Flexographic printing forms for UV-hardenable printing inks

摘要

Photopolymerizable printing plates with an improved resistance to UV-hardenable printing inks, have an elastomeric layer containing at least one thermoplastic, elastomeric, block copolymer comprising two or more polymer blocks comprising aromatic vinyl units, and one or more polymer blocks comprising isoprene and/or isoprene/butadiene units. The block copolymer has a vinyl bond content not above 70%, a glass transition temperature not above 20 DEG C., and a peak temperature of a primary dispersion of tan delta not above 30 DEG C.