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WO2025024158A1 - Composition pour lavage de vaisselle automatique - Google Patents

Composition pour lavage de vaisselle automatique Download PDF

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Publication number
WO2025024158A1
WO2025024158A1 PCT/US2024/038122 US2024038122W WO2025024158A1 WO 2025024158 A1 WO2025024158 A1 WO 2025024158A1 US 2024038122 W US2024038122 W US 2024038122W WO 2025024158 A1 WO2025024158 A1 WO 2025024158A1
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Prior art keywords
automatic dishwashing
dishwashing composition
dry weight
acid
carboxyalkyl
Prior art date
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Pending
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PCT/US2024/038122
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English (en)
Inventor
Scott BACKER
Paul Mercando
Ligeng YIN
Benjamin REINER
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Rohm and Haas Co
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Rohm and Haas Co
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Publication date
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Publication of WO2025024158A1 publication Critical patent/WO2025024158A1/fr
Pending legal-status Critical Current
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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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces

Definitions

  • the present invention relates to a dispersant polymer for use in automatic dish washing formulations.
  • the present invention relates to automatic dishwashing composition, comprising: 1 to 99 wt%, based on dry weight of the automatic dishwashing composition, of a builder; 0.2 to 15 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; and 0.5 to 9 wt%, based on dry weight of the automatic dishwashing composition, of a carboxyalkyl tamarind, wherein the carboxyalkyl tamarind has a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390 (as measured according to ASTM D1439-15).
  • Dishwashing compositions are generally recognized as a class of detergent compositions distinct from those used for fabric washing or water treatment. Dishwashing compositions are expected by users to produce a film-free appearance on washed articles after a complete cleaning cycle.
  • Phosphate-free dishwashing compositions are increasingly desirable. Phosphate-free dishwashing compositions typically rely on non-phosphate builders, such as salts of citrate, carbonate, silicate, disilicate, bicarbonate, aminocarboxylate, and others to sequester calcium and magnesium from hard water, and upon drying, leave an insoluble visible deposit.
  • non-phosphate builders such as salts of citrate, carbonate, silicate, disilicate, bicarbonate, aminocarboxylate, and others to sequester calcium and magnesium from hard water, and upon drying, leave an insoluble visible deposit.
  • a family of polycarboxylate copolymers and their use as builders in detergent compositions and rinse aid compositions is disclosed by Christopher et al. in U.S. Patent No. 5,431 ,846 for use in the final rinse step of a dish or warewashing machine.
  • Christopher et al. disclose block copolymers comprising from 20 to 95 mole % of monomer units derived from itaconic acid or a homologue thereof and from 5 to 80 mole % of monomer units derived from vinyl alcohol or a lower vinyl ester are excellent binders of divalent or polyvalent metals and are useful as potentially biodegradable builders in detergent compositions as well as in machine dishwashing compositions and anti-scaling rinse compositions.
  • a family of terpolymers and their use, among other things, as dispersants is disclosed by Swift et al in U.S. Patent No. 5,191,048.
  • Swift et al teach a terpolymer comprising as polymerized units from about 15 to 55 mole percent of at least one first monomer selected from the group consisting of vinyl acetate, vinyl ethers and vinyl carbonates, from about 10 to 70 mole percent of at least one second monomer of an ethylenically unsaturated monocarboxylic acid, and from about 15 to 55 mole percent of at least one third monomer of an anhydride of a dicarboxylic acid and wherein said terpolymer is formed in a non-aqueous system such that less than about one more percent of the monomers are hydrolyzed during said polymerization.
  • the present invention provides an automatic dishwashing composition, comprising: 1 to 99 wt%, based on dry weight of the automatic dishwashing composition, of a builder; 0.2 to 15 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; and 0.5 to 9 wt%, based on dry weight of the automatic dishwashing composition, of a carboxyalkyl tamarind, wherein the carboxyalkyl tamarind has a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390.
