WO1990011820A3 - Porous articles - Google Patents

Porous articles Download PDF

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Publication number
WO1990011820A3
WO1990011820A3 PCT/GB1990/000531 GB9000531W WO9011820A3 WO 1990011820 A3 WO1990011820 A3 WO 1990011820A3 GB 9000531 W GB9000531 W GB 9000531W WO 9011820 A3 WO9011820 A3 WO 9011820A3
Authority
WO
WIPO (PCT)
Prior art keywords
porous
hydrophobic
membrane
hydrophilic
polymer
Prior art date
Application number
PCT/GB1990/000531
Other languages
French (fr)
Other versions
WO1990011820A2 (en
Inventor
Dennis Keith Gilding
Christopher Louis Ives
Mark Michael Galusza
Simon Ashley Dixon
Ian Philip Middleton
Original Assignee
Beam Tech Ltd
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 Beam Tech Ltd filed Critical Beam Tech Ltd
Publication of WO1990011820A2 publication Critical patent/WO1990011820A2/en
Publication of WO1990011820A3 publication Critical patent/WO1990011820A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • B01D67/00111—Polymer pretreatment in the casting solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • 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
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • 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
    • A61L15/425—Porous materials, e.g. foams or sponges
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/06—Specific viscosities of materials involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/0283—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/38—Hydrophobic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/48—Antimicrobial properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Epidemiology (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A porous article, for example a membrane, which comprises a porous hydrophobic polymer body whereof the surfaces including those within the pores have integrally incorporated therein a hydrophilic polymer which has been co-precipitated with the hydrophobic polymer under conditions such that substantially all of the hydrophilic polymer is at said surface and provides a hydrophilic surface throughout the hydrophobic body. The porous article may be a membrane, in particular for use as a wound dressing. Adhesives for wound dressings are also disclosed.
PCT/GB1990/000531 1989-04-06 1990-04-06 Porous articles WO1990011820A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898907740A GB8907740D0 (en) 1989-04-06 1989-04-06 Porous articles
GB8907740.8 1989-04-06

Publications (2)

Publication Number Publication Date
WO1990011820A2 WO1990011820A2 (en) 1990-10-18
WO1990011820A3 true WO1990011820A3 (en) 1990-11-29

Family

ID=10654547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000531 WO1990011820A2 (en) 1989-04-06 1990-04-06 Porous articles

Country Status (6)

Country Link
EP (1) EP0466794A1 (en)
CN (1) CN1047317A (en)
AU (1) AU5446190A (en)
GB (1) GB8907740D0 (en)
IN (1) IN173502B (en)
WO (1) WO1990011820A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9102089D0 (en) * 1991-01-31 1991-03-13 Johnson & Johnson Medical Net wound dressings
DE69533227T2 (en) * 1994-10-28 2005-07-07 Advanced Medical Solutions Ltd., Winsford REHYDRATED HYDROGEL
DE69738823D1 (en) 1996-08-26 2008-08-21 Massachusetts Inst Technology PREPARATION OF POLYMERIC OBJECTS WITH HYDROPHILIC SURFACE
AU771431B2 (en) * 1996-08-26 2004-03-25 Massachusetts Institute Of Technology Polymeric membranes and polymer articles having hydrophilic surface and method for their preparation
CA2196478C (en) * 1997-01-31 2003-01-28 Takeshi Matsuura Membrane composition and method of preparation
EP1501625A1 (en) * 2002-05-03 2005-02-02 Pall Corporation Blended polymer membrane media for treating aqueous fluids
JP4189960B2 (en) * 2003-05-28 2008-12-03 日東電工株式会社 Hydrophilized porous membrane and method for producing the same
US7717273B2 (en) * 2006-05-24 2010-05-18 Millipore Corporation Membrane surface modification by radiation-induced polymerization
KR100961282B1 (en) 2008-03-14 2010-06-03 포항공과대학교 산학협력단 Fabricating Method of Membrane Having Hydrophilicity and Hydrophobicity
EP2177603A1 (en) 2008-09-25 2010-04-21 Gambro Lundia AB Device for renal cell expansion
EP2168666A1 (en) 2008-09-25 2010-03-31 Gambro Lundia AB Irradiated membrane for cell expansion
EP2168614B1 (en) 2008-09-25 2012-02-15 Gambro Lundia AB Hybrid bioartificial kidney
EP2168668A1 (en) 2008-09-25 2010-03-31 Gambro Lundia AB Membrane for cell expansion
CN105754302B (en) * 2014-08-12 2018-09-25 东丽先端材料研究开发（中国）有限公司 The micro- porous membrane of polyester of the segment containing aromatic series
TWI615275B (en) * 2016-11-14 2018-02-21 國立高雄大學 Amphiphilic film structure having hydrophilic and hydrophobic properties

