The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
May. 02, 2023
Hrl Laboratories, Llc, Malibu, CA (US);
Adam Gross, Santa Monica, CA (US);
Ashley Dustin, Santa Monica, CA (US);
Adam Sorensen, Moorpark, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
Some variations provide an anisotropic thermally conductive polymer composition comprising a plurality of polarizable, thermotropic main-chain liquid-crystal polymer molecules with crystalline domains. The liquid-crystal polymer molecules are in a nematic phase or a smectic phase, and at least 80% of the crystalline domains are aligned along a crystal axis. A method of making an anisotropic thermally conductive polymer composition comprises: synthesizing or obtaining a polymer containing polarizable domains; heating the polymer to form a polymer melt; cooling the polymer melt to form a thermotropic liquid-crystal polymer; exposing the thermotropic liquid-crystal polymer to an electrical field, thereby aligning the polarizable domains along a crystal axis; and recovering the thermotropic liquid-crystal polymer as an anisotropic thermally conductive polymer composition. The polymer composition may be formed into an object characterized by thermal conductivity along the minimum dimension that is at least three times greater than thermal conductivity along the maximum dimension.