WO2017140412A1 - Composition biocide à température stable pour des fluides de traitement de métaux - Google Patents

Composition biocide à température stable pour des fluides de traitement de métaux Download PDF

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Publication number
WO2017140412A1
WO2017140412A1 PCT/EP2017/000152 EP2017000152W WO2017140412A1 WO 2017140412 A1 WO2017140412 A1 WO 2017140412A1 EP 2017000152 W EP2017000152 W EP 2017000152W WO 2017140412 A1 WO2017140412 A1 WO 2017140412A1
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Prior art keywords
component
range
molar ratio
composition according
weight
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PCT/EP2017/000152
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German (de)
English (en)
Inventor
Rüdiger Baum
Holger Bittermann
Original Assignee
Thor Gmbh
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Filing date
Publication date
Application filed by Thor Gmbh filed Critical Thor Gmbh
Priority to EP17704390.8A priority Critical patent/EP3416485A1/fr
Publication of WO2017140412A1 publication Critical patent/WO2017140412A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/09—Characteristics associated with water
    • C10N2020/097—Refrigerants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/16—Antiseptic; (micro) biocidal or bactericidal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal

Definitions

  • the present invention relates to biocidal compositions containing the components: (a) from 15% to 30% by weight of 1,2-benzisothiazolin-3-one, (b) at least one alkanolamine selected from the group consisting of triethanolamine, triisopropanolamine and alkanolamines having alkyl groups which are selected from the group of methyl, ethyl, isopropyl, propyl, butyl and mixtures thereof, (c) at least one compound according to the general formula
  • R 1, R 2 , R 3 and R 4 may be the same or different and each is a substituted alkyl group having 2 to 6 carbon atoms in which the substituents R 19 R 2 , R 3 and R 4 have one or more carbon atoms other than the ⁇ - And n is from 2 to about 6, and (d) ad 100% by weight of water, wherein the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 0.7 to 1: 2.5, and the molar ratio of component (b) to (c) is in the range of 1: 0.1 to 1:20.
  • the invention further relates to the use of these biocidal compositions in aqueous liquids, such as
  • Metalworking fluids such as cooling lubricants, coolants or drilling and cutting oils are used in manufacturing technology for drilling, milling, cutting or forming on machine tools of heat dissipation and reduction of friction between tool and mostly metallic workpiece by lubrication. In addition, they are used in machining processes to remove the chips by rinsing from the work environment. Another important side effect of metalworking fluids is the corrosion protection of the workpiece.
  • Non-water miscible metalworking fluids are generally unalloyed or alloyed oils.
  • Non-water-miscible metalworking fluids are most commonly used when high lubricity is required. Their disadvantage is the higher purchase and disposal costs. Furthermore, they can not provide a cooling effect by a vaporizing Wasserariteil.
  • Water-mixed metalworking fluids contain a high level of water, generally about 95%. They are produced on site from water-mixable concentrates, or already obtained as ready-to-use emulsions.
  • the non-aqueous component consists mostly of oils, possibly of mineral origin and possibly emulsifiers and / or additives.
  • Water-blended metalworking fluids provide good heat dissipation, but have lower lubricity than non-water-mixed metalworking fluids. Because of the high water content, water-blended metalworking fluids are less expensive for both procurement and disposal than non-water-blended coolants.
  • microorganisms can cause both the formation of microbial deposits on machine surfaces, the clogging of nozzles and pipes, as well as the deterioration of the properties of the metalworking fluids, increased corrosion, health and odor problems.
  • the decomposition of the metalworking fluids caused by the growth of microorganisms leads to the loss of the essential properties of the liquids. Due microbial metabolites may decrease the pH of the fluids and cause changes in the fluids until the fluids no longer have adequate slip or corrosion protection properties. At this point, the metalworking fluid must be replaced with a fresh one, resulting in a loss of production time.
  • Biocides can be incorporated as liquid concentrates, or added directly to dilute liquids once they are in the tank containers of the processing machine concerned.
  • Hexahydro-1,3,5-tris (2-hydroxyethyl) -s-triazine has long been used as a biocide in metalworking fluids to control both bacterial and fungal growth.
  • Hexahydro-1,3,5-tris (2-hydroxyethyl) -5-triazine can be readily prepared from formaldehyde and ethanolamine and is known commercially as "triazine.”
  • Triazine is marketed in various concentrations in water by many companies , for example, under the trade name EMULCID of the company THOR.
  • isothiazolinones An alternative to formaldehyde-containing biocides for use in metalworking fluids are the so-called isothiazolinones.
  • a member of the family of isothiazolinones, the l, 2-benzisothiazolin-3-one (BIT) or its sodium, potassium and lithium salts have long been active ingredients used in the preparation of microbicidally active formulations.
  • BIT 2-benzisothiazolin-3-one
  • 1, 2-Benzisothiazolin-3-one is characterized by a good chemical and thermal stability and basically has a broad antimicrobial effect, for example against bacteria, fungi and yeasts.
  • compositions of crude 1,2-benzisothiazolin-3-one have been developed in the past consisting of solutions of the product in an amine or amine mixture optionally containing some water. These compositions are described in patents GB 1191253 and GB 1330531.
