PRODUCTION OF SEPARATION FUNCTIONAL FIBER, AND ION EXCHANGE FIBER AND GAS ADSORBING MATERIAL PRODUCED BY USING THE SAME

Title:

PRODUCTION OF SEPARATION FUNCTIONAL FIBER, AND ION EXCHANGE FIBER AND GAS ADSORBING MATERIAL PRODUCED BY USING THE SAME

Document Type and Number:

Japanese Patent JP3386929

Kind Code:

B2

Abstract:

PURPOSE: To obtain an ion exchange fiber and a gas absorbing material by irradiating an ionizing radiation to a fiber having a specific core-sheath structure and grafting the fiber with a polymerizable monomer.
CONSTITUTION: An olefinic polymer such as a polyethylene capable of producing a radical by irradiating ionizing radioaction rays such as γ-rays or electron beam is arranged in the sheath part of a fiber and a polyethylene terephthalate hardly causing degradation due to irradiation is arranged in the core part to afford a core-sheath type fiber concentrically or eccentrically formed in a shear-core weight ratio of 0.1-10 and the ionizing radioactive rays are irradiated to the core-sheath type fiber or fabric or nonwoven fabric made therefrom in which sheath parts of adjacent fibers are fused or its processed product, and then, the fiber is grafted with a polymerizable monomer such as glycidyl methacrylate to form the objective separation functional fiber. The core-sheath structure fiber or the separation functional fiber is subjected to radiation graft polymerization with a monomer other than styrene to provide the objective ion exchange fiber, and the objective gas adsorbing material is obtained by using the separation functional fiber.

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Inventors:

Takanobu Sugo
Toshihiko Yamada
Hiroyuki Shima
Kunio Fujiwara

Application Number:

JP14646595A

Publication Date:

March 17, 2003

Filing Date:

June 13, 1995

Export Citation:

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Assignee:

Japan Atomic Energy Research Institute
Ebara Corporation

International Classes:

B01D53/02; B01J39/20; B01J41/14; C08J5/20; D01D5/34; D03D1/00; D06M13/02; D06M13/184; D06M13/203; D06M14/28; D06M14/32; D06M101/00; D06M101/16; D06M101/18; D06M101/30; D06M101/32; (IPC1-7): B01D53/02; D06M14/28

Domestic Patent References:

JP564726A

Attorney, Agent or Firm:

Kazuo Shamoto (5 outside)

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