Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Reexamination Certificate
2005-08-09
2005-08-09
Le, Hoa Van (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
C430S445000, C430S448000, C430S488000
Reexamination Certificate
active
06927021
ABSTRACT:
A photographic developer composition for use in the development of a black and white silver halide photographic element said composition comprises at least one developing agent and, in an amount sufficient to inhibit sludge deposition, one or more compounds selected from compounds having the formulain-line-formulae description="In-line Formulae" end="lead"?X—R1—CONH-A-S—S—B—NHCO—R2—Y (I)in-line-formulae description="In-line Formulae" end="tail"?whereinA and B are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group;R1and R2are each independently a substituted or unsubstituted aliphatic, alicyclic, aromatic or heterocyclic group;X and Y are each independently a solubilizing group;and compounds having the formulain-line-formulae description="In-line Formulae" end="lead"?X—R1—CONH-A-S-M (II)in-line-formulae description="In-line Formulae" end="tail"?wherein A, R1and X are as defined above, andM is either a hydrogen atom or a cationic species if the sulfur atom is in its ionized form.
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JP Abstract 07311430.
JP Abstract 04299338.
JP Abstract 06258780.
Magee Paul M.
Parker Brian J.
Pightling Nicholas A.
Eastman Kodak Company
Le Hoa Van
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