US 12,434,200 B2
Method for manufacturing ultra-thin polymer separation membrane by using low-temperature coating
Ho Bum Park, Seoul (KR); Tae Hoon Lee, Daejeon (KR); and Si Hyun Do, Seoul (KR)
Assigned to IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
Appl. No. 18/042,671
Filed by IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
PCT Filed Jun. 28, 2021, PCT No. PCT/KR2021/008119
§ 371(c)(1), (2) Date Feb. 23, 2023,
PCT Pub. No. WO2022/050542, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 10-2020-0113991 (KR), filed on Sep. 7, 2020.
Prior Publication US 2023/0330602 A1, Oct. 19, 2023
Int. Cl. B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/56 (2006.01); C02F 1/44 (2023.01)
CPC B01D 67/0002 (2013.01) [B01D 53/228 (2013.01); B01D 69/106 (2022.08); B01D 69/107 (2022.08); B01D 69/12 (2013.01); B01D 71/56 (2013.01); C02F 1/44 (2013.01); B01D 2323/082 (2022.08)] 15 Claims
OG exemplary drawing
 
1. An ultra-thin polymer separation membrane comprising:
a porous polymer support layer;
a gutter layer formed on the porous polymer support layer; and
a semi-crystalline polymer selection layer formed on the gutter layer,
wherein the semi-crystalline polymer selection layer is coated with a nanometer-level thickness in a state in which a temperature of a semi-crystalline polymer solution is 0° C. to −50° C.