Patents by Inventor Sharon Sue Griffith

Sharon Sue Griffith 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: 8524343
    Abstract: The present invention relates to titanium-catalyzed polyethylene terephthalate resins that are capable of being formed into articles (e.g., carbonated soft drink and water bottle preforms) at reduced injection-molding cycle times. In particular, the titanium-catalyzed polyethylene terephthalate resins of the present invention can be formed into carbonated soft drink bottle preforms at reduced injection-molding cycle times to yield high-clarity, carbonated soft drink bottles that possess satisfactory resistance to stress cracking and thermal creep.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: September 3, 2013
    Assignee: DAK Americas Mississippi Inc.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Patent number: 8338505
    Abstract: The invention embraces polymer resins, such as polyethylene terephthalate resin, that includes surface-compatibilized alumina. The invention also embraces methods of making polyethylene terephthalate resins that are capable of being formed into low-haze, high-clarity articles possessing reduced coefficient of friction.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: December 25, 2012
    Assignee: DAK Americas Mississippi Inc.
    Inventors: Sharon Sue Griffith, Tony Clifford Moore, Robert Joseph Schiavone
  • Patent number: 8304510
    Abstract: The present invention relates to slow-crystallizing, titanium-catalyzed polyethylene terephthalate resins that are useful for making high-strength, high-clarity bottles that possess improved resistance to stress cracking and thermal creep. The polyethylene terephthalate resins possess improved reheating profiles and are especially useful for making polyester articles that have exceptional clarity, dimensional stability, and thermal stability.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 6, 2012
    Assignee: Wellman Inc.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20120148771
    Abstract: The present invention relates to titanium-catalyzed polyethylene terephthalate resins that are capable of being formed into articles (e.g., carbonated soft drink and water bottle preforms) at reduced injection-molding cycle times. In particular, the titanium-catalyzed polyethylene terephthalate resins of the present invention can be formed into carbonated soft drink bottle preforms at reduced injection-molding cycle times to yield high-clarity, carbonated soft drink bottles that possess satisfactory resistance to stress cracking and thermal creep.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 14, 2012
    Applicant: WELLMAN, INC.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20110212282
    Abstract: The present invention relates to slow-crystallizing, titanium-catalyzed polyethylene terephthalate resins that are useful for making high-strength, high-clarity bottles that possess improved resistance to stress cracking and thermal creep. The polyethylene terephthalate resins possess improved reheating profiles and are especially useful for making polyester articles that have exceptional clarity, dimensional stability, and thermal stability.
    Type: Application
    Filed: December 27, 2010
    Publication date: September 1, 2011
    Applicant: WELLMAN, INC.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Patent number: 7858731
    Abstract: The invention embraces polyester resins and containers that include surface-modified talc. The invention also embraces a method for the late introduction of surface-modified talc via a reactive carrier to achieve a polyester resin that is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 28, 2010
    Assignee: Wellman, Inc.
    Inventors: Walter Lee Edwards, Carl Steven Nichols, Robert Joseph Schiavone, Sharon Sue Griffith, Tony Clifford Moore
  • Publication number: 20100221472
    Abstract: The present invention relates to slow-crystallizing, titanium-catalyzed polyethylene terephthalate resins that are useful for making high-strength, high-clarity bottles that possess improved resistance to stress cracking and thermal creep. The polyethylene terephthalate resins possess improved reheating profiles and are especially useful for making polyester articles that have exceptional clarity, dimensional stability, and thermal stability.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 2, 2010
    Applicant: WELLMAN, INC.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20090176046
    Abstract: The present invention relates to slow-crystallizing, titanium-catalyzed polyethylene terephthalate resins that are useful for making high-strength, high-clarity bottles that possess improved resistance to stress cracking and thermal creep. The polyethylene terephthalate resins possess improved reheating profiles and are especially useful for making polyester articles that have exceptional clarity, dimensional stability, and thermal stability.
    Type: Application
    Filed: December 15, 2008
    Publication date: July 9, 2009
    Applicant: WELLMAN, INC.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20090093600
    Abstract: The present invention relates to methods for forming polyester resins in one or more falling film reactors.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 9, 2009
    Applicant: WELLMAN, INC.
