Photothermographic materials containing silver halide...

Radiation imagery chemistry: process – composition – or product th – Thermographic process – Heat applied after imaging

Reexamination Certificate

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C523S411000, C523S411000, C523S411000, C523S411000, C523S411000, C523S411000, C523S411000, C430S966000

Reexamination Certificate

active

07026105

ABSTRACT:
Photothermographic materials are designed with increased photospeed by chemical sensitizing the photosensitive silver halide grains with a combination of compounds. A first chemical sensitizer is a specific gold(III)-containing compound and a second chemical sensitizer is a sulfur-containing compound that is a diphenylphosphine sulfide. The molar ratio of the gold (III)-containing compound to the sulfur-containing compound is at least 1:1.

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U.S. Appl. No. 10/731,680 (D-85754), filed herewith, titledMethod For Chemical Sensitization Of Silver Halide For Photothermographic Use,by Lilia P. Burleva et al.
U.S. Appl. No. 10/731,462 (D-87416), filed herewith, titledMethod For Chemical Sensitization Of Silver Halide For Photothermographic Use,by Lilia P. Burleva et al.

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