THERMALLY CROSSLINKABLE HYDROPHILIC COPOLYMERS AND THEIR USE IN REPROGRAPHY

• Main Authors: PLIEFKE; ENGELBERT, LUTZ; SILVIA, FAUST; RAIMUND J
• Format: Patent
• Language: English
• Published: 12.01.1993
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LINING MACHINES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM; PRINTING; PRINTING PLATES OR FOILS; STAMPS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYPEWRITERS

The invention relates to a thermally crosslinkable hydrophilic copolymer have the general structure: . . . -(A)m-. . . -(B)n-. . . -(C)o-. . . -(D)p-. . . in which A is at least one polymerizable monomer having an acidic side group, B is at least one polymerizable monomer having a basic side group, C is at least one polymerizable monomer having a non-polar, non-hydrophilic side group, and D is N-butoxymethylmethacrylamide, m, n, o and p are the monomer contents of monomers A, B, C and D, respectively, in mol %, with m+n +o+p=100 mol %, with the proviso that the sum of m+n=about 5 to 90 mol %, m and n are each >/=2 mol % and p is >/=1 mol %, wherein the copolymer is a linear copolymer having a random structure of the monomers. The copolymer is useful as a hydrophilizing agent for lithographic and offset printing plates.