Organically soluble conductive polymers

Patent metadata

Field	Value
Publication number	US-12065586-B2
Application number	US-202318466962-A
Country	US
Kind code	B2
Filing date	Sep 14, 2023
Priority date	Dec 4, 2019
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

Polymerize ethylenedioxythiophene (EDOT) in a polymerization process using dinonylnaphthalenesulfonic acid (DNNSA) as the dopant and Fe(III) p-toluenesulfonate (Fe (III) p-TSA) as the oxidizing agent to produce an organically soluble polyethylenedioxythiophene (PEDOT).

First claim

What is claimed is:

1. A conductive polymer coating formed on a surface, comprising:
polyethylenedioxythiophene (PEDOT) doped with a plurality of dinonylnapthalenesulfonic acid (DNNSA) anions, the PEDOT having a resistivity of about 100,000 Ohms or less,
wherein the surface is selected from the group consisting of a metal surface, a carbon allotrope surface, an edge protection layer surface, and a spacecraft surface, wherein the molar ratio of DNNSA to EDOT monomer units is about 1.7.

2. The conductive polymer coating of claim 1 , wherein the surface is the metal surface.

3. The conductive polymer coating of claim 2 , wherein the conductive polymer coating is substantially free of chromates.

4. The conductive polymer coating of claim 1 , wherein the surface is the carbon allotrope surface.

5. The conductive polymer coating of claim 4 , wherein the carbon allotrope surface is a single-walled carbon nanotube.

6. The conductive polymer coating of claim 4 , wherein the carbon allotrope surface is a carbon fiber.

7. The conductive polymer coating of claim 1 , wherein the surface is the edge protection layer surface over an airfoil of an aircraft.

8. The conductive polymer coating of claim 1 , wherein the surface is the spacecraft surface.

9. The conductive polymer coating of claim 8 , wherein the spacecraft surface is a satellite surface.

10. The conductive polymer coating of claim 1 , wherein the PEDOT comprises unfunctionalized monomer units.

11. The conductive polymer coating of claim 1 , wherein the conductive polymer coating a resistivity of about 100,000 Ohms/square.

12. A composition comprising:
polyethylenedioxythiophene (PEDOT) doped with a plurality of dinonylnapthalenesulfonic acid (DNNSA) anions, the PEDOT having a resistivity of about 100,000 Ohms or less; and
a resin selected from the group consisting of a polyvinylbutyral, an ethylene-vinyl acetate, a polyimide, a polyolefin, a polyurethane, a silicone, a polyvinylchloride, a nitrile rubber, and combinations thereof, wherein the molar ratio of DNNSA to EDOT monomer units is about 1.7.

13. The composition of claim 12 , wherein the resin is a polyvinylbutyral.

14. The composition of claim 12 , wherein the resin is ethylene-vinyl acetate.

15. The composition of claim 12 , wherein the resin is polyimide.

16. The composition of claim 12 , wherein the resin is a polyolefin.

17. The composition of claim 12 , wherein the resin is a polyurethane.

18. The composition of claim 12 , wherein the resin is a silicone.

19. The composition of claim 12 , wherein the resin is a polyvinylchloride.

20. The composition of claim 12 , wherein the resin is a nitrile rubber.

Assignees

• Boeing Co

Inventors

• Kinlen Patrick John

Classifications

• C09D165/00

  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 title

• C08G2261/792

  with low-molecular weight dopants · CPC title

• C08G2261/514

  Electron transport · CPC title

• C08G2261/41

  Organometallic coupling reactions · CPC title

• C08G2261/334

  containing heteroatoms · CPC title