US 12,275,847 B2
Thiol-ene silicone additive fabrication
Alexander Philip Haring, Woburn, MA (US)
Assigned to Formlabs Inc., Somerville, MA (US)
Filed by Formlabs Inc., Somerville, MA (US)
Filed on Dec. 22, 2023, as Appl. No. 18/394,083.
Application 18/394,083 is a division of application No. 18/060,249, filed on Nov. 30, 2022, granted, now 11,891,513.
Claims priority of provisional application 63/267,645, filed on Feb. 7, 2022.
Prior Publication US 2024/0158635 A1, May 16, 2024
Int. Cl. C08L 83/08 (2006.01); B29C 64/124 (2017.01); B29K 83/00 (2006.01); B29K 105/16 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01)
CPC C08L 83/08 (2013.01) [B29C 64/124 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B29K 2083/00 (2013.01); B29K 2105/16 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A three-dimensional object made using a method comprising:
providing a photocurable silicone composition in a vessel of an additive fabrication device;
irradiating a layer of the photocurable silicone composition with an energy source to form an at least partially cured layer of the photocurable silicone composition on a build platform of the additive fabrication device or on a previously cured layer of the photocurable silicone composition;
wherein the photocurable silicone composition comprises:
a mercapto-derivatized polysiloxane having two or more functional groups;
an alkenyl-derivatized polysiloxane; and
a photo-initiator,
wherein the three-dimensional object has a Shore A hardness of greater than 10, greater than 20, greater than 40 or greater than 60.