[go: up one dir, main page]

WO1996014092A1 - Association biocide synergique - Google Patents

Association biocide synergique Download PDF

Info

Publication number
WO1996014092A1
WO1996014092A1 PCT/US1995/013947 US9513947W WO9614092A1 WO 1996014092 A1 WO1996014092 A1 WO 1996014092A1 US 9513947 W US9513947 W US 9513947W WO 9614092 A1 WO9614092 A1 WO 9614092A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxidant
microbiocide
glutaraldehyde
group
growth
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.)
Ceased
Application number
PCT/US1995/013947
Other languages
English (en)
Inventor
Robert M. Gerhold
Paul U. Labine
Chih M. Hwa
Grace L. Fan
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.)
WR Grace and Co Conn
WR Grace and Co
Veolia WTS USA Inc
Original Assignee
WR Grace and Co Conn
WR Grace and Co
BetzDearborn Inc
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 WR Grace and Co Conn, WR Grace and Co, BetzDearborn Inc filed Critical WR Grace and Co Conn
Priority to JP51536696A priority Critical patent/JPH10509141A/ja
Priority to NZ296363A priority patent/NZ296363A/en
Priority to EP95938952A priority patent/EP0789595A4/fr
Priority to KR1019970702893A priority patent/KR970706850A/ko
Priority to AU40147/95A priority patent/AU696309B2/en
Priority to FI971852A priority patent/FI971852A0/fi
Priority to BR9509598A priority patent/BR9509598A/pt
Publication of WO1996014092A1 publication Critical patent/WO1996014092A1/fr
Priority to NO972002A priority patent/NO972002L/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N35/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N37/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/16Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group; Thio analogues thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18Liquid substances or solutions comprising solids or dissolved gases
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023Water in cooling circuits
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry

