EP2519623B2 - Produits de remplacement de phosphate pour des compositions de détergent et/ou de nettoyage compatibles avec des membranes - Google Patents

Produits de remplacement de phosphate pour des compositions de détergent et/ou de nettoyage compatibles avec des membranes Download PDF

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Publication number
EP2519623B2
EP2519623B2 EP09852770.8A EP09852770A EP2519623B2 EP 2519623 B2 EP2519623 B2 EP 2519623B2 EP 09852770 A EP09852770 A EP 09852770A EP 2519623 B2 EP2519623 B2 EP 2519623B2
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Prior art keywords
acid
composition
composition according
copolymer
membrane
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German (de)
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EP2519623A4 (fr
EP2519623A1 (fr
EP2519623B1 (fr
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Amila Bilic
Ralf-Erbo Knop
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Ecolab Inc
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Ecolab Inc
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    • 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
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids

Definitions

  • the present invention relates to a cleaning or detergent composition as defined in claim 1 comprising 5 to 30 wt.-% of a phosphate substitute, said phosphate substitute comprising a water-soluble copolymer and a multidentate chelating agent, the composition being free from any phosphates, silicates and cellulose-based compounds.
  • Phosphates bind calcium and magnesium ions and are able to disperse insoluble salts of these ions, e.g. calcium carbonate causing water hardness and leading to spotting on hard surfaces and graying in textiles. Phosphates furthermore can act as alkalinity source for the cleaning or detergent composition, while at the same time being able to buffer the wash liquor above pH 9 in combination with further additives.
  • phosphate substitutes should nevertheless fulfill the different functions of phosphate in cleaning and/or detergent compositions mentioned above, namely (1) complexing of magnesium and calcium ions, (2) dispersing capacity for insoluble salts of these ions, for example calcium carbonate, (3) providing alkalinity, and (4) buffering capacity.
  • zeolites being alumino silicates
  • zeolites have a high binding constant for magnesium and calcium ions and are able to sequester free magnesium and calcium cations.
  • zeolites are insoluble in water and their incorporation in cleaning and detergent compositions can lead to undesirable residues being deposited on the surfaces/fabrics to be cleaned.
  • cleaning and detergent compositions comprising high levels of zeolite builders form undesirable cloudy wash liquors upon contact with water. For this reason zeolites are commonly used in combination with further additives in order to improve their performance and activity.
  • phosphate substitute builders based on zeolites or mixtures of zeolites with further compounds are suitable for various household applications, they are not for institutional and industrial processes, as in these processes, the wastewater generated in the automatic cleaning/washing process is usually cleaned and purified using a membrane filtration step.
  • the purified water obtained from this membrane filtration step can afterwards be reused in further washing cycles, thus reducing the need of fresh water required to be added in the washing cycle, saving resources and reducing costs.
  • WO 2005/118760 and WO 2008/110205 A1 both describe a membrane-friendly pasty soap composition comprising a combination of an acrylic/maleic copolymer and the trisodium salt of nitrilotriacetic acid (NTA) as a builder system.
  • NTA nitrilotriacetic acid
  • WO 2007/101470 A1 describes a liquid membrane-compatible detergent composition comprising a mixture of an acrylic-maleic copolymer and the sodium salt of methyl glycine diacetic acid (MGDA) in a ratio of 1:1. While the specific detergents and cleaning compositions described in this application show a good washing performance even in hard water, it is explicitly stated in WO 2007/101470 A1 that fatty acid soaps must not be present in such compositions as they tend to form lime soaps in the presence of hard water which block the membranes of the membrane filtration unit.
  • MGDA methyl glycine diacetic acid
  • the substitute exhibits an improved membrane compatibility in comparison to the phosphate substitutes known in the art, in particular with respect to membrane capacity and membrane cleaning results, even in the presence of fatty acids or the soaps derived therefrom.
  • Detergent compositions comprising this substitute showed good cleaning properties as well.
  • the amount of 5 to 30 wt.-% relates to the amount of the complete phosphate substitute mixture, i.e. to the amount of the mixture of the water-soluble copolymer and the chelating agent.
  • the cleaning/detergent composition comprises 15 wt.-% of a phosphate substitute comprising the copolymer and the chelating agent in a ratio of 2:1, then the cleaning/detergent composition comprises 10 wt.-% of the copolymer and 5 wt.-% of the chelating agent, based on the whole composition.
