EP1622454A1 - Agents microbicides - Google Patents

Agents microbicides

Info

Publication number
EP1622454A1
EP1622454A1 EP04727268A EP04727268A EP1622454A1 EP 1622454 A1 EP1622454 A1 EP 1622454A1 EP 04727268 A EP04727268 A EP 04727268A EP 04727268 A EP04727268 A EP 04727268A EP 1622454 A1 EP1622454 A1 EP 1622454A1
Authority
EP
European Patent Office
Prior art keywords
mixture according
active
microorganisms
mit
cmk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04727268A
Other languages
German (de)
English (en)
Inventor
Peter Wachtler
Martin Kugler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanxess Deutschland GmbH
Original Assignee
Lanxess Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanxess Deutschland GmbH filed Critical Lanxess Deutschland GmbH
Publication of EP1622454A1 publication Critical patent/EP1622454A1/fr
Withdrawn legal-status Critical Current

Links

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

Definitions

  • the present application relates to new mixtures containing p-chloro-m-cresol (CMK) and 2-methyl-2H-isothiazol-3-one (MIT), process for their
  • CMK p-Chloro-m-cresol
  • sodium or potassium salt have long been used in practice for the preparation of microbicidal formulations and disinfectants.
  • active substances generally have a broad antimicrobial activity against microorganisms such as bacteria, fungi or yeasts and are advantageously characterized by good chemical and thermal stability.
  • the level of action is not always satisfactory in some applications due to the relatively high lipophilicity of CMK and, as a result, the required concentration can be in an economically unfavorable range.
  • MIT 2-Methyl-2H-isothiazol-3-one
  • CMK p-chloro-m-cresol and / or its sodium or potassium salt
  • MIT 2-methyl-2H-isothiazol-3-one
  • the present invention therefore relates to mixtures which are characterized in that they have p-chloro-m-cresol (CMK) and / or its sodium or potassium salt and 2-methyl-2H-isothiazol-3-one (MIT) as active components contain.
  • the mixtures according to the invention have a strong action against microorganisms and can be used to protect industrial materials against attack and destruction by microorganisms.
  • the mixtures according to the invention are surprisingly distinguished in that they have an unexpectedly high, synergistic increase in activity in specific mixing ratios. It follows from this that the use concentrations required to protect technical products in the case of the mixtures according to the invention can be reduced compared to the required concentrations in the case of the individual active compounds. This is extremely advantageous from an economic, ecological and application point of view and makes a contribution to increasing the quality of the preservation.
  • Infestation by microorganisms can be preserved.
  • Chemical building products such as concrete additives, for example based on molasses, lignin sulfonates or polyacrylates, bitumen emulsions or joint sealants
  • Pressure thickener based on natural raw materials such as alginates, guar gums, gum arabic, corn, wheat or rice starches
  • Starch solutions or slurries or other starch-based products such as Pressure thickener or wallpaper paste
  • Slurries of other raw materials such as color pigments (e.g. iron oxide pigments, carbon black pigments, titanium dioxide pigments) or slurries of fillers and coating pigments such as kaolin, calcium carbonate or talc, preliminary and intermediate products of the chemical industry, e.g. in dye production and storage.
  • color pigments e.g. iron oxide pigments, carbon black pigments, titanium dioxide pigments
  • fillers and coating pigments such as kaolin, calcium carbonate or talc, preliminary and intermediate products of the chemical industry, e.g. in dye production and storage.
  • the mixtures according to the invention can additionally contain one or more other biocidal active ingredients or can be combined with these by separate addition into the products to be protected.
  • biocidal active ingredients or can be combined with these by separate addition into the products to be protected.
  • the following compounds are mentioned as preferred mixture partners:
  • Phenyl ethyl alcohol o-phenyl phenol (OPP) o-phenyl phenol
  • TMAD Poly (hexamethylenebiguanide) hydrochloride tetramethylolacetylenediourea
  • the amounts of p-chloro-m-cresol (CMK) and / or its sodium or potassium salt and 2-methyl-2H-isothiazol-3-one (MIT) in the mixtures according to the invention can vary over a wide range.
  • the ratio of p-chloro-m-cresol (CMK) or its sodium or potassium salt to 2-methyl-2H-isothiazole- is in such mixtures with a broad anti-microbial effect, which serve to protect functional liquids and water-containing technical products.
  • 3-one (MIT) normally in a weight ratio of 100: 1 to 1: 100, preferably 50: 1 to 1:50, particularly preferably 10: 1 to 1:10.
  • the mixtures according to the invention are used in material protection to protect technical materials, in particular to protect aqueous functional liquids and water-containing technical products.
  • Bacteria, mold, yeast and mucus organisms Bacteria, mold, yeast and mucus organisms.
  • Alcaligenes such as Alcaligenes faecalis, Bacillus like Bacillus subtilis, Escherichia like Escherichia coli, Proteus like Proteus vulgaris, Pseudomonas like Pseudomonas aeruginosa or Pseudomonas fluorescens, Staphylococcus like Staphylococcus aureus.
  • Candida such as Candida albicans, Geotrichum such as Geotrichum candidum, Rhodotorula such as Rhodotorula rübra, Saccharomyces such as Saccharomyces cerevisiae.
  • the mixtures according to the invention can be prepared by mixing the individual components, if appropriate with the addition of one or more solvents and, if appropriate, further antimicrobially active compounds.
  • the mixtures according to the invention can either be applied separately in the form of metering in the individual active ingredients, depending on the preservation problem at hand, the concentration ratio can be adjusted individually, or one can be metered in Active ingredient mixture take place.
  • the mixture according to the invention can previously be converted into a customary formulation, such as, for example, a solution, emulsion, suspension, powder, foams, pastes, granules, aerosols and very fine encapsulations in polymeric substances.
  • formulations can be prepared in a known manner, for example by mixing the mixture according to the invention or the individual active compounds comprised therein with extenders, that is liquid solvents, liquefied gases under pressure and / or solid carriers, optionally with the 'use of surfactants, that is emulsifiers and /or
  • organic solvents can, for example, also be used as auxiliary solvents.
  • the following are essentially suitable as liquid solvents: alcohols, such as butanol or glycol, and their ethers and esters, ketones, such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents, such as dimethylformamide, N-methyl-pyrrolidone or dimethyl sulfoxide, and water ;
  • Liquefied gaseous stretching agents or carriers mean liquids which are gaseous at normal temperature and under normal pressure, for example aerosol propellants, such as halogenated hydrocarbons and butane, propane, nitrogen and carbon dioxide;
  • Solid carrier materials are suitable: for example natural rock powders such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth and synthetic rock powders such as highly
  • Adhesives and thickeners such as carboxymethyl cellulose, methyl cellulose, natural and synthetic, powdery, granular or latex-shaped polymers, such as rubber arabic, polyvinyl alcohol, polyvinyl acetate, and natural phospholipids, such as cephalins and lecithins and synthetic phospholipids, can be used in the formulations.
  • Other additives can be mineral and vegetable oils.
  • the present invention furthermore relates to microbicidal compositions based on the mixtures according to the invention, comprising at least one solvent or diluent and, if appropriate, processing aids and, if appropriate, further antimicrobially active substances.
  • microbicidal agents or formulated concentrates used to protect technical materials contain the active ingredients p-chloro-m-cresol (CMK) and / or its sodium or potassium salt and 2-memyl-2H ⁇ isothiazol-3-one (MIT) as the sum of both active ingredients, in a concentration of 5 to 80% by weight, preferably 10 to 60% by weight.
  • CK p-chloro-m-cresol
  • MIT 2-memyl-2H ⁇ isothiazol-3-one
  • the application concentrations of the active compound combinations to be used according to the invention depend on the type and the occurrence of the microorganisms to be controlled, the microbial initial load, the expected storage time of the products to be protected and on the composition of the microbiologically susceptible end products. The optimum amount can be used through preliminary tests and test series on a laboratory scale and through additional operational tests be determined. In general, the application concentrations are in the range from 0.01 to 5% by weight, preferably from 0.05 to 1.0% by weight, of the mixture according to the invention, based on the material to be protected.
  • the mixtures according to the invention are distinguished by synergistic effects, i.e. the effectiveness of the mixture is better than would be derived from the effectiveness of the individual components.
  • the found synergism of the mixtures according to the invention can be determined using the following mathematical approach (cf. F.C. Kuli, P.C. Elisman, H.D. Sylwestrowicz and P.K. Mayer, Appl. Microbiol. 9, 538 (1961):
  • Q a amount of component A in the active compound mixture which achieves the desired effect, ie no microbial growth
  • Qb amount of component B in the active ingredient mixture, which suppresses the growth of the microorganisms.
  • Q ⁇ amount of component B, used alone, suppresses the growth of the microorganisms.
  • Active ingredient mixture a synergistic effect.
  • the following calculations explain the synergistic effect enhancement.
  • Rhodotorula rubra Rhodotorula rubra
  • the bacteria were added separately from the yeasts / molds.
  • CMK 0.1% and 0.01% MIT
  • CMK / MIT 10 weeks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne des mélanges antimicrobiens à effet synergique, constitués de p-chloro-m-crésol ou de son sel de sodium ou de potassium, ainsi que de 2-méthyl-2H-isothiazol-3-one.
EP04727268A 2003-04-23 2004-04-14 Agents microbicides Withdrawn EP1622454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10318366A DE10318366A1 (de) 2003-04-23 2003-04-23 Mikrobizide Mittel
PCT/EP2004/003911 WO2004093543A1 (fr) 2003-04-23 2004-04-14 Agents microbicides

