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:
Dec. 30, 2025
Filed:
Mar. 31, 2021
Greene, Tweed Technologies, Inc., Wilmington, DE (US);
University of Massachusetts, Boston, MA (US);
Mookkan Periyasamy, Wilmington, DE (US);
Ronald R. Campbell, Harleysville, PA (US);
Elizabeth Sassano, West Chester, PA (US);
Joey Mead, Boston, MA (US);
David Kazmer, Boston, MA (US);
Shibshankar Banerjee, Boston, MA (US);
Stephen Burbine, Boston, MA (US);
Erin E. Keaney, Boston, MA (US);
Leeda Phaen, Boston, MA (US);
Greene, Tweed Technologies, Inc., Wilmington, DE (US);
University of Massachusetts, Boston, MA (US);
Abstract
An apparatus suitable for extruding curable polymers for forming elastomer articles using additive manufacturing, and curable fluorine-containing polymer compositions suitable for use in such an apparatus are disclosed along with an additive manufacturing method for forming a fluorine-containing elastomer article including providing a filament formed of a curable fluoropolymer composition; providing an additive manufacturing printer having a drive mechanism and a printer nozzle; feeding the filament into an additive manufacturing printer through the drive mechanism and through a longitudinal passage defined by an interior wall of a support tube, wherein the support tube extends from a first end to a second end, and wherein the second end of the support tube is positioned near an inlet to a printer nozzle; applying heat to the filament; and printing successive layers of the heated filament exiting an outlet of the nozzle onto a substrate using the additive manufacturing printer to form the fluorine-containing elastomer article.