Abstract: The present invention aims to provide a curable resin composition which has low viscosity as well as properties such as high elongation property, hydrogen gas barrier property, and adhesiveness. A curable resin composition includes ingredients (A) to (D): ingredient (A): a vinyl polymer having one or more alkenyl groups in one molecule, ingredient (B): a compound having one or more hydrosilyl groups in one molecule, ingredient (C): a hydrosilylation catalyst, and ingredient (D): a polydimethylsiloxane oligomer having one or more ethylenically unsaturated groups and one or more hydrolyzable silyl groups in one molecule.

Abstract: The present invention has an object to produce a curable resin composition that achieves both low-temperature curability and low compression set. Provided is a sealing agent for fuel cell, comprising (A) to (D) ingredients: (A) ingredient: a vinyl polymer having one or more alkenyl groups per molecule and being liquid at 25° C.; (B) ingredient: a compound having one or more hydrosilyl groups per molecule; (C) ingredient: a hydrosilylation catalyst; and (D) ingredient: a heavy metal deactivator being one or more compounds selected from the group consisting of amino group-containing triazine compounds, aminotriazole compounds, and hydrazide compounds.

Abstract: The present invention has an object to produce a curable resin composition that achieves both low-temperature curability and low compression set. Provided is a sealing agent for fuel cell, comprising (A) to (D) ingredients: (A) ingredient: a vinyl polymer having one or more alkenyl groups per molecule and being liquid at 25° C.; (B) ingredient: a compound having one or more hydrosilyl groups per molecule; (C) ingredient: a hydrosilylation catalyst; and (D) ingredient: a heavy metal deactivator being one or more compounds selected from the group consisting of amino group-containing triazine compounds, aminotriazole compounds, and hydrazide compounds.

Abstract: The present invention aims to provide a curable resin composition which has low viscosity as well as properties such as high elongation property, hydrogen gas barrier property, and adhesiveness. A curable resin composition includes ingredients (A) to (D): ingredient (A): a vinyl polymer having one or more alkenyl groups in one molecule, ingredient (B): a compound having one or more hydrosilyl groups in one molecule, ingredient (C): a hydrosilylation catalyst, and ingredient (D): a polydimethylsiloxane oligomer having one or more ethylenically unsaturated groups and one or more hydrolyzable silyl groups in one molecule.