Patents Examined by Christian Wales
  • Patent number: 8669002
    Abstract: To provide a thermoplastic resin microporous film being difficult in longitudinal tearing and excellent in tear resistance; a microporous film comprising a thermoplastic resin, wherein a melt flow rate of the thermoplastic resin in the microporous film is in the range of 0.1 to 2.0 g/10 min, tensile strength in a cross-machine direction is in the range of 5 to 10 MPa and tensile elongation in the cross-machine direction is 300% or more.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: March 11, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yasuhiro Yamamoto, Hitoshi Satou, Kazuyuki Fukudome