Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Film for a separator of electrochemical apparatus, and production method and use thereof
 This invention provides a film comprising a cross-linked polymer having an oxyalkylene group or a cross-linked polymer having an oxyalkylene group through a urethane bond, as a constituent component, a production method of the film, and an electrochemical apparatus using the film as a separator. The film for separator of an electrochemical apparatus can be easily and uniformly processed, can include an electrolytic solution, exhibits good film thickness and ensures excellent safety and reliability. The electrochemical apparatus is free of leakage of the solution. 
Showa Denko K.K.
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Masataka Takashi Shuichi
Takeuchi Ohkubo Naijo