JPS57119809A - Production of ultrafiltration membrane - Google Patents

Production of ultrafiltration membrane

Info

Publication number
JPS57119809A
JPS57119809A JP56006722A JP672281A JPS57119809A JP S57119809 A JPS57119809 A JP S57119809A JP 56006722 A JP56006722 A JP 56006722A JP 672281 A JP672281 A JP 672281A JP S57119809 A JPS57119809 A JP S57119809A
Authority
JP
Japan
Prior art keywords
water
solvent
production
cyclohexanone
ultrafiltration membrane
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
JP56006722A
Other languages
Japanese (ja)
Inventor
Zenjiro Honda
Hitoshi Tsugatani
Shigeo Makino
Tadaaki Miyano
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.)
Daicel Corp
Original Assignee
Daicel Corp
Daicel Chemical Industries 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 Daicel Corp, Daicel Chemical Industries Ltd filed Critical Daicel Corp
Priority to JP56006722A priority Critical patent/JPS57119809A/en
Publication of JPS57119809A publication Critical patent/JPS57119809A/en
Pending legal-status Critical Current

Links

Landscapes

  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To obtain an ultrafiltration membrane of equally superior performance in the production of a semipermeable membrane for ultrafiltration used for filtration type artificial kidney by changing a part of the solvent compositon of cellulose acetate.
CONSTITUTION: In a known method of casting and filming cellulose acetate by using mixed solvents of dimethylformamide, acetone, water and cyclohexanone, cyclohexanone is substituted with a polar solvent having 2W50% solubility to water ar oridinary temp. Such solvents are, for example, butyl lactate, furfural, methyl ethyl ketone, 2-methoxyethyl acetate, etc. This solvent is added to the mixed solvents at an approximately equal weight to that of the water therein.
COPYRIGHT: (C)1982,JPO&Japio
JP56006722A 1981-01-19 1981-01-19 Production of ultrafiltration membrane Pending JPS57119809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006722A JPS57119809A (en) 1981-01-19 1981-01-19 Production of ultrafiltration membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006722A JPS57119809A (en) 1981-01-19 1981-01-19 Production of ultrafiltration membrane

Publications (1)

Publication Number Publication Date
JPS57119809A true JPS57119809A (en) 1982-07-26

Family

ID=11646145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006722A Pending JPS57119809A (en) 1981-01-19 1981-01-19 Production of ultrafiltration membrane

Country Status (1)

Country Link
JP (1) JPS57119809A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214235A (en) * 1975-07-18 1977-02-03 Osaka Gas Co Ltd Burner flame length control system
JPS5382670A (en) * 1976-12-29 1978-07-21 Toyobo Co Ltd Preparation of semipermeable membrane
JPS55134608A (en) * 1979-04-06 1980-10-20 Daicel Chem Ind Ltd Preparation of semipermeable membrane with selective permeability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214235A (en) * 1975-07-18 1977-02-03 Osaka Gas Co Ltd Burner flame length control system
JPS5382670A (en) * 1976-12-29 1978-07-21 Toyobo Co Ltd Preparation of semipermeable membrane
JPS55134608A (en) * 1979-04-06 1980-10-20 Daicel Chem Ind Ltd Preparation of semipermeable membrane with selective permeability

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