Positive-working radiation-sensitive mixture comprising a sensit

Details Positive-working radiation-sensitive mixture comprising a sensit Positive-working radiation-sensitive mixture comprising a sensit

1986-11-24

1988-12-06

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430142, 430171, 430193, 430189, 430176, 430192, 430926, 430326, 430292, 430313, G03C 726, G03C 700, G03C 195

Patent

active

047896191

ABSTRACT:
A positive-working radiation-sensitive mixture is described that contains (a) a radiation-sensitive compound which forms a strong acid under the action of actinic radiation, (b) a compound with at least one C--O--C bond cleavable by acid, (c) a binder which is insoluble in water but soluble in aqueous-alkaline solutions, and (d) a polymethine dye. The polymethine dyes used are hemioxonol dyes or symmetrical cyanine dyes. In the light-sensitive mixture, these dyes effect high sensitization and high image sharpness contrast which, in addition, is substantially irreversible.

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