EP1183281A1 - Procede de preparation de surfaces polymeres a action microbicide inherente - Google Patents

Procede de preparation de surfaces polymeres a action microbicide inherente

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Publication number
EP1183281A1
EP1183281A1 EP00920629A EP00920629A EP1183281A1 EP 1183281 A1 EP1183281 A1 EP 1183281A1 EP 00920629 A EP00920629 A EP 00920629A EP 00920629 A EP00920629 A EP 00920629A EP 1183281 A1 EP1183281 A1 EP 1183281A1
Authority
EP
European Patent Office
Prior art keywords
film
radiation
antimicrobial
substrate
minutes
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Withdrawn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
EP00920629A
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German (de)
English (en)
Inventor
Peter Ottersbach
Friedrich Sosna
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.)
Creavis Gesellschaft fuer Technologie und Innovation mbH
Original Assignee
Creavis Gesellschaft fuer Technologie und Innovation mbH
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Filing date
Publication date
Application filed by Creavis Gesellschaft fuer Technologie und Innovation mbH filed Critical Creavis Gesellschaft fuer Technologie und Innovation mbH
Publication of EP1183281A1 publication Critical patent/EP1183281A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/16—Chemical modification with polymerisable compounds
    • C08J7/18—Chemical modification with polymerisable compounds using wave energy or particle radiation
    • 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
    • A01N25/08—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 solids as carriers or diluents
    • A01N25/10—Macromolecular compounds
    • 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
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/02—Amines; Quaternary ammonium compounds
    • A01N33/12—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/54—Biologically active materials, e.g. therapeutic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/04—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonamides, polyesteramides or polyimides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/204—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with nitrogen-containing functional groups, e.g. aminoxides, nitriles, guanidines
    • A61L2300/208—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents

