Patents by Inventor Norman E. Daughenbaugh, Jr.

Norman E. Daughenbaugh, Jr. 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).

  • Light colored, aromatic-modified piperylene resins
    Patent number: 5177163
    Abstract: A tackifier resin is prepared by polymerizing a monomer mixture of 10-70% piperylene concentrate and 30-90% of a vinyl aromatic monomer in the presence of a boron trifluoride catalyst and an inert diluent. The resin is water white in color, has a Gardner number of less than one, a softening point of 60.degree. to 120.degree. C. and a polydispersity of 1 to 5. The tackifier is used in formulations based on EVA, block copolymers and polyolefins for hot melt and pressure sensitive adhesive applications.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: January 5, 1993
    Assignee: Hercules Incorporated
    Inventors: Sung G. Chu, Norman E. Daughenbaugh, Jr., Mark J. Rosner
  • Vinyl aromatic/terpene/phenol terpolymer
    Patent number: 4701517
    Abstract: Disclosed are terpolymers having a Ring and Ball softening point of 69.degree. C. to 130.degree. C. prepared from a vinyl-substituted aromatic hydrocarbon, a monoterpene hydrocarbon and a phenol. The terpolymers are useful as tackifiers in adhesive compositions.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: October 20, 1987
    Assignee: Hercules Incorporated
    Inventor: Norman E. Daughenbaugh, Jr.