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

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/671Unsaturated compounds having only one group containing active hydrogen
    • 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
    • A01N25/00Biocides, 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
    • A01N25/08Biocides, 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
    • A01N25/10Macromolecular compounds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605Excipients; Inactive ingredients
    • A61K9/1629Organic macromolecular compounds
    • A61K9/1635Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/2027Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/225Mixtures of macromolecular compounds
    • 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/46Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • 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
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14Macromolecular materials
    • A61L27/16Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/015Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/048Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating air treating gels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/44Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80Block polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular 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
    • C08F290/06Polymers provided for in subclass C08G
    • C08F290/062Polyethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F299/00Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
    • C08F299/02Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
    • C08F299/06Macromolecular 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
    • 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
    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404Biocides, antimicrobial agents, antiseptic agents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2210/00Compositions for preparing hydrogels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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
DE2862045D1 (en) * 1977-07-20 1982-11-11 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
ATA486875A (en) 1976-09-15
JPS5927766B2 (en) 1984-07-07
FR2276063B1 (en) 1978-07-28
CH616694A5 (en) 1980-04-15
DK152740C (en) 1988-10-10
JPS51125142A (en) 1976-11-01
DE2528068C2 (en) 1989-03-16
AT336891B (en) 1977-05-25
FR2276063A1 (en) 1976-01-23
IL47577A0 (en) 1975-08-31
AU8248775A (en) 1977-01-06
NL7507704A (en) 1975-12-30
SE7507025L (en) 1975-12-29
CA1097448A (en) 1981-03-10
DK152740B (en) 1988-05-02
BE830653A (en) 1975-12-29
IL47577A (en) 1978-08-31
DK273175A (en) 1975-12-28
IE41567B1 (en) 1980-01-30
SE429049B (en) 1983-08-08
DE2528068A1 (en) 1976-01-08
ZA754096B (en) 1976-05-26
AU498575B2 (en) 1979-03-15
ES438862A1 (en) 1977-02-01
NZ177941A (en) 1978-06-20
IE41567L (en) 1975-12-27

Similar Documents

Publication Publication Date Title
GB1511563A (en) Water-insoluble hydrophilic copolymers
GB2058802B (en) Hydrophilic monomer treated microporous films
DK178583D0 (en) PREPARING RELEASE PREPARATIONS
ES2058554T3 (en) USE OF SELECTED ANPHYPHILE COPOLYMERS IN LEATHER TREATMENT.
IL49028A (en) Water-soluble, polymerized, crosslinked, stromal-free hemoglobin,process for preparing the same and pharmaceutical composition containing the same
GB1537448A (en) Vascular prostheses and process for production thereof
CA2052783A1 (en) Ocular implants and methods for their manufacture
DE68924307D1 (en) Liquid catalyst component, this component-containing catalyst system and process for the production of ethylene-alpha-olefin copolymers by means of this catalyst system.
NL7606561A (en) PROCESS FOR THE PREPARATION OF HYDROPHILIC POLYMERS AND ARTICLES MADE UNDER THE APPLICATION OF THE POLYMERS PREPARED THEREFORE.
DE3871176D1 (en) MICRO-ENCAPSULATION OF BIOLOGICALLY ACTIVE MATERIAL.
GB8907740D0 (en) Porous articles
GB1378630A (en) Biocompatible articles including polymeric membeanes having per meability to gases and uses thereof
IT7848251A0 (en) IMPROVEMENT IN THE PROCEDURES FOR THE PRODUCTION OF GRAFT COPOLYMERS FROM UNSATURATED MONOMERS AND POLYOLS, AZO DIESTERS AND THE PRODUCT OBTAINED
DE68920777T2 (en) Copolymers containing fluorine, process for their preparation and crosslinking compositions.
EP0257632A3 (en) Cross-linked polymers and process for their preparation
IL47667A (en) Non-antigenic non-thrombogenic infection-resistant grafts from umbilical cord vessels and process for preparing the
DE3064855D1 (en) Vinylpyrrolidone polymers, their preparation, their use for preparing blood plasma substitutes and these blood plasma substitutes
NL7602722A (en) PROCESS FOR THE PREPARATION OF ENTCOPOLYMERS AND ARTICLES MADE UNDER THE APPLICATION OF THE COPOLYMERS PREPARED.
IT1030092B (en) GRAFTED COPOLYMERS, HYDROPHILIC THERMOPLASTICS AND PROCEDURE FOR THEIR PREPARATION
CA985448A (en) Process for producing of articles from hydrophilic polymers appropriate for repeated or long-term contact with living tissue or mucous membrane
JPS5240590A (en) Graft copolymer of xanthomonas hydrophilic colloid and process for preparing the same
AU459630B2 (en) Halogen containing polyether polymer withan ehtylenically unsaturated monomer graft, and process for making it
AU3475171A (en) Method for producing of articles from hydrophilic polymers appropriate for repeated or longterm contact with living tissue or mucous membrane
FR2088597A5 (en) Grafted silicone resins - with vinyl pyrrolidone by heating
JPS5225895A (en) Process for preparing graft copolymers

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