Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1989-10-27
1990-12-25
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
049803360
ABSTRACT:
A heat-sensitive recording material wherein 1,2-bis(3,4-dimethylphenyl)ethane is contained as a sensitizer in a color-forming layer comprising a usually colorless or light-colored coupling substance and a developer which causes coloring of the coupling substance upon heating.
REFERENCES:
patent: 4601863 (1986-07-01), Shioi et al.
Akutsu Mitsuo
Iwakura Syuji
Oya Keiji
Tabata Keiji
Adeka Argus Chemical Co. Ltd.
Hess Bruce H.
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