Patent ID: 8613363
Filing Date: 2013-12-24
Classification: A61L,B01D,B01J,C02F,C12H,D21H,Y10T

Abstract:
1. A method of immobilizing particles comprising the following steps in the sequence set forth: providing fibers; fibrillating said fibers at a temperature greater than about 30° C. to form fibrillated fibers having an average fiber diameter of less than about 1000 nm; providing a plurality of active agents wherein an average diameter of said fibrillated fibers is less than an average particle size of said active agents; treating at least a portion of at least some of said fibrillated fibers and/or said active agents with a microbiological interception enhancing agent, said microbiological interception enhancing agent comprising a colloidal metal-cationic complex of a biologically active metal precipitated with a counter ion of a cationic material residing on said at least portion of said at least some of said fibrillated fibers and/or said active agents whereby the colloidal metal precipitates adjacent to the cationic material; admixing together said fibrillated fibers and said active agent; immobilizing said microbiological interception enhancing agent treated admixed fibrillated fibers and active agent into an integrated paper having a mean flow path of less than about 2 μm whereby said immobilized fibrillated fibers, active agents and microbiological interception enhancing agent reside within and throughout an entire thickness of said integrated paper.