WO2024031507A1 - Compositions détergentes à efficacité anti-tartre améliorée - Google Patents

Compositions détergentes à efficacité anti-tartre améliorée Download PDF

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WO2024031507A1
WO2024031507A1 PCT/CN2022/111671 CN2022111671W WO2024031507A1 WO 2024031507 A1 WO2024031507 A1 WO 2024031507A1 CN 2022111671 W CN2022111671 W CN 2022111671W WO 2024031507 A1 WO2024031507 A1 WO 2024031507A1
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composition
acid
salt
ppm
scale
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PCT/CN2022/111671
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English (en)
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Zhenbo Gao
Xin Lu
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Ecolab Usa Inc.
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Priority to PCT/CN2022/111671 priority Critical patent/WO2024031507A1/fr
Priority to CN202310977688.8A priority patent/CN117586836A/zh
Publication of WO2024031507A1 publication Critical patent/WO2024031507A1/fr

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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
    • C11D3/36—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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • 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
    • C11D3/37—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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/12—Carbonates bicarbonates
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/36—Organic compounds containing phosphorus
    • 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 disclosure relates generally to detergent compositions and methods of using the compositions.
  • the compositions containing scale-inhibiting organic phosphonates, additional scale inhibitor comprising at least one polycarboxylate, polycarboxylic acid, or salt thereof, and an alkalinity source provide effective cleaning and enhanced antiscaling performance compared to traditional detergent compositions.
  • Hard water is known to reduce the efficacy of conventional alkaline detergents.
  • Detergents include chelating agents or sequestrants that are intended to be mixed with hard water in an amount sufficient to handle the hardness and also prevent scaling.
  • water hardness exceeds the chelating capacity of the composition.
  • free calcium ions may be available to cause precipitation, or to attack active components of the composition causing other deleterious effects, such as poor cleaning effectiveness or lime scale build up. Therefore, the improvement in antiscaling performance remains a critical need.
  • Scaling causes significant interruptions in cleaning. In particular in areas having high water hardness scaling issues can present extreme challenges. For example, descaling steps, such as treatment with acid washes, may be required on occasion. The reduction of descaling frequency will save labor time and costs, freight and energy.
  • detergent compositions comprise: a scale-inhibiting organic phosphonate having one of the following structures:
  • Y is or a salt thereof
  • Y’ is absent, or a salt thereof
  • X is N, O, or OH
  • R 1 and R 2 are independently a linear or branched C1-C10 alkyl group
  • R 3 is -N (Y) 2 ;
  • n 1-20;
  • an additional scale inhibitor comprising at least one polycarboxylate, polycarboxylic acid, or salt thereof; an alkalinity source comprising an alkali metal hydroxide; and water.
  • methods of using a detergent composition comprise: providing a detergent composition as described herein; contacting the detergent composition with water to form a use solution; and contacting the use solution to a surface in need of cleaning and antiscaling.
  • Figure 1 shows a graph depicting %inhibition of scaling with the evaluated detergent compositions as described herein and in Example 1.
  • Figures 2A-2C shows photographs of glasses treated with a detergent composition as described in Example 2.
  • range such as from 1 to 6 should be considered to have specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 3, 4, 5, and 6, and decimals and fractions, for example, 1.2, 3.8, 11/2, and 43/4. This applies regardless of the breadth of the range.
  • the term “and/or” e.g., “X and/or Y” shall be understood to mean either “X and Y" or "X or Y” and shall be taken to provide explicit support for both meanings or for either meaning, e.g. A and/or B includes the options i) A, ii) B or iii) A and B.
  • compositions of the present disclosure may comprise, consist essentially of, or consist of the components and ingredients of the present disclosure as well as other ingredients described herein.
  • “consisting essentially of” means that the methods, systems, apparatuses and compositions may include additional steps, components or ingredients, but only if the additional steps, components or ingredients do not materially alter the basic and novel characteristics of the claimed methods, systems, apparatuses, and compositions.
  • invention or “present invention” are not intended to refer to any single embodiment of the particular invention but encompass all possible embodiments as described in the specification and the claims.
  • actives or “percent actives” or “percent by weight actives” or “actives concentration” are used interchangeably herein and refers to the concentration of those ingredients involved in cleaning expressed as a percentage minus inert ingredients such as water or salts. It is also sometimes indicated by a percentage in parentheses, for example, “chemical (10%) . ”
  • alkyl or “alkyl groups” refers to saturated hydrocarbons having one or more carbon atoms, including straight-chain alkyl groups (e.g., methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, etc. ) , cyclic alkyl groups (or “cycloalkyl” or “alicyclic” or “carbocyclic” groups) (e.g., cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, etc.
  • straight-chain alkyl groups e.g., methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, etc.
  • cyclic alkyl groups or “cycl
  • alkyl-substituted alkyl groups e.g., alkyl-substituted cycloalkyl groups and cycloalkyl-substituted alkyl groups.
  • alkyl includes both “unsubstituted alkyls” and “substituted alkyls. ” As used herein, the term “substituted alkyls” refers to alkyl groups having substituents replacing one or more hydrogens on one or more carbons of the hydrocarbon backbone.
  • substituents may include, for example, alkenyl, alkynyl, halogeno, hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato, cyano, amino (including alkyl amino, dialkylamino, arylamino, diarylamino, and alkylarylamino) , acylamino (including alkylcarbonylamino, arylcarbonylamino, carbamoyl and ureido) , imino, sulfhydryl, alkylthio, arylthio, thiocarbox
  • substituted alkyls can include a heterocyclic group.
