Dishwashing formulation comprising a mixture of hydrophobically modified polycarboxylates and hydrophilically modified polycarboxylates
Abstract
A phosphate-free detergent formulation for machine dishwashing, having from 1 to 20% by weight of a mixture of from 5 to 95% by weight of hydrophobically modified polycarboxylates I formed from 20 to 80 mol % of at least one monoethylenically unsaturated C3-C10-mono- or -dicarboxylic acid or anhydrides thereof, from 0 to 80 mol % of at least one monomer of the general formula (I) in which R1, R2 and R3 are each independently H, CH3 or C2H5, and R4 is a linear, branched or cyclic radical having from 1 to 6 carbon atoms or an aromatic radical having from 6 to 12 carbon atoms, and from 0 to 20 mol % of at least one further monomer, from 5 to 95% by weight of hydrophilically modified polycarboxylates II, where the sum of a1) and a2) adds up to 100% by weight.

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5 claims: 5 independent, 0 dependent
- 1A phosphate-free detergent formulation for machine dishwashing, comprising, as components:a) from 1 to 20% by weight of a mixture of hydrophobically modified polycarboxylates a1) and hydrophilically modified polycarboxylates a2), composed of a1) from 5 to 95% by weight of hydrophobically modified polycarboxylates I formed from a11) from 20 to 80 mol% of at least one monomer from the group consisting of monoethylenically unsaturated C3-C10-mono- or -dicarboxylic acids or anhydrides thereof,a12) from 0 to 80 mol% of at least one monomer of the general formula (I) in which R1, R2 and R3 are each independently H, CH3 or C2H5,R4 is a linear, branched or cyclic radical having from 1 to 6 carbon atoms or an aromatic radical having from 6 to 12 carbon atoms, anda13) from 0 to 20 mol% of at least one further monomer selected from the group consisting of olefins having 10 or more carbon atoms or mixtures thereof and reactive polyisobutenes having an average of from 12 to 100 carbon atoms,a2) from 5 to 95% by weight of hydrophilically modified polycarboxylates II formed from a21) from 50 to 99 mol% of acrylic acid and/or of a water-soluble salt of acrylic acid,a22) from 0 to 50 mol% of a further acidic monomer and/or of a water-soluble salt thereof,a23) from 0.1 to 20 mol% of at least one nonionic monomer of the general formula (II) in which the variables are each defined as follows: R5 is hydrogen or methyl,Z is -C(O)O- or -CH2O-,R6 are identical or different, unbranched or branched C2-C4-alkylene radicals,R7 is unbranched or branched C1-C6-alkyl,n is from 3 to 50, where the sum of a1) and a2) adds up to 100% by weight,b) from 0 to 50% by weight of complexing agents,c) from 0.1 to 20% by weight of low-foam nonionic surfactants,d) from 0.1 to 30% by weight of bleaches and optionally bleach activators,e) from 0 to 60% by weight of further builders,f) from 0 to 8% by weight of enzymes,g) from 0 to 50% by weight of one or more further additives, such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, corrosion inhibitors, defoamers, dyes, fragrances, fillers, organic solvents and water, where the sum of components a) to g) adds up to 100% by weight. Formulations de nettoyage sans phosphate pour le lavage de la vaisselle en machine, contenant en tant que composants : a) 1 à 20 % en poids d'un mélange de polycarboxylates modifiés hydrophobiquement a1) et de polycarboxylates modifiés hydrophiliquement a2) de a1) 5 à 95 % en poids de polycarboxylates modifiés hydrophobiquement I de a11) 20 à 80 % en moles d'au moins un monomère du groupe constitué par les acides mono- ou dicarboxyliques en C3-C10 monoéthyléniquement insaturés ou leurs anhydrides,a12) 0 à 80 % en moles d'au moins un monomère de formule générale (I) dans laquelle R1, R2 et R3 signifient indépendamment les uns des autres H, CH3 ou C2H5,R4 signifie un radical linéaire, ramifié ou cyclique de 1 à 6 atomes de carbone ou un radical aromatique de 6 à 12 atomes de carbone, eta13) 0 à 20 % en moles d'au moins un monomère supplémentaire, choisi dans le groupe constitué par les oléfines de 10 atomes de carbone ou plus ou leurs mélanges et les polyisobutènes réactifs contenant en moyenne 12 à 100 atomes de carbone,a2) 5 à 95 % en poids de polycarboxylates modifiés hydrophiliquement II de a21) 50 à 99 % en moles d'acide acrylique et/ou d'un sel soluble dans l'eau de l'acide acrylique,a22) 0 à 50 % en moles d'un autre monomère acide et/ou d'un sel soluble dans l'eau de celui-ci,a23) 0,1 à 20 % en moles d'au moins un monomère non ionique de formule générale (II) dans laquelle les variables ont la signification suivante : R5 hydrogène ou méthyle, Z-C(O)O- ou -CH2O- R6 radicaux alkylène en C2-C4 non ramifiés ou ramifiés identiques ou différents,R7 alkyle en C1-C6 non ramifié ou ramifié,n 3 à 50,la somme de a1) et a2) étant de 100 % en poids,b) 0 à 50 % en poids d'un agent complexant,c) 0,1 à 20 % en poids de tensioactifs non ioniques faiblement moussants,d) 0,1 à 30 % en poids d'agents blanchissants et éventuellement d'activateurs de blanchiment,e) 0 à 60 % en poids d'adjuvants supplémentaires,f) 0 à 8 % en poids d'enzymes,g) 0 à 50 % en poids d'un ou de plusieurs additifs supplémentaires tels que des tensioactifs anioniques ou zwitterioniques, des catalyseurs de blanchiment, des supports d'alcalis, des inhibiteurs de corrosion, des agents antimousse, des colorants, des parfums, des charges, des solvants organiques et de l'eau, la somme des composants a) à g) étant de 100 % en poids. Phosphatfreie Reinigungsformulierungen für die maschinelle Geschirrreinigung enthaltend als Komponenten: a) 1 bis 20 Gew.-% eines Gemischs aus hydrophob modifizierten Polycarboxylaten a1) und hydrophil modifizierten Polycarboxylaten a2) aus a1) 5 bis 95 Gew.-% hydrophob modifizierten Polycarboxylaten 1 aus a11) 20 bis 80 mol-% mindestens eines Monomeren aus der Gruppe bestehend aus monoethylenisch ungesättigten C3-C10-Mono- oder Dicarbonsäuren oder deren Anhydriden,a12) 0 bis 80 mol-% mindestens eines Monomeren der allgemeinen Formel (I), worin R1, R2 und R3 unabhängig voneinander H, CH3 oder C2H5 bedeuten,R4 einen linearen, verzweigten oder cyclischen Rest mit 1 bis 6 Kohlenstoffatomen oder einen aromatischen Rest mit 6 bis 12 Kohlenstoffatomen bedeutet, unda13) 0 bis 20 mol-% mindestens eines weiteren Monomeren, ausgewählt aus der Gruppe bestehend aus Olefinen mit 10 oder mehr Kohlenstoffatomen oder deren Gemischen und reaktiven Polyisobutenen mit im Mittel 12 bis 100 Kohlenstoffatomen,a2) 5 bis 95 Gew.-% hydrophil modifizierten Polycarboxylaten II aus a21) 50 bis 99 mol.-% Acrylsäure und/oder eines wasserlöslichen Salzes der Acrylsäure,a22) 0 bis 50 mol.-% eines weiteren sauren Monomers und/oder eines wasserlöslichen Salzes desselben,a23) 0,1 bis 20 mol.-% mindestens eines nichtionischen Monomers der allgemeinen Formel (II), in der die Variablen folgende Bedeutung haben: R5 Wasserstoff oder Methyl,Z -C(O)O- oder -CH2O-R6 gleiche oder verschiedene unverzweigte oder verzweigte C2-C4-Alkylenreste,R7 unverzweigtes oder verzweigtes C1-C6-Alkyl,n 3 bis 50, wobei die Summe aus a1) und a2) 100 Gew.-% ergibt,b) 0 bis 50 Gew.-% Komplexbildner,c) 0,1 bis 20 Gew.-% schwach schäumende nichtionische Tenside,d) 0,1 bis 30 Gew.-% Bleichmittel und gegebenenfalls Bleichaktivatoren,e) 0 bis 60 Gew.-% weitere Builder,f) 0 bis 8 Gew.-% Enzyme,g) 0 bis 50 Gew.-% ein oder mehrere weitere Zusatzstoffe wie anionische oder zwitterionische Tenside, Bleichkatalysatoren, Alkaliträger, Korrosionsinhibitoren, Entschäumer, Farbstoffe, Duftstoffe, Füllstoffe, organische Lösungsmittel und Wasser, wobei die Summe der Komponenten a) bis g) 100 Gew.-% ergibt.