  • the compositions described in the first patent are said to be storage stable up to 0 ° C and even below, while the compositions described in the second patent are said to be storage stable even down to temperatures down to -10 ° C.
  • the compositions described in the abovementioned documents are not yet sufficiently stable from the end user's point of view and tend to crystallize as early as 4 ° C.
  • the object of the invention was to provide flowable, stable biocidal compositions, in particular for
  • alkanolamine selected from the group consisting of triethanolamine, triisopropanolamine and alkanolamines having alkyl groups selected from the group consisting of methyl, ethyl, isopropyl, propyl, butyl and mixtures thereof,
  • R j, R 2 , R 3 and R 4 may be the same or different and each is a substituted alkyl group having 2 to 6 carbon atoms in which the substituents R 1; R 2 , R 3 and R 4 have one or more hydroxyl groups bonded to carbon atoms other than the ⁇ -carbon atom, and n is 2 to about 6, and
  • the biocide composition is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 0.7 to 1: 2.5, and the molar ratio of the component ( b) to (c) is in the range of 1: 0.1 to 1: 20.
  • biocidal compositions based on 1,2-benzisothiazolin-3-one, also referred to below as BIT, have now been found which advantageously overcome the disadvantages of the prior art.
  • the biocidal compositions are characterized in particular by a high storage stability and are particularly suitable for use in metalworking fluids.
  • stable and storage stable in the present case mean that the compositions deposit almost no solids on prolonged storage and do not crystallize or solidify even at sustained temperatures of 0 ° C. The latter characteristic is important in the event that the compositions are stored outdoors in cool regions. Should the compositions according to the invention freeze as a result of even lower temperatures, they thaw again without changing their properties and return to their original state. In addition, they advantageously have stability to repeated freezing and thawing.
  • component (b) is at least one alkanolamine selected from the group triethanolamine, triisopropanolamine and alkanolamines having alkyl groups selected from the group of methyl, ethyl, isopropyl, propyl, butyl and mixtures thereof.
  • alkanolamine in the present case means that the biocidal composition of the invention contains one, two, three or more alkanolamine (s).
  • component (b) is triethanolamine and / or triisopropanolamine.
  • component (c) is at least one compound according to the general formula:
  • R l9 R 2 , R 3 and R 4 may be the same or different and each is a substituted alkyl group of 2 to 6 carbon atoms in which the substituents R l5 R 2 , R 3 and R4 are one or more of carbon atoms other than the ⁇ -Carbon atom have attached hydroxyl groups, and n is 2 to about 6.
  • At least one compound according to the general formula in the present case means that the invention Biocide composition comprises one, two, three or more compound (s) according to the general formula.
  • component (c) is tetrakis (2-hydroxypropyl) ethylenediamine.
  • the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 0.7 to 1: 2.5 and the molar ratio of component (b) to (c ) in the range of 1: 0.1 to 1:20.
  • biocidal compositions which fulfill these conditions have a particularly high storage stability.
  • the biocidal composition is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 1 to 1: 2.2, and the molar Ratio of component (b) to (c) in the range of 1: 0.1 to 1: 2.
  • the biocidal composition is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 1.2 to 1: 1.9, and the molar ratio of component (b) to (c) is in the range of 1: 0.1 to 1: 1.3.
  • the biocidal composition according to the invention contains component (n) (a) in the range from 18 to 27% by weight, component (n) (b) in the range from 8 to 35% by weight, component ( n) (c) in the range of 5 to 35% by weight and component (d) in the range of 22 to 45% by weight.
  • the biocide composition in this case is further characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is in the range of 1: 1, 2 to 1: 1.9, and the molar Ratio of component (b) to (c) in the range of 1: 0.1 to 1: 1.3.
  • the biocide composition according to the invention comprises, or consists of:
  • the biocide composition according to this embodiment is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is 1: 1, 3, and the molar ratio of component (b) to (c) 1: 1, 2 is.
  • the biocide composition according to the invention comprises, or consists of:
  • the biocide composition according to this embodiment is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is 1: 1.3, and the molar ratio of component (b) to (c) 1: 0.8.
  • the biocide composition according to the invention comprises, or consists of:
  • the biocidal composition according to this embodiment is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is 1: 1.2 and the molar ratio of component (b) to (c) 1: 1.
  • the biocide composition according to the invention comprises, or consists of:
  • the biocide composition according to this embodiment is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is 1: 1, 8, and the molar ratio of component (b) to (c) 1: 0.17.
  • the biocide composition according to the invention comprises, or consists of:
  • the biocidal composition according to this embodiment is characterized in that the molar ratio of component (a) to the sum of components (b) and (c) is 1: 1, 7, and the molar ratio of component (b) to (c ) Is 1: 0, 13.
  • a composition comprising exclusively components (a), (b), (c) and (d) in the stated weight ratios, without the presence of a further microbicidal active component is referred to in the context of the present invention as "biocidal composition according to the invention".
  • the "biocide composition according to the invention” can have one or more further constituents in the stated weight ratios.
