Fogged direct positive silver halide emulsion containing a cyani

Details Fogged direct positive silver halide emulsion containing a cyani Fogged direct positive silver halide emulsion containing a cyani

1977-03-16

1978-08-29

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

96133, 96135, 96137, 96138, 96129, 96139, 96140, 96107, 542441, 542442, 542443, 542440, 542473, 542474, 542475, 542476, 542452, G03C 136, G03C 128, G03C 118

Patent

active

041101162

ABSTRACT:
New cyanine dyes derived from di-halogen-benzoxazoles and benzothiazoles are desensitizers for silver halide negative emulsions and useful electron acceptor spectral sensitizers for direct positive silver halide emulsions.

REFERENCES:
patent: 3338714 (1967-08-01), Ficken et al.
patent: 3772030 (1973-11-01), Gilman et al.
patent: 3822136 (1974-07-01), Sakazume et al.

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