SEA-ISLAND COMPOSITE FIBER, CARRIER FOR ADSORPTION, AND MEDICAL COLUMN PROVIDED WITH CARRIER FOR ADSORPTION

WIPO Patent Application WO/2019/045031

A1

The purpose of the present invention is to provide ligand-immobilized sea-island composite fiber wherein both generation of microparticles caused by detachment of sea components from island components and generation of microparticles because of the destruction of fragile sea components are suppressed. The present invention is a sea-island composite fiber formed from sea components and island components, wherein: the value (L/S) of the average total length (L) of the perimeter of all island components in a cross-sectional surface perpendicular to the axis of the fiber divided by the average cross-sectional surface area (S) for the cross-sectional surface is 1.0 – 50.0 µm-1; the distance to the outermost island component from the surface is 1.9 µm or less; and compounds containing amino groups form covalent bonds with the polymer constituting the island components at an electron charge density of 0.1 to less than 500 µmol per 1 g dry weight.

MATSUNAGA RYO (JP)
KASUYA JUNICHI (JP)
UENO YOSHIYUKI (JP)
YAMANAKA HIROFUMI (JP)
KANEMORI YASUNORI (JP)
MASUDA MASATO (JP)
FUNAKOSHI JOJI (JP)

PCT/JP2018/032287

March 07, 2019

August 31, 2018

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TORAY INDUSTRIES (JP)

D01F8/04; B01D15/38; B01J20/26; D06M13/332; A61M1/36

WO2017019874A1

2017-02-02

JP2015074853A	2015-04-20
JP2009095436A	2009-05-07
JP2008080114A	2008-04-10
JPS5598912A	1980-07-28
JPH0738880B2	1995-05-01
JP2012005827A	2012-01-12
JP2004229867A	2004-08-19
JP2015074853A	2015-04-20
JP2014227633A	2014-12-08
JPH05329364A	1993-12-14

See also references of EP 3677710A4

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