Patents by Inventor Laura Elaine Ellis

Laura Elaine Ellis 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).

  • Phenol free stabilization of polyethylene film
    Patent number: 7361703
    Abstract: This invention provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. The stabilizer package of this invention is “phenol free” and must contain at least one aryl monophosphite and at least one diphosphite. The process of this invention is especially suitable for the manufacture of polyethylene film.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: April 22, 2008
    Assignee: Nova Chemical (International) S.A.
    Inventors: Tony Tikuisis, Norman Dorien Joseph Aubee, Denny Paul Sauvageau, Laura Elaine Ellis, Ian Robert Gibbons, P. Scott Chisholm