1,3-diaza-9-thia-anthracene-2,4-diones and...

Details 1,3-diaza-9-thia-anthracene-2,4-diones and... 1,3-diaza-9-thia-anthracene-2,4-diones and...

C - Chemistry, Metallurgy

07

D

400/1208, 400/13

C07D 495/04 (2006.01) C07D 239/38 (2006.01) C08F 2/50 (2006.01) G03F 7/031 (2006.01)

Patent

CA 1213274

ABSTRACT Described are 1,3-diaza-9-thia-anthracene- 2,4-diones of the general formula (II) Image (II) wherein R1, R3 and R4 are identical or different and indivi- dually each denotes a hydrogen or halogen atom, an alkyl, alkoxy, carboxyl or alkoxy-carbonyl group, R2 denotes an alkoxy, carboxyl or alkoxy- carbonyl group, or two of the groups R1, R2, R3, and R4 together form a condensed aromatic radical. These compounds are used as photoinitiators in photopolymerizable recording materials and have an increased sensitively in the spectral range between 425 and 480 nm.

435907

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