Patents by Inventor Alfred E. Brown, JR.
Alfred E. Brown, JR. 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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Publication number: 20240052073Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.Type: ApplicationFiled: October 16, 2023Publication date: February 15, 2024Inventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, JR., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
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Patent number: 11866529Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.Type: GrantFiled: December 6, 2022Date of Patent: January 9, 2024Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, Jr., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
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Patent number: 11859024Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ?E/3? at an extensional rate of 0.1 sec?1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture.Type: GrantFiled: January 10, 2022Date of Patent: January 2, 2024Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Alfred E. Brown, Jr., Yongwoo Inn, Youlu Yu, Qing Yang, Ashish M. Sukhadia
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Publication number: 20230124846Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3. a ratio of HLMI/MI from 185 to 550. an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec-1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec-1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.Type: ApplicationFiled: December 6, 2022Publication date: April 20, 2023Inventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, JR., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
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Patent number: 11578156Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.Type: GrantFiled: October 20, 2020Date of Patent: February 14, 2023Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, Jr., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
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Publication number: 20220127395Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ?E/3? at an extensional rate of 0.1 sec?1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture.Type: ApplicationFiled: January 10, 2022Publication date: April 28, 2022Inventors: Jeremy M. Praetorius, Alfred E. Brown, Jr., Yongwoo Inn, Youlu Yu, Qing Yang, Ashish M. Sukhadia
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Publication number: 20220119562Abstract: Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan ? at 0.1 sec?1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec?1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.Type: ApplicationFiled: October 20, 2020Publication date: April 21, 2022Inventors: Jeremy M. Praetorius, Yongwoo Inn, Alfred E. Brown, JR., Brandy Rutledge-Ryal, Carlos A. Cruz, Jay M. Chaffin
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Patent number: 11267919Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ?E/3? at an extensional rate of 0.1 sec?1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture.Type: GrantFiled: June 11, 2020Date of Patent: March 8, 2022Assignee: Chevron Phillips Chemical Company LPInventors: Jeremy M. Praetorius, Alfred E. Brown, Jr., Yongwoo Inn, Youlu Yu, Qing Yang, Ashish M. Sukhadia
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Publication number: 20210388130Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ?E/3? at an extensional rate of 0.1 sec?1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture.Type: ApplicationFiled: June 11, 2020Publication date: December 16, 2021Inventors: Jeremy M. Praetorius, Alfred E. Brown, JR., Yongwoo Inn, Youlu Yu, Qing Yang, Ashish M. Sukhadia
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Patent number: 10065367Abstract: Disclosed embodiments include the formation of an article of manufacture by a process in which vibrations are generated in a bulk material disposed within a build chamber. The vibrations are focused within a section of the base material, and the focusing is controlled to cause the section of the base material to undergo a physical transformation to form at least a portion of the article of manufacture.Type: GrantFiled: March 20, 2015Date of Patent: September 4, 2018Assignee: Chevron Phillips Chemical Company LPInventor: Alfred E. Brown, Jr.
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Patent number: 10040239Abstract: Disclosed embodiments include the formation of a manufacturing part by a process in which three-dimensional patterns of excitation are produced in a bulk material, and the three-dimensional patterns intersect to cause interference. The interference is used to perform physical or chemical conversion of the bulk material into an article of manufacture having a geometry corresponding to a three-dimensional projection produced from the intersection of the three-dimensional patterns.Type: GrantFiled: March 20, 2015Date of Patent: August 7, 2018Assignee: Chevron Phillips Chemical Company LPInventor: Alfred E. Brown, Jr.
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Patent number: 9475898Abstract: Disclosed herein are ethylene-based polymers having a higher molecular weight component and a lower molecular weight component, and characterized by a density greater than 0.945 g/cm3, a melt index less than 1.5 g/10 min, and a ratio of high load melt index to melt index ranging from 40 to 175. These polymers have the processability of chromium-based resins, but with improved stiffness and stress crack resistance, and can be used in blow molding and other end-use applications.Type: GrantFiled: September 21, 2015Date of Patent: October 25, 2016Assignee: Chevron Phillips Chemical Company LPInventors: Vivek Rohatgi, Jeffrey F. Greco, Yongwoo Inn, Qing Yang, Alfred E. Brown, Jr.
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Publication number: 20160271870Abstract: Disclosed embodiments include the formation of an article of manufacture by a process in which vibrations are generated in a bulk material disposed within a build chamber. The vibrations are focused within a section of the base material, and the focusing is controlled to cause the section of the base material to undergo a physical transformation to form at least a portion of the article of manufacture.Type: ApplicationFiled: March 20, 2015Publication date: September 22, 2016Inventor: Alfred E. Brown, JR.
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Publication number: 20160271875Abstract: Disclosed embodiments include the formation of a manufacturing part by a process in which three-dimensional patterns of excitation are produced in a bulk material, and the three-dimensional patterns intersect to cause interference. The interference is used to perform physical or chemical conversion of the bulk material into an article of manufacture having a geometry corresponding to a three-dimensional projection produced from the intersection of the three-dimensional patterns.Type: ApplicationFiled: March 20, 2015Publication date: September 22, 2016Inventor: Alfred E. Brown, JR.
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Publication number: 20160053035Abstract: Disclosed herein are ethylene-based polymers having a higher molecular weight component and a lower molecular weight component, and characterized by a density greater than 0.945 g/cm3, a melt index less than 1.5 g/10 min, and a ratio of high load melt index to melt index ranging from 40 to 175. These polymers have the processability of chromium-based resins, but with improved stiffness and stress crack resistance, and can be used in blow molding and other end-use applications.Type: ApplicationFiled: September 21, 2015Publication date: February 25, 2016Inventors: Vivek Rohatgi, Jeffrey F. Greco, Yongwoo Inn, Qing Yang, Alfred E. Brown, JR.
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Patent number: 9169337Abstract: Disclosed herein are ethylene-based polymers having a higher molecular weight component and a lower molecular weight component, and characterized by a density greater than 0.945 g/cm3, a melt index less than 1.5 g/10 min, and a ratio of high load melt index to melt index ranging from 40 to 175. These polymers have the processability of chromium-based resins, but with improved stiffness and stress crack resistance, and can be used in blow molding and other end-use applications.Type: GrantFiled: March 12, 2014Date of Patent: October 27, 2015Assignee: Chevron Phillips Chemical Company LPInventors: Vivek Rohatgi, Jeffrey F. Greco, Yongwoo Inn, Qing Yang, Alfred E. Brown, Jr.
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Publication number: 20150259444Abstract: Disclosed herein are ethylene-based polymers having a higher molecular weight component and a lower molecular weight component, and characterized by a density greater than 0.945 g/cm3, a melt index less than 1.5 g/10 min, and a ratio of high load melt index to melt index ranging from 40 to 175. These polymers have the processability of chromium-based resins, but with improved stiffness and stress crack resistance, and can be used in blow molding and other end-use applications.Type: ApplicationFiled: March 12, 2014Publication date: September 17, 2015Applicant: Chevron Phillips Chemical Company LPInventors: Vivek Rohatgi, Jeffrey F. Greco, Yongwoo Inn, Qing Yang, Alfred E. Brown, JR.