  • the phosphate substitute comprises a water-soluble copolymer.
  • a copolymer is regarded as being water-soluble if at least 100 g, more preferably at least 200 g of the polymer can be completely dissolved in one liter (1 L) of water at a temperature of 23°C.
  • a multidentate chelating agent is a compound capable of donating two or more pairs of electrons from at least two different atoms of different functional groups (complexing groups) in a complexation reaction to form coordinate bonds.
  • the multidentate chelating agent preferably comprises 3 to 6 complexing groups per molecule, which means that it preferably donates at least 3 to 6 pairs of electrons in a complexation reaction to form coordinate bonds.
  • These multidentate chelating agents form water-soluble complexes with Ca 2+ and/or Mg 2+ magnesium ions, thus preventing the formation of insoluble precipitates, which otherwise would block the membrane.
  • the calcium or magnesium complex is regarded as being water-soluble if at least 0.1 mol of this complex can be completely dissolved in one liter of water at a temperature of 23°C.
  • the composition is free from any phosphates, silicates, including zeolites, and cellulose-based compounds.
  • the cleaning/detergent compositions of the present invention are not only environmentally friendly due to the lack of phosphates, but are also suitable for the application in machine dishwashing or laundry washing processes which employ membrane filtration techniques, including reverse osmosis membranes.
  • the composition of the present invention can even be used as a cleaning agent for cleaning soiled, blocked and/or contaminated membranes, including reverse osmosis membranes.
  • the composition of the present invention comprises 6 to 27.5 wt.-%, more preferably 7.5 to 25 wt.-%, and most preferably 9 to 20 wt.-% of the phosphate substitute.
  • the amount of phosphate substitute may be adjusted to the water hardness in a particular region and to the aggregate state of the cleaning/detergent composition. If the composition of the present invention is provided in the form of a solid composition, the amount of phosphate substitute in the composition preferably is in the range of 14 to 25 wt.-%, more preferably in the range of 17 to 23 wt.-%, and even more preferably in the range of 18 to 20 wt.-%.
  • the composition of the present invention is provided in the form of a liquid laundry detergent composition
  • the composition preferably comprises between 5 and 15 wt.-% of the phosphate substitute, more preferably between 7.5 and 12 wt.-% and most preferably 8.5 to 11 wt.-%.
  • the copolymer comprised in the phosphate substitute of the present invention has a calcium carbonate dispersing capacity of at least 150 mg CaCO 3 /g copolymer, preferably of at least 175 mg CaCO 3 /g, more preferably of at least 200 mg CaCO 3 /g, even more preferably of at least 250 CaCO 3 /g and most preferably the calcium carbonate dispersing capacity of the copolymer is in the range of 280 to 320 mg CaCO 3 /g copolymer.
  • the calcium carbonate dispersing capacity referred to herein is determined according to F. Richter and E.W. Winkler, Tensides Surfactants Detergents 1987, 4, 213 - 216 , by dissolving 1 gram of the substance (copolymer) in 100 mL deionized water, neutralizing the solution, if necessary, with 1M NaOH, adding 10 mL of a 10 % Na 2 CO 3 solution, and adjusting to pH 10 by adding NaOH or HCl, as required. The solution is then titrated with a 0.25 M calcium acetate solution until the solution becomes turbid, while the pH and the temperature are kept constant during titration.
  • R, R' R" may be the same or different and are not particulary limited.
  • R, R' and R" represent hydrogen, C 1 -C 6 alkyl groups or functional groups such as carboxylates, nitriles, and the like.
  • the aliphatic unsaturated monomer units of the present invention further comprise acidic groups, preferably carboxylic groups, i.e. groups of the chemical formula -CO 2 H or their salts -CO 2 M, wherein M is an alkali metal cation.
  • the at least two different aliphatic unsaturated monomer units comprised in the water-soluble copolymer are selected from the group consisting of acrylic acid, methacrylic acid, maleic anhydride and fumaric acid, or salts thereof.
  • one aliphatic unsaturated monomer unit represents maleic acid or salts thereof and the second aliphatic unsaturated monomer unit represents acrylic acid or salts thereof.
  • the copolymer comprises 50 to 70 wt.-% acrylic acid and 50 to 10 % maleic acid.
