WO2020165069A1 - Composition non chlorée de nettoyage d'installations ouvertes - Google Patents

Composition non chlorée de nettoyage d'installations ouvertes Download PDF

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Publication number
WO2020165069A1
WO2020165069A1 PCT/EP2020/053257 EP2020053257W WO2020165069A1 WO 2020165069 A1 WO2020165069 A1 WO 2020165069A1 EP 2020053257 W EP2020053257 W EP 2020053257W WO 2020165069 A1 WO2020165069 A1 WO 2020165069A1
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Prior art keywords
range
composition according
cleaning composition
general formula
chlorinated aqueous
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English (en)
Inventor
Ashish Taneja
Hannah FERREE
Nancy Almasarweh
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BASF SE
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BASF SE
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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
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3723—Polyamines or polyalkyleneimines
    • 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
    • C11D1/83—Mixtures of non-ionic with anionic 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
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/16—Sulfonic acids or sulfuric acid esters; Salts thereof derived from divalent or polyvalent alcohols
    • 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
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • the presently claimed invention relates to a non-chlorinated aqueous cleaning composi tion having a pH in the range of 10 to 14, comprising at least one alkyl ether sulfate of general formula (I), at least one polyethyleneimine of general formula (II), at least one alkyl polyglycoside of general formula (III) and at least one alkyl iminodipropionate of gen eral formula (IV).
  • the presently claimed invention further relates to a method for the re moval of protein and fat-based soil from an article having a soiled surface.
  • the presently claimed invention also relates to a use of the non-chlorinated aqueous cleaning composi tion in open plant cleaning.
  • the food and beverage market require a high level of consistency in product quality.
  • the manufacturing environment presents significant challenges to food safety as it entails a variety of different processes and equipment which generate a range of soils unique to each application. After the production, the manufacturing equipment and the food contact surfaces all need to be cleaned and sanitized prior to restarting pro duction to ensure an acceptable level of hygiene and cleanliness thereby assuring the final product quality and food safety. Fat and proteins are the two main soils.
  • Proteins are by far the most difficult to remove. In fact, casein (a major milk protein) is also used because of its adhesive properties in many glues and paints. Food pro teins range from simple proteins, which are easier to remove, to more complex pro teins, which are very difficult to remove. Heat-denatured proteins can be extremely difficult to remove as they create a protein film which makes the proteins especially difficult for cleaners to reach.
  • Aqueous cleaning compositions that are formulated for removing fatty and proteina ceous soils from a variety of surfaces have been developed and have been used for many years. Soil removal cannot be considered a spontaneous process because soil re moval kinetics require a finite period. The longer the cleaning solution is in contact with the deposited soil, the more soil is removed to a practical limit. Final traces of soil become increasingly difficult to remove. In the last phase of the soil removal process, cleaning involves overcoming the very strong adhesive force between the soil and the substrate surface, rather than the weaker cohesive soil-soil forces.
  • a large variety of different types of formulations have been developed to remove fat and/or protein containing soils from a variety of surfaces.
  • EP 2766464 A1 provides a cleaning com position for the removal of proteinaceous and fatty soils in an open plant, comprising a sou rce of ch lorine and an alkaline compound. Ch lorine degrades protein by oxidative cleavage and hyd rolysis of the peptide bond, which breaks apart large protein molecu les into smaller peptide chains.
  • chlorinated cleaning composition in the food process industry is not without problems.
  • the main disadvantage of cleaning com position comprising a source of chlorine is that ch lorine leads to corrosion of the metal su rface of the article. Such com positions have an u npleasant odour and cause skin irritation.
  • the problems associated with the use and applications of chlorine release agents in the food process industry have been known and tolerated for decades. There is a growing public concern over the health and environ mental impacts of ch lorine and organoch lorines.
  • a cleaning com position which does not contain ch lorine, has a good foam stability, has no or insig nificant corrosion effects on metals and can be used for open pla nt cleaning, prefer ably at low tem peratu res such as 15 °C to 20 °C.
  • Tem peratu re herein refers to the temperatu re at which cleaning with the cleaning composition is affected.
  • Low temperatu re in the presently claimed invention refers to a temperatu re range of 15 °C to 20 °C and high tem perature refers to a temperatu re range of 35 °C to 60 °C.
  • Temperatu re range of 21 °C to 34 °C which lies in between the low tem perature and high tem peratu re range can be referred to as maxim m temperatu re.
  • the cleaning com positions com prising a com bination of an al kyl ether su lfate, a polyeth- yleneimine, an al kyl polyglycoside and an alkyl iminodipropionate demonstrates removal of protein and fat-based soil from the su rface of an article when the com ponents are com bined.
  • the presently claimed invention relates to a non-chlorinated aqueous cleaning composition having a pH in the range of 10 to 14 com prising (a) at least one alkyl ether sulfate of general formula (I)
  • R j denotes linear or branched, unsubstituted C 6 - C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium
  • n is an integer in the range of from 10 to 1000;
  • G 1 is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 - C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal.
  • Non-chlorinated herein refers to the cleaning composition, wherein the amount of free chlorine is less than 1 ppm.
