Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1988-07-01
1989-07-25
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 68, 55158, B01D 5322
Patent
active
048510149
ABSTRACT:
The invention is a semi-permeable membrane consituting a thin discriminating layer of bisphenolic polycarbonate, polyester, or polyestercarbonate, with a significant portion of the bisphenolic residues in the polymer backbone being based on tetrafluorobisphenol F. The invention also includes a method of separating gases using the described membrane.
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Spitzer Robert
The Dow Chemical Company
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