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB868157A (en) * 1957-12-19 1961-05-17 Union Carbide Corp Improvements in and relating to pressure-sensitive adhesives
DE1904549A1 (en) * 1968-02-05 1969-08-28 Minnesota Mining & Mfg Sprayable acrylate adhesive
DE2364125A1 (en) * 1972-12-21 1974-07-11 Teijin Ltd ADHESIVE COMPOSITIONS
GB1539131A (en) * 1976-07-02 1979-01-24 Minnesota Mining & Mfg Pressure-sensitive adhesive tape employing moisture resistant adhesive
EP0068696A2 (en) * 1981-06-17 1983-01-05 Smith and Nephew Associated Companies p.l.c. Cured pressure sensitive adhesives
EP0082433A2 (en) * 1981-12-17 1983-06-29 Hoechst Aktiengesellschaft Hydrophilic asymmetrical macroporous membrane of a synthetic polymerizate
EP0090483A2 (en) * 1982-02-05 1983-10-05 Pall Corporation Polyamide membrane and process for its production
EP0120265A1 (en) * 1983-02-18 1984-10-03 Daicel Chemical Industries, Ltd. High-solid self-adhesive and process for the production thereof
EP0184233A2 (en) * 1984-11-13 1986-06-11 Thermedics, Inc. Drug dispensing wound dressing
JPS61257203A (en) * 1985-05-10 1986-11-14 Terumo Corp Hydrophilic porous membrane and its preparation
EP0305787A1 (en) * 1987-08-31 1989-03-08 GAMBRO DIALYSATOREN GMBH & CO. KG A process for manufacturing permselective asymmetric membranes suitable for haemodialysis and the so prepared membranes
EP0327328A2 (en) * 1988-02-01 1989-08-09 PolyMedica Industries, Inc. Adhesive-faced porous absorbent sheet and method of making same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB868157A (en) * 1957-12-19 1961-05-17 Union Carbide Corp Improvements in and relating to pressure-sensitive adhesives
DE1904549A1 (en) * 1968-02-05 1969-08-28 Minnesota Mining & Mfg Sprayable acrylate adhesive
DE2364125A1 (en) * 1972-12-21 1974-07-11 Teijin Ltd ADHESIVE COMPOSITIONS
GB1539131A (en) * 1976-07-02 1979-01-24 Minnesota Mining & Mfg Pressure-sensitive adhesive tape employing moisture resistant adhesive
EP0068696A2 (en) * 1981-06-17 1983-01-05 Smith and Nephew Associated Companies p.l.c. Cured pressure sensitive adhesives
EP0082433A2 (en) * 1981-12-17 1983-06-29 Hoechst Aktiengesellschaft Hydrophilic asymmetrical macroporous membrane of a synthetic polymerizate
EP0090483A2 (en) * 1982-02-05 1983-10-05 Pall Corporation Polyamide membrane and process for its production
EP0120265A1 (en) * 1983-02-18 1984-10-03 Daicel Chemical Industries, Ltd. High-solid self-adhesive and process for the production thereof
EP0184233A2 (en) * 1984-11-13 1986-06-11 Thermedics, Inc. Drug dispensing wound dressing
JPS61257203A (en) * 1985-05-10 1986-11-14 Terumo Corp Hydrophilic porous membrane and its preparation
EP0305787A1 (en) * 1987-08-31 1989-03-08 GAMBRO DIALYSATOREN GMBH & CO. KG A process for manufacturing permselective asymmetric membranes suitable for haemodialysis and the so prepared membranes
EP0327328A2 (en) * 1988-02-01 1989-08-09 PolyMedica Industries, Inc. Adhesive-faced porous absorbent sheet and method of making same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Volume 11, No. 115 (C-415) (2562) 10 April 1987 & JP, A, 61257203 (Terumo Corp.) 14 November 1986 see the Abstract *
PATENT ABSTRACTS OF JAPAN, Volume 12, No. 338 (C-527) (3185) 12 September 1988 & JP, A, 6397202 (Toray Ind Inc.) 27 April 1988 see the Abstract *

Also Published As

Publication number Publication date
IN173502B (en) 1994-05-21
CN1047317A (en) 1990-11-28
WO1990011820A2 (en) 1990-10-18
EP0466794A1 (en) 1992-01-22
AU5446190A (en) 1990-11-05
GB8907740D0 (en) 1989-05-17

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