EP3649222B1 - Composition de blanchiment - Google Patents

Composition de blanchiment Download PDF

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Publication number
EP3649222B1
EP3649222B1 EP18734831.3A EP18734831A EP3649222B1 EP 3649222 B1 EP3649222 B1 EP 3649222B1 EP 18734831 A EP18734831 A EP 18734831A EP 3649222 B1 EP3649222 B1 EP 3649222B1
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EP
European Patent Office
Prior art keywords
alkyl
surfactant
cleaning composition
laundry cleaning
composition according
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EP18734831.3A
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German (de)
English (en)
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EP3649222A1 (fr
Inventor
Stephen Norman Batchelor
Catherine Breffa
Jan DIEDERICHS
Kevin James MUTCH
Steffen ROMANSKI
Carsten Schaefer
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Unilever Global IP Ltd
Unilever IP Holdings BV
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Unilever Global IP Ltd
Unilever IP Holdings BV
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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • 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
    • C11D3/0005—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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
    • 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
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments
    • C11D3/42—Brightening agents ; Blueing 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
    • C11D3/50—Perfumes
    • 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
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/06—Ether- or thioether 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
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D1/34—Derivatives of acids of phosphorus
    • C11D1/345—Phosphates or phosphites
    • 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
    • C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols

Definitions

  • the present invention concerns a laundry cleaning composition.
  • AD alkoxylated dispersants
  • the present invention provides a laundry cleaning composition comprising:
  • R 1 is an alkyl-aryl group in the alkoxylated dispersant structure.
  • X is ethoxy in the alkoxylated dispersant structure.
  • n the mole average number of alkoxy groups, is from 6 to 40, more preferably from 9 to 30, most preferably from 10 to 20 in the alkoxylated dispersant structure.
  • R 1 is selected from: phenylethyl and benzyl. More preferably R 1 is benzyl.
  • alkoxylated dispersant is selected from:
  • a preferred laundry cleaning composition comprise surfactant, other than the alkoxylated dispersant, at a level of from 4 to 40 wt.%, more preferably from 4 to 35 wt.%, most preferably from 6 to 30 wt.%.
  • the surfactant other than the alkoxylated dispersant, comprises anionic and/or non-ionic surfactants.
  • the weight fraction of non-ionic surfactant to anionic surfactant is from 0 to 0.3. This means that non-ionic surfactant can be present (or it may be absent if the weight fraction is 0), but if non-ionic surfactant is present, then the weight fraction of the non-ionic surfactant is preferably at most 30% of the total weight of anionic surfactant + non-ionic surfactant, wherein the alkoxylated dispersant is not considered a surfactant as defined herein.
  • the anionic surfactant is selected from: linear alkyl benzene sulphonates; alkyl sulphates; alkyl ether sulphates; and mixtures thereof.
  • the non-ionic surfactant is an alcohol ethoxylate, more preferably an C 10 -C 18 alcohol ethoxylate having an average of 3-10 moles of ethylene oxide, most preferably an C 12 -C 15 alcohol ethoxylate having an average of 5-9 moles of ethylene oxide.
  • the laundry cleaning composition is preferably an aqueous laundry liquid detergent composition.
  • the pH of the aqueous liquid detergent composition is from 6 to 8.5, more preferably from 6.5 to 7.5, even more preferably from 6.8 to 7.2, most preferably 7.0.
  • the active ingredient is an enzyme and comprises one or more of the following: proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof. More preferably the enzyme is a protease, most preferably a subtilase type serine protease.
  • the invention provides a domestic method of treating a textile, the method comprising the steps of:
  • the surfactant used is preferably as preferred for the composition aspects of the present invention.
  • domestic methods are preferably conducted in a domestic washing machine or by hand washing.
  • the temperature of the wash is preferably from 285 to 335 degrees Kelvin.
  • the textile is preferably an item of used clothing, bedding or table cloth.
  • Preferred items of clothing are worn cotton containing shirts, trousers, underwear and jumpers.
  • the alkoxylated dispersant has the following structure:- wherein:
  • R 1 is an alkyl-aryl group, most preferably benzyl.
  • T CH 3 .
  • the alkoxylated dispersant is preferably formed as a reaction product of trimellitic anhydride or pyromellitic dianhydride with a polyether of the form T-(X) n -OH and alcohol of the form R 1 -OH, where R 1 is selected from uncharged C12 to C20 alkyl groups; uncharged aryl groups; and, uncharged alkyl-aryl groups wherein the alkyl group of the alkyl-aryl is a saturated linear or branched C1 to C3.
  • R 1 -OH is selected from 2-phenylethanol and benzyl alcohol.
