Patent ID: 8592542
Filing Date: 2013-11-26
Classification: C08F

Abstract:
1. Porous resin beads comprising a first aromatic monovinyl compound-divinyl compound-(meth)acrylamide derivative copolymer that further comprises as a structural unit a second aromatic monovinyl compound having a functional group capable of binding to a carboxyl group by a dehydrating condensation reaction, wherein the first aromatic monovinyl compound is styrene, the second aromatic monovinyl compound having a functional group capable of binding to a carboxyl group is hydroxystyrene, the divinyl compound is selected from divinylbenzene, monovalent ethylene glycol di(meth)acrylate, and polyvalent ethylene glycol di(meth)acrylate, and the (meth)acrylamide derivative is selected from N-alkyl(meth)acrylamides, N,N-dialkyl(meth)acrylamides, N-alkoxyalkyl(meth)acrylamides, and diacetoneacrylamide.