Thermosensitive coloring composition and reversible thermosensit

Details Thermosensitive coloring composition and reversible thermosensit Thermosensitive coloring composition and reversible thermosensit

1996-05-14

1997-12-30

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Method of use, kit, or combined with marking instrument or...

503216, 503225, B41M 530

Patent

active

057030057

ABSTRACT:
A thermosensitive coloring composition is disclosed which includes a coloring agent and a color developer of the formula: ##STR1## wherein R.sup.1 represents hydrogen, a halogen, a hydroxyl group, an alkyl group or an alkoxy group, R.sup.2 represents a C.sub.1-8 aliphatic hydrocarbon group, A represents a divalent aliphatic hydrocarbon group, B represents a substituted or non-substituted aromatic or aliphatic divalent group, Y and Z each represent a hetero atom-containing divalent group, n is an integer of 1-3 and p and q are each an integer of 0 or 1. A reversible thermosensitive recording medium includes a support and a thermosensitive layer of the above coloring composition formed thereon.

REFERENCES:
patent: 5296439 (1994-03-01), Maruyama et al.

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