US 12,264,263 B2
Composite coatings containing phase change materials
Matthew Aguayo, Chandler, AZ (US); Aashay Arora, Tempe, AZ (US); and Narayanan Neithalath, Chandler, AZ (US)
Assigned to ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY, Scottsdale, AZ (US)
Filed by Matthew Aguayo, Chandler, AZ (US); Aashay Arora, Tempe, AZ (US); and Narayanan Neithalath, Chandler, AZ (US)
Filed on Jul. 9, 2021, as Appl. No. 17/372,031.
Application 17/372,031 is a continuation of application No. PCT/US2020/013141, filed on Jan. 10, 2020.
Claims priority of provisional application 62/791,299, filed on Jan. 11, 2019.
Prior Publication US 2021/0340387 A1, Nov. 4, 2021
Int. Cl. C09D 5/26 (2006.01); C09D 5/02 (2006.01); C09D 7/40 (2018.01); C09D 133/00 (2006.01); C09K 5/06 (2006.01); G01N 25/18 (2006.01)
CPC C09D 5/26 (2013.01) [C09D 5/028 (2013.01); C09D 7/70 (2018.01); C09D 133/00 (2013.01); C09K 5/063 (2013.01); G01N 25/18 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A formulation for phase change material (PCM)-composite coating, the formulation comprising:
an amount of acrylic latex-based paint having a mass fraction range of about 0.25 to about 0.60, wherein the acrylic latex-based paint comprises a binder comprising polymer solids, a filler, a pigment, and a first amount of water;
microencapsulated PCM having a PCM-to-paint mass ratio of between 0.01 to 0.4, wherein the microencapsulated PCM comprises an organic PCM powder contained within spherical polymer microcapsules, and the organic PCM powder has a median particle size of between 10 μm and 100 μm and a phase transition temperature of between about 24 degrees Celsius and about 40 degrees Celsius; and
the formulation further comprises a second amount of water in the acrylic latex-based paint and the microencapsulated PCM so that a mass fraction of a total amount of water including the first amount of water and the second amount of water is between about 0.1 and about 0.75.