Patents by Inventor Kai Carsten Hultzsch

Kai Carsten Hultzsch 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 (CO)polymerizing polar and non-polar monomers
    Patent number: 6599996
    Abstract: In a process for the transition-metal-catalyzed preparation of polymers having a syndiotactic or predominantly syndiotactic structure from vinylaromatic monomers and a process for preparing block copolymers from vinylaromatic monomers and olefinically unsaturated polar monomers, use is made of transition metal compounds of the formula (I) where the substituents and indices have the following meanings: M is scandium, yttrium, lanthanum or a lanthanide metal, R′″ is &mgr;-C3-C20-alkyl, L is a low molecular weight organic compound having Lewis basicity, where n=1 or 0 and at least one n in (I) is 0, m is 1 or 2.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 29, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Geprägs, Joachim Queisser, Jun Okuda, Kai Carsten Hultzsch, Klaus Beckerle