Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing
Patent
1992-08-19
1994-04-12
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Antihalation or filter layer containing
430931, 524 99, 524100, 524101, 524102, 524103, 524110, G03C 1815
Patent
active
053024974
ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.o, is hydrogen or alkylene-COOR where R is alkyl or hydroxyalkyl, R.sub.1 is hydrogen, alkyl, hydroxyalkyl, alkenyl or acyl, R.sub.2 and R.sub.3 are independently hydrogen, alkyl, alkenyl or alkoxy, R.sub.6 is hydrogen or alkyl, and X is --CH.sub.2 --, --NH--, --S-- or --O--, are suitable as UV absorbers for use in photosensitive organic materials in combination with a sterically hindered amine or hydroxyphenylbenzotriazole derivative.
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A. C. Jain et al., Tetrahedron, 25, 275 (1968).
Berner Godwin
Valet Andreas
Brammer Jack P.
Ciba-Geigy Corporation
Teoli, Jr. William A.
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