Process for producing supported celluosic membranes and products

Details Process for producing supported celluosic membranes and products Process for producing supported celluosic membranes and products

1987-10-05

1990-01-16

Jones, W. Gary

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2105003, 427245, 264 458, 264 464, B01D 3100

Patent

active

048941573

ABSTRACT:
A continuous process for producing a microporous cellulosic membranes supported with an integral non-woven polymer web by preparing a casting lacquer comprising at least one cellulosic polymer, at least one solvent and at least one non-solvent wherein the casting lacquer is at the point of incipient gelation.

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patent: 3524753 (1964-11-01), Sharp
patent: 3607329 (1971-09-01), Manjikian
patent: 3648845 (1972-03-01), Riley
patent: 3762566 (1973-10-01), Del Pico
patent: 3884801 (1975-05-01), Kestling
patent: 3969548 (1976-07-01), Hunter et al.
patent: 4183811 (1980-01-01), Walch et al.
patent: 4206050 (1980-06-01), Walch et al.
patent: 4214994 (1980-07-01), Kitano et al.
patent: 4483771 (1984-11-01), Koch

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