  • the present invention provides an automatic dishwashing composition, comprising: 30 to 60 wt%, based on dry weight of the automatic dishwashing composition, of a builder; 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; 3 to 7 wt%, based on dry weight of the automatic dishwashing composition, of a carboxyalkyl tamarind, wherein the carboxyalkyl tamarind has a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390; 1 to 53.5 wt%, based on dry weight of the automatic dishwashing composition, of a filler; 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of a bleaching agent; 2.5 to 7.5 wt%, based on dry weight of the automatic dishwashing composition, of a bleach activator; and 2 to 4 wt%, based on dry weight of the automatic dishwashing composition, of an enzyme.
  • the carboxyalkyl tamarind having a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390 provides good spotting and filming performance on glassware compared to conventional dispersant polymers, while having the benefit of improving the overall sustainability of the dishwashing detergent formulation (i.e., being biosourced and exhibiting improved biodegradability relative to conventional dispersant polymers such as poly acrylic acid).
  • Weight percentages (or wt%) in the composition are percentages of dry weight, i.e., excluding any water that may be present in the composition.
  • Percentages of monomer units in the polymer are percentages of dry weight, i.e., excluding any water present in a polymer emulsion.
  • the phrase "molecular weight” or MW refers to the weight average molecular weight as measured in a conventional manner with gel permeation chromatography (GPC) and conventional standards, such as polystyrene molecular weight standards.
  • GPC gel permeation chromatography
  • conventional standards such as polystyrene molecular weight standards.
  • GPC techniques are discussed in detail in Modern Size Exclusion Liquid Chromatography - Practice of Gel Permeation and Gel Filtration Chromatography, Second Edition, A.M. Striegel, W. W. Yau, J. J. Kirkland, D. D. Bly; John Wiley & Sons, Inc. 2009. Molecular weights are reported herein in units of Daltons, or equivalently, g/mol.
  • the automatic dishwashing composition of the present invention comprises: 1 to 99 wt% (preferably, 10 to 98 wt%; more preferably, 25 to 82.5 wt%; most preferably, 30 to 60 wt%), based on dry weight of the automatic dishwashing composition, of a builder (preferably, wherein the builder includes at least one of a carbonate, a bicarbonate, a citrate and a silicate); 0.2 to 15 wt% (preferably, 1 to 12 wt%; more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on dry weight of the automatic dishwashing composition, of a nonionic surfactant (preferably, wherein the nonionic surfactant is a fatty alcohol alkoxylate); and 0.5 to 9 wt% (preferably, 0.75 to 8 wt%; more preferably, 1 to 7.5 wt%; most preferably, 3 to 7 wt%), based on dry weight of the automatic dishwashing composition
  • the automatic dishwashing composition of the present invention comprises: a builder.
  • the builder used in the automatic dishwashing composition of the present invention comprises at least one of a carbonate, a citrate and a silicate.
  • the builder used in the automatic dishwashing composition of the present invention comprises at least one of sodium carbonate, sodium bicarbonate, sodium citrate and citric acid.
  • the automatic dishwashing composition of the present invention comprises: 1 to 99 wt% (preferably, 10 to 98 wt%; more preferably, 25 to 82.5 wt%; most preferably, 30 to 60 wt%), based on dry weight of the automatic dishwashing composition, of a builder.
  • the automatic dishwashing composition of the present invention comprises: > 1 wt% (preferably, > 10 wt%; more preferably, > 25 wt%; most preferably, > 30 wt%), based on dry weight of the automatic dishwashing composition, of the builder.
  • the automatic dishwashing composition of the present invention comprises: ⁇ 99 wt% (preferably, ⁇ 98 wt%; more preferably, ⁇ 82.5 wt%; most preferably, ⁇ 60 wt%), based on dry weight of the automatic dishwashing composition, of the builder. Weight percentages of carbonates, citrates and silicates are based on the actual weights of the salts, including metal ions.
  • carbonate(s) refers to alkali metal or ammonium salts of carbonate, bicarbonate, percarbonate, and/or sesquicarbonate.
