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GB1511563A - Water-insoluble hydrophilic copolymers - Google Patents

Water-insoluble hydrophilic copolymers

Info

Publication number
GB1511563A
GB1511563A GB26942/75A GB2694275A GB1511563A GB 1511563 A GB1511563 A GB 1511563A GB 26942/75 A GB26942/75 A GB 26942/75A GB 2694275 A GB2694275 A GB 2694275A GB 1511563 A GB1511563 A GB 1511563A
Authority
GB
United Kingdom
Prior art keywords
water
copolymers
hydrophilic
hydrophilic copolymers
insoluble hydrophilic
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.)
Expired
Application number
GB26942/75A
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of GB1511563A publication Critical patent/GB1511563A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/671—Unsaturated compounds having only one group containing active hydrogen
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A01N25/10—Macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1635—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2027—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/225—Mixtures of macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/048—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating air treating gels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80—Block polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C08F290/062—Polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
    • C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
    • C08F299/06—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2210/00—Compositions for preparing hydrogels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Hematology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Materials Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Dermatology (AREA)
  • Dentistry (AREA)
  • Toxicology (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Materials For Medical Uses (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Medicinal Preparation (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a process for the preparation of crosslinked, water-insoluble, hydrophilic copolymers by copolymerisation of a hydrophilic homopolymer or copolymer with a hydrophobic macromer. These copolymers are suitable for use as hydrophilic membranes in separation methods, as wound bandages, body implants, for example artificial veins, furthermore as coatings on glass, metal, horn or ceramic, and as a support material for bioactive compounds.
GB26942/75A 1974-06-27 1975-06-25 Water-insoluble hydrophilic copolymers Expired GB1511563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48374374A 1974-06-27 1974-06-27

Publications (1)

Publication Number Publication Date
GB1511563A true GB1511563A (en) 1978-05-24

Family

ID=23921343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26942/75A Expired GB1511563A (en) 1974-06-27 1975-06-25 Water-insoluble hydrophilic copolymers

Country Status (17)

Country Link
JP (1) JPS5927766B2 (en)
AT (1) AT336891B (en)
AU (1) AU498575B2 (en)
BE (1) BE830653A (en)
CA (1) CA1097448A (en)
CH (1) CH616694A5 (en)
DE (1) DE2528068A1 (en)
DK (1) DK152740C (en)
ES (1) ES438862A1 (en)
FR (1) FR2276063A1 (en)
GB (1) GB1511563A (en)
IE (1) IE41567B1 (en)
IL (1) IL47577A (en)
NL (1) NL7507704A (en)
NZ (1) NZ177941A (en)
SE (1) SE429049B (en)
ZA (1) ZA754096B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725261A1 (en) * 1977-06-03 1978-12-14 Max Planck Gesellschaft Transparent liq. gels e.g. of hydrophilic acrylic! polymer and gelatin - useful as wound dressings, esp. for burns and ulcers, and as cell culture media
FR2561653A1 (en) * 1984-03-24 1985-09-27 Tomei Sangyo Kk POLYMERIC MATERIAL FOR FORMING TRANSPARENT HYDROGELS WITH HIGH PERMEABILITY FOR GAS AND GOOD MECHANICAL PROPERTIES
EP0245858A2 (en) * 1986-05-14 1987-11-19 Takiron Co. Ltd. Adhesive for percutaneous administration
US4846185A (en) * 1987-11-25 1989-07-11 Minnesota Mining And Manufacturing Company Bioelectrode having a galvanically active interfacing material
US4883699A (en) * 1984-09-21 1989-11-28 Menlo Care, Inc. Polymeric article having high tensile energy to break when hydrated
US4911691A (en) * 1984-09-21 1990-03-27 Menlo Care, Inc. Assembly for adminstering IV solution
US4931282A (en) * 1987-11-25 1990-06-05 Minnesota Mining And Manufacturing Company Pressure-sensitive medical sealant
US5225473A (en) * 1987-11-25 1993-07-06 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesives
US6552142B1 (en) 1999-02-25 2003-04-22 Basf Akeiengesellschaft Process for preparing aqueous dispersions of copolymers from hydrophilic and hydrophilic monomers, copolymers obtainable therefrom and uses thereof
WO2009016112A2 (en) * 2007-08-02 2009-02-05 Basf Se Polymer networks comprising active ingredients, process for their production, and their use

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU494547B2 (en) * 1972-07-10 1977-10-20 Johnson & Johnson Hydrophilic random interpolymer compositions and method for making same
US4235988A (en) 1976-12-13 1980-11-25 Imperial Chemical Industries Limited Delivery means for biologically active agents
GB1594389A (en) * 1977-06-03 1981-07-30 Max Planck Gesellschaft Dressing material for wounds
EP0000507B1 (en) * 1977-07-20 1982-09-29 Ciba-Geigy Ag Process for the production of hydrogels in the form of spherically shaped beads with larger diameters
US4136250A (en) * 1977-07-20 1979-01-23 Ciba-Geigy Corporation Polysiloxane hydrogels
JPS5535910A (en) * 1978-09-06 1980-03-13 Teijin Ltd Permselectivity composite membrane and preparation thereof
AT371723B (en) * 1978-11-15 1983-07-25 Max Planck Gesellschaft TRANSPARENT LIQUID BANDAGE MATERIAL, AND METHOD FOR THE PRODUCTION THEREOF
SE431821B (en) * 1979-01-29 1984-03-05 Perstorp Ab STORAGE STABLE, PROSTAGLANDIN-CONTAINING MEDICAL PREPARATION
SU1243627A3 (en) * 1979-12-05 1986-07-07 Дзе Кендалл Компани (Фирма) Jelly-forming composition
SE448544B (en) * 1979-12-05 1987-03-02 Kendall & Co WATER ABSORPTION COMPOSITION AND USE THEREOF AS A CARRIER FOR A MEDICINE
US4892736A (en) * 1983-10-07 1990-01-09 The Forsyth Dental Infirmary For Children Intra-pocket drug delivery devices for treatment of periodontal diseases
US5019636A (en) * 1989-05-10 1991-05-28 Allied-Signal Inc. Polyester chain-extended vinyl ether urethane oligomers
US5210111A (en) * 1991-08-22 1993-05-11 Ciba-Geigy Corporation Crosslinked hydrogels derived from hydrophilic polymer backbones

