Composite membrane with multi-layered active layer

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United States of America Patent

PATENT NO 9561474
SERIAL NO

13491506

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Abstract

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A thin film composite membrane includes an active layer on a support membrane, wherein the active layer includes at least two chemically distinct first and second crosslinked polyamide film sub-layers. The first film sub-layer includes a polyamide unit; and the second film sub-layer includes a copolyamide with two chemically distinct polyamide units. The first film sub-layer is closer to the support than is the second film sub-layer.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION;KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY (KACST)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alrasheed, Radwan A San Jose, US 2 5
Davis, Blake W Hollister, US 14 241
Diep, Jacquana T San Jose, US 5 17
Dubois, Geraud J Los Altos, US 19 48
Na, Young-Hye San Jose, US 57 509
Nassar, Majed S San Jose, US 2 5
Vora, Ankit San Jose, US 58 363

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