Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1989-09-18
1990-09-11
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
503208, 503225, B41M 518
Patent
active
049563335
ABSTRACT:
A heat-sensitive recording material characterized in that a heat-sensitive color-developing layer containing a compound represented by the formula (I), ##STR1## wherein R represents a hydrogen atom or a methyl group, a leuco dye and an acidic substance is formed on a support.
REFERENCES:
patent: 4573062 (1986-02-01), Satake et al.
patent: 4628336 (1986-12-01), Satake et al.
Iwamoto Hirofumi
Kawahara Kenichi
Nomura Masaharu
Tsugawa Hiroaki
Hess Bruce H.
Nields Henry C.
Nippon Kayaku Kabushiki Kaisha
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