Meeresinselverbundfaser, Zelladsorptionsmaterial und Zelladsorptionssäule

Details

Veröffentlichungs-Nr.

EP4800165

Anmeldetag

21. Oktober 2024

Veröffentlichung

1. Mai 2025

Rechtsraum

EP

Abstract

The present invention aims at providing a sea-island composite fiber in which the generation of eluates due to decomposition of functional groups introduced into a polymer constituting a sea component is suppressed. The present invention provides a sea-island composite fiber including an island component and a sea component, wherein the sea component is fixed with a ligand and is covalently bonded with a chloro group-containing compound, and the sea-island composite fiber satisfies the following Formula 1: 1.3 ≤ spectral intensity of 35 Cl − in region A/spectral intensity of 35 Cl − in region B ≤ 20.0 Region A: a region within 1.0 µm from outermost surface of a cross section of the sea-island composite fiber Region B: a region within a radius of 5.0 µm from center of gravity of the cross section of the sea-island composite fiber Spectral intensity of <35>Cl<->: a spectral intensity of <35>Cl<-> when a spectral intensity of <25>C<2>H<->measured by time-of-flight secondary ion mass spectrometry in the respective region is defined as 1.

Anmelder

Firma

Toray Industries, Inc.

Land

🇯🇵 Japan