Definitions

  • the present invention relates to microbiocidal compositions and to processes of utilizing these microbiocidal compositions for inhibiting the growth of microorganisms in aqueous systems. More particularly, the microbiocidal compositions of this invention comprise a combination of (i) an oxidant, and (ii) a non-oxidizing microbiocide optionally with a surfactant/dispersant, an anti-corrosive material, and/or an anti-scale material.
  • Pulp and paper mill systems operate under conditions which encourage the growth of microorganisms and often results in fouling problems. Moreover, microorganisms can form large slime deposits which can become dislodged and show up in the paper product as spots, holes or tears. This necessitates shutting down the paper making process to clean the equipment, and results in lost production time.
  • Slime may also be objectionable from the standpoint of cleanliness and sanitation in breweries, wineries, dairies and other industrial food and beverage process water systems.
  • sulfate reducing bacteria are often problematic in waters used for the secondary recovery of petroleum or for oil drilling in general. For example, these organisms reduce sulfates present in the injection water to form insoluble iron sulfide deposits and may enhance corrosion of metals by accelerating galvanic action.
  • oxidizing biocides have enjoyed widespread use in such applications including chlorine, chlorine dioxide and bromine.
  • these oxidizing biocides are not always effective for controlling microbiological growth.
  • oxidizing biocides are consumed by inorganic species such as ferrous iron, reduced manganese, sulfides, etc. as well as organic compounds which are commonly found in those systems.
  • biocidal compositions permit a reduction in the dosage amount of biocide required to treat nuisance microbiota in industrial waters, and significantly reduces the time required to control microbiological organisms.
  • compositions which are used to control or inhibit microbial growth, comprising (i) a microbiocidal effective amount of an oxidant selected from the group of mono- or di- peroxyorganic acids, halogen dioxides, monopersulfates, halogens, halogen releasing compounds, perborates, peroxides, persulfates, permanganates, percarbonates, ozone, and water soluble salts thereof, and mixtures thereof; and (ii) a microbiocidal effective amount of a non-oxidizing microbiocide selected from the group consisting of glutaraldehyde, limonene, bis(trichloromethyl) sulfone, 2-(decylthio)-ethanamine, dodecylguanidine hydrochloride, 2-(2-bromo-2-nitroethyl) furan, poly(oxyethylene (dimethyliminio) ethylene (dimethyliminio)
  • Also provided in accordance with the present invention is a method for controlling or inhibiting microbial growth in aqueous systems comprising adding to the system (i) a microbiocidal effective amount of an oxidant selected from the group of mono- or di- peroxyorganic acids, halogen dioxides, monopersulfates, halogens, halogen releasing compounds, perborates, peroxides, persulfates, permanganates, percarbonates, ozone, their water soluble salts, and mixtures thereof; and (ii) a microbiocidal effective amount of a non- oxidizing microbiocide selected from the group consisting of glutaraldehyde, limonene, bis(trichloromethyl) sulfone, 2-(decylthio)-ethanamine, dodecylguanidine hydrochloride, 2-(2-bromo-2-nitroethyl) furan, poly(oxyethylene (dimethyliminio) ethylene (dimethylimini
  • the present invention is directed to certain novel biocidal compositions comprising combinations of oxidants and non-oxidizing biocides which are added to an aqueous system in amounts effective to inhibit or control the growth of microorganisms in the aqueous system.
  • the biocidal compositions of this invention comprise combinations of (i) an oxidant selected from the group consisting of mono- or di-peroxyorganic acids, halogen dioxides, monopersulfates, halogens, halogen releasing compounds, perborates, peroxides, persulfates, permanganates, percarbonates, ozone, their water soluble salts, and mixtures thereof and (ii) a non-oxidizing microbiocide selected from the group consisting of glutaraldehyde, limonene, bis(trichloromethyl) sulfone, 2-(decylthio)ethanamine, dodecylguanidine hydrochloride, 2-(2-bromo-2-nitroethyl) fur
  • Suitable peroxides include inorganic peroxides such as hydrogen peroxide, sodium peroxide, as well as organic peroxides such as benzoyl peroxide and the like.
  • Suitable halogen releasing compounds include hydantoins such as 1,3-dichloro-5,5-dimethyl hydantoin, 1,3-dibromo- 5,5-dimethyl hydantoin or 1,3-diiodo-5,5-dimethyl hydantoin.
  • Suitable mono- or di-peroxyorganic acids include, but are not limited to, peracetic acid, perbenzoic acid, peroxypropionic acid, hexane diperoxoic acid, dodecanediperoxoic acid.
  • Suitable halogen dioxides include chlorine dioxide, bromine dioxide and iodine dioxide.
  • Suitable oxidants include sodium perborate, sodium percarbonate, potassium permanganate, sodium persulfate, potassium persulfate, ammonium persulfate, chlorine, bromine, iodine and chlorine, bromine, iodine releasing compounds, sodium monopersulfate, potassium monopersulfate, and ammonium monopercarbonate.
  • Potassium monopersulfate is a preferred oxidant and is commercially available from DuPont as OXONE.
  • the enhanced activity of the mixture permits a significant reduction in the total quantity of the biocide required for an effective treatment of an aqueous system.
  • the enhanced biocidal effectiveness of the compositions of the present invention was particularly surprising since not all oxidants provide enhanced biocidal activity when used in combination with non-oxidizing biocides. In fact, some oxidants are actually antagonistic when used in combination with non-oxidizing biocides, and result in less biocidal effectiveness than the use of either component alone.
  • biocidal combinations of this invention are effective for controlling and inhibiting the growth and reproduction of microorganisms in cooling water systems, pulp and paper mill systems, petroleum operations (e.g. oil well applications) , industrial lubricants and coolants, lagoons, lakes and ponds, etc.
  • the particular type of microorganisms present in these areas vary from location to location, and even at a given location over a period of time.
  • an aqueous system is treated to inhibit the growth of the microorganisms by adding to the aqueous system at least one oxidant and at least one non-oxidizing microbiocide. These components are present in the system at the same time. While it is possible to combine the oxidant and the non-oxidizing biocide, it is generally preferred not to combine the microbiocide with the oxidant too far in advance of being added to the aqueous system because these materials may adversely react when they are brought into direct contact with each other in their concentrated forms.
  • the dosage amounts of oxidant and non-oxidizing biocide which are added to an aqueous system may vary widely depending upon the nature of the aqueous system being treated, the level of organisms present in the aqueous system and the level of inhibition desired.
  • An important consideration when dosing the oxidants of the present invention are the levels of ferrous iron, reduced manganese, sulfide, ammonia, organic constituents, and the like, which may react with and thereby consume the oxidants of the present invention.
  • Oxidant Demand refers to the difference between the oxidant dosage amount and the residual oxidant concentration after a prescribed contact time and at a given pH and temperature.
  • Oxidant Requirement refers to the oxidant dosage amount required to achieve a given residual oxidant concentration at a prescribed contact time, pH and temperature. Since the levels of ferrous iron, reduced manganese, sulfide, etc. can vary widely from system to system, the oxidant demand should be determined for the aqueous system being treated in accordance with the method of this invention.
  • the dosage amount of oxidant which is added to an aqueous system i.e., a biocidally effective amount, refers to the residual oxidant concentration in an aqueous system. Residual oxidant concentration can readily be determined by one skilled in the art by conventional means. In general, the dosage amount of oxidant may be from
  • 0.1 ppm to 100 ppm preferably from about 0.5 ppm to about 45 ppm.
  • the dosage amount of microbiocide in the system may be from 0.1 ppm to 125 ppm, preferably about 0.5 ppm to about 45 ppm.
  • the resulting combination possesses a higher degree of effectiveness against microorganisms than the individual components comprising the combination. While larger quantities of the microbiocides or oxidant may be used with no detrimental effect, such large quantities increase the cost of treatment and generally provide little additional benefit.
  • the biocidal compositions of the present invention may optionally be used in combination with one or more surfactants/dispersants to disperse biomass and to enhance the dispersibility and stability of these microbiocidal formulations.
  • Suitable surfactants/ dispersants include, but are not limited to, cationic, nonionic, anionic, or amphoteric surfactants and polymers such as fluorinated surfactants, alkylaryl polyether alcohols, polyether alcohols, sodium dodecyl sulfate, sodium nonylbenzene sulfonate, sodium dioctyl sulfosuccinate, octylphenoxypolyethoxyethanol, ethylene and/or propylene oxide condensates with long chained alcohols, mercaptans, amines, carboxylic acids, sodium sulfonate of condensated naphthalene-formaldehyde and lignin sulfonate, alkyl benzene
  • FC-99 is an anionic surfactant which is a 25% active solution of amine-perfluoroalkyl sulfonates in water.
  • FC-100 is an amphoteric surfactant which is a 28% active solution of fluorosurfactant solids in glycol/water.
  • FC-129 is an anionic surfactant which is a 50% solution of potassium fluorinated alkyl carboxylates in water, butyl cellosolve and ethanol.
  • the dosage amount of surfactant/dispersant in the aqueous system is not critical, per se, provided of course that it is added in an amount effective to disperse the bi ass or stabilize a particular microbiocidal formulationa These dosage amounts are typically from 0.5 to 500 ppm.
  • the biocidal compositions of the present invention may also be used in combination with an anti-corrosive material. Suitable anti-corrosive materials include, but are not limited to, phosphates such as sodium tripolyphosphate or tetrapotassium pyrophosphate, phosphonates, carboxylates, etc.
  • the anti-corrosive material may be blended with the oxidant before being added to the system or may be added separately.
  • the anti-corrosive material is generally added to the system in a dosage amount of from 0.5 to 50% based on the total amount of oxidant and anti- corrosive material in the mixture. More preferably, the amount of the anti-corrosive material is at least 1% of the total amount of oxidant and anti-corrosive material in the mixture.
  • Powders may typically contain 1 to 15 percent of the microbiocides of this invention, while a wettable powder may be obtained by increasing the proportion of microbiocide to about 50 percent or more.
  • a typical formulation of a wettable powder comprises 20 percent to 50 percent of the suitable compounds of this invention, 45 percent to 75 percent of one or more finely divided solids, one percent to five percent of a wetting agent, and one percent to five percent of a dispersing agent.
  • oxidants of this invention may also be used in the form of liquid concentrates. These are prepared by diluting or dissolving the oxidants and/or microbiocides of this invention in a solvent together with one or more surface active agents.
  • Each table in the examples is organized to show synergy by illustrating (1) the concentration of each test material acting alone required to produce a given end-point of growth prevention or colony-forming-unit inhibition as compared to untreated controls; and (2) the lower required concentrations of the combined test materials.
  • This example shows synergies between glutaraldehyde and sodium hypochlorite.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pest Control & Pesticides (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Inorganic Chemistry (AREA)
  • Biotechnology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

