Fluid separatory devices having improved potting and adhesive co

Details Fluid separatory devices having improved potting and adhesive co Fluid separatory devices having improved potting and adhesive co

1984-06-04

1989-11-07

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Membrane secured with adhesive of specified composition

2103218, 21032189, 528 56, B01D 1300

Patent

active

048790320

ABSTRACT:
Fluid separatory devices containing novel polyurethane potting and adhesive compositions comprising the reaction product of an aliphatic polyisocyanate with a propoxylated polyether amine in the presence of a metallo-organic catalyst selected from the group consisting of the organic acid salts and the .beta.-diketonates of zinc, iron, copper, manganese, mercury, lead, and mixtures thereof, said catalyst being present in an amount effective to substantially increase the cure rate and prevent bubble formation. Nontoxic metallo-organic catalysts based on zinc, iron, and copper are preferred for use in separatory devices for blood dialysis and water purification.

REFERENCES:
patent: 4224164 (1980-09-01), Brauer et al.
patent: 4332927 (1982-06-01), Simone
patent: 4359359 (1982-11-01), Gerlach et al.

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