  • heterocyclic group includes closed ring structures analogous to carbocyclic groups in which one or more of the carbon atoms in the ring is an element other than carbon, for example, nitrogen, sulfur or oxygen. Heterocyclic groups may be saturated or unsaturated.
  • heterocyclic groups include, but are not limited to, aziridine, ethylene oxide (epoxides, oxiranes) , thiirane (episulfides) , dioxirane, azetidine, oxetane, thietane, dioxetane, dithietane, dithiete, azolidine, pyrrolidine, pyrroline, oxolane, dihydrofuran, and furan.
  • aziridine ethylene oxide (epoxides, oxiranes) , thiirane (episulfides) , dioxirane, azetidine, oxetane, thietane, dioxetane, dithietane, dithiete, azolidine, pyrrolidine, pyrroline, oxolane, dihydrofuran, and furan.
  • the term “configured” describes structure capable of performing a task or adopting a particular configuration.
  • the term “configured” can be used interchangeably with other similar phrases, such as constructed, arranged, adapted, manufactured, and the like.
  • exemplary refers to an example, an instance, or an illustration, and does not indicate a most preferred embodiment unless otherwise stated.
  • food processing surface refers to a surface of a tool, a machine, equipment, a structure, a building, or the like that is employed as part of a food processing, preparation, or storage activity.
  • food processing surfaces include surfaces of food processing or preparation equipment (e.g., slicing, canning, or transport equipment, including flumes) , of food processing wares (e.g., utensils, dishware, wash ware, and bar glasses) , and of floors, walls, or fixtures of structures in which food processing occurs.
  • Food processing surfaces are found and employed in food anti-spoilage air circulation systems, aseptic packaging sanitizing, food refrigeration and cooler cleaners and sanitizers, ware washing sanitizing, blancher cleaning and sanitizing, food packaging materials, cutting board additives, third-sink sanitizing, beverage chillers and warmers, meat chilling or scalding waters, autodish sanitizers, sanitizing gels, cooling towers, food processing antimicrobial garment sprays, and non-to-low-aqueous food preparation lubricants, oils, and rinse additives.
  • the term "free" refers to compositions completely lacking the component or having such a small amount of the component that the component does not affect the performance of the composition.
  • the component may be present as an impurity or as a contaminant and shall be less than about 0.1 wt-%and in yet another embodiment, the amount of component is less than about 0.01 wt-%, or 0 wt-%.
  • hard surface refers to a solid, substantially non-flexible surface such as a counter top, tile, floor, wall, panel, window, plumbing fixture, kitchen and bathroom furniture, appliance, engine, circuit board, dish, mirror, window, monitor, touch screen, and thermostat.
  • Hard surfaces are not limited by the material; for example, a hard surface can be glass, metal, tile, vinyl, linoleum, composite, wood, plastic, etc. Hard surfaces may include for example, health care surfaces and food processing surfaces.
  • the term “instrument” refers to the various medical or dental instruments or devices that can benefit from cleaning with a composition as described herein.
  • the phrases “medical instrument, ” “dental instrument, ” “medical device, ” “dental device, ” “medical equipment, ” or “dental equipment” refer to instruments, devices, tools, appliances, apparatus, and equipment used in medicine or dentistry. Such instruments, devices, and equipment can be cold sterilized, soaked or washed and then heat sterilized, or otherwise benefit from cleaning in a composition of the present disclosure.
  • These various instruments, devices and equipment include, but are not limited to: diagnostic instruments, trays, pans, holders, racks, forceps, scissors, shears, saws (e.g.
  • polymer refers to a molecular complex comprised of a more than ten monomeric units and generally includes, but is not limited to, homopolymers, copolymers, such as for example, block, graft, random and alternating copolymers, terpolymers, and higher "x" mers, further including their analogs, derivatives, combinations, and blends thereof.
  • polymer shall include all possible isomeric configurations of the molecule, including, but are not limited to isotactic, syndiotactic and random symmetries, and combinations thereof.
  • polymer shall include all possible geometrical configurations of the molecule.
  • soil refers to any soil, including, but not limited to, non-polar oily and/or hydrophobic substances which may or may not contain particulate matter such as industrial soils, mineral clays, sand, natural mineral matter, carbon black, graphite, kaolin, environmental dust, and/or food based soils such as blood, proteinaceous soils, starchy soils, fatty soils, cellulosic soils, etc.
  • non-polar oily and/or hydrophobic substances which may or may not contain particulate matter such as industrial soils, mineral clays, sand, natural mineral matter, carbon black, graphite, kaolin, environmental dust, and/or food based soils such as blood, proteinaceous soils, starchy soils, fatty soils, cellulosic soils, etc.
  • substantially refers to a great or significant extent. “Substantially” can thus refer to a plurality, majority, and/or a supermajority of said quantifiable variable, given proper context.
  • surfactant or "surface active agent” refers to an organic chemical that when added to a liquid changes the properties of that liquid at a surface.
  • ware refers to items such as eating and cooking utensils, dishes, and other hard surfaces such as showers, sinks, toilets, bathtubs, countertops, windows, mirrors, transportation vehicles, and floors.
  • warewashing refers to washing, cleaning, or rinsing ware. Ware also refers to items made of plastic.
  • Types of plastics that can be cleaned with the compositions include but are not limited to, those that include polypropylene polymers (PP) , polycarbonate polymers (PC) , melamine formaldehyde resins or melamine resin (melamine) , acrylonitrile-butadiene-styrene polymers (ABS) , and polysulfone polymers (PS) .
