Title:
CONVERSION OF HYDROPHOBIC SHEET TO HYDROPHILIC FINE FIBROUS POLYMER FILTER SHEET
Document Type and Number:
Japanese Patent JPS5929016
Kind Code:
A
Abstract:
Microfibrous, polymeric sheets and filter elements prepared therefrom comprising a normally hydrophobic, microfibrous, polymeric web, wherein the surfaces of the microfibrous making up the web are coated with a cured, precipitated cationic, thermosetting binder resin or polymer, which elements are hydrophilic and have a positive zeta potential.The corresponding process comprises(1) applying a solution of a precipitating agent to a hydrophobic web;(2) applying a binder resin to the web of step (1);(3) working the web of step (2) to mix the agent and binder, thereby facilitating the precipitation of the binder resin and the distribution of the precipitated binder resin as a coating on the surface of the microfibers of the web; and(4) curing the web of step (3) to form desired filter elements.
Inventors:
DEBITSUDO BORISU POORU
PIITAA JIYON DEGEN
TOOMASU CHIYAARUZU GUSERU
PIITAA JIYON DEGEN
TOOMASU CHIYAARUZU GUSERU
Application Number:
JP12754283A
Publication Date:
February 16, 1984
Filing Date:
July 13, 1983
Export Citation:
Assignee:
PALL CORP
International Classes:
A61L2/02; B01D39/08; B01D39/16; C02F1/28; D06M15/00; D06M101/00; D06M101/16; (IPC1-7): B01D39/16; D06M15/72
Attorney, Agent or Firm:
Hideto Asamura
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