Asahi Kasei Kogyo Kabushiki Kaisha

Kenji Ito

Fusakazu Hayano

Kaoru Ohmura

Kazuo Toyomoto

Yasuo Hashino

Hiroshi Komoto

Hideo Sekiguchi

A semipermeable membrane of a polyaryl ether sulfone having repeating units of the formula, ##STR1## wherein Ar.sup.1 and Ar.sup.2 independently represent ##STR2## wherein X, Y and Z independently represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a chlorine atom or a bromine atom; and l, m and n independently represent zero or an integer of 1 to 4, and having a contact angle of its surface to water of at most 65.degree..

Semipermeable membranes of polyaryl ether sulfones

An epoxy resin composition having excellent curability comprising 100 parts by weight of an epoxy resin having at least two epoxy groups per molecule and about 1 to 300 parts by weight of an amide derivative of 4-aminomethyl-1,8-diaminooctane.

Epoxy resin composition including amide derivative of

Growing community of inventors

Fuji, Japan

Kenji Ito