  • Other exemplary plastics that can be cleaned using the compounds and compositions of the disclosure include polyethylene terephthalate (PET) polystyrene polyamide.
  • weight percent, " wt-%, “percent by weight, “ “%by weight, “ and variations thereof, as used herein, refer to the concentration of a substance as the weight of that substance divided by the total weight of the composition and multiplied by 100. It is understood that, as used here, “percent, “ “%, “ and the like are intended to be synonymous with “weight percent, " “wt-%, “ etc.
  • the detergent compositions include an organic phosphonate, an additional scale inhibitor that is a polycarboxylate, polycarboxylic acid, or salt thereof, alkalinity source, and water.
  • the detergent compositions can include additional functional ingredients and can be provided as concentrate or use compositions. Exemplary compositions are shown in Tables 1A (solid) and 1B (liquid) in weight percentage. While the components may have a percent actives of 100%, it is noted that Tables 1A-1B do not recite the percent actives of the components, but rather, recites the total weight percentage of the raw materials (i.e. active concentration plus inert ingredients) .
  • the detergent compositions are preferably solid compositions.
  • a solid detergent composition encompasses a variety of forms including, for example, solids, pellets, blocks, tablets, and powders.
  • pellets can have diameters of between about 1 mm and about 10 mm
  • tablets can have diameters of between about 1 mm and about 10 mm or between about 1 cm and about 10 cm
  • blocks can have diameters of at least about 10 cm.
  • solid refers to the state of the composition under the expected conditions of storage and use of the solid cleaning composition. In general, it is expected that the detergent composition will remain a solid when provided at a temperature of up to about 100°F or lower than about 120°F.
  • the solid cleaning composition is provided in the form of a unit dose.
  • a unit dose refers to a solid cleaning composition unit sized so that the entire unit is used during a single cycle, for example, a single washing cycle of a warewash machine.
  • the solid cleaning composition can have a mass of about 1 g to about 50 g.
  • the composition can be a solid, a pellet, or a tablet having a size of about 50 g to 250 g, of about 100 g or greater, or about 40 g to about 11,000 g.
  • the solid cleaning composition is provided in the form of a multiple-use solid, such as, a block or a plurality of pellets, and can be repeatedly used to generate aqueous cleaning compositions for multiple washing cycles.
  • the solid cleaning composition is provided as a solid having a mass of about 5 g to about 10 kg.
  • a multiple-use form of the solid cleaning composition has a mass of about 1 to about 10 kg.
  • a multiple-use form of the solid cleaning composition has a mass of about 5 kg to about 8 kg.
  • a multiple-use form of the solid cleaning composition has a mass of about 5 g to about 1 kg, or about 5 g and to about 500 g.
  • the solids is a cast, pressed, or extruded solid.
  • the components can be mixed and extruded or cast to form a solid such as pellets, powders or blocks. Heat can be applied from an external source to facilitate processing of the mixture.
  • the detergent compositions can also include liquid compositions. Any form of a liquid composition can be provided, including concentrate compositions.
  • the detergent compositions comprise an organic phosphonate.
  • Organic phosphonates are organic derivatives of phosphonic acid, HP (O) (OH) 2 .
  • the organic phosphonates preferably contain a single C-N bond adjacent (vicinal) to the C-P bond, unlike conventional organic phosphonate scale inhibitors, such as 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP) or 2-Phosphonobutane-1, 2, 4-tricarboxylic acid (PBTC) .
  • Organic phosphonates have one of the following general structures:
  • Y is or a salt thereof
  • Y’ is absent, or a salt thereof
  • X is N, O, or OH
  • R 1 and R 2 are independently a linear or branched C1-C10 alkyl group
  • R 3 is -N (Y) 2 ;
  • n 1-20.
  • the salt form of Y or Y’ is preferably a suitable cation, such as sodium or potassium.
  • organic phosphonates are particularly suitable for use in antiscaling in ware washing applications, including detergent applications.
  • a preferred class of organic phosphonates include polyether phosphonic acids, including polyamino polyether methylene phosphonic acid and polyamino polyether methylene phosphonates such as the those having the following structure: wherein Z is independently H or CH 3 , and wherein n is 2-12.
  • the organic phosphonate is PAPEMP ( (HO) 2 P (O) CH 2 ) 2 NCH (CH 3 ) CH 2 (OCH 2 CH (CH 3 ) 2 N (CH 2 ) 6 N (CH 2 P (O) (OH) 2 ) 2 ) having the structure:
  • Additional exemplary organic phosphonates include the structures:
  • Still further exemplary organic phosphonates include HMDTMP ( (HO) 2 P (O) CH 2 ) 2 N (CH 2 ) 6 N (CH 2 2P (O) (OH) 2 ) 2 ) having the structure: and the like.
  • Still further exemplary organic phosphonates include DTMPA ( (HO) 2 P (O) CH 2 N [CH 2 CH 2 N (CH 2 P (O) (OH) 2 ) 2 ] 2 ) having the structure:
  • a further preferred class of organic phosphonates include alkylene oxide phosphonates. Any combination of the foregoing scale inhibitors may be used and salts of any of these compounds can be used as well, such as ammonium salts. In some embodiments, the foregoing scale inhibitors can further be combined with conventional phosphonates. Examples of phosphonates include, but are not limited to: phosphinosuccinic acid oligomer (PSO) described in U.S. Patent No.
