US 12,077,660 B2
Thermal debinding techniques for additive manufacturing and related systems and methods
John Reidy, Somerville, MA (US); Christopher Craven, Bedford, MA (US); Nihan Tuncer, Cambridge, MA (US); Animesh Bose, Leesburg, VA (US); Alexander C. Barbati, Melrose, MA (US); Ricardo Fulop, Lexington, MA (US); Brian D. Kernan, Andover, MA (US); and Karl-Heinz Schofalvi, Hudson, OH (US)
Assigned to Desktop Metal, Inc., Burlington, MA (US)
Filed by Desktop Metal, Inc., Burlington, MA (US)
Filed on Nov. 13, 2020, as Appl. No. 17/097,648.
Claims priority of provisional application 63/000,816, filed on Mar. 27, 2020.
Claims priority of provisional application 62/979,636, filed on Feb. 21, 2020.
Claims priority of provisional application 62/936,172, filed on Nov. 15, 2019.
Prior Publication US 2021/0147665 A1, May 20, 2021
Int. Cl. B22F 10/64 (2021.01); B22F 10/18 (2021.01); B28B 1/00 (2006.01); B29C 64/165 (2017.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); C08L 23/12 (2006.01); B29K 505/00 (2006.01); B29K 509/02 (2006.01)
CPC C08L 23/12 (2013.01) [B22F 10/18 (2021.01); B22F 10/64 (2021.01); B28B 1/001 (2013.01); B29C 64/165 (2017.08); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B29K 2505/00 (2013.01); B29K 2509/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A build material for additive fabrication, the build material comprising:
a rod or filament comprising at least one metal powder blended with a binder, the binder comprising:
a primary binder component having a melting point above 40° C. and below 140° C., and having a vapor pressure above 0.05 Torr at all temperatures between 50° ° C. and 160° C.; and
a secondary binder component including solid particles dispersed within the build material, wherein the solid particles of the secondary binder component have a higher melting point than the primary binder component.