La présente invention concerne des associations microbicides et des procédés pour inhiber la croissance des micro-organismes. Les nouvelles associations de la présente invention ont une activité inattendue contre des micro-organismes tels que les bactéries, les moisissures et les algues. Plus précisément, l'association microbicide contient (i) un oxydant ou un biocide oxydant tel que le monopersulfate de potassium, le perborate de sodium, le peroxyde d'hydrogène ou le percarbonate de sodium, (ii) un microbicide non oxydant tel que le glutaraldéhyde et, éventuellement, (iii) un tensioactif/dispersant, (iv) un agent anticorrosion et (v) un désincrustant.
PCT/US1995/013947 1994-11-04 1995-10-31 Association biocide synergique Ceased WO1996014092A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP51536696A JPH10509141A (ja) 1994-11-04 1995-10-31 相乗的な殺生物組合せ物
NZ296363A NZ296363A (en) 1994-11-04 1995-10-31 Synergistic biocidal compositions containing an oxidant and a non-oxidizing microbiocide for controlling bacteria
EP95938952A EP0789595A4 (fr) 1994-11-04 1995-10-31 Association biocide synergique
KR1019970702893A KR970706850A (ko) 1994-11-04 1995-10-31 상승작용성 살생 배합물(synergistic biocidal combinations)
AU40147/95A AU696309B2 (en) 1994-11-04 1995-10-31 Synergistic biocidal combinations
FI971852A FI971852A0 (fi) 1994-11-04 1995-10-31 Yhteisvaikutuksellisia biosidiyhdistelmiä
BR9509598A BR9509598A (pt) 1994-11-04 1995-10-31 Composição microbiocida processo para inibir ou controlar o crescimento e e a deposição de organismos formadores de lodo em sistemas aquosos e combinação microbiocida de materiais
NO972002A NO972002L (no) 1994-11-04 1997-04-30 Synergistiske biocidale sammenblandinger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33429194A 1994-11-04 1994-11-04
US08/334,291 1994-11-04

Publications (1)

