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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.:

US 9562293 B1

PDFFull Text
Date of Patent:
Feb. 07, 2017

Filed:

Mar. 01, 2012

Polymerization solution, conductive polymer film obtained from the polymerization solution, polymer electrode, and solid electrolytic capacitor

Applicants:

Kenji Machida, Tokyo, JP;

Sekihiro Takeda, Tokyo, JP;

Ryo Muroi, Tokyo, JP;

Nozomu Kamiyama, Tokyo, JP;

Masashi Ozawa, Tokyo, JP;

Inventors:

Kenji Machida, Tokyo, JP;

Sekihiro Takeda, Tokyo, JP;

Ryo Muroi, Tokyo, JP;

Nozomu Kamiyama, Tokyo, JP;

Masashi Ozawa, Tokyo, JP;

Assignee:

NIPPON CHEMI-CON CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Eric Thomas

Assistant Examiner:

Arun Ramaswamy

Int. Cl.
CPC ...
H01G 9/02 (2006.01); H01G 9/04 (2006.01); H01G 9/145 (2006.01); H01G 9/00 (2006.01); C25B 3/00 (2006.01); C25B 3/10 (2006.01); H01G 9/028 (2006.01); H01G 9/15 (2006.01); C08K 5/43 (2006.01); H01B 1/12 (2006.01); H01G 9/042 (2006.01);
U.S. Cl.
CPC ...
C25B 3/10 (2013.01); C08K 5/43 (2013.01); H01B 1/127 (2013.01); H01G 9/0036 (2013.01); H01G 9/028 (2013.01); H01G 9/042 (2013.01); H01G 9/15 (2013.01); C08G 2261/3223 (2013.01); C08G 2261/51 (2013.01); C08G 2261/592 (2013.01); C08G 2261/94 (2013.01); Y10T 428/31533 (2015.04);
Abstract

Disclosed is a polymerization solution for electrolytic polymerization having a small environmental load, having excellent economic efficiency and capable of producing a conductive polymer exhibiting excellent heat resistance. The polymerization solution has: a solvent consisting of 100 to 80% by mass of water and 0 to 20% by mass of an organic solvent; at least one monomer selected from the group consisting of 3,4-disubstituted thiophenes; and at least one organic non-sulfonate supporting electrolyte having an anion with the molecular weight of 200 or more. A conductive polymer film densely filled with polymer particles is obtained by performing electrolytic polymerization using the polymerization solution. A polymer electrode provided with the conductive polymer film exerts excellent heat resistance and the electrochemical activity of the polymer electrode will hardly deteriorate even when being subjected to high temperatures. Moreover, a solid electrolyte capacitor containing the conductive polymer layer obtained by performing electrolytic polymerization using the polymerization solution exhibits low dielectric loss and equivalent series resistance and exerts excellent heat resistance.

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