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Patent Searching and Data


Title:
METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE POROUS MEMBRANE
Document Type and Number:
Japanese Patent JP2006124506
Kind Code:
A
Abstract:

To provide a method for producing a PTFE porous membrane having a large pore size and able to realize a thicker PTFE porous membrane.

The method for producing the PTFE porous membrane includes a drawing process in which a PTFE sheet 1a obtained by drawing a sheet-like product containing PTFE powder in a first direction is drawn in a second direction (direction of the arrow head B) perpendicular to the first direction. In the drawing process, the PTFE sheet 1a is drawn in the second direction by shrinking the same in the first direction.


Inventors:
HORIE YURI
Application Number:
JP2004314477A
Publication Date:
May 18, 2006
Filing Date:
October 28, 2004
Export Citation:
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Assignee:
NITTO DENKO CORP
International Classes:
C08J9/00; B29C55/14; B29K27/18; B29K105/04; C08L27/18
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners