Heat developable photographic materials

Details Heat developable photographic materials Heat developable photographic materials

1985-08-20

1987-11-10

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...

430351, 430617, 430619, 430559, 430955, G03C 554, G03C 140

Patent

active

047057378

ABSTRACT:
A heat developable photographic material comprising a support having thereon at least a photosensitive silver halide, a binder, and at least on of base precursors represented by following formula (I) or (II): ##STR1## wherein R represents an alkyl group, an alkylene group, an aryl group, an arylene group, a monovalent or divalent heterocyclic group, each of which may be unsubstituted or substituted; B represents a mono- or di-acidic, nitrogen-containing, sulfur-free base having a pKa of not lower than about 7 and containing 12 carbon atoms or less; x is an integer of 1 when R represents a monovalent group or an integer of 2 when R represents a divalent group, y is the same as x when B represents the mono-acidic base or an integer of 1 when B represents the di-acidic base; and z is an integer of 2 when R represents a monovalent group and B represents the di-acidic base or otherwise an integer of 1; R' represents an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group or a heterocyclic group, each of which may be substituted or unsubstituted; X represents a substituent; p represents an integer of 0 to 4; and m' represents the valence number of M whereby stability with the passge of time prior to heat development is improved.

REFERENCES:
patent: 3220846 (1965-11-01), Tinker et al.
patent: 4060420 (1977-11-01), Merkel et al.
patent: 4088496 (1978-05-01), Merkel
patent: 4500626 (1985-02-01), Naito et al.
patent: 4514493 (1985-04-01), Hirai et al.
Research Disclosure, No. 151, Nov. 1976, Altland et al., pp. 9-11, Disclosure No. 15109.

Affiliated with

Also associated with

Rating

Heat developable photographic materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat developable photographic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat developable photographic materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1067714