Pressure-sensitive or heat-sensitive recording material and nove

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

1978-01-30

1980-02-05

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26032687, 282 275, 427151, 544 62, 544151, 544405, 546196, C07D31102

Patent

active

041872339

ABSTRACT:
A pressure- or heat-sensitive recording material which contains as color former at least one 2,2-diarylchromeno compound of the formula ##STR1## wherein V.sub.1 and V.sub.2, each independently of the other, represent hydrogen, halogen, lower alkyl or lower alkoxy,

REFERENCES:
patent: 3567605 (1971-03-01), Becker
patent: 3904642 (1975-09-01), Mach et al.
patent: 3910912 (1975-10-01), Scheuermann et al.
Geissman, JACS., 62, 1363 (1940).
Zwanenburg et al., J. Royal Netherlands Chem. Soc., 94, 8 (1975).
Zwanenburg et al., 94, 215 (1975).
Zwanenburg et al., 95, 97 (1976).

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