  • R 1 may be substituted by further uncharged organic groups, for example when R 1 contains a benzene ring the benzene ring may be substituted by methyl, ethyl, methoxy, ethoxy, CI, NO 2 .
  • R 1 -OH is an aromatic alcohol, phenol, for example may be used in the reaction.
  • the trimellitic anhydride or pyromellitic anhydride is reacted with the polyether then the R 1 -OH alcohol.
  • the trimellitic anhydride or pyromellitic anhydride is reacted with 1 mole equivalent of the polyether then the R 1 -OH alcohol.
  • X is selected from OCH 2 CH 2 (ethoxy) and mixtures of ethoxy and propoxy units, wherein if a mixture, then the number of ethoxy groups is greater than the number of propoxy groups. If X comprises propoxy groups then preferably the mole ratio of ethoxy/propoxy is greater than 2, more preferably greater than 5.
  • X is a mixture of ethoxy and propoxy groups, then they may be distributed blockwise alternatively, periodically and/or statistically.
  • X is most preferably OCH 2 CH 2 (ethoxy).
  • n is the mole average number of alkoxyl groups.
  • the value of n may be measured using NMR.
  • the value of n is from 6 to 70, preferably 6 to 40, more preferably 9 to 30. Indeed the value of n may be individually 9, 10, 11, 12, 13, 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29, or 30. Most preferably the value of n may be from 10 to 20.
  • the alkoxylated dispersant may alternatively be formed by reaction of the anhydride with R 1 -OH then alkoxylation with an epoxide, however, this route is not preferred.
  • Trimellitic anhydride chloride may also be used.
  • alkoxylated dispersant is not considered a surfactant and does not contribute numerically to the surfactant as defined herein.
  • Preferred examples of structures of the AD of the invention are and isomers thereof.
  • AD structures are:
  • the alkoxylated dispersant prevents the deposition of soil present in the wash liquor onto the fabric.
  • the alkoxylated dispersant can also increase stain removal.
  • the laundry cleaning composition comprises an active ingredient selected from one or more of the following: from 0.001 to 3 wt.% perfume; from 0.0001 to 0.5 wt.% of fluorescent agent; and, from 0.0001 wt.% to 0.1 wt.% of an enzyme.
  • Contemplated enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
  • the enzyme is selected from: proteases, alpha-amylases; cellulases and lipases, or mixtures thereof. More preferably the enzyme is a protease, more preferably a subtilase type serine protease.
  • alkoxylated dispersant is not considered a surfactant and does not contribute numerically to the surfactant as defined herein.
  • the laundry composition may comprise anionic and non-ionic surfactant (which includes a mixture of the same).
  • the surfactant is present at a level of from 0 to 50 wt.%. This means that surfactant need not be present, but it is preferred that it is present.
  • Preferred laundry cleaning compositions comprise surfactant at a level of from 4 to 40 wt.%, more preferably from 4 to 35 wt.%, most preferably from 6 to 30 wt.%.
  • the surfactant comprises anionic and/or non-ionic surfactants.
  • Suitable nonionic and anionic surfactants may be chosen from the surfactants described " Surface Active Agents” Vol. 1, by Schwartz & Perry, Interscience 1949 , Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of " McCutcheon's Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in " Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 or in Anionic Surfactants: Organic Chemistry edited by Helmut W. Stache (Marcel Dekker 1996 ).
  • Suitable anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher alkyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C 8 to C 18 alcohols, produced for example from tallow or coconut oil, Alkyl ether carboxylic acids; sodium and potassium alkyl C 9 to C 20 benzene sulphonates, particularly sodium linear secondary alkyl C 10 to C 15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the anionic surfactant is preferably selected from: linear alkyl benzene sulphonate; alkyl sulphates; alkyl ether sulphates; alkyl ether carboxylates; soaps; alkyl (preferably methyl) ester sulphonates, and mixtures thereof.
  • More preferred anionic surfactants are selected from: linear alkyl benzene sulphonate; alkyl sulphates; alkyl ether sulphates and mixtures thereof.
  • the alkyl ether sulphate is a C 12 -C 14 n-alkyl ether sulphate with an average of 1 to 3EO (ethoxylate) units.
  • Sodium lauryl ether sulphate is particularly preferred (SLES).
  • the linear alkyl benzene sulphonate is a sodium C 11 to C 15 alkyl benzene sulphonates.
  • the alkyl sulphates is a linear or branched sodium C 12 to C 18 alkyl sulphates.
  • Sodium dodecyl sulphate is particularly preferred, (SDS, also known as primary alkyl sulphate).