  • PBTC 2-phosphonobutane-l, 2, 4-tricarboxylic acid
  • PBTC 1-hydroxyethane-l, 1-diphosphonic acid, HEDP, aminotri (methylenephosphonic acid)
  • 2-hydroxyethyliminobis methylenephosphonic acid
  • diethylenetriaminepenta methylenephosphonic acid
  • diethylenetriaminepenta methylenephosphonate
  • sodium salt DTPMP
  • hexamethylenediamine tetramethylenephosphonate
  • potassium salt bis hexamethylene) triamine
  • the organic phosphonate is included in the solid detergent composition at an amount of at least about 1 wt-%to about 30 wt-%, about 1 wt-%to about 25 wt-%, about 1 wt-%to about 20 wt-%, about 1 wt-%to about 15 wt-%, about 1 wt-%to about 10 wt-%, or about 1 wt-%to about 8 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the organic phosphonate is included in the liquid detergent composition at an amount of at least about 1 wt-%to about 30 wt-%, about 1 wt-%to about 25 wt-%, about 1 wt-%to about 20 wt-%, about 1 wt-%to about 15 wt-%, about 1 wt-%to about 10 wt-%, or about 1 wt-%to about 8 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the organic phosphonate according to the formulae and various structures disclosed herein is a phosphonate or a salt thereof, including a cation.
  • the organic phosphonate does not include any betaine or polybetaine structures, such that there is a charge separated, neutral molecule.
  • the organic phosphonate does not include ATMP (aminotris (methylenephosphonic acid) with chemical formula N (CH 2 PO 3 H 2 ) 3 ) .
  • the organic phosphonate does not include PBTC (2-Phosphonobutane-1, 2, 4-tricarboxylic acid) .
  • the detergent compositions comprises at least one additional scale inhibitor comprising a polycarboxylate, polycarboxylic acid, or salt thereof.
  • a polycarboxylate, polycarboxylic acid, or salt thereof Beneficially the combination of the organic phosphonate and the polycarboxylate, polycarboxylic acid, or salt thereof provides synergistic improvement in antiscaling over conventional antiscaling or threshold inhibitors used for antiscaling and hard water treatment in detergent compositions.
  • Exemplary polycarboxylates that can be used as scale inhibitors include, but are not limited to: those having pendant carboxylate (--CO 2 -) groups such as polyacrylic acid, maleic acid, maleic/olefin copolymer, sulfonated copolymer or terpolymer, acrylic/maleic copolymer, polymethacrylic acid, acrylic acid-methacrylic acid copolymers, hydrolyzed polyacrylamide, hydrolyzed polymethacrylamide, hydrolyzed polyamide-methacrylamide copolymers, hydrolyzed polyacrylonitrile, hydrolyzed polymethacrylonitrile, and hydrolyzed acrylonitrile-methacrylonitrile copolymers.
  • pendant carboxylate (--CO 2 -) groups such as polyacrylic acid, maleic acid, maleic/olefin copolymer, sulfonated copolymer or terpolymer, acrylic/maleic copolymer, polymethacryl
  • suitable additional polymers include polyacrylic acid, polymethacrylic acid, polymaleic acid homopolymers, copolymers of acrylic methacrylic or maleic acids (and combinations thereof) .
  • a preferred group of polycarboxylates include polycarboxylic acid polymers (e.g. Acusol polymers) , including polyacrylic acid homopolymers and polymaleic acid homopolymers, and polymers modified by a fatty acid end group.
  • Exemplary polyacrylic acid homopolymers include those with a molecular weight between about 500-100,000 g/mol, or between about 1,000-50,000 g/mol, or between about 1,000-25,000 g/mol.
  • polycarboxylate homopolymers, copolymers and terpolymers are known and described in patent and other literature, and are available commercially.
  • Exemplary polycarboxylates that may be utilized include for example: homopolymers, copolymers and terpolymers of polyacrylates; polymethacrylates; polymaleates.
  • Suitable polymers include acrylic acid homopolymers, maleic acid homopolymers, methacrylic acid homopolymers, acrylic/maleic copolymers, maelic acid copolymers, acrylic/methacrylic copolymers, maleic acid terpolymers, hydrophobically modified acrylic acid copolymers and terpolymers, hydrophobically modified maleic acid copolymers and terpolymers, hydrophobically modified methacrylic acid copolymers and terpolymers.
  • Suitable polymers preferably have a molecular weight between about 500 to about 50,000 g/mol, more preferably between about 500 and about 25,000 g/mol and particularly between about 500 and about 10,000 g/mol.
  • polycarboxylic acids are acyclic, alicyclic, heterocyclic and aromatic carboxylic acids, in which case they contain at least two carboxyl groups which are in each case separated from one another by, preferably, no more than two carbon atoms.
  • Polycarboxylates which comprise two carboxyl groups include, for example, water-soluble salts of, malonic acid, (ethyl enedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid.
  • Polycarboxylates which contain three carboxyl groups include, for example, water-soluble citrate.
  • a suitable hydroxycarboxylic acid is, for example, citric acid.
  • Another suitable polycarboxylic acid is the homopolymer of acrylic acid. Polycarboxylates can further be end capped with sulfonates.
  • the detergent composition include more than one additional scale inhibitor comprising a polycarboxylate, polycarboxylic acid, or salt thereof. In some embodiments the detergent composition includes two additional scale inhibitor comprising a polycarboxylate, polycarboxylic acid, or salt thereof. In further preferred embodiments the detergent composition includes a polyacrylic acid and a polymaleic acid.
