Appeal No. 96-3824
Application No. 08/311,635
hydroxylamine compound
from 0.5 to 15 ml/l (as an 85% solution of
diethylhydroxylamine), and
wherein the composition is buffered by a phosphate
to a pH in the range of from 11 to 12.
10. A method for processing an
imagewise exposed colour photographic element
comprising contacting said element with an aqueous
redox amplifier composition comprising a colour
developing agent, hydrogen peroxide or a compound
which provides hydrogen peroxide and a hydroxylamine
compound of the formula:
R 1
OH-N (I)
R 2
1 2
or a salt thereof wherein R and R are each a
substituted or unsubstituted alkyl group of 1-4
carbon atoms and wherein the concentration ranges
are:
hydrogen peroxide from 0.5 to 10
ml/l (as 30% w/w solution),
hydroxylamine compound from
0.5 to 15 ml/l (as an 85% solution of
diethylhydroxylamine), and
wherein the composition is buffered by a phosphate
to a pH in the range of from 11 to 12.
The references of record which are being relied on by the
examiner as evidence of obviousness are:
Nakamura et al. (Nakamura) 4,414,305 November 8,
1983
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