Process for forming porous polymeric product from a nonporous po

Details Process for forming porous polymeric product from a nonporous po Process for forming porous polymeric product from a nonporous po

1992-04-14

1994-01-11

Spear, Frank

Liquid purification or separation

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Material

21050036, 21050038, 2105004, 21050041, B01D 6900

Patent

active

052778118

ABSTRACT:
A product having a porous polymeric structure is formed from a non-porous polymeric sheet by sequential contact of the non-porous sheet with a solvent for the sheet and then a non-solvent for the sheet. The porous product can be porous through all or a portion of its thickness.

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patent: 5009824 (1991-04-01), Walch et al.
patent: 5013339 (1991-05-01), Mahoney et al.
patent: 5137635 (1992-08-01), Seita et al.

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