Ube Industries, Inc.

Yuma Irisa

Tomonori Kanougi

Masao Kikuchi

Kenji Fukunaga

Shuichi Maeda

Shoichi Yamaoka

Shigekazu Okamura

A resin composition, preferably an adhesive composition, comprising a polyether polyamide elastomer capable of being strongly bended with a polyimide resin, preferably strongly bended through an easy process to form an interface between the polyimide resin and the composition, and a bonded composite having the resin composition and a polyimide resin which together form an interface to be bonded with each other. A resin composition for forming an interface together with a polyimide resin for bonding, wherein the resin composition comprises a polyether polyamide elastomer (component R) obtained by subjecting a specific aminocarboxylic acid compound A1 and/or lactam compound A2, polyether compound B, and dicarboxylic acid compound C to polymerization, wherein the content of the component R in the resin composition is 80 to 100% by weight.

Resin composition and bonded composite

In a hollow fiber element constituting a separation membrane module for separating an organic vapor, at least one end part of a fiber bundle consisting of multiple hollow fiber membranes having a selective permeability is fixed and bound with a tube sheet formed by a cured material, in which an epoxy composition (A) has been cured by using a hardener (B). A glass transition temperature of said cured material is not less than 160&#xb0; C., a minimum elongation at break thereof is not less than 7.0%, and an elution ratio thereof is less than 5%. For this reason, the hollow fiber element has enough endurance to retain a gas-tightness of an internal space of the hollow fiber membrane and an external space of the hollow fiber membrane even in use under organic vapor with an elevated temperature and high pressure.

Hollow-fiber element for organic-vapor separation

A hollow fiber element constituting a separation membrane module for separating an organic vapor is disclosed. At least one end part of a fiber bundle consisting of multiple hollow fiber membranes having a selective permeability is fixed and bound with a tube sheet formed by a cured material of an epoxy resin composition. Herein, a resin component of the epoxy resin composition contains an epoxy compound (A) represented by the following formula (1), an epoxy compound (B) represented by the following formula (2) and an aromatic amine compound (C), and wherein the epoxy compound (A) and the epoxy compound (B) are blended at a proportion in a range from 90:10 to 60:40 by weight; 

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Ichihara, Japan

Yuma Irisa