High tabularity high chloride emulsions with inherently stable g

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430569, 430614, G03C 1035, G03C 107

Patent

active

052926320

ABSTRACT:
A radiation sensitive emulsion is disclosed containing a silver halide grain population internally free of iodide at the site of grain nucleation comprised of at least 50 mole percent chloride, based on total silver forming the grain population, in which greater than 30 percent of the grain population projected area is accounted for by tabular grains having a mean thickness of less than 0.3 .mu.m. The tabular grains combine high tabularities and relatively high aspect ratios with exceptional stability imparted by parallel major faces lying in {100} crystallographic planes.

REFERENCES:
patent: 4063951 (1977-12-01), Bogg
patent: 4298683 (1981-11-01), Becker et al.
patent: 4386156 (1983-05-01), Mignot
patent: 4399215 (1983-08-01), Wey
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.
patent: 5183732 (1993-02-01), Maskasky
patent: 5185239 (1993-02-01), Maskasky
Endo & Okaji, "An Empirical Rule to Modify the Habit of Silver Chloride to form Tabular Grains in an Emulsion", The Journal of Photographic Science, vol. 36, pp. 182-188, 1988.
Mumaw & Haugh, "Silver Halide Precipitation Coalescence Processes", Journal of Imaging Science, vol. 30, No. 5, Sep./Oct. 1986, pp. 198-209.
Symposium: Torino 1963, Photographic Science, Edited by C. Semerano & U. Mazzucato, Focal Press, pp. 52-55.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High tabularity high chloride emulsions with inherently stable g does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High tabularity high chloride emulsions with inherently stable g, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High tabularity high chloride emulsions with inherently stable g will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-152444

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.