Thermally-responsive record material

Details Thermally-responsive record material Thermally-responsive record material

1991-06-05

1992-11-17

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

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

Having nonchromogenic liquid spread-control or...

503214, 503216, 503217, 503221, B41M 530

Patent

active

051643570

ABSTRACT:
An improved heat-sensitive recording material is disclosed comprising a substrate, a binder, a chromogenic material, an electron-accepting color developer which reacts with said chromogenic material to form a color, and a color-stabilizing resin. The color stabilizing resin comprises an addition product of a diolefinic alkylated or alkenylated cyclic hydrocarbon or, an addition product of a phenol and a diolefinic alkylated or alkenylated cyclic hydrocarbon. The color-stabilizing resin, dye, and developer, have a weight percent resin phenolic group of about 5 or less. The heat-sensitive recording material has a fade index greater than 45. Imaged recording materials according to the invention resist fading when exposed to temperatures of 60.degree. C. for prolonged periods such as twenty-four hour oven tests.

REFERENCES:
patent: 4470057 (1984-09-01), Glanz
patent: 4540998 (1985-09-01), Bodmer et al.
patent: 4573063 (1986-02-01), Miller et al.
patent: 4880766 (1989-11-01), Miller et al.

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