Mitsubishi Gas Chemical Company, Inc.

Yuka Akai

Kazuki Kouno

Kousuke Ikeuchi

Takuma Hanaoka

Yuma Ohno

A polyurethane chain extender includes an amine compound (X) represented by Formula (1) with a trans-isomer proportion in (X) of 50 mol % or more; a composition for forming a polyurethane-based resin including the polyurethane chain extender; a polyurethane-based resin formed by the composition for forming the polyurethane-based resin; a polyurethane-based resin obtained by reacting a polyisocyanate compound (A), a polyol compound (B) and the polyurethane chain extender; a polyurethane-based resin composition including the polyurethane-based resin; a molded body obtained by molding the polyurethane-based resin composition; and an article including the polyurethane-based resin composition or the molded body: where Rto Reach independently represent a hydrogen atom or a hydrocarbon group having 1 or more and 4 or less of carbon atoms, p and q each independently represent an integer of 0 or more and 4 or less, and at least one of p and q is 1 or more.

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Kanagawa, Japan

Yuka Akai