	US 12,441,865 B2
	Carbon nano materials in crosslinked polyurethane and polyurea applications with optimized properties
Santosh K. Yadav, Geneva, OH (US); and Paul A. Rettinger, Ashtabula, OH (US)
Assigned to VIBRANTZ TECHNOLOGIES INC., Houston, TX (US)
Filed by Vibrantz Technologies Inc., Houston, TX (US)
Filed on Feb. 29, 2024, as Appl. No. 18/591,761.
Application 18/591,761 is a continuation of application No. 17/937,589, filed on Oct. 3, 2022, granted, now 12,234,342.
Claims priority of provisional application 63/251,149, filed on Oct. 1, 2021.
Prior Publication US 2024/0247125 A1, Jul. 25, 2024
Int. Cl. C08K 3/04 (2006.01); C08J 3/22 (2006.01); H01B 1/24 (2006.01); H05K 9/00 (2006.01)

CPC C08K 3/041 (2017.05) [C08J 3/226 (2013.01); H01B 1/24 (2013.01); H05K 9/0079 (2013.01); C08J 2375/02 (2013.01); C08J 2375/04 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01)]

9 Claims

1. A polymeric composite, coating, or molded part comprising:

providing a carbon nanotube polyol blend and polyisocyanate, the carbon nanotube polyol blend formed from a carbon nanotube (CNT) masterbatch dispersion of carbon nanotubes and a polyol resin,

wherein the carbon nanotube (CNT) masterbatch dispersion is formed by dispersing between 0.1% and 15% (weight/weight) of CNT and a plasticizer under high shear mixing techniques to form a CNT masterbatch dispersion, and the carbon nanotube polyol blend is formed by mixing the CNT masterbatch dispersion and a polyol resin,

mixing the carbon nanotube polyol blend and polyisocyanate,

curing the polymer mixture to form a composite, coating or molded part,

wherein the resulting polymeric material has electrical resistivity of 10⁴Ω*cm⁻¹or more.