- 2Formulation de nettoyage sans phosphate selon la revendication 1, caractérisée en ce que, dans le polycarboxylate modifié hydrophobiquement a1), les monomères a11) sont choisis dans le groupe constitué par l'acide maléique, l'anhydride de l'acide maléique et l'acide acrylique, les monomères a12) sont choisis dans le groupe constitué par l'isobutène, le diisobutène et le styrène et les monomères a13) dans le groupe constitué par le 1-dodécène, le 1-octadécène, une alpha-oléfine en C22, un mélange d'alpha-oléfines en C20 à C24 et le polyisobutène contenant en moyenne 12 à 100 atomes C. Phosphatfreie Reinigungsformulierung nach Anspruch 1, dadurch gekennzeichnet, dass in dem hydrophob modifizierten Polycarboxylat a1) die Monomere a11) ausgewählt sind aus der Gruppe bestehend aus Maleinsäure, Maleinsäureanhydrid und Acrylsäure, die Monomere a12) ausgewählt sind aus der Gruppe bestehend aus Isobuten, Diisobuten und Styrol und die Monomere a13) ausgewählt sind aus der Gruppe bestehend aus 1-Dodecen, 1-Oktadecen, C22-alpha-Olefin, einem Gemisch aus C20-C24-alpha-Olefinen und Polyisobuten mit im Mittel 12 bis 100 C-Atomen. The phosphate-free detergent formulation according to claim 1, wherein the monomers a11) in the hydrophobically modified polycarboxylate a1) are selected from the group consisting of maleic acid, maleic anhydride and acrylic acid, the monomers a12) are selected from the group consisting of isobutene, diisobutene and styrene, and the monomers a13) are selected from the group consisting of 1-dodecene, 1-octadecene, C22-alphaolefin, a mixture of C20-C24-alpha-olefins and polyisobutene having an average of from 12 to 100 carbon atoms.
- 3Formulation de nettoyage sans phosphate selon la revendication 1 ou 2, caractérisée en ce que les polycarboxylates modifiés hydrophiliquement présentent une résistance au calcium correspondant à un point de trouble d'une solution contenant 250 mg/L du polymère modifié hydrophiliquement à pH 10 à une concentration en calcium > 2 000 mg/L Ca2+. Phosphatfreie Reinigungsformulierung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die hydrophil modifizierten Polycarboxylate eine Calciumunempfindlichkeit aufweisen, entsprechend einem Trübungspunkt einer Lösung enthaltend 250 mg/L des hydrophil modifizierten Polymers bei pH 10 bei einer Calciumkonzentration von > 2000 mg/L Ca2+. The phosphate-free detergent formulation according to claim 1 or 2, wherein the hydrophilically modified polycarboxylates have a calcium insensitivity corresponding to a cloud point of a solution comprising 250 mg/l of the hydrophilically modified polymer at pH 10 at a calcium concentration of > 2000 mg/l of Ca2+.
- 4Formulation de nettoyage sans phosphate selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'agent complexant b) est choisi dans le groupe constitué par l'acide nitrilotriacétique, l'acide hydroxyéthyléthylène-diamine-triacétique, l'acide éthylène-diamine-tétraacétique, l'acide diéthylène-triamine-pentaacétique et l'acide méthylglycidine-diacétique, l'acide glutaminique-diacétique, l'acide iminodisuccinique, l'acide hydroxyiminodisuccinique, l'acide éthylènediamine-disuccinique, l'acide asparaginique-diacétique et leurs sels. Phosphatfreie Reinigungsformulierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Komplexbildner b) ausgewählt ist aus der Gruppe bestehend aus Nitrilotriessigsäure, Hydroxyethylethylendiamintriessigsäure, Ethylendiamintetraessigsäure, Diethylentriaminpentaessigsäure und Methylglycindiessigsäure, Glutaminsäurediessigsäure, Iminodibernsteinsäure, Hydroxyiminodibernsteinsäure, Ethylendiamindibernsteinsäure, Asparaginsäurediessigsäure sowie deren Salzen. The phosphate-free detergent formulation according to any one of claims 1 to 3, wherein the complexing agent b) is selected from the group consisting of nitrilotriacetic acid, hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid and methylglycinediacetic acid, glutamic acid diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, ethylenediaminedisuccinic acid, aspartic acid diacetic acid, and salts thereof.
