heavy metal content below 0.05 ppm, based on the solids content of the relevant formulation.
  • heavy metals are all metals having a specific density of at least 6 g / cm 3 .
  • the heavy metals are precious metals and zinc, bismuth, iron, copper, lead, tin, nickel, cadmium and chromium.
  • formulation of the invention contains no measurable levels of zinc and bismuth compounds, that is, for example, less than 1 ppm.
  • compound (A) is the free acid, particularly preferably in partially or completely neutralized form, ie as salt.
  • counterions come, for example, inorganic Cations, for example ammonium, alkali or alkaline earth metal in question, preferably Mg 2+ , Ca 2+ , Na + , K + , or organic cations, preferably ammonium substituted with one or more organic radicals, in particular triethanolammonium, N, N-diethanolammonium, N Mono-C 1 -C 4 alkyldiethanolammonium, for example N-methyldiethanolammonium or Nn-butyldiethanolammonium, and N, N-di-C 1 -C 4 -alkylethanolammonium.
  • inorganic Cations for example ammonium, alkali or alkaline earth metal in question, preferably Mg 2+ , Ca 2+ , Na + , K + , or organic cations, preferably ammonium substituted with one or more organic radicals
  • Very particularly preferred compounds (A) are the alkali metal salts, in particular the sodium salts of methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) and glutamic acid diacetate (GLDA).
  • MGDA methylglycine diacetate
  • IDS iminodisuccinic acid
  • GLDA glutamic acid diacetate
  • MGDA methylglycine diacetate
  • IDS iminodisuccinic acid
  • GLDA glutamic acid diacetate
  • modified alkyleneimine polymers are also briefly referred to as modified polyalkyleneimine (B) in the context of the present invention.
  • alkyleneimine polymers are to be understood as meaning those polymeric materials which are obtained by homo- or copolymerization of one or more cyclic imines, or by grafting a (co) polymer with at least one cyclic imine.
  • examples are polyalkylenepolyamines and polyamidoamines grafted with ethyleneimine.
  • polyalkylenepolyamines are preferably understood as meaning those polymers which contain at least six nitrogen atoms and at least five C 2 -C 10 -alkylene units, preferably C 2 -C 3 -alkylene units per molecule, for example pentaethylenehexamine, and in particular polyethyleneimines ,
  • Alkyleneimine polymer and in particular polyethyleneimine has an average molecular weight (M w ) in the range of 400 to 500 g / mol, determined by light scattering.
  • Polyalkylenepolyamines can be covalently modified in partially quaternized (alkylated) form as the alkyleneimine polymer.
  • Suitable quaternizing agents are, for example, alkyl halides, in particular C 1 -C 10 -alkyl chloride, such as methyl chloride, methyl bromide, Methyl iodide, ethyl chloride, ethyl bromide, n-butyl chloride, tert-butyl chloride, n-hexyl chloride, furthermore epichlorohydrin, dimethyl sulfate, diethyl sulfate and benzyl chloride.
  • the degree of quaternization (alkylation) is preferably 1 to 25, more preferably up to 20 mol%, based on quaternizable (alkylatable) N atoms in alkyleneimine polymer.
  • polyamidoamines grafted with ethyleneimine are suitable as alkyleneimine polymers.
  • Suitable polyamidoamines are obtainable, for example, by reacting C 4 -C 10 -dicarboxylic acids with polyalkylenepolyamines, which preferably contain 3 to 10 basic nitrogen atoms in the molecule.
  • suitable dicarboxylic acids are succinic acid, maleic acid, adipic acid, glutaric acid, suberic acid, sebacic acid or terephthalic acid. It is also possible to use mixtures of the abovementioned dicarboxylic acids, for example mixtures of adipic acid and glutaric acid or mixtures of maleic acid and adipic acid.
  • Adipic acid is preferably used for the preparation of polyamidoamines.
  • Suitable polyalkylenepolyamines which are condensed with the above-mentioned dicarboxylic acids are, for example, diethylenetriamine, triethylenetetramine, dipropylenetriamine, tripropylenetetramine, dihexamethylenetriamine, aminopropylethylenediamine and bisaminopropylethylenediamine.
  • the aforementioned polyalkylenepolyamines can also be used in the form of mixtures in the preparation of polyamidoamine.
  • the preparation of polyamidoamine is preferably carried out in bulk, but may also be carried out in inert solvents, if appropriate.
  • the condensation of dicarboxylic acid with polyalkylenepolyamine takes place at higher temperatures, for example in the range from 120 to 220.degree.
  • the water formed during the reaction is distilled off from the reaction mixture.
  • the condensation may optionally be carried out in the presence of lactones or lactams of carboxylic acids having 4 to 8 carbon atoms.
  • lactones or lactams of carboxylic acids having 4 to 8 carbon atoms In general, from 0.8 to 1.4 mol of a polyalkylenepolyamine are used per mole of dicarboxylic acid.
  • polyamidoamines have primary and secondary NH groups and are soluble in water.
  • Ethyleneimine-grafted polyamidoamines can be prepared by allowing ethyleneimine to act on polyamidoamine described above in the presence of Bronsted acids or Lewis acids, for example sulfuric acid, phosphoric acid or boron trifluoride etherate.
  • ethyleneimine is grafted onto the relevant polyamidoamine.
  • per basic nitrogen atom in the polyamidoamine one can graft 1 to 10 ethyleneimine units, i. H. to 100 parts by weight of polyamidoamine is used about 10 to 500 parts by weight of ethyleneimine.
  • Preferred alkyleneimine polymer is polyethyleneimine.
  • Alkyleneimine polymer is used in the context of the present invention in covalently modified form, specifically in the range from 2 to 80% by weight, preferably from 5 to 60% by weight, of alkylene oxide side chains, based on the total alkoxylated alkyleneimine -Polymer (B).
  • alkoxylation one can use epoxides, for example ethylene oxide, propylene oxide, 1,2-butylene oxide, 2,3-butylene oxide, styrene oxide or epichlorohydrin.
  • Preferred alkoxylation reagents are ethylene oxide and propylene oxide and mixtures of ethylene oxide and propylene oxide.
  • alkoxylated alkyleneimine polymer (B) alkoxylates in the range of 5 to 60 mole percent of the nitrogen atoms of the primary and secondary amino groups of the alkyleneimine polymer.
  • modified polyalkyleneimine (B) is selected from polyethyleneimines reacted with ethylene oxide or propylene oxide.
  • Modified polyalkyleneimine (B) can have as counter ions high molecular weight or low molecular weight anions, organic or preferably inorganic.
  • High molecular weight anions in the context of the present invention have an average molecular weight of 200 g / mol or more, for example up to 2500 g / mol
  • low molecular weight anions have a molecular weight of less than 200 g / mol, for example from 17 to 150 g / mol.
  • Examples of low molecular weight organic counterions are acetate, propionate and benzoate.
  • Examples of low molecular weight inorganic counterions are sulfate, chloride, bromide, hydroxide, carbonate, methanesulfonate and bicarbonate.
  • modified polyalkyleneimine (B) has a cationic charge density of at least 5 meq / g to a maximum of 25 meq / g (milliequivalents / g), preferably to 22 meq / g, with an indication in g of modified polyalkyleneimine (B) without taking into account the counterions.
  • the cationic charge density can be determined, for example, by titration, for example with polyvinyl sulfate solution.
  • modified polyalkyleneimine (B) has a molecular weight distribution M w / M n in the range of 1.1 to 10, preferably 1.5 to 5.
  • formulations according to the invention contain total in the range of 1 to 50% by weight of aminocarboxylate (A), preferably 10 to 25% by weight, in total in the range of 0.001 to 5% by weight of modified polyalkyleneimine (B), preferably 0.02 to 0.5 wt .-%, in each case based on solids content of the relevant formulation.
  • formulation according to the invention contains compound (A) and modified polyalkyleneimine (B) in a weight ratio in the range from 1000 to 1 to 25 to 1.
  • formulation according to the invention is free of phosphates and polyphosphates, wherein hydrogen phosphates are subsumed with, for example, free of trisodium phosphate, pentasodium tripolyphosphate and Hexasatriummetaphosphat.
  • free from in connection with phosphates and polyphosphates in the context of the present invention should be understood to mean that the total content of phosphate and polyphosphate ranges from 10 ppm to 0.2% by weight, determined by gravimetry.
  • Formulations of the invention may contain other components which are advantageous, for example, for use in washing dishes and / or kitchen utensils.
  • formulations according to the invention contain no further components, which are advantageous, for example, for use in dishwashing and / or kitchen utensils, but can easily be formulated with further components and are therefore suitable as starting material.
  • formulations according to the invention contain sodium citrate (C).
  • sodium citrate includes the mono- and preferably the disodium salt with.
  • Sodium citrate can be used as anhydrous salt or as a hydrate, for example as a dihydrate.
  • Preferred bleaching agents (D) are selected from sodium perborate, anhydrous or for example as monohydrate or as tetrahydrate or so-called dihydrate, sodium percarbonate, anhydrous or, for example, as monohydrate, and sodium persulfate, where the term "persulfate” respectively the salt of peracid H 2 SO 5 and the peroxodisulfate includes.
  • the alkali metal salts may each also be alkali metal hydrogencarbonate, alkali metal hydrogen perborate and alkali metal hydrogen persulphate. However, preference is given in each case to the dialkali metal salts.
  • formulation according to the invention contains zero to 50% by weight of sodium citrate (C), preferably 1 to 30% by weight, more preferably at least 5% by weight of sodium citrate (C), determined as anhydrous sodium citrate, a total of zero to 15% by weight of bleaching agent (D), preferably at least 0.5% by weight of bleaching agent (D), selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate. in each case based on solids content of the relevant formulation.
  • formulation according to the invention is solid at room temperature, for example a powder or a tablet.
  • formulation of the invention is liquid at room temperature.
  • the formulation according to the invention is a granulate, a liquid preparation or a gel.
  • the formulation according to the invention contains from 0.1 to 10% by weight of water, based on the sum of all solids of the relevant formulation.
  • formulation according to the invention may comprise further ingredients (E), for example one or more surfactants, one or more enzymes, one or more builders, in particular phosphorus-free builders, one or more cobuilders, one or more alkali carriers, one or more a plurality of bleaching agents, one or more bleach catalysts, one or more bleach activators, one or more bleach stabilizers, one or more defoamers, one or more corrosion inhibitors, one or more builders, buffers, dyes, one or more perfumes, one or more organic solvents, one or more several tableting aids, one or more disintegrating agents, one or more thickeners, or one or more solubilizing agents.
  • surfactants for example one or more surfactants, one or more enzymes, one or more builders, in particular phosphorus-free builders, one or more cobuilders, one or more alkali carriers, one or more a plurality of bleaching agents, one or more bleach catalysts, one or more bleach activators, one or more bleach stabilizers, one or more defoamers
  • surfactants are, in particular, nonionic surfactants and mixtures of anionic or zwitterionic surfactants with nonionic surfactants.
  • Preferred nonionic surfactants are alkoxylated alcohols and alkoxylated fatty alcohols, di- and multiblock copolymers of ethylene oxide and propylene oxide and reaction products of sorbitan with ethylene oxide or propylene oxide, alkyl glycosides and so-called amine oxides.
  • n and n are in the range of zero to 300, where the sum of n and m is at least one.
  • m is in the range of 1 to 100 and n is in the range of 0 to 30.
  • Compounds of the general formula (I) may be block copolymers or random copolymers, preference being given to block copolymers.
  • these may be block copolymers or random copolymers, preference being given to block copolymers.
  • suitable nonionic surfactants are selected from di- and multiblock copolymers, composed of ethylene oxide and propylene oxide.
  • suitable nonionic surfactants are selected from ethoxylated or propoxylated sorbitan esters.
  • amine oxides or alkyl glycosides are also suitable.
  • anionic surfactants are C 8 -C 20 -alkyl sulfates, C 8 -C 20 -alkyl sulfonates and C 8 -C 20 -alkyl ether sulfates having one to six ethylene oxide units per molecule.
  • formulation of the invention may contain in the range of from 3 to 20% by weight of surfactant.
  • Formulations of the invention may contain one or more enzymes.
  • enzymes are lipases, hydrolases, amylases, proteases, cellulases, esterases, pectinases, lactases and peroxidases.
  • Formulations according to the invention may contain, for example, up to 5% by weight of enzyme, preferably from 0.1 to 3% by weight, in each case based on the total solids content of the formulation according to the invention.
  • Formulations according to the invention may comprise, in addition to sodium citrate (C), one or more builders, in particular phosphate-free builders.
  • suitable builders are silicates, in particular sodium disilicate and sodium metasilicate, zeolites, phyllosilicates, especially those of the formula ⁇ -Na 2 Si 2 O 5 , ⁇ -Na 2 Si 2 O 5 , and ⁇ -Na 2 Si 2 O 5 , furthermore fatty acid sulfonates , ⁇ -hydroxypropionic acid, alkali malonates, fatty acid sulfonates, alkyl and alkenyl disuccinates, tartaric acid diacetate, tartaric acid monoacetate, oxidized starch, and polymeric builders, for example, polycarboxylates and polyaspartic acid.
  • builders of polycarboxylates are selected, for example, alkali metal salts of (meth) acrylic acid homo- or (meth) acrylic acid copolymers.
  • Suitable comonomers are monoethylenically unsaturated dicarboxylic acids such as maleic acid, fumaric acid, maleic anhydride, itaconic acid and citraconic acid.
  • a suitable polymer is in particular polyacrylic acid, which preferably has an average molecular weight M w in the range from 2000 to 40,000 g / mol, preferably 2,000 to 10,000 g / mol, in particular 3,000 to 8,000 g / mol.
  • copolymeric polycarboxylates in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid and / or fumaric acid.
  • copolymers of at least one monomer selected from the group consisting of monoethylenically unsaturated C 3 -C 10 -mono- or C 4 -C 10 -dicarboxylic acids or their anhydrides such as maleic acid, maleic anhydride, acrylic acid, methacrylic acid, fumaric acid, itaconic acid and citraconic acid with at least one hydrophilic or hydrophobically modified monomers are used as listed below.
  • Suitable hydrophobic monomers are, for example, isobutene, diisobutene, butene, pentene, hexene and styrene, olefins having 10 or more carbon atoms or mixtures thereof, for example 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene, 1-docoses, 1-tetracoses and 1-hexacoses, C 22 - ⁇ -olefin, a mixture of C 20 -C 24 - ⁇ -olefins and polyisobutene with an average of 12 to 100 carbon atoms per molecule.
  • Suitable hydrophilic monomers are monomers having sulfonate or phosphonate groups, as well as nonionic monomers having hydroxy function or alkylene oxide groups. Examples which may be mentioned are: allyl alcohol, isoprenol, methoxypolyethylene glycol (meth) acrylate, methoxypolypropylene glycol (meth) acrylate, methoxypolybutylene glycol (meth) acrylate, methoxypoly (propylene oxide-co-ethylene oxide) (meth) acrylate, ethoxypolyethylene glycol (meth) acrylate, ethoxypolypropylene glycol (meth) acrylate , Ethoxypolybutylene glycol (meth) acrylate and ethoxypoly (propylene oxide-co-ethylene oxide) (meth) acrylate.
  • Polyalkylene glycols may contain 3 to 50, in particular 5 to 40 and especially 10 to 30 alkylene oxide units per molecule.
  • Particularly preferred sulfonic acid-containing monomers are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methacrylamido-2-methylpropanesulfonic acid, 3-methacrylamido-2 hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 2-sulfoethyl methacrylate, 3-sulfopropyl methacrylate , Sulfomethacrylamide, sulfomethylmethacrylamide and salt
  • Particularly preferred phosphonate group-containing monomers are the vinylphosphonic acid and its salts.
  • amphoteric polymers can also be used as builders.
  • Formulations according to the invention may contain, for example, in the range from 10 to 50% by weight, preferably up to 20% by weight, of builder.
  • formulations according to the invention may contain one or more co-builders.
  • co-builders are phosphonates, for example hydroxyalkane phosphonates and aminoalkane phosphonates.
  • hydroxyalkane phosphonates 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance as a co-builder.
  • HEDP 1-hydroxyethane-1,1-diphosphonate
  • Preferred aminoalkanephosphonates are ethylenediaminetetra-methylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP) and their higher homologs. They are preferably used in the form of the neutrally reacting sodium salts, for example as the hexasodium salt of EDTMP or as the hepta- and octa-sodium salt of DTPMP.
  • Formulations of the invention may contain one or more alkali carriers.
  • Alkaline carriers for example, provide the pH of at least 9 when an alkaline pH is desired.
  • Suitable examples are alkali metal carbonates, alkali metal hydrogencarbonates, alkali metal hydroxides and alkali metal metasilicates.
  • Preferred alkali metal is in each case potassium, particularly preferred is sodium.
  • Formulations according to the invention may contain, in addition to bleaching agent (D), one or more chlorine-containing bleaching agents.
  • Suitable chlorine-containing bleaching agents are, for example, 1,3-dichloro-5,5-dimethylhydantoin, N-chlorosulfamide, chloramine T, chloramine B, sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, potassium hypochlorite, potassium dichloroisocyanurate and sodium dichloroisocyanurate.
  • formulations according to the invention may contain in the range of from 3 to 10% by weight of chlorine-containing bleach.
  • Formulations of the invention may contain one or more bleach catalysts.
  • Bleach catalysts can be selected from bleach-enhancing transition metal salts or transition metal complexes such as manganese, iron, cobalt, ruthenium or molybdenum-salene complexes or carbonyl complexes.
  • Manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands and cobalt, iron, copper and ruthenium-amine complexes can also be used as bleach catalysts.
  • Formulations according to the invention may contain one or more bleach activators, for example N-methylmorpholinium acetonitrile salts ("MMA salts”), trimethylammonium acetonitrile salts, N-acylimides such as N-nonanoylsuccinimide, 1,5-diacetyl-2,2-dioxo-hexahydroxy 1,3,5-triazine (“DADHT”) or nitrile quats (trimethylammonium acetonitrile salts).
  • MMA salts N-methylmorpholinium acetonitrile salts
  • DADHT 1,5-diacetyl-2,2-dioxo-hexahydroxy 1,3,5-triazine
  • nitrile quats trimethylammonium acetonitrile salts
  • TAED tetraacetylethylenediamine
  • TAED tetraacetylhexylenediamine
  • Formulations of the invention may contain one or more corrosion inhibitors.
  • corrosion inhibitors such compounds that inhibit the corrosion of metal.
  • suitable corrosion inhibitors are triazoles, in particular benzotriazoles, bisbenzotriazoles, aminotriazoles, alkylaminotriazoles, furthermore phenol derivatives such as, for example, hydroquinone, catechol, hydroxyhydroquinone, gallic acid, phloroglucinol or pyrogallol.
  • formulations according to the invention contain a total of in the range of 0.1 to 1.5 wt .-% corrosion inhibitor.
  • Formulations of the invention may contain one or more builders, for example, sodium sulfate.
  • Formulations of the invention may contain one or more defoamers selected, for example, from silicone oils and paraffin oils.
  • formulations according to the invention contain in total in the range from 0.05 to 0.5% by weight defoamer.
  • Formulations according to the invention may contain phosphonic acid or one or more phosphonic acid derivatives, for example hydroxyethane-1,1-diphosphonic acid.
  • Another object of the present invention is the use of formulations according to the invention for the automatic cleaning of dishes and kitchen utensils.
  • kitchen utensils in the context of the present invention, for example, pots, pans, casseroles to call, and metal objects such as, for example, skimmers, roasters and garlic presses.
  • a surface of glass is to be understood as meaning that the object in question has at least one piece of glass which comes into contact with the ambient air and can be contaminated when the object is used.
  • the objects in question may be those which are essentially glassware such as drinking glasses or glass bowls. But it can also be, for example, cover that have individual components of a different material, such as pot lid with edging and metal handle.
  • Glass surface may be decorated, for example colored or printed, or not decorated.
  • glass includes any glass, for example lead glass and in particular soda lime glass, crystal glass and borosilicate glasses.
  • Machine cleaning is preferably dishwashing with a dishwasher (English: “automatic dishwashing”).
  • At least one formulation according to the invention for automated cleaning of drinking glasses, glass vases and glass jars is used for cooking.
  • water having a hardness in the range from 1 to 30 ° dH, preferably from 2 to 25 ° dH, is used for cleaning, German hardness being taken to mean in particular the calcium hardness.
  • rinsing water with a hardness in the range of 1 to 30 ° dH preferably 2 to 25 ° dH can be used.
  • machine-cleaning formulations according to the invention are used, even with repeated mechanical cleaning of objects which have at least one surface made of glass, there is very little tendency for glass corrosion, even if objects comprising at least one surface made of glass are used have, along with heavily soiled cutlery or dishes cleans. In addition, it is much less harmful to use the formulation of the present invention to clean glass together with metal objects, such as pots, pans or garlic presses.
  • formulations according to the invention have a very good bleaching action when used for rinsing dishes and kitchen utensils and glass surfaces.
  • Compound (A), modified polyalkyleneimine (B) and bleaching agent (D) are defined above.
  • one or more surfactants for formulation according to the invention, for example with one or more surfactants, one or more enzymes, one or more builders, one or more builders a plurality of co-builders, in particular phosphorus-free builders, one or more alkali carriers, one or more bleaches, one or more bleach catalysts, one or more bleach activators, one or more bleach stabilizers, one or more defoamers, one or more corrosion inhibitors, one or more builders Buffer or dye.
  • one or more surfactants for
  • the water is completely or partially removed, for example, to a residual moisture in the range from 0.1 to 10% by weight of the formulation according to the invention by evaporation, in particular by spray drying, spray granulation or compaction ,
  • the water is removed, in whole or in part, at a pressure in the range of 0.3 to 2 bar.
  • the water is removed, in whole or in part, at temperatures in the range of 60 to 220 ° C.
  • the cleaning formulations according to the invention can be provided in liquid or solid form, single- or multiphase, as tablets or in the form of other dosage units, packaged or unpackaged.
  • the water content of liquid formulations can vary from 35 to 90% water.
  • the invention can be tested as follows.
  • Basic mixtures can be prepared from the starting materials according to Table 1. The starting materials are mixed dry.
  • Table 1 Basic mixtures for experiments with formulations according to the invention and comparative formulations Base 1
  • Base 2 Base 3 protease 2.5 2.5 2.5 amylase 1 1 1 nC 18 H 37 (OCH 2 CH 2 ) 9 OH 5 5
  • 10 10
  • Sodium percarbonate (D.1) 10.5 10.5 10.5 TAED 4 4 4 Na 2 Si 2 O 5 2 2 2 Na 2 CO 3 19.5 19.5 19.5 Sodium citrate dihydrate 5 22.5 30 All information in g.
  • the glasses are arranged in the upper dish rack of the dishwasher.
  • the dishwashing agent used is in each case 25 g of formulation according to the invention or 25 g of comparative formulation. Rinse at a rinse temperature of 55 ° C. The water hardness is in each case in the range of zero to 2 ° dH.
  • the weight of the glasses is determined before the beginning of the first rinse cycle and after drying after the last rinse cycle.
  • the weight loss is the difference between the two values.
  • the specimens are rinsed in a domestic dishwasher (Bosch SGS5602) with 1 g of surfactant (nC 18 H 37 (OCH 2 CH 2 ) 10 OH) and 20 g of citric acid to remove any impurities.
  • the test pieces are dried, their weight determined and fixed on the grid floor insert.
  • the dry test specimens are weighed. This is followed by the visual assessment of the test specimens. Here, the surface of the test specimens is evaluated for line corrosion (scorching) and haze corrosion (areal haze).
  • the glasses were placed in the upper dish rack of the dishwasher.
  • the dishwashing agent used was in each case 25 g of formulation according to the invention or 25 g of comparison formulation according to Table 3, where Table 3 shows the active components (A.1), base mixture, silicate (C.1 or C.2) and compound (D) or ( E) and (B) of inventive formulation individually specified.
  • Rinsing was carried out at a rinse temperature of 55 ° C.
  • the water hardness was in each case in the range of zero to 2 ° dH.
  • the evaluation was carried out gravimetrically and visually after 100 rinsing cycles.
  • the weight of the glasses was determined before the beginning of the first rinse cycle and after drying after the last rinse cycle.
  • the weight loss is the difference between the two values.
  • the specimens were rinsed in a domestic dishwasher (Bosch SGS5602) with 1 g of surfactant (nC 18 F 37 (OCH 2 CH 2 ) 10 OH) and 20 g of citric acid to remove any impurities.
  • the test pieces were dried, their weight determined and fixed on the grid floor insert.
  • the dry specimens were weighed. This was followed by the visual assessment of the test specimens. The surface of the test specimens was evaluated for line corrosion (glass scoring) and haze corrosion (areal haze).
  • Interim scores (e.g., L3-4) were also allowed on the match.
  • formulations according to the invention were also always superior to the corresponding comparative formulations in terms of the inhibition of glass corrosion.
  • Table 3 Results of tests with dishwasher (endurance runner) Example no.
  • Base mixture [g] (A.1) [g] (B) [mg] Weight loss champagne glass [mg] Weight loss shot glass [mg] Visual rating champagne glass Visual rating shot glass V-1
  • Base 2:17 3 60 (B.1.1.1) 17 9 L4, T4-5 L4, T5 2
  • Base 2:17 3 30 (B.1.1.1) 19 11 L3-4, T4-5 L4, T5 V-3
  • Base 2:17 3 30 (B.1.1.3) 67 36 L2, T2 L1-2, T2-3 V-4

