Invention Grant
- Patent Title: Method for producing laminated porous film
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Application No.: US15302201Application Date: 2015-04-03
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Publication No.: US10230085B2Publication Date: 2019-03-12
- Inventor: Junji Suzuki
- Applicant: Sumitomo Chemical Company, Limited
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
- Current Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: JP2014-079159 20140408
- International Application: PCT/JP2015/061180 WO 20150403
- International Announcement: WO2015/156377 WO 20151015
- Main IPC: B05D5/00
- IPC: B05D5/00 ; H01M2/14 ; H01M2/16 ; H01M10/42 ; H01M10/052

Abstract:
A method is provided for producing a laminated porous film including: a porous base material layer containing polyolefin as a main component; a filler layer containing inorganic particles as a main component; and a resin layer containing resin particles as a main component, the filler layer and resin layer being provided on opposite surfaces of the porous base material layer. The method includes steps of: applying, on one surface of the porous base material layer, a coating solution containing more than 50 wt % of inorganic particles, and drying the coating solution to form a filler layer, and thereafter applying, on the other surface of the porous base material layer, a coating solution containing more than 50 wt % of resin particles, and drying the coating solution to form a resin layer, the weight percentages (wt %) being based on total weight of components other than the medium of each coating solution.
Public/Granted literature
- US20170025659A1 METHOD FOR PRODUCING LAMINATED POROUS FILM Public/Granted day:2017-01-26
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