- 5The use of a mixture of hydrophobically modified polycarboxylates and hydrophilically modified polycarboxylates, composed of a1) from 5 to 95% by weight of hydrophobically modified polycarboxylates (I) formed from a11) from 20 to 80 mol% of at least one monomer from the group consisting of monoethylenically unsaturated C3-C10-mono- or -dicarboxylic acids or anhydrides thereof,a12) from 0 to 80 mol% of at least one monomer of the general formula (I) in which R1, R2 and R3 are each independently H, CH3 or C2H5,R4 is a linear, branched or cyclic radical having from 1 to 6 carbon atoms or an aromatic radical having from 6 to 12 carbon atoms, anda13) from 0 to 20 mol% of at least one further monomer selected from the group consisting of olefins having 10 or more carbon atoms or mixtures thereof and reactive polyisobutenes having an average of from 12 to 100 carbon atoms,a2) from 5 to 95% by weight of hydrophilically modified polycarboxylates II formed from a21) from 50 to 99 mol% of acrylic acid and/or of a water-soluble salt of acrylic acid,a22) from 0 to 50 mol% of a further acidic monomer and/or of a water-soluble salt thereof,a23) from 0.1 to 20 mol% of at least one nonionic monomer of the general formula (II) in which the variables are each defined as follows:R5 is hydrogen or methyl,Z is -C(O)O- or -CH2O-,R6 are identical or different, unbranched or branched C2-C4-alkylene radicals,R7 is unbranched or branched C1-C6-alkyl;n is from 3 to 50, where the sum of a1) and a2) adds up to 100% by weight, as a cobuilder in detergent formulations for machine dishwashing. Utilisation d'un mélange de polycarboxylates modifiés hydrophobiquement et de polycarboxylates modifiés hydrophiliquement de a1) 5 à 95 % en poids de polycarboxylates modifiés hydrophobiquement (I) de a11) 20 à 80 % en moles d'au moins un monomère du groupe constitué par les acides mono- ou dicarboxyliques en C3-C10 monoéthyléniquement insaturés ou leurs anhydrides,a12) 0 à 80 % en moles d'au moins un monomère de formule générale (I) dans laquelle R1, R2 et R3 signifient indépendamment les uns des autres H, CH3 ou C2H5,R4 signifie un radical linéaire, ramifié ou cyclique de 1 à 6 atomes de carbone ou un radical aromatique de 6 à 12 atomes de carbone, eta13) 0 à 20 % en moles d'au moins un monomère supplémentaire, choisi dans le groupe constitué par les oléfines de 10 atomes de carbone ou plus ou leurs mélanges et les polyisobutènes réactifs contenant en moyenne 12 à 100 atomes de carbone,a2) 5 à 95 % en poids de polycarboxylates modifiés hydrophiliquement II de a21) 50 à 99 % en moles d'acide acrylique et/ou d'un sel soluble dans l'eau de l'acide acrylique,a22) 0 à 50 % en moles d'un autre monomère acide et/ou d'un sel soluble dans l'eau de celui-ci,a23) 0,1 à 20 % en moles d'au moins un monomère non ionique de formule générale (II) dans laquelle les variables ont la signification suivante : R5 hydrogène ou méthyle, Z-C(O)O- ou -CH2O- R6 radicaux alkylène en C2-C4 non ramifiés ou ramifiés identiques ou différents,R7 alkyle en C1-C6 non ramifié ou ramifié,n 3 à 50,la somme de a1) et a2) étant de 100 % en poids, en tant que co-adjuvant dans des formulations de nettoyage pour le lavage de la vaisselle en machine. Verwendung eines Gemischs aus hydrophob modifizierten Polycarboxylaten und hydrophil modifizierten Polycarboxylaten aus a1) 5 bis 95 Gew.-% hydrophob modifizierten Polycarboxylaten (I) aus a11) 20 bis 80 mol-% mindestens eines Monomeren aus der Gruppe bestehend aus monoethylenisch ungesättigten C3-C10-Mono- oder Dicarbonsäuren oder deren Anhydriden,a12) 0 bis 80 mol-% mindestens eines Monomeren der allgemeinen Formel (I), worin R1, R2 und R3 unabhängig voneinander H, CH3 oder C2H5 bedeuten,R4 einen linearen, verzweigten oder cyclischen Rest mit 1 bis 6 Kohlenstoffatomen oder einen aromatischen Rest mit 6 bis 12 Kohlenstoffatomen bedeutet, unda13) 0 bis 20 mol-%, mindestens eines weiteren Monomeren, ausgewählt aus der Gruppe bestehend aus Olefinen mit 10 oder mehr Kohlenstoffatomen oder deren Gemischen und reaktiven Polyisobutenen mit im Mittel 12 bis 100 Kohlenstoffatomen,a2) 5 bis 95 Gew.-% hydrophil modifizierten Polycarboxylaten II aus a21) 50 bis 99 mol.-% Acrylsäure und/oder eines wasserlöslichen Salzes der Acrylsäure,a22) 0 bis 50 mol.-% eines weiteren sauren Monomers und/oder eines wasserlöslichen Salzes desselben,a23) 0,1 bis 20 mol.-% mindestens eines nichtionischen Monomers der allgemeinen Formel (II), in der die Variablen folgende Bedeutung haben: R5 Wasserstoff oder Methyl,Z -C(O)O- oder -CH2O-,R6 gleiche oder verschiedene unverzweigte oder verzweigte C2-C4-Alkylenreste,R7 unverzweigtes oder verzweigtes C1-C6-Alkyl,n 3 bis 50, wobei die Summe aus a1) und a2) 100 Gew.-% ergibt, als Co-Builder in Reinigungsformulierungen für die maschinelle Geschirrreinigung.
Independent claims5
80 paragraphs, as filed
The invention relates to cleaning formulations for machine dishwashing.
In the case of machine dishwashing, the dishes should be cleaned in a residue-free condition with an immaculately shiny surface. The dishes must be cleaned of food residues and the loosened dirt components must be dispersed or emulsified so that they do not deposit again on the surface of the dishes. Furthermore, there should also be no whitish stains or deposits that arise due to the presence of lime or other inorganic and organic salts when water droplets dry out or that are deposited during the rinsing process due to the deposition of dirt or inorganic salts.
In modern machine dishwashers in particular, the multifunctional cleaners (e.g. 3-in-1 cleaners), the functions of cleaning, rinsing and water softening are combined in a single detergent formulation, so that both the refilling of salt (with water hardness from 0 ° to 21 °) as well as rinse aid.
Polymers are often used in these dishwashing detergents to inhibit deposits. In phosphate-containing cleaners, these can be, for example, sulfonate-containing polymers, which in particular have effects on the inhibition of calcium phosphate deposits. The surfactants used are selected so that they drag into the rinse aid cycle and ensure optimum wetting and a good rinse aid result. Other common polymers are polycarboxylates such as polyacrylic acids.
The results achieved so far can still be improved. In particular, the trend towards phosphate-free cleaning agents, which will continue to be used without rinse aid and ion exchanger, requires new solutions. The composition of the resulting salts is different from that in phosphate-containing cleaners, so that other polymers have the best effect. Furthermore, when the ion exchanger is not used, polymers themselves can precipitate out as calcium salts. It is therefore necessary to use polymers which cannot themselves precipitate out as calcium salts under the rinsing conditions, but which are nevertheless able to disperse inorganic salts at the same time.
Many of the formulations on the market are phosphate-based. The phosphate used is ideal for the application, as it combines many useful properties that are required in machine dishwashing. On the one hand, phosphate is able to disperse water hardness (ie insoluble salts of ions causing water hardness such as calcium and magnesium ions). This task is also achieved via the ion exchanger of the machines. However, a large proportion of the products for machine dishwashing are now offered in the form of so-called 3-in-1 formulations, in which the function of the ion exchanger is no longer necessary. The phosphate usually takes over the softening of the water in combination with phosphonates. Furthermore, the phosphate disperses the detached dirt and thus prevents the dirt from settling again on the wash ware.
For ecological reasons, detergents have switched to completely phosphate-free systems in many countries. For the products for machine dishwashing, there is also discussion as to whether it makes sense to switch to phosphate-free products. However, the phosphate-free products that were still on the market in the mid-1990s no longer meet today's demands for washing results. Today, consumers can expect flawless, streak-free, deposit-free and drip-free dishes, preferably without the use of additional rinse aid or regeneration salt for the ion exchanger.
<patcit id="pcit0001" dnum="EP0778340A"><text>EP-A 0 778 340</text></patcit> describes the use of copolymers of allyl alcohol ethoxylates and acrylic acid in phosphate-free dishwashing detergent compositions.
<patcit id="pcit0002" dnum="WO2005042684A"><text>WO2005 / 042684</text></patcit> describes the use of special copolymers of acrylic acid, methacrylic acid and acrylic acid alkoxylates as scale-inhibiting additives in machine dishwashing.