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Description

Die vorliegende Erfindung betrifft Formulierungen, enthaltend

  1. (A) mindestens ein Aminocarboxylat, gewählt aus Methylglycindiacetat (MGDA), Iminodibernsteinsäure (IDS) und Glutaminsäurediacetat (GLDA) sowie deren Salzen, und
  2. (B) mindestens ein alkoxyliertes Alkylenimin-Polymer mit einem mittleren Molekulargewicht Mw im Bereich von 500 bis unter 800 g/mol, das eine positive Ladungsdichte von mindestens 5 meq/g aufweist und das im Bereich von 2 bis maximal 80 Gew.-% Alkylenoxid-Seitenketten aufweist, bezogen auf gesamtes alkoxyliertes Alkylenimin-Polymer, wobei alkoxyliertes Alkylenimin-Polymer (B) auf Polyethylenimin mit einem mittleren Molekulargewicht Mw im Bereich von 400 bis 500 g/mol basiert, ermittelt durch Lichtstreuung.
The present invention relates to formulations containing
  1. (A) at least one aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) and glutamic acid diacetate (GLDA) and their salts, and
  2. (B) at least one alkoxylated alkyleneimine polymer having an average molecular weight M w in the range of 500 to below 800 g / mol, which has a positive charge density of at least 5 meq / g and which is in the range from 2 to a maximum of 80 wt .-% Alkylene oxide side chains, based on total alkoxylated alkyleneimine polymer, wherein alkoxylated alkyleneimine polymer (B) based on polyethyleneimine having an average molecular weight M w in the range of 400 to 500 g / mol, determined by light scattering.

Weiterhin betrifft die vorliegende Erfindung ein Verfahren zur Herstellung von erfindungsgemäßen Formulierungen und ihre Verwendung als oder zur Herstellung von Geschirrspülmitteln, insbesondere von Geschirrspülmitteln für das maschinelle Geschirrspülen.Furthermore, the present invention relates to a process for the preparation of formulations according to the invention and their use as or for the production of dishwashing agents, in particular dishwasher detergents for automatic dishwashing.

Geschirrspülmittel haben vielerlei Anforderungen zu erfüllen. So haben sie das Geschirr gründlich zu reinigen, sie sollen im Abwasser keine schädlichen oder potenziell schädlichen Substanzen aufweisen, sie sollen das Ablaufen und Trocknen des Wassers vom Geschirr gestatten, und sie sollen beim Betrieb der Spülmaschine nicht zu Problemen führen. Schließlich sollen sie nicht zu ästhetisch unerwünschten Folgen am zu reinigenden Gut führen. Besonders ist in diesem Zusammenhang die Glaskorrosion zu nennen.Dishwashing detergents have many requirements to fulfill. So they have to clean the dishes thoroughly, they should have no harmful or potentially harmful substances in the wastewater, they should allow the draining and drying of the water from the dishes, and they should not cause problems when operating the dishwasher. Finally, they should not lead to aesthetically undesirable consequences on the good to be cleaned. Especially in this context is the glass corrosion.

Glaskorrosion kommt nicht nur durch mechanische Effekte zustande, beispielsweise durch Aneinanderreiben von Gläsern oder mechanischen Kontakt der Gläser mit Teilen der Spülmaschine, sondern wird hauptsächlich durch chemische Einflüsse gefördert. Beispielsweise können bestimmte Ionen durch wiederholtes maschinelles Reinigen aus dem Glas gelöst werden, was die optischen und somit die ästhetischen Eigenschaften nachteilig verändert.Glass corrosion is caused not only by mechanical effects, for example by rubbing glasses or mechanical contact of the glasses with parts of the dishwasher, but is mainly promoted by chemical influences. For example, certain ions can be released from the glass by repeated mechanical cleaning, adversely altering the optical and thus the aesthetic properties.

Bei der Glaskorrosion beobachtet man mehrere Effekte. Zum einen kann man die Bildung von mikroskopisch feinen Rissen beobachten, die sich in Form von Linien bemerkbar machen. Zum anderen kann man in vielen Fällen eine generelle Eintrübung beobachten, beispielsweise eine Aufrauhung, die das betreffende Glas unästhetisch aussehen lassen. Derartige Effekte werden insgesamt auch unterteilt in irisierende Verfärbung, Riefenbildung sowie flächen- und ringförmige Trübungen.Glass corrosion has several effects. On the one hand, one can observe the formation of microscopically fine cracks, which are noticeable in the form of lines. On the other hand, one can often observe a general cloudiness, for example a roughening, which makes the glass in question look unaesthetic. Overall, such effects are also subdivided into iridescent discoloration, scoring and surface and annular opacities.

