EP2723844A1 - Détergents pour vaisselle avec protection de décor améliorée - Google Patents

Détergents pour vaisselle avec protection de décor améliorée

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Publication number
EP2723844A1
EP2723844A1 EP12724981.1A EP12724981A EP2723844A1 EP 2723844 A1 EP2723844 A1 EP 2723844A1 EP 12724981 A EP12724981 A EP 12724981A EP 2723844 A1 EP2723844 A1 EP 2723844A1
Authority
EP
European Patent Office
Prior art keywords
zinc
dishwashing detergent
acid
machine dishwashing
polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12724981.1A
Other languages
German (de)
English (en)
Other versions
EP2723844B1 (fr
Inventor
Thomas Eiting
Nina Mussmann
Thorsten Bastigkeit
Konstantin Benda
Arnd Kessler
Clarissa MAISEY
Dominique SCHUL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to PL12724981T priority Critical patent/PL2723844T3/pl
Publication of EP2723844A1 publication Critical patent/EP2723844A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/168—Organometallic compounds or orgometallic complexes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C11D3/3776—Heterocyclic compounds, e.g. lactam

Definitions

  • the present application describes automatic dishwashing detergents as well as automatic dishwashing processes using these dishwashing detergents as well as the use of these dishwashing detergents for reducing glass and porcelain corrosion and / or for improving decor protection.
  • Dishwashing detergents are available to the consumer in a variety of forms.
  • the automatic dishwashing detergents have gained great importance with the spread of household dishwashers. These automatic dishwashing detergents are the consumer
  • One of the major objectives of the machine cleaners manufacturers is to improve the cleaning and rinse performance of these compositions, with more emphasis being placed recently on the cleaning and rinse performance in low temperature or reduced water consumption cleaning cycles.
  • the means advantageously fulfill additional functions.
  • the improved glass, porcelain and / or Decor protection properties should preferably also in low-temperature cleaning operations, ie in cleaning processes with Spülflottentemperaturen of 50 ° C or below and / or in short-term cleaning process, especially in cleaning process with a duration of less than 60 minutes achieved can be.
  • the improved glass, porcelain and / or decor protection properties should furthermore preferably be given even with high alkalinity and / or in the presence of strong complexing agents.
  • the object according to the invention was achieved by a dishwashing agent which, in addition to a zinc salt, additionally contains a polymer comprising N-containing heterocycles.
  • the polymer is preferably a polyvinylpyrrolidone.
  • a first subject of the present invention are therefore automatic dishwashing detergents, characterized in that they comprise at least one zinc salt and at least one polymer comprising N-containing heterocycles, wherein the polymer containing N-containing heterocycles is preferably a polyvinylpyrrolidone.
  • the polymer in particular the
  • Polyvinylpyrrolidone may be branched or linear. In a preferred
  • the polymer in particular the polyvinylpyrrolidone, in branched and crosslinked form, in particular in the form of particles before.
  • the polymer particles in particular the polyvinylpyrrolidone particles (PVP particles), preferably have an average particle diameter of 100 to 150 ⁇ m.
  • Another object of the present invention is also a machine dishwashing process using the dishwashing detergent according to the invention, in particular for the protection of the treated glass and porcelain ware, especially for the reduction of glass and
  • the dishwashing process is preferably carried out at a liquor temperature below 60 ° C, preferably below 50 ° C.
  • the dishwashing process takes a maximum of 90 minutes, in particular a maximum of 75 minutes, more preferably a maximum of 60 minutes.
  • the dishwashing process lasts for a maximum of 50, 40, or 30 minutes.
  • Another object of the present invention is the use of a combination of a zinc salt and a polymer containing N-containing heterocycles, to effect improved glass, porcelain and / or decor protection or to reduce glass and porcelain corrosion and / or to reduce the decor removal or to reduce the fading of the decoration, wherein the polymer is preferably a polyvinylpyrrolidone.
  • a combination of zinc salt and N-containing heterocycle-containing polymer in this case preferably a dishwashing agent according to the invention is used.
  • the decor whose removal or its fading is reduced, is preferably located on a glass or porcelain surface.
  • the present application relates to automatic dishwashing detergents.
  • Automatic dishwashing detergents are compositions which are used to clean soiled dishes in a dishwashing process can be.
  • the automatic dishwasher detergents according to the invention differ, for example, from the machine rinse aid agents, which are always used in combination with automatic dishwashing detergents and do not develop their own cleaning action.
  • the automatic dishwashing agents according to the invention can be in solid or liquid form. In a preferred embodiment, they are in powdered, granulated or compressed form.
  • the automatic dishwashing compositions according to the invention are present in a particularly preferred embodiment as a shaped body, preferably as a compact, in particular as a tablet. However, they may also be present in combination with other forms of supply, in particular in combination with solid forms such as powders, granules or extrudates or in combination with liquid formulations based on water and / or organic solvents.
  • Inventive agents can be formulated as single-phase or multi-phase products.
  • Machine dishwashing detergents with one, two, three or four phases are particularly preferred.
  • Machine dishwashing detergents, characterized in that they are in the form of a prefabricated dosing unit with two or more phases, are particularly preferred.
  • Particularly preferred are in particular two- or multi-phase tablets, for example
  • Two-layer tablets in particular two-layer tablets with a trough and a molded body located in the trough.
