Document Type and Number:
Japanese Patent JPS5220195
Kind Code:
B2
Abstract:
A composite tubular assembly comprising a membrane for membrane filtration fixed to the inner side of a tube of non woven material, consisting of a wound band of a sealable fibres containing non woven material, which may be helically or non helically wound, consecutive overlapping windings of the band being completely interconnected by ultrasonic heatsealing and thereby forming a smooth inner wall of the tube.
Application Number:
JP12405573A
Publication Date:
June 01, 1977
Filing Date:
November 06, 1973
Export Citation:
International Classes:
D04H5/06; B01D27/06; B01D29/13; B01D39/00; B01D61/08; B01D61/18; B01D63/00; B01D63/06; B01D69/04; B01D69/10; B01D71/02; B29C53/00; B29C53/56; B29C53/58; B29C53/78; B29C53/84; B29C65/00; B29C65/08; B29D23/00; F16L9/12; F16L9/16