Isocyanurate crosslinked polyurethane membranes and their use fo

Details Isocyanurate crosslinked polyurethane membranes and their use fo Isocyanurate crosslinked polyurethane membranes and their use fo

1990-12-03

1991-12-24

Sever, Frank

Liquid purification or separation

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Material

21050033, B01D 754

Patent

active

050750062

ABSTRACT:
The present invention is directed to non-porous isocyanurate-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 perstraction conditions.

REFERENCES:
patent: 2930754 (1960-03-01), Stuckey
patent: 2958656 (1960-11-01), Stuckey
patent: 3370102 (1968-02-01), Carpenter et al.
patent: 4115465 (1978-09-01), Elfert et al.
patent: 4366062 (1982-12-01), Kurihara et al.
patent: 4557949 (1985-12-01), Kurihara et al.
patent: 4962271 (1990-10-01), Black et al.

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