<patcit id="pcit0003" dnum="WO2006029806A"><text>WO2006 / 029806</text></patcit> describes the use of a combination of special hydrophobically modified polycarboxylates and special complexing agents as a builder system in dishwashing cleaning formulations.
<patcit id="pcit0004" dnum="WO0234870A"><text>WO 02/34870</text></patcit> describes the combination of hydrophobically modified polycarboxylates, acrylic acid (co) polymers and phosphonates to achieve an antiscaling and an antispotting effect. Both phosphate-containing and phosphate-free dishwashing detergents are described.
The object of the invention is to provide improved phosphate-free cleaning formulations for machine dishwashing, which result in an improved washing result. The object of the invention is, in particular, to provide such formulations which, without the use of additional rinse aid, result in dishes which are free of streaks, deposits and drops.
The task is solved by phosphate-free cleaning formulations for machine dishwashing containing as components:<ol id="ol0001" ol-style=""><li>a) 1 to 20% by weight of a mixture of hydrophobically modified polycarboxylates a1) and hydrophilically modified polycarboxylates a2)<ul id="ul0001" list-style="none" compact="compact"><li>a1) 5 to 95% by weight of hydrophobically modified polycarboxylates I.<ul id="ul0002" list-style="none"><li>a11) 20 to 80 mol% of at least one monomer from the group consisting of monoethylenically unsaturated C.<sub>3</sub>-C<sub>10</sub>Mono- or dicarboxylic acids or their anhydrides,</li><li>a12) 0 to 80 mol% of at least one monomer of the general formula (I),<chemistry id="chem0001" num="0001"><img file="EP2201090B1_D0001.tif" /></chemistry><ul id="ul0003" list-style="none"><li>where R<sup>1</sup>, R<sup>2</sup> and R<sup>3</sup> independently of one another H, CH<sub>3</sub> or C<sub>2</sub>H<sub>5</sub> mean,</li><li>R<sup>4</sup> represents a linear, branched or cyclic radical having 1 to 6 carbon atoms or an aromatic radical having 6 to 12 carbon atoms,</li></ul>and</li><li>a13) 0 to 20 mol% of at least one further monomer selected from the group consisting of olefins having 10 or more carbon atoms or their mixtures and reactive polyisobutenes having an average of 12 to 100 carbon atoms,</li></ul></li><li>a2) 5 to 95% by weight of hydrophilically modified polycarboxylates II<ul id="ul0004" list-style="none"><li>a21) 50 to 99 mol% of acrylic acid and / or a water-soluble salt of acrylic acid,</li><li>a22) 0 to 50 mol% of a further acidic monomer and / or a water-soluble salt thereof,</li><li>a23) 0.1 to 20 mol% of at least one nonionic monomer of the general formula (II),<chemistry id="chem0002" num="0002"><img file="EP2201090B1_D0002.tif" /></chemistry>in which the variables have the following meaning:<ul id="ul0005" list-style="none"><li>R<sup>5</sup> Hydrogen or methyl;</li><li>Z -C (O) O- or -CH<sub>2</sub>O-</li><li>R<sup>6</sup> same or different unbranched or branched C<sub>2</sub>-C<sub>4</sub>Alkylene residues;</li><li>R<sup>7</sup> unbranched or branched C<sub>1</sub>-C<sub>6</sub>-Alkyl;</li><li>n 3 to 50,</li></ul></li></ul></li></ul>where the sum of a1) and a2) is 100% by weight,</li><li>b) 0 to 50% by weight of complexing agent,</li><li>c) 0.1 to 20% by weight of low-foaming nonionic surfactants,</li><li>d) 0.1 to 30% by weight of bleaching agent and optionally bleach activators,</li><li>e) 0 to 60% by weight of other builders,</li><li>f) 0 to 8% by weight of enzymes,</li><li>g) 0 to 50% by weight of one or more further additives, such as anionic or zwitterionic surfactants, bleaching catalysts, alkali carriers, corrosion inhibitors, defoamers, dyes, fragrances, fillers, tablet disintegrants, organic solvents and water,</li></ol>the sum of components a) to g) being 100% by weight.
The formulation can be processed as a tablet, powder, gel, capsule or solution. It can be formulations for household applications as well as for commercial applications.
The object is further achieved by using a combination of hydrophobically modified polycarboxylates a1) and hydrophilically modified polycarboxylates a2) as a co-builder in cleaning formulations for machine dishwashing.
It has been found that by using a combination of hydrophobically modified polycarboxylates and hydrophilically modified polycarboxylates in dishwashing detergents for machine dishwashing, both a very good deposit-inhibiting effect and a very good rinse aid (anti-spotting effect) are achieved.
Monomers a11) suitable for the hydrophobically modified polycarboxylates a1) are, for example, maleic acid, maleic anhydride, acrylic acid, methacrylic acid, fumaric acid, itaconic acid and citraconic acid. Preferred hydrophobically modified polycarboxylates a1) contain as monomers a11) monomers which are selected from the group consisting of maleic acid, maleic anhydride and acrylic acid.
Suitable monomers a12) are, for example, isobutene, diisobutene, butene, pentene, hexene and styrene. Further preferred hydrophobically modified polycarboxylates a1) contain as monomers a12) monomers which are selected from the group consisting of isobutene, diisobutene and styrene.
Suitable monomers a13) have at least 10, generally 10-26, carbon atoms. Suitable monomers a13) are, for example, 1-decene, 1-dodecane, 1-tetradecene, 1-hexadecene, 1-octadene, 1-eicose, 1-docose, 1-tetracose and 1-hexacose. Further preferred hydrophobically modified polycarboxylates a1) contain as monomers a13) monomers which are selected from the group consisting of 1-dodecene, 1-octadecene, C<sub>22</sub>-alpha-olefin, a mixture of C<sub>20</sub>-C<sub>24</sub>-alpha-olefins and polyisobutene with an average of 12 to 100 carbon atoms.
Particularly preferred hydrophobically modified polycarboxylates contain both monomers a11), which are selected from maleic acid, maleic anhydride and acrylic acid, and monomers a12), which are selected from isobutene, diisobutene and styrene, and also monomers a13), which are selected from the group consisting of from 1-dodecene, 1-octadecene, C<sub>22</sub>-alpha-olefin, a mixture of C<sub>20</sub>-C<sub>24</sub>-alpha-olefins and polyisobutene with an average of 12 to 100 carbon atoms. Copolymers of 30 to 70 mol% of maleic acid and maleic anhydride as monomers a11), 30 to 50 mol% of isobutene as monomers a12) and 1 to 10 mol% of octadecene as monomers a13) are particularly preferred.
The hydrophilically modified polycarboxylates II contain as copolymerized components a21) and a22) acrylic acid, optionally another acidic monomer, and / or water-soluble salts of these acids, in particular the alkali metal salts, such as potassium and especially sodium salts, and ammonium salts.
The proportion of acrylic acid a21) in the hydrophilically modified polycarboxylates II is 50 to 99 mol%, preferably 55 to 90 mol% and particularly preferably 60 to 85 mol%.
The further acidic monomer a22) in the hydrophilically modified polycarboxylates II is 0 to 50 mol%, preferably 5 to 40 mol%, particularly preferably 10 to 35 mol% and especially 15 to 30 mol. -% contain.
