Method of printing electrically conductive images on dielectric

Details Method of printing electrically conductive images on dielectric Method of printing electrically conductive images on dielectric

1987-02-09

1987-12-01

Lusignan, Michael R.

Coating processes

Electrical product produced

Cellulosic or fibrous base

252500, 4272556, 427287, 427288, 427341, 427342, 528423, B05D 512, B05D 500, C23C 1600

Patent

active

047104015

ABSTRACT:
A process for generating electrically conductive patterns on a dielectric substrate, such as an insulating sheet, which comprises applying to preselected areas of the substrate a preselected concentration of an ink in the form of an oxidizing agent, such as a solution of a ferric salt, e.g., ferric chloride or ferric ethylbenzenesulfonate, and which can also contain a suitable binder or thickening agent, to form printed images on the substrate surface. The resulting printed surface of the substrate is then exposed to an excess of reactant, e.g., pyrrole monomer in vapor phase, which reacts with the oxidizing agent to develop conductive images, as by forming polypyrrole, in those printed areas of the substrate containing the oxidizing agent.

REFERENCES:
patent: 4487667 (1984-12-01), Traynor
patent: 4521450 (1985-06-01), Bjorklund et al.
patent: 4567250 (1986-01-01), Naarmann et al.
patent: 4585695 (1986-04-01), Ogasawara et al.

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