Process for the production of thermo-developable type diazo copy

Details Process for the production of thermo-developable type diazo copy Process for the production of thermo-developable type diazo copy

1982-12-01

1984-08-21

Bowers, Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430151, 430168, 430169, 430176, 430177, 430179, 430350, G03C 160, G03C 154, G03C 158, G03C 174

Patent

active

044670249

ABSTRACT:
A process for the production of a thermo-developable type diazo copying material which comprises the steps of adding a heat fusible color assistant having a melting point of 50.degree. to 150.degree. C. to at least one selected from the group consisting of (a) an aqueous dispersion A containing a diazonium salt and fine particles of a hydrophobic resin consisting of a polymer of vinyl chloride, vinylidene chloride, styrene, acrylic ester, mechacrylic ester or olefin or a copolymer containing at least one member of aforesaid monomers as the constitution unit or a mixture of said polymer with said copolymer and (b) an aqueous solution or dispersion B containing coupler; then applying these aqueous dispersion A and aqueous solution or dispersion B onto a substrate in the order named; and drying same.

REFERENCES:
patent: 3255011 (1966-06-01), Welch
patent: 3294534 (1966-12-01), Halperin
patent: 3353984 (1967-11-01), Landau
patent: 3520691 (1970-07-01), Scheler 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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