US 12,225,924 B2
Self-folding materials and methods, systems and devices for making the same
Lining Yao, Pittsburgh, PA (US); Ye Tao, Pittsburgh, PA (US); Yi-Chin Lee, Pittsburgh, PA (US); Haolin Liu, Pittsburgh, PA (US); Jianxun Cui, Pittsburgh, PA (US); Catherine Mondoa, Pittsburgh, PA (US); Jasio Santillan, Pittsburgh, PA (US); Wen Wang, Pittsburgh, PA (US); and Teng Zhang, Syracuse, NY (US)
Assigned to CARNEGIE MELLON UNIVERSITY, Pittsburgh, PA (US)
Appl. No. 17/620,811
Filed by CARNEGIE MELLON UNIVERSITY, Pittsburgh, PA (US)
PCT Filed Jun. 22, 2020, PCT No. PCT/US2020/039023
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2020/257804, PCT Pub. Date Dec. 24, 2020.
Claims priority of provisional application 62/869,753, filed on Jul. 2, 2019.
Claims priority of provisional application 62/864,547, filed on Jun. 21, 2019.
Prior Publication US 2022/0338514 A1, Oct. 27, 2022
Int. Cl. B32B 25/20 (2006.01); A21D 13/11 (2017.01); A21D 13/40 (2017.01); A21D 13/42 (2017.01); A21D 13/80 (2017.01); A23L 7/109 (2016.01); A23P 20/20 (2016.01); A23P 30/10 (2016.01); B29C 59/00 (2006.01); B32B 3/30 (2006.01); B32B 7/02 (2019.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 25/08 (2006.01); B32B 27/28 (2006.01); G06F 30/17 (2020.01); B29K 83/00 (2006.01)
CPC A23L 7/11 (2016.08) [A21D 13/11 (2017.01); A21D 13/40 (2017.01); A21D 13/42 (2017.01); A21D 13/80 (2017.01); A23L 7/109 (2016.08); A23P 20/20 (2016.08); A23P 30/10 (2016.08); B29C 59/007 (2013.01); B32B 3/30 (2013.01); B32B 7/02 (2013.01); B32B 9/005 (2013.01); B32B 9/04 (2013.01); B32B 9/043 (2013.01); B32B 9/045 (2013.01); B32B 25/08 (2013.01); B32B 25/20 (2013.01); B32B 27/283 (2013.01); G06F 30/17 (2020.01); A23V 2002/00 (2013.01); B29K 2083/00 (2013.01); B32B 2307/732 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for creating self-folding material consisting of:
grooving at least one groove onto a single layer homogeneous material, having a top surface and a bottom surface, at an angle perpendicular to a predetermined bending angle and at a groove spacing and groove depth chosen to result in a predetermined final shape or the predetermined bending angle; and
exposing the single layer homogeneous material with the at least one groove to water to cause the single layer homogeneous material to change shape.