  • the additional scale inhibitor (s) is included in the solid detergent composition at an amount of at least about 0 wt-%to about 20 wt-%, about 1 wt-%to about 20 wt-%, about 1 wt-%to about 15 wt-%, about 1 wt-%to about 10 wt-%, about 1 wt-%to about 8 wt-%, or about 2 wt-%to about 8 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the additional scale inhibitor (s) is included in the solid detergent composition at an amount of at least about 0 wt-%to about 20 wt-%, about 1 wt-%to about 20 wt-%, about 1 wt-%to about 15 wt-%, about 1 wt-%to about 10 wt-%, about 1 wt-%to about 8 wt-%, or about 1 wt-%to about 6 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the detergent compositions do not include carboxylic acid terpolymers.
  • the detergent composition comprises one or more alkalinity sources.
  • the source of alkalinity can be any source of alkalinity that is compatible with the other components of the detergent composition.
  • the alkalinity source comprises an alkali metal hydroxide.
  • Preferred sources of alkalinity include alkali metal hydroxides, including sodium hydroxide, potassium hydroxide, and lithium hydroxide or mixtures thereof, and most preferred is sodium hydroxide and/or potassium hydroxide.
  • alkali metal hydroxide alkalinity sources that can be combined with the alkali metal hydroxide include alkali metal carbonates, alkali metal silicates, alkali metal salts, phosphates, amines, and mixtures thereof.
  • the alkali metal hydroxide alkalinity source is combined with a secondary source of alkalinity comprising an alkali metal carbonate.
  • the alkalinity source is included in the solid detergent composition at an amount of at least about 10 wt-%to about 90 wt-%, or about 10 wt-%to about 80 wt-%, about 20 wt-%to about 80 wt-%, about 30 wt-%to about 80 wt-%, about 40 wt-%to about 80 wt-%, or about 50 wt-%to about 80 wt-%.
  • the total amount of alkalinity source to (alkalinity source plus water) is about 60-80% (e.g. alkalinity / (water + alkalinity) and the solid maintains stability.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the alkalinity source is included in the liquid detergent composition at an amount of at least about 5 wt-%to about 80 wt-%, about 10 wt-%to about 70 wt-%, about 10 wt-%to about 60 wt-%, about 10 wt-%to about 50 wt-%, or about 10 wt-%to about 40 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the detergent compositions may comprise water in amounts that vary depending upon techniques for processing the solid composition.
  • Water provides a medium which dissolves, suspends, or carries the other components of the composition. Water can also function to deliver and wet the composition on an object.
  • water makes up a remainder portion of the detergent compositions and may be the balance of the detergent composition apart from the scale- inhibiting organic phosphonate, additional scale inhibitor, source of alkalinity and any additional functional ingredients.
  • the water amount and type will depend upon the nature of the composition as a whole, the environmental storage, and method of application including concentration composition, form of the composition, and intended method of deliver, among other factors.
  • the carrier should be chosen and used at a concentration which does not inhibit the efficacy of the functional components in the composition of the invention for the intended use, e.g., bleaching, sanitizing, cleaning.
  • the solid detergent composition includes about 1 wt-%to about 30 wt-%water, about 5 wt-%to about 30 wt-%water, or about 10 wt-%to about 30 wt-%water. It is to be understood that all values and ranges between these values and ranges are encompassed by the present invention.
  • the liquid detergent composition includes about 30 wt-%to about 90 wt-%water, about 40 wt-%to about 90 wt-%water, or about 50 wt-%to about 90 wt-%water. It is to be understood that all values and ranges between these values and ranges are encompassed by the present invention.
  • the detergent compositions can further be combined with various functional components suitable for uses disclosed herein.
  • the detergent compositions including the scale-inhibiting organic phosphonate, additional scale inhibitor comprising at least one polycarboxylate, polycarboxylic acid, or salt thereof, and an alkalinity source make up a large amount, or even substantially all of the total weight of the compositions.
  • the detergent compositions including the scale-inhibiting organic phosphonate, additional scale inhibitor comprising at least one polycarboxylate, polycarboxylic acid, or salt thereof, an alkalinity source, and/or at least one additional functional ingredient make up a large amount, or even substantially all of the total weight of the compositions.
  • few or no additional functional ingredients are disposed therein.
  • additional functional ingredients may be included in the detergent compositions.
  • the functional ingredients provide desired properties and functionalities to the compositions.
  • the term "functional ingredient” includes a material that when dispersed or dissolved in a use and/or concentrate solution, such as an aqueous solution, provides a beneficial property in a particular use.
  • the detergent compositions may include optical brighteners, defoaming agents, anti-redeposition agents, bleaching agents, solubility modifiers, dispersants, metal protecting agents, stabilizing agents, hardening agents, fillers, preservatives, corrosion inhibitors, builders/sequestrants/chelating agents, enzymes, aesthetic enhancing agents including fragrances and/or dyes, additional rheology and/or solubility modifiers or thickeners, hydrotropes or couplers, buffers, solvents, additional cleaning agents, including surfactants, and the like.
  • additional cleaning agents may be included in the detergent composition.
  • the detergent composition and the additional cleaning agent does not include an alkanolamines, including ethanolamine, and/or taurine.
  • the detergent composition does not include polyethylene glycols.
  • the detergent composition and the additional cleaning agent does not include surfactants or does not include alcohol alkoxylates, including alcohol ethoxylates, alcohol ethoxylate polyoxyethylene ethers.
