Patents by Inventor Elizabeth Forrester McCord
Elizabeth Forrester McCord 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: 20100029469Abstract: Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and ?-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.Type: ApplicationFiled: August 1, 2008Publication date: February 4, 2010Applicant: E. I. du Pont de Nemours and CompanyInventors: LIN WANG, Elisabeth M. Hauptman, Lynda Kaye Johnson, Elizabeth Forrester McCord, Stephan J. McLain, Ying Wang
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Publication number: 20090143550Abstract: Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.Type: ApplicationFiled: December 19, 2007Publication date: June 4, 2009Inventors: Steven Dale Ittel, Lynda Kaye Johnson, Lin Wang, Ying Wang, Elizabeth Forrester McCord, Chatherine E. Radzewich, Stephan J. McLain, Karl J. Sweetman, Alison Margaret Anne Bennett, Alex Sergey Ionkin, Rinaldo S. Schiffino
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Patent number: 7348388Abstract: Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.Type: GrantFiled: November 15, 2002Date of Patent: March 25, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Steven Dale Ittel, Lynda Kaye Johnson, Lin Wang, Ying Wang, Elizabeth Forrester McCord, Catherine E. Radzewich, Stephan J. Mclain, Karl J. Sweetman, Alison Margaret Anne Bennett, Alex Sergey Ionkin, Rinaldo S. Schiffino
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Patent number: 7041764Abstract: Ethylene and/or propylene, and ?-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resins.Type: GrantFiled: August 16, 2004Date of Patent: May 9, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Alison Margaret Anne Bennett, Jerald Feldman, Elizabeth Forrester McCord
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Patent number: 6933359Abstract: Ethylene, dienes and optionally ?-olefins are copolymerized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copolymers contain cyclic units in the main chain.Type: GrantFiled: January 5, 2004Date of Patent: August 23, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Alison Margaret Anne Bennett, Elizabeth Forrester McCord
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Patent number: 6897275Abstract: Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and ?-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.Type: GrantFiled: May 31, 2001Date of Patent: May 24, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Elisabeth Hauptman, Lynda Kaye Johnson, Elizabeth Forrester McCord, Ying Wang, Steven Dale Ittel
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Patent number: 6894134Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: June 22, 2001Date of Patent: May 17, 2005Assignees: E. I. duPont de Nemours and Company, University of North Carolina at Chapel HillInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Samuel David Arthur
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Publication number: 20040138395Abstract: Ethylene, dienes and optionally &agr;-olefins are copolymerized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copolymers contain cyclic units in the main chain.Type: ApplicationFiled: January 5, 2004Publication date: July 15, 2004Inventors: Alison Margaret Anne Bennett, Elizabeth Forrester McCord
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Patent number: 6699955Abstract: Ethylene, dienes and optionally &agr;-olefins are copolym-erized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copolymers contain cyclic units in the main chain.Type: GrantFiled: November 14, 2000Date of Patent: March 2, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Alison Margaret Anne Bennett, Elizabeth Forrester McCord
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Patent number: 6689910Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: May 12, 2003Date of Patent: February 10, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Patent number: 6670433Abstract: Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected &agr;-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.Type: GrantFiled: April 2, 2001Date of Patent: December 30, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
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Publication number: 20030212225Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: ApplicationFiled: May 12, 2003Publication date: November 13, 2003Inventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Publication number: 20030212226Abstract: Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.Type: ApplicationFiled: November 15, 2002Publication date: November 13, 2003Inventors: Steven Dale Ittel, Lynda Kaye Johnson, Lin Wang, Ying Wang, Elizabeth Forrester McCord, Catherine E. Radzewich, Stephan J. McLain, Karl J. Sweetman, Alison Margaret Anne Bennett, Alex Sergey Ionkin, Rinaldo S. Schiffino
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Publication number: 20030171508Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: ApplicationFiled: June 22, 2001Publication date: September 11, 2003Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6605679Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: February 1, 2000Date of Patent: August 12, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Publication number: 20030114610Abstract: Ethylene and/or propylene, and &agr;-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resins.Type: ApplicationFiled: September 20, 2002Publication date: June 19, 2003Applicant: E.I. Du Pont de Nemours and CompanyInventors: Alison Margareta Anne Bennett, Jerald Feldman, Elizabeth Forrester Mccord
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Patent number: 6573353Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: September 12, 2000Date of Patent: June 3, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Daniel Joseph Tempel
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Patent number: 6495646Abstract: Polyolefins with unique highly branched structures, and which have unusually low Mark-Houwink constants are described. They are useful for instance as elastomers, viscosity index modifiers and lubricating oil bases.Type: GrantFiled: February 29, 2000Date of Patent: December 17, 2002Assignees: E. I. du Pont de Nemours and Company, University of North Carolina at Chapel HillInventors: Samuel David Arthur, Maurice S. Brookhart, III, Patricia Metzger Cotts, Zhibin Guan, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain
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Patent number: 6482907Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: February 1, 2000Date of Patent: November 19, 2002Assignee: E.I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Publication number: 20020111445Abstract: Ethylene and/or propylene, and &agr;-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resins.Type: ApplicationFiled: September 4, 2001Publication date: August 15, 2002Applicant: E.I. Du Pont De Nemours and CompanyInventors: Alison Margaret Anne Bennett, Jerald Feldman, Elizabeth Forrester McCord