Patents by Inventor Doug Burmaster

Doug Burmaster 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).

  • Metallocene random copolymers with cool temperature impact properties
    Patent number: 8247512
    Abstract: A metallocene random copolymer of propylene and ethylene in which the ductile/brittle transition temperature of a molded article made from the copolymer may be in the range of from about 20° F. (?7° C.) to about 40° F. (4° C.). The haze level of the molded article may be less than about 10 percent for an 80-mil (0.2 cm) thick plaque. The metallocene random copolymer may further include a clarifier.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: August 21, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Owen Hodges, Doug Burmaster, J. Layne Lumus
  • POLYMER COMPOSITIONS FOR REDUCED SHRINKAGE
    Publication number: 20090088531
    Abstract: A polymeric composition comprising a polymer and a nucleation agent, and having isotropic shrinkage of less than about 20% and a differential shrinkage of less than about 20%.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Dang Le, Jerome Thierry-Mieg, Doug Burmaster, Frank Li
  • Polymer compositions for reduced shrinkage
    Patent number: 7445827
    Abstract: A polymeric composition comprising a polymer and a nucleation agent, and having isotropic shrinkage of less than about 20% and a differential shrinkage of less than about 20%.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: November 4, 2008
    Assignee: Fina Technology, Inc.
    Inventors: Dang Le, Jerome Thierry-Mieg, Doug Burmaster, Frank Li
  • Metallocene Random Copolymers With Cool Temperature Impact Properties
    Publication number: 20080221284
    Abstract: A metallocene random copolymer of propylene and ethylene in which the ductile/brittle transition temperature of a molded article made from the copolymer may be in the range of from about 20° F. (?7° C.) to about 40° F. (4° C.). The haze level of the molded article may be less than about 10 percent for an 80-mil (0.2 cm) thick plaque. The metallocene random copolymer may further include a clarifier.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 11, 2008
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Owen Hodges, Doug Burmaster, J. Layne Lumus
  • Impact copolymer with optimized melt flow, stiffness, and low-temperature impact resistance
    Patent number: 7309742
    Abstract: An impact copolymer having a flexural modulus (ASTM D-790) of at least about 1,100 MPa; a melt flow rate (ASTM D-1238) of at least about 15 g/10 min; and a maximum load under Dynatup Impact test (ASTM D-3763) of equal to or greater than about 1,700 N at a temperature of less than or equal to about ?40° C. and articles of manufacture from same.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: December 18, 2007
    Assignee: Fina Technology, Inc.
    Inventors: Robert Poncelet, Jerry Murrey, Doug Burmaster, Marc Mayhall, Owen Hodges
  • Polymer compositions for reduced shrinkage
    Publication number: 20070128388
    Abstract: A polymeric composition comprising a polymer and a nucleation agent, and having isotropic shrinkage of less than about 20% and a differential shrinkage of less than about 20%.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 7, 2007
    Inventors: Dang Le, Jerome Thierry-Mieg, Doug Burmaster, Frank Li
  • Impact copolymer with optimized melt flow, stiffness, and low-temperature impact resistance
    Publication number: 20050107558
    Abstract: An impact copolymer having a flexural modulus (ASTM D-790) of at least about 1,100 MPa; a melt flow rate (ASTM D-1238) of at least about 15 g/10 min; and a maximum load under Dynatup Impact test (ASTM D-3763) of equal to or greater than about 1,700 N at a temperature of less than or equal to about ?40° C. and articles of manufacture from same.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Robert Poncelet, Jerry Murrey, Doug Burmaster, Marc Mayhall, Owen Hodges