Patents by Inventor John E. Abrahamson

John E. Abrahamson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Moisture barrier membrane with tearable release liner composite
    Patent number: 7550187
    Abstract: An exemplary moisture barrier membrane 10 comprises a waterproof adhesive layer, (14) a carrier support, (12) and a release liner (16) composite having a paper sheet, (20) cutting strings, (22) a polyolefin (24) coating or film for holding the strings against the paper and apart from the waterproof adhesive layer, and a release agent (26) such as silicone or wax over the polyolefin coating or film. This construction allows for relatively thin paper and strings to be used, such that tear resistance is conferred upon the release liner composite as a whole.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 23, 2009
    Assignee: W. R. Grace & Co. -Conn.
    Inventors: Jyoti Seth, John E. Abrahamson, James R. Hansen, Carmen J. Melillo