  • the carbonate used in the automatic dishwashing composition is selected from the group consisting of carbonate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium).
  • Percarbonate used in the automatic dishwashing composition is selected from salts of sodium, potassium, lithium and ammonium (more preferably, salts of sodium or potassium; most preferably, salts of sodium).
  • the carbonate used in the automatic dishwashing composition includes at least one of sodium carbonate, sodium bicarbonate and sodium percarbonate.
  • the automatic dishwashing composition preferably, comprises 0 to 97 wt% (preferably, 5 to 75 wt%; more preferably, 10 to 60 wt%; most preferably 20 to 50 wt%), based on dry weight of the automatic dishwashing composition, of carbonate.
  • citrate(s) refers to alkali metal citrates and citric acid.
  • the citrate used in the automatic dishwashing composition is selected from the group consisting of citric acid and citrate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium). More preferably, the citrate used in the automatic dishwashing composition (if any) is sodium citrate and/or citric acid.
  • the automatic dishwashing composition preferably, comprises 0 to 97 wt% (preferably, 5 to 75 wt%; more preferably, 10 to 60 wt%; most preferably 20 to 40 wt%), based on dry weight of the automatic dishwashing composition, of the citrate.
  • silicate(s) refers to alkali metal silicates.
  • the silicate used in the automatic dishwashing composition (if any) is selected from the group consisting of silicate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium). More preferably, the silicate used in the automatic dishwashing composition (if any) is sodium disilicate.
  • the builder used in the automatic dishwashing composition of the present invention includes a silicate.
  • the automatic dishwashing composition preferably, comprises 0 to 97 wt% (preferably, 0.1 to 10 wt%; more preferably, 0.5 to 7.5 wt%; most preferably 0.75 to 3 wt%), based on dry weight of the automatic dishwashing composition, of the silicate(s).
  • the automatic dishwashing composition of the present invention comprises: 0.2 to 15 wt% (preferably, 1 to 12 wt%; more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on dry weight of the automatic dishwashing composition, of a nonionic surfactant.
  • the automatic dishwashing composition of the present invention comprises: 0.2 to 15 wt% (preferably, 1 to 12 wt%; more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the non-ionic surfactant is selected from the group consisting of polyoxyalkylene surfactants, polyalkylene glycol esters, polyoxyethylene derivatives of fatty acid esters of polyhydric alcohols, fatty acid esters of polyalkoxylated polyhydric alcohols, polyalkoxylated natural fats and oils, polyalkylene oxide block copolymers, alkyl poly glucosides, sucrose esters and mixtures thereof.
  • a nonionic surfactant is selected from the group consisting of polyoxyalkylene surfactants, polyalkylene glycol esters, polyoxyethylene derivatives of fatty acid esters of polyhydric alcohols, fatty acid esters of polyal
  • the automatic dishwashing composition of the present invention comprises: 0.2 to 15 wt% (preferably, 1 to 12 wt%; more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the non-ionic surfactant includes a fatty alcohol alkoxylate.
