Mitsubishi Gas Chemical Company, Inc.

Yuma Ohno

Kazuki Kouno

Kousuke Ikeuchi

Emi Ota

Aoi Yokoo

Takuma Hanaoka

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 are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A) and a compound (B) represented by the following formula (1), and wherein the content of the component (B) based on 100 parts by mass of the component (A) is from 0.01 to 2.0 parts by mass, an epoxy resin composition, and use of an amine composition for an epoxy resin curing agent, wherein Rrepresents an alkyl group having 1 to 6 carbon atoms, and p is a number of 1 to 3.

Epoxy resin curing agent, epoxy resin composition, and use of amine composition

Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A), a compound (B) represented by the specific formula (1), and a compound (C) represented by the specific formula (2), and wherein a mass ratio of the component (B) to the component (C) [(B)/(C)] is from 0.01 to 5.0, an epoxy resin composition, and use of an amine composition for an epoxy resin curing agent.

Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A) and a compound (B) represented by the following formula (1), and wherein the content of the component (B) based on 100 parts by mass of the component (A) is from 1.5 to 20.0 parts by mass, an epoxy resin composition, and an epoxy resin curing agent for an amine composition. In the formula (1), Ris an alkyl group having 1 to 6 carbon atoms optionally having a hydroxy group, RNHCH—, where Rrepresents an alkyl group having 1 to 6 carbon atoms, or a group represented by the following formula (1A), and p is a number of 0 to 2. In the formula (1A), Rrepresents a hydrogen atom or NH—.

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Kanagawa, Japan

Yuma Ohno