Patents by Inventor Barbara J. Kopp
Barbara J. Kopp 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).
-
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
-
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
-
Publication number: 20190161568Abstract: 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: ApplicationFiled: January 7, 2019Publication date: May 30, 2019Applicant: Univation Technologies, LLCInventors: Mark G. Goode, Francois Alexandre, Kevin J. Cann, Barbara J. Kopp, William A. Matthews, John H. Moorhouse, Cliff R. Mure
-
Patent number: 10227428Abstract: 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: September 25, 2014Date of Patent: March 12, 2019Assignee: Univation Technologies, LLCInventors: Mark G. Goode, Francois Alexandre, Kevin J. Cann, Barbara J. Kopp, William A. Matthews, John H. Moorehouse, Cliff R. Mure
-
Publication number: 20190031841Abstract: 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/im) 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: ApplicationFiled: January 23, 2017Publication date: January 31, 2019Applicant: Univation Technologies, LLCInventors: Cliff R. Mure, Dongming Li, Barbara J. Kopp, Mark G. Goode
-
Publication number: 20160297907Abstract: 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: ApplicationFiled: September 25, 2014Publication date: October 13, 2016Applicant: Univation Technologies, LLCInventors: Mark G. Goode, Francois Alexandre, Kevin J. Cann, Barbara J. Kopp, William A. Matthews, John H. Moorehouse, Cliff R. Mure
-
Publication number: 20140179882Abstract: The present invention is broadly directed to various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as gas phase reactor system or liquid phase reactor system. The invention is also broadly directed to various systems in which polymer properties are manipulated by addition of DEALE directly to a polymerization reactor system.Type: ApplicationFiled: December 11, 2009Publication date: June 26, 2014Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Mark G. Goode, Kevin J. Cann, Ronald S. Eisinger, Barbara J. Kopp, John H. Moorhouse
-
Patent number: 8101691Abstract: Disclosed herein are various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods comprise manipulating properties of polymers produced by adjusting the hydrogen feed rate.Type: GrantFiled: December 17, 2009Date of Patent: January 24, 2012Assignee: Univation Technologies, LLCInventors: Mark G. Goode, Maria Pollard, Kevin J. Cann, Ronald S. Eisinger, Barbara J. Kopp, John H. Moorhouse
-
Publication number: 20110237763Abstract: Disclosed herein are various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods comprise manipulating properties of polymers produced by adjusting the hydrogen feed rate.Type: ApplicationFiled: December 17, 2009Publication date: September 29, 2011Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Mark G. Goode, Maria Pollard, Kevin J. Cann, Ronald S. Eisinger, Barbara J. Kopp, John H. Moorhouse
-
Publication number: 20110218307Abstract: The present invention is broadly directed to various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as gas phase reactor system or liquid phase reactor system. The invention is also broadly directed to various systems in which polymer properties are manipulated by addition of DEALE directly to a polymerization reactor system.Type: ApplicationFiled: December 11, 2009Publication date: September 8, 2011Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Mark G. Goode, Kevin J. Cann, Ronald S. Eisinger, Barbara J. Kopp, John H. Moorhouse
-
Publication number: 20100291334Abstract: Disclosed herein is a polyolefin polymer having improved properties wherein the polymer is produced using a chromium based catalyst in combination with aluminum alkyl activators and co-catalysts. Also disclosed is a pipe comprising the inventive polymer and a film comprising the inventive polymer, each having improved properties over those known in the art.Type: ApplicationFiled: May 18, 2010Publication date: November 18, 2010Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Kevin J. Cann, Mark G. Goode, John H. Moorhouse, Barbara J. Kopp