Pressure-sensitive or heat-sensitive recording material

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

1982-06-07

1984-06-12

Hess, Bruce H.

Recorders

Record receiver deforming

B41M 516, B41M 518, B41M 522

Patent

active

044537441

ABSTRACT:
A pressure-sensitive or heat-sensitive recording material which contains in its color reactant system, as developer for the color former, at least one metal-free compound of the formula ##STR1## wherein R is alkyl of 1 to 12 carbon atoms, cycloalkyl, phenyl, benzyl, or phenyl which is substituted by halogen, nitro, methyl, methoxy, ethoxy or methylenedioxy, and X is hydrogen, halogen, carboxyl, lower alkyl or lower alkoxy.

REFERENCES:
patent: 3244549 (1966-04-01), Farnham et al.
patent: 3244550 (1966-04-01), Farnham et al.
patent: 3451338 (1969-06-01), Baum
patent: 3834929 (1974-09-01), Hayashi et al.
patent: 3937864 (1976-02-01), Kohmura et al.
patent: 4312522 (1982-01-01), Yamaguchi et al.

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