Patents by Inventor Mark G. Goode
Mark G. Goode 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: 20230250204Abstract: Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C5HaR1b)(C5HcR2d)HfX2. The second catalyst compound comprises the following formula: wherein each R3 or R4 is independently H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, wherein each R3 or R4 may be the same or different, and each X is independently a leaving group selected from a labile hydrocarbyl, a substituted hydrocarbyl, a heteroatom group, or a divalent radical that links to an R3 group.Type: ApplicationFiled: April 14, 2023Publication date: August 10, 2023Applicant: Univation Technologies, LLCInventors: Sun-Chueh Kao, Francis C. Rix, Ching-Tai Lue, Mark G. Goode, Dongming Li
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Patent number: 11655316Abstract: Embodiments of the present disclosure are directed towards method for modifying a polymer flow index. As an example, a method for modifying a polymer flow index can include providing monomers to a polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of a flow index modifier to the polymerization reactor, wherein the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof.Type: GrantFiled: December 16, 2020Date of Patent: May 23, 2023Assignee: Univation Technologies, LLCInventors: Charles D. Lester, Mark G. Goode, Timothy R. Lynn, Kevin J. Cann, John H. Moorhouse, William Albert Matthews, Kefu Sun, Francois Alexandre
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Patent number: 11459413Abstract: Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I21/I2) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor.Type: GrantFiled: September 26, 2017Date of Patent: October 4, 2022Assignee: Univation Technologies, LLCInventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
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Patent number: 11421054Abstract: The present disclosure provides for a system and method for producing a polyethylene polymer (PE) that includes measuring a melt flow index (MFI) of the PE, comparing the measured value of the MFI to a predetermined desired range for the MFI, changing a catalyst feed rate to the polymerization reactor based on the compared values of the MFI, where changes in the catalyst feed rate preemptively compensate for subsequent changes in an oxygen flow rate to the polymerization reactor that maintain a predetermined residence time and bring the MFI of the PE into the predetermined desired range for the MFI; and changing the oxygen flow rate to the polymerization reactor thereby maintaining both the predetermined residence time and bringing the MFI of the PE into the predetermined desired range for the MFI. The measuring and comparing steps are repeated to ensure the measured value of the MFI is within the predetermined desired range of the MFI at the predetermined residence time.Type: GrantFiled: October 23, 2020Date of Patent: August 23, 2022Assignee: Univation Technologies, LLCInventors: Samuel Bernal, Mark G. Goode, Francois Alexandre, William A. Matthews
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Patent number: 11299568Abstract: A system and method for charging a chromium-based catalyst to a mix vessel; introducing a reducing agent through an entrance arrangement into the mix vessel, and agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.Type: GrantFiled: November 10, 2020Date of Patent: April 12, 2022Assignee: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Kevin R. Gross
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Patent number: 11267918Abstract: Disclosed herein are methods of controlling polymer properties in polymerization processes that use a chromium-based catalyst. An embodiment discloses a method of producing a polyolefin comprising: contacting a reaction mixture and a reduced chromium oxide catalyst in a gas-phase reactor to produce the polyolefin, wherein the reaction mixture comprises a monomer and a co-monomer; and changing a reaction temperature in the gas-phase reactor by about 1° C. or more whereby a gas molar ratio of the co-monomer to the monomer is changed by about 2% or more and a co-monomer content of the polyolefin at substantially constant density is changed by about 2% or more. Additional methods and compositions are also provided.Type: GrantFiled: January 7, 2019Date of Patent: March 8, 2022Assignee: Univation Technologies, LLCInventors: Mark G. Goode, Francois Alexandre, Kevin J. Cann, Barbara J. Kopp, William A. Matthews, John H. Moorhouse, Cliff R. Mure
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Patent number: 11180577Abstract: Embodiments of the present disclosure are directed towards methods for rating polymerization processes based upon a first cracking index value and a second cracking index value.Type: GrantFiled: December 6, 2017Date of Patent: November 23, 2021Assignee: Univation Technologies, LLCInventors: Ping Cai, Francois Alexandre, Mark G. Goode
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Patent number: 11161924Abstract: An ethylene/alpha-olefin copolymer that can be synthesized in a fluidized-bed, gas phase polymerization reactor and made into a blown film. The ethylene/alpha-olefin copolymer is characterized by a bubble stability-effective combination of properties comprising density, melt flow ratio (“I21/I5”), and melt storage modulus G? (G?=3,000 Pa). The synthesis in the FB-GPP reactor is characterized by a property-imparting-effective combination of operating conditions comprising reactor bed temperature and H2/C2 gas molar ratio. An embodiment of the blown film consisting of the ethylene/alpha-olefin copolymer is characterized by enhanced bubble stability. A method of making the ethylene/alpha-olefin copolymer. A film comprising the ethylene/alpha-olefin copolymer. A method of making the film. A manufactured article comprising the film.Type: GrantFiled: October 9, 2018Date of Patent: November 2, 2021Assignee: Univation Technologies, LLCInventors: Bo Liu, Mark G. Goode, Ayush A. Bafna, Daniel C. Garska, François Alexandre, Timothy R. Lynn
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Patent number: 11161923Abstract: A method of selectively transitioning a polymerization process making an ethylene/alpha-olefin copolymer in such a way that melt elasticity of the copolymer is substantially changed without changing comonomer and without substantially changing density of the copolymer. A method of compensating a reactor temperature-induced change in melt elasticity with an inverse change in H2/C2 gas molar ratio. Also, use of process control variable(s) to selectively change the melt elasticity.Type: GrantFiled: October 9, 2018Date of Patent: November 2, 2021Assignee: Univation Technologies, LLCInventors: Bo Liu, Mark G. Goode
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Publication number: 20210284768Abstract: Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I21/I2) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor.Type: ApplicationFiled: September 26, 2017Publication date: September 16, 2021Applicant: Univation Technologies, LLCInventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
