Title:
FILTRATION MATERIAL AND FILTER
Document Type and Number:
WIPO Patent Application WO/2024/085211
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a filtration material and a filter that combine high trapping efficiency and low pressure loss and have high elongation. A filtration material according to the present invention comprises a fiber sheet that is composed of fibers which contain a plurality of polyolefin resins having different melt flow rates (MFR), wherein the total of the tensile elongation in the MD direction and the tensile elongation in the TD direction is not less than 100%, and a quality coefficient value expressed by the following formula is 1.8 or more. Quality coefficient value=-Ln((100-trapping efficiency [%])/100)/pressure loss [mmAq]
Inventors:
SAKAGUCHI KEIKO (JP)
MASUMORI TADAO (JP)
MASUMORI TADAO (JP)
Application Number:
PCT/JP2023/037818
Publication Date:
April 25, 2024
Filing Date:
October 19, 2023
Export Citation:
Assignee:
TOYOBO MC CORP (JP)
International Classes:
B01D39/16; B03C3/28
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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