Patents by Inventor Ju M. Hung

Ju M. Hung 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).

  • Catalyst for reactive hot melt adhesives
    Patent number: 5550191
    Abstract: A catalyzed polyurethane reactive hot melt adhesive is prepared from a reactive polyurethane prepolymer and 0.05 to 0.6% by weight of a 2,2'dimorpholinoethyl ether or di(2,6-dimethylmorpholinoethyl)ether catalyst. The adhesive is characterized by improved curing speed with little or no effect on the thermal stability.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: August 27, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ju M. Hung, Malcolm Graham