  • Automatic dishwasher detergents according to the invention are preferably prefabricated to form metering units. These metering units preferably comprise the necessary for a cleaning cycle amount of washing or cleaning-active substances. Preferred metering units have a weight between 12 and 30 g, preferably between 14 and 26 g and in particular between 15 and 22 g.
  • the volume of the aforementioned metering units and their spatial form are selected with particular preference so that a metering of the prefabricated units on the
  • the volume of the dosing unit is therefore preferably between 10 and 35 ml, preferably between 12 and 30 ml and in particular between 15 and 25 ml.
  • the pH of a 10% strength solution of a dishwasher according to the invention in distilled water is preferably between 7 and 13, particularly preferably between 8 and 12, in particular between 9 and 11 ,
  • Dosing units most preferably have a water-soluble coating.
  • Dishwashing agents comprise at least one polymer containing N-containing
  • heterocycles Preferably, at least 20%, in particular at least 50%, particularly preferably at least 80%, very particularly preferably all of the monomer units present in the polymer have an N-containing heterocycle.
  • N-containing heterocycle In the N-containing
  • Heterocycle is preferably a 5- or 6-membered ring which may be unsaturated, partially saturated or fully saturated, with fully saturated heterocycles being particularly preferred. It is further preferred that the heterocycle comprises an N atom and at least one carbonyl group, wherein the carbonyl group is preferably arranged in the alpha position to the N atom. In a particularly preferred embodiment, the heterocycle is a pyrrolidone which is preferably bonded to the backbone of the polymer via the N atom. In a preferred embodiment according to the invention, the polymer is accordingly a polymer in which at least 20%, preferably at least 50%, in particular at least 80% of the monomer units of the polymer
  • Pyrrolidone units have.
  • the polymer is a polyvinylpyrrolidone.
  • Dishwashing agents preferred according to the invention in particular shaped bodies according to the invention, comprise polyvinylpyrrolidone in the form of polyvinylpyrrolidone particles.
  • Polyvinylpyrrolidone particles have the additional advantage that they facilitate the disintegration of the moldings and thus additionally serve as disintegration aids or tablet disintegrating agents.
  • the function of the PVP particles is therefore not limited solely to improved glass, porcelain and decor protection.
  • Polyvinylpyrrolidon particles having an average particle diameter of 100 to 150 ⁇ , in particular with an average particle diameter of 1 10 to 130 ⁇ , use.
  • average particle diameter or “average diameter” is meant 50 particle diameter in the present invention, the volume mean D, which can be determined by conventional methods.
  • the volume average D 50 particle diameter is that point in the particle size at which 50 % By volume of the particles have a smaller diameter and 50% by volume of the particles have a larger diameter
  • Particle diameters can be determined in particular by means of dynamic light scattering, which are usually carried out on dilute suspensions containing, for example, from 0.01 to 1% by weight of particles.
  • the PVP particles used not only have an average particle diameter of 100 to 150 ⁇ , in particular from 1 10 to 130 ⁇ , but moreover, the particle size of the particles used is preferably completely within the specified intervals. This is ensured by using grain size fractions with the indicated particle sizes obtained by a sieving process.
  • compacts which contain PVP particles and are used according to the invention for producing the shaped bodies can be pressed particularly well.
  • compacts having a hardness in the range from 150 to 250 N, in particular in the range from 200 to 230 N, which in addition is a particularly good one can preferably be obtained by using a pressing force of 40 to 65 kN, more preferably 48 to 60 kN Have trickle behavior.
  • the granules can thus preferably be pressed with relatively low pressing force into compact materials having a relatively high hardness, which moreover preferably have a very good trickling behavior. Accordingly, it is conversely advantageous for the production of compact materials of lower hardness preferably a lower pressing force must be used, as for the production of conventional compactates.
  • Shaped body especially a Kompaktat, especially a cleaning tablet, which contains a mixture of polyvinylpyrrolidone particles having a mean particle diameter of 100 to 150 ⁇ , in particular from 1 10 to 130 ⁇ , and at least one zinc salt and preferably a particularly good trickling having.
  • the polymer comprising N-containing heterocycles, in particular the polyvinylpyrrolidone is preferably present in compositions according to the invention in an amount of 0.1 to 5% by weight, more preferably in an amount of 0.2 to 3% by weight all in an amount of 0.3 to 1, 8 wt .-%, wherein the polymer, in particular the polyvinylpyrrolidone, in a preferred embodiment as described above in particulate form.
  • disintegrants usually that they increase their volume upon ingress of water, whereby on the one hand increases the intrinsic volume (swelling), but on the other hand by the release of gases, a pressure can be generated, which can disintegrate the tablet into smaller particles .
  • further or alternative disintegrants may be present in dishwashing compositions according to the invention, for example carbonate / citric acid systems or carbonate in combination with other organic acids, synthetic polymers or natural polymers or modified natural substances such as cellulose and starch and theirs Derivatives and alginates or casein derivatives.
  • gas-developing effervescent systems are used as further or alternative disintegrants.
  • Preferred effervescent systems consist of at least two constituents which react with one another to form gas, for example alkali metal carbonate and / or bicarbonate and an acidifier which is suitable for liberating carbon dioxide from the alkali metal salts in aqueous solution.
