IR-absorbing phthalocyanines

Details IR-absorbing phthalocyanines IR-absorbing phthalocyanines

1997-03-24

1998-07-21

Sham, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540124, 540125, 540127, 252587, C07D48722, C09B 4720, F21V 904

Patent

active

057836949

ABSTRACT:
Compounds of the general formula I ##STR1## where the A radicals are, independently of one another, ##STR2## where the rings B and C can also, independently of one another, be substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, nitro, hydroxysulfonyl, benzoyl or a fused-on benzo ring,

REFERENCES:
patent: 5322760 (1994-06-01), Itoh et al.
patent: 5705101 (1998-01-01), Oi et al.

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