  • Open plant cleaning refers to‘on-site cleaning operation’ and is typically used to clean the exterior surfaces of the processing equipment of any metal type, any part of the pro cessing equipment that is not enclosed, and the walls and floors of the processing plants. It encompasses all parts of the processing plant except the insides of the equipment and pipes.
  • ‘Stable foam’ herein indicates that the foam retains a foam height of at least 50 mm for a period of at least 10 minutes.
  • a stable foam has a lower rate of water drainage.
  • the presently claimed invention relates to a method for the removal of protein and fat-based soil from an article having a soiled surface, comprising the steps of (i) contacting the said article with the non-chlorinated aqueous cleaning composition as described herein above, at a temperature in the range of 20 °C to 60 °C; and (ii) rinsing the article with water.
  • the presently claimed invention relates to a use of the non-chlorinated composition, as described herein above, in open plant cleaning.
  • a group is defined to comprise at least a certain number of embodiments, this is meant to also encompass a group which preferably consists of these embodiments only.
  • the terms “first”, “second”, “third” or “(a)”, “(b)”, “(c)”, “(d)” etc. and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein are capable of operation in other sequences than described or il lustrated herein.
  • first”, “second”, “third” or“(A)”,“(B)” and“(C)” or “(a)”, “(b)”, “(c)”, “(d)”, “i”, “ii” etc. relate to steps of a method or use or assay there is no time or time interval coherence between the steps, that is, the steps may be carried out simultaneously or there may be time intervals of seconds, minutes, hours, days, weeks, months or even years between such steps, unless otherwise indicated in the application as set forth herein above or below.
  • the presently claimed invention relates to a non-chlorinated aqueous clean ing composition having a pH in the range of 10 to 14 comprising
  • R j denotes linear or branched, unsubstituted C 6 - C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium
  • m is an integer in the range of from 10 to 1000;
  • Gi is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 - C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal.
  • the at least one alkyl ether sulfate of the presently claimed invention is the compound of the general formula (I)
  • Ri denotes linear or branched, unsubstituted C 6 - C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium.
  • C 6 -C 22 -a I kyl covers acyclic saturated hydrocarbon residues, which may be linear or branched and unsubstituted hav ing 6 to 22 carbon atoms.
  • branched denotes a chain of atoms with one or more side chains at tached to it. Branching occurs by the replacement of a substituent, e.g., a hydrogen atom, with a covalently bonded aliphatic moiety.
  • linear and branched C 6 -C 22 alkyl include, but are not limited to, /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-dodecyl, /7-tridecyl, n- tetradecyl, /7-pentadecyl, /7-hexadecyl, /7-heptadecyl, /7-octadecyl, /7-nonadecyl, /7-eicosyl, /7-heneicosyl, /7-docosyl, 2-ethyl hexyl , 2-propyl heptyl, 2-butyl-l-octyl, 2-pentyl-l-nonyl, isohexyl, isoheptyl, isooctyl, is
  • R j is selected from /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-un- decyl, /7-dodecyl, /7-tridecyl, /7-tetradecyl, /7-pentadecyl and /7-hexadecyl.
  • R j is selected from /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-do- decyl, /7-tridecyl, /7-tetradecyl, /7-pentadecyl and /7-hexadecyl.
  • R j is selected from /7-decyl, /7-undecyl, /7-dodecyl, /7-tridecyl and /7-tetradecyl.
  • n is an integer in the range from 1 to 15, more preferably from 1 to 10, and most preferably from 1 to 5.
  • the cation M is selected from sodium, potassium and ammonium cat ion.
  • the at least one alkyl ether sulfate of general formula (I) is produced by the ethoxylation of a fatty alcohol followed by neutralization with alkali hydroxide.
  • the at least one alkyl ether sulfate also contains reaction by-products such as free salts (for example sodium chloride is the free salt by product, when neutralization agent is sodium hydroxide), free fatty alcohols, salts of fatty alcohols and non-ethoxylated alkyl sulfates. Therefore, the solid content of the alkyl ether sulfate will be different from the active content.
  • Active content denotes‘the amount of alkyl ether sulfate’ present in the composition whereas the solid content denotes‘a total of alkyl ether sulfate, fatty alcohol, salt of fatty alcohol, non-ethoxylated alkyl sulfate and the free salt’ in the composition.
  • Free herein denotes that the salt is not bound to the fatty alcohol/ alkyl ether sulfate by any kind of chemical bonding.
  • the at least one alkyl ether sulfate of general formula (I) is present in an amount from 3.0 % to 10.0 %, based on the total weight of the composition.
  • the at least one alkyl ether sulfate has a weight average molecular weight (Mw) in the range from 200 to 2000 g/mol, more preferably from 200 to 1500 g/mol and most preferably from 200 to 1200 g/mol.
  • Mw weight average molecular weight
  • Weight average molecular weight "Mw” is determined according to DIN 55672-1 and refers a polystyrene calibration standard.
  • the at least one polyethyleneimine of the presently claimed invention is the compound of the general formula (I I)
  • n is an integer in the range of from 10 to 1000.
