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
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/26—Phosphorus; Compounds thereof
• • 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
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/10—Fluorides
• • 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
  • A01N25/12—Powders or granules
• • 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
  • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• • 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
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/16—Heavy metals; Compounds thereof

Definitions

• the invention relates to an antimicrobially finished material consisting of a matrix material in which inorganic phosphate salts are finely dispersed, dispersed or dissolved, which impart antimicrobial properties to the material.
• the invention furthermore relates to the use of inorganic phosphate salts for producing antimicrobially finished materials according to the invention and to the use of the material according to the invention for the production of packaging materials for commercial products, preferably packaging materials for foods, cosmetics, pharmaceuticals or medical devices, or for the production of medical devices or plastic tubes.
• the silver is not always completely harmless to the human organism.
• the reason for this is the persistence of silver, ie the accumulation in the human body, which in extreme cases can lead to agryrie or even to agryrosis.
• copper and copper salts act bacteriostatically.
• the US Environmental Protection Agency (EPA) has confirmed the antimicrobial efficacy of copper surfaces. The tests prescribed by the EPA showed that 99.9% of the bacteria on copper alloy surfaces were eliminated within an exposure time of two hours. For example, reference is made to EP-A-2 012 590.
• the use of copper metal is only limited or not possible in many systems because of its red color and its conductivity.
• EP-A-1 978 138 describes the use of copper oxide and states that the antimicrobial action originates from the copper ions. Disadvantages here include the dark color of the copper oxide and the poor compatibility in systems with alkali intolerance.
• the object of the present invention was to provide a material antimicrobial while achieving an improved antimicrobial effect over the prior art and at the same time to overcome the disadvantages of known antimicrobial equipment with regard to harmfulness, degradation and / or temperature sensitivity of the antimicrobial agent.
• an antimicrobially finished material consisting of a matrix material in which inorganic phosphate salts of at least two different metal cations are finely dispersed, dispersed or dissolved, at least one of the metal cations being copper (Cu) and zinc (Zn ) is selected.
• antimicrobial properties in the context of the present invention means bacteriostatic, fungicidal or antiviral properties or a combination of several of these properties.
• a synergy effect is understood to mean that the combination of the synergists has an effect which is significantly above the effect of the individually used synergists for the same total amount or total concentration of the synergists. In other words, in order to achieve an equally good effect, a significantly lower total amount or total concentration of the combination of the synergists than the synergists used individually is needed.
• the metal phosphates may have the same or different phosphate anions.
• the inorganic phosphate salts are preferably selected from orthophosphates, diphosphates, metaphosphates, higher-condensed phosphates and mixed hydroxide-phosphate oxoanions.
• the at least two different metal cations are copper (Cu) and zinc (Zn).
• the matrix material thus contains a combination of copper phosphate and zinc phosphate. This combination has proven to be particularly effective as antimicrobial.
• At least one of the metal phosphate salts is an acidic phosphate.
• acidic zinc phosphate preferably monozinc phosphate Zn (H 2 PO 4 ) 2
• at least one further metal phosphate preferably a copper phosphate
• the at least one metal phosphate is a copper phosphate, preferably copper hydroxide phosphate Cu 2 (OH) PO 4 .
• copper hydroxide phosphate Cu 2 (OH) PO 4 is used in combination with acidic zinc phosphate, preferably monozinc phosphate Zn (H 2 PO 4 ) 2 .