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Patent number: 11014998Abstract: The present disclosure provides for a system and method for producing a polyethylene polymer (PE) that includes measuring a melt flow index (MFI) of the PE, comparing the measured value of the MFI to a predetermined desired range for the MFI, changing a catalyst feed rate to the polymerization reactor based on the compared values of the MFI, where changes in the catalyst feed rate preemptively compensate for subsequent changes in an oxygen flow rate to the polymerization reactor that maintain a predetermined residence time and bring the MFI of the PE into the predetermined desired range for the MFI; and changing the oxygen flow rate to the polymerization reactor thereby maintaining both the predetermined residence time and bringing the MFI of the PE into the predetermined desired range for the MFI. The measuring and comparing steps are repeated to ensure the measured value of the MFI is within the predetermined desired range of the MFI at the predetermined residence time.Type: GrantFiled: November 27, 2017Date of Patent: May 25, 2021Assignee: Univation Technologies, LLCInventors: Samuel Bernal, Mark G. Goode, Francois Alexandre, William A. Matthews
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Publication number: 20210102016Abstract: Embodiments of the present disclosure are directed towards method for modifying a polymer flow index.Type: ApplicationFiled: December 16, 2020Publication date: April 8, 2021Applicant: Univation Technologies, LLCInventors: Charles D. Lester, Mark G. Goode, Timothy R. Lynn, Kevin J. Cann, John H. Moorhouse, William Albert Matthews, Kefu Sun, Francois Alexandre
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Publication number: 20210054123Abstract: A system and method for charging a chromium-based catalyst to a mix vessel; introducing a reducing agent through an entrance arrangement into the mix vessel, and agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.Type: ApplicationFiled: November 10, 2020Publication date: February 25, 2021Applicant: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Kevin R. Gross
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Publication number: 20210047445Abstract: The present disclosure provides for a system and method for producing a polyethylene polymer (PE) that includes measuring a melt flow index (MFI) of the PE, comparing the measured value of the MFI to a predetermined desired range for the MFI, changing a catalyst feed rate to the polymerization reactor based on the compared values of the MFI, where changes in the catalyst feed rate preemptively compensate for subsequent changes in an oxygen flow rate to the polymerization reactor that maintain a predetermined residence time and bring the MFI of the PE into the predetermined desired range for the MFI; and changing the oxygen flow rate to the polymerization reactor thereby maintaining both the predetermined residence time and bringing the MFI of the PE into the predetermined desired range for the MFI. The measuring and comparing steps are repeated to ensure the measured value of the MFI is within the predetermined desired range of the MFI at the predetermined residence time.Type: ApplicationFiled: October 23, 2020Publication date: February 18, 2021Applicant: Univation Technologies, LLCInventors: Samuel Bernal, Mark G. Goode, Francois Alexandre, William A. Matthews
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Patent number: 10913831Abstract: A film formed from a polyethylene copolymer using a reduced chromium oxide catalyst, ethylene monomers and a co-monomer selected from butene monomers or 1-hexene, where the polyethylene copolymer has a density in the range of from about 0.935 to about 0.950 g/cm3 and an I21/I5 in a range of about 18.0 to about 30.0. The film formed from the polyethylene copolymer has a dart drop impact (g/?m) that significantly greater as compared to a film of the polyethylene copolymer formed using a silyl chromate catalyst in place of the reduced chromium oxide catalyst. A method of making such films is also provided.Type: GrantFiled: January 23, 2017Date of Patent: February 9, 2021Assignee: Univation Technologies, LLCInventors: Cliff R. Mure, Dongming Li, Barbara J. Kopp, Mark G. Goode
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Publication number: 20210016252Abstract: A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.Type: ApplicationFiled: October 7, 2020Publication date: January 21, 2021Applicant: Univation Technologies, LLCInventors: Kevin J. Cann, Mark G. Goode, Kevin R. Gross, John H. Moorhouse
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Patent number: 10870719Abstract: Embodiments of the present disclosure are directed towards method for modifying a polymer flow index. As an example, a method for modifying a polymer flow index can include providing monomers to a polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of a flow index modifier to the polymerization reactor, wherein the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof.Type: GrantFiled: April 17, 2017Date of Patent: December 22, 2020Assignee: Univation Technologies, LLCInventors: Charles D. Lester, Mark G. Goode, Timothy R. Lynn, Kevin J. Cann, John H. Moorhouse, William Albert Matthews, Kefu Sun, Francois Alexandre
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Patent number: 10870720Abstract: A system and method for charging a chromium-based catalyst to a mix vessel; introducing a reducing agent through an entrance arrangement into the mix vessel, and agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.Type: GrantFiled: September 20, 2019Date of Patent: December 22, 2020Assignee: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Kevin R. Gross
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Patent number: 10835890Abstract: A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.Type: GrantFiled: September 1, 2015Date of Patent: November 17, 2020Assignee: Univation Technologies, LLCInventors: Kevin J. Cann, Mark G. Goode, Kevin R. Gross, John H. Moorhouse
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Publication number: 20200262950Abstract: A method of selectively transitioning a polymerization process making an ethylene/alpha-olefin copolymer in such a way that melt elasticity of the copolymer is substantially changed without changing comonomer and without substantially changing density of the copolymer. A method of compensating a reactor temperature-induced change in melt elasticity with an inverse change in H2/C2 gas molar ratio. Also, use of process control variable(s) to selectively change the melt elasticity.Type: ApplicationFiled: October 9, 2018Publication date: August 20, 2020Applicant: Dow Global Technologies LLCInventors: Bo Liu, Mark G. Goode