CYLINDRICAL FILTER

PROBLEM TO BE SOLVED: To provide a cylindrical filter less prone to be lowered in filtering efficiency and capable of being produced simply. SOLUTION: A cylindrical filter wherein a filter layer provided to the periphery of a porous cylinder has a main filter layer wherein two or more nonwoven subst...

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Bibliographic Details
Main Authors TOKIWA TAKASHI, KOBAYASHI HITOSHI, AIKAWA TOSHIO
Format Patent
LanguageEnglish
Published 10.04.2001
Edition7
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a cylindrical filter less prone to be lowered in filtering efficiency and capable of being produced simply. SOLUTION: A cylindrical filter wherein a filter layer provided to the periphery of a porous cylinder has a main filter layer wherein two or more nonwoven substantially same in mean pore size and having an apparent density of 0.45-0.6 g/cm3 are laminated under heating and pressure.
Bibliography:Application Number: JP19990273536