Invention Grant
- Patent Title: Crystalline polymer microporous film, manufacturing method of the same, and filtration filter
- Patent Title (中): 结晶聚合物微孔薄膜，其制造方法和过滤过滤器
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Application No.: US12203174Application Date: 2008-09-03
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Publication No.: US08011518B2Publication Date: 2011-09-06
- Inventor: Hirohisa Hokazono , Toshiki Taguchi , Hidetaka Okada
- Applicant: Hirohisa Hokazono , Toshiki Taguchi , Hidetaka Okada
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-229183 20070904
- Main IPC: B01D39/00
- IPC: B01D39/00 ; B01D39/02 ; B01D43/02 ; B01D29/00
Abstract:
To provide a crystalline polymer microporous film including: a laminate consisting of two or more crystalline polymer layers formed of crystalline polymers; and multiple pores penetrating through the laminate in the thickness direction thereof, wherein an average pore size of each of the crystalline polymer layer changes along the thickness thereof.
Public/Granted literature
- US20090061205A1 CRYSTALLINE POLYMER MICROPOROUS FILM, MANUFACTURING METHOD OF THE SAME, AND FILTRATION FILTER Public/Granted day:2009-03-05
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