Method for stabilizing organic substrate materials including pho

Details Method for stabilizing organic substrate materials including pho Method for stabilizing organic substrate materials including pho

1979-07-11

1981-01-13

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Imaged product

Multilayer

8506, 8447, 260 4575R, 260 4575C, 260 4575M, 260 4575N, 260 458NZ, 10628718, 430 17, 430216, 430372, 430512, 430517, 430551, 430559, G03C 140, G03C 700, G03C 184, G03C 110

Patent

active

042450187

ABSTRACT:
The light stability of organic substrate materials such as photographic dyes is improved by the copresence of at least one of the complexes shown by following formulae I, II, III, or IV ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a hydrogen atom, a halogen atom, a cyano group or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded directly or through a divalent connecting group to the carbon atom of a benzene ring; or R.sup.1 and R.sup.2 ; R.sup.2 and R.sup.3 ; or R.sup.3 and R.sup.4 combine to represent the non-metallic atoms necessary to complete a 6-membered ring; R.sup.5 and R.sup.8 each represents a hydrogen atom, an alkyl group, or an aryl group; R.sup.6 represents a hydrogen atom, an alkyl group, an aryl group, or a hydroxyl group; R.sup.7 represents an alkyl group or an aryl group; and Z represents the non-metallic atoms necessary to complete a 5-membered or 6-membered ring.

REFERENCES:
patent: 2615860 (1952-10-01), Burgess
patent: 3361710 (1968-01-01), Sparks
patent: 3361712 (1968-01-01), Cyba
patent: 4050938 (1977-09-01), Smith et al.

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