Definitions

  • the invention relates to a process for the preparation of antimicrobial polymers by polymerizing amino-functionalized monomers and the use of the antimicrobial polymers thus produced.
  • the invention relates to a process for the preparation of antimicrobial polymers by graft polymerization of amino-functionalized monomers on a substrate and the use of the antimicrobial substrates thus produced.
  • Mucus layers often form, which cause microbial populations to rise extremely, which have a lasting impact on the quality of water, beverages and food, and can even lead to product spoilage and consumer health damage.
  • Bacteria must be kept away from all areas of life where hygiene is important. This affects textiles for direct body contact, especially for the genital area and for nursing and elderly care. In addition, bacteria must be kept away from furniture and device surfaces in care stations, in particular in the area of intensive care and the care of small children, in hospitals, in particular in rooms for medical interventions and in isolation stations for critical infections and in toilets.
  • Tert-butylaminoethyl methacrylate is a commercially available monomer of methacrylate chemistry and is used in particular as a hydrophilic component in copolymerizations.
  • EP-PS 0 290 676 describes the use of various polyacrylates and polymethacrylates as a matrix for the immobilization of bactericidal quaternary ammonium compounds
  • US Pat. No. 4,532,269 discloses a terpolymer of butyl methacrylate, tributyltin methacrylate and tert-butylaminoethyl methacrylate. This polymer is used as an antimicrobial coating for ships, the hydrophilic tert-butylaminoethyl methacrylate demanding the slow erosion of the polymer and thus the highly toxic tributyltin methacrylate active ingredient releases
  • the copolymer made with aminomethacrylates is only a matrix or carrier for added microbicidal agents that can diffuse or migrate from the carrier.
  • Polymers of this type lose their effect more or less quickly if the necessary "minimal inhibitory concentration" () MIK) is no longer achieved
  • the present invention is therefore based on the object of developing novel, antimicrobial polymers which, if necessary, are intended as a coating to prevent the settling and spreading of bacteria on surfaces
  • the present invention relates to a process for the preparation of antimicrobial polymers, characterized in that aliphatic unsaturated monomers which are functionalized at least once by a quaternary amino group are polymerized
  • Suitable monomer units are all aliphatic unsaturated monomers which have at least one quaternary amino function, such as, for example, 3-methacryloylaminopropyltrimethylammonium chloride, 2-methacryloyloxyethyltrimethylammonium chloride, 2-methacryloyloxyethyltrimethylammoniummethosulfate, 3-acrylamidopropyltrimethylzimethylchloride ammonium chloride, 2-acryloyloxyethyl-4-benzoylbenzyl-dimethylammonium bromide, 2-acryloyloxyethyl-trimethylammonium methosulfate, N, N, N-trimethylammonium ethenobromide, 2-hydroxy-N, N, N-trimethyl-3 - [(2-methyl- l-oxo-2-propenyl) oxy] -ammonium propane chloride, N, N, N-trimethyl-2 - [(1-oxo-2
  • the aliphatic unsaturated monomers functionalized at least once by a quaternary amino group in the process according to the invention can have a hydrocarbon radical of up to 50, preferably up to 30, particularly preferably up to 22 carbon atoms.
  • the substituents of the amino group can have aliphatic or vinyl hydrocarbon radicals such as methyl, ethyl -, Propyl or acrylic radicals or cyclic hydrocarbon radicals, such as substituted or unsubstituted phenyl or cyclohexyl radicals having up to 25 carbon atoms.
  • the amino group can also be substituted by keto or aldehyde groups such as acryloyl or oxo groups.
  • halides such as quaternary ammonium ions can be substituted Chlorides, bromides or fluorides, the salts of mineral acids such as nitrides or sulfates and methyl sulfate are used
  • the monomers used in the process according to the invention should have a molar mass below 900, preferably below 550 g / mol
  • aliphatic unsaturated monomers of the general formula which are functionalized simply by a quaternary amino group are functionalized simply by a quaternary amino group
  • Ri branched, unbranched or cyclic, saturated or unsaturated hydrocarbon radical with up to 50 C atoms, which can be substituted by O, N or S atoms
  • R 2 , R 3 , K branched, unbranched or cyclic, saturated or unsaturated hydrocarbon radical with up to 25 C atoms, which can be substituted by O, N or S atoms
  • the process according to the invention can also be carried out by polymerizing the monomers functionalized at least once by a quaternary amino group on a substrate. A physisorbed coating of the antimicrobial copolymer is obtained on the substrate
  • All polymeric plastics such as polyurethanes, polyamides, polyesters and ethers, polyether block amides, polystyrene, polyvinyl chloride, polycarbonates, polyorganosiloxanes, polyolefins, polysulfones, polyisoprene, polychloroprene, polytetrafluoroethylene (PTFE), are suitable as substrate materials Copolymers and blends as well as natural and synthetic rubbers, with or without radiation-sensitive groups
