JPS5559804A - Selectively permeable composite membrane and preparation thereof - Google Patents

Selectively permeable composite membrane and preparation thereof

Info

Publication number
JPS5559804A
JPS5559804A JP13315678A JP13315678A JPS5559804A JP S5559804 A JPS5559804 A JP S5559804A JP 13315678 A JP13315678 A JP 13315678A JP 13315678 A JP13315678 A JP 13315678A JP S5559804 A JPS5559804 A JP S5559804A
Authority
JP
Japan
Prior art keywords
membrane
formula
polymer
composite membrane
water
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.)
Granted
Application number
JP13315678A
Other languages
Japanese (ja)
Other versions
JPS6159763B2 (en
Inventor
Hiromasa Minematsu
Takeyuki Kawaguchi
Yutaka Takeya
Yuzuru Hayashi
Shigeyoshi Hara
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP13315678A priority Critical patent/JPS5559804A/en
Publication of JPS5559804A publication Critical patent/JPS5559804A/en
Publication of JPS6159763B2 publication Critical patent/JPS6159763B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01D71/28—Polymers of vinyl aromatic compounds
    • B01D71/281—Polystyrene
    • 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
    • B01D71/28—Polymers of vinyl aromatic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To obtain the reverse osmosis composite membrane with excellent selective permeability, water permeability, chemical resistance, heat resistance, anti- bacterial property and the like by cross-linking with a specific compound a membrane mainly comprising hydroxystyrene type polymer on microporous support membrane. CONSTITUTION:On a microporous support membrane of which surface pore size is generally about 100-1000Angstrom , for example, polysulphone membrane, is coated a solution which dissolves a hydroxstyrene type polymer A of the formula I containing polyhydroxy unit (e.g. o-hydroxystyrene structural unit) in a concentration of at least 30mol% of the total repeating units and a compound (e.g. HCHO) capable of reacting with the structural portion of the formula II within the formula I at more than one functional portion. Then said polymer A is cross-linked by methods such as heat treatment and the like to prepare a selectively permeable composite membrane. The polymer A is one which dissolves in more than one medium selected from water and water-compatible organic solvents of boiling points below 120 deg.C (e.g. methanol) in a concentration of 0.1g/100c.c. or higher.
JP13315678A 1978-10-31 1978-10-31 Selectively permeable composite membrane and preparation thereof Granted JPS5559804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13315678A JPS5559804A (en) 1978-10-31 1978-10-31 Selectively permeable composite membrane and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13315678A JPS5559804A (en) 1978-10-31 1978-10-31 Selectively permeable composite membrane and preparation thereof

Publications (2)

Publication Number Publication Date
JPS5559804A true JPS5559804A (en) 1980-05-06
JPS6159763B2 JPS6159763B2 (en) 1986-12-18

Family

ID=15098002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13315678A Granted JPS5559804A (en) 1978-10-31 1978-10-31 Selectively permeable composite membrane and preparation thereof

Country Status (1)

Country Link
JP (1) JPS5559804A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3297218B1 (en) 2012-08-28 2020-10-21 Delos Living, LLC Environmental control system and method of operation such system
EP3504942A4 (en) 2016-08-24 2020-07-15 Delos Living LLC Systems, methods and articles for enhancing wellness associated with habitable environments

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49117370A (en) * 1973-03-13 1974-11-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49117370A (en) * 1973-03-13 1974-11-09

Also Published As

Publication number Publication date
JPS6159763B2 (en) 1986-12-18

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