  • two or more anionic surfactant are present, for example linear alkyl benzene sulphonate together with an alkyl ether sulphate.
  • anionic surfactant is selected from: linear alkyl benzene sulphonates; alkyl sulphates; alkyl ether sulphates; and mixtures thereof.
  • composition may comprise anionic and/or non-ionic surfactants.
  • the weight fraction of non-ionic surfactant to anionic surfactant is from 0 to 0.3. This means that non-ionic surfactant can be present (or it may be absent if the weight fraction is 0), but if non-ionic surfactant is present, then the weight fraction of the non-ionic surfactant is preferably at most 30% of the total weight of anionic surfactant + non-ionic surfactant.
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having an aliphatic hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids or amides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are the condensation products of aliphatic C 8 to C 18 primary or secondary linear or branched alcohols with ethylene oxide.
  • the non-ionic surfactant is an alcohol ethoxylate, more preferably a C 10 -C 18 alcohol ethoxylate having an average of 3-10 moles of ethylene oxide, most preferably an C 12 -C 15 alcohol ethoxylate having an average of 5-9 moles of ethylene oxide.
  • surfactants used are saturated.
  • surfactants such as those described in EP-A-328 177 (Unilever ), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074 , and alkyl monoglycosides.
  • the surfactant may comprise a cationic surfactant
  • the quaternary ammonium compound is a quaternary ammonium compound having at least one C 12 to C 22 alkyl chain.
  • the quaternary ammonium compound has the following formula: in which R 1 is a C 12 to C 22 alkyl or alkenyl chain; R 2 , R 3 and R 4 are independently selected from C 1 to C 4 alkyl chains and X - is a compatible anion.
  • R 1 is a C 12 to C 22 alkyl or alkenyl chain; R 2 , R 3 and R 4 are independently selected from C 1 to C 4 alkyl chains and X - is a compatible anion.
  • a preferred compound of this type is the quaternary ammonium compound cetyl trimethyl quaternary ammonium bromide.
  • a second class of materials for use with the present invention are the quaternary ammonium of the above structure in which R 1 and R 2 are independently selected from C 12 to C 22 alkyl or alkenyl chain; R 3 and R 4 are independently selected from C 1 to C 4 alkyl chains and X - is a compatible anion.
  • the composition optionally comprises a silicone.
  • One or more perfumes may be present as whole or part of the active ingredient of the laundry cleaning composition.
  • the composition preferably comprises a perfume.
  • the perfume is preferably present in the range from 0.001 to 3 wt.%, more preferably 0.05 to 0.5 wt.%, most preferably 0.1 to 1 wt.%.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • the perfume comprises at least one note (compound) from: alpha-isomethyl ionone, benzyl salicylate; citronellol; coumarin; hexyl cinnamal; linalool; Pentanoic acid, 2-methyl-, ethyl ester; octanal; benzyl acetate; 1,6-octadien-3-ol, 3,7-dimethyl-, 3-acetate; cyclohexanol, 2-(1,1-dimethylethyl)-, 1-acetate; delta-damascone; beta-ionone; verdyl acetate; dodecanal; hexyl cinnamic aldehyde; cyclopentadecanolide; benzeneacetic acid, 2-phenylethyl ester;amyl salicylate; beta-caryophyllene; ethyl undecylenate; geranyl an
  • Useful components of the perfume include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press ; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostr and; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA ).
  • compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.
  • top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955 ]).
  • Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
  • the Research Institute for Fragrance Materials provides a database of perfumes (fragrances) with safety information.
  • Perfume top note may be used to cue the benefit of the invention.
  • perfume components which it is advantageous to encapsulate include those with a relatively low boiling point, preferably those with a boiling point of less than 300, preferably 100-250 Celsius. It is also advantageous to encapsulate perfume components which have a low CLog P (i.e., those which will have a greater tendency to be partitioned into water), preferably with a CLog P of less than 3.0.
  • these materials have been called the "delayed blooming" perfume ingredients and include one or more of the following materials: allyl caproate, amyl acetate, amyl propionate, anisic aldehyde, anisole, benzaldehyde, benzyl acetate, benzyl acetone, benzyl alcohol, benzyl formate, benzyl iso valerate, benzyl propionate, beta gamma hexenol, camphor gum, laevo-carvone, d-carvone, cinnamic alcohol, cinamyl formate, cis-jasmone, cis-3-hexenyl acetate, cuminic alcohol, cyclal c, dimethyl benzyl carbinol, dimethyl benzyl carbinol acetate, ethyl acetate, ethyl aceto acetate, ethy
  • perfume components it is commonplace for a plurality of perfume components to be present in a formulation. It is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components from the list given of delayed blooming perfumes given above present in the perfume.
