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).
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Patent number: 8524343Abstract: 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: GrantFiled: August 16, 2011Date of Patent: September 3, 2013Assignee: DAK Americas Mississippi Inc.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Patent number: 8338505Abstract: 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: GrantFiled: May 13, 2008Date of Patent: December 25, 2012Assignee: DAK Americas Mississippi Inc.Inventors: Sharon Sue Griffith, Tony Clifford Moore, Robert Joseph Schiavone
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Patent number: 8304510Abstract: 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: GrantFiled: December 27, 2010Date of Patent: November 6, 2012Assignee: Wellman Inc.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20120148771Abstract: 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: ApplicationFiled: August 16, 2011Publication date: June 14, 2012Applicant: WELLMAN, INC.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20110212282Abstract: 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: ApplicationFiled: December 27, 2010Publication date: September 1, 2011Applicant: WELLMAN, INC.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Patent number: 7858731Abstract: 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: GrantFiled: May 29, 2008Date of Patent: December 28, 2010Assignee: Wellman, Inc.Inventors: Walter Lee Edwards, Carl Steven Nichols, Robert Joseph Schiavone, Sharon Sue Griffith, Tony Clifford Moore
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Publication number: 20100221472Abstract: 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: ApplicationFiled: November 20, 2009Publication date: September 2, 2010Applicant: WELLMAN, INC.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20090176046Abstract: 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: ApplicationFiled: December 15, 2008Publication date: July 9, 2009Applicant: WELLMAN, INC.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20090093600Abstract: The present invention relates to methods for forming polyester resins in one or more falling film reactors.Type: ApplicationFiled: October 27, 2008Publication date: April 9, 2009Applicant: WELLMAN, INC.Inventors: Tony Clifford Moore, Sharon Sue Griffith, David Eugene Thompson, Neil Richard Kluesener, James Reed Honeycutt
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Publication number: 20080274317Abstract: 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: ApplicationFiled: May 21, 2008Publication date: November 6, 2008Applicant: WELLMAN, INC.Inventors: David Eugene Thompson, Carl Steven Nichols, Tony Clifford Moore, Sharon Sue Griffith, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20080274316Abstract: 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: ApplicationFiled: May 13, 2008Publication date: November 6, 2008Applicant: WELLMAN, INC.Inventors: Sharon Sue Griffith, Tony Clifford Moore, Robert Joseph Schiavone
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Publication number: 20080226856Abstract: 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: ApplicationFiled: May 29, 2008Publication date: September 18, 2008Applicant: Welllman, Inc.Inventors: Walter Lee Edwards, Robert Joseph Schiavone, Sharon Sue Griffith, Carl Steven Nichols, Tony Clifford Moore
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Patent number: 7129317Abstract: 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: GrantFiled: May 21, 2004Date of Patent: October 31, 2006Assignee: Wellman, Inc.Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
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Patent number: 7094863Abstract: 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: GrantFiled: November 24, 2004Date of Patent: August 22, 2006Assignee: Wellman, Inc.Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20040236066Abstract: 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: ApplicationFiled: May 21, 2004Publication date: November 25, 2004Inventors: Tony Clifford Moore, David Eugene Thompson, Sharon Sue Griffith, Carl S. Nichols, Billy Mack Humelsine, Robert Joseph Schiavone
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Publication number: 20020033560Abstract: 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: ApplicationFiled: October 9, 2001Publication date: March 21, 2002Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith
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Publication number: 20020027314Abstract: 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: ApplicationFiled: October 9, 2001Publication date: March 7, 2002Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith
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Publication number: 20020011694Abstract: 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: ApplicationFiled: October 9, 2001Publication date: January 31, 2002Inventors: Carl S. Nichols, Tony Clifford Moore, Sharon Sue Griffith