	US 11,920,048 B2
	Non-flammable coating loaded with microcapsules encapsulating a flammable phase change material and layered structures made therewith
Timothy J. Riazzi, Dayton, OH (US)
Assigned to Microtek Laboratories INC., Dayton, OH (US)
Filed by Microtek Laboratories INC., Dayton, OH (US)
Filed on Jun. 22, 2021, as Appl. No. 17/354,157.
Claims priority of provisional application 63/042,690, filed on Jun. 23, 2020.
Prior Publication US 2021/0395554 A1, Dec. 23, 2021
Int. Cl. C09D 125/10 (2006.01); C08K 5/3492 (2006.01); C09D 5/18 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 125/14 (2006.01); C08K 3/04 (2006.01); C08K 5/11 (2006.01); C08K 9/10 (2006.01)

CPC C09D 125/10 (2013.01) [C08K 5/3492 (2013.01); C09D 5/18 (2013.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 7/70 (2018.01); C09D 125/14 (2013.01); C08K 3/042 (2017.05); C08K 5/11 (2013.01); C08K 9/10 (2013.01); C08K 2201/005 (2013.01)]

8 Claims

1. A non-flammable structure comprising:

a substrate;

a layer applied to the substrate, the layer in dried form has a thickness of about 1 mm to about 5 mm and comprises:

a binder having mixed therein about 50% to about 90% by weight of microencapsulated phase change material and about 0.5% to about 10% by weight of an inorganic flame retardant,

wherein the inorganic flame retardant has a volume that increases upon exposure to heat or fire,

the binder is selected from the group consisting of a polyurethane, a styrene acrylic copolymer, a styrene butadiene copolymer, an acrylic, and combinations thereof, and the layer in dried form provides 0.1 kg/m²to 2 kg/m²of microcapsules.