Thermographic recording materials and coating composition therefor
AssigneePolaroid Corporation
InventorsEdward J. Dombrowski, Jr., Patrick F. King
Life of this patent
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Abstract
This invention relates to the use of 3,5-dihydroxybenzoic acid as an organic acidic reagent in thermographic recording materials comprising a di- or triarylmethane thiolactone dye precursor, silver behenate and a polymeric binder, and in a further embodiment, relates to coating compositions useful in the preparation of the recording materials.
Claims11
A thermographic recording material comprising a di- or triarylmethane thiolactone dye precursor, silver behenate, a polymeric binder and 3,5-dihydroxybenzoic acid.
A one-pot coating composition comprising silver behenate, a film-forming polymer, a di- or triarylmethane thiolactone dye precursor and 3,5-dihydroxybenzoic acid dispersed in an organic solvent.
Dependencies are inferred from the claim text.