US 12,453,014 B2
Electronic circuit having graphene oxide paper substrate and method of recovering parts of an electronic circuit
Thomas Szkopek, Outremont (CA); Anthony Ubah, Windsor (CA); and Marta Cerruti, Montreal (CA)
Assigned to THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING / MCGILL UNIVERSITY, Montreal (CA)
Appl. No. 17/794,026
Filed by THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY, Montréal (CA)
PCT Filed Jan. 22, 2021, PCT No. PCT/CA2021/050066
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/146810, PCT Pub. Date Jul. 29, 2021.
Claims priority of provisional application 62/964,903, filed on Jan. 23, 2020.
Prior Publication US 2023/0049337 A1, Feb. 16, 2023
Int. Cl. D21H 13/46 (2006.01); H05K 1/03 (2006.01); H05K 3/22 (2006.01)
CPC H05K 3/22 (2013.01) [D21H 13/46 (2013.01); H05K 1/0386 (2013.01); H05K 2203/0776 (2013.01); H05K 2203/0786 (2013.01); H05K 2203/178 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of recovering parts of an electronic circuit having a self-supporting substrate having graphene oxide (GO) paper and at least a conductive trace on said self-supporting substrate, the method comprising: immersing said electronic circuit into an environment-friendly solvent, said GO paper thereby dissociating from said conductive trace and forming a suspension within an upper layer of said environment-friendly solvent; and recovering at least one of said conductive trace and said GO paper from said environment-friendly solvent.