Patents by Inventor Douglas C. McFaddin

Douglas C. McFaddin 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).

  • Patent number: 8809433
    Abstract: Disclosed is a method for improving the barrier properties of polyethylene films. The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film. The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: August 19, 2014
    Assignee: Equistar Chemicals, LP
    Inventors: Jeffrey S. Borke, Douglas C. McFaddin, Stephen M. Imfeld
  • Publication number: 20130225742
    Abstract: Disclosed is a method for improving the barrier properties of polyethylene films The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent.
    Type: Application
    Filed: April 3, 2013
    Publication date: August 29, 2013
    Applicant: Equistar Chemicals, LP
    Inventors: JEFFREY S. BORKE, Douglas C. McFaddin, Stephen M. Imfeld
  • Patent number: 8436085
    Abstract: Disclosed is a method for improving the barrier properties of polyethylene films. The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film. The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: May 7, 2013
    Assignee: Equistar Chemicals, LP
    Inventors: Jeffrey S. Borke, Douglas C. McFaddin, Stephen M. Imfeld
  • Patent number: 7456241
    Abstract: Microfine powder adhesive blends are provided. The powders are comprised of a polyolefin base resin component and acid or acid derivative functionalized polyolefin component with one or more optional components. The microfine powders are produced from melt blended adhesive products using a dispersion process and have median particle sizes from 5 to 250 micrometers.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: November 25, 2008
    Assignee: Equistar Chemicals, LP
    Inventors: Douglas C. McFaddin, David O. Bostrom
  • Publication number: 20080227900
    Abstract: Disclosed is a method for improving the barrier properties of polyethylene films. The method comprises mixing a substantially linear, high density polyethylene with a nucleating agent and converting the mixture into a film. The film made by the method of the invention has at least a 15% improvement on the water vapor barrier property and/or in the oxygen barrier property compared with the control film made from the same substantially linear, high density polyethylene but does not contain the nucleating agent.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 18, 2008
    Inventors: Jeffrey S. Borke, Douglas C. McFaddin, Stephen M. Imfeld
  • Patent number: 7019073
    Abstract: The present invention discloses a method of dispersing cyclodextrins into a base polymer. The method of the invention comprises reacting grafted microfine polymer powder with a cyclodextrin to form a cyclodextrin-attached grafted polymer, and mixing the cyclodextrin-attached grafted polymer and the base polymer for a sufficient time that the cyclodextrin-attached grafted polymer is dispersed within the base polymer. The present invention also provides several cyclodextrin-inclusion complex products formed by the method of the invention. This products include an antimicrobial polymer blend, a fragrant polymer blend, and a dyed polymer blend.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: March 28, 2006
    Assignee: Equistar Chemicals, L.P.
    Inventors: Bradley P. Etherton, Douglas C. McFaddin
  • Patent number: 6914097
    Abstract: A process for producing acid functionalized polyolefins by hydrolyzing maleic anhydride grafts using a dispersion technique is provided. Acid functionalized polyolefin powders produced by the process as well as adhesive blends formulated therewith are also disclosed.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: July 5, 2005
    Assignee: Equistar Chemicals LP
    Inventors: Daniel R. Ward, Douglas C. McFaddin, Bradley P. Etherton
  • Publication number: 20040249071
    Abstract: Powders of multi-component adhesive blends are provided. The powders are a blend of a polyolefin base resin component and acid or acid derivative functionalized polyolefin component with one or more optional components. The powders are produced by a dispersion process and have median particle sizes from 5 to 250 micrometers.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Inventors: Douglas C. McFaddin, David O. Bostrom
  • Patent number: 6793866
    Abstract: An improved process for producing bonded activated carbon structures utilizing microwave radiation is provided. The structures are produced by exposing a particulate mixture comprised of activated carbon particles and polyolefin resin binder particles in a microwave transparent mold to increase the temperature of the activated carbon particles 3 to 30° C. above the crystalline melting point of the polyolefin resin binder and thereafter compressing the mixture to increase contact between the particles and lowering the temperature of the particulate mixture below the melting point of the polyolefin while maintaining point bond formation conditions. The bonded structures may be separated from the container and used as such or the bonded structure and container in which it is formed may be retained and used as a unit.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: September 21, 2004
    Assignee: Equistar Chemicals, LP
    Inventors: William L. Kelly, Douglas C. McFaddin
  • Publication number: 20040116569
    Abstract: A process for producing acid functionalized polyolefins by hydrolyzing maleic anhydride grafts using a dispersion technique is provided. Acid functionalized polyolefin powders produced by the process as well as adhesive blends formulated therewith are also disclosed.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Inventors: Daniel R. Ward, Douglas C. McFaddin, Bradley P. Etherton
  • Publication number: 20030080473
    Abstract: An improved process for producing bonded activated carbon structures utilizing microwave radiation is provided. The structures are produced by exposing a particulate mixture comprised of activated carbon particles and polyolefin resin binder particles in a microwave transparent mold to increase the temperature of the activated carbon particles 3 to 30° C. above the crystalline melting point of the polyolefin resin binder and thereafter compressing the mixture to increase contact between the particles and lowering the temperature of the particulate mixture below the melting point of the polyolefin while maintaining point bond formation conditions. The bonded structures may be separated from the container and used as such or the bonded structure and container in which it is formed may be retained and used as a unit.
    Type: Application
    Filed: October 23, 2001
    Publication date: May 1, 2003
    Inventors: William L. Kelly, Douglas C. McFaddin