Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1983-06-15
1984-09-04
Louie, Won H.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430553, 430555, 430557, 430617, 430618, 430619, 430620, 430212, 430936, 430341, 430351, 430502, 430505, G03C 102
Patent
active
044697732
ABSTRACT:
A coupler containing in the coupling position a carbamoyloxy group ##STR1## upon oxidative coupling, releases a carbamic acid fragment that, in turn, is capable of thermally releasing ammonia or an amine. Such a carbamoyloxy substituted coupler and carbamic acid fragment are useful in imaging such as in photothermography and thermography. Ammonia or an amine released from the carbamic acid fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The carbamoyloxy substituted coupler also generally is a dye-forming coupler that reacts with the oxidized form of a color developing agent to form a dye. An image is produced in an exposed photothermographic material comprising the carbamoyloxy substituted coupler by thermal development. An image is produced in a thermographic material comprising the carbamoyloxy substituted coupler and a color developing agent by imagewise heating the thermographic material.
REFERENCES:
patent: 3457075 (1969-07-01), Morgan
patent: 3761270 (1973-09-01), deMauriac
patent: 4191574 (1980-03-01), Endo et al.
patent: 4241172 (1980-12-01), Okaniwa et al.
patent: 4264725 (1981-04-01), Reeves
patent: 4299914 (1981-11-01), Fujimatsu et al.
"The Theory of the Photographic Process," Edited by T. H. James, 4th Edition, 1977, pp. 353-361.
Research Disclosure, Dec. 1978, Item No. 17643.
Research Disclosure, Jun. 1978, Item No. 17029.
Research Disclosure, Jan. 1983, Item No. 22534.
Research Disclosure, Oct. 1974, Item No. 12617.
Research Disclosure, Apr. 1978, Item No. 16845.
Adin Anthony
Kovacs Csaba A.
Machiele Delwyn E.
Eastman Kodak Company
Knapp Richard E.
Louie Won H.
LandOfFree
Carbamoyloxy substituted couplers in a photothermographic elemen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbamoyloxy substituted couplers in a photothermographic elemen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbamoyloxy substituted couplers in a photothermographic elemen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1892490