Image-receiving element for the dye diffusion transfer process with metal complex of diazabicyclooctane
AssigneeAgfa-Gevaert
InventorsPeter Bergthaller, Guenter Helling, Jurgen Strauss
Life of this patent
Estimating the term…
Abstract
Nickel complexes of diazabicyclooctane derivatives of one of the following formulae I and II are useful metallizing agents for the formation of metal complexed image dyes in image receiving elements for the dye diffusion transfer process ##STR1## In these formulae R.sup.1 represents an n-functional aliphatic hydrocarbon radical optionally containing carbocyclic or heterocyclic groups, carbonyl groups, sulphonyl groups and/or heteroatoms (O, S, N) as intermediate members; R.sup.2 and R.sup.3 represent hydrogen or alkyl; A.sup..crclbar. represents an anion; and n represents a number of from 1 to 5.
Claims2
An image receiving element for the dye diffusion transfer process comprising a dyeable layer on a layer support said dyeable layer being dyeable by diffusible anionic image dyes and containing a metallizing agent for the formation of metal-dye-complexes when said image dyes contain chelatable groups, wherein the improvement comprises said metallizing agent is a nickel complex of a compound of one of the following general formulae I and II ##STR12## wherein R.sup.1 represents an n-functional aliphatic hydrocarbon radical optionally containing one or a plurality of intermediate members selected from the group consisting of carbocyclic groups, heterocyclic groups, carbonyl groups, sulfonyl groups and oxygen, sulfur and nitrogen heteroatoms;
- R.sup.2 and R.sup.3 represent hydrogen or alkyl;
- A.sup..crclbar. represents an anion;
- and
- n represents a number of from 1 to 5.
Dependencies are inferred from the claim text.