Patent ID: 8742014

Claim:
A liquid resin composition comprising: a resin component (A) selected from the group consisting of liquid thermosetting resins or photo curable resins, resin solutions of solid thermosetting resins or photo curable resins dissolved in a solvent, and liquid organic compounds capable of forming a polymer chain with a thermosetting resin or a photo curable resin; and polymer particles (B) each having an elastic core layer, an intermediate layer formed with only a monomer having two or more polymerizable double bonds and coated on the core layer, and a shell layer coated on the intermediate layer; wherein the polymer particles (B) are dispersed at a ratio of their volume average particle diameter (Mv) to their number average particle diameter (Mn) of 3 or lower, the monomer having two or more polymerizable double bonds is at least one selected from the group consisting of (meth)acrylate polyfunctional monomers, isocyanuric acid derivatives, aromatic vinyl polyfunctional monomers, and aromatic polycarboxylic acid esters having two or more polymerizable double bonds, and the intermediate layer is contained at an amount of not smaller than 0.2% by mass and not larger than 7% by mass in 100% mass of the polymer particles (B).