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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.:

US 11712822 B1

PDFFull Text
Date of Patent:
Aug. 01, 2023

Filed:

Jul. 19, 2019

Microwave-induced localized heating of cnt filled polymer composites for enhanced inter-bead diffusive bonding of fused filament fabricated part

Applicant:

Texas Tech University System, Lubbock, TX (US);

Inventors:

Charles B. Sweeney, Lubbock, TX (US);

Micah J. Green, College Station, TX (US);

Mohammad Saed, Lubbock, TX (US);

Assignee:

Texas Tech University System, Lubbock, TX (US);

Attorneys:

Dickinson Wright PLLC

Ross Spencer Garsson

Primary Examiner:

Matthew D Matzek

Int. Cl.
CPC ...
B33Y 10/00 (2015.01); B29C 35/08 (2006.01); B29C 64/129 (2017.01); B29C 64/118 (2017.01); B29C 64/124 (2017.01); B29C 64/106 (2017.01); B29C 64/264 (2017.01); D01F 11/04 (2006.01); B33Y 70/10 (2020.01); B33Y 30/00 (2015.01); B33Y 80/00 (2015.01); B29B 15/14 (2006.01); B29C 70/38 (2006.01); B82Y 30/00 (2011.01); D01F 1/09 (2006.01); B29K 105/16 (2006.01);
U.S. Cl.
CPC ...
B29C 35/0805 (2013.01); B29B 15/14 (2013.01); B29C 64/106 (2017.08); B29C 64/118 (2017.08); B29C 64/124 (2017.08); B29C 64/129 (2017.08); B29C 64/264 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); D01F 11/04 (2013.01); B29C 70/38 (2013.01); B29C 2035/0855 (2013.01); B29K 2105/167 (2013.01); B32B 2264/108 (2013.01); B32B 2264/301 (2020.08); B32B 2307/202 (2013.01); B82Y 30/00 (2013.01); D01F 1/09 (2013.01); Y10T 428/29 (2015.01); Y10T 428/2913 (2015.01); Y10T 428/2924 (2015.01);
Abstract

A microwave-induced heating of CNT filled (or coated) polymer composites for enhancing inter-bead diffusive bonding of fused filament fabricated parts. The technique incorporates microwave absorbing nanomaterials (carbon nanotubes (CNTs)) onto the surface or throughout the volume of 3D printer polymer filament to increase the inter-bead bond strength following a post microwave irradiation treatment and/or in-situ focused microwave beam during printing. The overall strength of the final 3D printed part will be dramatically increased and the isotropic mechanical properties of fused filament part will approach or exceed conventionally manufactured counterparts.

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