  • perfumes with which the present invention can be applied are the so-called ' aromatherapy' materials. These include many components also used in perfumery, including components of essential oils such as Clary Sage, Eucalyptus, Geranium, Lavender, Mace Extract, Neroli, Nutmeg, Spearmint, Sweet Violet Leaf and Valerian.
  • the laundry treatment composition does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
  • a peroxygen bleach e.g., sodium percarbonate, sodium perborate, and peracid.
  • One or more fluorescent agents may be present as whole or part of the active ingredient of the laundry cleaning composition.
  • the composition preferably comprises a fluorescent agent (optical brightener).
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.
  • Di-styryl biphenyl compounds e.g. Tinopal (Trade Mark) CBS-X
  • Di-amine stilbene di-sulphonic acid compounds e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH
  • Pyrazoline compounds e.g. Blankophor SN.
  • Preferred fluorescers are: sodium 2 (4-styryl-3-sulphophenyl)-2H-napthol[1,2-d]triazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulophonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulphonate, and disodium 4,4'-bis(2-sulphostyryl)biphenyl.
  • the total amount of the fluorescent agent or agents used in the composition is preferably from 0.0001 to 0.5 wt.%, more preferably 0.005 to 2 wt.%, most preferably 0.05 to 0.25 wt.%.
  • the aqueous solution used in the method preferably has a fluorescer present.
  • the fluorescer is preferably present in the aqueous solution used in the method in the range from 0.0001 g/l to 0.1 g/l, more preferably 0.001 to 0.02 g/l.
  • Enzymes may be present as whole or part of the active ingredient of the laundry cleaning composition.
  • One or more enzymes are preferably present in the laundry composition of the invention and when practicing a method of the invention.
  • the level of each enzyme in the laundry composition of the invention is from 0.0001 wt.% to 0.1 wt.%.
  • Levels of enzyme present in the composition preferably relate to the level of enzyme as pure protein.
  • Contemplated enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
  • the enzyme is selected from: proteases, alpha-amylases; cellulases and lipases.
  • Suitable lipases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful lipases include lipases from Humicola (synonym Thermomyces ), e.g. from H. lanuginosa ( T. lanuginosus ) as described in EP 258 068 and EP 305 216 or from H. insolens as described in WO 96/13580 , a Pseudomonas lipase, e.g. from P. alcaligenes or P. pseudoalcaligenes ( EP 218 272 ), P. cepacia ( EP 331 376 ), P. stutzeri ( GB 1,372,034 ), P.
  • lipase variants such as those described in WO 92/05249 , WO 94/01541 , EP 407 225 , EP 260 105 , WO 95/35381 , WO 96/00292 , WO 95/30744 , WO 94/25578 , WO 95/14783 , WO 95/22615 , WO 97/04079 and WO 97/07202 , WO 00/60063 .
  • Lipolase TM and Lipolase Ultra TM Lipex TM and Lipoclean TM (Novozymes A/S).
  • the method of the invention may be carried out in the presence of phospholipase classified as EC 3.1.1.4 and/or EC 3.1.1.32.
  • phospholipase is an enzyme which has activity towards phospholipids.
  • Phospholipids such as lecithin or phosphatidylcholine, consist of glycerol esterified with two fatty acids in an outer (sn-1) and the middle (sn-2) positions and esterified with phosphoric acid in the third position; the phosphoric acid, in turn, may be esterified to an amino-alcohol.
  • Phospholipases are enzymes which participate in the hydrolysis of phospholipids.
  • phospholipases A 1 and A 2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid
  • lysophospholipase or phospholipase B
  • Phospholipase C and phospholipase D release diacyl glycerol or phosphatidic acid respectively.
  • proteases hydrolyse bonds within peptides and proteins, in the laundry context this leads to enhanced removal of protein or peptide containing stains.
  • suitable proteases families include aspartic proteases; cysteine proteases; glutamic proteases; aspargine peptide lyase; serine proteases and threonine proteases. Such protease families are described in the MEROPS peptidase database ( http://merops.sanger.ac.uk/ ). Serine proteases are preferred. Subtilase type serine proteases are more preferred.
  • the term "subtilases" refers to a sub-group of serine protease according to Siezen et al., Protein Engng.
  • Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate.
  • the subtilases may be divided into 6 sub-divisions, i.e. the Subtilisin family, the Thermitase family, the Proteinase K family, the Lantibiotic peptidase family, the Kexin family and the Pyrolysin family.
  • subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867 , and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO 89/06279 and protease PD138 described in ( WO 93/18140 ).
