Patents by Inventor Werner A. Thuring

Werner A. Thuring 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 SYNTHESIS OF POLYALPHAOLEFIN AND REMOVAL OF RESIDUAL CATALYST COMPONENTS
    Publication number: 20100069687
    Abstract: A process for reducing the level of residual catalyst comprising one or more 1-halo-2-methylpropanes and a Group 13 metal catalyst from a crude polyolefins product, the process comprising contacting the crude organic product with a solid adsorbent in an adsorbent system. Also provided is a co-catalyst system for polymerizing alpha olefins.
    Type: Application
    Filed: October 12, 2009
    Publication date: March 18, 2010
    Applicant: Chemtura Corporation
    Inventors: Vilen KOSOVER, Jesus R. FABIAN, Daniel C. KNOWLES, Mitchel COHN, Werner A. THURING
  • Process for removal of catalyst residues from poly-?-olefins
    Patent number: 7473815
    Abstract: A method is disclosed for reducing levels of residual halogen and Group IIIb metals in a crude poly(?-olefin) polymerized in the presence of a catalyst comprising the halogen and Group IIIb metals, wherein the method comprises: A) washing the crude poly(?-olefin) with water; B) separating the aqueous and organic phases; C) then adding an adsorbent selected from the group consisting of magnesium silicates, calcium silicates, aluminum silicates, aluminum oxides, and clays to the organic phase to form a slurry; D) heating the slurry under reduced pressure at a temperature of at least about 180° C. for at least about thirty minutes; and then E) separating the adsorbent from the slurry.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 6, 2009
    Assignee: Crompton Corporation
    Inventors: Timothy L. Lambert, Werner A. Thuring
  • Process for removal of catalyst residues from poly-alpha-olefins
    Publication number: 20050101761
    Abstract: A method is disclosed for reducing levels of residual halogen and Group IIIb metals in a crude poly(?-olefin) polymerized in the presence of a catalyst comprising the halogen and Group IIIb metals, wherein the method comprises: A) washing the crude poly(?-olefin) with water; B) separating the aqueous and organic phases; C) then adding an adsorbent selected from the group consisting of magnesium silicates, calcium silicates, aluminum silicates, aluminum oxides, and clays to the organic phase to form a slurry; D) heating the slurry under reduced pressure at a temperature of at least about 180° C. for at least about thirty minutes; and then E) separating the adsorbent from the slurry.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: Timothy Lambert, Werner Thuring