Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1983-04-29
1985-11-05
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430272, 430325, G03C 500
Patent
active
045514160
ABSTRACT:
Photosensitive bodies that are sensitive to ultraviolet radiation and that exhibit excellent contrast are formed from base soluble polymers such as poly(methyl methacrylate-co-methacrylic acid) physically mixed with base insoluble materials such as o,o'-dinitrobenzyl esters. The base insoluble esters decompose upon irradiation to form base soluble entities in the irradiated regions. These irradiated portions are then soluble in basic solutions that are used to develop the desired image.
REFERENCES:
patent: 3849137 (1974-11-01), Barzynski et al.
patent: 3949143 (1976-04-01), Schlesinger
patent: 4131465 (1978-12-01), Petropoulos
patent: 4150989 (1979-04-01), Chambers et al.
patent: 4400461 (1983-08-01), Chandross et al.
Chandross Edwin A.
Reichmanis Elsa
Wilkins, Jr. Cletus W.
AT&T Bell Laboratories
Brammer Jack P.
Tiegerman Bernard
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