WO2013090540A1 - Composition biocide, dispositif et procédé de distribution d'une composition biocide - Google Patents

Composition biocide, dispositif et procédé de distribution d'une composition biocide Download PDF

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Publication number
WO2013090540A1
WO2013090540A1 PCT/US2012/069451 US2012069451W WO2013090540A1 WO 2013090540 A1 WO2013090540 A1 WO 2013090540A1 US 2012069451 W US2012069451 W US 2012069451W WO 2013090540 A1 WO2013090540 A1 WO 2013090540A1
Authority
WO
WIPO (PCT)
Prior art keywords
biocide
droplets
agent
activated water
nozzle
Prior art date
Application number
PCT/US2012/069451
Other languages
English (en)
Inventor
James Alan Aamodt
George KARGIANIS
Original Assignee
Crystal Enterprises Incorporated
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 Crystal Enterprises Incorporated filed Critical Crystal Enterprises Incorporated
Publication of WO2013090540A1 publication Critical patent/WO2013090540A1/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
    • 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
    • A01N25/02—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 liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • A01N25/06—Aerosols
    • 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
    • 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
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20—Targets to be treated
    • A61L2202/25—Rooms in buildings, passenger compartments
    • 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
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • A61L2209/211—Use of hydrogen peroxide, liquid and vaporous
    • 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
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • A61L2209/213—Use of electrochemically treated water, e.g. electrolysed water or water treated by electrical discharge