WO 2006/108857 offenbart alkoxylierte Polyethylenimine als Zusätze zu Waschmitteln. Beispielhaft werden Waschmittel offenbart, die Zeolithe oder Polyaminocarboxylate wie EDTA oder Triethylendiaminpentaacetat als Komplexbildner enthalten. WO 2006/108857 discloses alkoxylated polyethyleneimines as additives to detergents. Detergents containing zeolites or polyaminocarboxylates such as EDTA or triethylenediamine pentaacetate as complexing agents are disclosed by way of example.

WO 01/96516 schlägt Formulierungen, die alkoxyliertes Polyethylenimin enthalten, zum Reinigen von harten Oberflächen vor. Zum Nachspülen wird gereinigtes Wasser verwendet. WO 01/96516 suggests formulations containing alkoxylated polyethylenimine for cleaning hard surfaces. For rinsing, purified water is used.

Aus WO 2010/020765 sind Geschirrspülmittel bekannt, die Polyethylenimin enthalten. Derartige Geschirrspülmittel können Phosphat enthalten oder Phosphat-frei sein. Es wird ihnen eine gute Inhibierung der Glaskorrosion zugeschrieben. Von Zink- und von Wismut-haltigen Geschirrspülmitteln wird abgeraten. Die Glaskorrosion, insbesondere die Linienkorrosion und die Trübung, wird aber in vielen Fällen noch nicht ausreichend verzögert oder verhindert.Out WO 2010/020765 Dishwashing agents are known which contain polyethyleneimine. Such dishwashing agents may contain phosphate or be phosphate-free. It is attributed to them a good inhibition of glass corrosion. Zinc and bismuth-containing dishwashing detergents are not recommended. The glass corrosion, in particular the line corrosion and the turbidity, but is not sufficiently delayed or prevented in many cases.

Es bestand also die Aufgabe, Formulierungen bereit zu stellen, die als oder zur Herstellung von Geschirrspülmitteln geeignet sind und die die aus dem Stand der Technik bekannten Nachteile vermeiden und die Glaskorrosion inhibieren oder zumindest besonders gut verringern. Es bestand weiterhin die Aufgabe, ein Verfahren zur Herstellung von Formulierungen bereit zu stellen, die als oder zur Herstellung von Geschirrspülmitteln geeignet sind und die die aus dem Stand der Technik bekannten Nachteile vermeiden. Es bestand weiterhin die Aufgabe, Verwendungen von Formulierungen bereit zu stellen.It was therefore the object to provide formulations which are suitable as or for the production of dishwashing agents and which avoid the disadvantages known from the prior art and inhibit glass corrosion or at least reduce it particularly well. A further object was to provide a process for the preparation of formulations which are suitable as or for the production of dishwasher detergents and which avoid the disadvantages known from the prior art. It was also the task to provide uses of formulations.

Dementsprechend wurden die eingangs definierten Formulierungen gefunden, kurz auch erfindungsgemäße Formulierungen genannt.Accordingly, the formulations defined above were found, also called formulations according to the invention.

Erfindungsgemäße Formulierungen sind Schwermetall-frei. Darunter soll im Rahmen der vorliegenden zu verstehen sei, dass erfindungsgemäße Formulierungen frei sind von solchen Schwermetallverbindungen, die nicht als Bleichkatalysatoren wirken, insbesondere von Verbindungen des Eisens und des Wismut. Unter "frei von" soll im Zusammenhang mit Schwermetallverbindungen im Rahmen der vorliegenden Erfindung verstanden werden, dass der Gehalt an Schwermetallverbindungen, die nicht als Bleichkatalysatoren wirken, in Summe im Bereich von 0 bis 100 ppm liegt, bestimmt nach der Leach-Methode und bezogen auf den Feststoffgehalt. Vorzugsweise weist erfindungsgemäße Formulierung einen Schwermetallgehalt unter 0,05 ppm auf, bezogen auf den Feststoffgehalt der betreffenden Formulierung.Formulations of the invention are heavy metal-free. This is to be understood in the context of the present invention that formulations according to the invention are free of those heavy metal compounds which do not act as bleach catalysts, in particular of compounds of iron and bismuth. In the context of the present invention, "free from" is to be understood in connection with heavy metal compounds as meaning that the content of heavy metal compounds which do not act as bleach catalysts is in the range from 0 to 100 ppm, determined by the Leach method and based on the solids content. Preferably, the formulation according to the invention has a heavy metal content below 0.05 ppm, based on the solids content of the relevant formulation.

Als "Schwermetalle" gelten im Rahmen der vorliegenden Erfindung alle Metalle mit einer spezifischen Dichte von mindestens 6 g/cm3. Insbesondere gelten als Schwermetalle Edelmetalle sowie Zink, Wismut, Eisen, Kupfer, Blei, Zinn, Nickel, Cadmium und Chrom.In the context of the present invention, "heavy metals" are all metals having a specific density of at least 6 g / cm 3 . In particular, the heavy metals are precious metals and zinc, bismuth, iron, copper, lead, tin, nickel, cadmium and chromium.

Vorzugsweise enthält erfindungsgemäße Formulierung keine messbaren Anteile an Zink- und Wismutverbindungen, also beispielsweise weniger als 1 ppm.Preferably, formulation of the invention contains no measurable levels of zinc and bismuth compounds, that is, for example, less than 1 ppm.

Erfindungsgemäße Formulierungen enthalten

  1. (A) mindestens ein Aminocarboxylat, gewählt aus Methylglycindiacetat (MGDA), Iminodibernsteinsäure (IDS) und Glutaminsäurediacetat (GLDA) sowie deren Salzen, im Rahmen der vorliegenden Erfindung kurz auch Aminocarboxylat (A) oder auch Verbindung (A) genannt, sowie vorzugsweise deren Salzen.
Contain formulations according to the invention
  1. (A) at least one aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) and glutamic acid diacetate (GLDA) and salts thereof, in the context of the present invention also briefly aminocarboxylate (A) or compound (A) mentioned, and preferably their salts ,

Bevorzugt wählt man Verbindung (A) als freie Säure, besonders bevorzugt in partiell oder vollständig neutralisierter Form, also als Salz. Als Gegenionen kommen beispielsweise anorganische Kationen, beispielsweise Ammonium, Alkali oder Erdalkali in Frage, bevorzugt Mg2+, Ca2+, Na+, K+, oder organische Kationen, bevorzugt mit einem oder mehreren organischen Resten substituiertes Ammonium, insbesondere Triethanolammonium, N,N-Diethanolammonium, N-Mono-C1-C4-alkyldiethanolammonium, beispielsweise N-Methyl-diethanolammonium oder N-n-Butyldiethanolammonium, und N,N-Di-C1-C4-alkylethanolammonium.Preference is given to choosing compound (A) as the free acid, particularly preferably in partially or completely neutralized form, ie as salt. As counterions come, for example, inorganic Cations, for example ammonium, alkali or alkaline earth metal in question, preferably Mg 2+ , Ca 2+ , Na + , K + , or organic cations, preferably ammonium substituted with one or more organic radicals, in particular triethanolammonium, N, N-diethanolammonium, N Mono-C 1 -C 4 alkyldiethanolammonium, for example N-methyldiethanolammonium or Nn-butyldiethanolammonium, and N, N-di-C 1 -C 4 -alkylethanolammonium.

Ganz besonders bevorzugte Verbindungen (A) sind die Alkalimetallsalze, insbesondere die Natriumsalze von Methylglycindiacetat (MGDA), Iminodibernsteinsäure (IDS) und Glutaminsäurediacetat (GLDA).Very particularly preferred compounds (A) are the alkali metal salts, in particular the sodium salts of methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) and glutamic acid diacetate (GLDA).

Ganz besonders bevorzugt ist Methylglycindiacetat (MGDA), Iminodibernsteinsäure (IDS) bzw. Glutaminsäurediacetat (GLDA) vollständig neutralisiert.Very particular preference is given to fully neutralizing methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) or glutamic acid diacetate (GLDA).

Erfindungsgemäße Formulierungen enthalten weiterhin

  • (B) mindestens ein alkoxyliertes Alkylenimin-Polymer mit einem mittleren Molekulargewicht Mw im Bereich von 500 bis unter 800 g/mol, bevorzugt 550 bis 750 g/mol, das eine positive Ladungsdichte von mindestens 5 meq/g aufweist und das im Bereich von 2 bis maximal 80 Gew.-%, bevorzugt 5 bis 60 Gew.-% Alkylenoxid-Seitenketten aufweist, bezogen auf gesamtes alkoxyliertes Alkylenimin-Polymer, wobei alkoxyliertes Alkylenimin-Polymer (B) auf Polyethylenimin mit einem mittleren Molekulargewicht Mw im Bereich von 400 bis 500 g/mol basiert, ermittelt durch Lichtstreuung.
Formulations according to the invention also contain
  • (B) at least one alkoxylated alkyleneimine polymer having an average molecular weight M w in the range of 500 to less than 800 g / mol, preferably 550 to 750 g / mol, which has a positive charge density of at least 5 meq / g and that in the range of 2 to a maximum of 80 wt .-%, preferably 5 to 60 wt .-% alkylene oxide side chains, based on total alkoxylated alkyleneimine polymer, wherein alkoxylated alkyleneimine polymer (B) on polyethyleneimine having an average molecular weight M w in the range of 400th up to 500 g / mol, determined by light scattering.

Derartige modifizierte Alkylenimin-Polymere werden im Rahmen der vorliegenden Erfindung kurz auch modifiziertes Polyalkylenimin (B) genannt.Such modified alkyleneimine polymers are also briefly referred to as modified polyalkyleneimine (B) in the context of the present invention.

Unter Alkylenimin-Polymeren sind im Rahmen der vorliegenden Erfindung solche polymere Materialien zu verstehen, die durch Homo- oder Copolymerisation von einem bzw. mehreren cyclischen Iminen erhalten werden, oder durch Pfropfung eines (Co)polymers mit mindestens einem cyclischen Imin. Beispiele sind Polyalkylenpolyamine und mit Ethylenimin gepfropften Polyamidoamine.In the context of the present invention, alkyleneimine polymers are to be understood as meaning those polymeric materials which are obtained by homo- or copolymerization of one or more cyclic imines, or by grafting a (co) polymer with at least one cyclic imine. Examples are polyalkylenepolyamines and polyamidoamines grafted with ethyleneimine.

Unter Polyalkylenpolyaminen sollen im Rahmen der vorliegenden Erfindung vorzugsweise solche Polymere verstanden werden, die mindestens sechs Stickstoffatome und mindestens fünf C2-C10-Alkyleneinheiten, bevorzugt C2-C3-Alkylen-einheiten pro Molekül enthalten, zum Beispiel Pentaethylenhexamin, und insbesondere Polyethylenimine.For the purposes of the present invention, polyalkylenepolyamines are preferably understood as meaning those polymers which contain at least six nitrogen atoms and at least five C 2 -C 10 -alkylene units, preferably C 2 -C 3 -alkylene units per molecule, for example pentaethylenehexamine, and in particular polyethyleneimines ,

Alkylenimin-Polymer und insbesondere Polyethylenimin hat ein mittleres Molekulargewicht (Mw) im Bereich von 400 bis 500 g/mol, ermittelt durch Lichtstreuung.Alkyleneimine polymer and in particular polyethyleneimine has an average molecular weight (M w ) in the range of 400 to 500 g / mol, determined by light scattering.

Polyalkylenpolyamine können in teilweise quaternierter (alkylierter) Form als Alkylenimin-Polymer kovalent modifiziert werden. Geeignete Quaternierungsmittel (Alkylierungsmittel) sind zum Beispiel Alkylhalogenide, insbesondere C1-C10-Alkylchlorid wie Methylchlorid, Methylbromid, Methyliodid, Ethylchlorid, Ethylbromid, n-Butylchlorid, tert.-Butylchlorid, n-Hexylchlorid, weiterhin Epichlorhydrin, Dimethylsulfat, Diethylsulfat und Benzylchlorid. Falls quaternierte (alkylierte) Polyalkylenpolyamine als Alkylenimin-Polymer kovalent modifiziert werden, beträgt der Grad der Quaternierung (Alkylierung) bevorzugt 1 bis 25, besonders bevorzugt bis zu 20 mol-%, bezogen auf quaternierbare (alkylierbare) N-Atome in Alkylenimin-Polymer.Polyalkylenepolyamines can be covalently modified in partially quaternized (alkylated) form as the alkyleneimine polymer. Suitable quaternizing agents (alkylating agents) are, for example, alkyl halides, in particular C 1 -C 10 -alkyl chloride, such as methyl chloride, methyl bromide, Methyl iodide, ethyl chloride, ethyl bromide, n-butyl chloride, tert-butyl chloride, n-hexyl chloride, furthermore epichlorohydrin, dimethyl sulfate, diethyl sulfate and benzyl chloride. If quaternized (alkylated) polyalkylenepolyamines are covalently modified as alkyleneimine polymer, the degree of quaternization (alkylation) is preferably 1 to 25, more preferably up to 20 mol%, based on quaternizable (alkylatable) N atoms in alkyleneimine polymer.

