Self-mineralizing multifunctional coating composition

Patent metadata

Field	Value
Publication number	US-12540255-B2
Application number	US-202318156901-A
Country	US
Kind code	B2
Filing date	Jan 19, 2023
Priority date	Jan 19, 2022
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A coating composition includes alkaline mineral particles including an oxide of an alkaline earth metal and an amine-containing polymer. The amine-containing polymer is adsorbed on the alkaline mineral particles. Forming a coating composition includes at least partially coating alkaline mineral particles with an amine-containing polymer and dispersing the alkaline mineral particles in a liquid to yield the coating composition. The alkaline mineral particles include an oxide of an alkaline earth metal.

First claim

What is claimed is:

1 . A coating composition comprising:
alkaline mineral particles comprising an oxide of an alkaline earth metal; and an amine-containing polymer comprising polyethylene terephthalate, wherein the amine-containing polymer is adsorbed on the alkaline mineral particles.

2 . The coating composition of claim 1 , wherein the alkaline mineral particles comprise one or more of MgO, CaO, CaSiO 3 , Ca 2 SiO 4 , and Mg 2 SiO 4 .

3 . The coating composition of claim 2 , wherein the alkaline mineral particles have a diameter in a range of about 1 nm to about 100 nm.

4 . The coating composition of claim 1 , further comprising water, alcohol, or both.

5 . The coating composition of claim 4 , further comprising one or more resin binders.

6 . The coating composition of claim 5 , wherein the one or more resin binders comprises an epoxy resin, an acrylic resin, or both.

7 . The coating composition of claim 5 , wherein the one or more resin binders comprise poly(methyl methacrylate), poly[(vinyl acetate)-co-(methy/ethyl/butyl acrylate)], or both.

8 . The coating composition of claim 1 , further comprising a silicone polymer.

9 . The coating composition of claim 8 , wherein the silicone polymer comprises a functionalized polysilsesquioxane.

10 . The coating composition of claim 9 , wherein the functionalized polysilsesquioxane comprises poly(dimethylsiloxane).

11 . The coating composition of claim 1 , further comprising one or more pigments.

12 . The coating composition of claim 1 , wherein the coating composition reflects solar radiation.

13 . A coating formed from the coating composition of claim 1 .

14 . A method of storing carbon dioxide, the method comprising:
contacting carbon dioxide with the coating composition of claim 1 ; capturing the carbon dioxide with the amine-containing polymer; transporting the carbon dioxide to the oxide of the alkaline earth metal; and forming an alkaline earth metal carbonate species.

15 . A method of forming a coating composition, the method comprising:
at least partially coating alkaline mineral particles with an amine-containing polymer comprising polyethylene terephthalate, wherein the alkaline mineral particles comprise an oxide of an alkaline earth metal; and dispersing the alkaline mineral particles in a liquid to yield the coating composition.

16 . The method of claim 15 , wherein the coating composition further comprises one or both of a resin binder and a silicone polymer.

17 . The method of claim 15 , wherein the coating composition further comprises one or more pigments.

18 . The method of claim 15 , wherein the alkaline mineral particles comprise one or more of MgO, CaO, CaSiO 3 , Ca 2 SiO 4 , and Mg 2 SiO 4 .

Assignees

• Fini Elham
• Hung Albert
• Univ Arizona State

Inventors

• Fini Elham
• Hung Albert

Classifications

• C09D7/67

  Particle size smaller than 100 nm · CPC title

• C09D7/65 Primary

  macromolecular (C09D7/41-C09D7/48 take precedence) · CPC title

• C09D7/61

  inorganic · CPC title

• C09D7/20

  Diluents or solvents · CPC title

• C09D177/12 Primary

  Polyester-amides · CPC title