Patents by Inventor James A. W. Shoemaker

James A. W. Shoemaker 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).

  • Bridged Bi-Aromatic Ligands, Catalysts, Processes For Polymerizing And Polymers Therefrom
    Publication number: 20080269470
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Application
    Filed: July 9, 2007
    Publication date: October 30, 2008
    Applicant: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Oliver Brummer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A.W. Shoemaker
  • 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
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 7241715
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: July 10, 2007
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A. W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 7126031
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: October 24, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margaret K. Leclerc, James A. W. Shoemaker
  • 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
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 7030256
    Abstract: New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: April 18, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A. W. 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
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 6897276
    Abstract: New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: May 24, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A. W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 6869904
    Abstract: New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: March 22, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margaret K. Leclerc, James A. W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Patent number: 6841502
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 11, 2005
    Assignee: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, 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
  • 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
    Patent number: 6794514
    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: April 12, 2002
    Date of Patent: September 21, 2004
    Assignee: Symyx Technologies, Inc.
    Inventors: Oliver Brümmer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A. W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Publication number: 20040014950
    Abstract: New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 22, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Oliver Brummer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margaret K. Leclerc, James A. W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Publication number: 20040010103
    Abstract: New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 15, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James A.W. Shoemaker
  • Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
    Publication number: 20040005984
    Abstract: New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 8, 2004
    Applicant: Symyx Technologies, Inc.
    Inventors: Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margaret K. Leclerc, James A.W. Shoemaker
  • Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing
    Publication number: 20030232717
    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: April 12, 2002
    Publication date: December 18, 2003
    Applicant: Symyx Technologies, Inc.
    Inventors: Oliver Brummer, Gary M. Diamond, Christopher Goh, Anne M. LaPointe, Margarete K. Leclerc, James Longmire, James A. W. Shoemaker