  • the relative molecular weight of the copolymer preferably is between 2,000 and 200,000, preferably between 3,000 and 150,000, more preferably between 4,000 and 125,000, even more preferably between 12,000 and 110,000, particularly preferred between 20,000 and 100,000, even more particularly preferred between 50,000 and 90,000, and most preferably between 65,000 and 75,000, based on free acid. It should be understood that even if the preferred molecular weights are given based on the free acid, in a particularly preferred embodiment at least partly neutralized copolymers are used, i.e. polymers comprising negatively charged carboxylate groups having a positively charged alkali metal counterion, wherein these counterions preferably are sodium or potassium ions.
  • the copolymer preferably has a neutral or close to neutral pH (pH 6 to 8).
  • Suitable, but less preferred compounds of this class are copolymers of acrylic acid or methacrylic acid with vinyl ethers, such as vinyl methyl ethers, vinyl esters, ethylene, propylene and styrene, in which the acid makes up at least 50% by weight.
  • vinyl ethers such as vinyl methyl ethers, vinyl esters, ethylene, propylene and styrene
  • Other suitable polymer carboxylates or carboxylic acids are water-soluble terpolymers which contain two unsaturated acids and/or salts thereof as monomers and vinyl alcohol and/or a vinyl alcohol derivative or a carbohydrate as the third monomer.
  • the first acidic monomer or its salt is derived from a monoethylenically unsaturated C 3 -C 8 -carboxylic acid and preferably from a C 3 -C 4 -monocarboxylic acid, more preferably from (meth)acrylic acid.
  • the second acidic monomer or its salt may be a derivative of C 4 -C 8 -dicarboxylic acid, maleic acid being particularly preferred.
  • the third monomer unit in this case will be formed from a vinyl alcohol and/or preferably an esterified vinyl alcohol. Especially preferred are vinyl alcohol esters formed form a short chain carboxylic acids, like C 1 -C 4 -carboxylic acids, with vinyl alcohol.
  • Preferred terpolymers contain 60 to 95 wt-%, particularly 70 to 90 wt.-% (meth)acrylic acid or (meth)acrylate, respectively, more particular acrylic acid or acrylate, respectively, and maleic acid or maleinate and 5 to 40 wt.-%, preferably 10 to 30 wt.-% vinyl alcohol and/or vinyl acetate.
  • the second monomer or its salt may also be a derivative of an allyl sulfonic acid substituted in the 2-position by an alkyl group, preferably a C 1 -C 4 alkyl group, or an aryl group which is preferably derived from benzene or a benzene derivative.
  • Preferred terpolymers contain 40 to 60 wt.-%, in particular 45 to 55 wt.-% (meth)acrylic acid or (meth)acrylate, more preferred acrylic acid or acrylate, 10 to 30 wt.-%, particularly 15 to 25 wt.-% methallyl sulfonic acid or methallyl sulfonate and as third monomer 15 to 40 wt.-%, preferably 20 to 40 wt.-% of a carbohydrate.
  • Said carbohydrate for example, may be a mono-, di-, oligo- or polysaccharide, with mono-, di- or oligosaccharide being preferred. Saccharose is most preferred.
  • polymeric polycarboxylates may be produced by the method described in German patent DE 42 21 381 and German patent application DE 43 00 772 .
  • the polyacetal carboxylic acids described, for example, in U.S. Pat. Nos. 4,144,226 and 4,146,495 , which are obtained by polymerization of esters of glycolic acid, introduction of stable terminal groups and saponification to the sodium or potassium salts are also suitable, as are polymeric acids obtained by polymeriziation of acrolein and Cannizzaro disproportionation of the polymer with strong alkalis. They are essentially made of acrylic acid units and vinyl alcohol units or acrolein units.
  • the chelating agent of the present invention preferably is a so-called "polycarboxylic acid” comprising 3 to 6 carboxylic groups per molecule, either in the protonated or in the neutralized state, preferably selected from the group consisting of hydroxyethylenediaminetriacetic acid (HEDTA), diethylenetriaminepentaacetic acid (DTPA), methylglycinediacetic acid (MGDA), glutamic acid- N , N -diacetic acid (GLDA), iminodisuccinic acid (IDSA), hydroxyiminodisuccinic acid (HIDS), ethylenediaminodisuccinic acid (EDDS), aspartic acid- N , N -diacetic acid (ASDA), salts thereof, and mixtures thereof.