  • proteases may be those described in WO 92/175177 , WO 01/016285 , WO 02/026024 and WO 02/016547 .
  • trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO 89/06270 , WO 94/25583 and WO 05/040372 , and the chymotrypsin proteases derived from Cellumonas described in WO 05/052161 and WO 05/052146 .
  • protease is a subtilisins (EC 3.4.21.62).
  • subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867 , and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO89/06279 and protease PD138 described in ( WO93/18140 ).
  • the subsilisin is derived from Bacillus, preferably Bacillus lentus, B.
  • subtilisin is derived from Bacillus gibsonii or Bacillus Lentus.
  • Suitable commercially available protease enzymes include those sold under the trade names names Alcalase ® , Blaze ® ; DuralaseTm, DurazymTm, Relase ® , Relase ® Ultra, Savinase ® , Savinase ® Ultra, Primase ® , Polarzyme ® , Kannase ® , Liquanase ® , Liquanase ® Ultra, Ovozyme ® , Coronase ® , Coronase ® Ultra, Neutrase ® , Everlase ® and Esperase ® all could be sold as Ultra ® or Evity ® (Novozymes A/S).
  • the invention may be use cutinase, classified in EC 3.1.1.74.
  • the cutinase used according to the invention may be of any origin.
  • Preferably cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.
  • Suitable amylases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus , e.g. a special strain of B. licheniformis , described in more detail in GB 1,296,839 , or the Bacillus sp. strains disclosed in WO 95/026397 or WO 00/060060 .
  • amylases are Duramyl TM , Termamyl TM , Termamyl Ultra TM , Natalase TM , Stainzyme TM , Fungamyl TM and BAN TM (Novozymes A/S), Rapidase TM and Purastar TM (from Genencor International Inc.).
  • Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus , Pseudomonas , Humicola , Fusarium , Thielavia , Acremonium , e.g.
  • Celluzyme TM Commercially available cellulases include Celluzyme TM , Carezyme TM , Celluclean TM , Endolase TM , Renozyme TM (Novozymes A/S), Clazinase TM and Puradax HA TM (Genencor International Inc.), and KAC-500(B) TM (Kao Corporation).
  • Celluclean TM is preferred.
  • Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus , e.g. from C . cinereus , and variants thereof as those described in WO 93/24618 , WO 95/10602 , and WO 98/15257 . Commercially available peroxidases include Guardzyme TM and Novozym TM 51004 (Novozymes A/S).
  • the aqueous solution used in the method preferably has an enzyme present.
  • the enzyme is preferably present in the aqueous solution used in the method at a concentration in the range from 0.01 to 10ppm, preferably 0.05 to 1ppm.
  • Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol such as propylene glycol or glycerol, a sugar or sugar alcohol, lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708 .
  • a polyol such as propylene glycol or glycerol
  • a sugar or sugar alcohol lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid
  • Builder materials may be present. If present then they are generally selected from 1) calcium sequestrant materials, 2) precipitating materials, 3) calcium ion-exchange materials and 4) mixtures thereof.
  • calcium sequestrant builder materials examples include alkali metal polyphosphates, such as sodium tripolyphosphate and organic sequestrants, such as ethylene diamine tetra-acetic acid.
  • precipitating builder materials examples include sodium orthophosphate and sodium carbonate.
  • Examples of calcium ion-exchange builder materials include the various types of water-insoluble crystalline or amorphous aluminosilicates, of which zeolites are well known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070 .
  • zeolites are well known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070 .
  • composition may also contain 0-65 % of a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenetriamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or the other builders mentioned below.
  • a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenetriamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nitrilotriacetic acid or the other builders mentioned below.
  • the laundry cleaning formulation is a non-phosphate built laundry detergent formulation, i.e., contains less than 1 wt.% of phosphate.
  • the laundry cleaning formulation is most preferably an aqueous liquid laundry detergent.
  • mono propylene glycol is present at a level from 1 to 30 wt.%, most preferably 2 to 18 wt.%.
  • composition may preferably comprise one or more polymers.
  • Example polymers are carboxymethylcellulose, poly(ethylene glycol), poly(vinyl alcohol), polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
  • Polymers present to prevent dye deposition may be present, for example poly(vinylpyrrolidone), poly(vinylpyridine-N-oxide), and poly(vinylimidazole).
  • Dyes are described in Color Chemistry Synthesis, Properties and Applications of Organic Dyes and Pigments, (H Zollinger, Wiley VCH, Switzerland, 2003 ) and, Industrial Dyes Chemistry, Properties Applications. (K Hunger (ed), Wiley-VCH Weinheim 2003 ).