Publication Number Publication Date
WO1996014092A1 true WO1996014092A1 (fr) 1996-05-17

Family

ID=23306527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/013947 Ceased WO1996014092A1 (fr) 1994-11-04 1995-10-31 Association biocide synergique

Country Status (11)

Country Link
EP (1) EP0789595A4 (fr)
JP (1) JPH10509141A (fr)
KR (1) KR970706850A (fr)
AU (1) AU696309B2 (fr)
BR (1) BR9509598A (fr)
CA (1) CA2204279A1 (fr)
CZ (1) CZ135497A3 (fr)
FI (1) FI971852A0 (fr)
NO (1) NO972002L (fr)
NZ (1) NZ296363A (fr)
WO (1) WO1996014092A1 (fr)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774444A1 (fr) * 1995-11-15 1997-05-21 Nalco Chemical Company Méthode et composition pour l'inhibition de la croissance des microorganismes comprenant de l'acide peracétique et un biocide non-oxidant
EP0875145A3 (fr) * 1997-04-30 1999-06-23 Nalco Chemical Company Méthode et composition pour l'inhibition de la croissancedes microorganismes comprenant de l'acide peracétique et un biocide non-oxidant.
US5922745A (en) * 1997-11-03 1999-07-13 Nalco Chemical Company Composition and method for inhibiting the growth of microorganisms including stabilized sodium hypobromite and isothiazolones
US5980758A (en) * 1993-08-05 1999-11-09 Nalco Chemical Company Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide
US6007726A (en) * 1998-04-29 1999-12-28 Nalco Chemical Company Stable oxidizing bromine formulations, methods of manufacture thereof and methods of use for microbiofouling control
WO2000004777A1 (fr) * 1998-07-22 2000-02-03 Calgon Corporation Composition anti-microbienne synergique d'acide peroxyacetique et compose phosphore
WO2000013656A1 (fr) * 1998-09-04 2000-03-16 Kay Chemical Company Composition antimicrobienne pour le lavage des mains et procede de nettoyage de la peau utilisant celle-ci
WO2000020338A3 (fr) * 1998-10-02 2000-09-08 Betzdeaborn Inc Procedes de lutte contre des macro-invertebres dans des systemes aqueux
WO2000057730A1 (fr) * 1999-03-26 2000-10-05 Ecolab Inc. Compositions antimicrobiennes et antivirales et traitement de surface d'aliments
US6214777B1 (en) 1999-09-24 2001-04-10 Ecolab, Inc. Antimicrobial lubricants useful for lubricating containers, such as beverage containers, and conveyors therefor
EP1080641A3 (fr) * 1999-08-12 2001-05-30 Nalco Chemical Company Composition et procédé pour controller la croissance biologique avec l'hypobromite de sodium stabilisé dans combinations synergiques
WO2001053602A1 (fr) * 2000-01-22 2001-07-26 Rhodia Consumer Specialties Limited Pate a papier de blanchiment
US6322749B1 (en) 1999-02-24 2001-11-27 Nalco Chemical Company Composition and method for inhibiting the growth of microorganisms including stabilized sodium hypobromite and isothiazolones
US6436445B1 (en) 1999-03-26 2002-08-20 Ecolab Inc. Antimicrobial and antiviral compositions containing an oxidizing species
WO2003031347A1 (fr) * 2001-10-09 2003-04-17 Albemarle Corporation Lutte contre des films biologiques dans des systemes d'eau industriels
JP3400253B2 (ja) 1996-08-08 2003-04-28 アクアス株式会社 藻類防除剤及び藻類防除方法
WO2003068692A1 (fr) * 2002-02-14 2003-08-21 Ciba Specialty Chemicals Holding Inc. Desodorisants pour systeme de transport des eaux usees
US6652889B2 (en) 1998-06-01 2003-11-25 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation and use
EP1391430A1 (fr) * 2002-08-22 2004-02-25 Hercules Incorporated Mélanges biocides synergétiques
EP1393629A1 (fr) * 2002-08-29 2004-03-03 Tevan B.V. Compositions aqueuses de desinfection à base des monomères d'ammonium quaternaire
US6784168B1 (en) * 1997-12-23 2004-08-31 Rhodia Consumer Specialties Limited Biocidal compositions and treatments
US6855328B2 (en) 2002-03-28 2005-02-15 Ecolab Inc. Antimicrobial and antiviral compositions containing an oxidizing species
US7087251B2 (en) 1998-06-01 2006-08-08 Albemarle Corporation Control of biofilm
US7172782B2 (en) 2001-06-28 2007-02-06 Albemarle Corporation Microbiological control in poultry processing
US7182966B2 (en) 2001-06-28 2007-02-27 Albemarle Corporation Microbiological control in poultry processing
US7195782B2 (en) 1998-06-01 2007-03-27 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
WO2009072156A1 (fr) * 2007-12-07 2009-06-11 Emanuela Manna Compositions désodorisantes et assainissantes
US7560033B2 (en) 2004-10-13 2009-07-14 E.I. Dupont De Nemours And Company Multi-functional oxidizing composition
EP1904453A4 (fr) * 2005-07-15 2010-05-26 Nalco Co Composition synergique et procede inhibant la croissance des micro-organismes
US7901276B2 (en) 2003-06-24 2011-03-08 Albemarle Corporation Microbiocidal control in the processing of meat-producing four-legged animals
US8048435B2 (en) 1998-06-01 2011-11-01 Albemarle Corporation Preparation of concentrated aqueous bromine solutions and biocidal applications thereof
US8293795B1 (en) 1998-06-01 2012-10-23 Albemarle Corporation Preparation of concentrated aqueous bromine solutions and biocidal applications thereof
US8414932B2 (en) 1998-06-01 2013-04-09 Albemarie Corporation Active bromine containing biocidal compositions and their preparation
CN103518698A (zh) * 2013-09-17 2014-01-22 上海海洋大学 一种紫菜养殖过程中的绿藻的清除方法
US8772356B2 (en) 2003-01-29 2014-07-08 Rhodia Operations Methods for treating an inorganic slurry
US9005671B2 (en) 2004-09-07 2015-04-14 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
US9018142B2 (en) 2008-12-18 2015-04-28 Peroxychem Llc Oil-field biocide method utilizing a peracid
EP1294980B2 (fr) 2000-06-08 2015-10-07 Lonza Inc. Liberateurs d'aldehyde permettant de stabiliser les peroxydes dans des applications de fabrication du papier
WO2015160487A1 (fr) 2014-04-14 2015-10-22 Ecolab Usa Inc. Biocide pour boues
US9452229B2 (en) 2005-06-10 2016-09-27 Albemarle Corporation Highly concentrated, biocidally active compositions and aqueous mixtures and methods of making the same
CN106334208A (zh) * 2015-07-11 2017-01-18 威丽斯株式会社 空气杀菌装置
WO2017037418A1 (fr) * 2015-08-31 2017-03-09 Bwa Water Additives Uk Limited Composition biocide pour le traitement de l'eau
CN108935463A (zh) * 2018-08-15 2018-12-07 新疆水处理工程技术研究中心有限公司 一种油田回注水复合杀菌剂及其制作方法
US10251971B2 (en) 2015-09-03 2019-04-09 The Administrators Of The Tulane Educational Fund Compositions and methods for multipurpose disinfection and sterilization solutions
WO2019092317A1 (fr) * 2017-11-09 2019-05-16 Kemira Oyj Procédé de fabrication d'une bande fibreuse
CN110453527A (zh) * 2011-09-30 2019-11-15 凯米拉公司 纸浆、纸或板制造方法中淀粉降解的防止
JP2020509080A (ja) * 2017-01-31 2020-03-26 クラソリューションズ ゲーエムベーハーCurasolutions Gmbh バイオフィルムの抗菌処理のための作用増強抗菌組成物
US10640699B2 (en) 2017-10-03 2020-05-05 Italmatch Chemicals Gb Limited Treatment of circulating water systems including well treatment fluids for oil and gas applications

