Composite membrane, method of preparation and use

Details Composite membrane, method of preparation and use Composite membrane, method of preparation and use

1988-10-31

1990-10-16

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55158, 4273855, B01D 5322, B01D 6136, B01D 7156

Patent

active

049631659

ABSTRACT:
A membrane for gas separation or pervaporation. The membrane is a composite of a microporous support membrane and an ultrathin permselective membrane, the permselective membrane being made from a polyamide-polyether block copolymer having the general form: ##STR1## where PA is a saturated aliphatic polyamide segment, PE is a polyether segment, and n is a positive integer. The membrane is particularly useful in separating polar gases from non-polar gases.

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Pebax Technical Information, 12 pages.

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