  • Shading Dyes for use in laundry compositions preferably have an extinction coefficient at the maximum absorption in the visible range (400 to 700nm) of greater than 5000 L mol -1 cm -1 , preferably greater than 10000 L mol -1 cm -1 .
  • the dyes are blue or violet in colour.
  • the composition comprises a shading dye.
  • the shading dye is present at from 0.0001 to 0.1 wt.% of the composition.
  • Preferred shading dye chromophores are azo, azine, anthraquinone, and triphenylmethane.
  • Azo, anthraquinone, phthalocyanine and triphenylmethane dyes preferably carry a net anionic charge or are uncharged.
  • Azine preferably carry a net anionic or cationic charge.
  • Blue or violet shading dyes deposit to fabric during the wash or rinse step of the washing process providing a visible hue to the fabric. In this regard the dye gives a blue or violet colour to a white cloth with a hue angle of 240 to 345, more preferably 250 to 320, most preferably 250 to 280.
  • the white cloth used in this test is bleached non-mercerised woven cotton sheeting.
  • Shading dyes are discussed in WO 2005/003274 , WO 2006/032327(Unilever ), WO 2006/032397(Unilever ), WO 2006/045275(Unilever ), WO 2006/027086(Unilever ), WO 2008/017570(Unilever ), WO 2008/141880 (Unilever ), WO 2009/132870(Unilever ), WO 2009/141173 (Unilever ), WO 2010/099997(Unilever ), WO 2010/102861 (Unilever ), WO 2010/148624(Unilever ), WO 2008/087497 (P&G ), WO 2011/011799 (P&G ), WO 2012/054820 (P&G ), WO 2013/142495 (P&G ) and WO 2013/151970 (P&G ).
  • Mono-azo dyes preferably contain a heterocyclic ring and are most preferably thiophene dyes.
  • Alkoxylated thiophene dyes are discussed in WO/2013/142495 and WO/2008/087497 . Preferred examples of thiophene dyes are shown below: and,
  • Bis-azo dyes are preferably sulphonated bis-azo dyes.
  • Preferred examples of sulphonated bis-azo compounds are direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51, Direct Violet 66, direct violet 99 and alkoxylated versions thereof. Alkoxylated bis-azo dyes are discussed in WO2012/054058 and WO2010/151906 .
  • alkoxylated bis-azo dye is :
  • Thiophene dyes are available from Milliken under the tradenames of Liquitint Violet DD and Liquitint Violet ION.
  • Azine dyes are preferably selected from sulphonated phenazine dyes and cationic phenazine dyes. Preferred examples are acid blue 98, acid violet 50, dye with CAS-No 72749-80-5 , acid blue 59, and the phenazine dye selected from: wherein:
  • the shading dye is present in the composition in range from 0.0001 to 0.5 wt %, preferably 0.001 to 0.1 wt%. Depending upon the nature of the shading dye there are preferred ranges depending upon the efficacy of the shading dye which is dependent on class and particular efficacy within any particular class. As stated above the shading dye is a blue or violet shading dye.
  • a mixture of shading dyes may be used.
  • the shading dye is most preferably a reactive blue anthraquinone dye covalently linked to an alkoxylated polyethyleneimine.
  • the alkoxylation is preferably selected from ethoxylation and propoxylation, most preferably propoxylation.
  • 80 to 95 mol% of the N-H groups in the polyethylene imine are replaced with iso-propyl alcohol groups by propoxylation.
  • the polyethylene imine before reaction with the dye and the propoxylation has a molecular weight of 600 to 1800.
  • An example structure of a preferred reactive anthraquinone covalently attached to a propoxylated polyethylene imine is:
  • alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains.
  • the alkyl groups are preferably linear or branched, most preferably linear.
  • indefinite article “a” or “an” and its corresponding definite article “the” as used herein means at least one, or one or more, unless specified otherwise.
  • Trimellitic acid was used as purchased from ACROS Organics. Trimellitic anhydride and pyromellitic acid was used as purchased from Alfa Aesar. Phenoxyethanol, para-toluene sulfonic acid and titanium isopropoxide were used as purchased from Merck. Methanesulfonic acid, 4-dodecylbenzenesulfonic acid mixture of isomers and benzyl alcohol were used as purchased from Sigma Aldrich.
  • Lauryl/myristyl alcohol and cetearyl alcohol were used in technical grade quality and their molecular masses were determined prior to use by measuring the hydroxyl value (OH-value) and subsequently calculating the molecular weight (per hydroxyl function, "Gebrauchsmol”).