  • the automatic dishwashing composition of the present invention comprises: 0.2 to 15 wt% (preferably, 1 to 12 wt%; more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the non-ionic surfactant is a fatty alcohol alkoxylate according to formula III wherein w is an average of 5 to 100 (preferably, 6 to 75; more preferably, 7 to 60; most preferably, 8 to 50); wherein R 4 is selected from the group consisting of a hydrogen and a linear or branched C1-20 alkyl group (preferably, a hydrogen, and a linear or branched C1-20 alkyl group; more preferably, a hydrogen and a linear C1-20 alkyl group); wherein R 5 is selected from the group consisting of a linear or branched C1-20 alkyl group and a linear or branched C1-4 hydroxyalkyl group
  • the automatic dishwashing composition of the present invention comprises: 0.5 to 9 wt% (preferably, 0.75 to 8 wt%; more preferably, 1 to 7.5 wt%; most preferably, 3 to 7 wt%), based on dry weight of the automatic dishwashing composition, of a carboxyalkyl tamarind (preferably, wherein the carboxyalkyl is selected from the group consisting of carboxymethyl, carboxyethyl, carboxypropyl, carboxy butyl and mixtures thereof; more preferably, wherein the carboxyalkyl is selected from the group consisting of carboxymethyl, carboxyethyl and mistures thereof; most preferably, the carboxyalkyl is a carboxy methyl), wherein the carboxyalkyl tamarind has a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390 (preferably, 0.05 to 0.380; more preferably, 0.1 to 0.375; most preferably, 0.2 to 0.370) as measured according
  • the automatic dishwashing composition of the present invention comprises: 0.5 to 9 wt% (preferably, 0.75 to 8 wt%; more preferably, 1 to 7.5 wt%; most preferably, 3 to 7 wt%), based on dry weight of the automatic dishwashing composition, of a carboxyalkyl tamarind (preferably, wherein the carboxyalkyl is selected from the group consisting of carboxymethyl, carboxyethyl, carboxypropyl, carboxy butyl and mixtures thereof; more preferably, wherein the carboxyalkyl is selected from the group consisting of carboxymethyl, carboxyethyl and mistures thereof; most preferably, the carboxyalkyl is a carboxymethyl), wherein the carboxyalkyl tamarind has a carboxyalkyl degree of substitution, DSCA, of 0.01 to 0.390 (preferably, 0.05 to 0.380; more preferably, 0.1 to 0.375; most preferably, 0.2 to 0.370) as measured according to ASTM DI 4
  • the automatic dishwashing composition of the present invention optionally further comprises: an additive.
  • the automatic dishwashing composition of the present invention further comprises: an additive selected from the group consisting of a phosphonate (e.g., hydroxy ethylidene diphosphonic acid (HEDP)); an alkaline source; a bleaching agent (e.g., sodium percarbonate, sodium perborate); a bleach activator (e.g., tetraacetylethylenediamine (TAED)); a bleach catalyst (e.g., manganese(II) acetate, cobalt(II) chloride, bis(TACN)magnesium trioxide diacetate); an enzyme (e.g., protease, amylase, lipase, or cellulase); a foam suppressant; a coloring agent; a fragrance; an additional builder; an antibacterial agent; a filler; a deposit control polymer and mixtures thereof.
  • a phosphonate e.
  • the automatic dishwashing composition of the present invention further comprises an additive, wherein the additive is selected from the group consisting of a bleaching agent, a bleach activator, an enzyme, a filler and mixtures thereof. Still more preferably, the automatic dishwashing composition of the present invention, further comprises an additive, wherein the additive includes a bleaching agent (e.g., sodium percarbonate, sodium perborate); a bleach activator (e.g., tetraacetylethylenediamine (TAED)) and an enzyme (e.g., protease, amylase, lipase, or cellulase).
  • a bleaching agent e.g., sodium percarbonate, sodium perborate
  • TAED tetraacetylethylenediamine
  • an enzyme e.g., protease, amylase, lipase, or cellulase.
  • the automatic dishwashing composition of the present invention further comprises an additive, wherein the additive includes a bleaching agent, wherein the bleaching agent includes sodium percarbonate; a bleach activator, wherein the bleach activator includes tetraacetylethylenediamine (TAED); and an enzyme, wherein the enzyme includes a protease and an amylase.
  • the additive includes a bleaching agent, wherein the bleaching agent includes sodium percarbonate; a bleach activator, wherein the bleach activator includes tetraacetylethylenediamine (TAED); and an enzyme, wherein the enzyme includes a protease and an amylase.
  • the automatic dishwashing composition of the present invention optionally further comprises 0 to 15 wt% (preferably, 0.1 to 15 wt%; more preferably, 0.5 to 10 wt%; still more preferably, 0.75 to 7.5 wt%; most preferably, 1 to 5 wt%), based on dry weight of the automatic dishwashing composition, of a phosphonate.
