Water dispersible polypyrroles made with polymeric acid colloids for electronics applications
AssigneeE.I. du Pont de Nemours and Company
InventorsChe-Hsiung Hsu, Hjalti Skulason, Eric Maurice Smith
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Abstract
Compositions are provided comprising aqueous dispersions of at least one polypyrrole and at least one colloid-forming polymeric acids at methods of making such compositions. The new compositions are useful in electronic devices including organic electronic devices such as organic light emitting diode displays, memory storage, electromagnetic shielding, electrochromic displays, and thin film transistors, field effect resistance devices.
Claims13
A method of making a composition comprising an aqueous dispersion of a polypyrrole and at least one colloid-forming polymeric acid, said method comprising forming a combination of water, at least one pyrrole monomer, at least one colloid-forming polymeric acid, a co-acid, and an oxidizing agent, in any order, provided that at least a portion of the colloid-forming polymeric acid is present when at least one of the pyrrole monomer and the oxidizing agent is added.
Dependencies are inferred from the claim text.