Japan, Sept. 18 -- NITTO DENKO CORP has got intellectual property rights for 'COMPOSITE SEMIPERMEABLE MEMBRANE AND SPIRAL MEMBRANE ELEMENT.' Other related details are as follows:
Application Number: JP,2022-204169
Category (FI): B01D69/12,B01D69/10,B01D71/56,B01D63/10,B01D69/00
Stage: PROBLEM TO BE SOLVED: To provide: a composite semipermeable membrane capable of enhancing adhesion between a separation functional layer provided with a coating layer and a protective tape while maintaining an effect of the coating layer to some extent; and a spiral membrane element using the same.SOLUTION: A composite semipermeable membrane includes: a porous support; a separation functional layer formed on the porous support; and a coating layer, which is...