US 12,077,672 B2
Three dimensional porous siloxanes using leachable porogen particles
Lemuel Perez Perez, Livermore, CA (US); Eric B. Duoss, Dublin, CA (US); Jeremy Lenhardt, Tracy, CA (US); and Thomas S. Wilson, San Leandro, CA (US)
Assigned to Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed by Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed on Oct. 12, 2021, as Appl. No. 17/499,641.
Application 17/499,641 is a division of application No. 16/368,725, filed on Mar. 28, 2019, granted, now 11,180,670.
Prior Publication US 2022/0064463 A1, Mar. 3, 2022
Int. Cl. C08J 9/26 (2006.01); B29C 64/118 (2017.01); C08G 77/20 (2006.01); C08K 3/013 (2018.01); C08K 3/36 (2006.01); C08K 5/21 (2006.01); C08K 7/22 (2006.01); C08K 9/06 (2006.01); C08L 71/02 (2006.01); C09D 11/101 (2014.01); C09D 11/102 (2014.01); C09D 11/16 (2014.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/10 (2020.01)
CPC C09D 11/16 (2013.01) [B29C 64/118 (2017.08); C08G 77/20 (2013.01); C08J 9/26 (2013.01); C08K 3/013 (2018.01); C08K 3/36 (2013.01); C08K 5/21 (2013.01); C08K 7/22 (2013.01); C08K 9/06 (2013.01); C08L 71/02 (2013.01); C09D 11/101 (2013.01); C09D 11/102 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); C08J 2201/042 (2013.01); C08K 2201/003 (2013.01); C08K 2201/006 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A product of additive manufacturing with a silicone-based ink, the product comprising:
at least one continuous filament comprised of a siloxane matrix having a treated silica hydrophobic reinforcing filler therein, wherein the continuous filaments are arranged in a geometric pattern;
a plurality of inter-filament pores, wherein the inter-filament pores are defined by the geometric pattern of the at least one continuous filament; and
a plurality of intra-filament pores, wherein the intra-filament pores have an average diameter in a range of greater than 1 micron to less than 50 microns, wherein the intra-filament pores are present as an open interconnected network of intra-filament pores.