Color photographic element containing improved heterocyclic...

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

Reexamination Certificate

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Details

C430S551000, C430S599000, C430S600000, C430S607000, C430S613000, C430S614000, C430S615000, C430S627000, C430S630000

Reexamination Certificate

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06887656

ABSTRACT:
Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprises(1) a thiadiazole, or(2) an oxadiazole, or(3) a 1,2,4 triazole bearing an amido substituent, and does not contain a hydroxyl or thiol group or their tautomeric equivalents on the azole ring.

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patent: 6190848 (2001-02-01), Boff et al.
patent: 6228572 (2001-05-01), Vargas et al.
patent: 6316177 (2001-11-01), Allway et al.
patent: 6319660 (2001-11-01), Allway et al.
patent: 6350564 (2002-02-01), Bringley et al.
patent: 6589724 (2003-07-01), Singer et al.

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