Patents by Inventor David Presken

David Presken 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).

  • Ziegler-Natta catalyst, preparation, and use for the polymerization of alkenes
    Publication number: 20080097051
    Abstract: A method for making a solid catalytic component for a Ziegler-Natta catalyst includes contacting a particulate porous support with a solution of a hydrocarbon soluble organomagnesium precursor compound in a hydrocarbon solvent; and reacting said hydrocarbon soluble organo-magnesium precursor compound with an amount of aliphatic or aromatic alcohol, said amount being within an acceptable range of a molar equivalent of aliphatic or aromatic alcohol calculated according to formula (I): Equ Alkanol = 2 · [ ( mmole ? ? ? MgR / g ? ? ? support ) - 2.1 - 0.
    Type: Application
    Filed: December 12, 2007
    Publication date: April 24, 2008
    Inventors: Frank Spaether, David Presken
  • Ziegler-Natta catalyst, preparation, and use for the polymerization of alkenes
    Publication number: 20060052237
    Abstract: A method for making a solid catalytic component for a Ziegler-Natta catalyst includes contacting a particulate porous support with a solution of a hydrocarbon soluble organomagnesium precursor compound in a hydrocarbon solvent; and reacting said hydrocarbon soluble organo-magnesium precursor compound with an amount of aliphatic or aromatic alcohol, said amount being within an acceptable range of a molar equivalent of aliphatic or aromatic alcohol calculated according to formula (I): Equ Alkanol = 2 ? ? · [ ( mmole ? ? ? MgR ? / ? g ? ? ? support ) - 2.1 - 0.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 9, 2006
    Inventors: Frank Spaether, David Presken