Articles having stabilized photosensitive diazo resin

Details Articles having stabilized photosensitive diazo resin Articles having stabilized photosensitive diazo resin

G - Physics

03

C

96/162

G03C 1/60 (2006.01) G03C 1/74 (2006.01) G03F 7/016 (2006.01) G03F 7/16 (2006.01)

Patent

CA 1247917

ARTICLES HAVING STABILIZED PHOTOSENSITIVE DIAZO RESIN Abstract of the Disclosure Plates such as those used in lithographic printing and photoresists such as those used in preparing printed circuit boards and the like are provided with a photopolymerizable photosensitive diazo resin that is unusually stable. The diazo resin is laid down from a stabilized diazonium composition that is an emulsion including the selected diazo resin, a purine derivative, especially a theophylline derivative, preferably in combination with a salt of a low molecular weight alkyl sulfonic acid or other supplementary stabilizer component.

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