Presensitized plate for use in making lithographic printing plat

Details Presensitized plate for use in making lithographic printing plat Presensitized plate for use in making lithographic printing plat

1990-04-25

1991-10-29

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430165, 430157, 430278, 430285, 430283, 430286, 430287, 430164, 430292, 430155, 522115, 522138, 522144, 522 88, G03C 152, G03F 7008, G03F 7028

Patent

active

050615920

ABSTRACT:
A presensitized plate for use in making a lithographic printing plate which comprises an aluminum substrate provided thereon with a light-sensitive layer comprising a polymer having at least two photodimerizable unsaturated double bonds in the molecule, wherein the light-sensitive layer further comprises a compound having at least one photodimerizable unsaturated double bond and at least one phosphinyl group in each molecule as well as a molecular weight of not more than 2,000. The presensitized plate shows excellent sensitivity and makes it possible to provide a lithographic printing plate showing high printing durability.

REFERENCES:
patent: 3197308 (1965-07-01), Stahlhofen
patent: 4830952 (1989-05-01), Penner et al.
patent: 4845009 (1989-07-01), Kita et al.

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