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POLYOLEFIN RESIN POROUS FILM AND BATTERY SEPARATOR

  • US 20130017430A1
  • Filed: 03/15/2011
  • Published: 01/17/2013
  • Est. Priority Date: 03/18/2010
  • Status: Abandoned Application
First Claim
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1. A polyolefin resin porous film comprising:

  • a first layer comprising as a main component a polypropylene resin composition, anda second layer comprising as a main component a polyethylene resin composition B,whereina melting point of the polyethylene resin composition is 130°

    C. or higher, anda melt flow rate of the polyethylene resin composition is 2.0 to 15 g/10 minutes,

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