Definitions

  • the present disclosure generally relates to the field of biocide compositions and devices and methods for dispensing biocide compositions, for example, antimicrobial agents.
  • Conventional devices for dispensing antimicrobial biocides include spray bottles that dispense large droplets of antimicrobial solutions onto surfaces and require the user to spread the antimicrobial by wiping it over the surface.
  • Another conventional technique for sterilizing, disinfecting or otherwise sanitizing surfaces in rooms ⁇ e.g., floors, walls, counters, table tops) includes mopping the surfaces with a disinfectant solution.
  • Effective disinfection generally requires contact of an antimicrobial composition with the microbes on the contaminated surfaces. It is not unusual when dispensing an antimicrobial from a spray bottle and spreading it with a towel or other device that incomplete sanitization results because some portion of surfaces, e.g., corners where surfaces come together or small cracks or crevices in the surface, where microbes are present do not come in contact with the antimicrobial composition. In other situations, such as where disinfection of all surfaces in a room, such as a hotel bathroom is desired, applying
  • a device of the type described in the previous paragraph includes an electrostatic charging assembly that is capable of imparting an electrostatic charge to the dry fog biocide agent.
  • An example of an electrostatic charging assembly is a microelectrode located adjacent a nozzle of the dispensing device. The microelectrode electrically communicates with a battery which is carried on the container. In some embodiments, an insulating layer is provided on the container to electrically insulate the battery and electrically conductive lines needed to connect the microelectrode to the battery from the container.
  • Examples of a biocide include insecticides and antimicrobial agents. Insecticides may be natural insecticides, for example extracts from plants.
  • electrochemicaNy activated water may include sodium hydroxide, hypochlorous acid, sodium hypochlorite, or combinations thereof.
  • a method of delivering a biocide and electrochemicaNy activated water to an environment may include steps of opening a valve; passing a biocide agent including a biocide and electrochemicaNy activated water through the valve to a nozzle; passing the biocide agent through the nozzle; and forming droplets of the biocide agent, wherein a portion of the droplets have a volume mean diameter (VMD) less than about 15 microns.
  • VMD volume mean diameter
  • Figure 1 illustrates a side elevation view of a device for dispensing a biocide and electrochemically activated water in accordance with
  • Figure 2 is an enlarged side elevation view of a device for dispensing a biocide and electrochemically activated water in accordance with embodiments described herein with an electrostatic charging assembly.
  • the Figure 1 shows an embodiment of a device for dispensing a biocide and electrochemically activated water.
  • the device includes a container 100 in the form of an upright cylindrical container similar to containers used for conventional aerosol cans used to dispense materials such as air fresheners and paint.
  • Container 100 includes a conventional valve mechanism 102.
  • Valve mechanism 102 includes a valve housing 104 in which spring 106 is seated.
  • One end of valve housing 104 is connected to feed tube 108.
  • the opposite end of valve housing 104 receives a spring cup 1 10 that includes a lower end that seats itself within the coils of spring 106.
  • the upper end of spring cup 1 10 contacts the underside of gasket 1 12 to form a fluid-tight seal. Seated within the upper end of spring cup 1 10 is the lower end of stem 1 14.
  • Container 100 contains biocide agent 122.
  • Biocide agent 122 partially fills container 100.
  • the portion of container 100 that is not occupied by biocide agent 122 contains propellant gas 1 14.
  • actuator 126 is actuated, e.g., by pressing down on its top, the seal between gasket 1 12 and the upper end of spring cup 1 10 is broken and biocide agent 122 can flow through valve opening 1 16 through fluid conduit 1 18 and out nozzle 120.
  • antimicrobial agents include naturally occurring and synthetic disinfectants that are antimicrobial substances used on nonliving objects or outside the human body, for example chlorine dioxide, peracetic acid, hydrogen peroxide, essential oils such as cinnamon oil, clove oil, eucalyptus oil, garlic, oregano oil, lavender oil, leleshwa oil, lemon oil, lemon thyme oil, mint oil, neem oil, nigella sativa oil, onion oil, peppermint oil, sandalwood oil, tea tree oil and thyme oil, and electrochemical ly activated water, or combinations thereof.
  • disinfectants that are antimicrobial substances used on nonliving objects or outside the human body, for example chlorine dioxide, peracetic acid, hydrogen peroxide, essential oils such as cinnamon oil, clove oil, eucalyptus oil, garlic, oregano oil, lavender oil, leleshwa oil, lemon oil, lemon thyme oil, mint oil, neem oil, nigella sativa oil, onion oil, peppermint oil,
  • Electrochemically activated water also known as electrolyzed oxidizing water, is produced by the electrolysis of water containing dissolved sodium chloride. Generally, the electrolysis of such salt-containing water produces a solution of sodium hypochlorite. Electrochemically activated water can be produced using know techniques to electrolyze the water in a reactor that allows the separation of cathodic and anodic solutions. During the electrolysis, hydrogen gas and hydroxide ions are produced at the cathode, leading to an alkaline solution that consists essentially of sodium hydroxide. At the anode, chloride ions are oxidized to elemental chlorine.
  • Biocide agents that include a biocide and electrochemically activated water can vary in composition.
  • the relative amounts of the biocide and electrochemically activated water may be selected so that the desired biocidal effect is achieved when the biocide agent is dispensed and comes in contact with the environment to be sanitized.
  • Suitable amounts of biocides, especially biocides that are FIFRA exempt range from about 0.5 wt % to about 2.5 wt %.of the total solution of electrochemically activated water and biocide. It should be understood that the foregoing range is exemplary and that more or less biocide may be included in biocide agents of the type described herein.
  • dry fogs are advantageous for sanitizing or disinfecting a gas because the smaller droplets have a greater surface-to-volume ratio.
  • Dry fogs can be produced by a suitable combination of pressure within container 100 and the size of the opening in nozzle 120. With liquid pressures of about 500-1 ,500 psi, nozzle openings of about 0.005 inches or less may produce dry fogs having VMDs less than about 15 microns.
  • An electrostatic field can be produced by electrostatic induction or corona discharge using one or more electrodes of the type shown in Figure 2 or a ring, mesh or grid electrode. Electrostatic induction can impart a net charge to an uncharged object, such as the biocide droplets. It should be understood that an electrostatic charge can be imparted to the biocide droplets in other ways using other assemblies not shown in Figure 2. For example, the biocide can be directly charged by immersing in the biocide an electrode connected to a power source, such as a battery.
  • Another electrostatic charging assembly charges the biocide by a technique known as "tribo charging” which uses the friction of the biocide fluid against the fluid conduit of a nozzle and/or other structure through which the biocide passes as it is dispensed to impart an electrostatic charge to the biocide.
  • tribo charging uses the friction of the biocide fluid against the fluid conduit of a nozzle and/or other structure through which the biocide passes as it is dispensed to impart an electrostatic charge to the biocide.
  • biocide droplets Providing an electrostatic charge to biocide droplets promotes dispersion of the droplets in the environment into which they are dispensed and promotes contact of the droplets with target surfaces, especially surfaces very small in size and located in hard to reach locations.
  • target surfaces are positively charged, it is preferred to impart a negative charge to the biocide droplets so they will be attracted to the target surfaces.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Plant Pathology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

La présente invention concerne des dispositifs destinés à l'assainissement ou à la désinfection par distribution d'un brouillard sec d'agent biocide dans un milieu ambiant. Ces dispositifs comportent un récipient pressurisé contenant un agent biocide incluant un biocide et une eau électrochimiquement activée. Les dispositifs de l'invention peuvent s'utiliser, d'une part dans le cadre d'un procédé de distribution d'un biocide et d'eau électrochimiquement activée dans un milieu ambiant, et d'autre part dans le cadre d'un procédé de désinfection d'une surface consistant à faire entrer des gouttelettes de l'agent biocide en contact avec la surface. Un ensemble chargeur d'électricité statique confère à l'agent biocide une charge électrostatique.
PCT/US2012/069451 2011-12-14 2012-12-13 Composition biocide, dispositif et procédé de distribution d'une composition biocide WO2013090540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161570710P 2011-12-14 2011-12-14
US61/570,710 2011-12-14

