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:
Aug. 31, 2021
Filed:
Sep. 29, 2017
Applicant:
Showa Denko K.k., Tokyo, JP;
Inventors:
Takeshi Kawamoto, Tokyo, JP;
Yuka Niimi, Tokyo, JP;
Assignee:
SHOWA DENKO K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 333/72 (2006.01); C08G 61/12 (2006.01);
U.S. Cl.
CPC ...
C07D 333/72 (2013.01); C08G 61/126 (2013.01); C08G 2261/228 (2013.01); C08G 2261/3243 (2013.01); C08G 2261/51 (2013.01);
Abstract
The present invention relates to a fused heteropolycyclic compound represented by formulae (1) and (2), a method for producing the same, and a method for producing a conductive polymer represented by formulae (3) and (4) in which at least one compound represented by formula (2) is used (the symbols in the formulae are as described in the description). The method of the present invention is a method for producing a sulfo-group-containing polyisothianaphthene capable of reducing the use amount of an oxidant or capable of being polymerized without the use of any oxidant.