  • HEDTA hydroxyethylenediaminetriacetic acid
  • DTPA diethylenetriaminepentaacetic acid
  • MGDA methylglycinediacetic acid
  • GLDA glutamic acid- N
  • [CaZ (m-2)- ] represents the concentration of the chelate complex
  • [Ca 2+ ] represents the concentration of free calcium ions
  • [Z m- ] represents the concentration of the chelating agent anion
  • K CaZ represents the stability constant of the chelate complex.
  • the stability constants can easily be determined by methods well known to a person skilled in the art and are also mentioned in the product information sheet provided by the manufacturers of the aforementioned chelating agents, all of which are commercially available.
  • composition of the present invention is free from any phosphates, silicates and/or cellulose-based compounds.
  • a composition is free from a compound if it contains less than 0.1 wt.-% of this compound, preferably less than 0.01 wt.-%, more preferably less than 0.001 wt.-% and preferably the composition does not contain a compound at all, i.e. the concentration of this compound is below the detection limit of the detection method typically used to detect the compound.
  • Cellulose-based compounds commonly found in detergent composition which, however, are not present in the composition of the present invention are, for example, greying inhibitors such as cellulose ethers, e.g. carboxymethyl cellulose, methyl cellulose, hydroxyalkyl cellulose, methylhydroxyethyl cellulose, methylhydroxypropyl cellulose, and methylcarboxymethyl cellulose.
  • greying inhibitors such as cellulose ethers, e.g. carboxymethyl cellulose, methyl cellulose, hydroxyalkyl cellulose, methylhydroxyethyl cellulose, methylhydroxypropyl cellulose, and methylcarboxymethyl cellulose.
  • the composition is free from ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), and/or any silicon-containing compounds.
  • EDTA ethylenediaminetetraacetic acid
  • NTA nitrilotriacetic acid
  • silicon-containing compounds any silicon-containing compounds.
  • composition of the present invention foam inhibitors/antifoaming agents on a silicon basis such as, for example, polysiloxanes or silicon oil defoamers, commonly used in membrane-friendly laundry detergent compositions known in the state of the art do not have to be included in the composition of the present invention.
  • the composition of the present invention can be free from any of these compounds, while still having desirable foaming properties.
  • the fatty acids of the general formula (II) and their salts can be exemplified by the fatty acids octanoic acid, pelargonic acid, decanoic acid, lauric acid, lauroleic acid, myristic acid, myristoleic acid, palmitic acid, palmitoleic acid, stearic acid, petroselinic acid, petroselaidic acid, oleic acid, linoleic acid, linolaidic acid, linolenis acid, eleostearic acid, arachic acid, gadoleic acid, arachidonic acid, behenic acid, erucic acid, brassidic acid, clupanodonic acid.
  • composition comprises two different alkoxylated fatty alcohols of the formulas R 1a O(C 2 H 4 O) 5-7 H and R 1b O(C 2 H 4 O) 12-16 H, wherein R 1a and R 1b may be the same or different and represent a linear or branched alkyl or alkenyl residue with 15 to 20 carbon atoms, preferably with 16 to 18 carbon atoms.
  • the composition of the present invention optionally comprises an anionic surfactant in an amount of from 0.1 to 15 wt.-%, preferably of from 1 to 5 wt.-%, and more preferably of from 1.2 to 2 wt.-%.
  • the anionic surfactant preferably is selected from from the group consisting of C 8 -C 18 alkyl sulfates, C 8 -C 18 alkyl ether sulfates, C 8 -C 18 alkyl sulfonates, C 8 -C 18 ⁇ -olefinsulfonates, sulfonated C 8 -C 18 fatty acids, C 8 -C 18 alkylbenzenesulfonates, sulfosuccinic mono- and di-C 1 -C 12 esters, C 8 -C 18 alkyl polyglycol ether carboxylates, C 8 -C 18 N-acyl taurides, C 8 -C 18 N-sarconisates, C 8
  • the composition furthermore preferably comprises one or more alkalinity sources in a total amount of 3 to 90 wt.-%, more preferably in an amount of 5 to 50 wt.-%, based on the whole composition.
