RESIN COMPOSITION FOR LASER ENGRAVING, FLEXOGRAPHIC PRINTING PLATE PRECURSOR FOR LASER ENGRAVING AND PROCESS FOR PRODUCING SAME, AND FLEXOGRAPHIC PRINTING PLATE AND PROCESS FOR MAKING SAME

摘要

Disclosed is a resin composition for laser engraving, comprising (Component A) a polyurethane resin that is a plastomer at 20° C. and has an ethylenically unsaturated group in a main chain and a side chain and (Component B) a polymerization initiator. Also disclosed is a flexographic printing plate precursor for laser engraving, comprising a relief-forming layer comprising the above-described resin composition.