Polymeric mordant containing nitrogen-coordinating ligand...

Details Polymeric mordant containing nitrogen-coordinating ligand... Polymeric mordant containing nitrogen-coordinating ligand...

G - Physics

03

C

96/28, 402/321,

G03C 8/56 (2006.01)

Patent

CA 1238140

-0- POLYMERIC MORDANT CONTAINING NITROGEN- COORDINATING LIGAND FOR METALLIZABLE DYES Abstract of the Disclosure Photographic elements and diffusion transfer assemblages are described which contain a novel mor- dant comprising a polymeric backbone having appended thereto nitrogen-coordinating ligands having the formula: Image wherein D1, D2, and D3 each indepen- dently represents the atoms necessary to complete an aromatic heterocyclic nucleus having at least one ring of 5 to 7 atoms. In a preferred embodiment, the mordant comprises recurring units having the formula: Image wherein: R1 and R2 each independently represents hydrogen or an alkyl or substituted alkyl group having from 1 to about 6 carbon atoms; Link represents a bivalent linking group; and LIG represents a nitrogen-coordinating ligand as described above.

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