  • An acidifying agent that releases carbon dioxide from the alkali salts in aqueous solution is, for example, citric acid.
  • the further disintegration aids are, if used, preferably in amounts of 0.1 to 10 wt .-%, preferably 0.2 to 5 wt .-% and in particular 0.5 to 2 wt .-%, each based on the total weight of Dishwashing agent, used.
  • the shaped body according to the invention contains PVP particles and, apart from the PVP particles, no further disintegration auxiliaries.
  • Dishwashing compositions according to the invention contain as further constituent at least one zinc salt.
  • the zinc salt may be an inorganic or organic zinc salt.
  • the zinc salt to be used according to the invention preferably has a solubility in water above 100 mg / l, preferably above 500 mg / l, more preferably above 1 g / l and especially above 5 g / l (all solubilities at 20 ° C water temperature).
  • the inorganic zinc salt is preferably selected from the group consisting of zinc bromide, zinc chloride, zinc iodide, zinc nitrate and zinc sulfate.
  • the organic zinc salt is preferably selected from the group consisting of zinc salts of monomeric or polymeric organic acids, in particular from the group zinc acetate, zinc acetylacetonate, zinc benzoate, zinc formate, zinc lactate, zinc gluconate, zinc ricinoleate, zinc abietate, zinc valerate and zinc p-toluenesulfonate.
  • zinc acetate is used as the zinc salt.
  • the zinc salt is preferably present in dishwashing detergents according to the invention in an amount of from 0.01 to 3% by weight, more preferably in an amount of from 0.05 to 2% by weight, in particular in an amount of from 0.1 to 1% by weight. %, contain.
  • Preferred automatic dishwashing agents according to the invention contain as further constituent at least one bleaching agent, oxygen bleaching agents being preferred.
  • oxygen bleaching agents being preferred.
  • sodium percarbonate, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Further bleaches which can be used are, for example, peroxypyrophosphates, citrate perhydrates and H 2 O 2 -producing peracidic salts or peracids, such as perbenzoates, peroxophthalates,
  • Diperazelaic acid phthaloiminoperacid or diperdodecanedioic acid.
  • bleaching agents from the group of organic bleaching agents can also be used.
  • Typical organic bleaches are the diacyl peroxides such as dibenzoyl peroxide.
  • Other typical organic bleaches are the peroxyacids, examples of which include the alkyl peroxyacids and the aryl peroxyacids.
  • Preferred automatic dishwashing agents according to the invention are characterized in that they contain an oxygen bleaching agent, preferably sodium percarbonate, more preferably a coated sodium percarbonate.
  • an oxygen bleaching agent preferably sodium percarbonate, more preferably a coated sodium percarbonate.
  • the weight fraction of the bleaching agent, based on the total weight of the washing or cleaning agent, is in preferred
  • Embodiments between 2 and 30 wt .-%, preferably between 4 and 20 wt .-% and in particular between 6 and 15 wt .-%.
  • Machine dishwashing detergents according to the invention may further contain bleach activators.
  • bleach activators These compounds give under perhydrolysis aliphatic peroxycarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted perbenzoic acid.
  • Suitable substances are the O- and / or N-acyl groups of the mentioned carbon atom number and / or optionally substituted
  • Automatic dishwashing detergents characterized in that they contain as bleach activator a bleach activator from the group of the acetylated amines, preferably tetraacetylenediamine (TAED), are preferred according to the invention.
  • TAED tetraacetylenediamine
  • Machine dishwashing detergents preferably at least one
  • Bleach catalyst These substances are bleach-enhancing transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo saline complexes or carbonyl complexes. Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands and Co, Fe, Cu and Ru ammine complexes can also be used as bleach catalysts.
  • transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo saline complexes or carbonyl complexes.
  • Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands and Co, Fe, Cu and Ru ammine complexes can also be used as bleach catalysts.
  • complexes of manganese in the oxidation state II, III, IV or V are used, which preferably one or more macrocyclic (s) ligand (s) with the
  • ligands are used which have nitrogen donor functions.
  • bleach catalyst (s) in the compositions of the invention which as macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-triazacyclononane (TACN ), 1, 5,9-trimethyl 1, 5,9-triazacyclododecane (Me-TACD), 2-methyl-1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me / Me-TACN) and / or 2-methyl-1, 4, 7-triazacyclononane (Me / TACN).
  • suitable bleach catalyst (s) in the compositions of the invention which as macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-triazacyclononane (TACN ), 1, 5,9-trimethyl 1, 5,9-
  • Automatic dishwashing detergent characterized in that it further comprises a
  • Bleach catalyst selected from the group of bleach-enhancing transition metal salts and transition metal complexes, preferably from the group of complexes of manganese with 1, 4,7-trimethyl-1,4,7-triazacyclononane (Me 3 -TACN) or 1, 2,4,7- tetramethyl-1, 4, 7-triazacyclononane (Me 4 - TACN) are preferred according to the invention, since by the aforementioned
  • Bleaching catalysts, in particular the cleaning result can be significantly improved.
  • Central atoms Mn and Co are in conventional amounts, preferably in an amount up to 5 wt .-%, in particular from 0.0025 wt .-% to 1 wt .-% and particularly preferably from
  • bleach catalyst-containing agent used. In special cases, however, more can be done
  • Bleaching catalyst can be used.