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074903A (ko) * 2001-03-22 2002-10-04 김용국 농약 조성물 및 그 용도
KR20020074899A (ko) * 2001-03-22 2002-10-04 김용국 살균·살충·소독제 조성물
JP4628037B2 (ja) * 2004-08-06 2011-02-09 ケイ・アイ化成株式会社 水処理用の環境応力亀裂の防止方法
DE102007051006A1 (de) * 2007-10-25 2009-04-30 Lanxess Deutschland Gmbh Stabile, synergistische Mischungen
WO2010009064A2 (fr) * 2008-07-15 2010-01-21 Basf Corporation Liiquides à base de dioxyde de chlore non cytotoxique
JP5513776B2 (ja) * 2008-12-01 2014-06-04 花王株式会社 バイオフィルム除去剤組成物
PL2434877T3 (pl) * 2009-05-26 2014-08-29 Dow Global Technologies Llc Kompozycje biobójcze zawierające glutaraldehyd 1-(3-chloroallilo)-3,5,7-triaza-1-azoniaadamantan i sposoby ich stosowania
CN103068246B (zh) * 2010-08-13 2015-04-15 陶氏环球技术有限责任公司 生物灭杀组合物
US9210936B2 (en) * 2011-09-15 2015-12-15 Dow Global Technologies Llc Biocidal compositions and methods of use
KR101450150B1 (ko) * 2012-05-02 2014-10-13 김영준 과탄산염을 포함하는 조류 제거용 조성물
CN104719336A (zh) * 2015-02-02 2015-06-24 山东威高药业股份有限公司 一种低腐蚀性单过硫酸氢钾复合盐消毒剂

