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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 9718905 B1

PDFFull Text
Date of Patent:
Aug. 01, 2017

Filed:

Jul. 03, 2013

Polythiophene, water-soluble electrically conductive polymer using it, and method for producing it

Applicant:

Tosoh Corporation, Yamaguchi, JP;

Inventors:

Hirokazu Yano, Yamaguchi, JP;

Masakazu Nishiyama, Yamaguchi, JP;

Hiroshi Awano, Yamaguchi, JP;

Assignee:

TOSOH CORPORATION, Yamaguchi, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Duc Truong

Int. Cl.
CPC ...
C08F 134/04 (2006.01); C09D 5/24 (2006.01); C09D 145/00 (2006.01); C07D 495/04 (2006.01); C08G 61/12 (2006.01); C07D 495/00 (2006.01);
U.S. Cl.
CPC ...
C08F 134/04 (2013.01); C07D 495/04 (2013.01); C08G 61/126 (2013.01); C09D 5/24 (2013.01); C09D 145/00 (2013.01); C08G 2261/143 (2013.01); C08G 2261/1424 (2013.01); C08G 2261/1452 (2013.01); C08G 2261/43 (2013.01); C08G 2261/512 (2013.01); C08G 2261/54 (2013.01); C08G 2261/64 (2013.01); C08G 2261/90 (2013.01); C08G 2261/94 (2013.01);
Abstract

To provide a water-soluble polythiophene used as an electrically conductive material, and its production method. A polythiophene comprising at least one type of structural units selected from the group consisting of structural units represented by the formula (1), structural units represented by the formula (2), structural units represented by the formula (3), structural units represented by the formula (4), structural units represented by the formula (5) and structural units represented by the formula (6). The polythiophene is obtained by polymerizing at least one thiophene compound selected from the group consisting of a thiophene compound represented by the formula (15), a thiophene compound represented by the formula (16) and a thiophene compound represented by the formula (17) in water or an alcohol solvent in the presence of an oxidizing agent.

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