  • the further constituents may have a microbicidal action, or they may not have a microbicidal action, that is to say be a solvent, dispersant or suspending agent.
  • the "biocide composition according to the invention” consists of the components (a), (b), (c) and (d) in the above-indicated mixing ratios (ie the biocide composition according to the invention). This means that the composition according to the invention contains exclusively components (a), (b), (c) and (d).
  • the biocide composition according to the invention consists "essentially" of the components according to the invention (a), (b), (c) and (d), ie that in addition to these probably still one or more other biocides may be present, but these are present in an amount in which no contribution of the respective of the components the microbicidal active components according to the invention of different biocides to the overall effect of the resulting mixture is present.
  • the biocidal composition according to the invention contains one or more complexing agents.
  • Particularly suitable chelating agents include methylglycinediacetic acid (MGDA), ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), tripolyphosphate (TPP), citrates, phosphonates, crown ethers, polyamines, especially diamines and triamines.
  • Particularly preferred complexing agents are EDTA, NTA and MGDA. It has been found that the use of one or more complexing agents leads to antimicrobially more effective compositions.
  • the biocidal composition of the invention further contains one or more microbicidal active components selected from the group consisting of formaldehyde, hexahydro-l, 3,5-tris (2-hydroxyethyl) -s-triazine, tetramethylolacetylenediurea, sodium pyrithione, 2-n Octylisothiazolin-3-one, 3-iodo-2-propynyl-N-butylcarbamate, N-alkyl-1,2-benzisothiazolin-3-one, 2-methylisothiazolin-3-one and 5-chloro-2-methylisothiazolin-3 -one.
  • microbicidal active components selected from the group consisting of formaldehyde, hexahydro-l, 3,5-tris (2-hydroxyethyl) -s-triazine, tetramethylolacetylenediurea, sodium pyrithione, 2-n Octylisothia
  • N-alkyl-1,2-benzisothiazolin-3-ones are those with C 1-5 -alkyl.
  • Examples of these compounds include Nn-butyl, N-methyl, N-ethyl, Nn-propyl, N-isopropyl, Nn-pentyl, N-cyclopentyl, N-isobutyl and N-tert-butyl -l, 2-benzisothiazolin-3-one.
  • the biocidal composition according to the invention contains, as further microbicidal active components, sodium pyrithione, or methylisothiazolin-3-one or N-methyl-1,2-benzisothiazolin-3-one and / or Nn-butyl-1,2-benzisothiazolin-3 -one, or 2-n-octylisothiazolin-3-one, or 3-iodo-2-propynyl-N-butylcarbamate.
  • a distinction is made between water-miscible and water-mixed metalworking fluids or cooling lubricants.
  • water-mixed is the final state of the finished medium, usually in the form of an oil-in-water emulsion, and understood by “water-miscible” the concentrate of the metalworking fluid or the cooling lubricant.
  • Water-mixed coolants are manufactured by the user by mixing the concentrate with water.
  • the invention thus also relates to a water-miscible metalworking fluid containing the biocide composition characterized above.
  • This water-miscible metal-working fluid generally contains 0.01 to 5% by weight, preferably 0.04 to 1% by weight of the active ingredient (1,2-benzisothiazolin-3-one) of the biocide composition of the present invention based on the total amount of the water-miscible metal working fluid.
  • the other constituents of the water-miscible metalworking fluid are known to the person skilled in the art. These are usually natural and / or synthetic mineral oils, glycols, emulsifiers, pH adjusting and buffering agents, anti-corrosive additives, solubilizers and other common additives.
  • the invention thus relates to a concentrated metalworking fluid containing the biocidal composition according to the invention, wherein component (a), 1,2-benzisothiazolin-3-one, is present in an effective amount such that the growth of at least one microorganism can be controlled, if the concentrated metalworking fluid is diluted and used at the metalworking site.
  • the invention further relates to a water-mixed metalworking fluid containing a biocide composition as characterized above.
  • Metalworking fluid in the context of the present invention means the liquids already defined at the beginning, which are used for the purpose of metalworking. These liquids are known to those skilled in the art, for example, as coolants, coolants, or drilling and cutting oils.
  • the metalworking fluid generally contains 0.01 to 1.0 wt%, preferably 0.005 to 0.05 wt% of the active ingredient (1,2-benzisothiazolin-3-one) of the biocide composition of the present invention, based on the total amount of the water-mixed metalworking fluid ,
  • the invention thus also relates to a water-mixed metalworking liquid containing 0.01 to 1 wt .-%, preferably 0.005 to 0.05 Wt .-% of the active ingredient of the inventive biocide composition, based on the total amount of the water-mixed metalworking fluid.
  • the invention further relates to a method for controlling the growth of at least one microorganism in an aqueous liquid, comprising the step of adding a biocide composition comprising the components:
  • alkanolamine selected from the group consisting of triethanolamine, triisopropanolamine and alkanolamines having alkyl groups selected from the group consisting of methyl, ethyl, isopropyl, propyl, butyl and mixtures thereof,
  • R 1, R 2 , R 3 and R 4 may be the same or different and each is a substituted alkyl group of 2 to 6 carbon atoms in which the substituents R 15 R 2 , R 3 and R 4 have one or more carbon atoms other than the Have carbon atom-bonded hydroxyl groups, and n is 2 to about 6, and (d) ad 100% by weight of water,
  • the aqueous liquid is a metal working fluid such as a cooling lubricant, a cooling lubricant, or a drill oil, or a cutting oil.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

