Patent ID: 8722756

Claim:
An aqueous emulsion polymer, comprising units of: (A) a monomer A, (B) a monomer B, which is a (meth)acrylate having at least one olefinically unsaturated side group, and (C) a photoinitiator, wherein said monomer B comprises at least one member selected from the group consisting of methacryloyloxy-2-ethyloleamide, methacryloyloxy-2-ethyllinoleamide, methacryloyloxy-2-ethyllinolenamide, methacryloyloxy-2-hydroxypropyl-linoleic ester methacryloyloxy-2-hydroxypropyl-oleic ester, and a mixture thereof, and said photoinitiator comprises a mixture of 4-methylbenzophenone and 2,4,6-trimethylbenzophenone.