Polymeric microfiber filter medium

Details Polymeric microfiber filter medium Polymeric microfiber filter medium

1989-11-17

1992-07-28

Cintins, Ivars

Liquid purification or separation

Processes

Separating

210496, 21049701, 2105001, B01D 3916

Patent

active

051338785

ABSTRACT:
A filter medium is provided comprising a fibrous matrix to whose surfaces is grafted a superstrate comprising a polymer with quaternary ammonium groups and made from an ethylenically unsaturated monomer containing a quaternary ammonium or amino group, the filter medium having a positive zeta potential at pH 7 and preferably an enhanced Latex Adsorption Capacity together with low extractables and quick rinse-up.

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