Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Reexamination Certificate
2006-11-07
2006-11-07
Letscher, Geraldine (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
C430S617000, C430S618000, C430S620000, C430S449000, C430S348000
Reexamination Certificate
active
07132228
ABSTRACT:
Solid particle dispersions of certain ascorbic acid esters are prepared in the presence of at least 0.5 and less than 50 weight % of a particle growth modifier based on the weight of the ascorbic acid ester. The particle growth modifier is an alkyl carboxylic acid having from 8 to 22 carbon atoms, an alkyl ester of glycerol wherein the alkyl moiety has from 8 to 22 carbon atoms, or a stereoisomer of the ascorbic acid ester. The resulting aqueous solid particle dispersion can be used in various thermally developable materials including thermographic and photothermographic materials.
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JP Abstract 60-133442.
U.S. Appl. No. 10/744,542, filed Dec. 22, 2003, titledStable Developer Dispersions For Color Photothermographic Systems,by D.H. Levy et al.
Brick Mary C.
Lynch Doreen C.
Ramsden William D.
Eastman Kodak Company
Leichter Louis M.
Letscher Geraldine
Tucker J. Lanny
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