Single exposure positive contact multilayer photosolubilizable l

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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430 5, 430145, 430165, 430166, 430192, 430294, 430300, 430309, 430323, 430326, G03C 1495, G03C 160, G03C 154

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active

045045666

ABSTRACT:
Multilayer photosolubilizable litho element comprising (1) support, (2) photosolubilizable dye or pigment-containing layer having an optical density in the visible region of the spectrum of at least 2.0 comprising a quinone diazide and at least one acidic polymeric binder, and (3) photosolubilizable layer comprising a quinone diazide compound and at least two acidic polymeric binders having carboxylic acid substituents, one binder having an acid number below 110, preferably poly(methylmethacrylate/methacrylic acid). The element is useful as a single exposure positive contact litho film.

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