Radiation imagery chemistry: process – composition – or product th – Color imaging process – Stabilizing
Patent
1983-12-15
1985-01-29
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Stabilizing
430512, 430523, 430551, 430931, 430961, G03C 740, G03C 726
Patent
active
044966490
ABSTRACT:
A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains at least one polyalkylpiperidine compound of the formula I ##STR1## in which R is an OH group and R.sub.1 is a group of the formula II ##STR2## or of the formula ##STR3## and X is a group of the formula ##STR4## or of the formula ##STR5## Color images obtained by imagewise exposure and development of this color-photographic recording material show good stability to the action of visible and ultraviolet light.
With respect to the definitions of the substituents and symbols in the formulae, reference is made to the description.
REFERENCES:
patent: 3993655 (1976-11-01), Rasberger et al.
patent: 4148783 (1979-04-01), Rasberger et al.
patent: 4198334 (1980-04-01), Rasberger
patent: 4226999 (1980-10-01), Malherbe et al.
patent: 4268593 (1981-05-01), Leppard et al.
patent: 4452884 (1984-06-01), Leppard
Leppard David G.
Rody Jean
Brown J. Travis
Ciba-Geigy AG
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