Chemical sensitization of large tabular grain emulsions

Details Chemical sensitization of large tabular grain emulsions Chemical sensitization of large tabular grain emulsions

1997-12-05

2000-12-12

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430603, 430605, G03C 1035, G03C 109

Patent

active

061596760

ABSTRACT:
The invention relates to an emulsion comprising tabular grains of greater than or equal to about 3.7 .mu.m area weighted mean equivalent circular diameter and thiourea sensitizer having the structural formula: ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently can represent an alkylene, cycloalkylene, carbocyclic arylene or heterocyclic arylene, alarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R.sub.1 and R.sub.2 or R.sub.3 and R.sub.4 can complete a 5- to 7-member heterocyclic ring; and

REFERENCES:
patent: 4810626 (1989-03-01), Burgmaier et al.
patent: 5049485 (1991-09-01), Deaton
patent: 5503970 (1996-04-01), Olm et al.
patent: 5573902 (1996-11-01), Daubendiek et al.
patent: 5576168 (1996-11-01), Daubendiek et al.
patent: 5576171 (1996-11-01), Olm et al.
patent: 5582965 (1996-12-01), Deaton et al.
patent: 5612175 (1997-03-01), Eshelman et al.
patent: 5612176 (1997-03-01), Eshelman et al.
patent: 5709988 (1998-01-01), Black et al.

Affiliated with

Also associated with

Rating

Chemical sensitization of large tabular grain emulsions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chemical sensitization of large tabular grain emulsions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical sensitization of large tabular grain emulsions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-215246