C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/28, 182/15.4
C08J 9/28 (2006.01) B01D 61/36 (2006.01)
Patent
CA 2020696
ABSTRACT OF THE DISCLOSURE The present invention is directed to non- porous isocyanate-crosslinked polyurethane membranes. These membranes are useful for the separation of aromatic hydrocarbons from non-aromatic hydrocarbons. The separation can be performed using any commonly accepted membrane separation technique, e.g. reverse osmosis, dialysis, pervaporation or perstraction but is preferably performed under pervaporation or perstrac- tion conditions.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
Schucker Robert C.
LandOfFree
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