  • the method according to the invention can also be applied to surfaces of lacquered or otherwise plastic, metal, glass or wood bodies
  • the antimicrobial polymers can be obtained by graft polymerization of a substrate with an aliphatic unsaturated monomer functionalized at least simply by a quaternary amino group.
  • the grafting of the substrate enables the antimicrobial polymer to be covalently bound to the substrate how the plastics already mentioned are used
  • the surfaces of the substrates can be activated before the graft copolymerization using a number of methods. All standard methods for activating polymeric surfaces can be used here.
  • the activation of the substrate before the graft polymerization is carried out by UV radiation, plasma treatment, corona treatment, flame treatment, ozonization, electrical discharge of ⁇ -radiation, methods used
  • the surfaces are expediently freed of oils, fats or other contaminants beforehand in a known manner by means of a solvent
  • the substrates can be activated by UV radiation in the wavelength range 170-400 nm, preferably 170-250 nm.
  • a suitable radiation source is, for example, a UV excimer device HERAEUS Noblelight, Hanau, Germany.
  • mercury vapor lamps are also suitable for substrate activation if they are emit significant amounts of radiation in the areas mentioned
  • the exposure time is generally 0 1 seconds to 20 minutes, preferably 1 second to 10 minutes
  • the activation of the standard polymers with UV radiation can also be carried out with an additional photosensitizer.
  • the photosensitizer such as benzophenone
  • the activation can also be achieved by plasma treatment using an RF or microwave plasma (Hexagon, Fa Technics Plasma, 85551 Kirchheim, Germany) in air, nitrogen or argon atmosphere.
  • the exposure times are generally 2 seconds to 30 minutes, preferably 5 seconds up to 10 minutes
  • the energy input for laboratory devices is between 100 and 500 W, preferably between 200 and 300 W.
  • Corona devices SOFTAL, Hamburg, Germany
  • the exposure times in this case are generally 1 to 10 minutes, preferably 1 to 60 seconds
  • Activation by electrical discharge, electron or ⁇ -rays (e.g. from a cobalt 60 source) and ozonization enable short exposure times, which are generally 0 1 to 60 seconds
  • Flaming substrate surfaces also leads to their activation.
  • Suitable devices in particular those with a barrier flame front, can be easily built or, for example, obtained from ARCOTEC, 71297 Monsheim, Germany. They can be operated with hydrocarbons or hydrogen as fuel gas In any case, damaging overheating of the substrate must be avoided, which is easily achieved by intimate contact with a cooled metal surface on the surface of the substrate facing away from the flame side.
  • Activation by flame is accordingly limited to relatively thin, flat substrates.
  • the exposure times generally amount to 0 1 second to 1 minute, preferably 0 5 to 2 seconds, all of which are non-luminous flames and the distances between the substrate surfaces and the outer flame front are 0 2 to 5 cm, preferably 0 5 to 2 cm
  • the substrate surfaces activated in this way are coated using known methods, such as dipping, spraying or brushing, with aliphatic unsaturated monomers which are at least simply functionalized by a quaternary amino group, if appropriate in solution.
  • Water and water / ethanol mixtures have retained as solvents, however are also other solvents can be used, provided they have sufficient bulk for the monomers and wet the substrate surfaces well.
  • Other solvents are, for example, ethanol, methanol, methyl ethyl ketone, diethyl ether, dioxane, hexane, heptane, benzene, toluene, chloroform, dichloromethane, tetrahydrofuran and acetonitrile solutions with monomer-containing substances from 1 to 10% by weight, for example with about 5% by weight, have been found to be effective in practice and generally give coherent coatings covering the substrate surface with layer thicknesses which can be more than 0.1 ⁇ m in one pass Monomers
  • Mercury vapor lamps are also suitable here, provided they emit considerable amounts of radiation in the areas mentioned.
  • the exposure times are generally 10 seconds to 30 minutes, preferably 2 to 15 minutes
  • graft copolymerization can also be achieved by a process which is described in European patent application 0 872 512 and is based on a graft polymerization of swollen monomer and initiator molecules
  • aliphatically unsaturated monomers can be used, in addition to the monomers functionalized by a quaternary amino group.
  • an aliphatic unsaturated monomer functionalized at least once by a quaternary amine group with acrylates or methacrylates for example acrylic acid, tert-butyl methacrylate or methyl methacrylate, can be used as the monomer mixture.
  • Styrene, vinyl chloride, vinyl ether, acrylamides, acrylonitriles, olefins (ethylene, propylene, butylene, isobutylene), allyl compounds, vinyl ketones, vinyl acetic acid, vinyl acetate or vinyl esters can be used
  • the antimicrobial polymers made from aliphatic unsaturated monomers, which are functionalized at least simply by a quaternary amino group, produced by the process according to the invention show a microbicidal or antimicrobial behavior even without grafting onto a substrate surface If the process according to the invention is used directly on the substrate surface without grafting, customary free-radical initiators can be added.