    Inventors: Tony Clifford Moore, Sharon Sue Griffith, David Eugene Thompson, Neil Richard Kluesener, James Reed Honeycutt
  • Publication number: 20080274317
    Abstract: The present invention relates to titanium-catalyzed polyethylene terephthalate resins that are capable of being formed into articles (e.g., carbonated soft drink and water bottle preforms) at reduced injection-molding cycle times. In particular, the titanium-catalyzed polyethylene terephthalate resins of the present invention can be formed into carbonated soft drink bottle preforms at reduced injection-molding cycle times to yield high-clarity, carbonated soft drink bottles that possess satisfactory resistance to stress cracking and thermal creep.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 6, 2008
    Applicant: WELLMAN, INC.
    Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20080274316
    Abstract: The invention embraces polymer resins, such as polyethylene terephthalate resin, that includes surface-compatibilized alumina. The invention also embraces methods of making polyethylene terephthalate resins that are capable of being formed into low-haze, high-clarity articles possessing reduced coefficient of friction.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 6, 2008
    Applicant: WELLMAN, INC.
    Inventors: Sharon Sue Griffith, Tony Clifford Moore, Robert Joseph Schiavone
  • Publication number: 20080226856
    Abstract: The invention embraces polyester resins and containers that include surface-modified talc. The invention also embraces a method for the late introduction of surface-modified talc via a reactive carrier to achieve a polyester resin that is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.
    Type: Application
    Filed: May 29, 2008
    Publication date: September 18, 2008
    Applicant: Welllman, Inc.
    Inventors: Walter Lee Edwards, Robert Joseph Schiavone, Sharon Sue Griffith, Carl Steven Nichols, Tony Clifford Moore
  • Patent number: 7129317
    Abstract: The present invention relates to slow-crystallizing polyethylene terephthalate resins that possess a significantly higher heating crystallization exotherm peak temperature (TCH) as compared with those of conventional antimony-catalyzed polyethylene terephthalate resins. The polyethylene terephthalate resins of the present invention are especially useful for making hot-fill bottles having exceptional clarity.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 31, 2006
    Assignee: Wellman, Inc.
    Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
  • Patent number: 7094863
    Abstract: The present invention relates to slow-crystallizing polyethylene terephthalate resins that possess a significantly higher heating crystallization exotherm peak temperature (TCH) as compared with those of conventional antimony-catalyzed polyethylene terephthalate resins. The polyethylene terephthalate preforms of the present invention, which possess improved reheating profiles, are especially useful for making polyester bottles that have exceptional clarity and that retain acceptable dimensional stability upon being hot-filled with product at temperatures between about 195° F. and 205° F.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: August 22, 2006
    Assignee: Wellman, Inc.
    Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20040236066
    Abstract: The present invention relates to slow-crystallizing polyethylene terephthalate resins that possess a significantly higher heating crystallization exotherm peak temperature (TCH) as compared with those of conventional antimony-catalyzed polyethylene terephthalate resins. The polyethylene terephthalate resins of the present invention are especially useful for making hot-fill bottles having exceptional clarity.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 25, 2004
    Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
  • Publication number: 20020033560
    Abstract: The invention relates to a method for using spinel pigments to increase the infrared heat-up rates of thermoplastic resins and specifically polyester bottle resins. In particular, the method comprises adding spinel pigments to polymerized resins to increase the reheat rates of the resulting polyester pre-forms. When uniformly distributed, these spinel pigments absorb applied energy and thereupon transfer the energy to the polyester.
    Type: Application
    Filed: October 9, 2001
    Publication date: March 21, 2002
    Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith
  • Publication number: 20020027314
    Abstract: The invention relates to a method for using spinel pigments to increase the infrared heat-up rates of thermoplastic resins and specifically polyester bottle resins. In particular, the method comprises adding spinel pigments to polymerized resins to increase the reheat rates of the resulting polyester pre-forms. When uniformly distributed, these spinel pigments absorb applied energy and thereupon transfer the energy to the polyester.
    Type: Application
    Filed: October 9, 2001
    Publication date: March 7, 2002
    Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith
  • Publication number: 20020011694
    Abstract: The invention relates to a method for using spinel pigments to increase the infrared heat-up rates of thermoplastic resins and specifically polyester bottle resins. In particular, the method comprises adding spinel pigments to polymerized resins to increase the reheat rates of the resulting polyester pre-forms. When uniformly distributed, these spinel pigments absorb applied energy and thereupon transfer the energy to the polyester.
    Type: Application
    Filed: October 9, 2001
    Publication date: January 31, 2002
    Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith