Patent ID: 8128746
Filing Date: 2012-03-06
Classification: C09D

Abstract:
1. An ink composition comprising (i) a polymerization initiator, (ii) a (meth)acrylate which includes a (meth)acryloyl group and an additional double bond having, at an α position, a carbon atom having an sp 3 hybrid orbital, (iii) an N-vinyllactam as another polymerizable compound other than the (meth)acrylate having a double bond with a carbon atom having an sp 3 hybrid orbital at an α position, and (iv) a colorant, wherein the (meth)acrylate is represented by following formula (I): wherein R wherein in the formula (II) or (III), * represents a binding site for the alkyl group represented by any one of R wherein in the formula (I), two or more alkyl groups represented by R