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EP1144583B1 - Procede servant a ameliorer la stabilite d'un colorant de formulations d'adjuvant de rin age acide et colore - Google Patents

Procede servant a ameliorer la stabilite d'un colorant de formulations d'adjuvant de rin age acide et colore Download PDF

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Publication number
EP1144583B1
EP1144583B1 EP00908319A EP00908319A EP1144583B1 EP 1144583 B1 EP1144583 B1 EP 1144583B1 EP 00908319 A EP00908319 A EP 00908319A EP 00908319 A EP00908319 A EP 00908319A EP 1144583 B1 EP1144583 B1 EP 1144583B1
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EP
European Patent Office
Prior art keywords
rinse aid
aid composition
weight
chelant
present
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.)
Expired - Lifetime
Application number
EP00908319A
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German (de)
English (en)
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EP1144583A1 (fr
Inventor
Peter Robert Foley
Brian X. Song
Lucio Pieroni
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Procter and Gamble Co
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Procter and Gamble Co
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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
    • C11D3/40—Dyes ; Pigments
    • 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
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/364—Organic compounds containing phosphorus containing nitrogen
    • 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
    • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions

Definitions

  • the present invention relates to acidic rinse aid formulations used in automatic dishwashing. More particularly, the invention relates to a method for improving stability of a dye used in a colored aqueous acidic rinse aid composition to ambient and ultra-violet light radiation of a machine dishwasher rinse aid formulation.
  • rinse aids are aqueous solutions containing a low foam nonionic surfactant.
  • the rinse aid is injected into the final fresh water rinse at a concentration of about 100 to about 500 ppm. The surfactant in the rinse water lowers the surface tension of the rinse water and improves the wetting action of the rinse water.
  • aqueous rinse aid containing a low foam nonionic surfactant and a low molecular weight neutralized, partially neutralized, or non-neutralized polyacrylate polymer without the use of a compatibilizing high molecular weight polymer or a high cloud point co-surfactant, thus providing an acidic, stable aqueous rinse aid dispersion which reduces spotting and filming while improving sheeting action and drainage.
  • U.S. Patent No. 5,254,282 issued on Oct. 19, 1993 to Fusiak, discloses acidified paint removal formulations which are stabilized against color formation by inclusion of a chelating-agent; and U.S. Patent No. 5,206,006, issued on April 27, 1993 to Frontini et al. discloses a composition of the trinder type for detecting hydrogen peroxide evolved in a solution, which contains a chelating agent.
  • the invention meets the needs above by providing a method and composition for improving stability of a dye used in a colored aqueous acidic rinse aid composition to ambient and ultra-violet light radiation.
  • the method for improving stability of a dye used in a colored aqueous acidic rinse aid composition to ambient and ultra-violet light radiation includes the step of adding a chelant selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof to an acidic rinse aid composition.
  • the chelant is present in an amount of at least 1 ppm by weight of the rinse aid composition.
  • a colored acidic rinse aid composition exhibiting improved stability of a dye used therein to ambient and ultra-violet light radiation includes a low foaming nonionic surfactant present in a range of from about 2% to about 80% by weight of the rinse aid composition.
  • the composition also includes a hydrotrope present in a range of from about 0.5% to about 20% by weight of the rinse aid composition.
  • the composition further includes a polyacrylate polymer present in a range of from about 0.1% to about 15% by weight of the rinse aid composition.
  • the polymer has a weight average molecular weight in a range of from about 1000 to about 50,000.
  • composition still further includes a chelant selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof.
  • a chelant selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof.
  • the chelant is present in an amount of at least 1 ppm by weight of the rinse aid composition.
  • the method includes the step of adding a chelant selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof to an acidic rinse aid composition.
  • the chelant is present in an amount of at least 1 ppm, preferably at least 50 ppm, more preferably at least 100 ppm and most preferably at least 150 ppm by weight of the rinse aid composition.
  • the acidic rinse aid composition includes chelants selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof.
