Patents by Inventor Eric John Markel

Eric John Markel 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).

  • Propylene polymers incorporating macromers
    Patent number: 6342574
    Abstract: A polyolefin composition is provided which consists essentially of isotactic polypropylene and, optionally, one or more comonomers, wherein the total comonomer content of the polyolefin composition is from 0 to 20 mole percent, and further, wherein the weight average branching index g′ for the lower molecular weight region of the polyolefin composition is less than 0.93. Additionally, a process is provided for producing a polyolefin composition comprising: a) contacting, in solution, at a temperature from about 90° C. to about 120° C.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: January 29, 2002
    Assignee: ExxonMobil Chemical Patents INC
    Inventors: Weiqing Weng, Armenag Hagop Dekmezian, Eric John Markel, David L. Peters