  • Preferred machine dishwasher detergents according to the invention contain as further constituent at least one anionic polymer.
  • Preferred anionic polymers here are the copolymeric polycarboxylates and the copolymeric polysulfonates.
  • the proportion by weight of the anionic polymer in the total weight of the inventive automatic dishwashing agent in a preferred embodiment is from 0.1 to 20% by weight, preferably from 0.5 to 18% by weight, particularly preferably from 1.0 to 15% by weight. % and in particular from 4 to 14 wt .-%.
  • Machine dishwashing detergents characterized in that the copolymeric anionic polymer is selected from the group of hydrophobically modified polycarboxylates and polysulfonates is a particularly preferred object, as represented by the hydrophobic
  • Drying properties of these agents can be achieved with low deposit formation.
  • copolymers may have two, three, four or more different monomer units.
  • Preferred copolymeric polysulfonates contain sulfonic acid group-containing (s)
  • Monomer (s) at least one monomer from the group of unsaturated carboxylic acids.
  • unsaturated carboxylic acids are acrylic acid, methacrylic acid, ethacrylic acid, ⁇ -chloroacrylic acid, ⁇ -cyanoacrylic acid, crotonic acid, ⁇ -phenyl-acrylic acid, maleic acid,
  • Copolymers of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid are particularly preferably used according to the invention as copolymeric polycarboxylates.
  • Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
  • Their relative molecular weight, based on free acids, is generally from 2000 to 70000 g / mol, preferably from 20,000 to 50,000 g / mol and in particular from 30,000 to 40,000 g / mol.
  • Particularly preferred monomers containing sulfonic acid groups are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-methacrylamido-2-methyl-1-propanesulfonic acid, 3 Methacrylamido-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propenylsulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 3-sulfo - Propylmethacrylat, sulfomethacrylamide, sulfomethylmethacrylamide and mixtures of said acids or their water-
  • the sulfonic acid groups may be wholly or partially in neutralized form, i. the acidic acid of the sulfonic acid group in some or all sulfonic acid groups can be exchanged for metal ions, preferably alkali metal ions and in particular for sodium ions.
  • metal ions preferably alkali metal ions and in particular for sodium ions.
  • the monomer distribution of the copolymers preferably used according to the invention in the case of copolymers containing only monomers containing carboxylic acid groups and monomers containing sulfonic acid groups is preferably from 5 to 95% by weight, more preferably from 50 to 90% by weight of the sulfonic acid group-containing monomer. % and the share of
  • the molar mass of the sulfo copolymers preferably used according to the invention can be varied in order to adapt the properties of the polymers to the desired end use.
  • Preferred automatic dishwasher detergents are characterized in that the copolymers have molar masses of from 2000 to 200,000 gmol 1 , preferably from 4000 to 25,000 gmol 1 and in particular from 5000 to 15,000 gmol -1 .
  • the copolymers include besides
  • Carboxyl-containing monomer and sulfonic acid-containing monomer further at least one nonionic, preferably hydrophobic monomer.
  • the use of these hydrophobically modified polymers has made it possible in particular to improve the rinse aid performance of automatic dishwashing detergents according to the invention.
  • Automatic dishwashing detergent characterized in that the automatic dishwashing detergent comprises as anionic copolymer a copolymer comprising
  • nonionic monomers are preferably monomers of the general formula
  • R (R 2 ) C C (R 3 ) -XR 4 used, in which R to R 3 are independently -H, -CH 3 or -C 2 H 5 , X is an optional spacer group selected is from -CH 2 -, -C (0) 0- and -C (0) -NH-, and R 4 is a straight or branched chain saturated alkyl radical having 2 to 22 carbon atoms or an unsaturated, preferably aromatic radical having 6 to 22 carbon atoms.
  • nonionic monomers are butene, isobutene, pentene, 3-methylbutene, 2-methylbutene, cyclopentene, hexene, hexene-1, 2-methylpentene-1, 3-methylpentene-1, cyclohexene, methylcyclopentene, cycloheptene, methylcyclohexene, 2,4 , 4-trimethylpentene-1, 2,4,4-trimethylpentene-2,3,3-dimethylhexene-1, 2,4-dimethylhexene-1, 2,5-dimethlyhexene-1,3,5-dimethylhexene-1,4 , 4-dimethylhexane-1, ethylcyclohexyn, 1-octene, ⁇ -olefins having 10 or more carbon atoms such as 1-decene, 1-dodecene, 1-hexadecene, 1-octadecene and C
  • dishwashing agents further comprise at least one nonionic surfactant of the general formula R 0 (AlkO) x M (OAlk) y OR 2 , where R and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical with 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • x and y independently represent values between 1 and 70;
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another are a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms.
  • Dishwashing agent here as a nonionic surfactant, a surfactant of the general formula
  • R is -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2
  • R, R and R 2 independently represent an alkyl or alkenyl radical having 6 to 22 carbon atoms
  • - x and y independently represent values between 1 and 40.
  • R is a linear, saturated alkyl radical having 8 to 16 carbon atoms, preferably 10 to 14 carbon atoms, and n and m independently of one another have values of 20 to 30.
