| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a composition markedly excellent in a balance between water developability and mechanical properties by mixing two specified monomers with a photopolymerizable unsaturated monomer and a photopolymerization initiator. SOLUTION: This composition comprises (A) a particulate copolymer containing 10-95 mol.% aliphatic conjugated diene units, 0.1-30 mol.% units of a monomer having one polymerizable unsaturation and at least one functional group selected among carboxyl groups, amino groups, hydroxyl groups, epoxy groups, sulfo groups, and phospho groups and 0.1-20 mol.% units of a monomer having at least two polymerizable unsaturations; (B) a block copolymer consisting of at least two polymer segments having different Tgs, wherein the block copolymer has at least one type of functional groups which can electrically interact on the functional groups as mentioned in component A and are selected from the groups of the above-mentioned functional groups as the side chains of at least one polymer segment other than the polymer segment having the lowest Tg; (C) a photopolymerizable unsaturated monomer; and (D) a photopolymerization initiator.</p> |
