JPS57159508A - Preparation of selective permeable membrane - Google Patents

Preparation of selective permeable membrane

Info

Publication number
JPS57159508A
JPS57159508A JP4430281A JP4430281A JPS57159508A JP S57159508 A JPS57159508 A JP S57159508A JP 4430281 A JP4430281 A JP 4430281A JP 4430281 A JP4430281 A JP 4430281A JP S57159508 A JPS57159508 A JP S57159508A
Authority
JP
Japan
Prior art keywords
membrane
swelling agent
aromatic polyamide
dope
selective 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
JP4430281A
Other languages
Japanese (ja)
Other versions
JPS6151928B2 (en
Inventor
Masahiro Kamibayashi
Takashi Akiyama
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial 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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP4430281A priority Critical patent/JPS57159508A/en
Publication of JPS57159508A publication Critical patent/JPS57159508A/en
Publication of JPS6151928B2 publication Critical patent/JPS6151928B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the selective permeable membrane having extremely small molecular wt. fractionating property compared to a conventional aromatic polyamide selective permeable membrane by containing a specified org. swelling agent and a specified inorg. swelling agent in aromatic polyamide in a specific ratio.
CONSTITUTION: An aromatic polyamide is added to and dissolved in a dope solvent in which an inorg. swelling agent is preliminarily dissolved and, to the resulting solution, an org. swelling agent is subsequently added and the obtained solution stirred at a room temp. or, according to necessity, while it is heated to a temp. of about 80W150°C to form a uniform dope. This dope is coated on a support base material and the coatd base material is immersed in a coagulating solvent for coagulating said aromatic polyamide to coagulate the polyamide to form a membrane. By this method, because poliamide is rapidly coagulated and the surface layer of the membrane is formed rapidly and uniformly, the skin layer thereof is formed into a microporous structure with extremely narrow pore size distribution width and fractionating property against molecular wt. of a solute is high and the membrane having the high exhaustive ratio of a solute with a certain molecular wt. or more is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP4430281A 1981-03-25 1981-03-25 Preparation of selective permeable membrane Granted JPS57159508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4430281A JPS57159508A (en) 1981-03-25 1981-03-25 Preparation of selective permeable membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4430281A JPS57159508A (en) 1981-03-25 1981-03-25 Preparation of selective permeable membrane

Publications (2)

Publication Number Publication Date
JPS57159508A true JPS57159508A (en) 1982-10-01
JPS6151928B2 JPS6151928B2 (en) 1986-11-11

Family

ID=12687699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4430281A Granted JPS57159508A (en) 1981-03-25 1981-03-25 Preparation of selective permeable membrane

Country Status (1)

Country Link
JP (1) JPS57159508A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014036946A (en) * 2012-08-20 2014-02-27 Unitika Ltd Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same
WO2014092198A1 (en) * 2012-12-14 2014-06-19 東レ株式会社 Production method for semipermeable membrane, and semipermeable membrane
WO2015093080A1 (en) * 2013-12-16 2015-06-25 東レ株式会社 Semipermeable membrane manufacturing method and semipermeable membrane
JP2016193430A (en) * 2016-05-13 2016-11-17 ユニチカ株式会社 Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0286630U (en) * 1988-12-23 1990-07-09

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014036946A (en) * 2012-08-20 2014-02-27 Unitika Ltd Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same
WO2014092198A1 (en) * 2012-12-14 2014-06-19 東レ株式会社 Production method for semipermeable membrane, and semipermeable membrane
JPWO2015093080A1 (en) * 2012-12-14 2017-03-16 東レ株式会社 Method for producing semipermeable membrane, and semipermeable membrane
WO2015093080A1 (en) * 2013-12-16 2015-06-25 東レ株式会社 Semipermeable membrane manufacturing method and semipermeable membrane
CN105828922A (en) * 2013-12-16 2016-08-03 东丽株式会社 Semipermeable membrane manufacturing method and semipermeable membrane
JP2016193430A (en) * 2016-05-13 2016-11-17 ユニチカ株式会社 Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same

Also Published As

Publication number Publication date
JPS6151928B2 (en) 1986-11-11

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