Pressure-or heat-sensitive recording material

Details Pressure-or heat-sensitive recording material Pressure-or heat-sensitive recording material

B - Operations, Transporting

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B41M 5/136 (2006.01) B41M 5/145 (2006.01) B41M 5/323 (2006.01) B41M 5/327 (2006.01)

Patent

CA 2004229

A pressure-sensitive or heat-sensitive recording material in which the colour reactant system contains, as main components (A) a polycyclic compound of the formula (1) Image in which X is a monocyclic or polycyclic aromatic or heteroaromatic radical, Y is a substituent detachable as an anion, Q1 is-O-,-S-, Image or Image Q2 is -CH2-, -CO-, -CS- or-S02- and R is hydrogen, C1-C12alkyl, C5-C10cycloalkyl, aryl such as phenyl or aralkyl such as benzyl, and ring A is an aromatic or heterocyclic radical having 6 ring atoms, which can have an aromatic fused ring, it being possible for both ring A and the fused ring to be substituted, (B) an organic condensation component capable of forming a chromogenic compound with component (A) and (C) an electron-withdrawing and a colour-developing component.

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