Patents by Inventor M. Stephen Edmondson

M. Stephen Edmondson 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).

  • Ethylene/&agr;-olefin polymer blends comprising components with differing ethylene contents
    Patent number: 6455638
    Abstract: An ethylene/&agr;-olefin polymer blend is described comprising first and second ethylene/&agr;-olefin polymer components in which the ethylene content of the first component is at least 10 weight percent different than the ethylene content of the second component. These blends exhibit an improved combination of low temperature, pellet flow, compression set, melt strength and/or shape retention properties as compared to either component, or an ethylene/&agr;-olefin polymer blend of similar composition but in which the ethylene content of each component is substantially the same.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: September 24, 2002
    Assignee: DuPont Dow Elastomers L.L.C.
    Inventors: Michael K. Laughner, Deepak R. Parikh, Christian Daniel, M. Stephen Edmondson
  • Ethylene/alpha-olefin polymer blends comprising components with differing ethylene contents
    Publication number: 20020016415
    Abstract: An ethylene/&agr;-olefin polymer blend is described comprising first and second ethylene/&agr;-olefin polymer components in which the ethylene content of the first component is at least 10 weight percent different than the ethylene content of the second component. These blends exhibit an improved combination of low temperature, pellet flow, compression set, melt strength and/or shape retention properties as compared to either component, or an ethylene/&agr;-olefin polymer blend of similar composition but in which the ethylene content of each component is substantially the same.
    Type: Application
    Filed: May 4, 2001
    Publication date: February 7, 2002
    Inventors: Michael K. Laughner, Deepak R. Parikh, Christian Daniel, M. Stephen Edmondson