Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1978-12-04
1980-03-18
Brown, Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430566, 430600, 430613, 430570, 430581, G03C 184, G03C 140
Patent
active
041938011
ABSTRACT:
A method of incorporating water insoluble additives (e.g. sensitizing dyes) in colloid layers of photographic silver halide material is provided. The additives are dissolved in a fused water soluble organic compound (e.g. sorbitol or succinimide) and the resulting mixture is either directly added to an aqueous photographic emulsion or is dissolved in the minimum of water or organic solvent and this concentrated aqueous solution is then added to the aqueous photographic emulsion and the whole is then coated as a layer which is part of a photographic material.
REFERENCES:
patent: 2322027 (1943-06-01), Jelley et al.
patent: 2852381 (1958-09-01), Minsk et al.
patent: 3287134 (1966-11-01), Kainrath et al.
patent: 3438776 (1969-04-01), Yudelson
patent: 3469987 (1969-09-01), Owens et al.
patent: 3676147 (1972-07-01), Boyer et al.
Hopwood Howard R.
Trunley Roy
Brown Travis
Ciba-Geigy Aktiengesellschaft
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