JPS551887A - Preparing membrane by removing component from multiple component material - Google Patents

Preparing membrane by removing component from multiple component material

Info

Publication number
JPS551887A
JPS551887A JP4317879A JP4317879A JPS551887A JP S551887 A JPS551887 A JP S551887A JP 4317879 A JP4317879 A JP 4317879A JP 4317879 A JP4317879 A JP 4317879A JP S551887 A JPS551887 A JP S551887A
Authority
JP
Japan
Prior art keywords
homopolymer
copolymer
component
hydrophilic
mixed
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
JP4317879A
Other languages
Japanese (ja)
Other versions
JPS5752084B2 (en
Inventor
Hiromichi Kawai
Juichi Munemaru
Norihide Fujimoto
Tetsuya Kiguchi
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP4317879A priority Critical patent/JPS551887A/en
Publication of JPS551887A publication Critical patent/JPS551887A/en
Publication of JPS5752084B2 publication Critical patent/JPS5752084B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To provide a semipermeable membrane with good salt exclusion and solvent permeability, a polymer consisting of hydrophilic polymer and hydrophobic or crystalline hydrophilic polymer is mixed with a specific amount of hydrophilic homopolymer to form a film or the like, and the homopolymer is removed by extraction.
CONSTITUTION: A crystalline hydrophilic polymer component such as poly ε capramide and hydrophilic copolymer component such as polyacrylamide are blocked or grafted to form a copolymer. The resulted copolymer is mixed with a homopolymer such as polyacrylamide so that the total hydrophilic polymer component becomes in 20 to 80 molar % and the mixed polymer is formed into a flat film or hollow fibers. Then, the homopolymer is extracted by use of an agent such as warm water that is inactive to the copolymer. The process, thus, provides a flat film or hollow fibers useful for dialysis, ultrafilteration, or back osmosis equipments.
COPYRIGHT: (C)1980,JPO&Japio
JP4317879A 1979-04-09 1979-04-09 Preparing membrane by removing component from multiple component material Granted JPS551887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4317879A JPS551887A (en) 1979-04-09 1979-04-09 Preparing membrane by removing component from multiple component material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4317879A JPS551887A (en) 1979-04-09 1979-04-09 Preparing membrane by removing component from multiple component material

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP3279072A Division JPS5424987B2 (en) 1972-04-01 1972-04-01

Publications (2)

Publication Number Publication Date
JPS551887A true JPS551887A (en) 1980-01-09
JPS5752084B2 JPS5752084B2 (en) 1982-11-05

Family

ID=12656622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4317879A Granted JPS551887A (en) 1979-04-09 1979-04-09 Preparing membrane by removing component from multiple component material

Country Status (1)

Country Link
JP (1) JPS551887A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5892411A (en) * 1981-11-30 1983-06-01 Asahi Medical Kk Semi-permeable membrane and module using same
JPS59193102A (en) * 1983-04-16 1984-11-01 Asahi Medical Kk Selectively permeable hollow yarn

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218793A (en) * 1983-05-27 1984-12-10 富士通株式会社 Method of mounting dip type ic
JPS619796U (en) * 1984-06-25 1986-01-21 東京山一電機株式会社 integrated circuit socket

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5892411A (en) * 1981-11-30 1983-06-01 Asahi Medical Kk Semi-permeable membrane and module using same
JPH0143562B2 (en) * 1981-11-30 1989-09-21 Asahi Medical Co
JPS59193102A (en) * 1983-04-16 1984-11-01 Asahi Medical Kk Selectively permeable hollow yarn
JPH0475052B2 (en) * 1983-04-16 1992-11-27

Also Published As

Publication number Publication date
JPS5752084B2 (en) 1982-11-05

Similar Documents

Publication Publication Date Title
EP0008945A3 (en) Semipermeable composite membrane, process for producing said membrane, and method of desalination using said membrane
JPS5416378A (en) Polysulfone semipermeable membrane
DE2145183B2 (en) Use of copolymers based on acrylonitrile for the production of semi-permeable! Membranes for dialysis or ultrafiltration
JPS5417978A (en) Hydrophilic and porous composite structure and its production
JPS55106243A (en) Preparation of microporous polymer membrane
JPS551887A (en) Preparing membrane by removing component from multiple component material
ES8402237A1 (en) Sea water desalination process.
JPS51115285A (en) Semi-permeable membrane and production thereof
JPS536627A (en) Hollow fibers
JPS5566935A (en) Production of porous vinylidene fluoride resin membrane
DE1817542A1 (en) Method of making a semi-permeable membrane
JPS5249248A (en) Reverse osmotic treatment of water-soluble electro-deposition coating
JPS5361576A (en) Preparation of sterilized dialyzer
JPS5278291A (en) Preparation of polyelectrolyte complexes and manufacture of membranes therefrom
JPS5750508A (en) Permselective membrane and its production
JPS57159508A (en) Preparation of selective permeable membrane
GB2011828B (en) Semipermeable membranes
JPS56136824A (en) Preparation of selectively permeable film
JPS5534109A (en) Polyethylene glycol composition
JPS5715809A (en) Solid-liquid separating agent and its production
JPS5439952A (en) Method of producing purified water
JPS56139105A (en) Semipermeable composite membrane and its manufacture
Cabasso New polymeric membranes containing phosphonate ester groups for water desalination
JPS55132605A (en) Preparation of semi-permeable membrane
JPS5691814A (en) Manufacture of ultrafiltration film