LASER-IMAGEABLE FLEXOGRAPHIC PRINTING PRECURSORS AND USE

摘要

A laser-engraveable composition comprises one or more EPDM elastomeric rubbers, at least one of which comprises at least 8 weight % polyene recurring units. This laser-engraveable composition of elastomeric rubbers can be quickly crosslinked using sulfur-containing vulcanizing compositions to provide laser-engraveable compositions and layers in flexographic printing plate precursors. These precursors can be laser-engraved to provide relief images for flexographic printing.