Title:
HOLLOW FIBER MEMBRANE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/159305
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a drawing method for obtaining a reduced diameter hollow fiber membrane using a simple drawing process with which hollow fiber collapse (flattening) is limited. The present invention relates to a hollow fiber membrane manufacturing method that reduces diameter by drawing. The hollow fiber membrane manufacturing method is provided with a step for drawing the hollow fibers, which have undergone a spinning step, to reduce the diameter thereof using a grooved roll.
Inventors:
IWAI KENTA (JP)
ISHIZAKI TOSHIYUKI (JP)
ISHIZAKI TOSHIYUKI (JP)
Application Number:
PCT/JP2016/060812
Publication Date:
October 06, 2016
Filing Date:
March 31, 2016
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D69/08; D01D5/24; D02J1/22
Domestic Patent References:
| WO2000077282A1 | 2000-12-21 | |||
| WO2013146795A1 | 2013-10-03 |
Foreign References:
| JP2002301341A | 2002-10-15 | |||
| JP2003213538A | 2003-07-30 | |||
| JPH02210013A | 1990-08-21 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P. C. (JP)
Patent business corporation glory patent firm (JP)
Patent business corporation glory patent firm (JP)
Download PDF: