Toning agents for use in thermographic recording materials

Details Toning agents for use in thermographic recording materials Toning agents for use in thermographic recording materials

2007-02-20

2007-02-20

Hess, Bruce H. (Department: 1774)

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Method of use, kit, or combined with marking instrument or...

C503S209000, C503S212000

Reexamination Certificate

active

11257480

ABSTRACT:
A thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element comprising at least one substantially light-insensitive organic silver salt, at least one organic reducing agent therefor in thermal working relationship therewith, at least one binder and at least one toning agent represented by formula (I):wherein X represents the optionally substituted atoms necessary to form a 6-membered ring.

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