Thermosensitive recording materials

Details Thermosensitive recording materials Thermosensitive recording materials

1989-09-28

1991-01-08

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Having constituent defined in terms of melting temperature

503209, 503217, 503225, B41M 518

Patent

active

049835688

ABSTRACT:
There is disclosed a thermosensitive recording material comprising an ordinarily colorless or slightly colored dye precursor, an electron receptive compound (developer) coloring said dye precursor by reacting when heated, and a compound of following general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represents hydrogen atom, alkyl, alkenyl or aryl group, and R.sub.1 and R.sub.2 may be different from each other; may also be linked together to form cycloalkyl, cycloether, and the like; and R.sub.3 and R.sub.4 each represents hydrogen atom, alkyl, alkenyl, alkoxy or aryl group and halogen atom, and R.sub.3 and R.sub.4 may be different from each other.

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