Mitsui Toatsu Chemicals, Incorporated

Midori Yamazaki

Akihiro Yamaguchi

Keizaburo Yamaguchi

Yoshimitsu Tanabe

Kenichi Sugimoto

Masahiro Ohta

Shoji Tamai

Tatsuhiro Urakami

Norimasa Yamaya

Yukihiro Yoshikawa

Disclosed is an aromatic diamine compound represented by the formula (I) ##STR1## wherein R is H or CH.sub.3. Also disclosed is a bismaleimide compound represented by the formula (IV) ##STR2## wherein R is H or CH.sub.3, A resin forming composition comprising these compounds is also disclosed. The compounds are useful as raw materials for resins, and the resin forming composition and the resin can provide excellent heat resistance and impact resistance and low hygroscopicity.

Bismaleimide compounds

Aromatic diamine compounds, bismalemide compounds, thermosetting resin

Aromatic diamine compounds, bismaleimide compounds, thermosetting resin

Aromatic bismaleimide derivatives and process for preparing same

Aminobenzylamines are produced by catalytically reducing o-, m- or p-nitrobenzaldoxime in an organic solvent in the presence of a compound selected from the group consisting of (a) boric acid, phosphoric acid and/or anhydrides thereof, (b) CO.sub.2 gas and (c) an organic acid. The starting material, nitrobenzaldoxime is produced by reaction of the corresponding nitrobenzaldehyde with hydroxylamine.

Process for producing aminobenzylamines

A composition of aminobenzylamine is provided which is mainly composed of m-aminobenzylamine and p-aminobenzylamine in either the presence or absence of a small quantity of o-aminobenzylamine, is liquid at room temperature, and is an excellent cold-setting type curing agent useful for thermosetting resin compositions.

Aminobenzylamine composition

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Hiratsuka, Japan

Midori Yamazaki