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802994A (en) * 1986-07-17 1989-02-07 Nalco Chemical Company Biocide treatment to control sulfate-reducing bacteria in industrial process waste waters
US4975109A (en) * 1988-05-02 1990-12-04 Lester Technologies Corp. Microbiocidal combinations of materials and their use
US5368749A (en) * 1994-05-16 1994-11-29 Nalco Chemical Company Synergistic activity of glutaraldehyde in the presence of oxidants

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324784A (en) * 1980-03-19 1982-04-13 Mitsubishi Gas Chemical Company, Inc. Process for preventing growth of marine organisms on a substance using hydrogen peroxide
GB2118925B (en) * 1982-04-19 1985-06-26 Dearborn Chemical Limited Biocide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802994A (en) * 1986-07-17 1989-02-07 Nalco Chemical Company Biocide treatment to control sulfate-reducing bacteria in industrial process waste waters
US4975109A (en) * 1988-05-02 1990-12-04 Lester Technologies Corp. Microbiocidal combinations of materials and their use
US5368749A (en) * 1994-05-16 1994-11-29 Nalco Chemical Company Synergistic activity of glutaraldehyde in the presence of oxidants

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0789595A4 *

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980758A (en) * 1993-08-05 1999-11-09 Nalco Chemical Company Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide
AU711715B2 (en) * 1995-11-15 1999-10-21 Nalco Chemical Company Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide
EP0774444A1 (fr) * 1995-11-15 1997-05-21 Nalco Chemical Company Méthode et composition pour l'inhibition de la croissance des microorganismes comprenant de l'acide peracétique et un biocide non-oxidant
JP3400253B2 (ja) 1996-08-08 2003-04-28 アクアス株式会社 藻類防除剤及び藻類防除方法
EP0875145A3 (fr) * 1997-04-30 1999-06-23 Nalco Chemical Company Méthode et composition pour l'inhibition de la croissancedes microorganismes comprenant de l'acide peracétique et un biocide non-oxidant.
US6419879B1 (en) 1997-11-03 2002-07-16 Nalco Chemical Company Composition and method for controlling biological growth using stabilized sodium hypobromite in synergistic combinations
US5922745A (en) * 1997-11-03 1999-07-13 Nalco Chemical Company Composition and method for inhibiting the growth of microorganisms including stabilized sodium hypobromite and isothiazolones
US6784168B1 (en) * 1997-12-23 2004-08-31 Rhodia Consumer Specialties Limited Biocidal compositions and treatments
US6007726A (en) * 1998-04-29 1999-12-28 Nalco Chemical Company Stable oxidizing bromine formulations, methods of manufacture thereof and methods of use for microbiofouling control
US8679548B2 (en) 1998-06-01 2014-03-25 Albemarle Corporation Active bromine containing biocidal compositions and their preparation
US8409630B2 (en) 1998-06-01 2013-04-02 Albermarle Corporation Continuous processes for preparing concentrated aqueous liquid biocidal compositions
US7195782B2 (en) 1998-06-01 2007-03-27 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
US7087251B2 (en) 1998-06-01 2006-08-08 Albemarle Corporation Control of biofilm
US8048435B2 (en) 1998-06-01 2011-11-01 Albemarle Corporation Preparation of concentrated aqueous bromine solutions and biocidal applications thereof
US8293795B1 (en) 1998-06-01 2012-10-23 Albemarle Corporation Preparation of concentrated aqueous bromine solutions and biocidal applications thereof
US8414932B2 (en) 1998-06-01 2013-04-09 Albemarie Corporation Active bromine containing biocidal compositions and their preparation
US6652889B2 (en) 1998-06-01 2003-11-25 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation and use
WO2000004777A1 (fr) * 1998-07-22 2000-02-03 Calgon Corporation Composition anti-microbienne synergique d'acide peroxyacetique et compose phosphore
WO2000013656A1 (fr) * 1998-09-04 2000-03-16 Kay Chemical Company Composition antimicrobienne pour le lavage des mains et procede de nettoyage de la peau utilisant celle-ci
WO2000020338A3 (fr) * 1998-10-02 2000-09-08 Betzdeaborn Inc Procedes de lutte contre des macro-invertebres dans des systemes aqueux
US6322749B1 (en) 1999-02-24 2001-11-27 Nalco Chemical Company Composition and method for inhibiting the growth of microorganisms including stabilized sodium hypobromite and isothiazolones
US6534075B1 (en) 1999-03-26 2003-03-18 Ecolab Inc. Antimicrobial and antiviral compositions and treatments for food surfaces
US6436445B1 (en) 1999-03-26 2002-08-20 Ecolab Inc. Antimicrobial and antiviral compositions containing an oxidizing species
WO2000057730A1 (fr) * 1999-03-26 2000-10-05 Ecolab Inc. Compositions antimicrobiennes et antivirales et traitement de surface d'aliments
KR100855912B1 (ko) * 1999-08-12 2008-09-02 날코 컴파니 상승작용적 결합물에서 안정화 하이포아브롬산염 나트륨을이용한 생물학적 성장 제어용 조성물 및 방법
