Semipermeable membrane support and process of preparation...

Details Semipermeable membrane support and process of preparation... Semipermeable membrane support and process of preparation...

2005-07-19

2005-07-19

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Filter

Material

C210S500220, C210S321600, C210S490000, C210S491000, C210S652000, C428S297100, C428S299700, C162S157300, C442S327000, C442S341000, C442S344000, C442S346000, C442S361000, C442S374000

Reexamination Certificate

active

06919026

ABSTRACT:
A semipermeable membrane support includes, a non-woven fabric including main fiber and binder fiber, both of which are formed of synthetic resin fine fiber, the non-woven fabric being manufactured by heating and pressing after paper making, wherein the semipermeable membrane support has a ratio of a tensile strength in a paper feeding direction to that in a width direction of 2:1 to 1:1.

REFERENCES:
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patent: 5-35009 (1993-05-01), None
patent: 10-225630 (1998-08-01), None
Warren, et al; “The Evolution of a Spunbonded Non-Woven for Filtration Applications”, DuPont; 2000, <printed from the interne www.filtration.dupont.com/lit/2000.pdf>.

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