Conjugated polymer compositions, articles thereof, and methods thereof

Patent metadata

Field	Value
Publication number	US-12448526-B2
Application number	US-202117407877-A
Country	US
Kind code	B2
Filing date	Aug 20, 2021
Priority date	Oct 8, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

The present disclosure provides compositions, articles thereof, and methods of forming compositions. In at least one aspect, a composition includes (1) an epoxy, (2) an amino or amido hardener, (3) a polyaniline, (4) a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a salicylate, a benzoate, a glycolate, a phosphate, a sulfonate, or combination(s) thereof; and (5) a pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof. The polyaniline+dopant comprises 6 wt % or less, by total volume of the composition. The present disclosure provides substrates having a composition disposed thereon. In at least one aspect, a method includes introducing an acid form of a polyaniline to a hydroxide to form a polyaniline hydroxide. The method includes introducing a dopant to the polyaniline hydroxide to form a doped polyaniline.

First claim

What is claimed is:

1. A composition comprising:
an epoxy;
a hardener comprising an amino hardener or an amido hardener;
a polyaniline;
a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a glycolate, or combination(s) thereof, wherein a combination of the polyaniline and the dopant form a first pigment, the first pigment comprising 6 wt % or less of the composition, the composition comprising a pigment volume concentration of the first pigment in an amount of about 1% to about 25%; and
a second pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof,
wherein the composition comprises a volume solids of about 70% or greater, based on the total volume of the composition.

2. The composition of claim 1 , wherein the polyaniline is an emeraldine form of the polyaniline.

3. The composition of claim 1 , wherein the composition has a volatile organic content of 300 g/L or less.

4. The composition of claim 1 , wherein the composition has a volume solids of about 80% or greater, based on total volume of the composition.

5. The composition of claim 1 , wherein the composition comprises the epoxy and hardener in an amount of about 45 wt % to about 85 wt %.

6. The composition of claim 1 , wherein the epoxy of the composition comprises one or more epoxies, the one or more epoxies comprising about 40 wt % to about 55 wt % of the composition.

7. The composition of claim 1 , wherein the hardener is an amino hardener, the amino hardener comprising about 15 wt % to about 21 wt % of the composition.

8. The composition of claim 1 , wherein the hardener is an amido hardener, the amido hardener comprising about 15 wt % to about 21 wt % of the composition.

9. The composition of claim 1 , wherein the epoxy is a bisphenol-A epoxy or bisphenol-F epoxy.

10. The composition of claim 1 , wherein the composition comprises the first pigment in an amount of about 0.1 wt % to 6 wt %.

11. The composition of claim 1 , wherein the composition comprises the first pigment in an amount of about 10% to about 20%, based on Pigment Volume Concentration of the composition.

12. The composition of claim 1 , wherein the first pigment comprises a molar ratio of dopant to aniline units of the polyaniline of about 0.3:1 to about 1:1.

13. The composition of claim 1 , wherein the dopant is a triazolyl selected from benzotriazole, triazole carboxylic acid, or benzotriazole sulphonic acid.

14. The composition of claim 1 , wherein the dopant is a thiazolyl selected from one or more of benzothiazole, thiazole carboxylic acid, or mercaptobenzothiazole.

15. The composition of claim 1 , wherein the dopant is a quinolinyl selected from 8-hydroxyquinoline or mercaptoquinoline.

16. The composition of claim 1 , wherein the dopant further comprises a salicylate selected from salicylic acid, hydroxybenzoic acids, or salts thereof.

17. The composition of claim 1 , wherein the dopant is a glycolate selected from glycolate or thioglycolate.

18. The composition of claim 1 , wherein the dopant is further comprises a phosphate selected from phosphoric acid or salt(s) thereof.

19. The composition of claim 1 , wherein the wherein the composition has a volatile organic content of 200 g/L to 250 g/L.

Assignees

• Boeing Co

Inventors

• Ijeri Vijaykumar
• Gaydos Stephen P
• Kinlen Patrick J
• Sadagopan Sathiyanarayanan
• Chenan Arunchandran
• Ramachandran Jeyaram

Classifications

• C09D7/61

  inorganic · CPC title

• C09D7/63

  organic · CPC title

• C09D7/43

  Thickening agents · CPC title

• C09D163/00

  Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title

• H01B1/128

  comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes · CPC title