Weiterhin sind mit Ethylenimin gepfropften Polyamidoamine als Alkylenimin-Polymere geeignet. Geeignete Polyamidoamine sind zum Beispiel durch Umsetzung von C4-C10-Dicarbonsäuren mit Polyalkylenpolyaminen erhältlich, die vorzugsweise 3 bis 10 basische Stickstoffatome im Molekül enthalten. Geeignete Dicarbonsäuren sind beispielsweise Bernsteinsäure, Maleinsäure, Adipinsäure, Glutarsäure, Korksäure, Sebacinsäure oder Terephthalsäure. Man kann auch Mischungen von vorstehend genannten Dicarbonsäuren einsetzen, zum Beispiel Mischungen von Adipinsäure und Glutarsäure oder Mischungen von Maleinsäure und Adipinsäure. Bevorzugt setzt man Adipinsäure zur Herstellung von Polyamidoaminen ein. Geeignete Polyalkylenpolyamine, die mit vorstehend genannten Dicarbonsäuren kondensiert werden, sind zum Beispiel Diethylentriamin, Triethylentetramin, Dipropylentriamin, Tripropylentetramin, Dihexamethylentriamin, Aminopropylethylendiamin und bis-Aminopropyl-ethylen-diamin. Vorstehend genannte Polyalkylenpolyamine können auch in Form von Mischungen bei der Herstellung von Polyamidoamin eingesetzt werden. Die Herstellung von Polyamidoamin erfolgt vorzugsweise in Substanz, kann jedoch auch gegebenenfalls in inerten Lösungsmitteln vorgenommen werden. Die Kondensation von Dicarbonsäure mit Polyalkylenpolyamin erfolgt bei höheren Temperaturen, zum Beispiel im Bereich von 120 bis 220 °C. Das während der Reaktion gebildete Wasser wird aus dem Reaktionsgemisch abdestilliert. Die Kondensation kann gegebenenfalls in Gegenwart von Lactonen oder Lactamen von Carbonsäuren mit 4 bis 8 Kohlenstoffatomen vorgenommen werden. Pro mol Dicarbonsäure verwendet man im Allgemeinen 0,8 bis 1,4 mol eines Polyalkylenpolyamins. So erhältliche Polyamidoamine weisen primäre und sekundäre NH-Gruppen auf und sind in Wasser löslich.Furthermore, polyamidoamines grafted with ethyleneimine are suitable as alkyleneimine polymers. Suitable polyamidoamines are obtainable, for example, by reacting C 4 -C 10 -dicarboxylic acids with polyalkylenepolyamines, which preferably contain 3 to 10 basic nitrogen atoms in the molecule. Examples of suitable dicarboxylic acids are succinic acid, maleic acid, adipic acid, glutaric acid, suberic acid, sebacic acid or terephthalic acid. It is also possible to use mixtures of the abovementioned dicarboxylic acids, for example mixtures of adipic acid and glutaric acid or mixtures of maleic acid and adipic acid. Adipic acid is preferably used for the preparation of polyamidoamines. Suitable polyalkylenepolyamines which are condensed with the above-mentioned dicarboxylic acids are, for example, diethylenetriamine, triethylenetetramine, dipropylenetriamine, tripropylenetetramine, dihexamethylenetriamine, aminopropylethylenediamine and bisaminopropylethylenediamine. The aforementioned polyalkylenepolyamines can also be used in the form of mixtures in the preparation of polyamidoamine. The preparation of polyamidoamine is preferably carried out in bulk, but may also be carried out in inert solvents, if appropriate. The condensation of dicarboxylic acid with polyalkylenepolyamine takes place at higher temperatures, for example in the range from 120 to 220.degree. The water formed during the reaction is distilled off from the reaction mixture. The condensation may optionally be carried out in the presence of lactones or lactams of carboxylic acids having 4 to 8 carbon atoms. In general, from 0.8 to 1.4 mol of a polyalkylenepolyamine are used per mole of dicarboxylic acid. Thus obtainable polyamidoamines have primary and secondary NH groups and are soluble in water.

Mit Ethylenimin gepfropfte Polyamidoamine sind dadurch herstellbar, dass man Ethylenimin in Gegenwart von Brönstedt-Säuren oder Lewis-Säuren, zum Beispiel Schwefelsäure, Phosphorsäure oder Bortrifluoridetherat, auf oben beschriebenes Polyamidoamin einwirken lässt. Dadurch wird Ethylenimin auf das betreffende Polyamidoamin aufgepfropft. Zum Beispiel kann man pro basischem Stickstoffatom im Polyamidoamin 1 bis 10 Ethylenimineinheiten aufpfropfen, d. h. auf 100 Gewichtsteile Polyamidoamin setzt man etwa 10 bis 500 Gewichtsteile Ethylenimin ein.Ethyleneimine-grafted polyamidoamines can be prepared by allowing ethyleneimine to act on polyamidoamine described above in the presence of Bronsted acids or Lewis acids, for example sulfuric acid, phosphoric acid or boron trifluoride etherate. As a result, ethyleneimine is grafted onto the relevant polyamidoamine. For example, per basic nitrogen atom in the polyamidoamine, one can graft 1 to 10 ethyleneimine units, i. H. to 100 parts by weight of polyamidoamine is used about 10 to 500 parts by weight of ethyleneimine.

Bevorzugte Alkylenimin-Polymer ist Polyethylenimin.Preferred alkyleneimine polymer is polyethyleneimine.

Alkylenimin-Polymer wird im Rahmen der vorliegenden Erfindung in kovalent modifizierter Form eingesetzt, und zwar so, dass es im Bereich von 2 bis 80 Gew.-%, bevorzugt 5 bis 60 Gew.-% Alkylenoxid-Seitenketten aufweist, bezogen auf gesamtes alkoxyliertes Alkylenimin-Polymer (B). Zum Alkoxylieren kann man Epoxide verwenden, beispielsweise Ethylenoxid, Propylenoxid, 1,2-Butylenoxid, 2,3-Butylenoxid, Styroloxid oder Epichlorhydrin. Bevorzugte Alkoxylierungsreagenzien sind Ethylenoxid und Propylenoxid sowie Mischungen von Ethylenoxid und Propylenoxid.Alkyleneimine polymer is used in the context of the present invention in covalently modified form, specifically in the range from 2 to 80% by weight, preferably from 5 to 60% by weight, of alkylene oxide side chains, based on the total alkoxylated alkyleneimine -Polymer (B). For the alkoxylation one can use epoxides, for example ethylene oxide, propylene oxide, 1,2-butylene oxide, 2,3-butylene oxide, styrene oxide or epichlorohydrin. Preferred alkoxylation reagents are ethylene oxide and propylene oxide and mixtures of ethylene oxide and propylene oxide.

In einer Ausführungsform sind in alkoxyliertem Alkylenimin-Polymer (B) im Bereich von 5 bis 60 mol-% der Stickstoff-Atome der primären und sekundären Aminogruppen des Alkylenimin-Polymers alkoxyliert.In one embodiment, alkoxylated alkyleneimine polymer (B) alkoxylates in the range of 5 to 60 mole percent of the nitrogen atoms of the primary and secondary amino groups of the alkyleneimine polymer.

In einer Ausführungsform der vorliegenden Erfindung wählt man modifiziertes Polyalkylenimin (B) aus Polyethyleniminen, die umgesetzt sind mit Ethylenoxid oder Propylenoxid.In one embodiment of the present invention, modified polyalkyleneimine (B) is selected from polyethyleneimines reacted with ethylene oxide or propylene oxide.

Modifiziertes Polyalkylenimin (B) kann als Gegenionen hochmolekulare oder niedermolekulare Anionen aufweisen, organisch oder bevorzugt anorganisch. Hochmolekulare Anionen im Rahmen der vorliegenden Erfindung haben ein mittleres Molekulargewicht von 200 g/mol oder mehr, beispielsweise bis zu 2500 g/mol, niedermolekulare Anionen haben ein Molekulargewicht von weniger als 200 g/mol, beispielsweise von 17 bis 150 g/mol. Beispiele für niedermolekulare organische Gegenionen sind Acetat, Propionat und Benzoat. Beispiele für niedermolekulare anorganische Gegenionen sind Sulfat, Chlorid, Bromid, Hydroxid, Carbonat, Methansulfonat und Hydrogencarbonat.Modified polyalkyleneimine (B) can have as counter ions high molecular weight or low molecular weight anions, organic or preferably inorganic. High molecular weight anions in the context of the present invention have an average molecular weight of 200 g / mol or more, for example up to 2500 g / mol, low molecular weight anions have a molecular weight of less than 200 g / mol, for example from 17 to 150 g / mol. Examples of low molecular weight organic counterions are acetate, propionate and benzoate. Examples of low molecular weight inorganic counterions are sulfate, chloride, bromide, hydroxide, carbonate, methanesulfonate and bicarbonate.

In einer Ausführungsform der vorliegenden Erfindung weist modifiziertes Polyalkylenimin (B) eine kationische Ladungsdichte von mindestens 5 meq/g bis maximal 25 meq/g (Milliäquivalente/g) auf, bevorzugt bis 22 meq/g, wobei sich die Angabe in g auf modifiziertes Polyalkylenimin (B) ohne Berücksichtigung der Gegenionen bezieht. Die kationische Ladungsdichte kann man beispielsweise durch Titration ermitteln, beispielsweise mit Polyvinylsulfatlösung.In one embodiment of the present invention, modified polyalkyleneimine (B) has a cationic charge density of at least 5 meq / g to a maximum of 25 meq / g (milliequivalents / g), preferably to 22 meq / g, with an indication in g of modified polyalkyleneimine (B) without taking into account the counterions. The cationic charge density can be determined, for example, by titration, for example with polyvinyl sulfate solution.

In einer Ausführungsform der vorliegenden Erfindung weist modifiziertes Polyalkylenimin (B) eine Molekulargewichtsverteilung Mw/Mn im Bereich von 1,1 bis 10 auf, bevorzugt 1,5 bis 5.In one embodiment of the present invention, modified polyalkyleneimine (B) has a molecular weight distribution M w / M n in the range of 1.1 to 10, preferably 1.5 to 5.

In einer Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen
insgesamt im Bereich von 1 bis 50 Gew.-% Aminocarboxylat (A), bevorzugt 10 bis 25 Gew.-%, insgesamt im Bereich von 0,001 bis 5 Gew.-% modifiziertes Polyalkylenimin (B), bevorzugt 0,02 bis 0,5 Gew.-%,
bezogen jeweils auf Feststoffgehalt der betreffenden Formulierung.
In one embodiment of the present invention formulations according to the invention contain
total in the range of 1 to 50% by weight of aminocarboxylate (A), preferably 10 to 25% by weight, in total in the range of 0.001 to 5% by weight of modified polyalkyleneimine (B), preferably 0.02 to 0.5 wt .-%,
in each case based on solids content of the relevant formulation.

In einer Variante der vorliegenden Erfindung enthält erfindungsgemäße Formulierung Verbindung (A) und modifiziertes Polyalkylenimin (B) in einem Gewichtsverhältnis im Bereich von 1000 zu 1 bis 25 zu 1.In a variant of the present invention, formulation according to the invention contains compound (A) and modified polyalkyleneimine (B) in a weight ratio in the range from 1000 to 1 to 25 to 1.

In einer bevorzugten Ausführungsform der vorliegenden Erfindung ist erfindungsgemäße Formulierung frei von Phosphaten und Polyphosphaten, wobei Hydrogenphosphate mit subsumiert sind, beispielsweise frei von Trinatriumphosphat, Pentanatriumtripolyphosphat und Hexanatriummetaphosphat. Unter "frei von" soll im Zusammenhang mit Phosphaten und Polyphosphaten im Rahmen der vorliegenden Erfindung verstanden werden, dass der Gehalt an Phosphat und Polyphosphat in Summe im Bereich von 10 ppm bis 0,2 Gew.-% liegt, bestimmt durch Gravimetrie.In a preferred embodiment of the present invention formulation according to the invention is free of phosphates and polyphosphates, wherein hydrogen phosphates are subsumed with, for example, free of trisodium phosphate, pentasodium tripolyphosphate and Hexasatriummetaphosphat. The term "free from" in connection with phosphates and polyphosphates in the context of the present invention should be understood to mean that the total content of phosphate and polyphosphate ranges from 10 ppm to 0.2% by weight, determined by gravimetry.

Erfindungsgemäße Formulierungen können weitere Komponenten enthalten, die beispielsweise für die Verwendung beim Spülen von Geschirr und/oder Küchenutensilien vorteilhaft sind.Formulations of the invention may contain other components which are advantageous, for example, for use in washing dishes and / or kitchen utensils.

In einer anderen Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen keine weiteren Komponenten, die beispielsweise für die Verwendung beim Spülen von Geschirr und/oder Küchenutensilien vorteilhaft sind, können aber leicht mit weiteren Komponenten formuliert werden und eignen sich daher als Ausgangsmaterial.In another embodiment of the present invention formulations according to the invention contain no further components, which are advantageous, for example, for use in dishwashing and / or kitchen utensils, but can easily be formulated with further components and are therefore suitable as starting material.

In einer Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen Natriumcitrat (C). Dabei umfasst der Begriff Natriumcitrat das Mono- und bevorzugt das Dinatriumsalz mit. Natriumcitrat kann als wasserfreies Salz oder als Hydrat, beispielsweise als Dihydrat eingesetzt werden.In one embodiment of the present invention formulations according to the invention contain sodium citrate (C). The term sodium citrate includes the mono- and preferably the disodium salt with. Sodium citrate can be used as anhydrous salt or as a hydrate, for example as a dihydrate.

In einer Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen

  • (D) mindestens eine Verbindung, gewählt aus Alkalimetallpercarbonat, Alkalimetallperborat und Alkalimetallpersulfat, im Rahmen der vorliegenden Erfindung auch "Bleichmittel (D)" genannt.
In one embodiment of the present invention formulations according to the invention contain
  • (D) at least one compound selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate, in the context of the present invention also called "bleaching agent (D)".

Bevorzugte Bleichmittel (D) sind gewählt aus Natriumperborat, wasserfrei oder beispielsweise als Monohydrat oder als Tetrahydrat oder so genanntes Dihydrat, Natriumpercarbonat, wasserfrei oder beispielsweise als Monohydrat, und Natriumpersulfat, wobei der Begriff "Persulfat" jeweils das Salz der Persäure H2SO5 sowie das Peroxodisulfat mit umfasst.Preferred bleaching agents (D) are selected from sodium perborate, anhydrous or for example as monohydrate or as tetrahydrate or so-called dihydrate, sodium percarbonate, anhydrous or, for example, as monohydrate, and sodium persulfate, where the term "persulfate" respectively the salt of peracid H 2 SO 5 and the peroxodisulfate includes.

Dabei kann es sich bei den Alkalimetallsalzen jeweils auch um Alkalimetallhydrogencarbonat, Alkalimetallhydrogenperborat und Alkalimetallhydrogenpersulfat handeln. Bevorzugt sind jedoch jeweils die Dialkalimetallsalze.The alkali metal salts may each also be alkali metal hydrogencarbonate, alkali metal hydrogen perborate and alkali metal hydrogen persulphate. However, preference is given in each case to the dialkali metal salts.

In einer Ausführungsform der vorliegenden Erfindung enthält erfindungsgemäße Formulierung null bis 50 Gew.-% Natriumcitrat (C), bevorzugt 1 bis 30 Gew.-%, besonders bevorzugt mindestens 5 Gew.-% Natriumcitrat (C), bestimmt als wasserfreies Natriumcitrat,
insgesamt null bis 15 Gew.-% Bleichmittel (D), bevorzugt mindestens 0,5 Gew.-% Bleichmittel (D), gewählt aus Alkalimetallpercarbonat, Alkalimetallperborat und Alkalimetallpersulfat. bezogen jeweils auf Feststoffgehalt der betreffenden Formulierung.
In one embodiment of the present invention formulation according to the invention contains zero to 50% by weight of sodium citrate (C), preferably 1 to 30% by weight, more preferably at least 5% by weight of sodium citrate (C), determined as anhydrous sodium citrate,
a total of zero to 15% by weight of bleaching agent (D), preferably at least 0.5% by weight of bleaching agent (D), selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate. in each case based on solids content of the relevant formulation.

In einer Ausführungsform der vorliegenden Erfindung ist erfindungsgemäße Formulierung bei Zimmertemperatur fest, beispielsweise ein Pulver oder eine Tablette. In einer anderen Ausführungsform der vorliegenden Erfindung ist erfindungsgemäße Formulierung bei Zimmertemperatur flüssig. In einer Ausführungsform der vorliegenden Erfindung ist erfindungsgemäße Formulierung ein Granulat, eine Flüssigzubereitung oder ein Gel.In one embodiment of the present invention, formulation according to the invention is solid at room temperature, for example a powder or a tablet. In another embodiment of the present invention, formulation of the invention is liquid at room temperature. In one embodiment of the present invention, the formulation according to the invention is a granulate, a liquid preparation or a gel.

