Thermal recording materials

Details Thermal recording materials Thermal recording materials

2005-05-10

2005-05-10

Hess, B. Hamilton (Department: 1774)

Record receiver having plural interactive leaves or a colorless

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

Identified organic electron acceptor other than phenolic resin

C503S207000, C503S209000, C503S221000, C503S226000

Reexamination Certificate

active

06890881

ABSTRACT:
Disclosed are a thermal recording material having a thermal recording layer containing an electron-donating dye precursor and an electron-accepting compound, wherein the thermal recording layer comprises an electron-accepting compound of the general formula (I),(each of R1and R2is a hydrogen atom or an alkyl group), and a specific aromatic phosphorus compound, and a thermal recording material wherein said thermal recording layer comprises the electron-accepting compound of the above general formula (I) and an undercoat layer formed on a substrate comprises an organic pigment having a specific morphological structure.The former thermal recording material is excellent particularly in thermal response as well as heat resistance and light resistance of a ground and images in storage, and the latter thermal recording material is excellent particularly in whiteness.

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