Patents by Inventor Phuong Cao
Phuong Cao 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: 20170260306Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a flow rate of a fluidizing gas of about 0.1 ft./sec at less than about 370° C. and greater than about 0.35 ft./sec at temperatures greater than about 370° C. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.Type: ApplicationFiled: August 19, 2014Publication date: September 14, 2017Applicant: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
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Publication number: 20170247482Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed while maintaining a ratio of a pressure drop across a distributor plate to a pressure drop across the fluidized bed of greater than about 7%. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.Type: ApplicationFiled: August 19, 2014Publication date: August 31, 2017Applicant: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
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Publication number: 20170240674Abstract: Continuity compositions are provided as are methods of their preparation. The compositions comprise metal carboxylate salts and fatty amines and find advantageous use in olefin polymerization processes.Type: ApplicationFiled: May 4, 2017Publication date: August 24, 2017Applicant: Univation Technologies, LLCInventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Fathi David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
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Publication number: 20170233506Abstract: Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed with a height to diameter ratio of at least about 2.3. The mixture is calcined to decompose the fluoride donor, forming a fluorinated support.Type: ApplicationFiled: August 19, 2014Publication date: August 17, 2017Applicant: Univation Technologies, LLCInventors: John H. Moorhouse, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, C. Jeff Harlan, Wesley R. Mariott
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Publication number: 20170183434Abstract: Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. The catalyst composition comprises at least one supported polymerization catalyst wherein the catalyst composition is modified with at least one fatty amine wherein the fatty amine is substantially free of particulate inorganic material.Type: ApplicationFiled: February 5, 2015Publication date: June 29, 2017Applicant: Univation Technologies, LLCInventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, F. David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
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Patent number: 9676885Abstract: Continuity compositions are provided as are methods of their preparation. The compositions comprise at least one metal carboxylate salt which is modified with at least one molten fatty amine. These compositions find advantageous use in olefin polymerization processes.Type: GrantFiled: March 10, 2015Date of Patent: June 13, 2017Assignee: Univation Technologies, LLCInventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, F. David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
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Patent number: 9637567Abstract: Spray-dried catalyst compositions comprising a transition metal complex and polymerization processes employing the same are disclosed herein. An embodiment provides a spray-dried catalyst composition comprising a transition metal catalyst component represented by the following formula: (I) and polymerization process employing the same.Type: GrantFiled: March 28, 2012Date of Patent: May 2, 2017Assignee: Univation Technologies, LLCInventors: Wesley R. Mariott, Phuong A. Cao, Daniel P. Zilker, Jr., John H. Oskam, Cliff R. Mure
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Publication number: 20170081432Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.Type: ApplicationFiled: December 5, 2016Publication date: March 23, 2017Applicant: Univation Technologies, LLCInventors: C. Dale Lester, Kevin J. Cann, Phuong A. Cao, Abarajith S. Hari, F. David Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, JR., Mark G. Goode
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Publication number: 20170022310Abstract: Continuity compositions are provided as are methods of their preparation. The compositions comprise at least one metal carboxylate salt which is modified with at least one molten fatty amine. These compositions find advantageous use in olefin polymerization processes.Type: ApplicationFiled: March 10, 2015Publication date: January 26, 2017Applicant: Univation Technologies, LLCInventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, F. David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
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Patent number: 9540460Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.Type: GrantFiled: November 20, 2013Date of Patent: January 10, 2017Assignee: Univation Technologies, LLCInventors: C. Dale Lester, Kevin J. Cann, Phuong A. Cao, Abarajith S. Hari, F. David Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, Jr., Mark G. Goode
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Patent number: 9234060Abstract: Disclosed herein are methods of preparing a catalyst system comprising a spray-dried activator and polymerization processes employing these catalyst systems.Type: GrantFiled: November 6, 2012Date of Patent: January 12, 2016Assignee: Univation Technologies, LLCInventors: Sun-Chueh Kao, Phuong A. Cao, C. Jeff Harlan, Parul A. Khokhani, George Rodriguez, Francis C. Rix, Garth R. Giesbrecht
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Publication number: 20150368377Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.Type: ApplicationFiled: November 20, 2013Publication date: December 24, 2015Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Dale C. Lester, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, Abarajith S. Hari, David F. Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, JR.
