JPS54117380A - Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof - Google Patents

Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof

Info

Publication number
JPS54117380A
JPS54117380A JP2572278A JP2572278A JPS54117380A JP S54117380 A JPS54117380 A JP S54117380A JP 2572278 A JP2572278 A JP 2572278A JP 2572278 A JP2572278 A JP 2572278A JP S54117380 A JPS54117380 A JP S54117380A
Authority
JP
Japan
Prior art keywords
compsn
pva type
type polymer
permeable membrane
selectively permeable
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
JP2572278A
Other languages
Japanese (ja)
Other versions
JPS5722602B2 (en
Inventor
Akinori Sueoka
Takehiko Okamoto
Akio Omori
Shuji Kawai
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP2572278A priority Critical patent/JPS54117380A/en
Publication of JPS54117380A publication Critical patent/JPS54117380A/en
Publication of JPS5722602B2 publication Critical patent/JPS5722602B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title membrane with high water permeability, press. resistance, flexibility and superior chemical resistance by subjecting a PVA type polymer compsn. consisting of a polyalkylene glycol with a specific average MW and a PVA type polymer to intramolecular and intermolecular acetal formation.
CONSTITUTION: A PVA type polymer compsn. is prepared contg. 50W150 wt% of a PAG with an average MW of 600W3000, e.g. polyethylene glycol to a PVA type polymer and satisfying the critical blending ratio of PVA and PAG 0.80≤CBR≤ 1.00. The compsn. is solidified, e.g. by extruding a soln. of the compsn. in dimethylsulfoxide, etc. into a solidifying liquid such as lower alcohol. The solidified compsn. is then subjected to intramolecular acetal formation with 10W300 g/l of a monoaldehyde such as CH3CHO and to intermolecular acetal formation with 0.1W 100 g/l of a dialdehyde such as glutaraldehyde, giving a PVA type selectively permeable membrane.
COPYRIGHT: (C)1979,JPO&Japio
JP2572278A 1978-03-06 1978-03-06 Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof Granted JPS54117380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2572278A JPS54117380A (en) 1978-03-06 1978-03-06 Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2572278A JPS54117380A (en) 1978-03-06 1978-03-06 Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof

Publications (2)

Publication Number Publication Date
JPS54117380A true JPS54117380A (en) 1979-09-12
JPS5722602B2 JPS5722602B2 (en) 1982-05-14

Family

ID=12173684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2572278A Granted JPS54117380A (en) 1978-03-06 1978-03-06 Polyvinyl alcohol type selectively permeable membrane with superior mechanical performance and production thereof

Country Status (1)

Country Link
JP (1) JPS54117380A (en)

Also Published As

Publication number Publication date
JPS5722602B2 (en) 1982-05-14

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