The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 2022
Filed:
Feb. 04, 2021
Kemet Electronics Corporation, Fort Lauderdale, FL (US);
Ajaykumar Bunha, Simpsonville, SC (US);
Antony P. Chacko, Simpsonville, SC (US);
Yaru Shi, Simpsonville, SC (US);
Qingping Chen, Simpsonville, SC (US);
Philip M. Lessner, Simpsonville, SC (US);
KEMET Electronics Corporation, Fort Lauderdale, FL (US);
Abstract
An improved formulation of conductive polymer is provided. The formulation comprises a conductive polymer and a polyanion wherein the polyanion is a copolymer comprising groups A, B and C represented the ratio of Formula A:ABC  Formula Awherein:A is polystyrenesulfonic acid or salt of polystyrenesulfonate;B and C separately represent polymerized units substituted by a group selected from:—C(O)ORwherein Ris selected from the group consisting of:—(CHR)—R. All other groups are defined. The conductive polymer has an average particle size of at least 1 nm to no more than 10 microns.