Coating processes – Electrical product produced – Condenser or capacitor
Patent
1996-03-25
1997-09-30
Utech, Benjamin
Coating processes
Electrical product produced
Condenser or capacitor
427307, 427402, B05D 512
Patent
active
056723776
ABSTRACT:
A process for the preparation of polyaniline by an oxidation polymerization of aniline with use of an oxidizing agent and a protonic acid, wherein the pKa value of a byproduct produced by the reduction of the oxidizing agent is greater than the pKa value of the protonic acid. The protonic acid is an aromatic sulfonic acid compound having at least a sulfonic-acid group. A process is also provided for the formation of a solid electrolytic capacitor including an electrolyte of the polyaniline. A method is provided of improving the electrical conductivity of the polyaniline prepared by the above process. The polyaniline is subjected to a heat treatment in a vacuum or an inert gas in which a partial pressure of oxygen is 10 mmHg or below.
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Amano Kosuke
Ishikawa Hitoshi
Kobayashi Atsushi
Satoh Masaharu
NEC Corporation
Utech Benjamin
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