Polymer for heat-sensitive lithographic printing plate precursor

Patent Name Polymer for thermographic lithographic printing plate Original patent applicant Applicant Agfa-Gruff Corporation Principal applicant Address Mötzel inventor B. Greniningdal; J. Rocoffel; H. Van Elder; M. Van Dammer Application (Patent) No. 03824213.3 Date of Application 2003.09.18 Certification Date Approval Notice No. 1688657 Audit Notice Date 2005.10.26 Manual CD-ROM D0543 Main Category Code C08L61/14 C08L61/14; C08G8/28 ; G03F7/105 division of the original application number priority item 2002.10.15 EP 02102444.3; 2002.10.24 US 60/420, 907 Abstract discloses a polymer for a thermosensitive lithographic printing plate precursor, wherein the polymer contains phenolic monomer units The hydroxyl H atom of the phenyl group in the phenol monomer unit is replaced with a group containing an N-imide group, and the substitution effect of the polymer therein increases the chemical resistance of the printing plate precursor coating. Slaves 1. A polymer containing phenolic monomer units in which the hydroxy group H of the phenolic monomer unit is replaced by an N-imide group Q having the structure wherein L is a linking group, where k is 0 or 1, when K is 1, where L is covalently bonded to the O atom of the polymer, or when N is 0, the N atom of the N-imide group in the formula is covalently bonded to the O of the polymer. An atom, wherein X or Y is independently selected from O or S, and wherein T1 and T2 represent end groups. International Application 2003-09-18 PCT/EP2003/050633 International Publications 2004-04-29 WO2004/035686 British Entering Country Date Patent Agency China Patent Agent (Hong Kong) Limited Corporate Address Agent Guo Guangxun Wang Jingchao