  • Other useful chelants include iron and/or manganese chelants.
  • Amino carboxylates useful as optional chelants include ethylenediaminetetracetates, N-hydroxyethylethylenediaminetriacetates, nitrilotriacetates, ethylenediamine tetraproprionates, triethylenetetra-amine-hexacetates, diethylene-triaminepentaacetates, and ethanoldiglycines, alkali metal, ammonium, and substituted ammonium salts therein and mixtures therein.
  • Polyfunctionally-substituted aromatic chelants include dihydroxydisulfobenzenes such as 1,2-dihydroxy-3,5-disulfobenzene, and ethylenediamine disuccinate ("EDDS").
  • the chelant is selected from the group consisting of ethylene diamine tetra acetic acid carboxylate, diethylene triamine penta acetic acid carboxylate , and mixtures thereof.
  • the chelants are selected from polyphosphonate, ethylene diamine tetra acetic acid carboxylate (EDTA) and diethylene triamine penta acetic acid carboxylate (DTPA).
  • the chelant is ethylene triamine penta phosphoric acid.
  • the dye is selected from the group consisting of Pontamine Blue (Copper Phthalocyanine Dyestuff), and Liquitant Patent Blue (polymeric colorant) and FD&C Blue #1 (having the molecular formula C 37 H 34 N 2 Na 2 O 9 S 3 ), and mixtures thereof.
  • the dye has a color selected from the group consisting of blue, green, or mixtures thereof. It has been found that the blue and green dyes typically used in rinse aid formulations, such as the FD&C #1, are unstable to UV light in acidic conditions unless the rinse aid composition is formulated with a chelant according to the present invention.
  • the so-called “acid stable” dyes such as Acid Blue 80
  • the dyes are added in an amount in a range of from 0.25% of a 1% solution in water to about 0.5% of a 1% solution in water.
  • the dye is selected from the group consisting of copper phthalocyanine dyestuff, FD&C #1 colors, polymeric colorants, and mixtures thereof
  • the chelant is selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelants, and mixtures thereof. It has been found that these "dye-chelant" systems, optimally yield the most effective dye color stability to ambient and UV light radiation, when such dyes are used in acidic rinse aids.
  • the most preferred chelants are selected from polyphosphonate ethylene diamine tetra acetic acid carboxylate (EDTA) and diethylene triamine penta acetic acid carboxylate (DTPA) in combination with the most preferred dyes selected from blue dyes such as Pontamine Blue (Copper Phthalocyanine Dyestuff), and Liquitant Patent Blue (polymeric colorant) and FD&C Blue #1 (for example, an FD&C Blue #1 having the molecular formula C 37 H 34 N 2 Na 2 O 9 S 3 ).
  • blue dyes such as Pontamine Blue (Copper Phthalocyanine Dyestuff), and Liquitant Patent Blue (polymeric colorant) and FD&C Blue #1 (for example, an FD&C Blue #1 having the molecular formula C 37 H 34 N 2 Na 2 O 9 S 3 ).
  • the dye stability is further enhanced in the presence of carboxylic acids.
  • carboxylic acids Especially preferred are polycarboxylic acids, such as Sokolan PA13PN manufactured by BASF, Acusol 480, and Acusol 480N, both manufactured by Rohm & Haas. These polycarboxylic acids provide multiple benefits, as they help stabilize the dye and deliver filming performance benefits in the rinse cycle of automatic dishwashing.
  • the polycarboxylic acid is present in an amount in a range of from 0.25% to 10% by weight of the acidic rinse aid composition, and preferably, in an amount in a range of from 1% to 6% by weight.
  • the colored acidic rinse aid composition exhibiting improved stability of a dye used therein to ambient and ultra-violet light radiation includes a low foaming nonionic surfactant desirably present in a range of from 2% to 80% by weight of the rinse aid composition.
  • the composition also includes a hydrotrope desirably present in a range of from 0.5% to 20% by weight of the rinse aid composition.
  • the composition further includes a polyacrylate polymer desirably present in a range of from 0.1% to 15% by weight of the rinse aid composition.
  • the polymer has a weight average molecular weight in a range of from 1000 to 50,000.
  • the composition still further includes a chelant.
  • the chelant is present in an amount of at least 1 ppm by weight of the rinse aid composition.
  • the nonionic surfactants useful in the acidic rinse aid dispersion may be any known low foaming nonionic surfactant used in machine dishwashing applications.
  • suitable nonionic surfactants include the following commercially available materials: Triton RTM CF-10 (an alkylaryl polyether) and Triton DF-16 (a modified polyalkoxylated alcohol) manufactured by Rohm and Haas Company; Plurafac LF404TM, Plurafac LF400TM (mixed linear alcohol alkoxylates), and Pluronic RTM L-62 (a polyoxyethylene-polyoxypropylene block copolymer), all manufactured by BASF Wyandotte Corporation, and BASF RA30 surfactant, manufactured by BASF Corporation.
  • the rinse aid formulation of the invention may contain one or a mixture of such low foaming nonionic surfactants.
