Patent Number: 8,715,531

Title: Actuator

Abstract: A conductive polymer doped with a dopant can be expanded and contracted when electrically oxidized and reduced in a driving electrolytic solution containing an anion, and thereby can act as an actuator element in an actuator. The anion is a fluorine-containing ion derived from a strong acid, and the dopant is an aromatic sulfonate ion free of fluorine. The conductive polymer is a polymer containing a 5-membered heterocyclic moiety as a repeating unit, such as a polypyrrole or a polythiophene. When the conductive polymer is in an oxidized state, at least part of the 5-membered heterocyclic moieties has a carbonyl group.

Inventors: Qian; Pu (Wako, JP), Kagawa; Kazuhiro (Wako, JP), Tanaka; Akihisa (Wako, JP)

Assignee: Honda Motor Co., Ltd.

International Classification: H01B 1/00 (20060101); C08K 5/15 (20060101); H01B 1/12 (20060101); C08K 5/1535 (20060101)

Expiration Date: 5/06/12018