• At least one or both of the metal phosphate salts are below Copper hydroxide phosphate Cu 2 (OH) PO 4 , copper phosphate Cu 3 (PO 4 ) 2 , copper II pyrophosphate Cu 2 P 2 O 7 , monozinc phosphate Zn (H 2 PO 4 ) 2 , trizine phosphate Zn 3 (PO 4 ) 2
• Zinc pyrophosphate Zn 2 P 2 O 7 selected.
• Copper ions and zinc ions show no persistent properties over silver. Copper and zinc are excreted from the body when overdosed. Both metals are essential trace elements that are needed in the body's own processes.
• the weaker antibacterial effect of copper and copper salts over silver and silver salts can surprisingly be compensated by the combination of copper phosphate with other metal phosphates, in particular zinc phosphates, but also aluminum or potassium phosphates.
• each of the metal phosphate salts is finely distributed, dispersed or dissolved in the matrix material depends on the efficiency of the metal phosphate combination, which is actually desired or required by the person skilled in the art, by simple experiments and other circumstances and may be adjusted by the person skilled in the art.
• the at least two inorganic metal phosphate salts in the matrix material are present in an amount of 0.001 to 40% by weight or 0.05 to 10% by weight or 0.5 to 5% by weight or from 1 to 3 wt .-%.
• Excessive amounts of metal phosphates increase the cost of producing the material and can undesirably adversely affect the material properties of the matrix. Too small amounts of metal phosphates could result in too little antimicrobial efficacy.
• the at least two inorganic metal phosphate salts each have an average particle size (d 50) in the region of 1 nm to 20 microns, preferably from 10 nm to 10 .mu.m, more preferably from 20 nm to 1 .mu.m, most preferably from 40 nm to 200 nm.
• any matrix material in which the metal phosphates according to the invention can be incorporated is suitable.
• the matrix material is selected from organic polymer materials, particularly preferably among thermoplastic polymers, thermoset polymers, resins and silicones.
• Polymer materials suitable according to the invention are polyvinyl butyral (PVB), polypropylene (PP), polyethylene (PE), polyamide (PA), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyester, polyphenylene oxide, polyacetal, polymethacrylate, polyoxymethylene, polyvinyl acetal, polystyrene, acrylic Butadiene-styrene (ABS), acrylonitrile-styrene-acrylic ester (ASA), polycarbonate, polyethersulfone, polyetherketone, polyvinyl chloride, thermoplastic polyurethane and / or their copolymers and / or mixtures.
• PVB polyvinyl butyral
• PP polypropylene
• PE polyethylene
• PA polyamide
• PBT polybutylene terephthalate
• PET polyethylene terephthalate
• polyester polyphenylene oxide
• polyacetal polymethacrylate
• polyoxymethylene
• the material according to the invention can be produced in any form, depending on the application. However, as germs predominantly accumulate on the surface of materials, the benefits of antimicrobial properties are particularly evident in high surface area materials.
• the material of the invention is therefore as a film, sheet or thin layer with a thickness in the range of 1 .mu.m to 20 mm or in the range of 50 .mu.m to 10 mm or in the range of 100 .mu.m to 5 mm or im Range from 200 ⁇ m to 1 mm.
• film materials are suitable, for example, as packaging materials, films for storing food, linings of vessels and rooms in which antimicrobial action is desired, such as a swimming pool film, etc.
• the invention also encompasses the use of inorganic phosphate salts of at least two different metal cations, wherein at least one of the metal cations is selected from copper (Cu) and zinc (Zn), for antimicrobial finishing of a matrix material, wherein the inorganic phosphate salts dispersedly disperse in the matrix material or dissolved are included.
• Cu copper
• Zn zinc
• the invention further includes the use of the material described above for the production of packaging materials for commercial products, preferably packaging materials for food, cosmetic products, pharmaceuticals or medical devices, or for the production of medical devices or plastic tubes.
• a further advantage of the use according to the invention of a combination of metal phosphates is that, unlike pure metals or metal oxides, they can be incorporated into virtually any matrix.
