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JPS5277885A - Preparation of semipermeable membranes - Google Patents

Preparation of semipermeable membranes

Info

Publication number
JPS5277885A
JPS5277885A JP15570375A JP15570375A JPS5277885A JP S5277885 A JPS5277885 A JP S5277885A JP 15570375 A JP15570375 A JP 15570375A JP 15570375 A JP15570375 A JP 15570375A JP S5277885 A JPS5277885 A JP S5277885A
Authority
JP
Japan
Prior art keywords
preparation
membrane
semipermeable membranes
render
preparing
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
JP15570375A
Other languages
Japanese (ja)
Other versions
JPS546507B2 (en
Inventor
Minoru Takahashi
Kazuhiko Kamiyoshi
Hiroshi Ogawara
Noriyuki Takeda
Kaoru Yamashita
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP15570375A priority Critical patent/JPS5277885A/en
Publication of JPS5277885A publication Critical patent/JPS5277885A/en
Publication of JPS546507B2 publication Critical patent/JPS546507B2/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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate

Landscapes

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

Abstract

PURPOSE:In preparing a cellulos-base semipermeable membrane, it is intenbed to render it is intended to render it possible to easily prepare the membrane excelling ein permeability by using a mixture of urea (its derivative), an organic carboxylic acid and water as the additive for a solution for preparing the membrane.
JP15570375A 1975-12-24 1975-12-24 Preparation of semipermeable membranes Granted JPS5277885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15570375A JPS5277885A (en) 1975-12-24 1975-12-24 Preparation of semipermeable membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15570375A JPS5277885A (en) 1975-12-24 1975-12-24 Preparation of semipermeable membranes

Publications (2)

Publication Number Publication Date
JPS5277885A true JPS5277885A (en) 1977-06-30
JPS546507B2 JPS546507B2 (en) 1979-03-29

Family

ID=15611661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15570375A Granted JPS5277885A (en) 1975-12-24 1975-12-24 Preparation of semipermeable membranes

Country Status (1)

Country Link
JP (1) JPS5277885A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131983A (en) * 1977-04-22 1978-11-17 Nitto Electric Ind Co Ltd Method of fabricating semipermeable membrane
US4371487A (en) * 1978-02-11 1983-02-01 Toyoboseki Kabushiki Kaisha Process for the production of a hollow fiber semipermeable membrane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53131983A (en) * 1977-04-22 1978-11-17 Nitto Electric Ind Co Ltd Method of fabricating semipermeable membrane
JPS5640605B2 (en) * 1977-04-22 1981-09-22
US4371487A (en) * 1978-02-11 1983-02-01 Toyoboseki Kabushiki Kaisha Process for the production of a hollow fiber semipermeable membrane

Also Published As

Publication number Publication date
JPS546507B2 (en) 1979-03-29

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