Title:
増強された汚れ保持容量を有するフィルタ構造
Document Type and Number:
Japanese Patent JP6963592
Kind Code:
B2
Abstract:
A fluid filtration device containing a composite filter media having a coarse porous polymeric nonwoven interlayer located between first and second polymeric fiber containing filter mats. The fiber diameters of the fibers in the first and second filter mats are different from each other, and each filter mat has a different pore size rating. The first and second polymeric fibers in the filter mats can be electrospun nanofibers. The interlayer has a coarser pore size when compared to the either the first or second filter mats, such that the resulting composite media has an increased dirt holding capacity compared to filter layers that are layered directly over each other without the presence of a coarse interlayer therebetween.
Inventors:
Sal Zilja
David Niem
Sherry ashby leon
Gabriel Tasik
David Niem
Sherry ashby leon
Gabriel Tasik
Application Number:
JP2019141958A
Publication Date:
November 10, 2021
Filing Date:
August 01, 2019
Export Citation:
Assignee:
EMD Millipore Corporation
International Classes:
B01D39/16; B01D63/08; B01D63/14; B01D69/00; B01D69/10; B01D69/12; B01D71/10; B01D71/16; B01D71/26; B01D71/28; B01D71/30; B01D71/34; B01D71/38; B01D71/42; B01D71/48; B01D71/52; B01D71/54; B01D71/56; B01D71/60; B01D71/62; B01D71/64; B01D71/68; B32B5/24
Domestic Patent References:
| JP2009006272A | ||||
| JP2010000407A | ||||
| JP2013236985A | ||||
| JP62181797A | ||||
| JP2005065647A | ||||
| JP2005333886A |
Attorney, Agent or Firm:
Kawaguchi International Patent Office