Patents by Inventor Knut Dornik

Knut Dornik 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).

  • Mixture of diesters of adipic or phthalic acid with isomers of nonanols
    Patent number: 6437170
    Abstract: The mixture described is a mixture of isomeric nonanol diesters of a dicarboxylic acid, selected from the class consisting of a mixture of diesters of adipic acid in the 1H NMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.0 to 2.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.0 ppm with respect to TMS is from 1.20 to 5.00 and a mixture of diesters of phthalic acid, in the 1H NMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.1 to 3.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.1 ppm with respect to TMS is from 1.00 to 4.00.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: August 20, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Lucien Thil, Boris Breitscheidel, Walter Disteldorf, Edgar Zeller, Marc Walter, Bernd Morsbach, Knut Dornik