	US 11,674,084 B2
	Anisotropic thermally conductive polymers and methods of making and using the same
Adam Gross, Santa Monica, CA (US); Ashley Dustin, Los Angeles, 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 Dec. 5, 2021, as Appl. No. 17/542,488.
Claims priority of provisional application 63/148,135, filed on Feb. 11, 2021.
Prior Publication US 2022/0251449 A1, Aug. 11, 2022
Int. Cl. C09K 19/38 (2006.01); C09K 19/04 (2006.01)

CPC C09K 19/3809 (2013.01) [C09K 2019/0448 (2013.01)]

21 Claims

1. An anisotropic thermally conductive polymer composition comprising a plurality of thermotropic main-chain liquid-crystal polymer molecules,

wherein said thermotropic main-chain liquid-crystal polymer molecules each contain crystalline domains;

wherein said thermotropic main-chain liquid-crystal polymer molecules are polarizable;

wherein said thermotropic main-chain liquid-crystal polymer molecules are characterized by a weight-average molecular weight from about 10²g/mol to about 10⁷g/mol;

wherein said thermotropic main-chain liquid-crystal polymer molecules are in a nematic phase, a smectic phase, or a combination thereof; and

wherein at least 80% of said crystalline domains are aligned along a crystal axis with a full width at half maximum degree of alignment of 10 degrees or less.