Title:
POLYIMIDE POROUS FILM
Document Type and Number:
Japanese Patent JP2007169661
Kind Code:
A
Abstract:
To provide a polyimide film having penetration holes with a specific diameter suitable for a separator or the like, and also to provide a production method for the same.
The polyimide porous film has penetration holes with diameters of 0.01-10 μm. The method of producing the polyimide porous film is characterized by processes of laminating a porous film on a cast film of polyamic acid varnish and then immersing in a poor solvent.
Inventors:
OYA NOBUO
Application Number:
JP2007073976A
Publication Date:
July 05, 2007
Filing Date:
March 22, 2007
Export Citation:
Assignee:
UBE INDUSTRIES
International Classes:
C08J9/28
Domestic Patent References:
| JPH11310658A | 1999-11-09 | |||
| JPH09132667A | 1997-05-20 | |||
| JPH05148383A | 1993-06-15 | |||
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| JPS62177039A | 1987-08-03 | |||
| JPH10302749A | 1998-11-13 | |||
| JP2000030686A | 2000-01-28 |