  • the at least one polyethyleneimine has a weight average molecular weight (Mw) in the range from 400 to 15,000 g/mol, more preferably in the range from 500 to 10,000 g/mol and most preferably in the range from 700 to 5000 g/mol.
  • Mw weight average molecular weight
  • m is from 10 to 500, more preferably m is from 15 to 250, still more preferably m is from 15 to 100 and most preferably m is from 15 to 70.
  • the ratio of primary amine groups to secondary amine groups and tertiary amine groups is preferably 2:2:1.
  • the at least one polyethyleneimine is prepared according to the conventional methods known in the art. For example, aziridine is cationically polymerized to form polyethylene- imines in the presence of an acidic catalyst.
  • the at least one polyethyleneimine is present in an amount from 0.1 % to 4.0 %, based on the total weight of the composition.
  • the at least one alkyl polyglycoside of the presently claimed invention is the compound of the general formula (II I).
  • Gi is selected from xylose, arabinose, glucose, and mixtures thereof
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • G 1 is selected from monosaccharides with 5 or 6 carbon atoms, referred to as pentoses and hexoses, respectively.
  • pentoses include, but are not limited to, ribulose, xylulose, ribose, arabinose, xylose and lyxose.
  • hexoses include, but are not limited to galactose, man nose, rhamnose and glucose.
  • Monosaccharides may be synthetic or derived or isolated from natural products.
  • the monosaccharide is obtained from a fer- mentive process of a biomass source.
  • the biomass source is selected from pine wood, beech wood, wheat straw, corn straw, switchgrass, flax, barley husk, oat husk, bagasse, miscanthus and mixtures thereof.
  • G 1 is selected from glucose, xylose, arabinose, rhamnose and mixtures thereof.
  • linear and branched C 4 -C 14 alkyl include, but are not limited to, /7-butyl, /7-pentyl, /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-dodecyl, n- tridecyl, /7-tetradecyl, 2-ethyl hexyl , 2-propyl heptyl, 2-butyl-l-octyl, 2-pentyl-l-nonyl, iso butyl, isopentyl, isohexyl, isoheptyl, isooctyl, isodecyl, isoundecyl, isododecyl, isotridecyl and isotetradecyl.
  • R 2 is selected from /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-un- decyl, /7-dodecyl, /7-tridecyl and /7-tetradecyl.
  • R 2 is selected from /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-do- decyl, /7-tridecyl and /7-tetradecyl.
  • R 2 is selected from /7-octyl, /7-nonyl, /7-decyl, /7-undecyl and /7-dodecyl.
  • x which is also known as degree of polymerization (DP) is in the range of from 1 to 5, preferably in the range of 1 to 2.5, and more preferably in the range of from 1.1 to 1.8. In the context of the presently claimed invention, x refers to average values, and is not necessarily a whole number.
  • the degree of polymerization, x is determined by high temperature gas chromatography (HTGC), in accordance with K. Hill et. AL, Alkyl Polyglucosides, VCH Weinheim, page 28 ff.
  • the amount of the at least one alkyl polyglycoside of general formula (I II) is in the range of from 3.0 % to 10.0 % by weight, based on the total weight of the composition.
  • the at least one alkyl iminodipropionate of the presently claimed invention is the com pound of the general formula (IV)
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 - C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal.
  • linear and branched C 6 -C 16 alkyl include, but are not limited to, /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-dodecyl, /7-tridecyl, n- tetradecyl, /7-pentadecyl, /7-hexadecyl, 2-ethyl hexyl , 2-propyl heptyl, 2-butyl-l-octyl, 2 pentyl-l-nonyl, isooctyl, isodecyl, isoundecyl, isododecyl, isotridecyl, isotetradecyl, iso- pentadecyl and isohexadecyl.
  • R 4 and R 5 are different and selected from H and alkali metal.
  • the alkali metal is selected from sodium and potassium.
  • alkyliminodipropionate compounds include, but are not limited to, lauryl beta- iminodipropionate, monosodium lauryl beta-iminodipropionate, monopotassium lauryl beta-iminodipropionate, disodium lauryl beta-imino dipropionate and dipotassium lauryl beta-iminodipropionate.
  • the amount of the at least one alkyliminodipropionate of general for mula (IV) is in the range of from 5.0 % to 20.0 % by weight, based on the total weight of the composition.
  • the non-chlorinated aqueous clean ing composition has a p H value from 10 to 14.
  • the pH of the non-chlorinated aqueous cleaning composition is adjusted by adding at least one alkaline agent.
  • the at least one alkaline agent is selected from alkali metal hydroxides, alkaline earth metal hydroxides, alkylamines, ethanolamine, alkali metal carbonates, alkali metal bicar bonates and alkali metal silicates.
  • the at least one alkaline agent is an alkali metal hydroxide.
  • the alkali metal hydroxide is selected from sodium hydroxide, potas sium hydroxide and mixtures thereof.
  • the alkali metal hydroxide is employed as an aque ous solution such as a 50 % aqueous solution of sodium hydroxide and a 45 % aqueous solution of potassium hydroxide.
  • the amounts set out herein are percentages of the active compound.
  • the at least one alkaline agent is present in an amount in the range of from 5.0 % to 16.0 % by weight, based on the total weight of the composition.
