SE7507025L - WATER-SOLUBLE HYDROPHILA COPOLYMERS. - Google Patents
WATER-SOLUBLE HYDROPHILA COPOLYMERS.Info
- Publication number
- SE7507025L SE7507025L SE7507025A SE7507025A SE7507025L SE 7507025 L SE7507025 L SE 7507025L SE 7507025 A SE7507025 A SE 7507025A SE 7507025 A SE7507025 A SE 7507025A SE 7507025 L SE7507025 L SE 7507025L
- Authority
- SE
- Sweden
- Prior art keywords
- copolymers
- water
- hydrophila
- soluble
- hydrophilic
- Prior art date
Links
- 229920001577 copolymer Polymers 0.000 title abstract 3
- 230000000975 bioactive effect Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229920001519 homopolymer Polymers 0.000 abstract 1
- 229920001480 hydrophilic copolymer Polymers 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 239000007943 implant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 210000003462 vein Anatomy 0.000 abstract 1
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.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48374374A | 1974-06-27 | 1974-06-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7507025L true SE7507025L (en) | 1975-12-29 |
SE429049B SE429049B (en) | 1983-08-08 |
Family
ID=23921343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7507025A SE429049B (en) | 1974-06-27 | 1975-06-18 | PROCEDURE FOR PREPARING A WATER-SOLUBLE-HYDROPHILIC GEL |
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) |
Families Citing this family (23)
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 |
DE2725261C2 (en) * | 1977-06-03 | 1986-10-09 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | Transparent liquid dressing material, its manufacture and use |
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 |
JPS60199012A (en) * | 1984-03-24 | 1985-10-08 | Toomee Sangyo Kk | Hydrogel base |
US4911691A (en) * | 1984-09-21 | 1990-03-27 | Menlo Care, Inc. | Assembly for adminstering IV solution |
US4883699A (en) * | 1984-09-21 | 1989-11-28 | Menlo Care, Inc. | Polymeric article having high tensile energy to break when hydrated |
EP0245858B1 (en) * | 1986-05-14 | 1992-07-29 | Takiron Co. Ltd. | Adhesive for percutaneous administration |
US5225473A (en) * | 1987-11-25 | 1993-07-06 | Minnesota Mining And Manufacturing Company | Pressure-sensitive adhesives |
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 |
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 |
DE19908184A1 (en) | 1999-02-25 | 2000-08-31 | Basf Ag | Process for the preparation of aqueous dispersions of copolymers from hydrophilic and hydrophobic monomers and copolymers obtainable therefrom and their uses |
BRPI0814297A2 (en) | 2007-08-02 | 2014-10-14 | Basf Se | PROCESS TO PRODUCE A POLYMERIC NETWORK CONTAINING ACTIVE INGREDIENTS, POLYMERIC NETWORK CONTAINING ACTIVE INGREDIENTS, AND USE OF POLYMERIC NETWORKS CONTAINING ACTIVE INGREDIENTS |
Family Cites Families (6)
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 |
-
1975
- 1975-06-12 CH CH761775A patent/CH616694A5/en not_active IP Right Cessation
- 1975-06-17 DK DK273175A patent/DK152740C/en not_active IP Right Cessation
- 1975-06-18 SE SE7507025A patent/SE429049B/en not_active IP Right Cessation
- 1975-06-24 FR FR7519686A patent/FR2276063A1/en active Granted
- 1975-06-24 DE DE19752528068 patent/DE2528068A1/en active Granted
- 1975-06-24 JP JP50077135A patent/JPS5927766B2/en not_active Expired
- 1975-06-25 ES ES438862A patent/ES438862A1/en not_active Expired
- 1975-06-25 GB GB26942/75A patent/GB1511563A/en not_active Expired
- 1975-06-25 AT AT486875A patent/AT336891B/en not_active IP Right Cessation
- 1975-06-25 CA CA230,168A patent/CA1097448A/en not_active Expired
- 1975-06-26 IE IE1419/75A patent/IE41567B1/en unknown
- 1975-06-26 BE BE157688A patent/BE830653A/en not_active IP Right Cessation
- 1975-06-26 IL IL47577A patent/IL47577A/en unknown
- 1975-06-26 NZ NZ177941A patent/NZ177941A/en unknown
- 1975-06-26 ZA ZA00754096A patent/ZA754096B/en unknown
- 1975-06-27 NL NL7507704A patent/NL7507704A/en not_active Application Discontinuation
- 1975-07-21 AU AU82487/75A patent/AU498575B2/en not_active Expired
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 |
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 |
GB1511563A (en) | 1978-05-24 |
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
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---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7507025-0 Effective date: 19930109 Format of ref document f/p: F |