Patents by Inventor Peter S. Kezios

Peter S. Kezios 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).

  • Polyester containers and films with reduced gas permeability
    Patent number: 11186713
    Abstract: Three independent approaches to the reduction of gas molecule permeability through a polyethylene terephthalate (PET) polyester film or container wall by increasing the mechanically or thermally induced crystallinity or the overall crystallinity level of a single or multilayer container, where the three approaches may be employed independently or in combination with one another.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: November 30, 2021
    Assignee: DAK AMERICAS LLC
    Inventors: Rajat Kapoor, Peter S. Kezios, George F. Rollend
  • POLYESTER CONTAINERS AND FILMS WITH REDUCED GAS PERMEABILITY
    Publication number: 20190112471
    Abstract: Three independent approaches to the reduction of gas molecule permeability through a polyethylene terephthalate (PET) polyester film or container wall by increasing the mechanically or thermally induced crystallinity or the overall crystallinity level of a single or multilayer container, where the three approaches may be employed independently or in combination with one another.
    Type: Application
    Filed: April 11, 2017
    Publication date: April 18, 2019
    Applicant: DAK AMERICAS LLC
    Inventors: Rajat KAPOOR, Peter S. KEZIOS, George F. ROLLEND
  • Co-polyester packaging resins prepared without solid-state polymerization, a method for processing the co-polyester resins with reduced viscosity change and containers and other articles prepared by the process
    Patent number: 9656418
    Abstract: A method of processing a polyester composition without changing the intrinsic viscosity of the polyester polymer by more than 0.025 dL/g such as injection molding a PET resin to form a bottle perform and blow molding a container from the bottle preform.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 23, 2017
    Assignee: DAK AMERICAS LLC
    Inventors: Peter S. Kezios, Helen Codd, Kevin Richard Harrison
  • UV barrier formulation for polyesters
    Patent number: 7763265
    Abstract: The invention provides UV-barrier formulations which result in products which effectively resist the transmission of ultraviolet light therethrough. The invention also provides UV-barrier formulations which result in products with improved resistance to ultraviolet light. In particular, the invention provides UV barrier formulations for polyester resins that have improved resistance to ultraviolet radiation, and significantly reduce ultraviolet light transmission in the resulting resin products. The invention also provides products and manufacturing processes based on the above formulations.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: July 27, 2010
    Assignee: Dak Americas, LLC
    Inventors: Karl H. Buchanan, Helen J. Codd, Peter S. Kezios
  • Manufacturing method of co-polyester resins for clear mono-layer containers with improved gas barrier characteristics
    Patent number: 7358324
    Abstract: A process for producing compositions having improved gas barrier properties, and compositions containing a polyester resin and one or more of another thermoplastic resin and a filler, and may be used to form containers that exhibit improved resistance to gas permeation.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: April 15, 2008
    Assignee: Dak Americas LLC
    Inventors: Chi-Chin Chen, Peter S. Kezios, Helen Codd, Karl Buchanan