Method of stabilizing organic substrates against the action of l

Details Method of stabilizing organic substrates against the action of l Method of stabilizing organic substrates against the action of l

1978-10-30

1980-12-16

Brown, Travis

Radiation imagery chemistry: process, composition, or product th

Imaged product

Nonsilver image

430213, 430220, 430372, 430544, 430551, 430552, 430554, 430556, 430558, 430559, 430561, 430933, 260 4575R, 260429R, 2604381, 260439R, 8636, 8648, 8664, G03C 700

Patent

active

042398436

ABSTRACT:
The stability of organic substrates having an absorption maximum between 300 and 800 nm in wavelength can be improved by at least one compound represented by the formula (I); ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 eachrepresents an oxygen or sulfur atom, R.sub.1 and R.sub.2 each represents an alkyl, an aryl, a cycloalkyl, an oxocyclalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a divalent connecting group, R.sub.3 represents a hydrogen atom, an alkyl, an aryl, a cycloalkyl, an oxocycloalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a connecting group whereby R.sub.1, R.sub.2 and R.sub.3 may be the same or different and R.sub.1 and R.sub.3 or R.sub.2 and R.sub.3 may combine with each other to form a 5-, 6- or 7- member ring structure.

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Photographic Gelatin, Croome et al., Focal Press. N.Y. .COPYRGT.1965, pp. 76-83.
Stabilization of Photographic Silver Halide Emulsions-Birr Focal Press .COPYRGT.1974 pp. 115-117.
Photographic Emulsions, James, NDC, Park Ridge, N.J. .COPYRGT.1973 pp.24-27.

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