ATE95992T1 - Sauerstoffabsorptionsmittel. - Google Patents

Sauerstoffabsorptionsmittel.

Info

Publication number
ATE95992T1
ATE95992T1 AT91303902T AT91303902T ATE95992T1 AT E95992 T1 ATE95992 T1 AT E95992T1 AT 91303902 T AT91303902 T AT 91303902T AT 91303902 T AT91303902 T AT 91303902T AT E95992 T1 ATE95992 T1 AT E95992T1
Authority
AT
Austria
Prior art keywords
oxygen absorbent
food
oxygen
flowability
deteriorating
Prior art date
Application number
AT91303902T
Other languages
English (en)
Inventor
Ryuzo Ueno
Akihiko Tabata
Original Assignee
Ueno Seiyaku Oyo Kenkyujo Kk
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 Ueno Seiyaku Oyo Kenkyujo Kk filed Critical Ueno Seiyaku Oyo Kenkyujo Kk
Application granted granted Critical
Publication of ATE95992T1 publication Critical patent/ATE95992T1/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/3463—Organic compounds; Microorganisms; Enzymes
    • A23L3/3481—Organic compounds containing oxygen
    • A23L3/3508—Organic compounds containing oxygen containing carboxyl groups
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A23L3/3427—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O in which an absorbent is placed or used
    • A23L3/3436—Oxygen absorbent
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/358—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
    • B01J20/0281—Sulfates of compounds other than those provided for in B01J20/045
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2805—Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3092—Packing of a container, e.g. packing a cartridge or column
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46—Materials comprising a mixture of inorganic and organic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Gas Separation By Absorption (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AT91303902T 1990-05-16 1991-04-30 Sauerstoffabsorptionsmittel. ATE95992T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12775590 1990-05-16
JP3068332A JP2701999B2 (ja) 1990-05-16 1991-04-01 酸素吸収剤

Publications (1)

Publication Number Publication Date
ATE95992T1 true ATE95992T1 (de) 1993-11-15

Family

ID=26409552

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91303902T ATE95992T1 (de) 1990-05-16 1991-04-30 Sauerstoffabsorptionsmittel.

Country Status (9)

Country Link
US (1) US5128060A (de)
EP (1) EP0457457B1 (de)
JP (1) JP2701999B2 (de)
KR (1) KR960014899B1 (de)
AT (1) ATE95992T1 (de)
CA (2) CA2041499C (de)
DE (1) DE69100520T2 (de)
DK (1) DK0457457T3 (de)
ES (1) ES2047377T3 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256311A (en) * 1989-06-21 1993-10-26 Betz Laboratories, Inc. Hydroxyalkylhydroxylamine oxygen scavenger in aqueous mediums
US5236617A (en) * 1990-05-16 1993-08-17 K.K. Ueno Seiyaku Oyo Kenkyujc Oxygen absorbent
JP3126041B2 (ja) * 1990-08-20 2001-01-22 株式会社上野製薬応用研究所 嗜好性飲料原料の風味保持剤および風味保持方法
JP3013860B2 (ja) * 1991-03-22 2000-02-28 三菱瓦斯化学株式会社 食品保存剤およびこれを用いた食品の保存方法
US5364555A (en) * 1991-04-30 1994-11-15 Advanced Oxygen Technologies, Inc. Polymer compositions containing salicylic acid chelates as oxygen scavengers
KR950704393A (ko) * 1992-11-25 1995-11-20 스티븐 에스. 그레이스 메소제닉 잔기를 함유하는 열경화성 조성물(thermosettable composition containing mesogenic moieties)
US6369148B2 (en) * 1993-07-16 2002-04-09 Ciba Specialty Chemicals Corporation Oxygen-scavenging compositions and articles
EP0640990B1 (de) * 1993-08-24 1995-11-15 GESELLSCHAFT FÜR ANLAGEN- UND REAKTORSICHERHEIT ( GRS) mbH Vorrichtung zur passiven Inertisierung des Gasgemisches im Sicherheitsbehälter eines Kernkraftwerkes
WO1995018674A1 (en) * 1994-01-10 1995-07-13 Atmi Ecosys Corporation Metallo-oxomeric scrubber compositions, and method of gas purification utilizing same
US5698250A (en) 1996-04-03 1997-12-16 Tenneco Packaging Inc. Modifield atmosphere package for cut of raw meat
US5830545A (en) * 1996-04-29 1998-11-03 Tetra Laval Holdings & Finance, S.A. Multilayer, high barrier laminate
US5928560A (en) 1996-08-08 1999-07-27 Tenneco Packaging Inc. Oxygen scavenger accelerator
US6926846B1 (en) 1996-08-08 2005-08-09 Pactiv Corporation Methods of using an oxygen scavenger
US6395195B1 (en) 1996-08-08 2002-05-28 Pactiv Corporation Oxygen scavenger accelerator
US6686006B1 (en) * 1997-05-16 2004-02-03 Cyrovac, Inc. Amorphous silica in packaging film
AU4729697A (en) * 1997-09-09 1999-03-29 Peterson Seffle Aktiebolag Packaging material
US6054153A (en) 1998-04-03 2000-04-25 Tenneco Packaging Inc. Modified atmosphere package with accelerated reduction of oxygen level in meat compartment
US6231905B1 (en) 1998-10-08 2001-05-15 Delduca Gary R. System and method of making a modified atmosphere package comprising an activated oxygen scavenger for packaging meat
US6321509B1 (en) 1999-06-11 2001-11-27 Pactiv Corporation Method and apparatus for inserting an oxygen scavenger into a modified atmosphere package
JP4950391B2 (ja) * 2001-06-27 2012-06-13 上野製薬株式会社 酸素吸収剤
JP2003190784A (ja) * 2001-10-17 2003-07-08 Kawatetsu Techno Res Corp 脱酸素剤およびその包装体
US6747066B2 (en) * 2002-01-31 2004-06-08 Conocophillips Company Selective removal of oxygen from syngas
EP1550506B1 (de) * 2002-10-08 2016-03-09 Mitsubishi Gas Chemical Company, Inc. Sauerstofffängerzusammensetzung
US7045554B2 (en) * 2003-09-03 2006-05-16 Conocophillips Company Method for improved Fischer-Tropsch catalyst stability and higher stable syngas conversion
AU2007291956A1 (en) * 2006-08-30 2008-03-06 Amcor Limited Hydrophobic packaging material including a sulphite salt
JP4753902B2 (ja) * 2007-03-09 2011-08-24 株式会社常盤産業 有機系の酸素吸収剤
US8545796B2 (en) 2009-07-31 2013-10-01 Cristal Usa Inc. Silica-stabilized ultrafine anatase titania, vanadia catalysts, and methods of production thereof
CO6380009A1 (es) 2010-08-13 2012-02-15 Perilla Jorge Alberto Medina Compuesto absorbedor de oxigeno encapsulado en una matriz de silica y metodo para producirlo
DK3721994T3 (da) 2012-08-24 2023-01-23 Tronox Llc Katalysatorbærer omfattende titandioxid, molybdænoxid, phosphor og silicimdioxid
KR101526654B1 (ko) * 2013-03-05 2015-06-09 주식회사 립멘 다공성 담체를 이용한 유기계 산소흡수제와 그 제조방법
CA3044958A1 (en) 2016-12-01 2018-06-07 Multisorb Technologies, Inc. Oxygen absorbing and carbon dioxide emitting composition
CN111938066A (zh) * 2020-08-14 2020-11-17 淮安市威特保鲜剂有限公司 一种金属离子参与的有机脱氧剂
JP2022077359A (ja) * 2020-11-11 2022-05-23 株式会社ウエノフードテクノ 食品用品質保持剤
JP7046399B2 (ja) * 2021-02-19 2022-04-04 パウダーテック株式会社 有機系脱酸素剤

