Electrostatic dissipative compositions and methods thereof

Patent metadata

Field	Value
Publication number	US-10100240-B2
Application number	US-201615252029-A
Country	US
Kind code	B2
Filing date	Aug 30, 2016
Priority date	Aug 30, 2016
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

Compositions of the present disclosure comprise electrostatic dissipative compositions comprising a first polymer, a second polymer, and a naphthyl sulfonic acid. Methods of the present disclosure comprise heating a vehicle component by applying a voltage to a surface of a composition disposed on a vehicle component. The composition comprises a first polymer and a second polymer.

First claim

What is claimed is:

1. A method of heating a vehicle component, comprising:
depositing a composition onto a vehicle component, the composition comprising:
a first polymer;
a second polymer; and
at least one of a naphthyl sulfonic acid, an anthracenyl sulfonic acid, and a pyrenyl sulfonic acid; and

applying a voltage to a surface of the composition disposed on the vehicle component.

2. The method of claim 1 , wherein applying the voltage to the surface of the composition at least partially melts solid water disposed on a surface of the vehicle component.

3. The method of claim 1 , wherein the voltage is an alternating current voltage of between about 10 Hertz and about 2000 Hertz and/or between about 10 volts and about 2000 volts.

4. The method of claim 3 , wherein the voltage is an alternating current voltage of between about 200 Hertz and about 600 Hertz.

5. The method of claim 3 , wherein the voltage is an alternating current voltage of between about 100 volts and about 400 volts.

6. The method of claim 3 , further comprising adjusting the alternating current voltage with one or more transformers.

7. The method of claim 1 , wherein the vehicle component is selected from the group consisting of a nose, a fuel tank, a tail cone, a panel, a coated lap joint between two or more panels, a wing-to-fuselage assembly, a structural aircraft composite, a fuselage body-joint, a wing rib-to-skin joint, and/or other internal component.

8. The method of claim 7 , wherein the first polymer is selected from a polyaniline, a poly(ethylenedioxythiophene), a poly(styrenesulfonate), or mixtures thereof, and the second polymer is selected from a polyurethane, a polyvinyl butyral, a polyacrylate, an epoxy, a glycidyl-Si-Zr-containing solgel, a polyester, a phenoxy resin, a polysulfide, or mixtures thereof.

9. The method of claim 1 , wherein the second polymer comprises a polyurethane, a polyvinyl butyral, a polyacrylate, an epoxy, a glycidyl-Si-Zr-containing solgel, a polyester, a phenoxy resin, a polysulfide, or mixtures thereof.

10. The method of claim 9 , wherein the second polymer is a polyurethane or a polyvinyl butyral.

11. The method of claim 10 , wherein the composition comprises a naphthylsulfonic acid that is dinonylnaphthylsulfonic acid.

12. The method of claim 1 , wherein the first polymer is a mixture of a poly(ethylenedioxythiophene) and a poly(styrenesulfonate), wherein the mixture is between about 1 wt % and about 50 wt % of the composition.

13. The method of claim 12 , wherein the second polymer is an epoxy.

14. The method of claim 1 , wherein the composition has a visible light transmittance of greater than about 50%.

15. The method of claim 1 , wherein the composition comprises a fiber material comprising graphite, fiberglass, nylon, polyethylene, or mixtures thereof.

16. The method of claim 1 , wherein the composition is a layer having between about 0.1 μm and about 10 μm thickness.

17. A method of heating a vehicle component, comprising:
applying a voltage to a composition disposed on the vehicle component, the composition comprising:
a first polymer;
a second polymer; and
at least one of a naphthyl sulfonic acid, an anthracenyl sulfonic acid, and a pyrenyl sulfonic acid.

18. The method of claim 17 , wherein applying the voltage to the composition at least partially melts solid water disposed on a surface of the vehicle component.

19. The method of claim 17 , wherein the voltage is an alternating current voltage of between about 10 Hertz and about 2000 Hertz and/or between about 10 volts and about 2000 volts.

20. The method of claim 19 , wherein the voltage is an alternating current voltage of between about 200 Hertz and about 600 Hertz.

21. The method of claim 19 , wherein the voltage is an alternating current voltage of between about 100 volts and about 400 volts.

22. The method of claim 19 , further comprising adjusting the alternating current voltage with one or more transformers.

23. The method of claim 17 , wherein the vehicle component is selected from the group consisting of a nose, a fuel tank, a tail cone, a panel, a coated lap joint between two or more panels, a wing-to-fuselage assembly, a structural aircraft composite, a fuselage body-joint, a wing rib-to-skin joint, and/or other internal component.

24. The method of claim 17 , wherein the first polymer is selected from a polyaniline, a poly(ethylenedioxythiophene), a poly(styrenesulfonate), or mixtures thereof.

25. The method of claim 24 , wherein the first polymer is a poly(ethylenedioxythiophene).

26. The method of claim 24 , wherein the first polymer is a poly(styrenesulfonate).

27. The method of claim 24 , wherein the composition is a layer having a thickness of between about 0.1 μm and about 10 μm.

28. The method of claim 24 , wherein the second polymer is selected from a polyurethane, a polyvinyl butyral, a polyacrylate, an epoxy, a glycidyl-Si-Zr-containing solgel, a polyester, a phenoxy resin, a polysulfide, or mixtures thereof.

29. The method of claim 28 , wherein the composition is a layer having a thickness of between about 0.1 μm and about 10 μm.

30. The method of claim 28 , wherein the second polymer is a polyurethane or a polyvinyl butyral.

31. The method of claim 28 , wherein the second polymer is an epoxy.

32. The method of claim 17 , wherein the second polymer is selected from a polyurethane, a polyvinyl butyral, a polyacrylate, an epoxy, a glycidyl-Si-Zr-containing solgel, a polyester, a phenoxy resin, a polysulfide, or mixtures thereof.

33. The method of claim 32 , wherein the composition comprises a naphthylsulfonic acid that is dinonylnaphthylsulfonic acid.

34. The method of claim 17 , wherein the first polymer is a mixture of a poly(ethylenedioxythiophene) and a poly(styrenesulfonate), wherein the mixture is between about 1 wt % and about 50 wt % of the composition.

35. The method of claim 17 , wherein the composition has a visible light transmittance of greater than about 50%.

36. The method of claim 17 , wherein the composition comprises a fiber material comprising graphite, fiberglass, nylon, polyethylene, or mixtures thereof.

37. The method of claim 17 , wherein the composition comprises a naphthylsulfonic acid that is dinonylnaphthylsulfonic acid.

Assignees

• Boeing Co

Inventors

• Callahan Rebecca A
• Kinlen Patrick J
• Bruton Eric A

Classifications

• C08L79/02

  Polyamines · CPC title

• C08L39/02

  Homopolymers or copolymers of vinylamine · CPC title

• C08K5/42 Primary

  Sulfonic acids; Derivatives thereof · CPC title

• C09D153/00

  Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers · CPC title

• C08L35/08

  Copolymers with vinyl ethers · CPC title