Electrophotolithographic printing plate precursor

Details Electrophotolithographic printing plate precursor Electrophotolithographic printing plate precursor

1994-01-13

1995-02-28

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430 91, 430 93, 430 96, G03G 5087, G03G 509

Patent

active

053936256

ABSTRACT:
Disclosed is electrophotolithographic plate precursor having on a conductive support at least one photoconductive layer containing at least a random copolymer binder resin (P) (i) having a weight average molecular weight of from 5.times.10.sup.4 to 5.times.10.sup.5, (ii) comprising (a) a polymer component comprising particular methacrylate or acrylate monomers, (b) a polymer component containing at least one particular polar group and (c) a polymer component having a Fedors' solution parameter of 9.0 or more and containing at least a particular aprotic polar group, and (iii) having at least a particular polar group at one end of the main chain of the copolymer. The plate precursor may be etched with a combination of an etchant and a wetting water both having no problem in the environmental sanitation, to be formed into an offset printing plate not generating background staining. The printing plate has high printing durability and has excellent rubbing resistance.

REFERENCES:
patent: 5198319 (1993-03-01), Kato
patent: 5229240 (1993-07-01), Kato et al.
patent: 5229241 (1993-07-01), Kato et al.
patent: 5242772 (1993-09-01), Kato et al.
patent: 5258249 (1993-11-01), Kato

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