  • Corresponding compounds can be obtained, for example, by reaction of alkyldiols HO-CHR-CH 2 -OH with ethylene oxide, followed by reaction with an alkyle epoxide to close the free OH functions to form a dihydroxy ether.
  • Dishwashing detergent as nonionic surfactant a surfactant of the general formula
  • R and R 2 independently represent an alkyl or alkenyl radical having 4 to 22 carbon atoms
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • - x and y independently represent values between 1 and 40.
  • the weight fraction of the nonionic surfactant of the general formula R 0 (AlkO) x M (OAlk) y OR 2 in the total weight of the inventive automatic dishwashing agent in a preferred embodiment is between 0.05 and 10% by weight, preferably between 0, 1 and 8 Wt .-%, preferably between 0.5 and 5 wt .-% and in particular between 1 and 3 wt .-%.
  • Dishwashing agents according to the invention furthermore preferably contain builder (s) and / or enzyme (s) to ensure their cleaning action.
  • automatic dishwashing agents according to the invention preferably contain one or more builders.
  • the proportion by weight of the builders in the total weight of automatic dishwashing detergents according to the invention is preferably from 15 to 80% by weight and in particular from 20 to 70% by weight.
  • the builders include in particular carbonates, phosphates, citrates, organic cobuilders and silicates.
  • phosphate Preference is also the use of phosphate.
  • the alkali metal phosphates have, with particular preference of pentasodium or.
  • Pentakaliumtriphosphat sodium or potassium tripolyphosphate
  • Alkalimetallphosphate is the summary term for the alkali metal (especially sodium and potassium) salts of various phosphoric acids in which one
  • Metaphosphoric acids (HP0 3 ) n and orthophosphoric acid H 3 P0 4 in addition to high molecular weight representatives can differentiate.
  • the phosphates combine several advantages: they act as alkali carriers, prevent lime deposits on machine parts or lime incrustations in fabrics and also contribute to the cleaning performance.
  • Particularly preferred phosphates according to the invention are the pentasodium triphosphate, Na 5 P 3 Oi 0 (sodium tripolyphosphate) and the corresponding potassium salt pentapotassium triphosphate, K 5 P 3 Oi 0 (potassium tripolyphosphate).
  • the pentasodium triphosphate Na 5 P 3 Oi 0 (sodium tripolyphosphate)
  • the corresponding potassium salt pentapotassium triphosphate K 5 P 3 Oi 0 (potassium tripolyphosphate).
  • phosphates are used as washing or cleaning substances in automatic dishwasher detergents in the context of the present application, these contain phosphate (s), preferably alkali metal phosphate (s), particularly preferably pentasodium or
  • Pentakaliumtriphosphat sodium or potassium tripolyphosphate
  • Pentakaliumtriphosphat in amounts of 5 to 60 wt .-%, preferably from 15 to 45 wt .-% and in particular from 20 to 40 wt .-%, each based on the weight of the automatic dishwashing detergent.
  • organic co-builders are polycarboxylates / polycarboxylic acids, polymeric carboxylates, aspartic acid, polyacetals, dextrins and organic cobuilders. These classes of substances are described below.
  • Useful organic builders are, for example, the polycarboxylic acids which can be used in the form of the free acid and / or their sodium salts, polycarboxylic acids meaning those carboxylic acids which carry more than one acid function.
  • these are citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid,
  • NTA nitrilotriacetic acid
  • the free acids also typically have the property of an acidifying component and thus also serve to set a lower and milder pH of detergents or cleaners.
  • citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any desired mixtures of these can be mentioned here.
  • Particularly preferred machine dishwasher detergents according to the invention contain citrate as one of their essential builders.
  • Machine dishwashing detergents characterized in that they contain 2 to 40% by weight, preferably 5 to 30% by weight and in particular 7 to 20% by weight citrate, are preferred according to the invention.
  • the citrates like the phosphates, are preferably used in combination with carbonates and / or bicarbonate.
  • Preferred automatic dishwasher detergents are therefore characterized by a builder combination of phosphate and carbonate / bicarbonate or of citrate and carbonate / bicarbonate (see Tables 1a and 1b below).
  • builder combinations of phosphate, citrate and carbonate / bicarbonate can be realized.
  • the dishwashing detergent contains at least two builders from the group of the phosphates, carbonates and citrates, the weight fraction of these builders, based on its total weight of the automatic dishwashing agent, preferably from 5 to 80% by weight, preferably 15 to 75 wt .-% and in particular 30 to 70 wt .-% is.
  • the combination of two or more builders from the above-mentioned group has proved to be advantageous for the cleaning and rinsing performance of automatic dishwashing agents according to the invention.
  • polymeric polycarboxylates for example the alkali metal salts of polyacrylic acid or polymethacrylic acid, for example those having a relative molecular mass of 500 to 70,000 g / mol.
  • Suitable polymers are, in particular, polyacrylates which preferably have a molecular weight of 2,000 to 20,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molar masses of from 2000 to 10000 g / mol, and particularly preferably from 3000 to 5000 g / mol, may again be preferred from this group.
  • the content of the automatic dishwashing agents on (homo) polymeric polycarboxylates n is preferably 0.5 to 20% by weight and in particular 3 to 10% by weight.
