Record receiver having plural interactive leaves or a colorless – Having plural interactive leaves
Patent
1991-07-26
1993-03-23
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having plural interactive leaves
428195, 428913, 428914, B41M 5035, B41M 538
Patent
active
051963922
ABSTRACT:
A thermal transfer printing sheet comprising a substrate having a coating of a polycyclic dye, selected from dioxodibenzofuran, dioxofuranindole and dioxobenzodipyrrole. The polycyclic dye carries pendant phenyl groups which themselves carry a variety of open-chain, cyclic and heterocyclic substituent groups.
Bradbury Roy
Kenyon Ronald W.
Thorp Derek
Hess Bruce H.
Imperial Chemical Industries plc
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