Patents Assigned to Mitsubishi Monsanto Chemical Company Limited
  • Laminated film having gas barrier properties
    Patent number: 5100720
    Abstract: A gas barrier laminated film comprising a thermoplastic film having a polar group and a thin silicon oxide layer formed on the one side of the thermoplastic film in which the bond energy of silicon in the silicon oxide layer varies along the direction of the thickness of the layer and becomes large in the vicinity of the plastic film. It has a high level of gas barrier properties for steam and oxygen and is suitable for a variety of packaging materials.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: March 31, 1992
    Assignee: Mitsubishi Monsanto Chemical Company Limited
    Inventors: Tsutomu Sawada, Shinichi Ohashi, Shigenobu Yoshida