Acidic monomers a22) are, for example, methacrylic acid, maleic acid, sulfonate groups or monomers containing phosphonate groups; methacrylic acid and maleic acid are preferred.
The following may be mentioned as particularly suitable examples of the nonionic monomers (a23): Allyl alcohol, 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) methacrylate, ethoxypolyypropylene glycol (meth) acrylate, (propylene oxide-co-ethylene oxide) (meth) acrylate, whereby methoxypolyethylene glycol (meth) acrylate and methoxypolypropylene glycol (meth) acrylate are preferred and methoxypolyethylene glycol methacrylate is particularly preferred.
The polyalkylene glycols contain 3 to 50, especially 5 to 40 and especially 10 to 30 alkylene oxide units.
The proportion of nonionic monomers a23) in the hydrophilically modified polycarboxylates II is 0.1 to 20 mol%, preferably 1 to 15 mol% and especially 2 to 10 mol%.
Preferred hydrophilically modified polycarboxylates a2) are also from<ul id="ul0006" list-style="none"><li>a21) 50 to 99 mol% of acrylic acid and / or a water-soluble salt of acrylic acid,</li><li>a22) 0 to 50 mol% of maleic acid and / or a water-soluble salt of maleic acid,</li><li>a23) 0.1 to 20 mol% of allyl alcohol which is ethoxylated with 3 to 50 mol of ethylene oxide per mol of allyl alcohol,</li></ul>built up.
The ethoxylated allyl alcohol a23) is preferably alkoxylated with 5 to 40 mol, particularly preferably with 10 to 30 mol, of ethylene oxide.
The weight average molecular weight M<sub>w</sub> The hydrophilically modified polycarboxylate a2) is generally 500 to 500,000 g / mol, preferably 1000 to 300,000 g / mol, particularly preferably 5,000 to 100,000 g / mol.
The hydrophilically modified polycarboxylates preferably have a calcium insensitivity which has a cloud point of a solution containing 250 mg / L of the hydrophilically modified polymer at pH 10 at a calcium concentration of> 2000 mg / L Ca.<sup>2+</sup> corresponds, that is, only above this calcium concentration does the polymer solution become cloudy due to the precipitation of calcium salts.
The cleaning formulations according to the invention contain 1 to 20% by weight, preferably 1 to 10% by weight, of the mixture of hydrophobically modified polycarboxylates a1) and hydrophilically modified polycarboxylates a2), the proportion of hydrophobically modified polycarboxylates a1) being 5 to 95% by weight. %, preferably 10 to 90% by weight and particularly preferably 20 to 80% by weight, and the proportion of hydrophilically modified polycarboxylates a2) 5 to 95% by weight, preferably 10 to 90 wt .-% and particularly preferably 20 to 80 wt .-%, based on the sum of a1) and a2).
The cleaning formulations according to the invention can contain one or more complexing agents as component b). Preferred complexing agents are selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and methylglycinediacetic acid, glutamic acid diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, ethylenediamine acetic acid, as well as ethylenediamine acetic acid, aspartic acid, and ethylenediamine acetic acid as well as salic acid acid, aspartic acid and acetic acid. Particularly preferred complexing agents b) are methylglycinediacetic acid and its salts.
The cleaning formulations according to the invention contain low or low-foaming nonionic surfactants as component c). These are generally present in proportions of 0.1 to 20% by weight, preferably 0.1 to 15% by weight, particularly preferably 0.25 to 10% by weight.
Suitable nonionic surfactants include the surfactants of the general formula (III) R<sup>2</sup>-O- (CH<sub>2</sub>CH<sub>2</sub>O)<sub>p</sub>- (CHR<sup>1</sup>CH<sub>2</sub>O)<sub>m</sub>-R<sup>3</sup> (III)<ul id="ul0007" list-style="none" compact="compact"><li>where R<sup>2</sup> is a linear or branched alkyl radical with 8 to 22 carbon atoms,</li><li>R<sup>1</sup> and R<sup>3</sup> are independently hydrogen or a linear or branched alkyl radical having 1-10 C atoms or H, where R<sup>1</sup> is preferably methyl,</li><li>p and m are independently 0 to 300. Preferably p = 1-100 and</li><li>m = 0-30.</li></ul>
The surfactants of the formula (III) can be either random copolymers or block copolymers, and are preferably block copolymers.
Di- and multiblock copolymers, built up from ethylene oxide and propylene oxide, can also be used, for example under the name Pluronic<sup>®</sup> (BASF Aktiengesellschaft) or Tetronic<sup>®</sup> (BASF Corporation) are commercially available. Reaction products of sorbitan esters with ethylene oxide and / or propylene oxide can also be used. Amine oxides or alkyl glycosides are also suitable. An overview of suitable nonionic surfactants is given by<patcit id="pcit0005" dnum="EP851023A"><text>EP-A 851 023</text></patcit> as well as the <patcit id="pcit0006" dnum="DE19819187A"><text>DE-A 198 19 187</text></patcit>.
The formulations may also contain anionic or zwitterionic surfactants, preferably in a mixture with nonionic surfactants. Suitable anionic and zwitterionic surfactants are also in<patcit id="pcit0007" dnum="EP851023A"><text>EP-A 851 023</text></patcit> such as <patcit id="pcit0008" dnum="DE19819187A"><text>DE-A 198 19 187</text></patcit> called.
The cleaning formulations according to the invention contain bleaching agents and optionally bleach activators as component d).
Bleaching agents are divided into oxygen bleaching agents and bleaching agents containing chlorine. Alkali metal perborates and their hydrates and alkali metal percarbonates are used as oxygen bleaching agents. Preferred bleaching agents are sodium perborate in the form of the mono- or tetrahydrate, sodium percarbonate or the hydrates of sodium percarbonate.
Persulphates and hydrogen peroxide can also be used as oxygen bleaches.
Typical oxygen bleaches are also organic peracids such as perbenzoic acid, peroxy-alpha-naphthoic acid, peroxylauric acid, peroxystearic acid, phthalimidoperoxycaproic acid, 1,12-diperoxydodecanedioic acid, 1,9-diperoxyazelaic acid, diperoxoisophthalic acid or 2-decyldiperoxy acid butane.
The following oxygen bleaches can also be used in the cleaner formulation:
Cationic peroxyacids mentioned in the patent applications <patcit id="pcit0009" dnum="US5422028A"><text>US 5,422,028</text></patcit>, <patcit id="pcit0010" dnum="US5294362A"><text>US 5,294,362</text></patcit> such as <patcit id="pcit0011" dnum="US5292447A"><text>US 5,292,447</text></patcit> are described; Sulfonylperoxyacids described in the patent application <patcit id="pcit0012" dnum="US5039447A"><text>US 5,039,447</text></patcit> are described.
Oxygen bleaching agents are used in amounts of generally 0.5 to 30% by weight, preferably 1 to 20% by weight, particularly preferably 3 to 15% by weight, based on the total detergent formulation.
Chlorine-containing bleaches and the combination of chlorine-containing bleaches with peroxide-containing bleaches can also be used. Known chlorine-containing bleaches are, for example, 1,3-dichloro-5,5-dimethylhydantoin, N-chlorosulfamide, chloramine T, dichloramine T, chloramine B, N, N'-dichlorobenzoyl urea, p-toluenesulfone dichloroamide or trichloroethylamine. Preferred chlorine-containing bleaches are sodium hypochlorite, calcium hypochlorite, potassium hypochlorite, magnesium hypochlorite, potassium dichloroisocyanurate or sodium dichloroisocyanurate.
