Hollow fiber membranes with fusion-bonded end portions

Details Hollow fiber membranes with fusion-bonded end portions Hollow fiber membranes with fusion-bonded end portions

1990-09-21

1991-11-19

Dawson, Robert A.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Membrane secured with adhesive of specified composition

2103218, 21032189, 2103219, 55158, B01D 6302, B01D 7106

Patent

active

050663976

ABSTRACT:
A filter element comprising porous hollow fiber filter membranes arranged in a lengthwise direction and fusion-bonded together at one or both of their respective end portions to form a unified terminal block which has through-holes communicating with the hollows of the remaining unbonded portions of the membranes and having diameters substantially the same as the inner diameters of the membranes. The filter element not only is excellent in resistance to heat and chemicals, but also can realize an efficient filtration.

REFERENCES:
patent: 3228876 (1966-01-01), Mahon
patent: 3315740 (1967-04-01), Withers
patent: 4031012 (1977-06-01), Gies
patent: 4605500 (1986-08-01), Takemura et al.
patent: 4628584 (1986-12-01), Clark et al.
patent: 4657743 (1987-04-01), Kanno
patent: 4720342 (1988-01-01), Takemura et al.
patent: 4749551 (1988-06-01), Borgione
patent: 4781889 (1988-11-01), Fukasawa et al.

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