  • Inventive automatic dishwashing agents as a builder crystalline tikformige silicates of general formula NaMSi x 0 2x + i ⁇ y H 2 0 wherein M is sodium or hydrogen, x is a number from 1, 9 to 22, preferably from 1: 9 to 4, wherein Particularly preferred values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20.
  • amorphous sodium silicates with a Na 2 O: SiO 2 modulus of from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, which preferably delayed release and have secondary washing properties.
  • the content of silicates is less than 10 Wt .-%, preferably below 5 wt .-% and in particular below 2 wt .-% limited.
  • Particularly preferred automatic dishwasher detergents according to the invention are silicate-free.
  • MGDA methylglycinediacetic acid
  • GLDA glutamic acid N, N-diacetic acid
  • the agents according to the invention may contain alkali metal hydroxides.
  • These alkali carriers are preferred in the cleaning agents only in small amounts, preferably in amounts below 10 wt .-%, preferably below 6 wt .-%, preferably below 5 wt .-%, particularly preferably between 0.1 and 5 wt .-% and in particular between 0.5 and 5 wt .-%, each based on the total weight of
  • Inventive agents also preferably contain phosphonates. Preference is given to using hydroxyalkane and / or aminoalkanephosphonates. Among the hydroxyalkane phosphonates, 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance.
  • Preferred aminoalkanephosphonates are ethylenediamine tetramethylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP) and their higher homologs.
  • Phosphonates are present in agents according to the invention preferably in amounts of from 0.1 to 10% by weight, in particular in amounts of from 0.5 to 8% by weight, in each case based on the total weight of the cleaning agent.
  • Dishwashing agents preferably comprise enzyme (s) as a further constituent.
  • enzyme include in particular proteases, amylases, lipases, hemicellulases, cellulases,
  • Perhydrolases or oxidoreductases and preferably mixtures thereof. These enzymes are basically of natural origin; Starting from the natural molecules, improved variants are available for use in detergents or cleaning agents, which are preferably used accordingly. Detergents or cleaning agents contain enzymes preferably in total amounts of 1 ⁇ 10 -6 to 5 wt .-% based on active protein. The protein concentration can be determined by known methods, for example the BCA method or the biuret method.
  • subtilisins those of the subtilisin type are preferable.
  • examples include the subtilisins BPN 'and Carlsberg and their advanced forms, the protease PB92, the subtilisins 147 and 309, the alkaline protease from Bacillus lentus, subtilisin DY, and the enzymes thermitase, proteinase K, and the proteases TW3 and TW7, which are attributed to the subtilases, but not the subtilisins in the narrower sense.
  • amylases which can be used according to the invention are the ⁇ -amylases from Bacillus licheniformis, from ⁇ . amyloliquefaciens, from ⁇ . stearothermophilus, from Aspergillus niger and A. oryzae, as well as those improved for use in detergents and cleaners
  • lipases or cutinases are also usable according to the invention.
  • lipases or cutinases in particular because of their triglyceride-splitting activities, but also in order to generate in situ peracids from suitable precursors.
  • lipases or cutinases include, for example, those originally from Humicola lanuginosa
  • enzymes can be used which are termed hemicellulases
  • Oxidoreductases for example oxidases, oxygenases, catalases, peroxidases, such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases (phenol oxidases, polyphenol oxidases) can be used according to the invention to increase the bleaching effect.
  • oxidases oxygenases, catalases, peroxidases, such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases
  • organic, more preferably aromatic, enzyme-interacting compounds to enhance the activity of the respective oxidoreductases (enhancers) or to react at greatly varying redox potentials between the oxidizing enzymes and the
  • a protein and / or enzyme may be particularly protected during storage against damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • inhibition of proteolysis is particularly preferred, especially if the agents also contain proteases.
  • Detergents may contain stabilizers for this purpose; the provision of such means constitutes a preferred embodiment of the present invention. Washing or cleaning-active proteases and amylases are generally not provided in the form of the pure protein but rather in the form of stabilized, storable and transportable preparations.
  • Such prefabricated preparations include, for example, the solid preparations obtained by granulation, extrusion or lyophilization or, especially in the case of liquid or gel-form detergents, solutions of the enzymes, advantageously as concentrated as possible, low in water and / or added with stabilizers or further auxiliaries.
  • the enzymes may be encapsulated for both the solid and liquid dosage forms, for example by spray-drying or extruding the enzyme solution together with a preferably natural polymer or in the form of capsules, for example those in which the enzymes are entrapped as in a solidified gel or in those of the core-shell type, in which an enzyme-containing core with a water, air and / or
  • Chemical-impermeable protective layer is coated.
  • further active ingredients for example stabilizers, emulsifiers, pigments, bleaches or dyes, may additionally be applied.
  • Such capsules are applied by methods known per se, for example by shaking or rolling granulation or in fluid-bed processes.
  • such granules for example by applying polymeric film-forming agent, low in dust and storage stable due to the coating.
  • the enzyme protein forms only a fraction of the total weight of conventional enzyme preparations.
  • the enzyme protein forms only a fraction of the total weight of conventional enzyme preparations.
  • Protease and amylase preparations contain between 0.1 and 40 wt .-%, preferably between 0.2 and 30 wt .-%, particularly preferably between 0.4 and 20 wt .-% and
  • the automatic dishwashing compositions according to the invention may additionally comprise, in addition to the abovementioned nonionic surfactants to be used according to the invention, other nonionic surfactants.
