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

1978-11-14

1980-12-30

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, 260 4575R, 260429R, 2604381, 260439R, G03C 700

Patent

active

042424305

ABSTRACT:
Organic substrates, especially photographic dyes, are stabilized against light by using a Cu, Co, Ni, Pd or Pt complex of formula (I). ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1 and R.sub.6 may be the same or different and represent a hydrogen atom or an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group or an arylsulfonyl group; and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be the same or different represent a hydrogen atom, a halogen atom, a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded to a carbon atom on a benzene ring directly or through a divalent linking group, or R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 respectively may combine and represent the non-metallic atomic groupings required to form a 6-membered ring.

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Complete Electron-Transfer Series of the [m-n.sub.4 ]Type, Balch et al., J.A.C.S., 88:22, Nov. 20, 1966, pp. 5201-5209.
Mech. of Oxid. Photodegradation and of UV Stabiz. of Polyolefins, Cicchetti, Adv. Polymer Sci., vol. 7, pp. 70-112 (1970).

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