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JPS5530440A - Production of hollow fiber - Google Patents

Production of hollow fiber

Info

Publication number
JPS5530440A
JPS5530440A JP10217578A JP10217578A JPS5530440A JP S5530440 A JPS5530440 A JP S5530440A JP 10217578 A JP10217578 A JP 10217578A JP 10217578 A JP10217578 A JP 10217578A JP S5530440 A JPS5530440 A JP S5530440A
Authority
JP
Japan
Prior art keywords
solution
cellulose ester
acid
solvent containing
major component
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
JP10217578A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Akihiko Niina
Noriaki Kaneko
Akira Fukutome
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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Priority to JP10217578A priority Critical patent/JPS5530440A/en
Publication of JPS5530440A publication Critical patent/JPS5530440A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: A cellulose ester solution in a solvent containing acetone as the major component are extruded out of annular slits and simultaneously a specific liquid is introduced inside the hollow part, thus producing said hollow fiber of cellulose ester capable of selectively separating substances with high stability through high- speed processes.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent containing acetone as the major component and the solution is extruded out of spinnerets with annular slits. At the same time, isopropylmyristic acid or its solution is injected into the hollow part of the linearly extruded dope as the core ingredient. The content of the isopropylmyristic acid in the solution is over 50% and a liquid that is uniformly miscible with the acid and has a high molecular weight, such as isopropanol, is added thereto.
EFFECT: The stable spinning operation can be done even at a speed of 150m/min and the maximum reaches 180m/min.
COPYRIGHT: (C)1980,JPO&Japio
JP10217578A 1978-08-22 1978-08-22 Production of hollow fiber Pending JPS5530440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10217578A JPS5530440A (en) 1978-08-22 1978-08-22 Production of hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10217578A JPS5530440A (en) 1978-08-22 1978-08-22 Production of hollow fiber

Publications (1)

Publication Number Publication Date
JPS5530440A true JPS5530440A (en) 1980-03-04

Family

ID=14320341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10217578A Pending JPS5530440A (en) 1978-08-22 1978-08-22 Production of hollow fiber

Country Status (1)

Country Link
JP (1) JPS5530440A (en)

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