Photographic acetanilide couplers with novel ballast group and p

Details Photographic acetanilide couplers with novel ballast group and p Photographic acetanilide couplers with novel ballast group and p

1987-10-30

1989-04-25

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430389, 430505, 430556, 430557, G03C 736

Patent

active

048247715

ABSTRACT:
Novel photographic acetanilide dye-forming couplers comprise a group comprising a stabilizer moiety represented by the formula: ##STR1## wherein R.sup.2 is halogen or alkoxy having 1 to 4 carbon atoms; R.sup.3 is hydrogen, halogen, alkyl or alkoxy; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are individually alkyl; ##STR2## R.sup.8 and R.sup.9 are individually hydrogen or alkyl; R.sup.10 is hydrogen, alkyl or aryl; and X is a linking group. Such couplers provide advantageous stability in dyes formed from the couplers. These couplers are useful in photographic silver halide materials and processes.

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Research Disclosure, Dec. 1978, Item No. 17643, vol. 176, Kenneth Mason Publications Ltd., Hampshire, England.

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