Aliphatic hydroxyl hydrogen bond donating groups on thermal solv

Details Aliphatic hydroxyl hydrogen bond donating groups on thermal solv Aliphatic hydroxyl hydrogen bond donating groups on thermal solv

1993-06-08

1996-01-02

Schilling, Richard

Radiation imagery chemistry: process, composition, or product th

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

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

430218, 430617, 430619, 430546, 430559, G03C 810, G03C 840

Patent

active

054807611

ABSTRACT:
An aqueous-developable chromogenic photographic heat-transferable non-aqueous dye-diffusion-transfer photographic element is disclosed, wherein said element comprises radiation sensitive silver halide, a dye-providing compound that forms or releases a heat-transferable image dye upon reaction of said compound with the oxidation product of a primary amine developing agent, a hydrophilic binder, and a thermal solvent for facilitating non-aqueous diffusion transfer according to formula (I) ##STR1## wherein AH is a hydrogen bond donating group with an aqueous pK.sub.a for proton loss of greater than 6;
L.sup.1 and L.sup.2 are each independently divalent linking groups consisting of groups of 1 to 12 atoms or are independently absent;
m is 1, 2, or 3;
Q comprises a group of 2 to 15 carbon atoms selected from the group consisting of aromatic rings, alkyl chains, alkyl rings, or ring-chain combinations, optionally substituted with substituents, Z, consisting of alkyl groups or halogens;
B is a hydrogen bond accepting group with an aqueous pK.sub.a for proton gain of less than 6;
n is 1 or 2;
the groups AH and B cannot hydrogen bond to form a ring of either 5 or 6 atoms;
R is an alkyl, aryl and alkylaryl group of from 1 to 18 carbon atoms;
the calculated log of the octanol/water partition coefficient (clogP) is greater than 3 and less than 10.

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