Patent ID: 8436069
Filing Date: 2013-05-07
Classification: C09D

Abstract:
1. An ink composition comprising: a radical polymerizable compound; a photopolymerization initiator; and a chain transfer agent, wherein the radical polymerizable compound comprises a monofunctional monomer having one radical polymerizable ethylenic unsaturated bond in a molecule, at a ratio of 85% by weight or more in the total weight of the radical polymerizable compound, wherein the monofunctional monomer comprises at least one selected from the group consisting of N-vinyl caprolactam, tetrahydrofurfuryl acrylate, isobornyl acrylate and phenoxyethyl acrylate, and wherein the chain transfer agent is a secondary or tertiary multifunctional thiol compound having a molecular weight of from 3,000 to 80,000, the chain transfer agent is selected from the group consisting of the following compounds: