Invention Grant
- Patent Title: Electrolytic capacitor including conductive polymer with copolymer dopant and conductive polymer dispersion
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Application No.: US15702655Application Date: 2017-09-12
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Publication No.: US10685787B2Publication Date: 2020-06-16
- Inventor: Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@729a00dd
- Main IPC: H01G9/028
- IPC: H01G9/028 ; H01B1/12 ; H01G9/15 ; C08L65/00 ; H01G9/048

Abstract:
An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a conductive polymer layer covering at least a part of the dielectric layer. The conductive polymer layer includes a conductive polymer and a polymer dopant. The polymer dopant includes a copolymer that includes a first monomer unit and a second monomer unit. The first monomer unit has a sulfonate group. Time second monomer unit has a functional group represented by a formula (i); —CO—R1—COOH (where R1 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms, an aromatic group, or a divalent group —OR2—, R2 representing an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic group).
Public/Granted literature
- US20180005760A1 ELECTROLYTIC CAPACITOR AND CONDUCTIVE POLYMER DISPERSION Public/Granted day:2018-01-04
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