EP1080641A3 (fr) * 1999-08-12 2001-05-30 Nalco Chemical Company Composition et procédé pour controller la croissance biologique avec l'hypobromite de sodium stabilisé dans combinations synergiques
US6214777B1 (en) 1999-09-24 2001-04-10 Ecolab, Inc. Antimicrobial lubricants useful for lubricating containers, such as beverage containers, and conveyors therefor
KR100794436B1 (ko) 2000-01-22 2008-01-16 로디아 유케이 리미티드 펄프 표백법
US7214292B2 (en) 2000-01-22 2007-05-08 Rhodia Consumer Specialties Limited Addition of THP or THP+ salt to pulping liquors to destroy catalase and/or catalase producing bacteria
WO2001053602A1 (fr) * 2000-01-22 2001-07-26 Rhodia Consumer Specialties Limited Pate a papier de blanchiment
EP1294980B2 (fr) 2000-06-08 2015-10-07 Lonza Inc. Liberateurs d'aldehyde permettant de stabiliser les peroxydes dans des applications de fabrication du papier
US7182966B2 (en) 2001-06-28 2007-02-27 Albemarle Corporation Microbiological control in poultry processing
US7172782B2 (en) 2001-06-28 2007-02-06 Albemarle Corporation Microbiological control in poultry processing
WO2003031347A1 (fr) * 2001-10-09 2003-04-17 Albemarle Corporation Lutte contre des films biologiques dans des systemes d'eau industriels
WO2003068692A1 (fr) * 2002-02-14 2003-08-21 Ciba Specialty Chemicals Holding Inc. Desodorisants pour systeme de transport des eaux usees
US6855328B2 (en) 2002-03-28 2005-02-15 Ecolab Inc. Antimicrobial and antiviral compositions containing an oxidizing species
US7008545B2 (en) 2002-08-22 2006-03-07 Hercules Incorporated Synergistic biocidal mixtures
EP1391430A1 (fr) * 2002-08-22 2004-02-25 Hercules Incorporated Mélanges biocides synergétiques
CN1325388C (zh) * 2002-08-22 2007-07-11 赫尔克里士公司 协同杀生物混合物
WO2004018368A1 (fr) * 2002-08-22 2004-03-04 Hercules Incorporated Melanges biocides synergiques
EP1393629A1 (fr) * 2002-08-29 2004-03-03 Tevan B.V. Compositions aqueuses de desinfection à base des monomères d'ammonium quaternaire
US8772356B2 (en) 2003-01-29 2014-07-08 Rhodia Operations Methods for treating an inorganic slurry
US7901276B2 (en) 2003-06-24 2011-03-08 Albemarle Corporation Microbiocidal control in the processing of meat-producing four-legged animals
US9005671B2 (en) 2004-09-07 2015-04-14 Albemarle Corporation Concentrated aqueous bromine solutions and their preparation
US7560033B2 (en) 2004-10-13 2009-07-14 E.I. Dupont De Nemours And Company Multi-functional oxidizing composition
US9452229B2 (en) 2005-06-10 2016-09-27 Albemarle Corporation Highly concentrated, biocidally active compositions and aqueous mixtures and methods of making the same
EP3284740A1 (fr) * 2005-07-15 2018-02-21 Nalco Company Composition synergique et procédé pour inhiber la croissance de micro-organismes
EP1904453A4 (fr) * 2005-07-15 2010-05-26 Nalco Co Composition synergique et procede inhibant la croissance des micro-organismes
WO2009071664A1 (fr) * 2007-12-07 2009-06-11 Emanuela Manna Compositions désodorisantes et désinfectantes
WO2009072156A1 (fr) * 2007-12-07 2009-06-11 Emanuela Manna Compositions désodorisantes et assainissantes
US9018142B2 (en) 2008-12-18 2015-04-28 Peroxychem Llc Oil-field biocide method utilizing a peracid
CN110453527A (zh) * 2011-09-30 2019-11-15 凯米拉公司 纸浆、纸或板制造方法中淀粉降解的防止
CN103518698A (zh) * 2013-09-17 2014-01-22 上海海洋大学 一种紫菜养殖过程中的绿藻的清除方法
CN106170458A (zh) * 2014-04-14 2016-11-30 艺康美国股份有限公司 浆料杀生物剂
EP3131854A4 (fr) * 2014-04-14 2018-01-10 Ecolab USA Inc. Biocide pour boues
US9909219B2 (en) 2014-04-14 2018-03-06 Ecolab Usa Inc. Slurry biocide
WO2015160487A1 (fr) 2014-04-14 2015-10-22 Ecolab Usa Inc. Biocide pour boues
CN106334208B (zh) * 2015-07-11 2019-08-13 威丽斯株式会社 空气杀菌装置
CN106334208A (zh) * 2015-07-11 2017-01-18 威丽斯株式会社 空气杀菌装置
WO2017037418A1 (fr) * 2015-08-31 2017-03-09 Bwa Water Additives Uk Limited Composition biocide pour le traitement de l'eau
US10251971B2 (en) 2015-09-03 2019-04-09 The Administrators Of The Tulane Educational Fund Compositions and methods for multipurpose disinfection and sterilization solutions
JP2020509080A (ja) * 2017-01-31 2020-03-26 クラソリューションズ ゲーエムベーハーCurasolutions Gmbh バイオフィルムの抗菌処理のための作用増強抗菌組成物
US10640699B2 (en) 2017-10-03 2020-05-05 Italmatch Chemicals Gb Limited Treatment of circulating water systems including well treatment fluids for oil and gas applications
WO2019092317A1 (fr) * 2017-11-09 2019-05-16 Kemira Oyj Procédé de fabrication d'une bande fibreuse
CN111315930A (zh) * 2017-11-09 2020-06-19 凯米拉公司 用于生产纤维网的方法
JP2021502499A (ja) * 2017-11-09 2021-01-28 ケミラ・オーワイジェイKemira Oyj 繊維ウェブを製造するための方法
US11530514B2 (en) 2017-11-09 2022-12-20 Kemira Oyj Method for manufacturing a fibrous web
CN111315930B (zh) * 2017-11-09 2022-12-20 凯米拉公司 用于生产纤维网的方法
CN108935463A (zh) * 2018-08-15 2018-12-07 新疆水处理工程技术研究中心有限公司 一种油田回注水复合杀菌剂及其制作方法

