Invention Grant
- Patent Title: Laminated body
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Application No.: US15627629Application Date: 2017-06-20
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Publication No.: US10361418B2Publication Date: 2019-07-23
- Inventor: Toshihiko Ogata , Chikae Yoshimaru , Chikara Murakami
- 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: JP2016-123055 20160621
- Main IPC: H01M2/14
- IPC: H01M2/14 ; H01M2/16 ; H01M10/0525 ; H01M10/0585 ; B05D1/18 ; B05D1/42

Abstract:
To afford a laminated body that is usable as a nonaqueous electrolyte secondary battery separator and that is not easily curled, a laminated body includes: a porous base material containing a polyolefin-based resin as a main component; and a porous layer containing a polyvinylidene fluoride-based resin, the porous base material having a temperature rise ending period of a particular value with respect to the amount of resin per unit area, the polyvinylidene fluoride-based resin containing crystal form α in an amount of not less than 36 mol % with respect to 100 mol % of a total amount of the crystal form α and crystal form β contained in the polyvinylidene fluoride-based resin.
Public/Granted literature
- US20170365833A1 LAMINATED BODY Public/Granted day:2017-12-21
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