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Title:
SEPARATIVE MEMBRANE SUPPORTING BODY, SEPARATIVE MEMBRANE AND FLUID SEPARATION ELEMENT USING SEPARATIVE MEMBRANE SUPPORTING BODY
Document Type and Number:
Japanese Patent JP2009095828
Kind Code:
A
Abstract:

To provide a separative membrane supporting body having excellent membrane manufacturability and mechanical strength when supporting separative membranes such as a microfiltration membrane, an ultrafiltration membrane, a nanofilter membrane, and a reverse osmosis membrane, and also to provide a separative membrane and a fluid separation element using the separative membrane supporting body.

The separative membrane supporting body includes a long filament nonwoven fabric which has a transmitted light brightness variation coefficient of 1-6% and is configured of a thermoplastic continuous filament. Preferably, the thermoplastic continuous filament is a composite type filament having low-melting point polymer with a melting point which is 10-140C lower than the melting point of high-melting point polymer around the high-melting point polymer.


Inventors:
MATSUURA HIROYUKI
HANE RYOICHI
NAKANO YOHEI
Application Number:
JP2008247564A
Publication Date:
May 07, 2009
Filing Date:
September 26, 2008
Export Citation:
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Assignee:
TORAY INDUSTRIES
International Classes:
B01D69/10; B01D63/08
Domestic Patent References:
JP2006043940A2006-02-16
JP2003306863A2003-10-31
JP2000061280A2000-02-29
JP2004285509A2004-10-14
JP2001050902A2001-02-23
JP2006043940A2006-02-16
JP2003306863A2003-10-31
JP2000061280A2000-02-29
JP2004285509A2004-10-14
JP2001050902A2001-02-23
Foreign References:
WO2006068100A12006-06-29



 
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