  • any nonionic surfactants'useful for detersive purposes can be included in the rinse aid compositions.
  • Exemplary, non-limiting classes of useful nonionic surfactants are listed below.
  • Polyhydroxy fatty acid amides suitable for use herein are those having the structural formula R 2 CONR 1 Z wherein: R 1 is H, C 1 -C 4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl, or a mixture thereof, preferable C 1 -C 4 alkyl, more preferably C 1 or C 2 alkyl, most preferably C 1 alkyl (i.e., methyl); and R 2 is a C 5 -C 31 hydrocarbyl, preferably straight-chain C 5 -C 19 alkyl or alkenyl, more preferably straight-chain C 9 -C 17 alkyl or alkenyl, most preferably straight-chain C 11 -C 17 alkyl or alkenyl, or mixture thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. Z preferably will be derived
  • polyethylene, polypropylene, and polybutylene oxide condensates of alkyl phenols are suitable for use herein.
  • the polyethylene oxide condensates are preferred.
  • These compounds include the condensation products of alkyl phenols having an alkyl group containing from 6 to 18 carbon atoms in either a straight chain or branched chain configuration with the alkylene oxide.
  • alkyl ethoxylate condensation products of aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide are suitable for use herein.
  • the alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms.
  • Particularly preferred are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.
  • the ethoxylated C 6 -C 18 fatty alcohols and C 6 -C 18 mixed ethoxylated/propoxylated fatty alcohols are highly preferred surfactants for use herein, particularly where water soluble.
  • the ethoxylated fatty alcohols are the C 10 -C 18 ethoxylated fatty alcohols with a degree of ethoxylation of from 3 to 50, most preferably these are the C 12 -C 18 ethoxylated fatty alcohols with a degree of ethoxylation from 3 to 40.
  • the mixed ethoxylated/propoxylated fatty alcohols have an alkyl chain length of from 10 to 18 carbon atoms, a degree of ethoxylation of from 3 to 30 and a degree of propoxylation of from 1 to 10.
  • the condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol are suitable for use herein.
  • the hydrophobic portion of these compounds preferably has a molecular weight of from 1500 to 1800 and exhibits water insolubility.
  • Examples of compounds of this type include certain of the commercially-available PluronicTM. surfactants, marketed by BASF.
  • condensation products of ethylene oxide with the, product resulting from the reaction of propylene oxide and ethylenediamine are suitable for use herein.
  • the hydrophobic moiety of these products consists of the reaction product of ethylenediamine and excess propylene oxide, and generally has a molecular weight of from 2500 to 3000.
  • this type of nonionic surfactant include certain of the commercially available TetronicTM compounds, marketed by BASF.
  • Suitable alkylpolysaccharides for use herein are disclosed in U.S. Pat. No. 4,565,647, Llenado, issued Jan. 21, 1986, having a hydrophobic group containing from 6 to 30 carbon atoms, preferably from 10 to 16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from 1.3 to 10, preferably from 1.3 to 3, most preferably from 1.3 to 2.7 saccharide units.
  • Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyl moieties can be substituted for the glucosyl moieties.
  • the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.
  • the intersaccharide bonds can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6- positions on the preceding saccharide units.
  • the preferred alkylpolyglycosides have the formula: R 2 O(C n H 2n O)t(glycosyl) x wherein R 2 is selected from the group consisting of alkyl, alkylphenyl, bydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18, preferably from 12 to 14, carbon atoms; n is 2 or 3, preferably from 1.3 to 3, most preferably from 1.3 to 2.7.
  • the glycosyl is preferably derived from glucose.
  • Fatty acid amide surfactants suitable for use herein are those having the formula: wherein R 6 is an alkyl group containing from 7 to 21, preferably from 9 to 17 carbon atoms and each R 7 is selected from the group consisting of hydrogen, C 1 -C 4 alkyl, C 1 -C 4 hydroxyalkyl, and --(C 2 H 4 O)x H, where x is in the range of from 1 to 3.
  • the hydrotrope useful in the present rinse aid dispersion is selected from the group consisting of sodium cumene sulfonate, sodium xylene sulfonate, sodium toluenesulfonate, dioctyl sodium sulfosuccinate, alkyl naphthalene sulfonate and dihexyl sodium sulfosuccinate.
  • the hydrotrope is sodium cumene sulfonate.
  • the low molecular weight polyacrylate polymer useful in the present acidic rinse aid dispersion is selected from the group consisting of polyacrylate homopolymer, polyacrylate copolymer, polyacrylate terpolymer, and mixtures thereof.
  • the polyacrylate polymer is a partially neutralized or non-neutralized polyacrylate polymer having a pH in a range of from 2.0 to 4.0.
  • the polyacrylate polymer is desirably at least 75% non-neutralized.
  • the polyacrylate polymer is non-neutralized.