  • the at least one chelating agent is selected from aminopolycarboxylate and polycarboxylic acid.
  • a chelating agent is a molecule capable of coordinating (i.e. binding) the metal ions commonly found in natural water to prevent the metal ions from interfering with the action of the other detersive ingredients of a cleaning composi tion.
  • the aminopolycarboxylate is selected from ethylene diamine tetraacetic acid (EDTA), tetrasodium ethylene diamine tetraacetate (disodium EDTA), diammonium ethylene diamine tetraacetate (diammonium EDTA), trisodium hydroxyethylethylene dia mine triacetate (HEDTA, sodium salt), diethylene triamine pentaacetic acid (DTPA), me thyl glycine diacetic acid (MGDA), methyl glycine diacetic acid trisodium salt, glutamic acid diacetic acid (GLDA), glutamic acid diacetic acid tetrasodium salt and nitrilotriacetic acid (NTA).
  • EDTA ethylene diamine tetraacetic acid
  • disodium EDTA tetrasodium ethylene diamine tetraacetate
  • diammonium ethylene diamine tetraacetate diammonium ethylene
  • the aminocarboxylate is selected from tetrasodium ethylene diamine tetraacetate (disodium EDTA), methyl glycine diacetic acid (MGDA) and methyl glycine diacetic acid trisodium salt
  • the polycarboxylic acid is citric acid.
  • Suitable chelating agents are known and available commercially, e.g. Trilon M, Trilon B, Trilon A, Trilon C, Trilon D, Trilon BAD, Trilon BAQ, Trilon BX from BASF SE, Lud- wigshafen, Germany.
  • the at least one chelating agent is present in an amount in the range of from 2.0 % to 10.0 % by weight, based on the total weight of the composition.
  • Ethoxylated surfactant of general formula (V) is present in an amount in the range of from 2.0 % to 10.0 % by weight, based on the total weight of the composition.
  • the non-chlorinated aqueous cleaning composition of the presently claimed invention fur ther comprises at least one ethoxylated surfactant of general formula (V)
  • R 5 denotes linear or branched, unsubstituted C 6 - C 18 alkyl
  • p is an integer in the range of from 1 to 15.
  • linear and branched C 6 -C 18 alkyl include, but are not limited to, /7-hexyl, /7-heptyl, /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-dodecyl, /7-tridecyl, n- tetradecyl, /7-pentadecyl, /7-hexadecyl, /7-heptadecyl, /7-octadecyl, 2-ethyl hexyl, 2-propyl heptyl, 2-butyl-l-octyl, 2-pentyl-l-nonyl, isohexyl, isoheptyl, isooctyl, isodecyl, isoundecyl, isododecyl, isotridecyl, isote
  • R 5 is selected from /7-octyl, /7-nonyl, /7-decyl, /7-undecyl, /7-dodecyl, n- tridecyl, /7-tetradecyl, /7-pentadecyl, /7-hexadecyl, isooctyl, isodecyl, isoundecyl, isodo decyl, isotridecyl, isotetradecyl, isopentadecyl and isohexadecyl.
  • R 5 is selected from /7-decyl, /7-undecyl, /7-dodecyl, /7-tridecyl, n- tetradecyl, isodecyl, isoundecyl, isododecyl, isotridecyl and isotetradecyl.
  • R 5 is selected from /7-tridecyl and isotridecyl.
  • I n an embodiment, p is an integer in the range from 2 to 14, more preferably in the range from 3 to 12 and most preferably in the range from 3 to 10.
  • the weight average molecular weight of the at least one ethoxylated surfactant of general formula (V) is in the range from 200 g/mol to 2000 g/mol, preferably from 200 g/mol to 1500 g/mol, more preferably from 250 g/mol to 1200 g/mol and most preferably from 300 g/mol to 1000 g/mol.
  • the amount of the at least one ethoxylated surfactant of general for mula (V) is in the range of from 0 to 5.0 % by weight, preferably in the range from 1.0 to 5.0 % by weight, based on the total weight of the composition
  • the presently claimed invention further comprises at least one additive.
  • the at least one additive is selected from solvents, amine oxides, curing agents, dyes, fragrances, antimicrobial agents, thickening agents, anti-redeposition agents and fatty al cohols.
  • the amount of the at least one additive is in the range of 0 to 30.0 % by weight, more preferably in the range of 0.1 to 25.0 %, and most preferably in the range from 0.5 to 25.0 % by weight, in each case related to the overall based on the total weight of the composition.
  • the non-chlorinated aqueous cleaning composition according to the presently claimed invention may contain solvents.
  • the solvents that may be used in the non-chlorinated aqueous cleaning composition can be selected from monovalent or polyvalent alcohols, alkanolamines and glycol ethers.
  • the solvents are selected from ethanol, /7-propanol, iso propanol, ethylene glycol, butanediol, glycerol, diethylene glycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether or propylene glycol propyl ether, dipropylene glycol monomethyl ether, dipropylene glycolethyl ether, diisopro pylene glycol monomethyl ether, diisopropylene glycol monoethyl ether, methoxytriglycol, ethoxytriglycol, butoxytriglycol, l-butoxyethoxy-2-propano
  • the non-chlorinated aqueous cleaning composition of the presently claimed invention may also comprise amine oxides.