  • compositions of the present invention may be provided as a liquid, a gel, an emulsion, a paste or a solid, including tablets, granules, powders, blocks. If the composition is in a solid form or, in the case of a pasty composition, has a solid phase, the solid phase is formed from the alkalinity source (and the phosphate substitute). Accordingly, a solid or paste-like composition comprises a higher amount of alkalinity sources than a liquid or a gel composition.
  • a powdered laundry detergent composition according to the present invention preferably comprises 20 to 60 wt.-% of one or more alkalinity sources according to the present invention, more preferably between 30 and 50 wt.-%, whereas a liquid laundry detergent composition according to the present invention preferably comprises 3 to 15 wt.-%, more preferably 4 to 10 wt.-%.
  • the alkalinity source preferably is selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, or mixtures thereof.
  • the composition additionally may comprise additives commonly used in cleaning and/or detergent compositions, preferably selected from the group consisting of pH modifiers, antimicrobial agents, viscosity modifying agents, optical brighteners, organic solvents, bleaching agents, bleach activators, dyes, perfume, membrane-compatible antifoaming agents, corrosion inhibition agents, enzymes, and mixtures thereof.
  • additives commonly used in cleaning and/or detergent compositions preferably selected from the group consisting of pH modifiers, antimicrobial agents, viscosity modifying agents, optical brighteners, organic solvents, bleaching agents, bleach activators, dyes, perfume, membrane-compatible antifoaming agents, corrosion inhibition agents, enzymes, and mixtures thereof.
  • the present invention furthermore provides a method for washing textiles using the composition of the present invention.
  • the method preferably is an automatic machine washing process, wherein waste water accumulated during the whole washing process or parts thereof is purified in a filtration process using one or more membrane filtration units, said filtration process preferably comprising one or more reverse osmosis steps.
  • the above-mentioned compositions are used in commercial laundries.
  • the compositions may as well be used in private washing machines, as a cleaning agent in general and/or a warewashing agent.
  • the inventive composition is membrane-friendly, i.e. it does not cause blocking of the membrane or other damages when it is contained in the waste water which is accumulated during the whole washing process or parts thereof and purified using membrane filtration units.
  • the filtration comprises one or more reverse osmosis steps, which means that the permeation of the wastewater to purify generally remains stable.
  • the obtained purified water may then be reused in another washing cycle, which results in a decrease in the amount of fresh water required to be added to the washing cycle and, accordingly, in a reduction of expenses and in saving resources.
  • Detergent composition were prepared by mixing the compounds listed in table 1 with phosphate or phosphate substitute, respectively, according to table 2.
  • Table 1 Basic Detergent Composition Compound Amount [wt.-% ] C 16 -C 18 fatty alcohol with 14 EO 1 2 C 16 -C 18 fatty alcohol with 6 EO 1 2 C 12 -C 18 coconut fatty acid 3 Alkylbenzene sulfonic acid 2 Hydroxyethylidene diphosphonic acid 1 Sodium hydroxide 2 Sodium carbonate 38 Builder see table 2 Mixture of optical brighteners 0.3 Salts and water remaining In total 100 wt.-% 1 EO: mol ethylene oxides per molecule
  • Table 2 Builder Composition Builder [Amount in wt.-% based on the whole composition] Reference composition 1 26 wt.-% Na 3 PO 4 Reference composition 2 26 wt.-% Na 3 -MGDA Reference composition 3 12 wt.-% sodium salt of a copolymer of maleic acid and acrylic acid Reference composition 4
  • Inventive composition 1 is a solid powdered composition.
  • the composition of the present invention may also be in the form of a liquid composition and table 2 refers to a liquid composition according to the present invention (inventive composition 3).
  • Table 2 Compound Amount [wt.-% ] sodium salt of a copolymer of maleic acid and acrylic acid 6 Na 3 -MGDA 3 C 16 -C 18 fatty alcohol with 14 EO 1 2 C 16 -C 18 fatty alcohol with 6 EO 1 2 C 12 -C 18 coconut fatty acid 3 Alkylbenzene sulfonic acid 2 Hydroxyethylidene diphosphonic acid 0.2 Sodium hydroxide 5 Triethanolamine 2 Propylene Glycol 10 Isopropanol 3 Water 61 Mixture of optical brighteners 0.4 In total 100 wt.-% 1 EO: mol ethylene oxides per molecule
  • reference composition 1 and the inventive composition 1 removal of different fat pigment soil (lanolin, sebum, olive oil, mineral oil, motor oil, make up, and lipstick, respectively) from fabrics made of cotton (CO) and polyester (PES), or a mixture thereof was evaluated.