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Publication number: 20150344667Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst system can include a catalyst support, wherein the catalyst support has an average particle size of about 2 microns to about 200 microns. Nanoparticles are adhered to the catalyst support, wherein the nanoparticles have an average particle size of about 2 to about 200 nanometers. A catalyst is supported on the catalyst support.Type: ApplicationFiled: December 30, 2013Publication date: December 3, 2015Applicant: Dow Global Technologies LLCInventors: Yuanqiao Rao, Ping Cai, Kevin J. Cann, David F. Hussein, Wesley R. Mariott, Phuong A. Cao
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Patent number: 9181371Abstract: Described herein are methods comprising contacting one or more olefins with a catalyst system in a polymerization reactor at conditions sufficient to produce a polyolefin, wherein the catalyst system comprises a first metallocene catalyst compound comprising a first transition metal atom, two cyclopentadienyl ligands bound to the first transition metal atom, and two leaving groups bound to the first transition metal atom, wherein at least one leaving group is selected from the group consisting of a halo-phenoxy and a halo-alkoxy; wherein the first metallocene catalyst compound has a catalyst productivity that is at least 20% greater than a comparative metallocene catalyst compound used to produce the same polyolefin, wherein the comparative metallocene catalyst compound is the same as the first metallocene catalyst compound except neither leaving group is a halo-phenoxy or a halo-alkoxy.Type: GrantFiled: November 6, 2012Date of Patent: November 10, 2015Assignee: Univation Technologies, LLCInventors: Lixin Sun, Francis C. Rix, Sun-Chueh Kao, Parul A. Khokhani, Phuong A. Cao
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Publication number: 20150166699Abstract: Disclosed herein are methods of preparing a catalyst system comprising a spray-dried activator and polymerization processes employing these catalyst systems.Type: ApplicationFiled: November 6, 2012Publication date: June 18, 2015Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Sun-Chueh Kao, Phuong A. Cao, C. Jeff Harlan, Parul A. Khokhani, George Rodriguez, Francis C. Rix, Garth R. Giesbrecht
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Publication number: 20150133615Abstract: Spray-dried catalyst compositions comprising a transition metal complex and polymerization processes employing the same are disclosed herein. An embodiment provides a spray-dried catalyst composition comprising a transition metal catalyst component represented by the following formula: (I) and polymerization process employing the same.Type: ApplicationFiled: March 28, 2012Publication date: May 14, 2015Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Wesley R. Mariott, Phuong A. Cao, Daniel P. Zilker, JR., John H. Oskam, Cliff R. Mure
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Publication number: 20140288249Abstract: Described herein are methods comprising contacting one or more olefins with a catalyst system in a polymerization reactor at conditions sufficient to produce a polyolefin, wherein the catalyst system comprises a first metallocene catalyst compound comprising a first transition metal atom, two cyclopentadienyl ligands bound to the first transition metal atom, and two leaving groups bound to the first transition metal atom, wherein at least one leaving group is selected from the group consisting of a halo-phenoxy and a halo-alkoxy; wherein the first metallocene catalyst compound has a catalyst productivity that is at least 20% greater than a comparative metallocene catalyst compound used to produce the same polyolefin, wherein the comparative metallocene catalyst compound is the same as the first metallocene catalyst compound except neither leaving group is a halo-phenoxy or a halo-alkoxy.Type: ApplicationFiled: November 6, 2012Publication date: September 25, 2014Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Lixin Sun, Francis C. Rix, Sun-Chueh Kao, Parul A. Khokhani, Phuong A. Cao
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Patent number: 8835582Abstract: Catalyst systems and methods for making and using the same. The catalyst system can include a single site catalyst compound, a support comprising fluorinated alumina, and an aluminoxane. The aluminoxane can be present in an amount of about 10 mmol or less per gram of the support.Type: GrantFiled: February 18, 2011Date of Patent: September 16, 2014Assignee: Univation Technologies, LLCInventors: Kevin J. Cann, C. Jeff Harlan, Wesley R. Mariott, Lixin Sun, Daniel P. Zilker, Jr., F. David Hussein, Phuong A. Cao, John H. Moorhouse, Mark G. Goode
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Patent number: 8497330Abstract: Methods for gas phase olefin polymerization are provided. The method can include combining a spray dried catalyst system with a diluent to produce a catalyst slurry. The catalyst system can include a metallocene compound. Ethylene, a continuity additive, and the catalyst slurry can be introduced to a gas phase fluidized bed reactor. The reactor can be operated at conditions sufficient to produce a polyethylene. The spray dried catalyst system can have a catalyst productivity of at least 12,000 grams polyethylene per gram of the catalyst system.Type: GrantFiled: December 22, 2010Date of Patent: July 30, 2013Assignee: Univation Technologies, LLCInventors: F. David Hussein, Kevin J. Cann, Ann M. Schoeb-Wolters, Phuong A. Cao, Bruce J. Savatsky, Eric J. Markel, Daniel P. Zilker, Jr., Garth R. Giesbrecht
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Publication number: 20130035463Abstract: Catalyst systems and methods for making and using the same. The catalyst system can include a single site catalyst compound, a support comprising fluorinated alumina, and an aluminoxane. The aluminoxane can be present in an amount of about 10 mmol or less per gram of the support.Type: ApplicationFiled: February 18, 2011Publication date: February 7, 2013Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Kevin J. Cann, C. Jeff Harlan, Wesley R. Mariott, Lixin Sun, Daniel P. Zilker, JR., F. David Hussein, Phuong A. Cao, John H. Moorhouse, Mark G. Goode