  • Amine oxides are tertiary amine oxides.
  • the amine oxides are selected from the coconut or tallow alkyl di-(lower alkyl) amine ox ides, specific examples of which are dodecyldimethylamine oxide, tridecyldimethylamine oxide, tetradecyldimethylamine oxide, pentadecyldimethylamine oxide, hexadecyldime- thylamine oxide, heptadecyldimethylamine oxide, octadecyldimethylaine oxide, dodecyldi- propylamine oxide, tetradecyldipropylamine oxide, hexadecyldipropylamine oxide, tetradecyldibutylamine oxide, octadecyldibutyl
  • the non-chlorinated aqueous cleaning composition of the presently claimed invention may also comprise curing agents.
  • the curing agents are selected from pol yether amines, cycloaliphatic amines and nitriles. Curing agents are known and commer cially available, such as Baxxodur ® EC 280, Baxxodur ® EC 301, Baxxodur ® EC 311, Baxx- odur ® EC 130, Baxxodur ® EC 302, Baxxodur ® EC 303 and Baxxodur ® EC 310.
  • the non -chlorinated aqueous cleaning composition of the presently claimed invention may optionally comprise one or more dyes.
  • the dye is used to colour the non-chlorinated aque ous cleaning composition. This might render the product more attractive to the consumer.
  • Dyes that can be used in the cleaning composition include, but are not limited to, Nylosan ® yellow N-7GL, Sanolin ® brilliant flavine 8GZ, Sanolin ® yellow BG, Vitasyn ® quinoline yellow 70, Vitasyn ® tartrazine X90, Puricolor ® yellow AYE23, Basacid yellow 232, Vibracolor ® yel low AYE17, Simacid ® Eosine Y, Puricolor ® red ARE27, Puricolor ® red ARE14, Vibracolor ® red ARE18, Vibracolor ® red ARE52, Vibracolor ® red SRE3, Basacid ® red 316, Ponceau ® SX, Ira
  • the non-chlorinated aqueous cleaning composition of the presently claimed invention may optionally comprise one or more fragrances.
  • Suitable fragrances are those derived from natural sources or are synthetic aromatic substances. Natural aromatic substances are, for example, extracts from blossom (lilies, lavender, roses, jasmine, neroli, ylang-ylang), from stems and leaves (geranium, patchouli, petitgrain), from fruit (aniseed, coriander, caraway, juniper), from fruit p e el (bergamot, lemons, oranges), from roots (mace, an gelica, celery, cardamom, costus, iris, calamus), from wood (pinewood, sandalwood, guai- acum wood, cedarwood, rose-wood), from herbs and grasses (tarragon, lemon grass, sage, thyme), from needles and twigs (spruce, pine, scots pine, mountain pine), from res ins and balsam
  • Typical synthetic aromatic substances are, for example, products of the ester, ether, aldehyde, ketone, al cohol or hydrocarbon type.
  • Aromatic substance compounds of the ester type are, for ex ample, benzyl acetate, phenoxyethyl isobutyrate, p-tert-butyl cyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl acetate, linalyl benzoate, benzyl for mate, ethylmethylphenyl glycinate, allylcyclohexyl propionate, styrallyl propionate and benzyl salicylate.
  • the ethers include, for example, benzyl ethyl ether; the aldehydes in clude, for example, the linear alkanals having from 8 to 18 hydrocarbon atoms, citral, cit- ronellal, citronellyl oxyacetaldehyde, cyclamen aldehyde, hydroxy citronellal, lilial and bourgeonal; the ketones include, for example, the ionones, isomethylionone and methyl cedryl ketone; the alcohols include, for example, anethol, citronellol, eugenol, isoeugenol, geraniol, linalool, phenyl ethyl alcohol and terpinol; and the hydrocarbons include mainly the terpenes and balsams.
  • Ethereal oils of relatively low volatility which are chiefly used as aroma components, are also suitable for fragrance, e.g. sage oil, camomile oil, clove oil, melissa oil, oil of cinnamon leaves, lime blossom oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil, labolanum oil and lavandin oil.
  • fragrance e.g. sage oil, camomile oil, clove oil, melissa oil, oil of cinnamon leaves, lime blossom oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil, labolanum oil and lavandin oil.
  • the non-chlorinated aqueous cleaning composition of the presently claimed invention may optionally comprise one or more anti-microbial agents.
  • these materials fall in specific classes including phenolics, halogen compounds, quaternary ammonium com pounds, metal derivatives, amines, alkanol amines, nitro derivatives, anilides, organosulfur and sulfur-nitrogen compounds and miscellaneous compounds.
  • the given antimicrobial agent depending on chemical composition and concentration may simply limit further pro liferation of numbers of the microbe or may destroy all or a substantial proportion of the microbial population.
  • the terms“microbes” and“microorganisms” typically refer primarily to bacteria and fungus microorganisms.