  • the initiators are azonitriles, alkyl peroxides, hydroperoxides, acyl peroxides, peroxoketones, peresters, peroxocarbonates, peroxodisulfate, persulfate and all customary photoinitiators such as, for example, ⁇ -acetophenone -Using hydroxy ketones, dimethyl ketals and benzophenone.
  • the polymerization can also be initiated thermally or, as already stated, by electromagnetic radiation, such as UV light or ⁇ radiation
  • the present invention further relates to the use of the antimicrobial polymers produced according to the invention for the production of antimicrobially active products and the products thus produced as such.
  • the products can contain or consist of modified polymer substrates according to the invention.
  • modified polymer substrates according to the invention are preferably based on polyamides, polyurethanes, Polyether block amides, polyester amides or imides, PVC, polyolefins, silicones, polysiloxanes, polymethacrylate or polyterephthalates, which have surfaces modified with the polymers produced according to the invention
  • Antimicrobial products of this type are, for example, and in particular machine parts for food processing, components of air conditioning systems, roofing, bathroom and toilet articles, cake articles, components of sanitary facilities, components of animal cages and dwellings, toys, components in water systems, food packaging, operating elements (touch panel ) of devices and contact lenses
  • the present invention also relates to the use of the polymer substrates modified on the surface with the antimicrobial polymers produced according to the invention for the production of hygiene products or medical articles.
  • hygiene products are, for example, toothbrushes, toilet seats, combs and packaging materials also other objects that may come into contact with many people, such as telephone listeners, Handrails of stairs, door and window handles as well as holding straps and handles in public transport.
  • Medical technology articles are eg catheters, tubes, cover foils or surgical cutlery
  • Graft polymers can be used wherever bacteria-free, ie microbicidal surfaces or surfaces with non-stick properties are important
  • microbicidal polymers produced by the process according to the invention are, in particular, lacquers, protective coatings or coatings in the following
  • Machine parts air conditioning systems ion exchangers, process water, solar systems,
  • example 1 A polyamide 12 film is exposed for 2 minutes at a pressure of 1 mbar to 172 nm radiation from an excimer radiation source from Heraeus.
  • the film activated in this way is placed in an irradiation reactor under protective gas and fixed thereupon the film is countercurrently flowed with 20 ml of a mixture of 3 g of 2-methacryloyloxyethyltrimethylammonium chloride (Aldrich), 57 g of demineralized water and 40 g of methanol are coated.
  • the radiation chamber is closed and placed at a distance of 10 cm under an excimer radiation unit from Heraeus, which has an emission of the wavelength 308 nm.
  • the radiation is started, the exposure time is 15 minutes.
  • the film is then removed and rinsed with a mixture of 15 ml of methanol and 15 ml of demineralized water.
  • the film is then dried in vacuo for 12 hours at 50 ° C.
  • the film is then 5 times 6 hours in water Extracted 30 ° C, then dried at 50 ° C for 12 hours
  • a coated piece of film from Example 1 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Staphylococcus aureus and shaken. After a contact time of 30 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test batch is determined dropped from 10 7 to 10 3
  • a coated piece of film from Example 1 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Pseudomonas aeruginosa and shaken. After a contact time of 60 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test mixture is determined dropped from 10 7 to 10 4
  • Example 2 A polyamide 12 film is exposed for 2 minutes at a pressure of 1 mbar to 172 nm radiation from an excimer radiation source from Heraeus.
  • the film activated in this way is placed in an irradiation reactor under protective gas and fixed thereupon the film is exposed to 20 ml of a mixture in a protective gas countercurrent 3 g of 2-methacryloyloxyethyltrimethylammonium methosulfate (from Aldrich), 57 g of demineralized water and 40 g of methanol are coated.
  • the radiation chamber is closed and placed at a distance of 10 cm under an excimer radiation unit from Heraeus, which has an emission of the wavelength 308 nm.
  • the radiation is started, the exposure time is 15 minutes.
  • the film is then removed and rinsed with a mixture of 15 ml of methanol and 15 ml of demineralized water.
  • the film is then dried in vacuo at 50 ° C. for 12 hours.
  • the film is then 5 times 6 hours in water extracted at 30 ° C, then dried at 50 ° C for 12 hours net
  • a coated piece of film from Example 2 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Staphylococcus aureus and shaken. After a contact time of 15 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test batch is determined more detectable from Staphylococcus aureus
