	US 12,077,704 B2
	Anisotropic thermally conductive polymers and methods of making and using the same
Adam Gross, Santa Monica, CA (US); Ashley Dustin, Santa Monica, CA (US); and Adam Sorensen, Moorpark, CA (US)
Assigned to HRL Laboratories, LLC, Malibu, CA (US)
Filed by HRL Laboratories, LLC, Malibu, CA (US)
Filed on May 2, 2023, as Appl. No. 18/142,090.
Application 18/142,090 is a division of application No. 17/542,488, filed on Dec. 5, 2021, granted, now 11,674,084.
Claims priority of provisional application 63/148,135, filed on Feb. 11, 2021.
Prior Publication US 2023/0332047 A1, Oct. 19, 2023
Int. Cl. G02F 1/1333 (2006.01); C09K 19/02 (2006.01); C09K 19/38 (2006.01); G02F 1/1334 (2006.01); G02F 1/1343 (2006.01); C09K 19/04 (2006.01)

CPC C09K 19/3809 (2013.01) [C09K 19/02 (2013.01); G02F 1/133365 (2013.01); G02F 1/1334 (2013.01); G02F 1/13439 (2013.01); C09K 2019/0448 (2013.01)]

18 Claims

1. A method of making an anisotropic thermally conductive polymer composition, said method comprising:

synthesizing or obtaining a polymer containing polarizable domains;

heating said polymer to form a polymer melt containing said polarizable domains;

cooling said polymer melt to form a thermotropic liquid-crystal polymer containing said polarizable domains;

exposing said thermotropic liquid-crystal polymer and/or said polymer melt to an electrical field between a first anode and a first cathode, thereby aligning at least some of said polarizable domains along a crystal axis; and

recovering said thermotropic liquid-crystal polymer as an anisotropic thermally conductive polymer composition.