  • Common antimicrobial agents that may be used include phenolic antimicrobials such as pentachlorophenol, orthophenylphenol; halogen containing antibacterial agents that may be used include sodium trichloroisocyanurate, sodium dichloroisocyanurate (anhydrous or dihydrate), iodine-poly(vinylpyrolidin-onen) complexes, bromine compounds such as 2-bromo-2-nitropropane-l,3-diol; quaternary an timicrobial agents such as benzalkonium chloride, cetyl pyridiniumchloride; amines and ni tro containing antimicrobial compositions such as hexahydro-l,3,5-tris(2-hydroxyethyl)- s-triazine, dithiocarbamates such as sodium dimethyldithiocarbamate, and a variety of other materials known in the art for their microbial properties.
  • an antimicrobial agent is incorporated into the composition, the composition
  • the non-chlorinated aqueous cleaning compositions of the presently claimed invention may also comprise viscosity modifiers or thickeners for obtaining a desired viscosity of the laundry detergent composition.
  • Suitable viscosity modifiers are polysaccharides, for e.g. xanthan gum, carboxymethylcellulose, organic clays (organically modified or unmodified), polycarboxylates and silicates.
  • additional thickeners include soluble organic or inorganic thickener material.
  • inorganic thickeners include clays, silicates and other well-known inorganic thickeners.
  • organic thickeners include thixotropic and non-thixotropic thickeners.
  • the thickeners have some substantial proportion of water solubility to promote easy remova bility.
  • soluble organic thickeners are, but not limited to, carboxylated vinyl polymers such as polyacrylic acids and sodium salts thereof, ethoxylated cellulose, poly acrylamide thickeners, xanthan thickeners, guar gum, sodium alginate and algin by-prod ucts, hydroxy propyl cellulose, hydroxy ethyl cellulose and other similar aqueous thicken ers that have some substantial proportion of water solubility.
  • Antiredeposition agents are useful in the presently claimed invention to assist in reducing redepositing of the removed soil onto the surface being cleaned.
  • Anti-redeposition agent(s) can provide their effect by becoming adsorbed irreversibly or reversibly to the soil particles or to the article surface, thereby the soil becomes better dispersed in the non- chlorinated aqueous cleaning compositions or the article is occupied with anti-redeposi- tion agent(s) on those places the soil could redeposit.
  • Examples of the anti-redeposition agent(s) that are known to be used in the cleaning compositions include, but are not lim ited to, carboxymethyl cellulose, polyester-PEG co-polymer and polyvinyl pyrrolidone based polymers.
  • the non-chlorinated aqueous cleaning compositions of the presently claimed invention may also comprise at least one fatty alcohol.
  • the at least one fatty alcohol is derived from vegetable oil.
  • Preferred fatty alcohol have a carbon chain length in the range of 10 to 24. Tallows produce a fairly narrow range of alcohols, predominantly C 16- C 18 .
  • Higher alcohols (C -C ) can be obtained from rapeseed oil or mustard seed oil.
  • Midcut alcohols are ob tained from coconut oil (C 12 -C 14 ) or palm kernel oil (C 16- C 18 ).
  • a preferred fatty alcohol is C 12 -C 16 fatty alcohol.
  • the presently claimed invention relates to a non-chlorinated aque- ous cleaning composition having a pH in the range of 10 to 14 comprising
  • R j denotes linear or branched, unsubstituted C 6 - C 22 alkyl
  • n is an integer in the range of from 1 to 20
  • M denotes alkali metal or ammonium
  • n is an integer in the range of from 10 to 1000;
  • G 1 is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 -C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal
  • R 5 denotes linear or branched, unsubstituted C 6 -C 18 alkyl
  • p is an integer in the range of from 1 to 15.
  • the presently claimed invention relates to a non -chlorinated aque ous cleaning composition having a pH in the range of 10 to 14 comprising
  • R j denotes linear or branched, unsubstituted C 6 -C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium
  • n is an integer in the range of from 10 to 1000;
  • Gi is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 -C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 -C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal
  • R 5 denotes linear or branched, unsubstituted C 6 -C 18 alkyl
  • p is an integer in the range of from 1 to 15;
  • the presently claimed invention relates to a non-chlorinated aqueous cleaning composition having a pH in the range of 10 to 14 consisting of
  • R j denotes linear or branched, unsubstituted C 6 -C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium
  • n is an integer in the range of from 10 to 1000;
  • Gi is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 - C 16 alkyl
  • R 4 and R 5 are identical or different and denote H or alkali metal.
  • the presently claimed invention relates to a method for the removal of protein and fat-based soil from an article having a soiled surface, said method comprising the steps of
  • Contacting herein refers to contacting the surface of the article with the non-chlorinated aqueous cleaning composition either by applying it manually, i.e. by hand on the soiled surface or by means of a spraying device, preferably a pressure spraying device.
  • the pres sure spraying device aerates the non-chlorinated aqueous cleaning composition such that the cleaning formulation is ejected from the spray nozzle as foam.
  • the foam provides a greater surface residence time for the cleaning composition, thereby improving cleaning performance.
  • the step (ii) of rinsing the article is carried out by spraying water at high pressure.
  • the pressurized water can be applied by high pressure units and special spraying lances.
  • the pressure of the presurrized water is between 30- 70 bar.