  • a neutralized polyacrylate polymer, which is more than 25% neutralized may also be used, but an acid must be added in an amount sufficient to bring the pH value of the resultant rinse aid dispersion within a range of from 2 to 6.
  • the polyacrylate polymer is a homopolymer of acrylic or methacrylic acid, or a copolymer formed from at least 50 weight percent acrylic acid.
  • the polyacrylate polymer is a low molecular weight polymer or its alkali metal or ammonium salt, having a weight average molecular weight ranging from 1,000 to 50,000.
  • any acid may be used although organic acids are more desirable and the preferred organic acid is citric acid.
  • the stable rinse aid dispersion does not phase separate upon storage for a reasonable time or under actual use conditions and permits each component to effectively reduce spotting and filming and improve sheeting action without interfering with the foaming and defoaming action of the surfactant.
  • the rinse aid formulation of the invention is an aqueous dispersion at a pH of from 2 to 6.
  • the pH ranges from 3 to 5.
  • the rinse aid dispersion of the present invention is preferably prepared by stirring the desired amount of the surfactant into an aqueous solution of the low molecular weight non-neutralized or only partially neutralized (no more than 25% neutralized) polyacrylic acid followed by the gradual addition of the hydrotrope and if necessary, citric acid to bring the dispersion to within the desired pH range.
  • the formulation may also contain other additives including sequestants such as NTA, EDTA, or sodium citrate and water miscible solvents such as ethanol, isopropanol and propylene glycol.
  • sequestants such as NTA, EDTA, or sodium citrate
  • water miscible solvents such as ethanol, isopropanol and propylene glycol.
  • Ethanol is the preferred solvent, present desirably in a range of from 0.1% to 10% by weight of the rinse aid dispersion and preferably in a range of from 2% to 8% by weight.
  • the hydrotrope is selected from the group consisting of sodium cumene sulfonate, sodium xylene sulfonate, sodium toluenesulfonate, dioctyl sodium sulfosuccinate, alkyl naphthalene sulfonate and dihexyl sodium sulfosuccinate.
  • the hydrotrope is sodium cumene sulfonate
  • the partially-neutralized polyacrylate polymer is a polyacrylate copolymer which is about 20% neutralized.
  • the stable aqueous rinse aid dispersion is essentially free of a high molecular weight compatibilizing polymer and is also free of an additional nonionic surfactant having a cloud point of at least 70 degrees C.
  • a rinse aid dispersion according to the present invention is made as follows, from the following composition, by weight percent: Low foam nonionic surfactant 20.0% Sodium cumene sulfonate hydrotrope 7.0% Polyacrylate copolymer (20% neutralized) 4.5% Ethanol 6.0% Chelant (DTPA) 0.015% Liquitant Patent Blue 0.25% Water 62.235% This dye has ambient and UV light radiation stability and its color is unchanged after exposure to UV radiation for 1-2 days.
  • Another rinse aid dispersion according to the present invention is made as follows, from the following composition, by weight percent: Low foam nonionic surfactant 35.0% Sodium cumene sulfonate hydrotrope 4.0% Polyacrylate copolymer (20% neutralized) 4.0% Citric acid 1.6% Ethanol 6.0% Chelant (polyphosphonate) 0.015% FD&C Blue #1 0.25% Water 49.135% This dye has ambient and UV light radiation stability and its color is unchanged after exposure to UV radiation for 1-2 days.
  • Another rinse aid dispersion according to the present invention is made as follows, from the following composition, by weight percent: Low foam nonionic surfactant 12.0% Sodium cumene sulfonate hydrotrope 4.0% Polyacrylate copolymer (20% neutralized) 1.0% Citric acid 1.6% Ethanol 5.0% Chelant (polyphosphonate) 0.015% FD&C Blue #1 0.25% Water 76.135% This dye has ambient and UV light radiation stability and its color is unchanged after exposure to UV radiation for 1-2 days.
  • the above rinse aid formulations are prepared by the following procedure: appropriate amounts of: a low foaming nonionic surfactant (Plurafac LF 404TM), a 45% active sodium cumene sulfonate hydrotrope (45% active SCS), a 50% active polyacrylate copolymer (Acusol 480TM, made by Rohm & Haas), a 50% active citric acid, ethanol and deionized water are added to a beaker and stirred sequentially. Also added is a chelant in an amount of 0.015 weight% (150 ppm by weight) and a color dye as indicated.
  • the resulting mixture obtained is a blue or green colored, single-phase acidic dispersion and is stable, with no phase separation occurring after the resulting mixture is kept undisturbed in a closed container for a period of 2 weeks at a temperature of 50 degrees C. Further, the resulting mixture exhibits no more than about a 30% dye discoloration when exposed to ambient light for 6 months, and no more than about a 30% dye discoloration when exposed to UV light for 2 days.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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Claims (8)

