Patents by Inventor Ester E. C.G. Gielens

Ester E. C.G. Gielens 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).

  • Low color, aromatic modified C5 hydrocarbon resins
    Patent number: 6605680
    Abstract: Low color, aromatic modified C5 hydrocarbon resins are disclosed. The resins are predominantly an aromatic modified piperylene resin. The resins are useful as tackifiers in hot melt adhesives and hot melt pressure sensitive adhesives.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: August 12, 2003
    Assignee: Eastman Chemical Resins, Inc.
    Inventors: Chretien P. L. C. Donker, Ester E. C.G. Gielens, Gerard A. Verrijzer