Chlorine-containing bleaching agents are used in amounts of generally 0.1 to 20% by weight, preferably 0.2 to 10% by weight, particularly preferably 0.3 to 8% by weight, based on the total detergent formulation .
Bleach stabilizers such as phosphonates, borates, metaborates, metasilicates or magnesium salts can also be added in small amounts.
Bleach activators are compounds which, under perhydrolysis conditions, give aliphatic peroxocarboxylic acids with preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or substituted perbenzoic acid. Compounds which contain one or more N- or O-acyl groups and / or optionally substituted benzoyl groups are suitable, for example substances from the class of anhydrides, esters, imides, acylated imidazoles or oximes. Examples are tetraacetylethylenediamine (TAED), tetraacetylmethylenediamine (TAMD), tetraacetylglycoluril (TA-GU), tetraacetylhexylenediamine (TAHD), N-acylimides, such as N-nonanoylsuccinimide (NOSI), acylated phenol nonononoyl (nonyl sulfonate) such as nolonsulfononol, such as nolonsulfonate such as - or iso-NOBS), pentaacetyl glucose (PAG), 1,5-diacetyl-2,2-dioxohexahydro-1,3,5-triazine (DADHT) or isatoic anhydride (ISA). Also suitable as bleach activators are nitrile quats such as, for example, N-methyl-morpholinium-acetonitrile salts (MMA salts) or trimethylammonium acetonitrile salts (TMAQ salts).
Bleach activators from the group consisting of multiply acylated alkylenediamines, particularly preferably TAED, N-acylimides, particularly preferably NOSI, acylated phenolsulfonates, particularly preferably n- or iso-NOBS, MMA and TMAQ, are preferably suitable.
The following substances can also be used as bleach activators in the detergent formulation:<ul id="ul0008" list-style="none"><li>Carboxylic anhydrides such as phthalic anhydride; acylated polyhydric alcohols such as triacetin, ethylene glycol diacetate or 2,5-diacetoxy-2,5-dihydrofuran; from<patcit id="pcit0013" dnum="DE19616693A"><text>DE-A 196 16 693</text></patcit> and <patcit id="pcit0014" dnum="DE19616767A"><text>DE-A 196 16 767</text></patcit> known enol esters and acetylated sorbitol and mannitol and their in <patcit id="pcit0015" dnum="EP525239A"><text>EP-A 525 239</text></patcit> described mixtures; acylated sugar derivatives, in particular pentaacetylglucose (PAG), pentaacetylfructose, tetraacetylxylose and octaacetyllactose, as well as acetylated, optionally N-alkylated, glucamine and gluconolactone, and / or N-acylated lactams, for example N-benzoylcaprolactam, from the<patcit id="pcit0016" dnum="WO9427970A"><text>WO 94/27 970</text></patcit>, <patcit id="pcit0017" dnum="WO9428102A"><text>WO 94/28 102</text></patcit>, <patcit id="pcit0018" dnum="WO9428103A"><text>WO 94/28 103</text></patcit>, <patcit id="pcit0019" dnum="WO9500626A"><text>WO 95/00 626</text></patcit>, <patcit id="pcit0020" dnum="WO9514759A"><text>WO 95/14 759</text></patcit> such as <patcit id="pcit0021" dnum="WO9517498A"><text>WO 95/17 498</text></patcit> are known;</li><li>in the <patcit id="pcit0022" dnum="DE19616769A"><text>DE-A 196 16 769</text></patcit> listed hydrophilically substituted acylacetals and those in <patcit id="pcit0023" dnum="DE19616770A"><text>DE-A 196 16 770</text></patcit> and <patcit id="pcit0024" dnum="WO9514075A"><text>WO 95/14 075</text></patcit> Acyllactams described can, as well as those from <patcit id="pcit0025" dnum="DE4443177A"><text>DE-A 44 43 177</text></patcit> known combinations of conventional bleach activators can be used.</li></ul>
Bleach activators are used in amounts of generally 0.1 to 10% by weight, preferably 1 to 9% by weight, particularly preferably 1.5 to 8% by weight, based on the total detergent formulation.
The cleaning formulations according to the invention can contain further builders as component e). Water-soluble and water-insoluble builders can be used, the main task of which is to bind calcium and magnesium.
Other builders that can be used are:<ul id="ul0009" list-style="none" compact="compact"><li>low molecular weight carboxylic acids and their salts such as alkali citrates, in particular anhydrous trisodium citrate or trisodium citrate dihydrate, alkali succinates, alkali malonates, fatty acid sulfonates, oxydisuccinate, alkyl or alkenyl disuccinates, gluconic acids, oxadiacetate, taroxymuccinate trinate trinate, taroxate trinate acetate,</li><li>oxidized starches, oxidized polysaccharides;</li><li>homo- and copolymeric polycarboxylic acids and their salts such as polyacrylic acid, polymethacrylic acid, copolymers of maleic acid and acrylic acid;</li><li>Graft polymers of monoethylenically unsaturated mono- and / or dicarboxylic acids on monosaccharides, oligosaccharides, polysaccharides or polyaspartic acid; Aminopolycarboxylates and polyaspartic acid;</li><li>Phosphonates such as 2-phosphono-1,2,4-butane tricarboxylic acid, aminotri (methylenephosphonic acid), 1-hydroxyethylene (1,1-diphosphonic acid), ethylenediaminetetramethylenephosphonic acid, hexamethylenediaminetetramethylenephosphonic acid or diethylenetriaminepentamethylenephosphonic acid;</li><li>Silicates such as sodium disilicate and sodium metasilicate;</li><li>water-insoluble builders such as zeolites and crystalline layered silicates.</li></ul>
The cleaning formulations according to the invention can contain enzymes as component f). Between 0 and 8% by weight of enzymes, based on the entire preparation, can be added to the cleaning agent in order to increase the performance of the cleaning agents or to guarantee cleaning performance of the same quality under milder conditions. The most commonly used enzymes include lipases, amylases, cellulases and proteases. Esterases, pectinases, lactases and peroxidases can also be used, for example.
The cleaning agents according to the invention can also contain, as component g), other additives such as anionic or zwitterionic surfactants, bleaching catalysts, alkali carriers, corrosion inhibitors, defoamers, dyes, fragrances, fillers, tablet disintegrants, organic solvents and water.
In addition to the conventional bleach activators listed above or in their place, they can also be used <patcit id="pcit0026" dnum="EP446982A"><text>EP-A 446 982</text></patcit> and <patcit id="pcit0027" dnum="EP453003A"><text>EP-A 453 003</text></patcit> Known sulfonimines and / or bleach-enhancing transition metal salts or transition metal complexes may be contained in the cleaning formulations according to the invention as so-called bleaching catalysts.
