Patent ID: 6277541
Filing Date: 2001-08-21
Classification: B41C,G03F,Y10S

Abstract:
A photosensitive lithographic printing plate comprising an aluminum support hydrophilized after anodic oxidization, an intermediate layer provided thereon containing an alkali-soluble polymer obtained by copolymerizing a constituent having an acid group selected from the group consisting of --COOH, --SO.sub.3 H, --OSO.sub.3 H, --OPO.sub.3 H.sub.2, --CONHSO.sub.2, and --SO.sub.2 NHSO.sub.2 -- and a constituent having an onium group and having a number-average molecular weight (Mn) adjusted to the range of 300 to 5,000 by using an initiator in combination with a chain transfer agent in radical polymerization, and a photosensitive layer provided on the intermediate layer.