Process for the preparation of high chloride tabular grain emuls

Details Process for the preparation of high chloride tabular grain emuls Process for the preparation of high chloride tabular grain emuls

1992-04-02

1993-10-12

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, G03C 1005

Patent

active

052524523

ABSTRACT:
A process of preparing a radiation sensitive high chloride high aspect ratio tabular grain emulsion is disclosed wherein silver ion is introduced into a high methionine gelatino-peptizer dispersing medium having a methionine content of greater than 30 .mu.moles/gram gelatin, containing a stoichiometric excess of chloride ions of greater than 0.5 molar, a pH of at least 4.5, and a 4,6-di(hydroamino)-5-aminopyrimidine grain growth modifier, such as adenine or 4,5,6 triaminopyrimidine.

REFERENCES:
patent: 4399215 (1983-08-01), Wey et al.
patent: 4400463 (1983-08-01), Maskasky
patent: 4414306 (1983-11-01), Wey et al.
patent: 4713323 (1987-12-01), Maskasky
patent: 4783398 (1988-11-01), Takada et al.
patent: 4804621 (1989-02-01), Tufano et al.
patent: 4942120 (1990-07-01), King et al.
patent: 4952491 (1990-08-01), Nishikawa et al.
patent: 4983508 (1991-01-01), Ishiguro et al.
patent: 5178997 (1993-01-01), Maskasky
patent: 5178998 (1993-01-01), Maskasky et al.
Tufano, T. P., and Chan, D. M. T., "Aminopyrimidine Crystal Growth Modifiers for the Precipitation of Chloride-Rich Emulsion Grains with {111} Crystal Surfaces", SPSE vol. 34, No. 2, Sep., 1989.

Affiliated with

Also associated with

Rating

Process for the preparation of high chloride tabular grain emuls does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of high chloride tabular grain emuls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of high chloride tabular grain emuls will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1903753