Patents by Inventor James L. Swecker, II
James L. Swecker, II 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: 9410001Abstract: Disclosed herein are improvements in recycle gas cooler systems in gas-phase polymerization processes that reduce the tendency for cooler fouling, including a recycle gas cooler system comprising a shell-and-tube heat exchanger. One or more of the tubes of the shell-and-tube heat exchanger may have a flared tube inlet at the tube sheet. The shell-and-tube heat exchanger may also be coupled to a straight inlet pipe having a length that is either at least about 5 times the inner diameter of the straight inlet pipe or at least about 15 feet, whichever is greater.Type: GrantFiled: November 11, 2013Date of Patent: August 9, 2016Assignee: Univation Technologies, LLCInventors: Ping Cai, James L. Swecker, II, Mark W. Blood, Laura J. Dietsche, II, F. David Hussein
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Publication number: 20150284481Abstract: Disclosed herein are improvements in recycle gas cooler systems in gas-phase polymerization processes that reduce the tendency for cooler fouling, including a recycle gas cooler system comprising a shell-and-tube heat exchanger. One or more of the tubes of the shell-and-tube heat exchanger may have a flared tube inlet at the tube sheet. The shell-and-tube heat exchanger may also be coupled to a straight inlet pipe having a length that is either at least about 5 times the inner diameter of the straight inlet pipe or at least about 15 feet, whichever is greater.Type: ApplicationFiled: November 11, 2013Publication date: October 8, 2015Applicant: Univation Technologies, LLCInventors: Ping Cai, James L. Swecker, II, Mark W. Blood, Laura J. Dietsche, II, F. David Hussein
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Patent number: 9023958Abstract: A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.Type: GrantFiled: October 25, 2012Date of Patent: May 5, 2015Assignee: Univation Technologies, LLCInventors: Dale A. Wright, John R. Parrish, James L. Swecker, II, Mark G. Goode
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Publication number: 20140378640Abstract: A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.Type: ApplicationFiled: October 25, 2012Publication date: December 25, 2014Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Dale A. Wright, John R. Parrish, James L. Swecker, II, Mark G. Goode
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Patent number: 8293853Abstract: A method and apparatus are disclosed for controlling product discharge from a fluidized bed reactor and for minimizing the loss of the unreacted monomer in the fluidizing gas upon removing the solid polymer product from the reactor. The method and apparatus utilize at least one detector in the product tank or its vent line and a control system in communication with the detector and the product tank fill valve, along with certain algorithms, to adjust by an iterative process, the product discharge time, thereby maximizing resin fill in the product tank and minimizing the lost reactor gas volume.Type: GrantFiled: February 27, 2009Date of Patent: October 23, 2012Assignee: Univation Technologies, LLCInventors: John R. Parrish, Jeffrey B. Drabish, Oscar M. Longoria, Jr., James L. Swecker, II
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Publication number: 20100331499Abstract: A method and apparatus are disclosed for controlling product discharge from a fluidized bed reactor and for minimizing the loss of the unreacted monomer in the fluidizing gas upon removing the solid polymer product from the reactor. The method and apparatus utilize at least one detector in the product tank or its vent line and a control system in communication with the detector and the product tank fill valve, along with certain algorithms, to adjust by an iterative process, the product discharge time, thereby maximizing resin fill in the product tank and minimizing the lost reactor gas volume.Type: ApplicationFiled: February 27, 2009Publication date: December 30, 2010Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC.Inventors: John R. Parrish, Jeffrey B. Drabish, Oscar M. Longoria, JR., James L. Swecker, II
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Publication number: 20090214395Abstract: A method and apparatus are disclosed for controlling product discharge from a fluidized bed reactor and for minimizing the loss of the unreacted monomer in the fluidizing gas upon removing the solid polymer product from the reactor. The method and apparatus utilize at least one detector in the product tank or its vent line and a control system in communication with the detector and the product tank fill valve, along with certain algorithms, to adjust by an iterative process, the product discharge time, thereby maximizing resin fill in the product tank and minimizing the lost reactor gas volume.Type: ApplicationFiled: February 27, 2008Publication date: August 27, 2009Applicant: THE DOW CHEMICAL COMPANYInventors: John R. Parrish, Jeffrey B. Drabish, Oscar M. Longoria, JR., James L. Swecker, II
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Patent number: 6858684Abstract: This invention relates to processes for transitioning among polymerization catalyst systems, preferably catalyst systems, which are incompatible with each other. Particularly, the invention relates to processes for transitioning among olefin polymerization reactions utilizing Ziegler-Natta catalyst systems, metallocene catalyst systems and chromium-based catalyst systems.Type: GrantFiled: November 17, 2003Date of Patent: February 22, 2005Assignee: Univation Technologies, LLCInventors: Ian D. Burdett, Ping P. Cai, Ronald Steven Eisinger, Mark Gregory Goode, F. David Hussein, Michael Allen Kinnan, Michael Elroy Muhle, James L. Swecker, II