Process for preparing high chloride (100) tabular grain emulsion

Details Process for preparing high chloride (100) tabular grain emulsion Process for preparing high chloride (100) tabular grain emulsion

1997-11-21

1999-06-01

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, G03C 1015, G03C 1035

Patent

active

059087404

ABSTRACT:
A process of preparing a photographically useful high chloride {100} tabular grain emulsion is disclosed that, following grain nucleation, introduces the total silver required for grain growth before undertaking ripening at a temperature of from 60 to 95.degree. C. The advantages attainable include a higher concentration of the silver in the final emulsion and high chloride tabular grains having larger mean grain sizes and higher average aspect ratios and accounting for a higher percentage of total grain projected area.

REFERENCES:
patent: 5264337 (1993-11-01), Maskasky
patent: 5292632 (1994-03-01), Maskasky
patent: 5320938 (1994-06-01), House et al.
patent: 5413904 (1995-05-01), Chang et al.
patent: 5641620 (1997-06-01), Yamashita et al.
patent: 5663041 (1997-09-01), Chang et al.
patent: 5665530 (1997-09-01), Oyamada et al.
patent: 5744297 (1998-04-01), Chang et al.

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