Otsuka Kagaku Kabushiki Kaisha

Otsuka Chemical Co., Ltd.

Daihatsu Motor Company, Ltd.

Takashi Kitajima

Hirohisa Tanaka

Masatoshi Taniguchi

Akihiro Nabeshima

Koji Yamada

Koichiro Asazawa

Akinori Oka

Yoshihisa Tomotaki

Keiichiro Ishikawa

Tomohiro Furuichi

Kousuke Inada

Hiroshi Yagi

Provided is a composite laminate having excellent releasability from a mold during a production process, excellent surface appearance (surface smoothness) and mechano-physical properties, and excellent workability and coating adhesion. A composite laminateincludes an A layerand a B layer, wherein the A layeris provided directly or indirectly on one or both sides of the B layer, the A layercontains reinforcing fibers (a1) with an average fiber length of 1 μm to 300 μm, spherical particles (a11) with a volume mean particle diameter of 0.01 μm to 100 μm, and a thermoplastic resin (a2), and the B layercontains reinforcing fibers (b1) with an average fiber length of 1 mm or more and a thermoplastic resin (b2).

Composite laminate and method for producing same

Hardener for epoxy resin and epoxy resin composition

Curing agents for epoxy resins

Aqueous solution of water-soluble epoxy resin, solid obtained therefrom, and processes for producing these

A curing agent for epoxy resin which comprises at least one selected from 1-aminopyrrolidine and its salt.

1-Aminopyrrolidine or its salt as epoxy resin hardener

Growing community of inventors

Tokushima, Japan

Takashi Kitajima