  • the various additional functional ingredients may be provided in a composition in the amount from about 0 wt-%and about 30 wt-%, from about 0 wt-%and about 25 wt-%, from about 0 wt-%and about 20 wt-%, from about 0.01 wt-%and about 30 wt-%, from about 0.1 wt-%and about 30 wt-%, from about 1 wt-%and about 30 wt-%, from about 1 wt-%and about 30 wt-%, from about 1 wt-%and about 25 wt-%, from about 1 wt-%and about 20 wt-%, or from about 1 wt-%and about 15 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • the components of the detergent compositions can further be combined with a non-phosphonate builder.
  • various components may include trace amounts of phosphorous, carboxylates such as citrate, tartrate or gluconate are also suitable.
  • Useful aminocarboxylic acid materials containing little or no NTA include, but are not limited to: N- hydroxyethylaminodiacetic acid, ethylenediaminetetraacetic acid (EDTA) , hydroxyethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA) , diethylenetriaminepentaacetic acid (DTPA) , hydroxyethylethylenediaminetriacetic acid and methylglycinediacetic acid (MGDA) , glutamic acid-diacetic acid (GLDA) , iminodisuccinic acid (IDA) , hydroxyiminodisuccinic acid, ethylenediamined
  • the components of the detergent compositions can further be combined with an additional phosphonate builder, including conventional organic phosphonate scale inhibitors, such as 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP) or 2-Phosphonobutane-1, 2, 4-tricarboxylic acid (PBTC) .
  • organic phosphonate scale inhibitors such as 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP) or 2-Phosphonobutane-1, 2, 4-tricarboxylic acid (PBTC) .
  • exemplary building agents are selected from the group consisting of ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and methylglycinediacetic acid, glutamic acid-diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, ethylenediaminedisuccinic acid, aspartic acid-diacetic acid, and salts thereof.
  • Particularly preferred building agents are methylglycinediacetic acid and salts thereof.
  • the additional builder may be provided in a composition in the amount from about 0 wt-%and about 30 wt-%, from about 0 wt-%and about 25 wt-%, from about 0 wt-%and about 20 wt-%, from about 0.01 wt-%and about 30 wt-%, from about 0.1 wt-%and about 30 wt-%, from about 1 wt-%and about 30 wt-%, from about 1 wt-%and about 30 wt-%, from about 1 wt-%and about 25 wt-%, from about 1 wt-%and about 20 wt-%, or from about 1 wt-%and about 15 wt-%.
  • all ranges recited are inclusive of the numbers defining the range and include each integer within the defined range.
  • Methods of using the detergent compositions are particularly suitable for consumer or institutional ware washing.
  • the methods can include first contacting the detergent composition with water to form a use solution of the detergent composition, which could be provided as a liquid concentrate or a solid composition.
  • a use solution of the detergent composition could be provided as a liquid concentrate or a solid composition.
  • the concentrate or a use solution of the composition provide cleaning efficacy and antiscaling efficacy to various surfaces in need of cleaning.
  • the detergent compositions are particularly suitable for use in alkaline detergent applications where the prevention of hard water scale accumulation on surfaces is desired.
  • the methods are well suited for controlling water hardness buildup on a plurality of surfaces. The methods prevent moderate to heavy accumulation of hardness on treated substrate surfaces which beneficially improving the aesthetic appearance of the surface.
  • surfaces in need of hard water scale accumulation prevention include for example, plastics, metal and/or glass surfaces.
  • the detergent compositions are particularly suitable for treating ware surfaces, such as utensils, instruments, and the like, as well as various appliance surfaces such as kitchen or food processing surfaces. Each of these ware and appliance surfaces can be made of various materials.
  • the methods provide effective cleaning (i.e. detergency) and descaling.
  • the use of the detergent containing the scale-inhibiting organic phosphonate reduces the need for supplemental descaling steps as the compositions provide effective antiscaling.
  • the methods of use reduce the need for acid rinse steps and/or deliming steps (i.e. separate cleaning cycle using strong acids to clean a machine) to remove the films or residues on treated surfaces that accumulate over time.
  • the methods of using the detergent compositions significantly reduce the need to use a descaling step in the dish machine.
  • use of the multipurpose liquid rinse aid compositions provide rinsing efficacy that further prevents the need for machine descaling for at least about 1,000 hours of machine operation, at least about 1,100 hours of machine operation, at least about 1,200 hours of machine operation, at least about 1,300 hours of machine operation, or at least about 1,400 hours of machine operation.
  • the methods of using the detergent compositions significantly reduce the need to use a descaling step in the rinsing cylinder.
  • use of the detergent compositions provide antiscaling efficacy that further prevents the need for descaling the rinsing cylinder for at least about 4 months, at least about 5 months, or at least about 6 months.
  • the organic phosphonates that are alkylene oxide phosphonates add hydrophilicity with the ethylene oxide groups and have high solubility and calcium tolerance, providing benefits in hard water conditions where scaling is deleterious to various surfaces and appliances.
  • a synergistic combination of antiscaling is achieved by combining the organic phosphonate with the polycarboxylate polymers that provide further physical separation or dispersion effects.
  • Exemplary disclosure of warewashing applications is set forth in U.S. Patent Nos. 8,758,520, 9,139,800, and 10,905,305.
  • the method may be carried out in any consumer or institutional dish machine, including for example those described in U.S. Patent No. 8,092,613, which is incorporated herein by reference in its entirety, including all figures and drawings.
  • dish machines include door machines or hood machines, conveyor machines, undercounter machines, glasswashers, flight machines, pot and pan machines, utensil washers, and consumer dish machines.
  • the dish machines may be either single tank or multi-tank machines.
