Patents by Inventor Gerd A. Allermann

Gerd A. Allermann 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).

  • Oxygen tailoring of polyethylene
    Patent number: 9284415
    Abstract: Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index ?5.0 and an MWD ?5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O2). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: March 15, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gerd A. Allermann, Danny Van Hoyweghen, Steven A. Best, Anthony Poloso, Nicolas M. De Ketelaere
  • Oxygen Tailoring of Polyethylene
    Publication number: 20150038624
    Abstract: Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index ?5.0 and an MWD ?5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O2). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed.
    Type: Application
    Filed: December 12, 2012
    Publication date: February 5, 2015
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Gerd A. Allermann, Danny Van Hoyweghen, Steven A. Best, Anthony Poloso, Nicolas M. De Ketelaere
  • Partially crosslinked ethylene vinyl acetate copolymers with low melt index values and increased tensile strength
    Patent number: 7939607
    Abstract: Ethylene vinyl acetate compositions that have been partially crosslinked using organic peroxides are disclosed, as well as methods for their production. The crosslinked compositions have low melt index values and increased tensile strength, leading to flexibility and heat resistant properties.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: May 10, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gerd A. Allermann, Hitesh A. Fruitwala
  • Partially crosslinked ethylene vinyl acetate copolymers with low melt index values and increased tensile strength
    Publication number: 20080176994
    Abstract: Ethylene vinyl acetate compositions that have been partially crosslinked using organic peroxides are disclosed, as well as methods for their production. The crosslinked compositions have low melt index values and increased tensile strength, leading to flexibility and heat resistant properties.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Gerd A. Allermann, Hitesh A. Fruitwala