Positive working light-sensitive composition containing a free r

Details Positive working light-sensitive composition containing a free r Positive working light-sensitive composition containing a free r

1990-06-04

1991-11-12

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...

430165, 430192, 430193, 430270, 430340, 430343, 430344, 430920, G03C 152, G03C 500

Patent

active

050647415

ABSTRACT:
A light-sensitive composition is herein disclosed, which comprises at least one free radical generator represented by the following general formula: ##STR1## and at least one discoloring agent which interacts with products generated through the photolytic degradation of the free radical generator to change the color tone of the composition. The composition has a high stability with time and a good printing out property and therefore it can be used in making light-sensitive layer of PS plates, photoresists, proof plates for printing and films for overhead projector, intermediate print and photomask having high sensitivity long shelf life.

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