ACTIVE ENERGY BEAM CURABLE INK CONTAINING MALEIMIDE DERIVATIVE AND CURING OF THE CURABLE INK

摘要

PROBLEM TO BE SOLVED: To obtain an ink having an appropriate viscosity, which is curable at practical levels of light intensity and light irradiation without use of a photopolymerization initiator, by using a maleimide derivative. SOLUTION: A maleimide derivative of the formula is used. In the formula, (m) and (n) are, respectively, 0 to 6; m+n is 1 to 6; R11 and R12 represent each independently a hydrocarbon bond made of an aliphatic group and/or an aromatic group; G1 and G2 represent each independently a (poly)ether bond linkage or a (poly)ether residue, a (poly)ester linkage or a (poly)ester residue, a (poly)urethane linkage or a (poly)urethane residue, or a (poly)carbonate linkage or a (poly)carbonate residue, each combined through a bond selected from an ether bond, an ester bond, a urethane bond and a carbonate bond. The maleimide derivative of the formula may be used in combination with a compound copolymerizable with the maleimide group of the maleimide derivative of the formula.