Mitsubishi Gas Chemical Company, Inc.

Takuma Hanaoka

Yuiga Asai

Kazuki Kouno

Kousuke Ikeuchi

Tomotaka Wada

Yuma Ohno

Saeko Sato

Yuka Akai

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.

Polyurethane chain extender, composition for forming polyurethane resin, polyurethane resin, polyurethane resin composition, molded body, and article

Provided is a water-based epoxy resin composition and a cured product thereof, the water-based epoxy resin composition obtained by blending a water-based epoxy resin (A) and a curing agent composition (B) containing a reaction product (b1) of epichlorohydrin and an amine compound represented by the following formula (1), the water-based epoxy resin composition having a content ratio of the component (A) and the component (B) defined as [number of epoxy groups in component (A)/number of active amine hydrogens in component (B)] of 1/1.1 to 1/0.3:HN—CH—A—CH—NH  (1) wherein A is a 1,2-phenylene group, a 1,3-phenylene group, or a 1,4-phenylene group.

Aqueous epoxy resin composition and cured product of same

Provided is a curing agent for a water-based epoxy resin, which contains the following component (A) and component (B):

Curing agent for water-based epoxy resin, water-based epoxy resin composition, and cured product thereof

A curing agent for a water-based epoxy resin, including a reaction composition (A) containing a reaction product of styrene and an amine compound represented by the following formula (1), a water-based epoxy resin composition containing the same, and a cured product thereof.HN&#x2014;CH-A-CH&#x2014;NH&#x2003;&#x2003;(1)wherein A is a 1,2-phenylene group, a 1,3-phenylene group, or a 1,4-phenylene group.

Provided are an amine compound represented by the following formula (1), which has a low active hydrogen equivalent weight and thus is capable of providing a cured product having good properties because the amine compound has sufficient curability even though the amount of amine compound blended in an epoxy resin composition is small when the amine compound is used as an epoxy resin curing agent, and an amine composition and an epoxy resin curing agent, which contain the compound:  wherein A is a 1,2-phenylene group, a 1,3-phenylene group, or a 1,4-phenylene group.

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Kanagawa, Japan

Takuma Hanaoka