Conductive composition and production method thereof, antistatic coating material, antistatic coating, antistatic film, optical filter, and optical information recording medium, and capacitors and production method thereof

• US 20060076541A1
• Filed: 10/06/2005
• Published: 04/13/2006
• Est. Priority Date: 10/08/2004
• Status: Active Grant

• Current Assignee: Shin-Etsu Polymer Company Limited (Shin-Etsu Chemical Company Limited)
• Original Assignee: Shin-Etsu Polymer Company Limited (Shin-Etsu Chemical Company Limited)
• Inventors: Yoshida, Kazuyoshi, Higuchi, Yutaka, Ning, Tailu, Abe, Rika, Masahiro, Yasushi
• Granted Patent: US 7,842,196 B2
• Time in Patent Office: Days
• US Class Current: 252/500
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 65/00 Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain C08L7/00 - C08L57/00, C08L61/00 take precedence; Compositions of derivatives of such polymers
• CPC Class Codes: C09D 165/00 Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain C09D107/00 - C09D157/00, C09D161/00 take precedence; Coating compositions based on derivatives of such polymers
• CPC Class Codes: H01B 1/127 comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
• CPC Class Codes: H01G 11/48 Conductive polymers
• CPC Class Codes: H01G 11/52 Separators
• CPC Class Codes: H01G 11/56 Solid electrolytes, e.g. gels; Additives therein
• CPC Class Codes: H01G 9/028 Organic semiconducting electrolytes, e.g. TCNQ
• CPC Class Codes: H01G 9/0425 specially adapted for cathode
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors

Abstract

A conductive composition comprises a π conjugated conductive polymer, a polyanion, and a hydroxy group-containing aromatic compound containing two or more hydroxy groups. An antistatic coating material comprises the conductive composition and a solvent. An antistatic coating is produced by applying the antistatic coating material. A capacitor comprises an anode composed of a porous valve metal body; a dielectric layer formed by oxidizing a surface of the anode; and a cathode formed on the dielectric layer, wherein the cathode has a solid electrolyte layer comprising the conductive composition.

Claims

1. A conductive composition comprising:

a π

conjugated conductive polymer, a polyanion, and a hydroxy group-containing aromatic compound containing two or more hydroxy groups.

2. The conductive composition according to claim 1, wherein the hydroxy group-containing aromatic compound is represented by the following formula (1):

3. The conductive composition according to claim 1, wherein the hydroxy group-containing aromatic compound contains a sulfo group and/or a carboxy group.

4. The conductive composition according to claim 1, further comprising a dopant.

5. The conductive composition according to claim 1, further comprising a binder resin.

6. The conductive composition according to claim 5, wherein the binder resin is at least one selected from the group consisting of polyurethane, polyester, acryl resin, polyamide, polyimide, epoxy resin, polyimide silicone, and melamine resin.

9. An antistatic coating material comprising:

the conductive composition according to claim 1, and a solvent.

10. An antistatic coating produced by applying the antistatic coating material according to claim 9.

11. An antistatic film comprising:

a film base and the antistatic coating according to claim 10 formed on at least one side of the film base.

12. An optical filter comprising:

the antistatic coating according to claim 10.

13. An optical information recording medium comprising:

the antistatic coating according to claim 10.

14. A capacitor comprising:

an anode composed of a porous valve metal body;

a dielectric layer formed by oxidizing a surface of the anode; and

a cathode formed on the dielectric layer,

wherein the cathode has a solid electrolyte layer comprising the conductive composition according to claim 1.

15. The capacitor according to claim 14, wherein the cathode further comprises an electrolyte.

7. A production method of a conductive composition comprising:

a polymerization step for dispersing or dissolving a precursor monomer, which forms a π

conjugated conductive polymer, in a solvent, and polymerizing the precursor monomer in a presence of a polyanion by a chemical oxidative polymerization, and

an addition step for adding a hydroxy group-containing aromatic compound containing two or more hydroxy groups.

8. The production method of the conductive composition according to claim 7, further comprising a filtration step for partially removing free ions by an ultrafiltration method.

16. A production method of a capacitor, comprising the steps of:

applying a conductive polymer solution, which comprises a π

conjugated conductive polymer, a polyanion, a hydroxy group-containing aromatic compound, and a solvent, to a surface of a dielectric layer in a capacitor intermediate, which comprises an anode composed of a porous valve metal body and the dielectric layer formed by oxidizing a surface of the anode, and

drying the conductive polymer solution.