Process for the preparation of an optically transparent and elec

Details Process for the preparation of an optically transparent and elec Process for the preparation of an optically transparent and elec

1980-07-03

1982-09-07

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156635, 156667, 252 792, 252 794, C23F 102, B44C 122

Patent

active

043482554

ABSTRACT:
An optically transparent and electrically conductive film pattern on a substrate, e.g., an electrooptical display plate provided with a patterned transparent electrode layer, is prepared by a process in which an optically transparent layer of electrically conductive material, coated on the substrate, is removed in predetermined areas by an etching treatment. In this process, the areas of the optically transparent layer on the substrate which are to be removed by etching are printed with an etchant composition which contains an etching agent for the electrically conductive material. The composition is then allowed to remain in contact with the electrically conductive material in order to etch through the areas covered by the composition. Finally, the products formed by reaction of the etchant products formed by reaction of the etchant with the conductive material are removed together with the unspent portions of the composition.

REFERENCES:
patent: 2127781 (1938-08-01), McKay
patent: 2944926 (1960-07-01), Gaiser
patent: 3483027 (1969-12-01), Ritzerfield et al.
patent: 3647508 (1972-03-01), Gorrell

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