Patent ID: 9134612
Filing Date: 2015-09-15
Classification: B41C,G03F

Abstract:
1. A printing form precursor comprising: a) a layer of a photopolymerizable composition sensitive to actinic radiation, the composition comprising a binder, a monomer, and a photo initiator; b) a layer of an elastomeric composition, that is or becomes sensitive to the actinic radiation, comprising at least an elastomeric binder, and particulate, the elastomeric composition having an index of refraction; wherein the particulate is selected from polyamide, polymethylmethacrylate, feldspar, nepheline syenite, or glass particles, the particulate having an average diameter from 1 to 10 micron and an index of refraction that is ±0.04 of the index of refraction of the elastomeric composition; and c) an actinic radiation opaque layer on, adjacent, or disposed above the elastomeric layer b) opposite the photopolymerizable layer a), that is capable of forming an in-situ mask.