Patent 7169543 was granted and assigned to Eastman Kodak on January, 2007 by the United States Patent and Trademark Office.
Photothermographic materials contain one or more blocked aliphatic thiol compounds in an amount of at least 1 mg/m2 as stabilizers. These compounds have a calculated octanol-water partition coefficient (c log P value) of 2.0 or greater, and an N value equal to or greater than 6.5.