• thermoplastic materials, elastomers and thermosets, but also ceramics, silicones, cellulose derivatives, pastes and ointments, lacquers and paints and other matrices can be used as matrix materials.
• suitable matrix materials are listed below:
• polyolefins such as polyethylene, polypropylene, polybutylene, polymethylpentene, as well as block, graft and copolymers thereof;
• ⁇ styrene polymers such as standard polystyrene, impact polystyrene, styrene acrylonitrile, acrylonitrile-butadiene-styrene, acrylonitrile styrene, acrylic rubber;
• Halogen-containing vinyl polymers such as polyvinyl chloride, polyvinylidene chloride, polyvinyl fluoride, tetrafluoromethylene-hexafluoromethylene copolymer, ethylene-tetrafluoroethylene copolymer, polychlorotrifluoroethylene, ethylene-chlorotrifluoroethylene copolymer;
• acrylic polymers such as polyacrylate, polymethacrylate
• ⁇ polyacetals such as polyoxymethylene
• Linear polycondensates such as polyamides (PA-6, PA-66, PA-610, PA-612, PA-1 1, PA-12, etc.), polycarbonates, polyesters (eg polyethylene terephthalate, polybutylene terephthalate, etc.), polyimides , Polyaryl ketones, polysulfones, polyurethanes, polyphenylenes;
• polymers of unsaturated alcohols and amines or acyl derivatives or acetals thereof such as polyvinyl alcohol, polyvinyl acetates, polyvinyl butyral, polyvinyl benzoate;
• Crosslinked polycondensates such as phenolic resins, aminoplasts, epoxy resins, unsaturated polyesters, polyurethane; ⁇ modified natural products, such as cellulose esters;
• fillers yaw aids in the presence of additives such as processing aids, stabilizers, antioxidants, colorants, dispersants, etc.
• the QualiScreen test is a standardized, validated and certified test procedure covering a variety of materials, including polymers, fibers, ceramics, metals, paints, coatings, etc., and various forms of materials, such as flat, cylindrical, spherical surfaces, and different surfaces as rough, smooth, hydrophilic, hydrophobic, etc., is suitable. Unfortunately, up to 20 samples are simultaneously assayed in quadruple for their antimicrobial properties in the test.
• a net time of 2 hours equals 2 log levels, a net time of 5 hours equals 3 log levels, a net time of 8 hours equals 4 log levels, and so on.
• the distance between two log levels is therefore equal to 3 Hours, assuming that under test conditions a bacterial population increases about tenfold within 3 hours.
• Staphylococcus epidermidis (DSM 18857) was used as the test seed in the QualiScreen test. Investigation of the antimicrobial effect of various metal phosphate additives
• the test results show the effect of copper and / or zinc phosphates on the antimicrobial properties of a polymer material.
• the antimicrobial effect of the copper and zinc phosphates alone is already exceeded by the effect of the silver phosphate used for comparison at much lower concentration of the silver phosphate.
• the results further show a synergistic effect of the combination of the copper and zinc phosphates over the respective effects of the individual phosphates at the same total concentration (5 wt .-%).

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• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• Zoology (AREA)
• Plant Pathology (AREA)
• Environmental Sciences (AREA)
• Engineering & Computer Science (AREA)
• Agronomy & Crop Science (AREA)
• Wood Science & Technology (AREA)
• Pest Control & Pesticides (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Toxicology (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

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• 2009
  • 2009-05-28 DE DE102009026539A patent/DE102009026539A1/de not_active Withdrawn
• 2010
  • 2010-05-21 KR KR1020117030942A patent/KR20120030454A/ko not_active Application Discontinuation
  • 2010-05-21 RU RU2011153009/12A patent/RU2530418C2/ru not_active IP Right Cessation
  • 2010-05-21 CN CN2010800238325A patent/CN102448292A/zh active Pending
  • 2010-05-21 EP EP10726015A patent/EP2434875A2/de not_active Ceased
  • 2010-05-21 WO PCT/EP2010/057064 patent/WO2010136407A2/de active Application Filing
  • 2010-05-21 US US13/322,791 patent/US20120088860A1/en not_active Abandoned
  • 2010-05-28 TW TW099117218A patent/TW201112957A/zh unknown

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