Recording material

Details Recording material Recording material

2007-04-17

2007-04-17

Chu, John S. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

C430S157000, C430S176000

Reexamination Certificate

active

10690779

ABSTRACT:
A recording material comprises, on a support, a recording layer including a diazo compound, a coupler compound that can react with the diazo compound to form a color, and a metal salt, wherein the coupler compound is represented by the general formula (1):General Formula (1)wherein R1, R2, R3, and R4each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, or an amino group; R5, R6, R7, R8, and R9each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acyl group, a carbamoyl group, an acylamino group, a sulfamoyl group, a sulfonamide group, a cyano group, or a nitro group; and X represents an oxygen atom or a sulfur atom.

REFERENCES:
patent: 3883504 (1975-05-01), Schickfluss et al.
patent: 4540648 (1985-09-01), Scheler
patent: 4-135787 (1992-05-01), None
patent: 4-144784 (1992-05-01), None
patent: 2001-139563 (2001-05-01), None
patent: 2001-151762 (2001-06-01), None
patent: 2002-003738 (2002-01-01), None
Pierrot, Francois et al “Coupling of diazonium salts with 2-methylbenzothiazoles”, pp. 1049-1051, 1954.

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