GB8907740D0 - Porous articles - Google Patents

Porous articles

Info

Publication number
GB8907740D0
GB8907740D0 GB898907740A GB8907740A GB8907740D0 GB 8907740 D0 GB8907740 D0 GB 8907740D0 GB 898907740 A GB898907740 A GB 898907740A GB 8907740 A GB8907740 A GB 8907740A GB 8907740 D0 GB8907740 D0 GB 8907740D0
Authority
GB
United Kingdom
Prior art keywords
porous
hydrophobic
membrane
hydrophilic
polymer
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.)
Pending
Application number
GB898907740A
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.)
BEAM TECH Ltd
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
Priority to GB898907740A priority Critical patent/GB8907740D0/en
Publication of GB8907740D0 publication Critical patent/GB8907740D0/en
Priority to IN252MA1990 priority patent/IN173502B/en
Priority to AU54461/90A priority patent/AU5446190A/en
Priority to PCT/GB1990/000531 priority patent/WO1990011820A2/en
Priority to CN90103941A priority patent/CN1047317A/en
Priority to EP90906313A priority patent/EP0466794A1/en
Pending legal-status Critical Current

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

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.
GB898907740A 1989-04-06 1989-04-06 Porous articles Pending GB8907740D0 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB898907740A GB8907740D0 (en) 1989-04-06 1989-04-06 Porous articles
IN252MA1990 IN173502B (en) 1989-04-06 1990-04-05
AU54461/90A AU5446190A (en) 1989-04-06 1990-04-06 Porous articles
PCT/GB1990/000531 WO1990011820A2 (en) 1989-04-06 1990-04-06 Porous articles
CN90103941A CN1047317A (en) 1989-04-06 1990-04-06 porous article
EP90906313A EP0466794A1 (en) 1989-04-06 1990-04-06 Porous articles

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB8907740D0 true GB8907740D0 (en) 1989-05-17

Family

ID=10654547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB898907740A Pending GB8907740D0 (en) 1989-04-06 1989-04-06 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
WO1996013285A1 (en) * 1994-10-28 1996-05-09 Innovative Technologies Limited Dehydrated hydrogels
CA2263582C (en) * 1996-08-26 2004-03-30 Massachusetts Institute Of Technology Polymeric membranes and polymer articles having hydrophilic surface and method for their preparation
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
WO2003092873A1 (en) * 2002-05-03 2003-11-13 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
EP2168668A1 (en) 2008-09-25 2010-03-31 Gambro Lundia AB Membrane for cell expansion
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
ATE545440T1 (en) 2008-09-25 2012-03-15 Gambro Lundia Ab HYBRID BIOLOGICAL ARTIFICIAL KIDNEY
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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1212539A (en) * 1957-12-19 1960-03-24 Union Carbide Corp Pressure sensitive adhesive compositions
DE1904549C3 (en) * 1968-02-05 1978-09-07 Minnesota Mining And Manufacturing Co., Saint Paul, Minn. (V.St.A.) Sprayable adhesive mass
US4074004A (en) * 1976-07-02 1978-02-14 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive tape employing moisture resistant acrylate-base copolymer adhesive
GB2102011B (en) * 1981-06-17 1984-12-19 Smith & Nephew Ass Electron beam cured acrylic adhesive layer
DE3149976A1 (en) * 1981-12-17 1983-06-30 Hoechst Ag, 6230 Frankfurt MACROPOROUS ASYMMETRIC HYDROPHILE MEMBRANE MADE OF SYNTHETIC POLYMER
DE3364804D1 (en) * 1982-02-05 1986-09-04 Pall Corp Polyamide membrane and process for its production
JPS59152971A (en) * 1983-02-18 1984-08-31 Daicel Chem Ind Ltd Pressure-sensitive adhesive having high solid content and its preparation
US4614787A (en) * 1984-11-13 1986-09-30 Thermedics, Inc. Drug dispensing wound dressing
JPS61257203A (en) * 1985-05-10 1986-11-14 Terumo Corp Hydrophilic porous membrane and its preparation
SE460521B (en) * 1987-08-31 1989-10-23 Gambro Dialysatoren PERMSELECTIVE ASYMMETRIC MEMBRANE AND PROCEDURES FOR ITS PREPARATION
US4906240A (en) * 1988-02-01 1990-03-06 Matrix Medica, Inc. Adhesive-faced porous absorbent sheet and method of making same

Also Published As

Publication number Publication date
AU5446190A (en) 1990-11-05
CN1047317A (en) 1990-11-28
WO1990011820A3 (en) 1990-11-29
WO1990011820A2 (en) 1990-10-18
IN173502B (en) 1994-05-21
EP0466794A1 (en) 1992-01-22

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