Thermo-developable type diazo copying material with 2-naphthol c

Details Thermo-developable type diazo copying material with 2-naphthol c Thermo-developable type diazo copying material with 2-naphthol c

1983-02-14

1984-12-04

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430159, 430160, 430162, 430180, 430151, 430346, 430348, 430541, 2503161, 2503171, 346 76PH, 3461351, G03C 158, G03C 160, G01D 1510

Patent

active

044865279

ABSTRACT:
A thermo-developable type diazo copying material including a substrate and a heat sensitive recording layer, superposed on said substrate, which consists essentially of a diazo compound, a coupler and a heat-fusible color assistant, characterized in that said heat sensitive recording layer is of the multilayered type comprising a diazo compound-containing layer and a coupler-containing layer, and said coupler is composed of one or two or more of the compounds having the following general formula: ##STR1## wherein X is hydrogen, halogen, an alkyl group having 1-4 carbon atoms or an alkoxyl group having 1-4 carbon atoms; R.sup.1 is an alkyl group having 10-25 carbon atoms; and R.sup.2 is hydrogen or an alkyl group having 1-30 carbon atoms.

REFERENCES:
patent: 3301679 (1967-01-01), Halperin et al.
patent: 3367776 (1968-02-01), Bialczak et al.
patent: 3565629 (1971-02-01), Usbeck et al.
patent: 3642483 (1972-02-01), Kubo et al.
patent: 4387150 (1983-06-01), Yabuta et al.
patent: 4400456 (1983-08-01), Matsuda et al.

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