G - Physics – 03 – F
Patent
G - Physics
03
F
96/251, 96/69
G03F 7/20 (2006.01)
Patent
CA 1177684
Abstract of the Disclosure Disclosed is the improvement in post-exposing relief printying plates preparaed from photosentsitive polymeric com- positions which comprises immersing the relief printing plate in a dilute aqueous solution of a persulfate salt and a sur- ficient amount of a water-solution carboxylic acid to provide a pH of about 1.5 to about 2.5 during exposure to actinic radiation.
432922
Hercules Incorporated
Macrae & Co.
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