  • the OH-value may be measured according to DIN 53240.
  • the acid number (acid value) may be measured according to DIN EN ISO 2114.
  • Polyglykols M are mono hydroxy-functional polyethylene glycol monomethyl ethers (M-PEG, CAS-Nr. 9004-74-4).
  • Polyglykol M 500 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that has a molecular weight of 470-530 g/mol.
  • Polyglykol M 750 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that has a molecular weight of 720-780 g/mol.
  • Polyglykol M 1000 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that has a molecular weight of 970 - 1060 g/mol.
  • Polyglykol M 1250 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that has a molecular weight of 1125-1375 g/mol.
  • Polyglykol M 2000 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that has a molecular weight of 1800 - 2200 g/mol.
  • the degree of alkoxylation of the used methyl polyglykols may be checked using NMR spectroscopy, for example using 1 H-NMR spectroscopy in analogy to the method described in R. Stevanova, D. Rankoff, S. Panayotova, S.L. Spassov, J. Am. Oil Chem. Soc., 65, 1516-1518 (1988 ).
  • NMR spectroscopy for example using 1 H-NMR spectroscopy in analogy to the method described in R. Stevanova, D. Rankoff, S. Panayotova, S.L. Spassov, J. Am. Oil Chem. Soc., 65, 1516-1518 (1988 ).
  • the samples are derivatised by reacting them with trichloro acetyl isocyanate and measured as solutions in deuterated chloroform containing 1 weight-% (1 wt.-%) of tetramethyl silane as an internal standard.
  • esterification reactions were controlled by determining the residual content of alcohol (e.g. benzyl alcohol, phenoxyethanol, lauryl myristyl alcohol and cetearyl alcohol) by GC-FID. Calibration was performed with pure starting materials. Gas chromatography (GC) was performed using a Hewlett Packard GC 6890 with autosampler, coupled with a flame-ionisation detector (FID).
  • alcohol e.g. benzyl alcohol, phenoxyethanol, lauryl myristyl alcohol and cetearyl alcohol
  • samples were separated on a 50 m x 0.2 mm, 0.33 ⁇ m film column.
  • the column temperature was initially held at 50°C, then the temperature was raised to 175°C at a rate of 5°C per minute and from 175°C to 300°C at a rate of 25°C per minute.
  • the injector temperature was maintained at 250°C and the injection volume was 1.0 ⁇ L in the split mode.
  • Helium was used as a carrier gas with a constant pressure of 1.8 bar.
  • the samples were prepared by diluting 500 mg of sample (duplicate analysis) with 5 ml of methanol.
  • samples were separated on a 25 m x 0.32 mm, 0.52 ⁇ m film column.
  • the column temperature was initially held at 50°C, then the temperature was raised to 250°C at a rate of 10°C per minute and held for 6.5 minutes.
  • the injector temperature was maintained at 250°C and the injection volume was 1.0 ⁇ L in the split mode.
  • Helium was used as a carrier gas with a constant pressure of 0.9 bar.
  • the samples were prepared by diluting 500 mg of sample (duplicate analysis) with 5 ml of methanol.
  • TLC Thin layer chromatography
  • the alcohol alkoxylate of choice was heated to 80°C with stirring under nitrogen.
  • the polycarboxylic acid or acid anhydride of choice was then added in portions over 5 minutes.
  • the reaction mixture was then stirred for 2.5 hours at 80°C.
  • the product, henceforth termed precursor, was isolated and the acid number determined - these are listed in Table I in the column AN1.
  • sample C1 from Table I was isolated after the first synthesis step and no reaction with alcohol was performed.
  • the formulation was used to wash eight 5x5 cm knitted cotton cloth pieces in a Tergotometer set at 200 rpm (revolutions per minute). A one hour wash was conducted in 800 ml of water with 26° French hardness at 20°C, with 2.3 g/l of the formulation shown in Table II. To simulate particulate soil that could redeposit, 0.04 g/l of 100% compressed carbon black (ex Alfa Aesar) was added to the wash liquor. To simulate oily sebaceous soil, 7.2 g of an SBL2004 soil strip (ex Warwick Equest) was added to the wash liquor.
  • the inventive dispersants enhance anti-redeposition.