The transition metal compounds in question include, for example, those from <patcit id="pcit0028" dnum="DE19529905A"><text>DE-A 195 29 905</text></patcit> known manganese, iron, cobalt, ruthenium or molybdenum salt complexes and their <patcit id="pcit0029" dnum="DE19620267A"><text>DE-A 196 20 267</text></patcit> known N-analog connections, which <patcit id="pcit0030" dnum="DE19536082A"><text>DE-A 195 36 082</text></patcit> known manganese, iron, cobalt, ruthenium or molybdenum carbonyl complexes, which in <patcit id="pcit0031" dnum="DE19605688A"><text>DE-A 196 05 688</text></patcit> described manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands, which consist of <patcit id="pcit0032" dnum="DE19620411A"><text>DE-A 196 20 411</text></patcit> known cobalt, iron, copper and ruthenium amine complexes, which in <patcit id="pcit0033" dnum="DE4416438A"><text>DE-A 44 16 438</text></patcit> described manganese, copper and cobalt complexes, which in <patcit id="pcit0034" dnum="EP272030A"><text>EP-A 272 030</text></patcit> described cobalt complexes that <patcit id="pcit0035" dnum="EP693550A"><text>EP-A 693 550</text></patcit> well-known manganese complexes that from <patcit id="pcit0036" dnum="EP392592A"><text>EP-A 392 592</text></patcit> known manganese, iron, cobalt and copper complexes and / or those in <patcit id="pcit0037" dnum="EP443651A"><text>EP-A 443 651</text></patcit>, <patcit id="pcit0038" dnum="EP458397A"><text>EP-A 458 397</text></patcit>, <patcit id="pcit0039" dnum="EP458398A"><text>EP-A 458 398</text></patcit>, <patcit id="pcit0040" dnum="EP549271A"><text>EP-A 549 271</text></patcit>, <patcit id="pcit0041" dnum="EP549272A"><text>EP-A 549 272</text></patcit>, <patcit id="pcit0042" dnum="EP544490A"><text>EP-A 544 490</text></patcit> and <patcit id="pcit0043" dnum="EP544519A"><text>EP-A 544 519</text></patcit> described manganese complexes. Combinations of bleach activators and transition metal bleach catalysts are, for example, from<patcit id="pcit0044" dnum="DE19613103A"><text>DE-A 196 13 103</text></patcit> and <patcit id="pcit0045" dnum="WO9527775A"><text>WO 95/27 775</text></patcit> known.
Binuclear manganese complexes containing 1,4,7-trimethyl-1,4,7-triazacyclononane (TMTACN), such as [(TMTACN)<sub>2</sub>Mn<sup>IV</sup>Mn<sup>IV</sup>(µ-O)<sub>3</sub>]<sup>2+</sup>(PF<sub>6</sub><sup>-</sup>)<sub>2</sub> are also suitable as effective bleaching catalysts. These manganese complexes are also described in the publications mentioned above.
Suitable bleaching catalysts are preferably bleach-enhancing transition metal complexes or salts from the group consisting of the manganese salts and complexes and the cobalt salts and complexes. The cobalt (amine) complexes, the cobalt (acetate) complexes, the cobalt (carbonyl) complexes, the chlorides of cobalt or manganese, manganese sulfate or [(TMTACN) are particularly preferred.<sub>2</sub>Mn<sup>IV</sup>Mn<sup>IV</sup>(µ-O)<sub>3</sub>]<sup>2+</sup>(PF<sub>6</sub><sup>-</sup>)<sub>2</sub>.
Bleaching catalysts can be used in amounts of 0.0001 to 5% by weight, preferably 0.0025 to 1% by weight, particularly preferably 0.01 to 0.25% by weight, based on the total detergent formulation .
Alkali carriers can be present as further components of the cleaning formulation. Alkali carriers are ammonium and / or alkali metal hydroxides, ammonium and / or alkali metal carbonates, ammonium and / or alkali metal hydrogen carbonates, ammonium and / or alkali metal sesquicarbonates, ammonium and / or alkali silicates, ammonium and / or alkali metal silicates, and mixtures of the above-mentioned substances and mixtures of the above ammonium and / or alkali carbonates, in particular sodium carbonate, sodium hydrogen carbonate or sodium sesquicarbonate, are preferably used.
Silver inhibitors from the group of the triazoles, the benzotriazoles, the bisbenzotriazoles, the aminotriazoles, the alkylaminotriazoles and the transition metal salts or complexes can be used as corrosion inhibitors. Benzotriazole and / or alkylaminotriazole are particularly preferably to be used. In addition, active chlorine-containing agents are often used in cleaner formulations, which can significantly reduce the corrosion of the silver surface. In chlorine-free cleaners, oxygen and nitrogen-containing organic redox-active compounds such as di- and trihydric phenols, for example hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, phloroglucinol, pyrogallol and derivatives of these classes of compounds, are preferably used. Salt-like and complex-like inorganic compounds such as salts of the metals Mn, Ti, Zr Hf, V, Co and Ce are also frequently used. The transition metal salts which are selected from the group of the manganese and / or cobalt salts and / or complexes are preferred, particularly preferably from the group of the cobalt (amine) complexes, the cobalt (acetate) complexes, the cobalt (carbonyl) ) Complexes, the chlorides of cobalt or manganese and manganese sulfate. Zinc compounds or bismuth compounds can also be used to prevent corrosion on the wash ware.
Paraffin oils and silicone oils can optionally be used as defoamers and to protect plastic and metal surfaces. Defoamers are generally used in proportions of 0.001% by weight to 5% by weight. In addition, dyes such as patent blue, preservatives such as Kathon CG, perfumes and other fragrances can be added to the cleaning formulation according to the invention.
A suitable filler is, for example, sodium sulfate.
The invention is illustrated by the following examples.
Examples
Example and comparative examples V1 to V5
To test the copolymers according to the invention, they were each added to a phosphate-free dishwashing detergent formulation which had the following composition.
Dishwashing formulation
<dl id="dl0001"><dt>1.2% by weight</dt><dd>enzyme</dd><dt>3rd % By weight</dt><dd>Surfactant based on fatty alcohol alkoxylates</dd><dt>7 % By weight</dt><dd>a combination of hydrophobically modified and hydrophilically modified polycarboxylate</dd><dt>14 % By weight</dt><dd>Percarbonate</dd><dt>4th % By weight</dt><dd>TAED</dd><dt>12th % By weight</dt><dd>Disilicate</dd><dt>18.8% by weight</dt><dd>sodium</dd><dt>38 % By weight</dt><dd>Citrate</dd><dt>2nd % By weight</dt><dd>sulfate</dd></dl>
The following polymers were used:<ul id="ul0010" list-style="none"><li>Polymer 1: copolymer of maleic acid and diisobutene (weight ratio 51:49) with a molecular weight of 12,000 g / mol;</li><li>Polymer 2: copolymer of maleic anhydride, isobutene and C18 olefin (weight ratio 65: 26: 9), molecular weight 3,000 g / mol;</li><li>Polymer 3: polyacrylic acid, molecular weight 4000 g / mol;</li><li>Polymer 4: copolymer of acrylic acid, maleic acid and allyl alcohol, ethoxylated with 16.6 mol of ethylene oxide per mol of allyl alcohol, in a molar ratio of 82.5: 15: 2.5, with a K value of 74.5 at pH 7 in 1% by weight. -% solution at 25 ° C;</li><li>Polymer 5: copolymer of acrylic acid, methacrylic acid and methoxypolyethylene glycol methacrylate with Mw = 1100 g / mol in a molar ratio of 11: 4: 1 with a K value of 27.2 at pH 7 in a 1% strength by weight solution at 25 ° C.</li></ul>
In the rinsing experiments described below, 21 g of the detergent formulation were used in each case.
