US 12,215,202 B2
Additive manufacturing support material
Andrew Hudson, Pittsburgh, PA (US); Thomas Hinton, Pittsburgh, PA (US); Adam Feinberg, Pittsburgh, PA (US); and Andrew Lee, Pittsburgh, PA (US)
Assigned to Carnegie Mellon University, Pittsburgh, PA (US)
Filed by Carnegie Mellon University, Pittsburgh, PA (US)
Filed on May 12, 2023, as Appl. No. 18/196,884.
Application 18/196,884 is a continuation of application No. 16/603,158, granted, now 11,692,070, previously published as PCT/US2018/026293, filed on Apr. 5, 2018.
Claims priority of provisional application 62/606,578, filed on Sep. 28, 2017.
Claims priority of provisional application 62/601,949, filed on Apr. 5, 2017.
Prior Publication US 2024/0110017 A1, Apr. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/46 (2006.01); B33Y 70/00 (2020.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C08J 3/075 (2006.01); C09D 11/04 (2006.01); B29C 64/40 (2017.01)
CPC C08J 3/075 (2013.01) [B33Y 70/00 (2014.12); C09D 11/04 (2013.01); B29C 64/40 (2017.08); C08J 2389/00 (2013.01); C08J 2389/04 (2013.01)] 13 Claims
 
1. A support material for additive manufacturing comprising:
a solution; and
particles in the solution, the particles being of substantially uniform geometries;
wherein at least a portion of the solution forms a rigid body when experiencing a stress below a threshold stress;
wherein a value of the threshold stress is based on the substantially uniform geometries of the particles; and
wherein at least a portion of the solution forms a viscous fluid when experiencing a stress above the threshold stress.