In einer Ausführungsform der vorliegenden Erfindung enthält erfindungsgemäße Formulierung 0,1 bis 10 Gew.-% Wasser, bezogen auf die Summe aller Feststoffe der betreffenden Formulierung.In one embodiment of the present invention, the formulation according to the invention contains from 0.1 to 10% by weight of water, based on the sum of all solids of the relevant formulation.

In einer Ausführungsform der vorliegenden Erfindung kann erfindungsgemäße Formulierung weitere Inhaltsstoffe (E) aufweisen, beispielsweise ein oder mehrere Tenside, ein oder mehrere Enzyme, einen oder mehrere Builder, insbesondere Phosphor-freie Builder, einen oder mehrere Cobuilder, einen oder mehrere Alkaliträger, ein oder mehrere Bleichmittel, einen oder mehrere Bleichkatalysatoren, einen oder mehrere Bleichaktivatoren, einen oder mehrere Bleichmittelstabilisatoren, einen oder mehrere Entschäumer, einen oder mehrere Korrosionsinhibitoren, einen oder mehrere Gerüststoffe, Puffer, Farbstoffe, einen oder mehrere Duftstoffe, ein oder mehrere organische Lösungsmittel, ein oder mehrere Tablettierhilfsmittel, ein oder mehrere Disintegrationsmittel, einen oder mehrere Verdicker, oder einen oder mehrere Löslichkeitsvermittler.In one embodiment of the present invention, formulation according to the invention may comprise further ingredients (E), for example one or more surfactants, one or more enzymes, one or more builders, in particular phosphorus-free builders, one or more cobuilders, one or more alkali carriers, one or more a plurality of bleaching agents, one or more bleach catalysts, one or more bleach activators, one or more bleach stabilizers, one or more defoamers, one or more corrosion inhibitors, one or more builders, buffers, dyes, one or more perfumes, one or more organic solvents, one or more several tableting aids, one or more disintegrating agents, one or more thickeners, or one or more solubilizing agents.

Beispiele für Tenside sind insbesondere nicht-ionische Tenside sowie Mischungen von anionischen oder zwitterionischen Tensiden mit nicht-ionischen Tensiden. Bevorzugte nicht-ionische Tenside sind alkoxylierte Alkohole und alkoxylierte Fettalkohole, Di- und Multiblockcopolymerisate von Ethylenoxid und Propylenoxid und Umsetzungsprodukte von Sorbitan mit Ethylenoxid oder Propylenoxid, Alkylglycoside und sogenannte Aminoxide.Examples of surfactants are, in particular, nonionic surfactants and mixtures of anionic or zwitterionic surfactants with nonionic surfactants. Preferred nonionic surfactants are alkoxylated alcohols and alkoxylated fatty alcohols, di- and multiblock copolymers of ethylene oxide and propylene oxide and reaction products of sorbitan with ethylene oxide or propylene oxide, alkyl glycosides and so-called amine oxides.

Bevorzugte Beispiele für alkoxylierte Alkohole und alkoxylierte Fettalkohole sind beispielsweise Verbindungen der allgemeinen Formel (I)

Figure imgb0001
in der die Variablen wie folgt definiert sind:

R1
gleich oder verschieden und gewählt aus linearem C1-C10-Alkyl, bevorzugt jeweils gleich und Ethyl und besonders bevorzugt Methyl,
R2
gewählt aus C8-C22-Alkyl, beispielsweise n-C8H17, n-C10H21, n-C12H25, n-C14H29, n-C16H33 oder n-C18H37,
R3
gewählt aus C1-C10-Alkyl, Methyl, Ethyl, n-Propyl, iso-Propyl, n-Butyl, iso-Butyl, sec.-Butyl, tert.-Butyl, n-Pentyl, iso-Pentyl, sec.-Pentyl, neo-Pentyl, 1,2-Dimethylpropyl, iso-Amyl, n-Hexyl, iso-Hexyl, sec.-Hexyl, n-Heptyl, n-Octyl, 2-Ethylhexyl, n-Nonyl, n-Decyl oder iso-Decyl,
Preferred examples of alkoxylated alcohols and alkoxylated fatty alcohols are, for example, compounds of the general formula (I)
Figure imgb0001
where the variables are defined as follows:
R 1
identical or different and selected from linear C 1 -C 10 -alkyl, preferably in each case the same and ethyl and particularly preferably methyl,
R 2
selected from C 8 -C 22 -alkyl, for example nC 8 H 17 , nC 10 H 21 , nC 12 H 25 , nC 14 H 29 , nC 16 H 33 or nC 18 H 37 ,
R 3
selected from C 1 -C 10 -alkyl, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec. -Pentyl, neo-pentyl, 1,2-dimethylpropyl, iso-amyl, n-hexyl, iso -hexyl, sec-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl or isodecyl,

m und n liegen im Bereich von null bis 300, wobei die Summe von n und m mindestens eins beträgt. Bevorzugt ist m im Bereich von 1 bis 100 und n im Bereich von 0 bis 30.m and n are in the range of zero to 300, where the sum of n and m is at least one. Preferably, m is in the range of 1 to 100 and n is in the range of 0 to 30.

Dabei kann es sich bei Verbindungen der allgemeinen Formel (I) um Blockcopolymere oder statistische Copolymere handeln, bevorzugt sind Blockcopolymere.Compounds of the general formula (I) may be block copolymers or random copolymers, preference being given to block copolymers.

Andere bevorzugte Beispiele für alkoxylierte Alkohole und alkoxylierte Fettalkohole sind beispielsweise Verbindungen der allgemeinen Formel (II)

Figure imgb0002
in der die Variablen wie folgt definiert sind:

R1
gleich oder verschieden und gewählt aus linearem C1-C10-Alkyl, bevorzugt jeweils gleich und Ethyl und besonders bevorzugt Methyl,
R4
gewählt aus C6-C20-Alkyl, insbesondere n-C8H17, n-C10H21, n-C12H25, n-C14H29, n-C16H33, n-C18H37.
a
eine Zahl im Bereich von 1 bis 6,
b
ist eine Zahl im Bereich von 4 bis 20,
d
ist eine Zahl im Bereich von 4 bis 25.
Other preferred examples of alkoxylated alcohols and alkoxylated fatty alcohols are, for example, compounds of the general formula (II)
Figure imgb0002
where the variables are defined as follows:
R 1
identical or different and selected from linear C 1 -C 10 -alkyl, preferably in each case the same and ethyl and particularly preferably methyl,
R 4
selected from C 6 -C 20 -alkyl, in particular nC 8 H 17 , nC 10 H 21 , nC 12 H 25 , nC 14 H 29 , nC 16 H 33 , nC 18 H 37 .
a
a number in the range of 1 to 6,
b
is a number in the range of 4 to 20,
d
is a number in the range of 4 to 25.

Dabei kann es sich bei Verbindungen der allgemeinen Formel (II) um Blockcopolymere oder statistische Copolymere handeln, bevorzugt sind Blockcopolymere.In the case of compounds of the general formula (II), these may be block copolymers or random copolymers, preference being given to block copolymers.

Weitere geeignete nicht-ionische Tenside sind gewählt aus Di- und Multiblockcopolymeren, aufgebaut aus Ethylenoxid und Propylenoxid. Weitere geeignete nicht-ionische Tenside sind gewählt aus ethoxylierten oder propoxylierten Sorbitanestern. Ebenfalls eignen sich Aminoxide oder Alkylglycoside. Eine Übersicht geeigneter weiterer nichtionischer Tenside findet man in EP-A 0 851 023 und in DE-A 198 19 187 .Other suitable nonionic surfactants are selected from di- and multiblock copolymers, composed of ethylene oxide and propylene oxide. Other suitable nonionic surfactants are selected from ethoxylated or propoxylated sorbitan esters. Also suitable are amine oxides or alkyl glycosides. An overview of suitable further nonionic surfactants can be found in EP-A 0 851 023 and in DE-A 198 19 187 ,

Es können auch Gemische mehrerer verschiedener nicht-ionischer Tenside enthalten sein.It may also contain mixtures of several different nonionic surfactants.

Beispiele für anionische Tenside sind C8-C20-Alkylsulfate, C8-C20-Alkylsulfonate und C8-C20-Alkylethersulfate mit einer bis 6 Ethylenoxideinheiten pro Molekül.Examples of anionic surfactants are C 8 -C 20 -alkyl sulfates, C 8 -C 20 -alkyl sulfonates and C 8 -C 20 -alkyl ether sulfates having one to six ethylene oxide units per molecule.

In einer Ausführungsform der vorliegenden Erfindung kann erfindungsgemäße Formulierung im Bereich von 3 bis 20 Gew.-% Tensid enthalten.In one embodiment of the present invention, formulation of the invention may contain in the range of from 3 to 20% by weight of surfactant.

Erfindungsgemäße Formulierungen können ein oder mehrere Enzyme enthalten. Beispiele für Enzyme sind Lipasen, Hydrolasen, Amylasen, Proteasen, Cellulasen, Esterasen, Pectinasen, Lactasen und Peroxidasen.Formulations of the invention may contain one or more enzymes. Examples of enzymes are lipases, hydrolases, amylases, proteases, cellulases, esterases, pectinases, lactases and peroxidases.

Erfindungsgemäße Formulierungen können beispielsweise bis 5 Gew.-% Enzym enthalten, bevorzugt sind 0,1 bis 3 Gew.-%, jeweils bezogen auf gesamten Feststoffgehalt der erfindungsgemäßen Formulierung.Formulations according to the invention may contain, for example, up to 5% by weight of enzyme, preferably from 0.1 to 3% by weight, in each case based on the total solids content of the formulation according to the invention.

Erfindungsgemäße Formulierungen können über Natriumcitrat (C) hinaus einen oder mehrere Builder, insbesondere Phosphat-freie Builder, enthalten. Beispiele für geeignete Builder sind Silikate, insbesondere Natriumdisilikat und Natriummetasilikat, Zeolithe, Schichtsilikate, insbesondere solche der Formel α-Na2Si2O5, β-Na2Si2O5, und δ-Na2Si2O5, weiterhin Fettsäuresulfonate, α-Hydroxypropionsäure, Alkalimalonate, Fettsäuresulfonate, Alkyl- und Alkenyldisuccinate, Weinsäurediacetat, Weinsäuremonoacetat, oxidierte Stärke, und polymere Builder, beispielsweise Polycarboxylate und Polyasparaginsäure.Formulations according to the invention may comprise, in addition to sodium citrate (C), one or more builders, in particular phosphate-free builders. Examples of suitable builders are silicates, in particular sodium disilicate and sodium metasilicate, zeolites, phyllosilicates, especially those of the formula α-Na 2 Si 2 O 5 , β-Na 2 Si 2 O 5 , and δ-Na 2 Si 2 O 5 , furthermore fatty acid sulfonates , α-hydroxypropionic acid, alkali malonates, fatty acid sulfonates, alkyl and alkenyl disuccinates, tartaric acid diacetate, tartaric acid monoacetate, oxidized starch, and polymeric builders, for example, polycarboxylates and polyaspartic acid.

In einer Ausführungsform der vorliegenden Erfindung wählt man Builder aus Polycarboxylaten, beispielsweise Alkalimetallsalze von (Meth)acrylsäurehomo- oder (Meth)acrylsäurecopolymeren.In one embodiment of the present invention, builders of polycarboxylates are selected, for example, alkali metal salts of (meth) acrylic acid homo- or (meth) acrylic acid copolymers.

Als Comonomere eignen sich monoethylenisch ungesättigte Dicarbonsäuren wie Maleinsäure, Fumarsäure, Maleinsäureanhydrid, Itaconsäure und Citraconsäure. Ein geeignetes Polymer ist insbesondere Polyacrylsäure, die bevorzugt ein mittleres Molekulargewicht Mw im Bereich von 2000 bis 40.000 g/mol aufweist, bevorzugt 2.000 bis 10.000 g/mol, insbesondere 3.000 bis 8.000 g/mol. Geeignet sind weiterhin copolymere Polycarboxylate, insbesondere solche der Acrylsäure mit Methacrylsäure und der Acrylsäure oder Methacrylsäure mit Maleinsäure und/oder Fumarsäure.Suitable comonomers are monoethylenically unsaturated dicarboxylic acids such as maleic acid, fumaric acid, maleic anhydride, itaconic acid and citraconic acid. A suitable polymer is in particular polyacrylic acid, which preferably has an average molecular weight M w in the range from 2000 to 40,000 g / mol, preferably 2,000 to 10,000 g / mol, in particular 3,000 to 8,000 g / mol. Also suitable are copolymeric polycarboxylates, in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid and / or fumaric acid.

Es können auch Copolymere aus mindestens einem Monomeren aus der Gruppe bestehend aus monoethylenisch ungesättigten C3-C10-Mono- bzw. C4-C10-Dicarbonsäuren oder deren Anhydriden, wie Maleinsäure, Maleinsäureanhydrid, Acrylsäure, Methacrylsäure, Fumarsäure, Itaconsäure und Citraconsäure mit mindestens einem hydrophil oder hydrophob modifizierten Monomeren wie nachfolgend aufgezählt eingesetzt werden.It is also possible to use copolymers of at least one monomer selected from the group consisting of monoethylenically unsaturated C 3 -C 10 -mono- or C 4 -C 10 -dicarboxylic acids or their anhydrides, such as maleic acid, maleic anhydride, acrylic acid, methacrylic acid, fumaric acid, itaconic acid and citraconic acid with at least one hydrophilic or hydrophobically modified monomers are used as listed below.

Geeignete hydrophobe Monomere sind beispielsweise Isobuten, Diisobuten, Buten, Penten, Hexen und Styrol, Olefine mit 10 oder mehr Kohlenstoffatomen oder deren Gemischen wie beispielsweise 1-Decen, 1-Dodecen, 1-Tetradecen, 1-Hexadecen, 1-Octadecen, 1-Eicosen, 1-Docosen, 1-Tetracosen und 1-Hexacosen, C22-α-Olefin, ein Gemisch aus C20-C24-α-Olefinen und Polyisobuten mit im Mittel 12 bis 100 C-Atomen pro Molekül.Suitable hydrophobic monomers are, for example, isobutene, diisobutene, butene, pentene, hexene and styrene, olefins having 10 or more carbon atoms or mixtures thereof, for example 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene, 1-docoses, 1-tetracoses and 1-hexacoses, C 22 -α-olefin, a mixture of C 20 -C 24 -α-olefins and polyisobutene with an average of 12 to 100 carbon atoms per molecule.