La présente invention concerne des compositions biocides comprenant les composants suivants : (a) 15 % en poids à 30 % en poids de la 1,2-benzisothiazoline-3-one, (b) au moins une alcanolamine choisie dans le groupe constitué par la triéthanolamine, la triisopropanolamine et les alcanolamines, dotée de groupes alkyle choisis dans le groupe constitué par le méthyle, l'éthyle, l'isopropyle, le propyle, le butyle et leurs mélanges, (c) au moins un composé de formule générale, R1, R2, R3 et R4 pouvant être identiques ou différents et étant respectivement un groupe alkyle substitué doté de 2 à 6 atomes de carbone, les substituants R1, R2, R3 et R4 possédant un ou plusieurs groupes hydroxyle liés à d'autres atomes de carbone que l'atome de carbone α, et n étant 2 à environ 6, et (d) on complète à 100 % en poids d'eau, le rapport molaire du composant (a) à la somme des composants (b) et (c) étant dans la plage de 1 : 0,7 à 1 : 2,5, et le rapport molaire du composant (b) à (c) étant dans la plage de 1 : 0,1 à 1 : 20. La présente invention concerne en outre l'utilisation de ces compositions biocides dans des fluides aqueux, tels que des fluides de traitement de métaux.
PCT/EP2017/000152 2016-02-15 2017-02-06 Composition biocide à température stable pour des fluides de traitement de métaux WO2017140412A1 (fr)

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EP17704390.8A EP3416485A1 (fr) 2016-02-15 2017-02-06 Composition biocide à température stable pour des fluides de traitement de métaux

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191253A (en) 1968-02-21 1970-05-13 Ici Ltd New Compositions of Matter
GB1330531A (en) 1970-03-31 1973-09-19 Ici Ltd 1,2-benzisothiazolone solutions
US4188376A (en) * 1977-09-30 1980-02-12 Imperial Chemical Industries Limited Stable liquid compositions containing salts of 1,2-benzisothiazolin-3-one
WO1994016564A1 (fr) * 1993-01-19 1994-08-04 Zeneca Limited Compositions liquides stables et leur utilisation
CN102796606A (zh) * 2012-08-21 2012-11-28 东北大学 一种含有机硼酸酯的纯水基冷轧薄板轧制液及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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