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Claims (11)

  1. Composition nettoyante de lessive comprenant :
    (i) de 0,2 à 20 % en masse, de préférence 0,5 à 12 % en masse, encore mieux 1 à 10 % en masse d'un dispersant alcoxylé de la structure suivante :
    Figure imgb0019
     où :
    X est choisi parmi : éthoxy ; et des mélanges de groupes éthoxy et propoxy, où le nombre de groupes éthoxy est supérieur au nombre de groupes propoxy, et où n est de 6 à 70 ;
    m est égal à 2 ;
    R1 est choisi parmi : des groupes alkyle en C12 à C20 non chargés ;
    groupes aryle non chargés ; et, groupes alkyle-aryle non chargés où le groupe alkyle du alkyle-aryle est un C1 à C3 linéaire ou ramifié saturé ;
    T est CH3 ;
    (ii) de 0 à 50 % en masse de tensioactif, différent du dispersant alcoxylé ; et
    (iii) un ingrédient actif choisi parmi un ou plusieurs des suivants : de 0,001 à 3 % en masse de parfum ; de 0,0001 à 0,5 % en masse d'agent fluorescent ; et, de 0,0001 % en masse à 0,1 % en masse d'une enzyme.
  2. Composition nettoyante de lessive selon la revendication 1, où R1 est un groupe alkyle-aryle.
  3. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où n est de 6 à 40, de préférence de 9 à 30, encore mieux de 10 à 20.
  4. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où R1 est choisi parmi : phényléthyle et benzyle, de préférence R1 est un benzyle.
  5. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où le dispersant alcoxylé est choisi parmi :
    Figure imgb0020
  6. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où le tensioactif est présent à une teneur de 4 à 40 % en masse, de préférence de 4 à 35 % en masse, encore mieux de 6 à 30 % en masse, et le tensioactif comprend des tensioactifs anioniques et/ou non-ioniques, de préférence où la fraction de masse de tensioactif non-ionique à tensioactif anionique est de 0 à 0,3, où le dispersant alcoxylé n'est pas considéré comme un dispersant comme défini ici.
  7. Composition nettoyante de lessive selon la revendication 6, où le tensioactif anionique est choisi parmi : des benzènesulfonates d'alkyle linéaire ; sulfates d'alkyle ; sulfates d'alkyléthers ; et des mélanges de ceux-ci.
  8. Composition nettoyante de lessive selon la revendication 6 ou revendication 7, comprenant un tensioactif non-ionique, où le tensioactif non-ionique est un éthoxylate d'alcool, de préférence un éthoxylate d'alcool en C10-C18 ayant une moyenne de 3-10 moles d'oxyde d'éthylène, encore mieux un éthoxylate d'alcool en C12-C15 ayant une moyenne de 5-9 moles d'oxyde d'éthylène.
  9. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où la composition est une composition de détergent liquide aqueuse ayant un pH de 6 à 8,5, de préférence de 6,5 à 7,5, encore mieux de 6,8 à 7,2, bien mieux encore de 7,0.
  10. Composition nettoyante de lessive selon l'une quelconque des revendications précédentes, où l'ingrédient actif est une enzyme et comprend une ou plusieurs des suivantes : protéases, alpha-amylases, cellulases, lipases, peroxydases/oxydases, pectate lyases, et mannanases, ou mélanges de celles-ci, de préférence l'enzyme est une protéase, encore mieux une sérine protéase de type subtilase.
  11. Procédé domestique de traitement d'un textile, le procédé comprenant les étapes de :
    (i) traitement d'un textile avec une solution aqueuse du dispersant alcoxylé comme défini dans l'une quelconque des revendications 1 à 5 ;
    la solution aqueuse comprenant de 10 ppm à 5 000 ppm, de préférence de 100 ppm à 1 000 ppm du dispersant alcoxylé ; et, de 0 à 6 g/L, de préférence de 0,5 à 6 g/L, encore mieux de 1 à 5 g/L d'un tensioactif, différent du dispersant alcoxylé ; et,
    (ii) éventuellement rinçage et séchage du textile ;
    où dans le procédé un ou plusieurs d'un ingrédient actif choisi parmi un parfum, agent fluorescent et une enzyme est présent dans la solution aqueuse du dispersant alcoxylé,
    où si présent, la teneur du parfum dans la solution aqueuse est de 0,1 à 100 ppm ;
    où si présent, la teneur de l'agent fluorescent dans la solution aqueuse est de 0,0001 g/l à 0,1 g/L, de préférence de 0,001 à 0,02 g/L ; et,
    où si présent, la teneur de l'enzyme dans la solution aqueuse est de 0,01 à 10 ppm, de préférence 0,05 à 1 ppm.
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EP3649222A1 (fr) 2020-05-13
CN110869480B (zh) 2021-08-13
ZA201908604B (en) 2021-04-28
WO2019008036A1 (fr) 2019-01-10
CN110869480A (zh) 2020-03-06
AR112380A1 (es) 2019-10-23
BR112020000201A2 (pt) 2020-07-07

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