  • the proportion by weight of the further nonionic surfactant in the total weight of the automatic dishwashing compositions according to the invention may additionally comprise, in addition to the abovementioned nonionic surfactants to be used according to the invention, other nonionic surfactants.
  • Machine dishwashing agent of the invention is in a preferred
  • Embodiment between 0, 1 and 30 wt .-%, preferably between 0.5 and 20 wt .-%, preferably between 1 and 10 wt .-% and in particular between 2 and 6 wt .-%.
  • Preferred further nonionic surfactants in a preferred embodiment have the general formula R 0 [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y [CH 2 CH (CH 3 ) O] z CH 2 CH (OH) R 2 , in the R for a linear or branched aliphatic hydrocarbon radical having 4 to 22
  • R 2 is a linear or branched
  • Hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof, and x and z represents values between 0 and 40 and y is a value of at least 15.
  • the automatic dishwashing detergent contains, based on its total weight, nonionic surfactant of the general formula R 0 [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y [CH 2 CH (CH 3 ) O] z is CH 2 CH (OH) R 2 in amounts of from 0.1 to 15% by weight, preferably from 0.2 to 10% by weight, particularly preferably from 0.5 to 8% by weight and in particular from 1.0 to 6% by weight.
  • Carbon atoms or mixtures thereof and y is a value between 15 and 120, preferably 20 to 100, in particular 20 to 80.
  • the group of these non-ionic surfactants include, for example, hydroxy mixed ethers of the general formula C 6 -22-CH (OH) CH 2 0- (EO) 2o-i2o- C 2 -26, for example, the C 8-12 fatty alcohol (EO) 22 - 2-hydroxydecyl ether and the C 4 . 22 fatty alcohol (EO) 40 -8o-2-hydroxyalkyl ethers.
  • Machine dishwashing detergent according to the invention, characterized in that as further nonionic surfactant a surfactant of the general formula
  • R is CH (OH) CH 2 O- (CH 2 CH 2 O) 2o-i2o-R 2 , where R and R 2 independently of one another are a linear or branched aliphatic hydrocarbon radical having 2 to 20
  • Carbon atoms are particularly preferred.
  • surfactants of the formula R 0 [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 Cl-1 (OI-l) R 2 , in which R is a linear or branched aliphatic hydrocarbon radical with 4 to 22 carbon atoms or mixtures thereof, R 2 is a linear or branched one Hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x is between 0.5 and 4, preferably 0.5 to 1, 5, and y is a value of at least 15.
  • R 0 [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 CH (OH) R 2 in which R is a linear or branched aliphatic hydrocarbon radical having 4 to 22 carbon atoms or mixtures thereof , R 2 is a linear or branched hydrocarbon radical having 2 to 26
  • Carbon atoms or mixtures thereof and x is a value between 1 and 40 and y is a value between 15 and 40, wherein the alkylene units [CH 2 CH (CH 3 ) 0] and [CH 2 CH 2 0] randomized, ie in Form a random statistical distribution.
  • the clear rinse and drying can be significantly improved compared to conventional polyalkoxylated fatty alcohols without free hydroxyl group.
  • the stated C chain lengths and degrees of ethoxylation or degrees of alkoxylation of the abovementioned nonionic surfactants represent statistical mean values which, for a specific product, may be an integer or a fractional number. Due to the methods II trade products of the formulas mentioned are usually not from an individual representative, but from mixtures, which may result in both the C chain lengths and for the degrees of ethoxylation and degrees of alkoxylation averages and resulting broken numbers.
  • nonionic surfactants can not only be used as
  • Particularly preferred automatic dishwasher detergents according to the invention contain
  • R and R 2 independently represent an alkyl or alkenyl radical having 4 to 22 carbon atoms
  • - x and y independently represent values between 1 and 40.
  • automatic dishwashing agents comprise a) from 0.1 to 5% by weight of polyvinylpyrrolidone particles, preferably those having an average particle diameter of from 100 to 150 ⁇ m, in particular from 10 to 130 ⁇ m;
  • the agents according to the invention may contain further washing or cleaning-active substances, preferably from the group of
  • Another object of the present application is a method for cleaning dishes in a dishwasher, using a machine dishwashing detergent according to the invention, wherein the machine Dishwashing agent are preferably metered during the passage of a dishwashing program, before the start of the main wash cycle or in the course of the main wash cycle in the interior of a dishwasher.
  • agent according to the invention in the interior of the dishwasher can be done manually, but preferably the agent is metered by means of the metering chamber of the dishwasher in the interior of the dishwasher.
  • the automatic dishwasher detergents according to the invention show their advantageous cleaning and decor protection properties, in particular also in low-temperature cleaning processes.
  • dishwashing processes using agents according to the invention are therefore characterized in that the dishwashing processes are carried out at a liquor temperature below 60 ° C., preferably below 50 ° C.
