US 11,718,712 B2
Composition for interfacial polymerization of polyamide and manufacturing method for water treatment separation membrane using same
Eunkyoung Byun, Daejeon (KR); Youngju Lee, Daejeon (KR); Lakwon Choi, Daejeon (KR); and Chong Kyu Shin, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 16/756,652
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jun. 20, 2019, PCT No. PCT/KR2019/007438
§ 371(c)(1), (2) Date Apr. 16, 2020,
PCT Pub. No. WO2019/245296, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 10-2018-0070933 (KR), filed on Jun. 20, 2018; application No. 10-2018-0070938 (KR), filed on Jun. 20, 2018; and application No. 10-2018-0070940 (KR), filed on Jun. 20, 2018.
Prior Publication US 2020/0332059 A1, Oct. 22, 2020
Int. Cl. C08G 69/44 (2006.01); C08G 69/04 (2006.01); B01D 61/02 (2006.01); B01D 67/00 (2006.01); B01D 69/10 (2006.01); B01D 71/56 (2006.01); C02F 1/44 (2023.01); C09D 177/10 (2006.01); B01D 69/00 (2006.01)
CPC C08G 69/04 (2013.01) [B01D 61/025 (2013.01); B01D 67/0006 (2013.01); B01D 69/10 (2013.01); B01D 71/56 (2013.01); C02F 1/441 (2013.01); C09D 177/10 (2013.01); B01D 2323/36 (2013.01); C02F 2305/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A composition for interfacial polymerizing polyamide comprising:
an amine compound; and
one or more types of compounds selected from among a purine-based compound and a pyrimidine-based compound,
wherein the purine-based compound is one or more selected from among purine, adenine, guanine, hypoxanthine, xanthine, theobromine, caffeine, uric acid and isoguanine,
wherein the pyrimidine-based compound is one or more selected from among uracil, cytosine and thymine,
wherein the purine-based compound is present in an amount from 0.001 wt % to 1 wt % based on 100 wt % of the composition,
wherein the pyrimidine-based compound is present in an amount from 0.001 wt % to 1 wt % based on 100 wt % of the composition; and
wherein, when the composition is contacted with an organic solution containing an acyl halide, an interfacial polymerization forms a polyamide active layer.