Geeignete hydrophile Monomere sind Monomere mit Sulfonat- oder Phosphonatgruppen, sowie nichtionische Monomere mit Hydroxyfunktion oder Alkylenoxidguppen. Beispielsweise seien genannt: Allylalkohol, Isoprenol, Methoxypolyethylenglykol(meth)acrylat, Methoxypolypropylenglykol(meth)acrylat, Methoxypolybutylenglykol(meth)acrylat, Methoxypoly(propylenoxid-co-ethylenoxid)(meth)acrylat, Ethoxypolyethylenglykol(meth)acrylat, Ethoxypolypropylenglykol(meth)acrylat, Ethoxypolybutylenglykol(meth)acrylat und Ethoxypoly(propylenoxid-co-ethylenoxid)(meth)acrylat. Polyalkylenglykole können dabei 3 bis 50, insbesondere 5 bis 40 und vor allem 10 bis 30 Alkylenoxideinheiten pro Molekül enthalten.Suitable hydrophilic monomers are monomers having sulfonate or phosphonate groups, as well as nonionic monomers having hydroxy function or alkylene oxide groups. Examples which may be mentioned are: allyl alcohol, isoprenol, methoxypolyethylene glycol (meth) acrylate, methoxypolypropylene glycol (meth) acrylate, methoxypolybutylene glycol (meth) acrylate, methoxypoly (propylene oxide-co-ethylene oxide) (meth) acrylate, ethoxypolyethylene glycol (meth) acrylate, ethoxypolypropylene glycol (meth) acrylate , Ethoxypolybutylene glycol (meth) acrylate and ethoxypoly (propylene oxide-co-ethylene oxide) (meth) acrylate. Polyalkylene glycols may contain 3 to 50, in particular 5 to 40 and especially 10 to 30 alkylene oxide units per molecule.

Besonders bevorzugte Sulfonsäuregruppen-haltige Monomere sind dabei 1-Acryl-amido-1-propansulfonsäure, 2-Acrylamido-2-propansulfonsäure, 2-Acrylamido-2-methylpropansulfonsäure, 2-Methacrylamido-2-methylpropansulfonsäure, 3-Meth-acrylamido-2-hydroxypropansulfonsäure, Allylsulfonsäure, Methallylsulfonsäure, Allyloxybenzolsulfonsäure, Methallyloxybenzolsulfonsäure, 2-Hydroxy-3-(2-propenyloxy)propansulfonsäure, 2-Methyl-2-propen-1-sulfonsäure, Styrolsulfonsäure, Vinylsulfonsäure, 3-Sulfopropylacrylat, 2-Sulfoethylmethacrylat, 3-Sulfopropylmethacrylat, Sulfomethacrylamid, Sulfomethylmethacrylamid sowie Salze der genannten Säuren, wie deren Natrium-, Kalium oder Ammoniumsalze.Particularly preferred sulfonic acid-containing monomers are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-methacrylamido-2-methylpropanesulfonic acid, 3-methacrylamido-2 hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 2-sulfoethyl methacrylate, 3-sulfopropyl methacrylate , Sulfomethacrylamide, sulfomethylmethacrylamide and salts of said acids, such as their sodium, potassium or ammonium salts.

Besonders bevorzugte Phosphonatgruppen-haltige Monomere sind die Vinylphosphonsäure und ihre Salze.Particularly preferred phosphonate group-containing monomers are the vinylphosphonic acid and its salts.

Darüber hinaus können auch amphotere Polymere als Builder eingesetzt werden. Erfindungsgemäße Formulierungen können beispielsweise im Bereich von insgesamt 10 bis 50 Gew.-%, bevorzugt bis 20 Gew.-% Builder enthalten.In addition, amphoteric polymers can also be used as builders. Formulations according to the invention may contain, for example, in the range from 10 to 50% by weight, preferably up to 20% by weight, of builder.

In einer Ausführungsform der vorliegenden Erfindung können erfindungsgemäße Formulierungen einen oder mehrere Cobuilder enthalten.In one embodiment of the present invention, formulations according to the invention may contain one or more co-builders.

Beispiele für Cobuilder sind Phosphonate, beispielsweise Hydroxyalkanphosphonate und Aminoalkanphosphonate. Unter den Hydroxyalkanphosphonaten ist das 1-Hydroxyethan-1,1-diphosphonat (HEDP) von besonderer Bedeutung als Cobuilder. Es wird vorzugsweise als Natriumsalz eingesetzt, wobei das Dinatriumsalz neutral und das Tetranatriumsalz alkalisch (pH-Wert 9) reagiert. Als Aminoalkanphosphonate kommen vorzugsweise Ethylendiamintetra-methylenphosphonat (EDTMP), Diethylentriaminpentamethylenphosphonat (DTPMP) sowie deren höhere Homologe in Frage. Sie werden vorzugsweise in Form der neutral reagierenden Natriumsalze, z.B. als Hexanatriumsalz der EDTMP bzw. als Hepta- und Octa-Natriumsalz des DTPMP, eingesetzt.Examples of co-builders are phosphonates, for example hydroxyalkane phosphonates and aminoalkane phosphonates. Among the hydroxyalkane phosphonates, 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance as a co-builder. It is preferably used as the sodium salt, the disodium salt being neutral and the tetrasodium salt being alkaline (pH 9). Preferred aminoalkanephosphonates are ethylenediaminetetra-methylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP) and their higher homologs. They are preferably used in the form of the neutrally reacting sodium salts, for example as the hexasodium salt of EDTMP or as the hepta- and octa-sodium salt of DTPMP.

Erfindungsgemäße Formulierungen können einen oder mehrere Alkaliträger enthalten. Alkaliträger sorgen beispielsweise für den pH-Wert von mindestens 9, wenn ein alkalischer pH-Wert gewünscht wird. Geeignet sind beispielsweise Alkalimetallcarbonate, Alkalimetallhydrogencarbonate, Alkalimetallhydroxide und Alkalimetallmetasilikate. Bevorzugtes Alkalimetall ist jeweils Kalium, besonders bevorzugt ist Natrium.Formulations of the invention may contain one or more alkali carriers. Alkaline carriers, for example, provide the pH of at least 9 when an alkaline pH is desired. Suitable examples are alkali metal carbonates, alkali metal hydrogencarbonates, alkali metal hydroxides and alkali metal metasilicates. Preferred alkali metal is in each case potassium, particularly preferred is sodium.

Erfindungsgemäße Formulierungen können neben Bleichmittel (D) ein oder mehrere Chlor-haltige Bleichmittel enthalten.Formulations according to the invention may contain, in addition to bleaching agent (D), one or more chlorine-containing bleaching agents.

Geeignete Chlor-haltige Bleichmittel sind beispielsweise 1,3-Dichloro-5,5-dimethylhydantoin, N-Chlorsulfamid, Chloramin T, Chloramin B, Natriumhypochlorit, Calciumhypochlorit, Magnesiumhypochlorit, Kaliumhypochlorit, Kaliumdichloroisocyanurat und Natriumdichloroisocyanurat.Suitable chlorine-containing bleaching agents are, for example, 1,3-dichloro-5,5-dimethylhydantoin, N-chlorosulfamide, chloramine T, chloramine B, sodium hypochlorite, calcium hypochlorite, magnesium hypochlorite, potassium hypochlorite, potassium dichloroisocyanurate and sodium dichloroisocyanurate.

Erfindungsgemäße Formulierungen können beispielsweise im Bereich von 3 bis 10 Gew.-% Chlor-haltiges Bleichmittel enthalten.For example, formulations according to the invention may contain in the range of from 3 to 10% by weight of chlorine-containing bleach.

Erfindungsgemäße Formulierungen können einen oder mehrere Bleichkatalysatoren enthalten. Bleichkatalysatoren kann man wählen aus bleichverstärkenden Übergangsmetallsalzen bzw. Übergangsmetallkomplexen wie beispielsweise Mangan-, Eisen-, Cobalt-, Ruthenium- oder Molybdän-Salenkomplexe oder carbonylkomplexe. Auch Mangan-, Eisen-, Kobalt-, Ruthenium-, Molybdän-, Titan-, Vanadium- und Kupfer-Komplexe mit stickstoffhaltigen Tripod-Liganden sowie Kobalt-, Eisen-, Kupfer- und Ruthenium-Aminkomplexe sind als Bleichkatalysatoren verwendbar.Formulations of the invention may contain one or more bleach catalysts. Bleach catalysts can be selected from bleach-enhancing transition metal salts or transition metal complexes such as manganese, iron, cobalt, ruthenium or molybdenum-salene complexes or carbonyl complexes. Manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands and cobalt, iron, copper and ruthenium-amine complexes can also be used as bleach catalysts.

Erfindungsgemäße Formulierungen können einen oder mehrere Bleichaktivatoren, beispielsweise N-Methylmorpholinium-Acetonitril-Salze ("MMA-Salze"), TrimethylammoniumacetonitrilSalze, N-Acylimide wie beispielsweise N-Nonanoylsuccinimid,, 1,5-Diacetyl-2,2-dioxo-hexahydro-1,3,5-triazin ("DADHT") oder Nitrilquats (Trimethylammoniumacetonitrilsalze) enthalten.Formulations according to the invention may contain one or more bleach activators, for example N-methylmorpholinium acetonitrile salts ("MMA salts"), trimethylammonium acetonitrile salts, N-acylimides such as N-nonanoylsuccinimide, 1,5-diacetyl-2,2-dioxo-hexahydroxy 1,3,5-triazine ("DADHT") or nitrile quats (trimethylammonium acetonitrile salts).

Weitere Beispiele für geeignete Bleichaktivatoren sind Tetraacetylethylendiamin (TAED) und Tetraacetylhexylendiamin.Further examples of suitable bleach activators are tetraacetylethylenediamine (TAED) and tetraacetylhexylenediamine.

Erfindungsgemäße Formulierungen können einen oder mehrere Korrosionsinhibitoren enthalten. Darunter sind im vorliegenden Fall solche Verbindungen zu verstehen, die die Korrosion von Metall inhibieren. Beispiele für geeignete Korrosionsinhibitoren sind Triazole, insbesondere Benzotriazole, Bisbenzotriazole, Aminotriazole, Alkylaminotriazole, weiterhin Phenolderivate wie beispielsweise Hydrochinon, Brenzcatechin, Hydroxyhydrochinon, Gallussäure, Phloroglucin oder Pyrogallol.Formulations of the invention may contain one or more corrosion inhibitors. This is to be understood in the present case, such compounds that inhibit the corrosion of metal. Examples of suitable corrosion inhibitors are triazoles, in particular benzotriazoles, bisbenzotriazoles, aminotriazoles, alkylaminotriazoles, furthermore phenol derivatives such as, for example, hydroquinone, catechol, hydroxyhydroquinone, gallic acid, phloroglucinol or pyrogallol.

In einer Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen insgesamt im Bereich von 0,1 bis 1,5 Gew.-% Korrosionsinhibitor.In one embodiment of the present invention, formulations according to the invention contain a total of in the range of 0.1 to 1.5 wt .-% corrosion inhibitor.

Erfindungsgemäße Formulierungen können einen oder mehrere Gerüststoffe enthalten, beispielsweise Natriumsulfat.Formulations of the invention may contain one or more builders, for example, sodium sulfate.

Erfindungsgemäße Formulierungen können einen oder mehrere Entschäumer enthalten, gewählt beispielsweise aus Silikonölen und Paraffinölen.Formulations of the invention may contain one or more defoamers selected, for example, from silicone oils and paraffin oils.

In einer Ausführungsform der vorliegenden Erfindung enthalten erfindungsgemäße Formulierungen insgesamt im Bereich von 0,05 bis 0,5 Gew.-% Entschäumer.In one embodiment of the present invention, formulations according to the invention contain in total in the range from 0.05 to 0.5% by weight defoamer.

Erfindungsgemäße Formulierungen können Phosphonsäure oder ein oder mehrere Phosphonsäurederivate enthalten, beispielsweise Hydroxyethan-1,1-diphosphonsäure.Formulations according to the invention may contain phosphonic acid or one or more phosphonic acid derivatives, for example hydroxyethane-1,1-diphosphonic acid.

Ein weiterer Gegenstand der vorliegenden Erfindung ist die Verwendung von erfindungsgemäßen Formulierungen zur maschinellen Reinigung von Geschirr und Küchenutensilien. Als Küchenutensilien sind im Rahmen der vorliegenden Erfindung beispielsweise Töpfe, Pfannen, Kasserollen zu nennen, weiterhin metallene Gegenstände wie beispielsweise Schaumlöffel, Bratenwender und Knoblauchpressen.Another object of the present invention is the use of formulations according to the invention for the automatic cleaning of dishes and kitchen utensils. As kitchen utensils in the context of the present invention, for example, pots, pans, casseroles to call, and metal objects such as, for example, skimmers, roasters and garlic presses.

Bevorzugt ist die Verwendung von erfindungsgemäßen Formulierungen zur maschinellen Reinigung von Gegenständen, die mindestens eine Oberfläche aus Glas aufweisen, welches dekoriert oder nicht dekoriert sein kann. Dabei ist unter einer Oberfläche aus Glas im Rahmen der vorliegenden Erfindung zu verstehen, dass betreffender Gegenstand mindestens ein Stück aus Glas aufweist, das mit der Umgebungsluft in Berührung kommt und bei Gebrauch des Gegenstands verschmutzt werden kann. So kann es sich bei den betreffenden Gegenständen um solche handeln, die wie Trinkgläser oder Glasschüsseln im Wesentlichen gläsern sind. Es kann sich aber auch beispielsweise um Deckel handeln, die einzelne Komponenten aus einem anderen Material aufweisen, beispielsweise Topfdeckel mit Einfassung und Griff aus Metall.Preference is given to the use of formulations according to the invention for machine cleaning of articles which have at least one surface made of glass, which may be decorated or not decorated. In the context of the present invention, a surface of glass is to be understood as meaning that the object in question has at least one piece of glass which comes into contact with the ambient air and can be contaminated when the object is used. Thus, the objects in question may be those which are essentially glassware such as drinking glasses or glass bowls. But it can also be, for example, cover that have individual components of a different material, such as pot lid with edging and metal handle.

Oberfläche aus Glas kann dekoriert, beispielsweise gefärbt oder bedruckt, oder nicht dekoriert sein.Glass surface may be decorated, for example colored or printed, or not decorated.

Unter dem Begriff "Glas" werden beliebige Gläser subsumiert, beispielsweise Bleiglas und insbesondere Kalknatronglas, Kristallglas und Borosilikatgläser.The term "glass" includes any glass, for example lead glass and in particular soda lime glass, crystal glass and borosilicate glasses.

Vorzugsweise handelt es sich bei maschineller Reinigung um ein Spülen mit einer Spülmaschine (englisch: "automatic dishwashing").Machine cleaning is preferably dishwashing with a dishwasher (English: "automatic dishwashing").

In einer Ausführungsform der vorliegenden Erfindung setzt man mindestens eine erfindungsgemäße Formulierung zur maschinellen Reinigung von Trinkgläsern, gläsernen Vasen und Glasgefäßen zum Kochen ein.In one embodiment of the present invention, at least one formulation according to the invention for automated cleaning of drinking glasses, glass vases and glass jars is used for cooking.

In einer Ausführungsform der vorliegenden Erfindung setzt man zum Reinigen Wasser mit einer Härte im Bereich von 1 bis 30 °dH, bevorzugt 2 bis 25 °dH ein, wobei unter deutscher Härte insbesondere die Calcium-Härte zu verstehen ist.In one embodiment of the present invention, water having a hardness in the range from 1 to 30 ° dH, preferably from 2 to 25 ° dH, is used for cleaning, German hardness being taken to mean in particular the calcium hardness.