  • the presently claimed invention relates to the method for the removal of protein and fat-based soil from an article having a soiled surface, said method com prising the steps of
  • the presently claimed invention relates to the method for the removal of protein and fat-based soil from an article having a soiled surface, said method com prising the steps of
  • composition as described herein above at a temperature in the range of 20 °C to 60 °C;
  • the presently claimed invention relates to the method for the removal of protein and fat-based soil from an article having a soiled surface, said method com prising the steps of
  • potable water is used for step (ii) of rinsing the article.
  • Potable water is the water which is fit for human consumption.
  • Step (ii), of rinsing the article can be performed once or repeated several times to re move the soil.
  • An optional drying step may be applied, if required.
  • the presently claimed invention relates to the use of the non-chlorin ated composition as described herein above in open plant cleaning.
  • compositions are used in cleaning food soiled surfaces.
  • the composition of the presently claimed invention may be manufactured and/or supplied as‘ready to use’ for mulations or as concentrates for dilution.
  • Said products being enclosed in metal, plastic, composite, laminate, paper, paperboard, or water-soluble protective packaging.
  • Said products being designed for open plant cleaning (OPC) regimens in food process indus tries such as dairy farm; fluid milk and processed milk by-product, red meat, poultry, fish, and respective processed by-products, soft drink, juice, and fermented beverages, egg, dressings, condiments, and other fluid food processing, and, fresh, frozen, canned or ready-to-serve processed foodstuffs.
  • OPC open plant cleaning
  • the cleaning composition is pumped with air to form a foam lather that remains on the vertical surfaces of the equipment, allowing chemical interaction with the soils in ques tion.
  • the non-chlorinated aqueous cleaning composition is applied on the articles having a metallic surface such as stainless steel, aluminum and other surfaces including, but not limited to, glass, rubber and plastic.
  • a metallic surface such as stainless steel, aluminum and other surfaces including, but not limited to, glass, rubber and plastic.
  • the composition of the presently claimed invention do not corrode the metal surface.
  • the cleaning composition of the presently claimed invention is free of chlorine.
  • the cleaning composition of the presently claimed invention has limited corrosion effects on metals.
  • the cleaning composition of the presently claimed invention show a better effect in terms of removal of protein and fat-based soils as the cleaning composition gener ates a good clinging foam which adheres to the vertical surfaces for a time sufficient for effective cleaning.
  • R j denotes linear or branched, unsubstituted C 6 - C 22 alkyl
  • n is an integer in the range of from 1 to 20, and
  • M denotes alkali metal or ammonium
  • n is an integer in the range of from 10 to 1000;
  • G 1 is a monosaccharide
  • R 2 denotes linear or branched, unsubstituted C 4 - C 14 alkyl
  • x is in an integer in the range of from 1 to 10;
  • R 3 denotes linear or branched, substituted or unsubstituted C 6 -
  • R 4 and R 5 are identical or different and denote H or alkali metal.
  • non-chlorinated aqueous cleaning composition according to embodiment 9, wherein the at least one chelating agent is selected from aminopolycarboxylate and polycarboxylic acid.
  • non-chlorinated aqueous cleaning composition wherein the aminopolycarboxylate is selected from ethylene diamine tetraacetic acid, tetrasodium ethylene diamine tetraacetate, diammonium ethylene diamine tetraacetate, trisodium hydroxyethylethylene diamine triacetate, methyl glycine diacetic acid, glutamic acid diacetic acid, glutamic acid diacetic acid tetrasodium salt and nitrilotriacetic acid.
  • the aminopolycarboxylate is selected from ethylene diamine tetraacetic acid, tetrasodium ethylene diamine tetraacetate, diammonium ethylene diamine tetraacetate, trisodium hydroxyethylethylene diamine triacetate, methyl glycine diacetic acid, glutamic acid diacetic acid, glutamic acid diacetic acid tetrasodium salt and nitrilotri
  • non-chlorinated aqueous cleaning composition according to one or more of embodiments 9 to 12, wherein the at least one chelating agent is present in an amount in the range of from 2.0 % to 10.0 % by weight, based on the total weight of the composition.
  • non-chlorinated aqueous cleaning composition according to embodiment 1, further comprising at least one ethoxylated surfactant of general formula (V)
  • R 5 denotes linear or branched, unsubstituted C 6 - C 18 alkyl
  • p is an integer in the range of from 1 to 15.
  • non-chlorinated aqueous cleaning composition according to embodiment 1 further comprising at least one additive.
  • non-chlorinated aqueous cleaning composition according to embodiment 16, wherein the at least one additive is selected from solvents, amine oxides, curing agents, dyes, fragrances, antimicrobial agents, thickening agents, anti-redeposition agents and fatty alcohols.
  • a method for the removal of protein and fat-based soil from an article having a soiled surface comprising the steps of
  • step (ii) rinsing the article with water.
  • the contact time is in the range of 5 minutes to 30 minutes.
  • step (iii) drying the article Use of the non-chlorinated aqueous cleaning composition according to one or more of embodiments 1 to 19 in open plant cleaning.