  1. Procédé pour améliorer la stabilité d'un colorant utilisé dans une composition d'adjuvant de rinçage acide aqueuse colorée, vis-à-vis du rayonnement de la lumière ambiante et ultraviolette, caractérisé par les étapes consistant à:
    ajouter un agent chélatant choisi dans le groupe constitué par les aminocarboxylates, les aminophosphonates, les agents chélatants aromatiques à substitution polyfonctionnelle, et leurs mélanges, à une composition d'adjuvant de rinçage acide, ledit agent chélatant étant présent en une quantité d'au moins 1 ppm en poids de ladite composition d'adjuvant de rinçage.
  2. Procédé selon la revendication 1, dans lequel ledit agent chélatant est présent en une quantité d'au moins 50 ppm en poids de ladite composition d'adjuvant de rinçage.
  3. Procédé selon les revendications 1-2, dans lequel ledit agent chélatant est choisi dans le groupe constitué par un carboxylate d'acide éthylènediaminetétraacétique, un carboxylate d'acide diéthylènetriaminepentaacétique, et leurs mélanges.
  4. Procédé selon les revendications 1-3, dans lequel ledit agent chélatant est l'acide éthylènetriaminepentaphosphorique.
  5. Procédé selon les revendications 1-4, dans lequel ledit colorant est choisi dans le groupe constitué par la matière colorante phtalocyanine de cuivre, le colorant FD&C n° 1, les colorants polymères et leurs mélanges.
  6. Composition d'adjuvant de rinçage acide colorée présentant une meilleure stabilité d'un colorant utilisé dans ladite composition, vis-à-vis du rayonnement de la lumière ambiante et ultraviolette, caractérisée par:
    un tensioactif non ionique faiblement moussant, présent dans un intervalle de 2% à 80% en poids de ladite composition d'adjuvant de rinçage;
    un hydrotrope présent dans un intervalle de 0,5% à 20% en poids de ladite composition d'adjuvant de rinçage;
    un polymère de type polyacrylate présent dans un intervalle de 0,1% à 15% en poids de ladite composition d'adjuvant de rinçage, ledit polymère ayant une masse moléculaire moyenne en poids comprise dans un intervalle de 1000 à 50 000; et
    un agent chélatant choisi dans le groupe constitué par les aminocarboxylates, les aminophosphonates, les agents chélatants aromatiques à substitution polyfonctionnelle, et leurs mélanges, ledit agent chélatant étant présent en une quantité d'au moins 1 ppm en poids de ladite composition d'adjuvant de rinçage.
  7. Composition d'adjuvant de rinçage acide selon la revendication 6, dans laquelle ledit adjuvant de rinçage a un pH compris dans un intervalle de 2 à 7.
  8. Composition d'adjuvant de rinçage acide selon la revendication 6, incluant un acide présent dans un intervalle de 0,1% à 20% en poids de ladite composition d'adjuvant de rinçage.
EP00908319A 1999-01-22 2000-01-20 Procede servant a ameliorer la stabilite d'un colorant de formulations d'adjuvant de rin age acide et colore Expired - Lifetime EP1144583B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11687199P 1999-01-22 1999-01-22
US116871P 1999-01-22
PCT/US2000/001383 WO2000043486A1 (fr) 1999-01-22 2000-01-20 Procede servant a ameliorer la stabilite d'un colorant de formulations d'adjuvant de rinçage acide et colore

