Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Reexamination Certificate
2005-04-05
2005-04-05
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
C430S631000, C430S627000, C430S642000, C430S628000, C430S634000, C430S639000
Reexamination Certificate
active
06875565
ABSTRACT:
A silver halide emulsion which comprises silver halide tabular grains showing an average thickness lower than 0.15 μm, an average diameter of at least 1.20 μm and an average aspect ratio of at least 8:1 dispersed in a hydrophilic colloid mixture comprising from 10% to 30% by weight of dextran, from 20% to 40% by weight of a hydrogenated polysaccharide having an average molecular weight equal to or lower than 10,000, and from 40% to 60% by weight of gelatin and photographic element comprising it.
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“Photographic Silver Halide Emulsions, Preparations, Addenda, Systems and Processing,” Research Disclosure No. 38597, Sep. 1996, Item IX.
Ceruti Luca
Fava Simona
Ferrania S.p.A.
Letscher Geraldine
Mark A. Litman & Associates P.A.
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