Heat-sensitive recording material

Abstract From the Canadian patent

1-16805/+, Heat-sensitive recording material Abstract of the Disclosure, A heat-sensitive recording material comprising a base and on top of, the said base, a heat-sensitive layer containing a cyclic diazo component and a coupling component, the cyclic diazo component being a benzotriazine compound of the formula (I) , wherein Q is -CH2-, -CO- or -SO2- R is hydrogen, hydroxyl, or aryl or, alkenyl each unsubstituted or substituted by halogen hydroxyl, cyano, lower alkoxy, lower alkylthio acyloxy, lower alkoxycarbonyl, or lower alkylsulfonyl or is acyl, acyloxy or acylamino, cycloalkyl or is aryl or aralkyl such as phenyl, phenylalkyl or naphthyl each unsubstituted or substituted on the ring …