Patents by Inventor Manfred Jukius

Manfred Jukius 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).

  • Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio
    Publication number: 20050245767
    Abstract: The invention relates to processes for preparing 3-aminomethyl-3,5,5-trimethylcyclo-hexylamine (isophoronediamine, IPDA) having a high cis/trans isomer ratio. IPDA having a cis/trans isomer ratio in the range from 63/37 to 66/34 can be obtained in any desired cis/trans isomer ratio, irrespective of temperature, by reacting IPDA with H2 and NH3 in the presence of a hydrogenation catalyst. IPDA having a cis/trans isomer ratio of at least 73/27 which is an important starting material for the synthesis of polyurethanes and polyamides can be obtained by combining this isomerization process with distillative processes.
    Type: Application
    Filed: August 6, 2003
    Publication date: November 3, 2005
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Frank Funke, Thomas Hill, Jobst Von Watzdorf, Wolfgang Mattmann, Wolfgang Harder, Erhard Henkes, Gerd Littman, Manfred Jukius