Patents Assigned to #M Innovative Properties Company Minnesota Mining and Manufacturing Co.
  • Method for laminating a viral barrier microporous membrane to a nonwoven web to prevent transmission of viral pathogens
    Patent number: 5935370
    Abstract: The invention discloses a method of preventing transmission of viral pathogens between a source of viral pathogens and a target of said viral pathogens comprising positioning between said source and said target a microporous membrane material comprising (1) a thermoplastic polymer or polytetrafluoroethylene and (2) a water- and oil-repellent fluorochemical compound which provides said membrane with oleophobic, hydrophobic and viral barrier properties.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: August 10, 1999
    Assignee: #M Innovative Properties Company Minnesota Mining and Manufacturing Co.
    Inventors: William K. Weimer, Gretchen E. Keenan, Robert J. Kinney, James S. Mrozinski, Philip D. Radovanovic