  • the soiled fabrics were washed for 10 min at 70 °C in a bath comprising 2 g/L of reference composition 1 and the inventive composition 1, respectively, using soft water (0° dH).

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Claims (12)

  1. Composition nettoyante ou détergente comprenant
    a) des alcools gras alcoxylés de formule générale (I) R1O(CnH2nO)xH (I), la composition comprenant deux alcools gras alcoxylés différents, un mélange de R1aO(C2H4O)5-7H et R1bO(C2H4O)12-16H, R1a et R1b pouvant être identiques ou différents et représentant un résidu alkyle ou alcényle linéaire ou ramifié contenant 15 à 20 atomes de carbone, de préférence 16 à 18 atomes de carbone,
    et facultativement un ou plusieurs composés tensioactifs choisis dans le groupe constitué par : (i) les acides gras de formule générale (II) R2CO2M (II) et (ii) les tensioactifs anioniques, ou des mélanges de ceux-ci, R1 et R2 représentant indépendamment un résidu alkyle ou alcényle linéaire ou ramifié contenant 8 à 22 atomes de carbone, n se situant entre 1 et 5 et de préférence valant 2 ou 3, x représentant un degré d'alcoxylation se situant entre 5 et 25, et M représentant l'hydrogène ou un ion métallique alcalin ;
    b) une ou plusieurs sources d'alcalinité,
    c) de l'eau, et
    d) 5 à 30 % en poids, sur la base de la composition totale, d'un substitut du phosphate comprenant :
    i) un copolymère hydrosoluble comprenant au moins deux unités monomères insaturées aliphatiques différentes et ayant une capacité de dispersion du carbonate de calcium d'au moins 150 mg de CaCO3/g de copolymère et
    ii) un agent chélatant multidenté comprenant trois à six groupes complexants par molécule et formant des complexes hydrosolubles avec les ions Ca2+, le rapport du copolymère à l'agent chélatant se situant entre plus de 1:1 et 3:1 (% en poids/% en poids sur la base de la composition totale) et la composition étant exempte de tous phosphates, silicates et composés cellulosiques.
  2. Composition selon la revendication 1, comprenant 6 à 27,5 % en poids, de préférence 7,5 à 25 % en poids, et plus préférablement 9 à 20 % en poids du substitut du phosphate.
  3. Composition selon la revendication 1 ou 2, la capacité de dispersion du carbonate de calcium du copolymère étant d'au moins 175 mg de CaCO3/g de copolymère, de préférence d'au moins 200 mg de CaCO3/g, plus préférablement d'au moins 250 mg de CaCO3/g et se situant le plus préférablement entre 280 et 320 mg de CaCO3/g.
  4. Composition selon l'une quelconque des revendications 1 à 3, les au moins deux unités monomères insaturées aliphatiques différentes étant choisies dans le groupe constitué par l'acide acrylique, l'acide méthacrylique, l'acide maléique, l'anhydride maléique et l'acide fumarique, ou les sels de ceux-ci, une unité monomère insaturée aliphatique étant de préférence l'acide maléique ou les sels de celui-ci et la seconde unité monomère insaturée aliphatique étant de préférence l'acide acrylique ou les sels de celui-ci.
  5. Composition selon l'une quelconque des revendications 1 à 4, l'agent chélatant étant un acide polycarboxylique ou un sel de celui-ci, de préférence choisi dans le groupe constitué par l'acide hydroxyéthylènediaminetriacétique (HEDTA), l'acide diéthylènetriaminepentaacétique (DTPA), l'acide méthylglycinediacétique (MGDA), l'acide glutamique-N,N-diacétique (GLDA), l'acide iminodisuccinique (IDSA), l'acide hydroxyiminodisuccinique (HIDS), l'acide éthylènediaminodisuccinique (EDDS), l'acide aspartique-N,N-diacétique (ASDA), les sels de ceux-ci, et les mélanges de ceux-ci.
