Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1989-08-02
1991-03-26
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
430163, 430171, 430176, 430914, 522 32, 522178, 534560, G03C 168, G03C 152, G03F 7038
Patent
active
050028561
ABSTRACT:
This invention relates to carbazole diazonium salts which are used in pre-polymer or polymer compositions as sources of photoinitiated strong acids in such developments as imaging films where strong acids are needed to effect polymerization of the film or to remove protective groups.
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Moran et al., J. Chem. Soc., 121, 2709 (1922).
Chu John S. Y.
E. I. Du Pont de Nemours and Company
Michl Paul R.
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