Photographic elements containing 2-equivalent pyrazolone magenta

Details Photographic elements containing 2-equivalent pyrazolone magenta Photographic elements containing 2-equivalent pyrazolone magenta

1994-12-22

1996-02-13

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430555, G03C 7384, G03C 7392

Patent

active

054910544

ABSTRACT:
A silver halide photographic element comprising a light sensitive silver halide containing layer which also contains a 2-equivalent pyrazolone magenta coupler, a thiomorpholine dioxide compound which has an alkoxy substituted aryl group substituent on the ring nitrogen, a compound of formula (I) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.3, R.sub.4 and R.sub.31 are independently an alkyl group or H; R.sub.11, R.sub.12 and R.sub.21 are alkyl groups.
The presence of the compound (I) when used with the two-equivalent pyrazolone magenta coupler and compounds (R) and (S), can result in a photographic element with low printout and/or thermal discoloration problems.

REFERENCES:
patent: 4994360 (1991-02-01), Yoshimoto et al.
patent: 5017465 (1991-05-01), Nishijima
patent: 5049482 (1991-09-01), Nishijima et al.
patent: 5145766 (1992-09-01), Leppard et al.
patent: 5236819 (1993-08-01), Kakokura et al.
patent: 5248586 (1993-09-01), Nagaoka et al.
patent: 5362615 (1994-11-01), Hagemann et al.

Affiliated with

Also associated with

Rating

Photographic elements containing 2-equivalent pyrazolone magenta does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic elements containing 2-equivalent pyrazolone magenta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic elements containing 2-equivalent pyrazolone magenta will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-239813