Title:
POROUS FILM
Document Type and Number:
WIPO Patent Application WO/1996/035503
Kind Code:
A1
Abstract:
A porous film that is produced from a substantially nonsulfonated aromatic polyether-ketone with a crystallinity of 10 wt.% or above by the wet film forming technique and that has pores with a mean pore diameter of 0.02-30.00 'mu'm and a pore percentage of 7-90 % and an anisotropic structure. This film is crytalline and excellent in the resistances to heat, chemicals and hot water, water permeability, and the balance between water permeability and fractionation performance.
Inventors:
SHIMODA TERUYOSHI (JP)
HACHIYA HIROSHI (JP)
HACHIYA HIROSHI (JP)
Application Number:
PCT/JP1996/000495
Publication Date:
November 14, 1996
Filing Date:
March 01, 1996
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
SHIMODA TERUYOSHI (JP)
HACHIYA HIROSHI (JP)
SHIMODA TERUYOSHI (JP)
HACHIYA HIROSHI (JP)
International Classes:
B01D67/00; B01D71/52; B29D7/01; (IPC1-7): B01D71/52
Foreign References:
| JPH03174231A | 1991-07-29 |
Other References:
See also references of EP 0824959A4
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