Also Published As

Publication number Publication date
CA2204279A1 (fr) 1996-05-17
FI971852L (fi) 1997-04-30
FI971852A7 (fi) 1997-04-30
AU696309B2 (en) 1998-09-03
EP0789595A4 (fr) 2000-11-02
KR970706850A (ko) 1997-12-01
NO972002D0 (no) 1997-04-30
JPH10509141A (ja) 1998-09-08
CZ135497A3 (en) 1997-08-13
NO972002L (no) 1997-07-02
NZ296363A (en) 1999-04-29
AU4014795A (en) 1996-05-31
FI971852A0 (fi) 1997-04-30
MX9703280A (es) 1998-07-31
BR9509598A (pt) 1998-01-06
EP0789595A1 (fr) 1997-08-20

Similar Documents

Publication Publication Date Title
AU696309B2 (en) Synergistic biocidal combinations
US4975109A (en) Microbiocidal combinations of materials and their use
JP4709486B2 (ja) 産業用水システム中のバイオフィルムの抑制
CA2252346C (fr) Preparation, comprenant de l'hypobromite de sodium stabilise et des isothiazolines, et methode servant a inhiber la multiplication des microorganismes
CA2359068C (fr) Procede d'elimination de films biologiques de surfaces immergees dans un systeme d'eau pollue
CA2669744C (fr) Procede servant a empecher le developpement de microorganismes et combinaison d'agents servant a empecher le developpement microbien
US5256182A (en) Microbiocidal combinations of materials and their use
AU2002334934A1 (en) Control of biofilms in industrial water systems
WO1995015683A1 (fr) Procedes et compositions biocides de traitement des eaux potables et sanitaires
JP2003523370A (ja) 殺菌活性を向上させる方法
JP2918760B2 (ja) パルプ製紙系の工業用水の殺菌剤としてのグルタルアルデヒドと2−(チオシアノメチルチオ)ベンゾチアゾールの使用
US3860713A (en) Slime controlling compositions and their use
US3873444A (en) Slime control compositions and their use
Williams Isothiazolone biocides in water treatment applications
MXPA97003280A (en) Biocidal combinations sinergisti
JPH0587481B2 (fr)
KR0169743B1 (ko) 2-(데실티오)에탄아민과 1,2-디브로모-2,4-디시아노부탄의 상승작용성 살균 조성물
AU1651792A (en) Microbiocidal combinations of materials and their use
HK1087094A1 (zh) 除去生物膜的方法
HK1087094B (en) Method for removal of biofilm
CA2557860A1 (fr) Composition comportant de l'hypobromite de sodium stabilise et d'autres composes et methode pour inhiber la croissance de microorganismes
MXPA01008029A (en) Method of removing biofilms from surfaces submerged in a fouled water system
HK1124304B (en) Method for removal of biofilm

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1995938952

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 296363

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 971852

Country of ref document: FI

ENP Entry into the national phase

Ref document number: 2204279

Country of ref document: CA

Ref country code: CA

Ref document number: 2204279

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1019970702893

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: PV1997-1354

Country of ref document: CZ

WWE Wipo information: entry into national phase

Ref document number: PA/a/1997/003280

Country of ref document: MX

WWP Wipo information: published in national office

Ref document number: PV1997-1354

Country of ref document: CZ

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1995938952

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1019970702893

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1019970702893

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1995938952

Country of ref document: EP

WWR Wipo information: refused in national office

Ref document number: PV1997-1354

Country of ref document: CZ