Patents by Inventor Jurgen Hartlapp

Jurgen Hartlapp 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).

  • Process for the preparation of a polyolefin, and a catalyst for this process
    Patent number: 4448944
    Abstract: Polyolefins having a broad molecular weight distribution are obtained in a very high yield even using a catalyst based on a reaction product of a magnesium alcoholate with titanium tetrachloride, if the hydrocarbon-insoluble product of the reaction of the magnesium alcoholate with titanium tetrachloride is heated to a fairly high temperature with a chloroalkoxytitanate, in order to split off alkyl chlorides.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 15, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Joachim Berthold, Bernd Diedrich, Rainer Franke, Jurgen Hartlapp, Werner Schafer, Wolfgang Strobel
  • Process for the preparation of a polyolefin, and a catalyst for this process
    Patent number: 4447587
    Abstract: Polyolefins having a broad molecular weight distribution are obtained in a very high yield even using, as the catalyst, a product from the reaction of a magnesium alcoholate with titanium tetrachloride, if the reaction between the magnesium alcoholate and the titanium tetrachloride is carried out at a relatively low temperature and the reaction mixture is then heated to a fairly high temperature in order to split off alkyl chlorides.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 8, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Joachim Berthold, Bernd Diedrich, Rainer Franke, Jurgen Hartlapp, Werner Schafer, Wolfgang Strobel