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EP1144583A1 EP1144583A1 (fr) 2001-10-17
EP1144583B1 true EP1144583B1 (fr) 2003-09-03

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EP (1) EP1144583B1 (fr)
JP (1) JP2002535448A (fr)
AT (1) ATE248906T1 (fr)
CA (1) CA2358871A1 (fr)
DE (1) DE60004965T2 (fr)
ES (1) ES2204523T3 (fr)
WO (1) WO2000043486A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP3101110B1 (fr) * 2006-01-23 2023-08-30 The Procter & Gamble Company Enzyme et compositions contenant un agent azurant les tissus
WO2013053390A1 (fr) * 2011-10-12 2013-04-18 Dequest Ag Composition de nettoyage ayant une propriété d'élimination des taches améliorée
WO2014060018A1 (fr) * 2012-10-16 2014-04-24 Ecolab Inc. Composition d'agent de rinçage peu moussante présentant des performances de séchage et de nettoyage améliorées
EP3253857B1 (fr) * 2015-02-03 2018-10-31 Basf Se Formulations aqueuses, leur fabrication et leur utilisation
EP3081626A3 (fr) 2015-04-13 2016-11-02 Henkel AG & Co. KGaA Procédé pour empêcher la décoloration de liquides colorés

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Publication number Priority date Publication date Assignee Title
GB8721936D0 (en) * 1987-09-18 1987-10-28 Rohm & Haas Composition
DE4316744A1 (de) * 1993-05-19 1994-11-24 Huels Chemische Werke Ag Klarspülmittel mit biologisch abbaubaren Polymeren
GB2285051A (en) * 1993-12-23 1995-06-28 Procter & Gamble Rinse aid composition
DE4401235A1 (de) * 1994-01-18 1995-07-20 Henkel Kgaa Klarspülmittel für die maschinelle Reinigung von Geschirr

Non-Patent Citations (1)

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Title
SCHICK, MARTIN: "NONIONIC SURFACTANTS", 1987, MARCEL DEKKER, INC, NEW YORK *

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ES2204523T3 (es) 2004-05-01
WO2000043486A1 (fr) 2000-07-27
JP2002535448A (ja) 2002-10-22
ATE248906T1 (de) 2003-09-15
DE60004965D1 (de) 2003-10-09
CA2358871A1 (fr) 2000-07-27
EP1144583A1 (fr) 2001-10-17
DE60004965T2 (de) 2004-07-22

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