US 12,226,215 B2
Conductive polymeric composition and method for preparing the conductive polymeric composition
Giuseppe Arnaldo Usai, Rome (IT); Erika Scavetta, Bologna (IT); Isacco Gualandi, Bologna (IT); Beatrice Fraboni, Bologna (IT); Marta Tessarolo, Bologna (IT); Annalisa Bonfiglio, Cagliari (IT); Danilo Pani, Cagliari (IT); and Eleonora Sulas, Cagliari (IT)
Assigned to Giuseppe USAI, Rome (IT); ALMA MATER STUDIORUM—UNIVERSITA' DI BOLOGNA, Bologna (IT); and UNIVERSITA' DEGLI STUDI DI CAGLIARI, Cagliari (IT)
Appl. No. 17/607,313
Filed by ALMA MATER STUDIORUM—UNIVERSITA' DI BOLOGNA, Bologna (IT); UNIVERSITA' DEGLI STUDI DI CAGLIARI, Cagliari (IT); and Giuseppe Arnaldo Usai, Rome (IT)
PCT Filed Apr. 29, 2020, PCT No. PCT/IB2020/054018
§ 371(c)(1), (2) Date Oct. 28, 2021,
PCT Pub. No. WO2020/222130, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 102019000006437 (IT), filed on Apr. 29, 2019.
Prior Publication US 2022/0202333 A1, Jun. 30, 2022
Int. Cl. A61B 5/268 (2021.01); A61B 5/256 (2021.01); C08G 61/12 (2006.01); C08K 5/3445 (2006.01); C08K 5/41 (2006.01); C09D 5/24 (2006.01); C09D 7/63 (2018.01); C09D 11/102 (2014.01); C09D 11/52 (2014.01); C09D 165/00 (2006.01)
CPC A61B 5/268 (2021.01) [A61B 5/256 (2021.01); C08G 61/126 (2013.01); C08K 5/3445 (2013.01); C08K 5/41 (2013.01); C09D 5/24 (2013.01); C09D 7/63 (2018.01); C09D 11/102 (2013.01); C09D 11/52 (2013.01); C09D 165/00 (2013.01); C08G 2261/12 (2013.01); C08G 2261/148 (2013.01); C08G 2261/3326 (2013.01); C08G 2261/3342 (2013.01); C08G 2261/514 (2013.01); C08G 2261/792 (2013.01); C08G 2261/94 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A viscous conductive polymeric composition comprising PEDOT and one or more ionic liquids made by a process comprising:
(a) generating an aqueous suspension mixture comprising in % by weight:
a PEDOT conductive polymer in an amount between about 0.2 and 10%,
one or more ionic liquids in an amount between about 0.05-2.0%,
a secondary dopant in an amount between about 0-50%,
wherein the ratio (ionic liquid)/(PEDOT conductive polymer) is between about 0.5 and 15,
by mixing and heating the PEDOT conductive polymer, the one or more ionic liquids, and the secondary dopant, thereby generating an aqueous suspension mixture, and
(b) a first evaporating step comprising evaporating the water from the aqueous suspension mixture to generate a viscous aqueous suspension mixture comprising water in an amount between about 30% to about 99% by weight, wherein after the evaporating the aqueous suspension mixture has a viscosity of the mixture between about 100 and 10000 cP,
wherein each of the one or more ionic fluids comprises a compound having a general formula (I)

OG Complex Work Unit Chemistry
wherein
R1 and R2 independently of each other are branched or cyclic linear alkyl groups, with chain C1-C15,
X is an anion selected from alkylsulphates, tosylate, Ccarboxylates-i-Cs, such as formate and acetate, halides such as fluorides, chlorides, bromides and iodides, borates and phosphates, such as tetrafluoro borate and hexafluorophosphate, sulphonates.