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Title: Low coating weight silver halide element using mix sensitization techniques

Abstract: The sensitivity of a gelatino-silver halide emulsion is improved by adding glutaraldehyde bisulfite in combination with benzene sulfinic acid during the preparation of the silver halide, viz. when a silver salt is mixed with a halide to precipitate a silver halide.


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Inventors: Schoenberg, Allan R. (Asheville, NC)

Application Number: 06/257972
Filing Date: 1981-04-27
Publication_date: 1983-05-10
Assignee: Pont DU.

Primary Class(es): 430/599 430/605, 430/621, 430/603, 430/569
Other Classes: G03C1/015; G03C1/10; G03C1/28
US Patent Ref:
3232764February, 1966Allen et al.96/111Gelatin compositions adapted for the preparation of hardened coatings
3294536December, 1966Baden et al.430/451Photographic prehardener compositions
4124397November, 1978Abele et al.96/109Process for hardening photographic silver halide emulsions
4175970November, 1979LeStrange430/529Process for sensitizing photographic silver halide emulsions
4294920October, 1981Helling et al.430/569Photographic silver halide emulsion

Other Refs:
Primary Examiner: Louie Jr., Won H.
Assistant Examiner:
Attorney: Kiely, Philip G.
Claims:
I claim: