Patents by Inventor John T. Blagg
John T. Blagg 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: 11634567Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: GrantFiled: June 16, 2022Date of Patent: April 25, 2023Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Publication number: 20220315744Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: ApplicationFiled: June 16, 2022Publication date: October 6, 2022Inventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Patent number: 11427703Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: GrantFiled: March 25, 2019Date of Patent: August 30, 2022Assignee: Chevran Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Patent number: 11360011Abstract: This disclosure provides methods of predicting the steady state small scale critical temperatures (S4 Tc) of polymer resins and pipes therefrom.Type: GrantFiled: September 26, 2018Date of Patent: June 14, 2022Assignee: Chevron Phillips Chemical Company, LPInventors: Elizabeth M. Lanier, Mark J. Lamborn, Brent A. Fiedler, Chung C. Tso, John T. Blagg, Alan E. Miller
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Patent number: 11352471Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: GrantFiled: December 9, 2019Date of Patent: June 7, 2022Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia
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Patent number: 11332601Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: GrantFiled: April 2, 2020Date of Patent: May 17, 2022Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Patent number: 11174378Abstract: Ethylene polymers having a density from 0.908 to 0.925 g/cm3, a melt index from 0.5 to 3 g/10 min, a ratio of Mw/Mn from 2 to 4, a ratio of Mz/Mw from 1.6 to 2.3, a CY-a parameter from 0.45 to 0.6, and an ATREF profile characterized by a single peak at a peak ATREF temperature from 76 to 88° C., and by less than 4.5 wt. % of the polymer eluting above a temperature of 91° C. These ethylene polymers can be used to produce various articles of manufacture, such as blown and cast films with a beneficial combination of high tear resistance and low haze.Type: GrantFiled: April 22, 2021Date of Patent: November 16, 2021Assignee: Chevron Phillips Chemical Company LPInventors: Chung Ching Tso, Errun Ding, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel, Ashish M. Sukhadia, Sarah Eppinger
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Publication number: 20210253835Abstract: Ethylene polymers having a density from 0.908 to 0.925 g/cm3, a melt index from 0.5 to 3 g/10 min, a ratio of Mw/Mn from 2 to 4, a ratio of Mz/Mw from 1.6 to 2.3, a CY-a parameter from 0.45 to 0.6, and an ATREF profile characterized by a single peak at a peak ATREF temperature from 76 to 88° C., and by less than 4.5 wt. % of the polymer eluting above a temperature of 91° C. These ethylene polymers can be used to produce various articles of manufacture, such as blown and cast films with a beneficial combination of high tear resistance and low haze.Type: ApplicationFiled: April 22, 2021Publication date: August 19, 2021Inventors: Chung Ching Tso, Errun Ding, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel, Ashish M. Sukhadia, Sarah Eppinger
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Patent number: 11028258Abstract: Ethylene polymers having a density from 0.908 to 0.925 g/cm3, a melt index from 0.5 to 3 g/10 min, a ratio of Mw/Mn from 2 to 4, a ratio of Mz/Mw from 1.6 to 2.3, a CY-a parameter from 0.45 to 0.6, and an ATREF profile characterized by a single peak at a peak ATREF temperature from 76 to 88° C., and by less than 4.5 wt. % of the polymer eluting above a temperature of 91° C. These ethylene polymers can be used to produce various articles of manufacture, such as blown and cast films with a beneficial combination of high tear resistance and low haze.Type: GrantFiled: August 19, 2019Date of Patent: June 8, 2021Assignee: Chevron Phillips Chemical Company LPInventors: Chung Ching Tso, Errun Ding, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel, Ashish M. Sukhadia, Sarah Eppinger
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Publication number: 20210054178Abstract: Ethylene polymers having a density from 0.908 to 0.925 g/cm3, a melt index from 0.5 to 3 g/10 min, a ratio of Mw/Mn from 2 to 4, a ratio of Mz/Mw from 1.6 to 2.3, a CY-a parameter from 0.45 to 0.6, and an ATREF profile characterized by a single peak at a peak ATREF temperature from 76 to 88° C., and by less than 4.5 wt. % of the polymer eluting above a temperature of 91° C. These ethylene polymers can be used to produce various articles of manufacture, such as blown and cast films with a beneficial combination of high tear resistance and low haze.Type: ApplicationFiled: August 19, 2019Publication date: February 25, 2021Inventors: Chung Ching Tso, Errun Ding, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel, Ashish M. Sukhadia, Sarah Eppinger
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Publication number: 20200308378Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190 ° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: ApplicationFiled: March 25, 2019Publication date: October 1, 2020Inventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Publication number: 20200308380Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.Type: ApplicationFiled: April 2, 2020Publication date: October 1, 2020Inventors: Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
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Publication number: 20200109246Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: ApplicationFiled: December 9, 2019Publication date: April 9, 2020Inventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia
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Patent number: 10544273Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: GrantFiled: July 2, 2019Date of Patent: January 28, 2020Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia
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Publication number: 20190322823Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Inventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia
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Patent number: 10435527Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: GrantFiled: September 26, 2017Date of Patent: October 8, 2019Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia
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Publication number: 20190107474Abstract: This disclosure provides methods of predicting the steady state small scale critical temperatures (S4 Tc) of polymer resins and pipes therefrom.Type: ApplicationFiled: September 26, 2018Publication date: April 11, 2019Inventors: Elizabeth M. Lanier, Mark J. Lamborn, Brent A. Fiedler, Chung C. Tso, John T. Blagg, Alan E. Miller
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Publication number: 20190092912Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190° C. from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.Type: ApplicationFiled: September 26, 2017Publication date: March 28, 2019Inventors: Jeremy M. Praetorius, Chung C. Tso, Qing Yang, Yongwoo Inn, John T. Blagg, Ashish M. Sukhadia