Photographic emulsions containing methine dyes having a 1H-imida

Details Photographic emulsions containing methine dyes having a 1H-imida Photographic emulsions containing methine dyes having a 1H-imida

1973-08-16

1976-02-03

Brown, J. Travis

Gas separation: apparatus

Solid sorbent apparatus

Plural diverse separating means

96 84R, 96101, 96130, 96132, 96139, 96140, 96141, 2602404, 2602406, 26024065, G03C 118, G03C 122

Patent

active

039363082

ABSTRACT:
Light-sensitive photographic emulsions are provided which feature at least one methine dye containing a 1H-imidazo[4,5-b]pyrazine nucleus.

REFERENCES:
patent: 3431111 (1969-03-01), Brooker et al.
patent: 3501307 (1970-03-01), Illingsworth
patent: 3772030 (1973-11-01), Gilman et al.

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