Polyurethane compositions

Details Polyurethane compositions Polyurethane compositions

1992-06-05

1994-11-01

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Cylindrical membrane

21032189, 21050023, B01D 6302

Patent

active

053605438

ABSTRACT:
The invention relates to polyurethane compositions that can be formulated as a two component systems of a first component of a polyol and an amine of formula (I): ##STR1## and a second component of isocyanate. This invention further relates to methods of formulating those polyurethanes, and to use of those polyurethanes in separatory devices.

REFERENCES:
patent: 2956031 (1960-10-01), Khawam
patent: 3362911 (1968-01-01), Byers et al.
patent: 3362921 (1968-01-01), Ehrlich et al.
patent: 3483150 (1969-12-01), Ehrlich et al.
patent: 3962094 (1976-06-01), Davis et al.
patent: 4134216 (1977-07-01), Jansen et al.
patent: 4847307 (1989-07-01), Dewhurst et al.
patent: 4865735 (1989-09-01), Chu et al.
patent: 4876308 (1989-10-01), Melby et al.

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