Patents by Inventor Owen C. Lightbody

Owen C. Lightbody 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
    Patent number: 9963561
    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 comprises at least two selected phosphite stabilizers. In some embodiments, the process is suitable for the manufacture of polyethylene film.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 8, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Fraser D. Cole Waldie, Owen C. Lightbody, Tony Tikuisis, P. Scott Chisholm
  • PHENOL FREE STABILIZATION OF POLYETHYLENE
    Publication number: 20170145171
    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 comprises at least two selected phosphite stabilizers. In some embodiments, the process is suitable for the manufacture of polyethylene film.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 25, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Fraser D. Cole Waldie, Owen C. Lightbody, Tony Tikuisis, P. Scott Chisholm
  • Corona Treated Polyethylene Films
    Publication number: 20140373484
    Abstract: A process for improving the sealing characteristics of corona treated polyolefin films through the use of a stabilizer system comprising i) 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione (CAS registry number 040601-76-1) and ii) an organic phosphite or phosphonite.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Owen C Lightbody, Tony Tikuisis, Norman Dorien Joseph Aubee
  • BARRIER PROPERTIES OF HDPE FILM
    Publication number: 20140309351
    Abstract: A composition comprising high density polyethylene (HDPE), calcium phthalate and a metal stearate is provided. Film that is prepared from this composition has excellent barrier properties—especially a low water vapor transmission rate (WVTR)—and is suitable for the preparation of packaging for dry foods such as crackers and cereals.
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Owen C. Lightbody, P. Scott Chisholm, Norman Dorien Joseph Aubee, Tony Tikuisis