Microporous membrane, method of manufacture, and method of use

Details Microporous membrane, method of manufacture, and method of use Microporous membrane, method of manufacture, and method of use

B - Operations, Transporting

01

D

B01D 71/56 (2006.01) B01D 61/42 (2006.01) B01D 63/14 (2006.01) B01D 67/00 (2006.01) C08J 7/18 (2006.01)

Patent

CA 2086759

Microporous membranes having positive zeta potentials in alkaline pH are provided by radiation grafting diallyldimethylammonium dimethyl ammonium chloride to the surfaces of a microporous, polyamide membrane using ionizing radiation. The membranes have particular use in microelectronics manufacture where quick rinse up times with ultrapure water are required.

Des membranes microporeuses ayant des potentiels zêta positifs en pH alcalin sont obtenues par greffage par rayonnement de chlorure de diallyldiméthylammonium aux surfaces d'une membrane microporeuse de polyamide à l'aide des rayonnements ionisants. Les membranes ont une application particulière dans la fabrication des pièces microélectroniques où des temps de rinçage rapide au moyen d'eau ultra-pure sont nécessaires.

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