Auch zum Nachspülen kann man Wasser mit einer Härte im Bereich von 1 bis 30 °dH, bevorzugt 2 bis 25 °dH einsetzen.Also for rinsing water with a hardness in the range of 1 to 30 ° dH, preferably 2 to 25 ° dH can be used.

Setzt man erfindungsgemäße Formulierungen zur maschinellen Reinigung ein, so beobachtet man auch bei wiederholter maschineller Reinigung von Gegenständen, die mindestens eine Oberfläche aus Glas aufweisen, nur sehr geringe Neigung zur Glaskorrosion, und zwar selbst dann, wenn man Gegenstände, die mindestens eine Oberfläche aus Glas aufweisen, zusammen mit stark verschmutztem Besteck oder Geschirr reinigt. Außerdem ist es deutlich weniger schädlich, erfindungsgemäße Formulierung einzusetzen, um Glas zusammen mit Gegenständen aus Metall zu reinigen, beispielsweise zusammen mit Töpfen, Pfannen oder Knoblauchpressen.If machine-cleaning formulations according to the invention are used, even with repeated mechanical cleaning of objects which have at least one surface made of glass, there is very little tendency for glass corrosion, even if objects comprising at least one surface made of glass are used have, along with heavily soiled cutlery or dishes cleans. In addition, it is much less harmful to use the formulation of the present invention to clean glass together with metal objects, such as pots, pans or garlic presses.

Weiterhin kann man beobachten, dass erfindungsgemäße Formulierungen bei der Verwendung zum Spülen von Geschirr und Küchenutensilien und Glasoberflächen eine sehr gute Bleichwirkung aufweisen.Furthermore, it can be observed that formulations according to the invention have a very good bleaching action when used for rinsing dishes and kitchen utensils and glass surfaces.

Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von erfindungsgemäßen Formulierungen, kurz auch erfindungsgemäßes Herstellungsverfahren genannt. Zur Durchführung des erfindungsgemäßen Herstellungsverfahrens kann man beispielsweise so vorgehen, dass man

  1. (A) Aminocarboxylat, gewählt aus Methylglycindiacetat (MGDA), Iminodibernsteinsäure (IDS) und Glutaminsäurediacetat (GLDA) sowie deren Salzen, und
  2. (B) mindestens ein alkoxyliertes Alkylenimin-Polymer mit einem mittleren Molekulargewicht Mw im Bereich von 500 bis unter 800 g/mol, das eine positive Ladungsdichte von mindestens 5 meq/g aufweist und in dem im Bereich von 2 bis maximal 80 Gew.-% Alkylenoxid-Seitenketten aufweist, bezogen auf gesamtes alkoxyliertes Alkylenimin-Polymer, wobei alkoxyliertes Alkylenimin-Polymer (B) auf Polyethylenimin mit einem mittleren Molekulargewicht Mw im Bereich von 400 bis 500 g/mol basiert, ermittelt durch Lichtstreuung,
    und gegebenenfalls
  3. (C) Natriumcitrat oder
  4. (D) mindestens eine Verbindung, gewählt aus Alkalimetallpercarbonat, Alkalimetallperborat und Alkalimetallpersulfat,
und gegebenenfalls weitere Komponenten (E) in einem oder mehreren Schritten miteinander in Gegenwart von Wasser vermischt und anschließend das Wasser vollständig oder partiell entfernt.A further subject of the present invention is a process for the preparation of formulations according to the invention, in short also called production process according to the invention. For carrying out the preparation process according to the invention, it is possible, for example, to proceed in such a way that
  1. (A) aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDS) and glutamic acid diacetate (GLDA) and their salts, and
  2. (B) at least one alkoxylated alkyleneimine polymer having an average molecular weight M w in the range from 500 to less than 800 g / mol, which has a positive charge density of at least 5 meq / g and in which in the range from 2 to a maximum of 80 wt. % Alkylene oxide side chains, based on the total alkoxylated alkyleneimine polymer, wherein alkoxylated alkyleneimine polymer (B) is based on polyethyleneimine having an average molecular weight M w in the range from 400 to 500 g / mol, determined by light scattering,
    and optionally
  3. (C) sodium citrate or
  4. (D) at least one compound selected from alkali metal percarbonate, alkali metal perborate and alkali metal persulfate,
and optionally further components (E) are mixed together in one or more steps in the presence of water and then the water is completely or partially removed.

Verbindung (A), modifiziertes Polyalkylenimin (B) und Bleichmittel (D) sind vorstehend definiert.Compound (A), modified polyalkyleneimine (B) and bleaching agent (D) are defined above.

In einer Ausführungsform der vorliegenden Erfindung kann man, bevor man das Wasser zumindest teilweise entfernt, mit einem oder mehreren weiteren Inhaltsstoffen (E) für erfindungsgemäße Formulierung vermischen, beispielsweise mit einem oder mehreren Tenside, einem oder mehreren Enzymen, einem oder mehreren Buildern, einem oder mehrere Cobuildern, insbesondere Phosphor-freiem Builder, einem oder mehreren Alkaliträgern, einem oder mehreren Bleichmitteln, einem oder mehreren Bleichkatalysatoren, einem oder mehreren Bleichaktivatoren, einem oder mehreren Bleichmittelstabilisatoren, einem oder mehreren Entschäumern, einem oder mehreren Korrosionsinhibitoren, einem oder mehreren Gerüststoffen, mit Puffer oder Farbstoff.In one embodiment of the present invention, before at least partially removing the water, one may mix with one or more other ingredients (E) for formulation according to the invention, for example with one or more surfactants, one or more enzymes, one or more builders, one or more builders a plurality of co-builders, in particular phosphorus-free builders, one or more alkali carriers, one or more bleaches, one or more bleach catalysts, one or more bleach activators, one or more bleach stabilizers, one or more defoamers, one or more corrosion inhibitors, one or more builders Buffer or dye.

In einer Ausführungsform geht man so vor, dass man das Wasser ganz oder teilweise, beispielsweise bis zu einer Restfeuchte im Bereich von 0,1 bis 10 Gew.-% aus erfindungsgemäßer Formulierung entfernt, indem man es verdampft, insbesondere durch Sprühtrocknung, Sprühgranulierung oder Kompaktierung.In one embodiment, the water is completely or partially removed, for example, to a residual moisture in the range from 0.1 to 10% by weight of the formulation according to the invention by evaporation, in particular by spray drying, spray granulation or compaction ,

In einer Ausführungsform der vorliegenden Erfindung entfernt man das Wasser, ganz oder teilweise, bei einem Druck im Bereich von 0,3 bis 2 bar.In one embodiment of the present invention, the water is removed, in whole or in part, at a pressure in the range of 0.3 to 2 bar.

In einer Ausführungsform der vorliegenden Erfindung entfernt man das Wasser, ganz oder teilweise, bei Temperaturen im Bereich von 60 bis 220°C.In one embodiment of the present invention, the water is removed, in whole or in part, at temperatures in the range of 60 to 220 ° C.

Durch das erfindungsgemäße Herstellungsverfahren kann man erfindungsgemäße Formulierungen leicht erhalten.By means of the preparation process according to the invention, it is easy to obtain formulations according to the invention.

Die erfindungsgemäßen Reinigungsformulierungen können in flüssiger oder fester Form, ein- oder mehrphasig, als Tabletten oder in Form anderer Dosiereinheiten, verpackt oder unverpackt bereitgestellt werden. Der Wassergehalt von flüssigen Formulierungen kann variieren von 35 bis 90% Wasser.The cleaning formulations according to the invention can be provided in liquid or solid form, single- or multiphase, as tablets or in the form of other dosage units, packaged or unpackaged. The water content of liquid formulations can vary from 35 to 90% water.

Die Erfindung kann man wie folgt testen.The invention can be tested as follows.

Allgemeines: Es ist darauf zu achten, dass man nach dem ersten Reinigen der Prüfkörper in der Haushaltsgeschirrspülmaschine bis nach dem Wiegen und visuellen Abmustern der Gläser die Prüfkörper nur mit sauberen Baumwollhandschuhen angefasst wurden, damit das Gewicht bzw. der visuelle Eindruck der Prüfkörper nicht verfälscht wurde.General: Care must be taken that after the first cleaning of the specimens in the household dishwasher until after weighing and visual patterning of the glasses, the specimens were only touched with clean cotton gloves, so that the weight or the visual impression of the specimens was not falsified ,

Angaben in % sind Gew.-%, wenn nicht ausdrücklich anders angegeben.Data in% are wt .-%, unless expressly stated otherwise.

I. Herstellung von erfindungsgemäßen FormulierungenI. Preparation of formulations according to the invention

Die Ladungsdichte von modifizierten Polyethyleniminen (B) wurde stets wie folgt bestimmt (siehe auch: Horn, Prog. Colloid & Polym. Sci. 1978, 65, 251 ):
Man löste 1 g des betreffenden modifizierten Polyethylenimins (B) in 100 ml vollentsalztem Wasser. Mit einer Pufferlösung und wässriger HCl stellte man einen pH-Wert von 4,0 ein, bestimmt potenziometrisch. Man setzte drei ml einer wässrigen Lösung von Toluidinblau (50 mg/l Wasser) zu und titrierte N/400-KPVS (Kaliumpolyvinylsulfat) Lösung (Fa. Wako) mit einer Konzentration von 0,0004 meq/ml bis zu einem Farbumschlag von blau nach rosa. Man berechnete die Ladungsdichte wie folgt: LA = 0,4 KV

Figure imgb0003

  • LA: Ladungsdichte des betreffenden modifizierten Polyethylenimins (B), meq/g (Milliäquivalent/g)
  • KV: Verbrauch der N/400-KPVS-Lösung [ml]
The charge density of modified polyethylenimines (B) was always determined as follows (see also: Horn, Prog. Colloid & Polym. Sci. 1978, 65, 251 ):
1 g of the respective modified polyethyleneimine (B) was dissolved in 100 ml of demineralized water. With a buffer solution and aqueous HCl was set to a pH of 4.0, determined potentiometrically. Three ml of an aqueous solution of toluidine blue (50 mg / l water) was added and titrated N / 400-KPVS (potassium polyvinyl sulfate) solution (Wako) with a concentration of 0.0004 meq / ml to a color change of blue pink. The charge density was calculated as follows: LA = 0.4 KV
Figure imgb0003
  • LA: charge density of the respective modified polyethyleneimine (B), meq / g (milliequivalent / g)
  • KV: consumption of N / 400 KPVS solution [ml]

I.1 Herstellung von BasismischungenI.1 Preparation of basic mixtures

Basismischungen lassen sich aus den Einsatzstoffen gemäß Tabelle 1 herstellen. Die Einsatzstoffe werden trocken vermischt. Tabelle 1: Basismischungen für Versuche mit erfindungsgemäßen Formulierungen und Vergleichsformulierungen Basis-1 Basis-2 Basis-3 Protease 2,5 2,5 2,5 Amylase 1 1 1 n-C18H37(OCH2CH2)9OH 5 5 5 Polyacrylsäure Mw 4.000 g/mol, als Natriumsalz, vollständig neutralisiert 10 10 10 Natriumpercarbonat (D.1) 10,5 10,5 10,5 TAED 4 4 4 Na2Si2O5 2 2 2 Na2CO3 19,5 19,5 19,5 Natriumcitrat Dihydrat 5 22,5 30 Alle Angaben in g.Basic mixtures can be prepared from the starting materials according to Table 1. The starting materials are mixed dry. Table 1: Basic mixtures for experiments with formulations according to the invention and comparative formulations Base 1 Base 2 Base 3 protease 2.5 2.5 2.5 amylase 1 1 1 nC 18 H 37 (OCH 2 CH 2 ) 9 OH 5 5 5 Polyacrylic acid M w 4,000 g / mol, as sodium salt, completely neutralized 10 10 10 Sodium percarbonate (D.1) 10.5 10.5 10.5 TAED 4 4 4 Na 2 Si 2 O 5 2 2 2 Na 2 CO 3 19.5 19.5 19.5 Sodium citrate dihydrate 5 22.5 30 All information in g.

Abkürzungen:Abbreviations:

  • MGDA: Methylglycindiessigsäure als TrinatriumsalzMGDA: methylglycine diacetic acid as trisodium salt
  • TAED: N,N,N',N'-TetraacetylethylendiaminTAED: N, N, N ', N'-tetraacetylethylenediamine
Vorgehen:Action:

In einem 100-ml-Becherglas legt man 20 ml destilliertes Wasser vor und gibt modifiziertes Polyethylenimin (B) zu.In a 100 ml beaker, add 20 ml of distilled water and add modified polyethylenimine (B).

Dann rührt man 10 Minuten. Anschließend gibt man MGDA-Trinatriumsalz (A.1), gelöst in 30 ml Wasser, gemäß Tabelle 3 zu. Danach gibt man Basismischung zu, rührt erneut um und verdampft das Wasser.Then stir for 10 minutes. Then, MGDA trisodium salt (A.1) dissolved in 30 ml of water is added according to Table 3. Then add basic mixture, stir again and evaporate the water.

II. Verwendung von erfindungsgemäßen Formulierungen und Vergleichsformulierungen zum maschinellen Reinigen von GläsernII. Use of formulations according to the invention and comparative formulations for machine cleaning of glasses

Die Prüfung von erfindungsgemäßen Formulierungen und Vergleichsformulierungen erfolgt wie folgt. II.1 Prüfmethode Geschirrspüler mit Dauerläufer Geschirrspüler: Miele G 1222 SCL Programm: 65°C (mit Vorspülen) Spülgut: 3 Sektgläser "GILDE", 3 Schnapsgläser, "INTERMEZZO" The testing of formulations according to the invention and comparative formulations is carried out as follows. II.1 Test method Dishwasher with endurance runner Dishwasher: Miele G 1222 SCL Program: 65 ° C (with pre-rinse) ware: 3 champagne glasses "GILDE", 3 shot glasses, "INTERMEZZO"

Zum Reinigen werden die Gläser im oberen Geschirrkorb der Spülmaschine eingeordnet. Als Geschirrspülmittel setzt man jeweils 25 g erfindungsgemäße Formulierung oder 25 g Vergleichsformulierungein. Man spült bei einer Klarspültemperatur von 55°C. Die Wasserhärte liegt jeweils im Bereich von null bis 2 °dH. Man spült jeweils 100 Spülzyklen, d.h., man lässt das Programm 100 x ablaufen. Die Auswertung erfolgt gravimetrisch und visuell nach 100 Spülzyklen.For cleaning, the glasses are arranged in the upper dish rack of the dishwasher. The dishwashing agent used is in each case 25 g of formulation according to the invention or 25 g of comparative formulation. Rinse at a rinse temperature of 55 ° C. The water hardness is in each case in the range of zero to 2 ° dH. One flushes every 100 rinse cycles, i.e., the program is run 100 times. The evaluation is carried out gravimetrically and visually after 100 rinsing cycles.

