Patents by Inventor Ju C. Liu

Ju C. Liu 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).

  • Primer for bonding low surface energy plastics with cyanoacrylate adhesives and bonding method employing same
    Patent number: 5079098
    Abstract: The invention relates to a quaternary ammonium salt primer for bonding surfaces with cyanoacrylate adhesives, and to a method of bonding surfaces using such quaternary ammonium compounds, particularly surfaces characterized by low surface energy values, such as polyolefins and rubber-modified polyolefins. A preferred quaternary salt is tetra n-butyl ammonium fluoride. Preferred solvents for the quaternary ammonium salt are non-aqueous, low surface tension organic solvents.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: January 7, 1992
    Assignee: Loctite Corporation
    Inventor: Ju C. Liu