  • a door dish machine also called a hood dish machine, refers to a commercial dish machine wherein the soiled dishes are placed on a rack and the rack is then moved into the dish machine.
  • Door dish machines clean one or two racks at a time. In such machines, the rack is stationary and the wash and rinse arms move.
  • a door machine includes two sets arms, a set of wash arms and a rinse arm, or a set of rinse arms.
  • Door machines may be a high temperature or low temperature machine. In a high temperature machine the dishes are sanitized by hot water. In a low temperature machine the dishes are sanitized by the chemical sanitizer.
  • the door machine may either be a recirculation machine or a dump and fill machine.
  • the detergent solution In a recirculation machine, the detergent solution is reused, or "recirculated" between wash cycles. The concentration of the detergent solution is adjusted between wash cycles so that an adequate concentration is maintained. In a dump and fill machine, the wash solution is not reused between wash cycles. New detergent solution is added before the next wash cycle.
  • the detergent compositions are suitable for cleaning various additional surfaces to provide cleaning and descaling.
  • the ability to treat other surfaces, such as appliances and surfaces, that in contact with hard water and therefore prone to scaling provides a benefit to the detergent compositions.
  • the composition is contacted with an aqueous source, preferably water, or may be mixed with an aqueous source, preferably water, prior to or at the point of use. This step provides a use solution from the detergent compositions.
  • the composition can be housed within a dispenser to provide the use dilution into a warewashing machine (or other point of use) .
  • a dispenser may be employed to spray water (e.g. in a spray pattern from a nozzle) to form a use solution.
  • water may be sprayed toward an apparatus or other holding reservoir with the solid composition, wherein the water reacts to form the diluted use solution.
  • the use solution may be dispensed into a wash solution of a ware wash machine.
  • compositions or use solutions thereof can contact the surface or article by numerous methods for applying a composition, such as spraying the composition, immersing the object in the composition, or a combination thereof.
  • a concentrate or use concentration of a composition can be applied to or brought into contact with an article by any conventional method or apparatus for applying a cleaning composition to an object.
  • the object can be wiped with, sprayed with, and/or immersed in the composition, or a use solution made from the composition.
  • the composition can be sprayed, or wiped onto a surface; the composition can be caused to flow over the surface, or the surface can be dipped into the composition.
  • Contacting can be manual or by machine. Preferred embodiments contact a use solution of the solid composition in a warewash machine.
  • a use solution of the detergent compositions has a pH from about 11-13, from about 11.5-13, or from about 11-12, or from about 11.5-12. In some embodiments the use solution has a pH of at least about 11, or at least about 11.5.
  • the methods of using the detergent composition beneficially reduce the formation, precipitation and/or deposition of scaling, including hard water scale, such as calcium carbonate, on hard surfaces contacted by the detergent compositions.
  • the detergent compositions are employed for the prevention of formation, precipitation and/or deposition of hard water scale on hard surfaces and articles such as glasses, plates, silverware, etc.
  • the detergent compositions beneficially provide such prevention of formation, precipitation and/or deposition of hard water scale despite the high alkalinity of the detergent composition use solutions in the presence of hard water.
  • the detergent compositions are effective at preventing hard water scale accumulation and/or preventing the redeposition of soils in warewashing applications using a variety of water sources, including hard water.
  • the detergent compositions are suitable for use at temperature ranges typically used in industrial warewashing applications, including for example from about 150°F to about 165°F during washing steps and from about 170°F to about 185°F during rinsing steps.
  • the use solution of the detergent compositions applied to surfaces in need of treatment can include at least about 5 ppm to about 1, 500 ppm, about 5 ppm to about 1,000 ppm, about 10 ppm to about 1,000 ppm, or about 20 ppm to about 1,000 ppm of antiscaling components, including the scale-inhibiting organic phosphonate and the additional scale inhibitor.
  • Exemplary articles for treatment with the compositions disclosed herein are in the warewashing industry, including ware, such as metal ware, plastics, dishware, cups, glasses, flatware, and cookware.
  • ware such as metal ware, plastics, dishware, cups, glasses, flatware, and cookware.
  • the terms "dish” and "ware” are used in the broadest sense to refer to various types of articles used in the preparation, serving, consumption, and disposal of food stuffs including pots, pans, trays, pitchers, bowls, plates, saucers, cups, glasses, forks, knives, spoons, spatulas, and other glass, metal, ceramic, plastic composite articles commonly available in the institutional or household kitchen or dining room.
  • these types of articles can be referred to as food or beverage contacting articles because they have surfaces which are provided for contacting food and/or beverage.
  • Embodiments of the present disclosure are further defined in the following non-limiting Examples. It should be understood that these Examples, while indicating certain embodiments of the disclosure, are given by way of illustration only. From the above discussion and these Examples, one skilled in the art can ascertain the essential characteristics of this disclosure, and without departing from the spirit and scope thereof, can make various changes and modifications of the embodiments of the disclosure to adapt it to various usages and conditions. Thus, various modifications of the embodiments of the disclosure, in addition to those shown and described herein, will be apparent to those skilled in the art from the foregoing description. Such modifications are also intended to fall within the scope of the appended claims.
  • test solution is stored for 48 hours at 60°C.
  • soluble calcium is measured using the calcium titration and percent inhibition is calculated from the titration volumes as a measure of the effectiveness of an inhibitor.
  • Alkalinity Addition Add 4 mL of the Alkalinity Stock solution to the alkalinity flask after removing it from the constant temperature source.
