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US 6,146,823 AGranted
Thermographic image-recording element
AssigneeFuji Photo Film Co., Ltd.
InventorKazunobu Katoh
Life of this patent
Estimating the term…
Abstract
An acetylene compound is used in a thermographic image-recording element comprising on a support an image-recording layer containing a non-photosensitive organic silver salt, a reducing agent therefor, and a thermoplastic polymer binder. The element can be heat developed at lower temperatures.
Claims9
A thermographic image-recording element comprising on a support an image-recording layer containing a non-photosensitive organic silver salt, a reducing agent capable of reducing the organic silver salt added to the image-recording layer as a solid dispersion in water, and a thermoplastic polymer binder,
- said element further comprising a compound of the following formula (I):
- A.sub.1 --C.tbd.C--A.sub.2 (I)
- wherein A.sub.1 and A.sub.2 may be the same or different and represent hydrogen, alkyl groups having up to 16 carbon atoms in total, or aromatic ring groups, at least one of A.sub.1 and A.sub.2 is an alkyl group of up to 16 carbon atoms in total having a hydroxyl group as a substituent, or an aryl group.
Dependencies are inferred from the claim text.