  • a coated piece of film from Example 2 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Pseudomonas aeruginosa and shaken. After a contact time of 60 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test batch is determined dropped from 10 7 to 10 2
  • a polyamide 12 film is exposed to the 172 nm radiation of an excimer radiation source from Heraeus for 2 minutes at a pressure of 1 mbar.
  • the film activated in this way is placed under The protective gas is placed in a radiation reactor and fixed.
  • the film is then coated in a protective gas countercurrent with 20 ml of a mixture of 3 g of 3-acrylamidopropyltrimethylammonium chloride (Aldrich), 57 g of demineralized water and 40 g of methanol.
  • Aldrich 3-acrylamidopropyltrimethylammonium chloride
  • the radiation chamber is closed and at a distance of 10 cm placed under an excimer radiation unit from Heraeus, which has an emission of the wavelength 308 nm.
  • the radiation is started, the exposure time is 15 minutes.
  • the film is then removed and rinsed with a mixture of 15 ml of methanol and 15 ml of demineralized water.
  • the film is then 12 Hours dried at 50 ° C under vacuum Then the film is extracted 5 times 6 hours in water at 30 ° C, then dried at 50 ° C for 12 hours
  • Example 3a A coated piece of film from example 3 (5 ⁇ 4 cm) is placed in 30 ml of a test germ suspension of Staphylococcus aureus and shaken. After a contact time of 15 minutes, 1 ml of the test germ suspension is removed, and the number of germs in the test mixture is determined Staphylococcus aureus germs no longer detectable
  • a coated piece of film from Example 3 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Pseudomonas aeruginosa and shaken. After a contact time of 60 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test mixture is determined dropped from 10 7 to 10 3
  • Example 4 A polyamide 12 film is exposed to the 172 nm radiation of an excimer radiation source from Heraeus for 2 minutes at a pressure of 1 mbar.
  • the film activated in this way is placed in an irradiation reactor under protective gas and fixed thereupon Shielding gas countercurrent with 20 ml of a mixture of 3 g of 2-methacryloyloxyethyltrimethylammonium chloride (Aldrich), 2 g of methyl methacrylate (Aldrich) and 95 g of methanol.
  • Aldrich 2-methacryloyloxyethyltrimethylammonium chloride
  • Aldrich 2-methacryloyloxyethyltrimethylammonium chloride
  • Aldrich methyl methacrylate
  • the radiation chamber is closed and placed 10 cm below an excimer radiation unit from Heraeus, which has an emission of the wavelength 308 nm.
  • the irradiation is started, the exposure time is 15 minutes.
  • the film is then removed and rinsed with 30 ml of methanol.
  • the film is then dried in vacuo for 12 hours at 50 ° C.
  • the film is then 5 times 6 in water Extracted for hours at 30 ° C, then dried at 50 ° C for 12 hours.
  • the back of the film is then treated in the same way, so that a polyamide film coated with grafted polymer on both sides is finally obtained
  • a coated piece of film from example 4 (5 ⁇ 4 cm) is placed in 30 ml of a test germ suspension of Staphylococcus aureus and shaken. After a contact time of 15 minutes, 1 ml of the test germ suspension is removed, and the number of germs in the test mixture is determined. After this time there are no germs more detectable from Staphylococcus aureus
  • Example 4b A coated piece of film from example 4 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Pseudomonas aeruginosa and shaken. After a contact time of 60 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test batch is determined the bacterial count dropped from 10 7 to 10 3
  • a polyamide 12 film is exposed for 2 minutes at a pressure of 1 mbar to 172 nm radiation from an excimer radiation source from Heraeus.
  • the film activated in this way is placed in an irradiation reactor under protective gas and fixed thereupon the film is exposed to 20 ml of a mixture in a protective gas countercurrent 3 g of 2-methacryloyloxyethyltrimethylammonium methosulfate (from Aldrich), 2 g of methyl methacrylate (from Aldrich) and 95 g of methanol
  • the radiation chamber is closed and placed at a distance of 10 cm under an excimer radiation unit from Heraeus, which has an emission of 308 nm.
  • the radiation is started, the exposure time is 15 minutes.
  • the film is then removed and rinsed with 30 ml of methanol.
  • the film is then dried in vacuo for 12 hours at 50 ° C.
  • the film is extracted 5 times 6 hours in water at 30 ° C., then dried at 50 ° C. for 12 hours.
  • the back of the film is then treated in the same way so that finally a polyamide film coated with grafted polymer on both sides
  • a coated piece of film from Example 5 (5 ⁇ 4 cm) is placed in 30 ml of a test microbial suspension of Staphylococcus aureus and shaken. After a contact time of 15 minutes, 1 ml of the test microbial suspension is removed, and the number of bacteria in the test batch is determined more detectable from Staphylococcus aureus
  • a coated piece of film from Example 5 (5 ⁇ 4 cm) is placed in 30 ml of a test germ suspension from Pseudomonas aeruginosa and shaken. After a contact time of 60 minutes, 1 ml of the test germ suspension is removed, and the number of bacteria in the test mixture is determined dropped from 10 7 to 10 3

