FIBER BUNDLE, PRODUCTION METHOD FOR SAME, AND PURIFICATION COLUMN

WIPO Patent Application WO/2021/070857

A1

The present invention addresses the problem of providing a small purification column that has a reduced treated liquid capacity but still achieves low pressure loss and has high adsorptivity. The present invention is a fiber bundle that includes a plurality of porous fibers and satisfies conditions (A)–(E). (A) The porous fibers have a solid shape. (B) The arithmetic average roughness (the dry Ra value) of the surface of the porous fibers when dry is 11–30 nm. (C) The arithmetic average roughness (the wet Ra value) of the surface of the porous fibers when wet is 12–40 nm. (D) The value of the wet Ra value/the dry Ra value is at least 1.05. (E) The linearity of the fiber bundle as represented by (the length of the fiber bundle)/(the length of one porous fiber) is 0.97–1.00.

OSUKA TOMOAKI (JP)
FUJIEDA HIROAKI (JP)
UENO YOSHIYUKI (JP)
SAKAGUCHI HIROKAZU (JP)

PCT/JP2020/037977

April 15, 2021

October 07, 2020

Click for automatic bibliography generation  

TORAY INDUSTRIES (JP)

A61M1/16

JP2017185221A	2017-10-12
JP2005152295A	2005-06-16
JP2005224604A	2005-08-25
JPH11309353A	1999-11-09
JP2009254695A	2009-11-05
JP2017186722A	2017-10-12
JP2016215156A	2016-12-22
JP2009029722A	2009-02-12
JP2017185221A	2017-10-12
JP2005224604A	2005-08-25

KAZUHIKO ISHIKIRIYAMA ET AL., JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 173, 1995, pages 419 - 428
NOBUYUKI OTSU: "Journal of The Institute of Electronics", COMMUNICATION ENGINEERS, vol. 63, 1980, pages 349 - 356
See also references of EP 4026573A4

View/Download PDF      PDF Help

Previous Patent: INKJET RECORDING DEVICE

Next Patent: QUANTUM DOT AND METHOD FOR PRODUCING SAME