Curable resin composition, structural adhesive, coating material or fiber reinforced composite material using the same, foam body using the same, laminate using the same, and cured material thereof

A curable resin composition comprising a polyol (A) having an average hydroxyl value of 200 to 1500 mg KOH/g, a polyisocyanate (B), and polymer fine particles (C), wherein the polymer fine particles (C) have a core-shell structure,

• the polymer fine particles (C) have one or more core layers selected from the group consisting of a diene rubber, a (meth)acrylate rubber, and an organosiloxane rubber,
• the polymer fine particles (C) have a shell layer graft-polymerized on the core layer,
• the shell layer is polymerized with a monomer having a hydroxyl group,
• the shell layer is further polymerized with one or more monomers selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide monomer, and a (meth)acrylate monomer,
• the content of the monomer having a hydroxyl group is not less than 4% by mass and not more than 60% by mass per a total monomer used in the formation of the shell layer, and
• a dispersion of which the polymer fine particles (C) are dispersed in a part of the polyol (A) is added to the curable resin composition.