Publications (1)

Publication Number Publication Date
EP1622454A1 true EP1622454A1 (fr) 2006-02-08

Family

ID=33304887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04727268A Withdrawn EP1622454A1 (fr) 2003-04-23 2004-04-14 Agents microbicides

Country Status (5)

Country Link
US (1) US20060205716A1 (fr)
EP (1) EP1622454A1 (fr)
JP (1) JP2006524198A (fr)
DE (1) DE10318366A1 (fr)
WO (1) WO2004093543A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008136917A1 (fr) * 2007-05-04 2008-11-13 Troy Technology Corporation, Inc. Concentrés de substances antimicrobiennes actives dispersées dans l'eau
US7652048B2 (en) * 2007-05-04 2010-01-26 Troy Corporation Water-based, antimicrobially active, dispersion concentrates
CN115108888B (zh) * 2022-07-05 2024-05-17 山东奥友化学有限责任公司 一种4-氯-3-甲基苯酚生产中副产物的分离纯化方法以及含有副产物的防霉抗菌液

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046265A1 (de) * 2000-09-19 2002-03-28 Bayer Ag Wirkstoffkombination zum Schutz von tierischen Häuten
JP2002338412A (ja) * 2001-05-16 2002-11-27 Tokyo Fine Chem Kk 工業用殺菌剤組成物および殺菌方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004093543A1 *

Also Published As

Publication number Publication date
DE10318366A1 (de) 2004-12-02
JP2006524198A (ja) 2006-10-26
WO2004093543A1 (fr) 2004-11-04
US20060205716A1 (en) 2006-09-14

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