  • Compound A Compound of general formula (I): Sodium laureth sulfate, 2 EO)
  • Compound B Compound of general formula (II): polyethyleneimine, average molecular weight of 2000 g/mol as determined by Gel permeation chromatography.
  • Compound E Compound of general formula (V): T ridecyl alcohol ethoxylate (9EO), weight average molecular weight 590 g/mol
  • T ri Ion M trisodium salt of methylglycinediacetic acid
  • the degree of polymerization, x was determined by high temperature gas chromatography (HTGC), in accordance with K. Hill et. AL, Alkyl Polyglucosides, VCH Weinheim, page 28 ff.
  • HTGC high temperature gas chromatography
  • Weight average molecular weight "Mw” was determined according to DI N 55672-1 and referred to a polystyrene calibration standard.
  • Non-chlorinated aqueous cleaning compositions of examples 1 to 5 were prepared as per the details provided in Table-1 Table-1: Non-chlorinated aqueous cleaning composition
  • Aluminium-5052 panels of 3” x6” were soiled with a blend of lard and egg and heated for 15 minutes at 50 ° C in an oven.
  • a dilute solution of composition of example-1 was prepared by adding 47 ml of example-1 in 1 L water and this was then added to the holding tank of the spray box. This was then sprayed on the panels at a pressure of 60 psi for 20 seconds. The cling time on the aluminum panel was measured.
  • the aluminum panel was rinsed off with water and allowed to dry overnight. The panel was weighed before and after cleaning to calculate the percent clean gravimetrically. The procedure was conducted at two different temperatures: 23 °C and 40 °C. The same procedure was repeated for cleaning composition of example-2.
  • Table-2 Cleaning results at temperature 23 °C
  • compositions of the present invention provide the cleaning flexibility desired in open plant cleaning at low and high temperatures.
  • Dynamic Foam analyzer 100, KrOss, measures the foamability of liquids and the foam stability based on precise measurements of the foam height. It also measures the liquid content of the foam and analyses the foam structure regarding bubble size and dis tribution. 1000 ppm each of solution of example-1, 2, 3 and 4 was prepared. Sparging at 8000 rpm was done. Foam was generated for 30 seconds and foam stability data over 10 minutes was generated. Table 4: Foam stability data
  • the decay of foam is very slow over 10 minutes period, indicating that the foam generated by the compositions of the presently claimed invention is stable. This indicates that the foam has the capacity to cling to the surface of the article to be cleaned for a longer time, offering a greater time for interaction with the soil for its effective removal.
  • Corrosion test was performed on two grades of aluminium, AI-5052 and AI-6063 and two grades of stainless steel, SS-304 and SS-316,
  • a lower value of corrosion rate indicates low corrosive effect on the metal surface. This indicates that the non-chlorinated aqueous cleaning composition of the presently claimed invention have insignificant corrosive effect on the metal surface of equipment.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition aqueuse non chlorée de nettoyage présentant un pH dans la plage de 10 à 14, comprenant au moins un alkyléthersulfate de formule générale (I), au moins une polyéthylène-imine de formule générale (II), au moins un polyglycoside d'alkyle de formule générale (III) et au moins un iminodipropionate d'alkyle de formule générale (IV). La présente invention concerne en outre un procédé d'élimination de protéines et de souillures à base de graisses d'un article présentant une surface souillée. La présente invention concerne également l'utilisation de la composition non chlorée de nettoyage dans le nettoyage d'installations ouvertes.
PCT/EP2020/053257 2019-02-14 2020-02-10 Composition non chlorée de nettoyage d'installations ouvertes Ceased WO2020165069A1 (fr)

Applications Claiming Priority (4)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130303425A1 (en) * 2012-05-11 2013-11-14 Stefano Scialla Liquid Detergent Composition for Improved Shine
US20140148374A1 (en) * 2012-11-28 2014-05-29 Ecolab Usa Inc. Foam stabilization with polyethyleneimine ethoxylates
EP2766464A1 (fr) 2011-10-12 2014-08-20 Ecolab USA Inc. Compositions nettoyantes modérément alcalines pour élimination de salissures protéiques et graisseuses à basses températures
US9670433B1 (en) * 2015-12-28 2017-06-06 Ecolab Usa Inc. Hard surface cleaning compositions
WO2017182305A1 (fr) * 2016-04-18 2017-10-26 Basf Se Procédé de nettoyage de surfaces dures, et formulations utiles audit procédé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2766464A1 (fr) 2011-10-12 2014-08-20 Ecolab USA Inc. Compositions nettoyantes modérément alcalines pour élimination de salissures protéiques et graisseuses à basses températures
US20130303425A1 (en) * 2012-05-11 2013-11-14 Stefano Scialla Liquid Detergent Composition for Improved Shine
US20140148374A1 (en) * 2012-11-28 2014-05-29 Ecolab Usa Inc. Foam stabilization with polyethyleneimine ethoxylates
US9670433B1 (en) * 2015-12-28 2017-06-06 Ecolab Usa Inc. Hard surface cleaning compositions
WO2017182305A1 (fr) * 2016-04-18 2017-10-26 Basf Se Procédé de nettoyage de surfaces dures, et formulations utiles audit procédé

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