Pressure-or heat-sensitive recording material

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

1989-11-28

1991-06-18

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Heavy metal reactant

427151, 503217, 503218, 503220, 503223, B41M 516, B41M 518, B41M 522

Patent

active

050249886

ABSTRACT:
A pressure-sensitive or heat-sensitive recording material in which the color reactant system contains, as main components
(A) a polycyclic compound of the formula ##STR1## in which X is a monocyclic or polycyclic aromatic or heteroaromatic radical,

REFERENCES:
patent: 4688059 (1987-08-01), Schmidt et al.

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