Aqueous developable lithographic printing plates containing an a

Details Aqueous developable lithographic printing plates containing an a Aqueous developable lithographic printing plates containing an a

1984-12-27

1986-10-21

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430158, 430160, 430161, 430302, G03C 160, G03C 154, G03C 194, G03F 708

Patent

active

046185623

ABSTRACT:
An improved negative working photographic element is prepared by coating a suitable substrate with a photosensitive composition comprising an admixture of two light sensitive diazonium salts and a binder composition comprising a polyvinyl acetate resin and a styrene/maleic acid half ester copolymer. Upon imagewise exposure of the element to actinic radiation through a suitable mask, the unexposed portions are removable with an aqueous alkaline developer.

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patent: 3679419 (1972-07-01), Gillich
patent: 3849392 (1974-11-01), Steppan
patent: 3890152 (1975-06-01), Ruckert et al.
patent: 4294905 (1981-10-01), Okishi et al.
patent: 4436804 (1984-03-01), Walls
patent: 4472494 (1984-09-01), Hallman et al.
patent: 4511640 (1985-04-01), Liu

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