Porous fluorine resin membrane and process for preparing the sam

Details Porous fluorine resin membrane and process for preparing the sam Porous fluorine resin membrane and process for preparing the sam

1986-07-11

1987-10-27

Foelak, Morton

Liquid purification or separation

Filter

Material

21050036, 521 61, 521 64, 521134, 521145, B01D 1300

Patent

active

047028360

ABSTRACT:
The invention relates to a porous membrane made of a particular fluorine resin, having excellent chemical resistance, excellent thermal resistance, excellent filtration performance and excellent mechanical properties, and having uniform porous structure comprising minute pores, and also relates to a process for preparing the same. In particular, the invention relates to a porous membrane suited for a microfilter having excellent thermal resistance and excellent filtration performance, especially a porous membrane suited for a microfilter for use in purification of chemicals such as strong acid and strong alkali by utilizing the excellent chemical resistance, and also a process for preparing the same.

REFERENCES:
patent: 2915483 (1959-12-01), Barnhart
patent: 3379658 (1968-04-01), Kemper
patent: 3536796 (1970-10-01), Rock
patent: 4181983 (1980-01-01), Kulkarni
patent: 4623670 (1986-11-01), Mutoh et al.
patent: 4629563 (1986-12-01), Wrasidlo

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