  • the automatic dishwashing composition of the present invention comprises 0 to 15 wt% (preferably, 0.1 to 15 wt%; more preferably, 0.5 to 10 wt%; still more preferably, 0.75 to 7.5 wt%; most preferably, 1 to 5 wt%), based on dry weight of the automatic dishwashing composition, of a phosphonate; wherein the phosphonate has a weight average molecular weight of ⁇ 1,000 Daltons.
  • the automatic dishwashing composition of the present invention comprises 0 to 15 wt% (preferably, 0.1 to 15 wt%; more preferably, 0.5 to 10 wt%; still more preferably, 0.75 to 7.5 wt%; most preferably, 1 to 5 wt%), based on dry weight of the automatic dishwashing composition, of a phosphonate; wherein the phosphonate comprises at least one of 1 -hydroxy ethylidene- 1,1 -diphosphonic acid (HEDP) and a salt of 1-hydroxyethylidene- 1,1 -diphosphonic acid.
  • HEDP 1 -hydroxy ethylidene- 1,1 -diphosphonic acid
  • the automatic dishwashing composition of the present invention comprises 0 to 15 wt% (preferably, 0.1 to 15 wt%; more preferably, 0.5 to 10 wt%; still more preferably, 0.75 to 7.5 wt%; most preferably, 1 to 5 wt%), based on dry weight of the automatic dishwashing composition, of a phosphonate; wherein the phosphonate is selected from the group consisting of l-hydroxyethylidene-l,l-diphosphonic acid (HEDP) and salts thereof.
  • HEDP l-hydroxyethylidene-l,l-diphosphonic acid
  • Fillers included in automatic dishwashing composition tablets or powders are inert, water-soluble substances, typically sodium or potassium salts (e.g., sodium sulfate, potassium sulfate, sodium chloride, potassium cloride). In tablets and powders, fillers are typically present in amounts ranging from 0 wt% to 75 wt% (preferably, 1 to 53.5 wt%). Fillers included in gel formulations typically include those mentioned for use in tablets and powders and also water. Fragrances, dyes, foam suppressants, enzymes and antibacterial agents usually total no more than 10 wt%, alternatively no more than 5 wt%, of the automatic dishwashing composition.
  • sodium or potassium salts e.g., sodium sulfate, potassium sulfate, sodium chloride, potassium cloride.
  • Fillers included in gel formulations typically include those mentioned for use in tablets and powders and also water. Fragrances, dyes, foam suppressants, enzymes and antibacterial agents usually total no more than 10 w
  • the automatic dishwashing composition of the present invention optionally further comprises: an alkaline source.
  • alkaline sources include, without limitation, alkali metal carbonates and alkali metal hydroxides, such as sodium or potassium carbonate, bicarbonate, sesquicarbonate, sodium, lithium, or potassium hydroxide, or mixtures of the foregoing. Sodium hydroxide is preferred.
  • the amount of alkaline source in the automatic dishwashing composition of the present invention (if any) is at least 1 wt% (preferably, at least 20 wt%) and up to 80 wt% (preferably, up to 60 wt%), based on dry weight of the automatic dishwashing composition.
  • the automatic dishwashing composition of the present invention optionally further comprises: a bleaching agent (e.g., sodium percarbonate).
  • a bleaching agent e.g., sodium percarbonate.
  • the amount of the bleaching agent in the automatic dishwashing composition of the present invention is preferably at a concentration of 1 to 25 wt% (more preferably, 5 to 20 wt%), based on dry weight of the automatic dishwashing composition.
  • the automatic dishwashing composition of the present invention optionally further comprises: a bleach activator (e.g., tetraacetylethylenediamine (TAED)).
  • a bleach activator e.g., tetraacetylethylenediamine (TAED)
  • the amount of the bleach activator in the automatic dishwashing composition of the present invention is preferably at a concentration of 1 to 10 wt% (more preferably, 2.5 to 7.5 wt%), based on dry weight of the automatic dishwashing composition.
