| abstract |
A copolymer is provided having the general posterior structure, where a, b, and d are molar ratios that vary between about 0.01 and about 0.90 and c is a molar ratio that varies between about 0.01 and about 0.90; Al represents monomer units comprising a cyano-containing pendant group in which the cyano is not directly attached to the structure of the copolymer; A2 represents monomer units comprising two or more hydrogen binding sites; A3 represents monomer units that increase the solubility in organic solvents; and A4 represents monomer units that increase the solubility in aqueous alkaline solutions. Also provided is an almost infrared radiation sensitive coating composition comprising this copolymer as well as a positive working lithographic, thermal printing plate comprising an almost infrared radiation sensitive coating comprising this copolymer, a method of producing this printing plate and finally a method for printing using this printing plate. |