US 11,945,151 B2
Additively manufacturing bio-based conductive shape memory polymer macostructure parts with highly ordered microstructures
Jennifer Nicole Rodriguez, Fremont, CA (US); Eric B. Duoss, Dublin, CA (US); James Lewicki, Oakland, CA (US); Christopher Spadaccini, Oakland, CA (US); Thomas S. Wilson, Oakland, CA (US); and Cheng Zhu, Livermore, CA (US)
Assigned to Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed by LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, Livermore, CA (US)
Filed on Aug. 16, 2022, as Appl. No. 17/820,144.
Application 17/820,144 is a division of application No. 15/762,494, filed on Mar. 22, 2018, abandoned.
Prior Publication US 2022/0402194 A1, Dec. 22, 2022
Int. Cl. B29C 64/00 (2017.01); B29C 64/106 (2017.01); B29C 64/165 (2017.01); B29C 64/209 (2017.01); B29C 64/321 (2017.01); B29C 64/393 (2017.01); B33Y 70/10 (2020.01); C08K 3/04 (2006.01); C08K 7/04 (2006.01); C08L 63/00 (2006.01); C08L 91/00 (2006.01); B29K 63/00 (2006.01); B29K 105/12 (2006.01); B29K 507/04 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 80/00 (2015.01)
CPC B29C 64/106 (2017.08) [B29C 64/165 (2017.08); B29C 64/209 (2017.08); B29C 64/321 (2017.08); B29C 64/393 (2017.08); B33Y 70/10 (2020.01); C08K 3/046 (2017.05); C08K 7/04 (2013.01); C08L 63/00 (2013.01); C08L 91/00 (2013.01); B29K 2063/00 (2013.01); B29K 2105/124 (2013.01); B29K 2507/04 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 80/00 (2014.12); C08K 2201/011 (2013.01)] 1 Claim
OG exemplary drawing
 
1. An additive manufacturing method for producing a part or a product, comprising:
providing an additive manufacturing substrate;
positioning an additive manufacturing print head in operative position relative to said additive manufacturing substrate;
providing bio-based shape memory polymer additive manufacturing material in said additive manufacturing print head; and
using an additive manufacturing control system to provide movement of said additive manufacturing print head relative to said additive manufacturing substrate and to extrude said bio-based shape memory polymer additive manufacturing material from said additive manufacturing print head onto said additive manufacturing substrate to form the part or product
wherein said bio-based shape memory polymer additive manufacturing material includes components of shape memory polymer material and bio-based material and
wherein said step of providing bio-based shape memory polymer additive manufacturing material in said additive manufacturing print head comprises the steps of
adding carbon nano fibers fillers to epoxidized soy bean oil and Bisphenol A diglycidyl ether thermoset base resin to from an intermediate material,
adding acetone to said intermediate material,
sonicating said intermediate material,
mixing said intermediate material,
drying said intermediate material, and
degassing said intermediate material.