Single-layer membrane film for batteries having a shut-off...

Details Single-layer membrane film for batteries having a shut-off... Single-layer membrane film for batteries having a shut-off...

B - Operations, Transporting

29

C

B29C 55/12 (2006.01) C08J 9/18 (2006.01) C08L 23/10 (2006.01) C08L 23/12 (2006.01) H01M 2/16 (2006.01)

Patent

CA 2723394

The invention relates to a biaxially oriented single-layer microporous film that has a shut-off function and is made of propylene homopolymer, propylene block copolymer I, and B-nucleation agent. The melting range of the propylene block copolymer I starts at a temperature ranging from 50 to 120°C.

L'invention concerne un film microporeux monocouche à orientation biaxiale, à fonction de rupture, à base d'homopolymère de propylène et de copolymère séquencé de propylène. La plage de fusion du copolymère séquencé de propylène (I) commence à une température comprise entre 50 à 120°C.

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