Patents by Inventor Danielle Childress
Danielle Childress 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: 8859703Abstract: Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW·h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW·h/ton, and forming an article.Type: GrantFiled: December 28, 2011Date of Patent: October 14, 2014Assignee: Fina Technology, Inc.Inventors: Tim Coffy, Steven Gray, David Knoeppel, Cyril Chevillard, David Rauscher, Carlos Corleto, Gerhard Guenther, Brian B. Cole, Stan Biesert, Vincent Barre, Ruby L. Curtis, Son Nguyen, Danielle Childress
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Publication number: 20120091621Abstract: Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 glee to 0.960 glee, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 glee to 0.960 Wee and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SET) is less than 300 kW.h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW.h/ton, and forming an article.Type: ApplicationFiled: December 28, 2011Publication date: April 19, 2012Applicant: FINA TECHNOLOGY, INC.Inventors: Tim Coffy, Steven Gray, David Knoeppel, Cyril Chevillard, David Rauscher, Carlos Corleto, Gerhard Guenther, Brian B. Cole, Stan Biesert, Vincent Barre, Ruby L. Curtis, Son Nguyen, Danielle Childress
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Patent number: 8110644Abstract: Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW·h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW·h/ton, and forming an article.Type: GrantFiled: May 11, 2010Date of Patent: February 7, 2012Assignee: Fina Technology, Inc.Inventors: Tim Coffy, Steven Gray, David Knoeppel, Cyril Chevillard, David Rauscher, Carlos Corleto, Gerhard Guenther, Brian Cole, Stan Biesert, Vincent Barre, Ruby Curtis, Son Nguyen, Danielle Childress
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Publication number: 20100267909Abstract: Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW·h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW·h/ton, and forming an article.Type: ApplicationFiled: May 11, 2010Publication date: October 21, 2010Applicant: Fina Technology, Inc.Inventors: Tim Coffy, Steven Gray, David Knoeppel, Cyril Chevillard, David Rauscher, Carlos Corleto, Gerhard Guenther, Brian B. Cole, Stan Biesert, Vincent Barre, Ruby L. Curtis, Son Nguyen, Danielle Childress
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Publication number: 20080051538Abstract: Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW.h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW.h/ton, and forming an article.Type: ApplicationFiled: July 6, 2007Publication date: February 28, 2008Applicant: FINA TECHNOLOGY, INC.Inventors: TIM COFFY, Steven Gray, David Knoeppel, Cyril Chevillard, David Rauscher, Carlos Corleto, Gerhard Guenther, Brian Cole, Stan Beisert, Vincent Barre, Ruby Curtis, Son Nguyen, Danielle Childress