Light-sensitive diazo resin composition with polyurethane and co

Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...

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430158, 430159, 430160, 430161, 430176, 430179, 430302, 430309, 430331, G03F 7021, G03F 7016, G03C 161

Patent

active

049802631

ABSTRACT:
A light-sensitive composition comprises a diazo resin, a polymeric binder, and at least one compound having at least one structural unit selected from the group consisting of ureido bond, thioureido bond, urethane bond and thiourethane bond. The light-sensitive composition can suitably be used for preparing a presensitized plate for use in making lithographic printing plates and is excellent in developability with an aqueous alkaline developer.

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