  • the automatic dishwashing composition of the present invention optionally further comprises: an enzyme (e.g., protease, amylase, lipase, cellulase). More preferably, the automatic dishwashing composition of the present invention, optionally further comprises: 0 to 10 wt% (preferably, 0.5 to 7.5 wt%; more preferably, 1 to 5 wt%; most preferably, 2 to 4 wt%), based on the dry weight of the automatic dishwashing composition, of an enzyme.
  • an enzyme e.g., protease, amylase, lipase, cellulase.
  • the automatic dishwashing composition of the present invention optionally further comprises: 0 to 10 wt% (preferably, 0.5 to 7.5 wt%; more preferably, 1 to 5 wt%; most preferably, 2 to 4 wt%), based on the dry weight of the automatic dishwashing composition, of an enzyme.
  • the automatic dishwashing composition of the present invention further comprises: 0 to 10 wt% (preferably, 0.5 to 7.5 wt%; more preferably, 1 to 5 wt%; most preferably, 2 to 4 wt%), based on the dry weight of the automatic dishwashing composition, of an enzyme, wherein the enzyme comprises a mixutre of protease and amylase.
  • the automatic dishwashing composition of the present invention comprises
  • the automatic dishwashing composition of the present invention is phosphate free.
  • the automatic dishwashing composition of the present invention comprises
  • ⁇ 1 wt% (preferably, ⁇ 0.5 wt%; more preferably, ⁇ 0.2 wt%; still more preferably, ⁇ 0.1 wt%; yet still more preferably, ⁇ 0.01 wt%; most preferably, ⁇ the detectable limit), based on dry weight of the automatic dishwashing composition, of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid;
  • the automatic dishwashing composition of the present invention contains 0 wt% of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid; 3-hydroxy-2,2’-iminodissuccinate;
  • builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid; 3-hydroxy-2,2’-iminodissuccinate;
  • the automatic dishwashing composition of the present invention comprises
  • the automatic dishwashing composition of the present invention is formate free.
  • the automatic dishwashing composition of the present invention has a pH (at 1 wt% in water) of at least 9 (preferably, > 10; more preferably, > 11.5).
  • the automatic dishwashing composition of the present invention has a pH (at 1 wt% in water) of no greater than 13.
  • the automatic dishwashing composition of the present invention can be formulated in any typical form, e.g., as a tablet, powder, block, monodose, sachet, paste, liquid or gel. More preferably, the automatic dishwashing composition of the present invention is formulated as a tablet, powder, granules or block. Most preferably, the automatic dishwashing composition of the present invention is formulated as a powder or granules (preferably, as granules).
  • the automatic dishwashing compositions of the present invention are useful for cleaning ware, such as eating and cooking utensils, dishes, in an automatic dishwashing machine.
  • the automatic dishwashing composition of the present invention is an anhydrous formulation. More preferably, the automatic dishwashing composition of the present invention is an anhydrous formulation containing ⁇ 10 wt% (preferably, ⁇ 5 wt%; more preferably, ⁇ 2 wt%; most preferably, ⁇ 1 wt%), based on weight of the automatic dishwashing composition, of water.
  • the automatic dishwashing composition of the present invention comprises ⁇ 1 wt% (preferably, ⁇ 0.5 wt%; more preferably, ⁇ 0.2 wt%; still more preferably, ⁇ 0.1 wt%; yet still more preferably, ⁇ 0.01 wt%; most preferably, ⁇ the detectable limit), based on dry weight of the automatic dishwashing composition, of phosphate (measured as elemental phosphorus).
  • the automatic dishwashing composition of the present invention is phosphate free.
  • the automatic dishwashing composition of the present invention are suitable for use under typical operating conditions.
  • typical water temperatures during the washing process preferably are from 20 °C to 85 °C, preferably 30 °C to 70 °C.
  • Typical concentrations for the automatic dishwashing composition as a percentage of total liquid in the dishwasher preferably are from 0.02 to 1 wt% (more preferably from 0.03 to 0.7 wt%).
  • the automatic dishwashing compositions of the present invention may be present in the prewash, main wash, penultimate rinse, final rinse, or any combination of these cycles.
