Patents by Inventor Terry John Burkhardt
Terry John Burkhardt 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: 7494626Abstract: A polymerization process is provided. For example, a polymerization process is described, including providing a catalyst slurry having a metallocene catalyst and a first oil, providing a transport medium including a second oil and combining the transport medium and the catalyst slurry to form a catalyst mixture. The process may further include introducing the catalyst mixture to a polymerization reactor and contacting olefin monomers with the catalyst mixture to polymerize the olefin monomers and form polyolefins.Type: GrantFiled: July 18, 2006Date of Patent: February 24, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Lawrence Carl Smith, James Charles Vizzini, Ted Alexander Powell, Terry John Burkhardt, Anthony Nicholas Speca, Shiaw Tzuu Ju
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Patent number: 7456021Abstract: Disclosed herein is a method for determining the presence of an activated catalyst site in a catalyst system comprising a catalyst precursor and an activator, wherein the catalyst system is capable of providing a luminescence, the method comprising: performing a time resolved luminescence analysis on a reference analyte comprising the catalyst precursor that is not in combination with the activator, and performing a time resolved luminescence analysis on a sample analyte comprising the catalyst precursor in combination with the activator, determining a reference emission energy and a reference lifetime each associated with a maximum emission intensity in the reference output values; determining a sample emission energy and a sample lifetime each associated with a maximum emission intensity in the sample output values; and comparing the values to determine if the sample comprises an activated catalyst site. Use of the above method in relation to an activation index is also disclosed.Type: GrantFiled: January 16, 2004Date of Patent: November 25, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Burkhard Endeward, Hans Thomann, Yuan-Ju Chen, Terry John Burkhardt
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Patent number: 7232868Abstract: A polymerization process is provided. For example, a polymerization process is described, including providing a catalyst slurry having a metallocene catalyst and a first oil, providing a transport medium including a second oil and combining the transport medium and the catalyst slurry to form a catalyst mixture. The process may further include introducing the catalyst mixture to a polymerization reactor and contacting olefin monomers with the catalyst mixture to polymerize the olefin monomers and form polyolefins.Type: GrantFiled: September 22, 2003Date of Patent: June 19, 2007Assignee: Exxon/Mobil Chemical Patents Inc.Inventors: Lawrence Carl Smith, James Charles Vizzini, Ted Alexander Powell, Terry John Burkhardt, Anthony Nicholas Speca, Shiaw Tzuu Ju
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Patent number: 7157591Abstract: Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula: wherein M1 preferably is zirconium or hafnium; and R5 is different from hydrogen.Type: GrantFiled: December 10, 2001Date of Patent: January 2, 2007Assignee: ExxonMobie Chemical Patents Inc.Inventors: Terry John Burkhardt, James Robert Hart, William Thomas Haygood, Robert Tan Li
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Patent number: 6825372Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula: wherein R9 and R11 are identical or different and are a Group 14 radical having from 1 to 20 carbon atoms or are each primary, secondary or tertiary butyl groups, aryl groups, isopropyl groups, fluoroalkyl groups, trialkyl silyl groups, or other groups of similar size.Type: GrantFiled: January 31, 2002Date of Patent: November 30, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Publication number: 20040097667Abstract: A polymerization process is provided. For example, a polymerization process is described, including providing a catalyst slurry having a metallocene catalyst and a first oil, providing a transport medium including a second oil and combining the transport medium and the catalyst slurry to form a catalyst mixture. The process may further include introducing the catalyst mixture to a polymerization reactor and contacting olefin monomers with the catalyst mixture to polymerize the olefin monomers and form polyolefins.Type: ApplicationFiled: September 22, 2003Publication date: May 20, 2004Inventors: Lawrence Carl Smith, James Charles Vizzini, Ted Alexander Powell, Terry John Burkhardt, Anthony Nicholas Speca, Shiaw Tzuu Ju
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Patent number: 6492465Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.Type: GrantFiled: March 24, 2000Date of Patent: December 10, 2002Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
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Publication number: 20020165084Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: ApplicationFiled: January 31, 2002Publication date: November 7, 2002Inventors: Terry John Burkhardt, William T. Haygood, Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6472474Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.Type: GrantFiled: November 27, 2001Date of Patent: October 29, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
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Publication number: 20020086947Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.Type: ApplicationFiled: November 27, 2001Publication date: July 4, 2002Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Francis C. Rix, Dawn C. Wiser
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Patent number: 6414095Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization The metallocene compositions may be represented by the formula: wherein M1 is selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten; R1 and R2 are identical or different, and are one of a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C6-C10 aryl group, a C6-C10 aryloxy group, a C2-C40 alkenyl group, a C7-C40 arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, an OH group or a halogen atom or a conjugated diene which is optionally substituted with one or more hydrocarbyl, tri(hydrocarbyl)silyl groups or tri(hydrocarbyl)silylhydrocarbyl groups, said diene having up to 30 atoms not counting hydrogen; R3 are identical or different and are each a hydrogen atom, a halogen atom, a C1-C10 alkyl group which may be halogenaType: GrantFiled: July 19, 2000Date of Patent: July 2, 2002Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6399723Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: June 4, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6384142Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.Type: GrantFiled: March 24, 2000Date of Patent: May 7, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
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Patent number: 6380120Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 30, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Udo M. Stehling, James R. Hart, Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta
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Patent number: 6380124Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 30, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6380330Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 30, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6376411Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 23, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6376412Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 23, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6376409Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 23, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart
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Patent number: 6376407Abstract: This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization.Type: GrantFiled: July 19, 2000Date of Patent: April 23, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Terry John Burkhardt, William T. Haygood, Jr., Robert Tan Li, James Charles Vizzini, Matthew Cornyn Kuchta, Udo M. Stehling, James R. Hart