Photothermal recording medium

Details Photothermal recording medium Photothermal recording medium

2011-08-16

2011-08-16

Hess, Bruce H (Department: 1785)

Record receiver having plural interactive leaves or a colorless

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

Method of use, kit, or combined with marking instrument or...

C430S945000, C503S218000

Reexamination Certificate

active

07998900

ABSTRACT:
A colorless or transparent composition comprises a charge-delocalization compound and a photoacid, wherein the photoacid generates an acid on irradiation or heating, thereby forming a colored change-transfer complex with said compound.

REFERENCES:
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patent: 4657844 (1987-04-01), Shu et al.
patent: 5811369 (1998-09-01), Nagai et al.
patent: 6004719 (1999-12-01), Gaudiana et al.
patent: 2 196 137 (1988-04-01), None
patent: 61-151531 (1986-07-01), None
patent: 62-196652 (1987-08-01), None
patent: 63 221086 (1988-09-01), None
patent: WO 03/059295 (2003-07-01), None
Database WPI, “Sensitization of Direct Printing Recording Material by Forming Charge-Transfer Complex Between N-Vinyl Compound and Organic Halide” Jul. 19, 1975, pp. 33,Derwent Publications Ltd., London, GB.

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