  6. Composition selon l'une quelconque des revendications 1 à 5, la composition étant exempte d'acide éthylènediaminetétraacétique (EDTA), d'acide nitrilotriacétique (NTA) et d'un quelconque composé contenant du silicium.
  7. Composition selon la revendication 1, le tensioactif anionique étant choisi dans le groupe constitué par les alkylsulfates en C8-C18, les alkyléthersulfates en C8-C18, les alkylsulfonates en C8-C18, les α-oléfinesulfates en C8-C18, les acides gras sulfonés en C8-C18, les alkylbenzènesulfonates en C8-C18, les mono- et diesters sulfosucciniques en C1-C12, les alkylpolyglycoléthercarboxylates en C8-C18, les N-acyltaurides en C8-C18, les N-sarconisates en C8-C18, les alkyliséthionates en C8-C18, et les mélanges de ceux-ci.
  8. Composition selon la revendication 1 ou 7, la source d'alcalinité étant choisie dans le groupe constitué par l'hydroxyde de sodium, l'hydroxyde de potassium, le carbonate de sodium, le carbonate de potassium, ou les mélanges de ceux-ci, et étant de préférence présente dans une quantité de 3 à 90 % en poids, plus préférablement dans une quantité de 5 à 50 % en poids, sur la base de la composition totale.
  9. Composition selon l'une quelconque des revendications 1 à 8, la composition comprenant en outre des additifs choisis dans le groupe constitué par les agents modifiant le pH, les agents antimicrobiens, les agents modifiant la viscosité, les azurants optiques, les solvants organiques, les agents de blanchiment, les activateurs de blanchiment, les colorants, le parfum, les agents antimousse compatibles avec les membranes, les agents antirouille, les enzymes et les mélanges de ceux-ci.
  10. Procédé de lavage de textiles utilisant une composition selon l'une quelconque des revendications 1 à 9.
  11. Procédé selon la revendication 10, l'eau usée accumulée pendant tout le processus de lavage ou des parties de celui-ci étant purifiée lors d'un processus de filtration utilisant une ou plusieurs unités de filtration sur membrane, ledit processus de filtration comprenant de préférence une ou plusieurs étapes d'osmose inverse.
  12. Utilisation d'une composition selon l'une quelconque des revendications 1 à 9 comme détergent dans les machines de blanchisserie du commerce et/ou les machines à laver domestiques, comme agent nettoyant et/ou lavant.
EP09852770.8A 2009-12-30 2009-12-30 Produits de remplacement de phosphate pour des compositions de détergent et/ou de nettoyage compatibles avec des membranes Active EP2519623B2 (fr)

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US8951956B2 (en) 2008-01-04 2015-02-10 Ecolab USA, Inc. Solid tablet unit dose oven cleaner
US9605236B2 (en) 2012-10-26 2017-03-28 Ecolab Usa Inc. Low alkaline low temperature ware wash detergent for protein removal and reducing scale build-up
US9574163B2 (en) 2012-10-26 2017-02-21 Ecolab Usa Inc. Caustic free low temperature ware wash detergent for reducing scale build-up
US9394508B2 (en) 2012-10-26 2016-07-19 Ecolab Usa Inc. Phosphorus free low temperature ware wash detergent for reducing scale build-up
US9267096B2 (en) 2013-10-29 2016-02-23 Ecolab USA, Inc. Use of amino carboxylate for enhancing metal protection in alkaline detergents
MX2016010570A (es) 2014-02-13 2016-11-29 Basf Se Polvo y granulo, proceso para fabricar dicho polvo y granulo, y sus usos.
US9765286B2 (en) 2014-12-22 2017-09-19 Ecolab Usa Inc. Warewashing composition containing alkanol amine phosphonate and methods of use
MX2017011680A (es) * 2015-03-11 2017-11-06 Basf Se Mezclas de agentes quelantes y proceso para preparar tales mezclas.
CN107406807B (zh) * 2015-03-12 2021-03-23 巴斯夫欧洲公司 制备对映体混合物的方法和对映体混合物

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Also Published As

Publication number Publication date
EP2519623A4 (fr) 2013-06-05
WO2011080540A1 (fr) 2011-07-07
ES2598402T5 (es) 2019-10-09
EP2519623A1 (fr) 2012-11-07
ES2598402T3 (es) 2017-01-27
EP2519623B1 (fr) 2016-08-03

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