  • Solution Mixing Add the alkalinity and calcium solutions to a 500 mL Erlenmeyer flask by simultaneously pouring both solutions from a funnel. Record the pH and place the capped or stoppered flask back in the constant 60°C temperature source for 5 hours.
  • Titration Filter at least 10 g of the test solution through a 0.2 ⁇ m membrane filter. Dilute 10 g of the filtered sample to 50 mL total volume with distilled deionized water. Titrate the sample using Calgon Field Test No. 35-182-G for Determination of Calcium or Calgon Field Test No. 35-183-H for Total Hardness Determination. Prepare a calcium reference by diluting 10 mL of the Calcium Stock Solution to 500 mL with distilled deionized water. Analyze for calcium as described in prior steps.
  • V E titrant volume (mL) required for treated test sample
  • V o titrant volume (mL) required for untreated (blank) test sample
  • V T titrant volume (mL) required for calcium reference sample
  • the %inhibition of calcium carbonate scale was assessed for single components as shown in Table 2, and for combinations of the scale-inhibiting organic phosphonate (PAPEMP) with polycarboxylic acid (PAA /PMA) .
  • PAPEMP scale-inhibiting organic phosphonate
  • PAA /PMA polycarboxylic acid
  • results are shown in FIG. 1 and Tables 2-3.
  • the results show that 20 ppm PAPEMP + 20 ppm PAA/PMA provides at least substantially similar antiscaling efficacy as 40 ppm PAPEMP alone.
  • 20 ppm PAPEMP out performs 40 ppm PAA.
  • the PMA, PAPEMP and PAA all reach maximum efficacy along at about 20 ppm, however the combination of the components can be enhanced with the about 1: 1 (or 1: 1: 1) combining of components.
  • Antiscaling efficacy of detergent compositions were evaluated using glasses in a commercial dish machine.
  • the efficiency of scale removal was evaluated according to %inhibition comparing scale inhibitor packages comparing a single scale inhibitor (phosphonate /chelant /polycarboxylate) compared to combinations thereof.
  • the dish machine was prepared as follows: Turn on the dish machine, fill water, after the water temperature as desired, add delimer (Strip Away or Lime A Way 0.5-1L, wash 3 cycles) . Then turn off the dish machine, drain all the water in the washing tank, and check whether the scale is completely removed. Rinse the dish machine with tap water (rinse out residual acid and foam) . Prepare compositions (detergent and rinse aid) to be used in experiment.
  • the detergents evaluated are shown in Table 4 compared to a basement or benchmark formulation that provides PBTC and PAA/PMA (without any PAPEMP) .
  • FIG. 2A-2C show results in Table 5 showing scale rate, which is the Weight gain /Exposure area of coupon (i.e. scale accumulation) .
  • FIG. 2A-2C shows glasses after 100 cycle with a baseline formulation
  • FIG. 2B shows glasses after 100 cycle with Formula 1 with a significant decrease in scale accumulation compared to benchmark
  • FIG. 2C shows glasses after 100 cycle with Formula 2 with a significant decrease in scale accumulation compared to benchmark.

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Abstract

L'invention concerne des compositions détergentes et des procédés d'utilisation des compositions pour fournir un nettoyage efficace et une performance anti-tartre améliorée par comparaison avec des compositions détergentes classiques. Les compositions contiennent des phosphonates organiques inhibiteurs de tartre, un inhibiteur de tartre supplémentaire comprenant au moins un polycarboxylate, un acide polycarboxylique, ou un sel de celui-ci, une source d'alcalinité, et des ingrédients fonctionnels supplémentaires facultatifs.
PCT/CN2022/111671 2022-08-11 2022-08-11 Compositions détergentes à efficacité anti-tartre améliorée WO2024031507A1 (fr)

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CN202310977688.8A CN117586836A (zh) 2022-08-11 2023-08-04 具有增强的抗结垢功效的洗涤剂组合物

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US8092613B2 (en) 2002-05-31 2012-01-10 Ecolab Usa Inc. Methods and compositions for the removal of starch
US8758520B2 (en) 2011-05-20 2014-06-24 Ecolab Usa Inc. Acid formulations for use in a system for warewashing
US8871699B2 (en) 2012-09-13 2014-10-28 Ecolab Usa Inc. Detergent composition comprising phosphinosuccinic acid adducts and methods of use
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US20180066213A1 (en) * 2016-09-07 2018-03-08 Ecolab Usa Inc. Detergent compositions containing a stabilized enzyme by phosphonates
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CN110819483A (zh) * 2019-11-15 2020-02-21 四川百科乐化学科技有限公司 一种洗碗机用餐具清洁消毒液及其制备方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336878B1 (fr) * 1988-02-10 1995-05-10 Colgate-Palmolive Company Agent de nettoyage acide pour surfaces dures
US8092613B2 (en) 2002-05-31 2012-01-10 Ecolab Usa Inc. Methods and compositions for the removal of starch
US8063010B2 (en) * 2004-08-02 2011-11-22 Ecolab Usa Inc. Solid detergent composition and methods for manufacturing and using
US8758520B2 (en) 2011-05-20 2014-06-24 Ecolab Usa Inc. Acid formulations for use in a system for warewashing
US10905305B2 (en) 2011-05-20 2021-02-02 Ecolab Usa Inc. Automated cleaning method and apparatus
US9139800B2 (en) 2011-12-13 2015-09-22 Ecolab Usa Inc. Concentrated warewashing compositions and methods
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US20180305643A1 (en) * 2015-10-16 2018-10-25 Hans Georg Hagleitner Liquid cleaning concentrate
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