US 12,312,492 B2
Method for producing a polymer film
Carita Kvarnström, Turku (FI); Pia Damlin, Littoinen (FI); Mikko Salomäki, Masku (FI); Mauri Nauma, Masku (FI); and Rahul Balu Yewale, Turunyliopisto (FI)
Assigned to TURUN YLIOPISTO, Turun Yliopisto (FI)
Appl. No. 17/053,029
Filed by Turun Yliopisto, Turun yliopisto (FI)
PCT Filed May 2, 2019, PCT No. PCT/FI2019/000006
§ 371(c)(1), (2) Date Nov. 4, 2020,
PCT Pub. No. WO2019/211510, PCT Pub. Date Nov. 7, 2019.
Claims priority of application No. PCT/FI2018/050330 (WO), filed on May 4, 2018.
Prior Publication US 2021/0230450 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 181/02 (2006.01); B05D 1/00 (2006.01); B05D 3/10 (2006.01); C08G 61/12 (2006.01); C08J 5/18 (2006.01); C08J 7/04 (2020.01); C08J 7/16 (2006.01); C09D 5/24 (2006.01); C09D 7/63 (2018.01); H01B 1/12 (2006.01)
CPC C09D 181/02 (2013.01) [B05D 1/005 (2013.01); B05D 1/60 (2013.01); B05D 3/101 (2013.01); B05D 3/104 (2013.01); B05D 3/108 (2013.01); C08G 61/126 (2013.01); C08J 5/18 (2013.01); C08J 7/0427 (2020.01); C08J 7/16 (2013.01); C09D 5/24 (2013.01); C09D 7/63 (2018.01); H01B 1/127 (2013.01); B05D 2201/02 (2013.01); B05D 2203/35 (2013.01); B05D 2518/00 (2013.01); C08G 2261/3247 (2013.01); C08G 2261/43 (2013.01); C08G 2261/91 (2013.01); C08G 2261/94 (2013.01); C08G 2261/95 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for producing a poly (3,4-ethylenedioxythiophene) (PEDOT) film comprising a substrate and at least one PEDOT layer on at least one surface of the substrate
wherein the method comprises the steps of:
a) applying a solution comprising an oxidant and a base inhibitor on at least one surface of the substrate so as to form an oxidant coating on at least one surface of the substrate,
b) subjecting the oxidant-coated substrate formed in step a) to a polymerization step by exposing the surface(s) of the oxidant-coated substrate to 3,4-ethylenedioxythiophene (EDOT) monomer vapour at a polymerization temperature to form a PEDOT layer on the surface(s) of the oxidant-coated substrate, and
wherein, during the polymerization step, the temperature of the oxidant-coated substrate is kept at a controlled substrate temperature and wherein the controlled substrate temperature is 2-40° C. lower than the polymerization temperature and wherein the polymerization temperature is 55-95° C. and the controlled substrate temperature is 40-70° C.