  • Dishwashing detergent tablets can be taken from the following tables:
  • Polyvinylpyrrolidone particles 0.1 to 5 0, 1 to 5 0, 1 to 5 0, 1 to 5 diameter: 100-150 ⁇
  • Zinc salt 0.01 to 10, 1 to 0.5 0.01 to 1 0.1 to 0.5
  • Nonionic surfactant A 1 0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10
  • Zinc salt 0.01 to 10, 1 to 0.5 0.01 to 1 0.1 to 0.5
  • Polyvinylpyrrolidone particles 0.1 to 5 0, 1 to 5 0, 1 to 5 0, 1 to 5
  • Nonionic surfactant A '0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10
  • Anionic copolymer C 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18
  • Polyvinylpyrrolidone particles 0.1 to 5 0, 1 to 5 0, 1 to 5 0, 1 to 5
  • Zinc salt 0.01 to 10, 1 to 0.5 0.01 to 1 0.1 to 0.5
  • Bleaching catalyst 0 to 2 0.0025 to 1 0 to 2 0.0025 to 1
  • Nonionic surfactant A 1 0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10
  • Anionic copolymer C 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18 0.5 to 18
  • Polyvinylpyrrolidone particles 0.1 to 5 0, 1 to 5 0, 1 to 5 0, 1 to 5 diameter: 100-150 ⁇
  • Zinc salt 0.01 to 10, 1 to 0.5 0.01 to 1 0.1 to 0.5
  • Bleaching catalyst 0 to 2 0.0025 to 1 0 to 2 0.0025 to 1
  • Nonionic surfactant A 1 b 0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10 0.05 to 10
  • Polyvinylpyrrolidone particles 0.1 to 5 0, 1 to 5 0, 1 to 5 0, 1 to 5 diameter: 100-150 ⁇ Zinc salt 0.01 to 10, 1 to 0.5 0.01 to 1 0.1 to 0.5
  • Bleaching catalyst 0 to 2 0.0025 to 1 0 to 2 0.0025 to 1
  • nonionic surfactant A of the general formula R 0 (AlkO) x M (OAlk) y OR 2 in which
  • R and R 2 independently of one another represent a branched or unbranched, saturated or unsaturated, optionally hydroxylated alkyl radical having 4 to 22 carbon atoms;
  • Alk is a branched or unbranched alkyl radical having 2 to 4 carbon atoms
  • M is an alkyl radical from the group CH 2 , CHR 3 , CR 3 R 4 , CH 2 CHR 3 and CHR 3 CHR 4 , where R 3 and R 4 independently of one another represent a branched or unbranched, saturated or unsaturated alkyl radical having 1 to 18 carbon atoms
  • a nonionic surfactant A of the general formula R -CH (OH) CH 2 -O (CH 2 CH 2 O) x CH 2 CHR (OCH 2 CH 2 ) y O-CH 2 CH (OH) -R 2 is used, in of the
  • R, R and R 2 independently represent an alkyl or alkenyl radical having 6 to 22 carbon atoms
  • a nonionic surfactant A of the general formula R-O (CH 2 CH 2 O) x CR 3 R 4 (OCH 2 CH 2 ) y O-R 2 is used in the
  • R and R 2 independently represent an alkyl or alkenyl radical having 4 to 22 carbon atoms;
  • R 3 and R 4 independently of one another are H or an alkyl radical or alkenyl radical having 1 to 18 carbon atoms and
  • - x and y independently represent values between 1 and 40;
  • an anionic polymer C from the group of copolymeric polycarboxylates and copolymeric polysulfonates
  • an anionic polymer C comprising

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Abstract

L'invention concerne des détergents pour lave-vaisselle qui contiennent une combinaison d'un sel de zinc et d'un polymère comportant des hétérocycles azotés, diminuent la corrosion du verre et de la porcelaine et ont en particulier un effet de protection amélioré sur le décor de la vaisselle.
EP12724981.1A 2011-06-21 2012-05-30 Détergents pour vaisselle avec protection de décor améliorée Active EP2723844B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12724981T PL2723844T3 (pl) 2011-06-21 2012-05-30 Środki do zmywania naczyń z ulepszoną ochroną dekoracji

Applications Claiming Priority (2)

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DE102011077865A DE102011077865A1 (de) 2011-06-21 2011-06-21 Geschirrspülmittel mit verbessertem Dekor-Schutz
PCT/EP2012/060105 WO2012175292A1 (fr) 2011-06-21 2012-05-30 Détergents pour vaisselle avec protection de décor améliorée

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EP2723844A1 true EP2723844A1 (fr) 2014-04-30
EP2723844B1 EP2723844B1 (fr) 2020-02-26

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DE (1) DE102011077865A1 (fr)
ES (1) ES2786102T3 (fr)
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DE10153555A1 (de) * 2001-08-17 2003-05-22 Henkel Kgaa Maschinelles Geschirrspülmittel mit Glaskorrosionsschutzeigenschaften
DE10225116A1 (de) * 2002-06-06 2003-12-24 Henkel Kgaa Maschinelles Geschirrspülmittel mit verbessertem Glaskorrosionsschutz II
AR058166A1 (es) * 2005-10-28 2008-01-23 Procter & Gamble Composicion que contiene un sulfonato de benceno sustituido esterificado
DE102008020275A1 (de) * 2008-04-22 2009-10-29 Henkel Ag & Co. Kgaa Zinkhaltiger Wasch- oder Reinigungsmittelformkörper

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Title
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PL2723844T3 (pl) 2020-08-10
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DE102011077865A1 (de) 2012-12-27
ES2786102T3 (es) 2020-10-08

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