Publications (1)

Publication Number Publication Date
WO2013090540A1 true WO2013090540A1 (fr) 2013-06-20

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015105852A1 (fr) 2014-01-08 2015-07-16 Nevoa Life Sciences Appareil pour désinfecter un espace fermé
ES2561933A1 (es) * 2014-08-27 2016-03-01 Decco Iberica Post Cosecha, S.A.U. Formulación biocida y/o fitosanitaria de aplicación en forma de aerosol basada en sustancias activas biodegradables no residuales
FR3029793A1 (fr) * 2014-12-16 2016-06-17 Loutfi Kachouh Dispositif de desinfection de l'air et procede de desinfection de l'air mettant en oeuvre un tel dispositif
WO2020061122A1 (fr) * 2018-09-17 2020-03-26 Ped Technologies Holdings, Llc Procédés et systèmes de production et d'application de brouillard sec
TWI759256B (zh) * 2021-11-05 2022-03-21 立晏企業有限公司 噴灑裝置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004733A (en) * 1975-07-09 1977-01-25 Research Corporation Electrostatic spray nozzle system
US4275846A (en) * 1978-09-26 1981-06-30 Imperial Chemical Industries Limited Container for electrostatic spraying of liquids
JP2003181338A (ja) * 2001-12-20 2003-07-02 Kao Corp 次亜塩素酸生成噴霧器
US7448517B2 (en) * 2006-05-31 2008-11-11 The Clorox Company Compressed gas propellants in plastic aerosols
US20100147701A1 (en) * 2008-12-17 2010-06-17 Tennant Company Method and apparatus for applying electrical charge through a liquid to enhance sanitizing properties
US20110168570A1 (en) * 2010-01-12 2011-07-14 2140909 Ontario Inc., O/A Pathocept Corporation System, method and apparatus for killing pathogens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004733A (en) * 1975-07-09 1977-01-25 Research Corporation Electrostatic spray nozzle system
US4275846A (en) * 1978-09-26 1981-06-30 Imperial Chemical Industries Limited Container for electrostatic spraying of liquids
JP2003181338A (ja) * 2001-12-20 2003-07-02 Kao Corp 次亜塩素酸生成噴霧器
US7448517B2 (en) * 2006-05-31 2008-11-11 The Clorox Company Compressed gas propellants in plastic aerosols
US20100147701A1 (en) * 2008-12-17 2010-06-17 Tennant Company Method and apparatus for applying electrical charge through a liquid to enhance sanitizing properties
US20110168570A1 (en) * 2010-01-12 2011-07-14 2140909 Ontario Inc., O/A Pathocept Corporation System, method and apparatus for killing pathogens

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015105852A1 (fr) 2014-01-08 2015-07-16 Nevoa Life Sciences Appareil pour désinfecter un espace fermé
EP3071243A4 (fr) * 2014-01-08 2017-08-09 Nevoa Life Sciences Appareil pour désinfecter un espace fermé
US10188764B2 (en) 2014-01-08 2019-01-29 Nevoa Life Sciences Apparatus for disinfecting an enclosed space
US11135328B2 (en) 2014-01-08 2021-10-05 Nevoa Life Sciences Apparatus for disinfecting an enclosed space
ES2561933A1 (es) * 2014-08-27 2016-03-01 Decco Iberica Post Cosecha, S.A.U. Formulación biocida y/o fitosanitaria de aplicación en forma de aerosol basada en sustancias activas biodegradables no residuales
WO2016030555A1 (fr) * 2014-08-27 2016-03-03 Decco Ibérica Post Cosecha, S.A.U. Formulation biocide et/ou phytosanitaire utilisée sous forme d'aérosol à base de substances actives biodégradables non résiduelles
CN107105644A (zh) * 2014-08-27 2017-08-29 滴可伊比利亚采后有限公司 用于气溶胶用途、由活性生物可分解不残留物质制备的生物杀灭和/或植物清洁制剂
AU2015308369B2 (en) * 2014-08-27 2018-11-08 Decco Iberica Post Cosecha S.A.U. Biocide and/or phytosanitary formulation for aerosol use, made of active biodegradable non-residual substances
FR3029793A1 (fr) * 2014-12-16 2016-06-17 Loutfi Kachouh Dispositif de desinfection de l'air et procede de desinfection de l'air mettant en oeuvre un tel dispositif
WO2020061122A1 (fr) * 2018-09-17 2020-03-26 Ped Technologies Holdings, Llc Procédés et systèmes de production et d'application de brouillard sec
TWI759256B (zh) * 2021-11-05 2022-03-21 立晏企業有限公司 噴灑裝置

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