POROUS RESIN PARTICLE, METHOD FOR PRODUCING SAME, DISPERSION, AND APPLICATION THEREOF

摘要

A porous resin particle comprises a polymer of a monomer mixture containing: a mono(meth)acrylic acid ester monomer having an ethylenic unsaturated group only in a (meth)acrylic acid residue and containing an ether group and/or an ester group and a hydroxyl group in an alcohol residue; and a polyfunctional vinyl monomer having two or more ethylenic unsaturated groups. The amount of water absorption is from in excess of 400 mL/100 g to 700 mL/100 g and the amount of oil absorption is from in excess of 400 mL/100 g to 700 mL/100 g.