50 g of ballast dirt each, according to SÖFW-Journal, 122nd year, 03/06, p. 65, were put in the dishwasher at the beginning of the experiment. The test was carried out under the washing conditions below.
Rinsing conditions:
<dl id="dl0002" compact="compact"><dt>Dishwasher:</dt><dd>Miele G 686 SC</dd><dt>Rinse cycles:</dt><dd>2nd Rinse cycles 55 ° C normal (without pre-rinsing)</dd><dt>Washware:</dt><dd>Knives (WMF table knife Berlin, monoblock) and barrel shaped glass beakers (Matador, Ruhr Kristall),</dd><dt>Dishwashing liquid:</dt><dd>21 G</dd><dt>Addition of dirt</dt><dd>50 g Ballast dirt at the beginning</dd><dt>Rinse aid temperature:</dt><dd>65 ° C</dd><dt>Water hardness:</dt><dd>21 ° dH (Ca: Mg: HCO<sup>3-</sup> = 4 : 1 : 8)</dd></dl>
The items to be washed were assessed 18 hours after cleaning by visual inspection in a black lacquered light box with halogen spot and pinhole. The toppings on knives and glasses were rated on a scale from 10 (very good) to 1 (very bad). The maximum grade 10 corresponds to a surface free of deposits, from marks <5, coverings are already recognizable with normal room lighting, so they are perceived as disturbing.
The spotting was carried out after an evaluation of 1-5 with 1 = a very large number of spots to 5 = no spotting.
The test results obtained are summarized in the table below.<tables id="tabl0001" num="0001"><table frame="all"><title>Table: Results of the rinsing tests</title><tgroup cols="6"><colspec colnum="1" colname="col1" colwidth="17mm" /><colspec colnum="2" colname="col2" colwidth="22mm" /><colspec colnum="3" colname="col3" colwidth="25mm" /><colspec colnum="4" colname="col4" colwidth="28mm" /><colspec colnum="5" colname="col5" colwidth="24mm" /><colspec colnum="6" colname="col6" colwidth="28mm" /><thead><row><entry valign="top">example</entry><entry valign="top">polymer</entry><entry valign="top">Topping knife</entry><entry valign="top">Spotting knife</entry><entry valign="top">Topping glasses</entry><entry valign="top">Spotting glasses</entry></row></thead><tbody><row rowsep="0"><entry align="center">V1</entry><entry align="center">7 % By weight</entry><entry align="center">5</entry><entry align="center">5</entry><entry align="center">4,5</entry><entry align="center">4,5</entry></row><row><entry align="center" /><entry align="center">Polymer 2</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center">V2</entry><entry align="center">7 % By weight</entry><entry align="center">7</entry><entry align="center">3</entry><entry align="center">6,5</entry><entry align="center">1,5</entry></row><row><entry align="center" /><entry align="center">Polymer 5</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center">V3</entry><entry align="center">7 % By weight</entry><entry align="center">5</entry><entry align="center">3</entry><entry align="center">2</entry><entry align="center">2</entry></row><row><entry align="center" /><entry align="center">Polymer 1</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center">V4</entry><entry align="center">7 % By weight</entry><entry align="center">5,7</entry><entry align="center">1</entry><entry align="center">7</entry><entry align="center">2</entry></row><row><entry align="center" /><entry align="center">Polymer 4</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center">1</entry><entry align="center">5 % By weight</entry><entry align="center">6,3</entry><entry align="center">5</entry><entry align="center">6,0</entry><entry align="center">4</entry></row><row rowsep="0"><entry align="center" /><entry align="center">Polymer 2,</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center" /><entry align="center">2nd % By weight</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row><entry align="center" /><entry align="center">Polymer 5</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center">V5</entry><entry align="center">3.5% by weight</entry><entry align="center">4,5</entry><entry align="center">2</entry><entry align="center">4,5</entry><entry align="center">2</entry></row><row rowsep="0"><entry align="center" /><entry align="center">Polymer 1,</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row rowsep="0"><entry align="center" /><entry align="center">3.5% by weight</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row><row><entry align="center" /><entry align="center">Polymer 3</entry><entry align="center" /><entry align="center" /><entry align="center" /><entry align="center" /></row></tbody></tgroup></table></tables>
As can be seen from the table, the best results are achieved with the polymer combination according to the invention.
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| Document | Relation | Office | Cited during |
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| US10745651B2 | Cited by | United States of America | Applicant |
| US9683203B2 | Cited by | United States of America | Applicant |
| US11339354B2 | Cited by | United States of America | Applicant |
11 priority claims, no other members on record
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| 07118356 | European Patent Office (EPO) | A | |
| 07118356 | European Patent Office (EPO) | A | |
| 07118356 | European Patent Office (EPO) | – | |
| 08839722 | European Patent Office (EPO) | A | |
| 2008063646 | European Patent Office (EPO) | W | |
| 2008063646 | European Patent Office (EPO) | W | |
| 07118356 | – | – | – |
| EP20070118356 | – | – | – |
| EP2008063646 | – | – | – |
| EP20080839722 | – | – | – |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| Lapsed because of non-payment of the annual feeLapsedV1 | V1 | NL | |
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| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
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| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
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| Translation of ep patentT3 | T3 | PL | |
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| Definitive protectionFG2A | FG2A | ES | |
| Translation filed for an european patent granted for nl, confirming art. 52 par. 1 or 6 of the patents act 1995GrantedT3 | T3 | NL | |
| Translation of granted ep patentGrantedTRGR | TRGR | SE | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| European patents granted designating irelandGrantedLANGUAGE OF EP DOCUMENT: GERMANFG4D | FG4D | IE | |
| Designated contracting statesAK | AK | EP | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| European patent grantedGrantedNOT ENGLISHFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
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| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 2201090
- Publication, DOCDB
- 2201090
- Publication, EPODOC
- EP2201090
- Application
- 8839722
- Application, DOCDB
- 08839722
- Application, EPODOC
- EP20080839722
Titles3
- German
- GESCHIRRREINIGUNGSFORMULIERUNGEN ENTHALTEND EIN GEMISCH AUS HYDROPHOB MODIFIZIERTEN POLYCARBOXYLATEN UND HYDROPHIL MODIFIZIERTEN POLYCARBOXYLATEN
- English
- DISHWASHING FORMULATION COMPRISING A MIXTURE OF HYDROPHOBICALLY MODIFIED POLYCARBOXYLATES AND HYDROPHILICALLY MODIFIED POLYCARBOXYLATES
- French
- FORMULATIONS DE DÉTERGENTS POUR LA VAISSELLE, CONTENANT UN MÉLANGE DE POLYCARBOXYLATES À MODIFICATION HYDROPHOBE ET DE POLYCARBOXYLATES À MODIFICATION HYDROPHILE
Classification
- CPC, 6
- C11D3/3757
- C11D1/72
- C11D3/33
- C11D3/3905
- C11D3/40
- C11D3/50
- IPC, 1
- C11D3 37
Designated states34
- Contracting states, 34
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Croatia
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Latvia
- Monaco
and 10 moreShow fewer
- Malta
- Netherlands (Kingdom of the)
- Norway
- Poland
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye