Photographic processes and compositions employing thioether cont

Details Photographic processes and compositions employing thioether cont Photographic processes and compositions employing thioether cont

1978-08-04

1980-07-08

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430419, 430428, 430566, G03C 554, G03C 538, G03C 148

Patent

active

042115590

ABSTRACT:
Difunctional compounds wherein one of said functions is a hard or soft atom that ionizes to the corresponding anion in alkaline solution to combine with silver cation and the other of said functions is a non-ionizable soft base that additionally combines with said silver cation are employed as silver halide complexing agents in photography. In a preferred embodiment, the difunctional compounds possess (a) an O, N or C atom that ionizes to the corresponding O.crclbar., N.crclbar. or C.crclbar. anion in basic solution and (b) an --S-- containing moiety excluding --SH and moieties that form --S.crclbar. in basic solution wherein the --S-- of said moiety is positioned alpha, beta, gamma, delta, epsilon or zeta to said anion.

REFERENCES:
patent: 4126459 (1978-11-01), Greenwald

Affiliated with

Also associated with

Rating

Photographic processes and compositions employing thioether cont does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic processes and compositions employing thioether cont, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic processes and compositions employing thioether cont will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-559011