Das Gewicht der Gläser wird vor Beginn des ersten Spülzyklus und nach dem Trocknen nach dem letzten Spülzyklus bestimmt. Der Gewichtsverlust ist die Differenz der beiden Werte.The weight of the glasses is determined before the beginning of the first rinse cycle and after drying after the last rinse cycle. The weight loss is the difference between the two values.

Neben der gravimetrischen Auswertung wird eine visuelle Bewertung des Spülguts nach 100 Zyklen in einer abgedunkelten Kammer unter Licht hinter einer Lochblende unter Verwendung einer Notenskala von 1 (sehr schlecht) bis 5 (sehr gut) vorgenommen. Dabei werden jeweils Noten für flächige Korrosion / Trübung bzw. Linienkorrosion vergeben.In addition to the gravimetric evaluation, a visual assessment of the items to be cleaned is made after 100 cycles in a darkened chamber under light behind a pinhole using a grading scale from 1 (very poor) to 5 (very good). In each case grades for area corrosion / turbidity or line corrosion are awarded.

Versuchsdurchführung:Experimental procedure:

Zunächst spült man zum Zwecke der Vorbehandlung die Prüfkörper in einer Haushaltsgeschirrspülmaschine (Bosch SGS5602) mit 1 g Tensid (n-C18H37(OCH2CH2)10OH) und 20 g Zitronensäure, um eventuelle Verunreinigungen zu entfernen. Man trocknet die Prüfkörper, bestimmt ihr Gewicht und fixierte sie auf dem Gitterbodeneinsatz.First, for the purpose of pretreatment, the specimens are rinsed in a domestic dishwasher (Bosch SGS5602) with 1 g of surfactant (nC 18 H 37 (OCH 2 CH 2 ) 10 OH) and 20 g of citric acid to remove any impurities. The test pieces are dried, their weight determined and fixed on the grid floor insert.

Zur Beurteilung des gravimetrischen Abtrags werden die trockenen Prüfkörper gewogen. Anschließend erfolgt die visuelle Beurteilung der Prüfkörper. Hierbei beurteilt man die Oberfläche der Prüfkörper hinsichtlich Linienkorrosion (Glasriefen) und Trübungskorrosion (flächenartige Trübung).To assess the gravimetric removal, the dry test specimens are weighed. This is followed by the visual assessment of the test specimens. Here, the surface of the test specimens is evaluated for line corrosion (scorching) and haze corrosion (areal haze).

Die Bewertungen erfolgen nach folgendem Schema.The assessments are made according to the following scheme.

Linienkorrosion:Line corrosion:

  • L5: keine Linien zu erkennenL5: no lines to recognize
  • L4: in sehr wenigen Bereichen geringe Linienbildung, feine LinienkorrosionL4: in very few areas low line formation, fine line corrosion
  • L3: in einigen Bereichen LinienkorrosionL3: line corrosion in some areas
  • L2: in mehreren Bereichen LinienkorrosionL2: line corrosion in several areas
  • L1: Stark ausgeprägte LinienkorrosionL1: Strong line corrosion
Glastrübungglass opacity

  • T5: keine Trübung zu erkennenT5: no haze visible
  • T4: in sehr wenigen Bereichen geringe TrübungT4: low turbidity in very few areas
  • T3: in einigen Bereichen TrübungenT3: cloudiness in some areas
  • T2: in mehreren Bereichen TrübungenT2: turbidity in several areas
  • T1: Stark ausgeprägte Trübung über fast die ganze GlasoberflächeT1: markedly turbid over almost the entire glass surface

Bei der Abmusterung wurden auch Zwischennoten (z.B. L3-4) zugelassen. II.1 Prüfmethode Geschirrspüler mit Dauerläufer Geschirrspüler: Miele G 1222 SCL Programm: 65°C (mit Vorspülen) Spülgut: 3 Sektgläser "GILDE", 3 Schnapsgläser, "INTERMEZZO" Interim scores (eg L3-4) were also allowed for the match. II.1 Test method Dishwasher with endurance runner Dishwasher: Miele G 1222 SCL Program: 65 ° C (with pre-rinse) ware: 3 champagne glasses "GILDE", 3 shot glasses, "INTERMEZZO"

Zum Reinigen wurden die Gläser im oberen Geschirrkorb der Spülmaschine eingeordnet. Als Geschirrspülmittel setzte man jeweils 25 g erfindungsgemäße Formulierung oder 25 g Vergleichsformulierung gemäß Tabelle 3 ein, wobei Tabelle 3 die aktiven Komponenten (A.1), Basismischung , Silikat (C.1 oder C.2) und Verbindung (D) bzw. (E) und (B) von erfindungsgemäßer Formulierung jeweils einzeln spezifiziert. Man spülte bei einer Klarspültemperatur von 55°C. Die Wasserhärte lag jeweils im Bereich von null bis 2 °dH. Man spülte jeweils 100 Spülzyklen, d.h., man ließ das Programm 100 x ablaufen. Die Auswertung erfolgte gravimetrisch und visuell nach 100 Spülzyklen.For cleaning, the glasses were placed in the upper dish rack of the dishwasher. The dishwashing agent used was in each case 25 g of formulation according to the invention or 25 g of comparison formulation according to Table 3, where Table 3 shows the active components (A.1), base mixture, silicate (C.1 or C.2) and compound (D) or ( E) and (B) of inventive formulation individually specified. Rinsing was carried out at a rinse temperature of 55 ° C. The water hardness was in each case in the range of zero to 2 ° dH. One rinsed 100 rinse cycles each, i.e., the program was run 100 times. The evaluation was carried out gravimetrically and visually after 100 rinsing cycles.

Das Gewicht der Gläser wurde vor Beginn des ersten Spülzyklus und nach dem Trocknen nach dem letzten Spülzyklus bestimmt. Der Gewichtsverlust ist die Differenz der beiden Werte.The weight of the glasses was determined before the beginning of the first rinse cycle and after drying after the last rinse cycle. The weight loss is the difference between the two values.

Neben der gravimetrischen Auswertung wurde eine visuelle Bewertung des Spülguts nach 100 Zyklen in einer abgedunkelten Kammer unter Licht hinter einer Lochblende unter Verwendung einer Notenskala von 1 (sehr schlecht) bis 5 (sehr gut) vorgenommen. Dabei wurden jeweils Noten für flächige Korrosion / Trübung bzw. Linienkorrosion vergeben.In addition to the gravimetric evaluation, a visual assessment of the washware was made after 100 cycles in a darkened chamber under light behind a pinhole using a grading scale from 1 (very poor) to 5 (very good). In each case grades for area corrosion / turbidity or line corrosion were awarded.

Versuchsdurchführung:Experimental procedure:

Zunächst spülte man zum Zwecke der Vorbehandlung die Prüfkörper in einer Haushaltsgeschirrspülmaschine (Bosch SGS5602) mit 1 g Tensid (n-C18F37(OCH2CH2)10OH) und 20 g Zitronensäure, um eventuelle Verunreinigungen zu entfernen. Man trocknete die Prüfkörper, bestimmte ihr Gewicht und fixierte sie auf dem Gitterbodeneinsatz.First, for the purpose of pretreatment, the specimens were rinsed in a domestic dishwasher (Bosch SGS5602) with 1 g of surfactant (nC 18 F 37 (OCH 2 CH 2 ) 10 OH) and 20 g of citric acid to remove any impurities. The test pieces were dried, their weight determined and fixed on the grid floor insert.

Zur Beurteilung des gravimetrischen Abtrags wurden die trockenen Prüfkörper gewogen. Anschließend erfolgte die visuelle Beurteilung der Prüfkörper. Hierbei beurteilte man die Oberfläche der Prüfkörper hinsichtlich Linienkorrosion (Glasriefen) und Trübungskorrosion (flächenartige Trübung).To assess the gravimetric removal, the dry specimens were weighed. This was followed by the visual assessment of the test specimens. The surface of the test specimens was evaluated for line corrosion (glass scoring) and haze corrosion (areal haze).

Die Bewertungen erfolgten nach folgendem Schema.The assessments were made according to the following scheme.

Linienkorrosion:Line corrosion:

  • L5: keine Linien zu erkennenL5: no lines to recognize
  • L4: in sehr wenigen Bereichen geringe Linienbildung, feine LinienkorrosionL4: in very few areas low line formation, fine line corrosion
  • L3: in einigen Bereichen LinienkorrosionL3: line corrosion in some areas
  • L2: in mehreren Bereichen LinienkorrosionL2: line corrosion in several areas
  • L1: Stark ausgeprägte LinienkorrosionL1: Strong line corrosion
Glastrübungglass opacity

  • L5: keine Trübung zu erkennenL5: no haze visible
  • L4: in sehr wenigen Bereichen geringe TrübungL4: low turbidity in very few areas
  • L3: in einigen Bereichen TrübungenL3: cloudiness in some areas
  • L2: in mehreren Bereichen TrübungenL2: cloudiness in several areas
  • L1: Stark ausgeprägte Trübung über fast die ganze GlasoberflächeL1: markedly turbid over almost the entire glass surface

Bei der Abmusterung wurden auch Zwischennoten (z.B. L3-4) zugelassen.Interim scores (e.g., L3-4) were also allowed on the match.

Wenn man statt Wasser Härtewasser mit 2° dH für die Tests einsetzte, so waren erfindungsgemäße Formulierungen den entsprechenden Vergleichsformulierungen ebenfalls stets überlegen, was die Inhibierung der Glaskorrosion betrifft.If hardness water at 2 ° dH was used instead of water for the tests, formulations according to the invention were also always superior to the corresponding comparative formulations in terms of the inhibition of glass corrosion.

II.3 ErgebnisseII.3 Results

Die Ergebnisse sind in den Tabelle 3 zusammengefasst. Tabelle 3: Ergebnisse der Tests mit Geschirrspüler (Dauerläufer) Beispiel Nr. Basismischung: [g] (A.1) [g] (B) [mg] Gewichtsverlust Sektglas [mg] Gewichtsverlust Schnapsglas [mg] Visuelle Bewertung Sektglas Visuelle Bewertung Schnapsglas V-1 Basis-2: 17 3 --- 80 48 L1, T1-2 L1, T1-2 1 Basis-2: 17 3 60 (B.1.1.1) 17 9 L4, T4-5 L4, T5 2 Basis-2: 17 3 30 (B.1.1.1) 19 11 L3-4, T4-5 L4, T5 V-3 Basis-2: 17 3 30 (B.1.1.3) 67 36 L2, T2 L1-2, T2-3 V-4 Basis-2: 17 3 25 (B.2.2.3) 69 39 L2-3, T2 L2, T2 The results are summarized in Table 3. Table 3: Results of tests with dishwasher (endurance runner) Example no. Base mixture: [g] (A.1) [g] (B) [mg] Weight loss champagne glass [mg] Weight loss shot glass [mg] Visual rating champagne glass Visual rating shot glass V-1 Base 2:17 3 --- 80 48 L1, T1-2 L1, T1-2 1 Base 2:17 3 60 (B.1.1.1) 17 9 L4, T4-5 L4, T5 2 Base 2:17 3 30 (B.1.1.1) 19 11 L3-4, T4-5 L4, T5 V-3 Base 2:17 3 30 (B.1.1.3) 67 36 L2, T2 L1-2, T2-3 V-4 Base 2:17 3 25 (B.2.2.3) 69 39 L2-3, T2 L2, T2

In den erfindungsgemäßen Beispielen konnte stets nur geringe oder gar keine Glaskorrosion festgestellt werden.In the examples according to the invention, only little or no glass corrosion could always be determined.

Claims (15)

  1. A formulation which is free from heavy metals, comprising
    (A) at least one aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDA) and glutamic acid diacetate (GLDA), and salts thereof,
    (B) at least one alkoxylated alkyleneimine polymer with an average molecular weight Mw in the range from 500 to below 800 g/mol which has a positive charge density of at least 5 meq/g and which has in the range from 2 to at most 80% by weight alkylene oxide side chains, based on total alkoxylated alkyleneimine polymer, where alkoxylated alkyleneimine polymer (B) is based on polyethyleneimine with an average molecular weight Mw in the range from 400 to 500 g/mol, ascertained by light scattering.
  2. The formulation according to claim 1, which is free from phosphates and polyphosphates.
  3. The formulation according to claim 1 or 2, wherein (B) is selected from polyethyleneimines which have been reacted with ethylene oxide or propylene oxide.
  4. The formulation according to any one of claims 1 to 3, which has a heavy metal content below 0.05 ppm, based on the solids content of the formulation in question.
  5. The formulation according to any one of claims 1 to 4, wherein alkyleneimine polymer (B) is selected from those in which at most 30 mol% of the nitrogen atoms of the alkyleneimine polymer have been reacted with propylene oxide.
  6. The formulation according to any one of claims 1 to 5, which is solid at room temperature.
  7. The formulation according to any one of claims 1 to 6, which comprises in the range from 0.1 to 10% by weight of water.
  8. The formulation according to any one of claims 1 to 7, wherein the molar ratio of nitrogen atoms to alkylene oxide groups in the alkoxylated alkyleneimine polymer (B) is at most 5.
  9. The formulation according to any one of claims 1 to 8, which comprises:
    in total in the range from 1 to 50% by weight of aminocarboxylate (A),
    in total in the range fro 0.001 to 2% by weight of alkoxylated alkyleneimine polymer (B),
    based in each case on the solids content of the formulation in question.
  10. The use of formulations according to any one of claims 1 to 9 for washing dishes and kitchen utensils, where washing is carried out with water of hardness from 2 to 25° German hardness.
  11. The use of formulations according to any one of claims 1 to 9 for washing objects which have at least one surface made of glass, which may be decorated or undecorated.
  12. The use according to claim 10 or 11, wherein the washing is washing using a dishwasher.
  13. The use according to any one of claims 10 to 12, wherein at least one formulation according to any one of claims 1 to 8 is used for washing drinking glasses, glass vases and glass vessels for cooking.
  14. A process for producing formulations according to any one of claims 1 to 9, wherein
    (A) aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDA) and glutamic acid diacetate (GLDA), and salts thereof, and
    (B) at least one alkoxylated alkyleneimine polymer with an average molecular weight Mw in the range from 500 to below 800 g/mol which has a positive charge density of at least 5 meq/g and which has in the range from 2 to at most 80% by weight alkylene oxide side chains, based on total alkoxylated alkyleneimine polymer,
    and optionally further components are mixed in one or more steps with one another in the presence of water and then the water is completely or partially removed.
  15. The process according to claim 14, wherein the water is removed by spray-drying or spray-granulation.
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JP2016526056A (en) 2016-09-01
JP6235120B2 (en) 2017-11-22
RU2015149916A (en) 2017-05-26
CN105143424B (en) 2018-10-23
PL2989192T3 (en) 2019-01-31
WO2014173473A1 (en) 2014-10-30
US20160075972A1 (en) 2016-03-17
KR20160003006A (en) 2016-01-08
EP2989192A1 (en) 2016-03-02
CN105143424B9 (en) 2019-01-29
CN105143424A (en) 2015-12-09

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