Patents by Inventor Keith W. Trapp

Keith W. Trapp 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).

  • Methods of producing polyolefins and films therefrom
    Patent number: 6995235
    Abstract: Films and methods of forming films comprising first combining in a reactor olefins, a catalyst composition and an activator; wherein the activator is present from less than 50 wt % in a diluent by weight of the activator and diluent; followed by isolating a polyolefin having a density of from 0.940 to 0.980 g/cm3; and finally, extruding the polyolefin into a film having a gel count of less than 200 gels/m2.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: February 7, 2006
    Assignee: Univation Technologies, LLC
    Inventors: Fred D. Ehrman, Rainer Kolb, Chi-I Kuo, Porter C. Shannon, Keith W. Trapp