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US 11,718,712 B2Granted
Composition for interfacial polymerization of polyamide and manufacturing method for water treatment separation membrane using same
AssigneeLG Chem, Ltd.
InventorsEunkyoung Byun, Youngju Lee, Lakwon Choi, Chong Kyu Shin
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Abstract
Provided is a composition for interfacial polymerizing polyamide including an amine compound; and one or more types of compounds selected from among a purine-based compound and a pyrimidine-based compound of Chemical Formula 1: wherein, in Chemical Formula 1: X is N or NH; Y is O or OH; Z is O, OH or NH2; R1 and R2 are each hydrogen or a substituted or unsubstituted alkyl group; and is a single bond or a double bond, and a method for manufacturing a water-treatment membrane and a water-treatment membrane using the same.
Claims4
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.
6 more elements
Dependencies are inferred from the claim text.