  • Dishwashing compositions were prepared in each of Comparative Examples C1-C2 and Example 1 having the component formulations identified in TABLE 1.
  • the STIWA food soil described in TABLE 2 was prepared by the following procedure. a) Bringing the water to a boil. b) Mixing in a paper cup the instant gravy, the benzoic acid and the starch; and then adding the mixture to the boiling water. c) Adding the milk and margarine to the product of (b). d) Letting the product of (c) cool down to approximately 40 °C, and then adding mixture to a kitchen mixer (Polytron). e) Combining in another paper cup, the egg yolk, the ketchup and the mustard and mixing with a spoon. f) Adding the product of (e) to the mixture of (d) in the blender with continuous stirring. g) Letting the product of (f) stir in the blender for 5 minutes. h) The freezing the product food soil mixture from (g). i) 50 g of the frozen slush is placed into the dishwasher at beginning of the main wash.
  • Machine Miele SS-ADW, Model G1223SC Labor. Wash at 65 °C - 30 min wash cycle, followed by two rinse cycles with a rinse water temperature of 65 °C and a final 30 minute drying step. After the drying cycle was complete, the dishwasher door was opened for 30 minutes to allow the steam to evaporate.
  • Water initial water supplied to the dishwasher had a target conductivity of 1,260 to 1,360 ps/cm.
  • Food soil 50 g of the composition noted in TABLE 2 was introduced to the wash liquor frozen in a cup. Each dishwashing composition from Comparative Examples C1-C2 and Example 1 were tested. The food soil was added at the beginning of the wash cycle.
  • the test detergents were also charged to the dishwasher at the beginning of the wash cycle. The test detergents were each dosed at 15.29 g per wash (based on solids). The number of wash cycles used in this experiment to generate filming and spotting was 15.

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Abstract

L'invention concerne une composition pour lavage de vaisselle automatique comprenant de 1 à 99 % en poids, sur la base du poids sec de la composition pour lavage de vaisselle automatique, d'un adjuvant de détergence ; de 0,2 à 15 % en poids, sur la base du poids sec de la composition pour lavage de vaisselle automatique, d'un tensioactif non ionique ; et de 0,5 à 9 % en poids, sur la base du poids sec de la composition pour lavage de vaisselle automatique, d'un carboxyalkyle tamarin, le carboxyalkyle tamarin ayant un degré de substitution carboxyalkyle, DSCA, de 0,01 à 0,390 (tel que mesuré selon la norme ASTM D1439-15).
PCT/US2024/038122 2023-07-27 2024-07-16 Composition pour lavage de vaisselle automatique Pending WO2025024158A1 (fr)

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US5431846A (en) 1993-05-20 1995-07-11 Lever Brothers Company, Division Of Conopco, Inc. Copolymers and detergent compositions containing them
WO2004061067A2 (fr) * 2002-12-19 2004-07-22 The Procter & Gamble Company Materiaux, compositions et procedes anti-pellicules
CN111822304A (zh) * 2020-05-15 2020-10-27 江苏兴齐智能输电科技有限公司 钢杆管表面处理工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191048A (en) 1991-02-01 1993-03-02 Rohm & Haas Company Biodegradable free-radical addition polymers
US5431846A (en) 1993-05-20 1995-07-11 Lever Brothers Company, Division Of Conopco, Inc. Copolymers and detergent compositions containing them
WO2004061067A2 (fr) * 2002-12-19 2004-07-22 The Procter & Gamble Company Materiaux, compositions et procedes anti-pellicules
CN111822304A (zh) * 2020-05-15 2020-10-27 江苏兴齐智能输电科技有限公司 钢杆管表面处理工艺

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Title
A.M. STRIEGELW. W. YAUJ. J. KIRKLANDD. D. BLY: "Modern Size Exclusion Liquid Chromatography - Practice of Gel Permeation and Gel Filtration Chromatography", 2009, JOHN WILEY & SONS, INC.

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