Patents Assigned to Dow Global Technologies Inv.
  • Vinylaromatic polymers having high melt flow
    Patent number: 6867276
    Abstract: A process for preparing syndiotactic polymers of vinylaromatic monomers having improved melt flowability comprising contacting one or more vinylaromatic monomers with a catalyst system comprising a titanium coordination complex capable of preparing syndiotactic vinylaromatic polymers under addition polymerization conditions in the presence of hydrogen gas at a hydrogen partial pressure from 0.1 to less than 10 kPa.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: March 15, 2005
    Assignee: Dow Global Technologies Inv.
    Inventor: Jürgen Schellenberg