Heat-sensitive recording material

Details Heat-sensitive recording material Heat-sensitive recording material

1998-09-01

2000-01-25

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430151, 430156, 430157, 430171, 430182, G03F 7016

Patent

active

060176725

ABSTRACT:
A heat-sensitive recording material having formed on a support a heat-sensitive recording layer containing a diazonium salt and a coupling component, wherein the diazonium salt is a compound represented by the following formula (1): ##STR1## wherein R.sup.1 represents an alkyl group or an aryl group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each independently represents a hydrogen atom or an alkyl group, at least one of R.sup.2, R.sup.3, R.sup.4, and R.sup.5 represents an alkyl group, and R.sup.2 and R.sup.3, or R.sup.4 and R.sup.5, or R.sup.1 and R.sup.3, or R.sup.1 and R.sup.4, may combine with each other to form a ring; and X.sup.- represents an anion.

REFERENCES:
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patent: 4400458 (1983-08-01), Walkow et al.
patent: 4956251 (1990-09-01), Washizu et al.
patent: 4965166 (1990-10-01), Hosoi et al.
patent: 4980260 (1990-12-01), Shinozaki et al.
patent: 5935756 (1999-08-01), Kaifu et al.

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