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Abstract

L'invention concerne un procédé permettant de préparer des polymères antimicrobiens par polymérisation de monomères insaturés de manière aliphatique, fonctionnalisés au moins de manière simple par un groupe amino quaternaire. Les polymères antimicrobiens obtenus selon l'invention s'utilisent comme peintures, enduits protecteurs ou revêtements microbicides, par ex. sur des articles d'hygiène ou dans le domaine médical.
EP00920629A 1999-05-12 2000-03-30 Procede de preparation de surfaces polymeres a action microbicide inherente Withdrawn EP1183281A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19921904 1999-05-12
DE19921904A DE19921904A1 (de) 1999-05-12 1999-05-12 Verfahren zur Herstellung inhärent mikrobizider Polymeroberflächen
PCT/EP2000/002813 WO2000069926A1 (fr) 1999-05-12 2000-03-30 Procede de preparation de surfaces polymeres a action microbicide inherente

Publications (1)

Publication Number Publication Date
EP1183281A1 true EP1183281A1 (fr) 2002-03-06

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EP00920629A Withdrawn EP1183281A1 (fr) 1999-05-12 2000-03-30 Procede de preparation de surfaces polymeres a action microbicide inherente

Country Status (4)

Country Link
EP (1) EP1183281A1 (fr)
AU (1) AU4520400A (fr)
DE (1) DE19921904A1 (fr)
WO (1) WO2000069926A1 (fr)

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DE10131371A1 (de) * 2001-06-28 2003-01-16 Clariant Gmbh Verwendung von quaternierten (Meth)Acrylsäuredialkylaminoalkylestern als Soil Release Polymere für harte Oberflächen, sowie ein Verfahen zu deren Herstellung
DE10062201A1 (de) * 2000-12-13 2002-06-20 Creavis Tech & Innovation Gmbh Verfahren zum Einsatz antimikrobieller Polymere im Bauten- und Denkmalschutz
DE10110885A1 (de) * 2001-03-07 2002-09-12 Creavis Tech & Innovation Gmbh Mokrobizide Trennsysteme
DE10117106A1 (de) * 2001-04-06 2002-10-17 Creavis Tech & Innovation Gmbh Antimikrobielle Konservierungssysteme für Lebensmittel
DE10123000B4 (de) * 2001-05-11 2007-10-18 Basf Ag Verfahren zur Herstellung eines Verbundbauteils, danach hergestellte Verbundbauteile und Produktionsanlage zur Herstellung dieser Verbundbauteile
DE10123195A1 (de) * 2001-05-12 2002-11-14 Creavis Tech & Innovation Gmbh Elutionsfreie antimikrobielle Polymere
US7005031B2 (en) 2002-01-16 2006-02-28 3M Innovative Properties Company Pressure sensitive adhesives having quaternary ammonium functionality, articles, and methods
US6746711B2 (en) 2002-01-29 2004-06-08 Clariant Gmbh Polymers with biocidal action, process for their preparation and their use
DE10203342A1 (de) * 2002-01-29 2003-08-07 Clariant Gmbh Polymere mit biozider Wirkung, Verfahren zu ihrer Herstellung und ihre Verwendung
PL211454B1 (pl) 2002-08-09 2012-05-31 Akzo Nobel Coatings Int Bv Polimer nierozpuszczalny w wodzie morskiej, sposób wytwarzania takiego polimeru oraz przeciwporostowa kompozycja powłokowa
WO2005084436A1 (fr) * 2004-02-05 2005-09-15 Quick-Med Technologies, Inc. Silicates et autres oxydes lies a des polymeres antimicrobiens
EP1849450B1 (fr) 2006-04-28 2009-11-25 Ivoclar Vivadent AG Composition dentaire à base d'un macro-monomère antibactérien et polymérisable radicalairement
DE102006038809A1 (de) 2006-08-18 2008-02-21 Basf Construction Polymers Gmbh Wasserlösliche und biologisch abbaubare Copolymere auf Polyamidbasis und deren Verwendung
WO2013110530A1 (fr) * 2012-01-27 2013-08-01 Basf Se Revêtements antimicrobiens durcissables par rayonnement
WO2013110504A1 (fr) 2012-01-27 2013-08-01 Basf Se Revêtements antimicrobiens durcissables sous l'action d'un rayonnement
US8728455B2 (en) 2012-01-27 2014-05-20 Basf Se Radiation-curable antimicrobial coatings
WO2013110566A1 (fr) 2012-01-27 2013-08-01 Basf Se Matière de revêtement antimicrobienne durcissable par rayonnement

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FR2757866B1 (fr) * 1996-12-30 2004-12-17 Catalyse Polymeres comportant des groupes ammoniums quaternaires, leur utilisation pour la fabrication d'un materiau a propretes antibacteriennes et leurs procedes de preparation
DE19709076A1 (de) * 1997-03-06 1998-09-10 Huels Chemische Werke Ag Verfahren zur Herstellung antimikrobieller Kunststoffe
DK0872512T3 (da) * 1997-04-14 2001-08-27 Degussa Fremgangsmåde til modificering af overfladen af polymersubstrater ved podningspolymerisation

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Also Published As

Publication number Publication date
WO2000069926A1 (fr) 2000-11-23
DE19921904A1 (de) 2000-11-16
AU4520400A (en) 2000-12-05

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