Coating compositions for the production of a recording material
AssigneeCiba-Geigy Corporation
InventorManuel Cespon
Life of this patent
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Abstract
Coating compositions for the production of a pressure-sensitive recording material based on a color former composition and a color developer composition. The color developer composition contains, as developer, at least two water-soluble inorganic metal salts, at least one of which is a nitrate, and is preferably in the form of a wax emulsion. Preferred color developers are mixtures of halides and nitrates.
Claims12
A coating composition for the production of a pressure-sensitive recording material based on a color former composition and a color developer composition, said color developer composition containing, a color developer consisting essentially of a mixture of at least two water-soluble inorganic metal salts, including at least one nitrate with a molecular weight of 150 to 350 and at least one halide with a molecular weight of 120 to 280.
Dependencies are inferred from the claim text.