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JPS53140292A (en) * 1977-05-02 1978-12-07 Toyo Ink Mfg Co Ltd Oxygen absorbent composition
US4384972A (en) * 1977-06-21 1983-05-24 Toppan Printing Co., Ltd. Foodstuff freshness keeping agents
JPS5556834A (en) * 1978-10-23 1980-04-26 Mitsubishi Chem Ind Ltd Deoxidation agent
US4366179A (en) * 1980-03-17 1982-12-28 Mitsubishi Gas Chemical Company, Inc. Oxygen and carbon dioxide absorbent and process for storing coffee by using the same
JPS5932945A (ja) * 1982-08-17 1984-02-22 Mitsubishi Gas Chem Co Inc 粒状脱酸素剤
US4524015A (en) * 1982-08-09 1985-06-18 Mitsubishi Gas Chemical Company, Inc. Oxygen absorbent
JPS60221031A (ja) * 1984-04-16 1985-11-05 Mitsubishi Gas Chem Co Inc 生肉の保存方法
US4588561A (en) * 1984-07-06 1986-05-13 Becton, Dickinson And Company Package for removing oxygen from a gaseous mixture
JPS6283194A (ja) * 1985-10-09 1987-04-16 Fuji Photo Film Co Ltd 平版印刷版用版面保護剤
JPS62244443A (ja) * 1986-04-16 1987-10-24 Shimadaya Honten:Kk 脱酸素剤
US4943440A (en) * 1986-10-22 1990-07-24 General Mills, Inc. Controlled atmosphere cut vegetable produce package and method
DE3804488A1 (de) * 1987-02-14 1988-08-25 Mitsubishi Gas Chemical Co Sauerstoffabsorptionsmittel
JPH02268807A (ja) * 1989-04-10 1990-11-02 Toppan Printing Co Ltd 脱酸素方法

Also Published As

Publication number Publication date
KR960014899B1 (ko) 1996-10-21
ES2047377T3 (es) 1994-02-16
US5128060A (en) 1992-07-07
EP0457457A3 (en) 1992-01-08
EP0457457B1 (de) 1993-10-20
CA2041499C (en) 2002-03-26
DK0457457T3 (da) 1993-11-22
KR910019674A (ko) 1991-12-19
JPH04215842A (ja) 1992-08-06
CA2041499A1 (en) 1991-11-17
DE69100520T2 (de) 1994-02-17
EP0457457A2 (de) 1991-11-21
JP2701999B2 (ja) 1998-01-21
CA2042796A1 (en) 1991-11-17
DE69100520D1 (de) 1993-11-25

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Legal Events

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UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee