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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 11643754 B1

PDFFull Text
Date of Patent:
May. 09, 2023

Filed:

Jan. 23, 2020

Core-shell morphology of composite filaments for use in extrusion-based additive manufacturing systems

Applicant:

Stratasys, Inc., Eden Prairie, MN (US);

Inventors:

Christopher Scott Graley, Glencoe, MN (US);

Christine Lawrence Sumerel, Brecksville, OH (US);

James E. Orrock, Eden Prairie, MN (US);

Assignee:

Stratasys, Inc., Eden Prairie, MN (US);

Attorneys:

Peter J. Ims

Westman, Champlin & Koehler, P.A.

Primary Examiner:

Ian A Rummel

Int. Cl.
CPC ...
D01F 8/10 (2006.01); B29C 64/118 (2017.01); D01F 1/10 (2006.01); D01F 8/08 (2006.01); B33Y 80/00 (2015.01); B33Y 70/00 (2020.01); D01F 8/04 (2006.01); B33Y 70/10 (2020.01); B29L 9/00 (2006.01); B29K 33/00 (2006.01); B29K 505/12 (2006.01); B29C 48/07 (2019.01); B29C 48/16 (2019.01); B29C 48/00 (2019.01); B29C 48/154 (2019.01); B29K 305/00 (2006.01); B29K 309/02 (2006.01); B29K 307/04 (2006.01);
U.S. Cl.
CPC ...
D01F 8/10 (2013.01); B29C 64/118 (2017.08); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); D01F 1/10 (2013.01); D01F 8/04 (2013.01); D01F 8/08 (2013.01); B29C 48/0021 (2019.02); B29C 48/07 (2019.02); B29C 48/154 (2019.02); B29C 48/16 (2019.02); B29K 2033/08 (2013.01); B29K 2305/00 (2013.01); B29K 2307/04 (2013.01); B29K 2309/02 (2013.01); B29K 2505/12 (2013.01); B29L 2009/00 (2013.01); Y10T 428/2913 (2015.01); Y10T 428/2927 (2015.01); Y10T 428/2929 (2015.01); Y10T 428/2938 (2015.01); Y10T 428/2967 (2015.01);
Abstract

A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a matrix of a first base polymer and particles dispersed within the matrix, and a shell portion comprising a same or a different base polymer. The consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional part, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament and retain the particles within the roads of the printed part and do not penetrate the outer surface of the shell portion.

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