Infra-red sensitive photographic materials

Details Infra-red sensitive photographic materials Infra-red sensitive photographic materials

1991-06-19

1993-06-01

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548121, 548150, 548156, 548219, C07D21506, C07D26356, C07D27764, C07D29312

Patent

active

052161668

ABSTRACT:
Cyanine dyes are disclosed having a nucleus of the formula: ##STR1## wherein; A and B are independently selected from the group consisting of heterocyclic ring nuclei and heterocyclic fused ring nuclei so as to complete a cyanine dye,

REFERENCES:
patent: 2955939 (1960-10-01), Brooker et al.
patent: 4153463 (1979-05-01), Lea
patent: 4581325 (1986-04-01), Kitchin et al.
patent: 4933269 (1990-06-01), Parton et al.
patent: 5041550 (1991-08-01), Lea et al.
patent: 5112731 (1992-05-01), Miyasaka

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