Filter sheet

Details Filter sheet Filter sheet

1988-04-21

1989-08-22

Therkorn, Ernest G.

Liquid purification or separation

Filter

Material

210505, 210508, 1621643, 1621646, H01D 3918

Patent

active

048593400

ABSTRACT:
A filter media sheet comprising fine particulate and a self-bonding matrix of cellulose fiber, the surfaces of at least one of which are modified with a polyamido-polyamine epichlorhydrin cationic resin, the matrix incorporating beaten cellulose fiber to provide a Canadian Standard Freeness of less than 600 ml.

REFERENCES:
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patent: 3573158 (1971-03-01), Pall
patent: 3992251 (1976-11-01), Lipowski
patent: 4007113 (1977-02-01), Ostreicher
patent: 4007114 (1977-02-01), Ostreicher
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patent: 4238334 (1980-12-01), Halbfoster
patent: 4305782 (1981-12-01), Ostreicher
patent: 4309247 (1982-01-01), Hou
patent: 4321288 (1982-03-01), Ostreicher
patent: 4511473 (1985-04-01), Hou
patent: 4578150 (1986-05-01), Hou

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