Patents by Inventor James Longmire

James Longmire 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).

  • POLYDENTATE HETEROATOM LIGAND CONTAINING METAL COMPLEXES, CATALYSTS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20090221770
    Abstract: Metal complexes comprising certain polydentate heteroatom containing ligands, catalysts, and coordination polymerization processes employing the same are suitably employed to prepare polymers having desirable physical properties.
    Type: Application
    Filed: December 8, 2006
    Publication date: September 3, 2009
    Inventors: Jerzy Klosin, Lily Ackerman, Xiaohong Bei, Gary M. Diamond, James Longmire, Vince Murphy, Victor Nava-Salgado, James A.W. Shoemaker
  • METHODS OF USING HETEROCYCLE-AMINE LIGANDS, COMPOSITIONS, COMPLEXES, AND CATALYSTS
    Publication number: 20090143222
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalyst have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Application
    Filed: April 29, 2008
    Publication date: June 4, 2009
    Applicant: Symyx Technologies, Inc.
    Inventors: Gary M. Diamond, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, Victor Nava-Salgado, James A.W. Shoemaker, Pu Sun
  • METHODS OF USING HETEROCYCLE-AMINE LIGANDS, COMPOSITIONS, COMPLEXES, AND CATALYSTS
    Publication number: 20090131619
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations suchas the polymerization of monomers into polymers. The catalyst have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Application
    Filed: April 29, 2008
    Publication date: May 21, 2009
    Applicant: SYMYX TECHNOLOGIES, INC.
    Inventors: Gary M. Diamond, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, Victor Nava-Salgado, James A.W. Shoemaker, Pu Sun
  • Methods For Oligomerizing Olefins
    Publication number: 20080293899
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Application
    Filed: August 8, 2008
    Publication date: November 27, 2008
    Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiahong Bei, Matthew C. Kuchta, Tom Boussie, John F. Walzer, JR., Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Methods of oligomerizing olefins
    Publication number: 20080269443
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Application
    Filed: June 27, 2008
    Publication date: October 30, 2008
    Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiaohong Bei, Mathew C. Kuchta, Tom Boussie, John F. Walzer, Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Methods for oligomerizing olefins
    Patent number: 7425661
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: September 16, 2008
    Assignee: ExxonMobil Chemicals Patents Inc.
    Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie, John F. Walzer, Jr., Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Methods for oligomerizing olefins
    Patent number: 7414006
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: August 19, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie, John F. Walzer, Jr., Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Methods of using heterocycle-amine ligands, compositions, complexes, and catalysts
    Patent number: 7387980
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: June 17, 2008
    Inventors: Gary M. Diamond, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, Victor Nava-Salgado, James A. W. Shoemaker, Pu Sun
  • Heterocycle-amine ligands, compositions, complexes, and catalysts
    Patent number: 7256296
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: August 14, 2007
    Assignee: Symyx Technologies, Inc.
    Inventors: Gary M. Diamond, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, Victor Nava-Salgado, James A. W. Shoemaker, Pu Sun
  • Methods for oligomerizing olefins
    Publication number: 20060247399
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Application
    Filed: March 9, 2006
    Publication date: November 2, 2006
    Inventors: David McConville, Lily Ackerman, Robert Li, Xiaohong Bei, Matthew Kuchta, Tom Boussie, John Walzer, Gary Diamond, Francis Rix, Keith Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Methods for oligomerizing olefins
    Publication number: 20060247483
    Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
    Type: Application
    Filed: March 9, 2006
    Publication date: November 2, 2006
    Inventors: David McConville, Lily Ackerman, Robert Li, Xiaohong Bei, Matthew Kuchta, Tom Boussie, John Walzer, Gary Diamond, Francis Rix, Keith Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
  • Styrene polymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Patent number: 7074870
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: July 11, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A. W. Shoemaker
  • Phenol-heterocyclic ligands, metal complexes, and their uses as catalysts
    Publication number: 20060135713
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate phenol-heterocyclic compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including high comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts particularly polymerize styrene to form polystyrene.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 22, 2006
    Inventors: Margarete Leclerc, Xiaohong Bei, James Longmire, Gary Diamond, James Shoemaker, Anne LaPointe, Lily Ackerman
  • Methods of using heterocycle-amine ligands, compositions, complexes, and catalysts
    Publication number: 20060094839
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Application
    Filed: September 21, 2005
    Publication date: May 4, 2006
    Applicant: Symyx Technologies, Inc.
    Inventors: Gary Diamond, Anne LaPointe, Margarete Leclerc, James Longmire, Victor Nava-Salgado, James Shoemaker, Pu Sun
  • Heterocycle-amine ligands, compositions, complexes, and catalysts
    Publication number: 20060094867
    Abstract: Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
    Type: Application
    Filed: September 21, 2005
    Publication date: May 4, 2006
    Applicant: Symyx Technologies, Inc.
    Inventors: Gary Diamond, Anne LaPointe, Margarete Leclerc, James Longmire, Victor Nava-Salgado, James Shoemaker, Pu Sun
  • Styrene polymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Publication number: 20060025547
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Application
    Filed: September 23, 2005
    Publication date: February 2, 2006
    Applicant: Symyx Technologies, Inc.
    Inventors: Oliver Brummer, Gary Diamond, Christopher Goh, Anne LaPointe, Margarete Leclerc, James Longmire, James Shoemaker
  • Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Patent number: 6965004
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: November 15, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A. W. Shoemaker
  • Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Patent number: 6933355
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: August 23, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A. W. Shoemaker
  • Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Publication number: 20040214717
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Application
    Filed: May 20, 2004
    Publication date: October 28, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Oliver Brummer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A.W. Shoemaker
  • Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Publication number: 20040214714
    Abstract: Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.
    Type: Application
    Filed: May 20, 2004
    Publication date: October 28, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Oliver Brummer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A.W. Shoemaker