Patent ID: 9492789
Filing Date: 2016-11-15
CPC Classification: B01D,C02F,C08F

Claim Text:
1. A draw solute for forward osmosis, the draw solute comprising: a temperature-sensitive oligomer compound having a main chain with a terminal end, the temperature-sensitive oligomer compound including a structural unit including a temperature-sensitive moiety, the temperature-sensitive oligomer compound further including a hydrophilic functional group at the terminal end of the main chain, the temperature-sensitive moiety being a first monovalent substituent represented by the following Chemical Formula 1, a second monovalent substituent represented by the following Chemical Formula 2, or a divalent substituent represented by the following Chemical Formula 3, R R R wherein the temperature-sensitive oligomer compound has a number average molecular weight of about 300 to about 1000, and wherein the hydrophilic functional group is —NH