Light-sensitive mixture and recording material prepared therefrom

摘要

Light-sensitive mixture contains (a) an elastomeric block copolymer (I) as binder, (b) a polymerisable compound (II) and (c) a photopolymerisation initiator. The novelty is that (I) has blocks of (1) styrene units, (2) alkylene units and (3) diene units. Also claimed are (i) light-sensitive copying material with a dimensionally stable base and a coating of this mixture; (ii) a method of producing relief images or relief printing plates from the material; and (iii) a method of printing with these flexographic plates.