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297745A (en) * 1962-04-05 1967-01-10 Robertson Co H H Ethylenically unsaturated di-and tetra-urethane monomers
US3553174A (en) * 1967-11-27 1971-01-05 Amicon Corp Reaction product of a hydroxyacrylate and an aliphatic isocyanate and transparent article made therefrom
US3677920A (en) * 1968-07-06 1972-07-18 Asahi Chemical Ind Photopolymerizable diisocyanate modified unsaturated polyester containing acrylic monomers
NL206587A (en) * 1970-08-05
GB1352063A (en) * 1971-01-08 1974-05-15 Ici Ltd Polymerisable compositions and resins derived thererom
GB1439132A (en) * 1972-03-13 1976-06-09 Special Polymers Ltd Method for the production of a hydrophilic polymer product

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725261A1 (en) * 1977-06-03 1978-12-14 Max Planck Gesellschaft Transparent liq. gels e.g. of hydrophilic acrylic! polymer and gelatin - useful as wound dressings, esp. for burns and ulcers, and as cell culture media
FR2561653A1 (en) * 1984-03-24 1985-09-27 Tomei Sangyo Kk POLYMERIC MATERIAL FOR FORMING TRANSPARENT HYDROGELS WITH HIGH PERMEABILITY FOR GAS AND GOOD MECHANICAL PROPERTIES
GB2157301A (en) * 1984-03-24 1985-10-23 Tomei Sangyo Kk Hydrogel copolymers
US4699946A (en) * 1984-03-24 1987-10-13 Tomei Sangyo Kabushiki Kaisha Hydrogel fundamental material
US4788227A (en) * 1984-03-24 1988-11-29 Tomei Sangyo Kabushiki Kaisha Contact lens formed from a hydrogel fundamental material
US4883699A (en) * 1984-09-21 1989-11-28 Menlo Care, Inc. Polymeric article having high tensile energy to break when hydrated
US4911691A (en) * 1984-09-21 1990-03-27 Menlo Care, Inc. Assembly for adminstering IV solution
EP0245858A2 (en) * 1986-05-14 1987-11-19 Takiron Co. Ltd. Adhesive for percutaneous administration
EP0245858A3 (en) * 1986-05-14 1990-04-11 Takiron Co. Ltd. Adhesive for percutaneous administration
US4846185A (en) * 1987-11-25 1989-07-11 Minnesota Mining And Manufacturing Company Bioelectrode having a galvanically active interfacing material
US4931282A (en) * 1987-11-25 1990-06-05 Minnesota Mining And Manufacturing Company Pressure-sensitive medical sealant
US5225473A (en) * 1987-11-25 1993-07-06 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesives
US6552142B1 (en) 1999-02-25 2003-04-22 Basf Akeiengesellschaft Process for preparing aqueous dispersions of copolymers from hydrophilic and hydrophilic monomers, copolymers obtainable therefrom and uses thereof
WO2009016112A2 (en) * 2007-08-02 2009-02-05 Basf Se Polymer networks comprising active ingredients, process for their production, and their use
WO2009016112A3 (en) * 2007-08-02 2009-12-23 Basf Se Polymer networks comprising active ingredients, process for their production, and their use
CN101778562A (en) * 2007-08-02 2010-07-14 巴斯夫欧洲公司 Polymer networks comprising active ingredients, process for their production, and their use
US20120157316A1 (en) * 2007-08-02 2012-06-21 Alexandre Terrenoire Actives-comprising polymer networks, processes for producing them, and their use
RU2478285C2 (en) * 2007-08-02 2013-04-10 Басф Се Active polymer-containing mesh structures, methods for production and use thereof
US8653004B2 (en) 2007-08-02 2014-02-18 Basf Se Actives-comprising polymer networks, processes for producing them, and their use

Also Published As

Publication number Publication date
AT336891B (en) 1977-05-25
DE2528068A1 (en) 1976-01-08
NL7507704A (en) 1975-12-30
SE429049B (en) 1983-08-08
ZA754096B (en) 1976-05-26
CA1097448A (en) 1981-03-10
IE41567B1 (en) 1980-01-30
SE7507025L (en) 1975-12-29
NZ177941A (en) 1978-06-20
JPS51125142A (en) 1976-11-01
AU8248775A (en) 1977-01-06
DK152740B (en) 1988-05-02
JPS5927766B2 (en) 1984-07-07
DK152740C (en) 1988-10-10
FR2276063B1 (en) 1978-07-28
CH616694A5 (en) 1980-04-15
AU498575B2 (en) 1979-03-15
IL47577A (en) 1978-08-31
BE830653A (en) 1975-12-29
DE2528068C2 (en) 1989-03-16
FR2276063A1 (en) 1976-01-23
ATA486875A (en) 1976-09-15
ES438862A1 (en) 1977-02-01
IE41567L (en) 1975-12-27
IL47577A0 (en) 1975-08-31
DK273175A (en) 1975-12-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930625