Patents by Inventor Joel L. Martin

Joel L. Martin 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).

  • CATALYST COMPOSTIONS AND POLYOLEFINS FOR EXTRUSION COATING APPLICATIONS
    Publication number: 20090054606
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.
    Type: Application
    Filed: October 6, 2008
    Publication date: February 26, 2009
    Inventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
  • Polymerization catalysts for producing polymers with low levels of long chain branching
    Patent number: 7470758
    Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging ?5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: December 30, 2008
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Michael D. Jensen, Joel L. Martin, Max P. McDaniel, David C. Rolfing, Qing Yang, Matthew G. Thorn, Ashish M. Sukhadia, Youlu Yu, Jerry T. Lanier
  • Process for one-pot synthesis of 1,1-diphenyl-1-(3-substituted-cyclopentadienyl)-1-(2,7-di-t-butyl-fluoren-9-yl)methane type ligands
    Patent number: 7468452
    Abstract: The present invention is directed to a method of making a ligand which can be used to form an ansa-metallocene. Further, the present invention is directed to a method of making the ansa-metallocene. In both methods the process steps employed to form the ligand are conducted in the presence of tetrahydrofuran, a substituted tetrahydrofuran, tetrahydropyran, a substituted tetrahydropyran or ethylene glycol dimethyl ether.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: December 23, 2008
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Joel L. Martin, Albert P. Masino, Qing Yang
  • Catalyst compositions and polyolefins for extrusion coating applications
    Patent number: 7456243
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: November 25, 2008
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
  • Fulvene purification
    Publication number: 20080287725
    Abstract: The present invention provides a method of removing undesired isomers, including substituted cyclopentadiene regioisomers, from the desired fulvene in a crude fulvene composition by selectively reacting the undesired isomers with pyrrolidine and 4-(N,N-dimethylamino)benzaldehyde. This reaction converts the undesired substituted cyclopentadienes into fulvene-type compounds that is readily separated from the desired fulvene.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY
    Inventors: Joel L. Martin, Qing Yang, Rex E. Murray
  • Synthesis of 6-aryl-6-alkyl fulvenes, 6-aryl-6-alkenyl fulvenes, and related compounds
    Patent number: 7420097
    Abstract: The present invention provides a method of making fulvenes, particularly 6-aryl-6-alkylfulvenes, 6-aryl-6-alkenylfulvenes, and related compounds, by combining alkyl- or alkenyl-arylketones with magnesium cyclopentadienyl reagents in nonprotic, including ethereal, solvents. The use of these compounds in preparing bis(cyclopentadienyl)methanes and related compounds, and ansa-metallocenes, is disclosed.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: September 2, 2008
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Matthew G. Thorn, Michael D. Jensen, Joel L. Martin, Qing Yang, James L. Smith
  • Organometal compound catalyst
    Patent number: 7417097
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and a treated solid oxide compound.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: August 26, 2008
    Assignee: Phillips Petroleum Company
    Inventors: Youlu Yu, Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Christopher E. Wittner, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, David C. Rohlfing
  • Organometal catalyst compositions
    Patent number: 7390764
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: June 24, 2008
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • POLYETHYLENE FILM HAVING IMPROVED MECHANICAL AND BARRIER PROPERTIES AND METHOD OF MAKING SAME
    Publication number: 20080004411
    Abstract: A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of greater than about 135 g, and a moisture vapor transmission rate, measured in accordance with ASTM F1249 at 100° F. and 90% relative. humnidity, of less tha about 0.85 g-mil/100 square inch/24 hr, wherein said ASTM tests are performed on a test specimen having a 0.8 mil thickness.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 3, 2008
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Ashish M. Sukhadia, Joel L. Martin, Qing Yang, Kumudini C. Jayaratne, J. Todd Lanier
  • Polymerization catalysts and process for producing bimodal polymers in a single reactor
    Patent number: 7312283
    Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having a HLMI of from about 0.5 to about 25, a polymer density of from about 0.920 to about 0.965, and a polydispersity of from about 3.0 to about 30.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: December 25, 2007
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Joel L. Martin, Matthew G. Thorn, Max P. McDaniel, Michael D. Jensen, Qing Yang, Paul J. DesLauriers, Mark E. Kertok
  • Acidic activator-supports and catalysts for olefin polymerization
    Patent number: 7294599
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 13, 2007
    Assignee: Chevron Phillips Chemical Co.
    Inventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
  • Resins that yield low haze films and the process for their production
    Patent number: 7199073
    Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having decreased haze while minimizing impact on other properties, such as dart impact.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: April 3, 2007
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Joel L. Martin, Elizabeth A. Benham, Mark E. Kertok, Michael D. Jensen, Max P. McDaniel, Gil R. Hawley, Qing Yang, Matthew G. Thorn, Ashish M. Sukhadia
  • Organochromium/metallocene combination catalysts for producing bimodal resins
    Patent number: 7163906
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of at least one metallocene compound, at least one organochromium compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: January 16, 2007
    Assignee: Chevron Phillips Chemical Company, LLP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Michael D. Jensen, Kathy S. Collins, Joel L. Martin, Gil R. Hawley
  • Polymerization catalysts for producing polymers with low levels of long chain branching
    Patent number: 7148298
    Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging ?5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: December 12, 2006
    Assignee: Chevron Phillips Chemical Company, L.P.
    Inventors: Michael D. Jensen, Joel L. Martin, Max P. McDaniel, David C. Rolfing, Qing Yang, Matthew G. Thorn, Ashish M. Sukhadia, Youlu Yu, Jerry T. Lanier
  • Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength
    Patent number: 7119153
    Abstract: This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new polyolefins. The compositions and methods disclosed herein provide ethylene polymers and copolymers with lower MI, increased melt strength, and good MD tear properties.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: October 10, 2006
    Inventors: Michael D. Jensen, Joel L. Martin, Max P. McDaniel, Qing Yang, Matthew G. Thorn, Elizabeth A. Benham, Ted H. Cymbaluk, Ashish M. Sukhadia, Rajendra K. Krishnaswamy, Mark E. Kertok
  • Olefin polymerization processes and products thereof
    Patent number: 7119043
    Abstract: A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymers and ultra high molecular weight ethylene copolymers. Catalyst systems used are selected from the group consisting of inorganic oxide supported titanium-containing catalyst systems, inorganic oxide supported organo-zirconium catalyst systems and inorganic oxide supported organo-hafnium catalyst systems.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: October 10, 2006
    Assignee: Phillips Petroleum Company
    Inventors: Joel L. Martin, Joseph J. Bergmeister, Eric T. Hsieh, Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora
  • Polymerization catalysts
    Patent number: 7109277
    Abstract: A process to produce a polymer is provided. The process comprising contacting a treated solid oxide compound, an organometal compound, and an organoaluminum compound in the presence of an alpha olefin under polymerization conditions to produce the polymer.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 19, 2006
    Assignee: Phillips Petroleum Company
    Inventors: Gil R. Hawley, Max P. McDaniel, Christopher E. Wittner, Michael D. Jensen, Joel L. Martin, Elizabeth A. Benham, Anthony P. Eaton, Kathy S. Collins
  • Ethylene polymers and copolymers with high optical opacity
    Patent number: 7094857
    Abstract: This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/?-olefin copolymers formed in the presence of tightly-bridged metallocene catalyst, organoaluminum cocatalyst, and a chemically-treated solid oxide, and optionally in the presence of additional cocatalysts. The resins and films prepared from these polymers exhibit high haze values, low clarity values, and a low coefficient of friction.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: August 22, 2006
    Assignee: Chevron Phillips Chemical Company, L.P.
    Inventors: Ashish M. Sukhadia, Jerry D. Stark, Max P. McDaniel, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Rajendra K. Krishnaswamy
  • Synthesis of -metallocenes and their parent ligands in high yield
    Patent number: 7064225
    Abstract: The present invention provides a method of making compounds comprising linked cyclopentadienyl and fluorenyl groups, including substituted analogs thereof, which are precursors to ansa-metallocenes comprising bridged cyclopentadienyl and fluorenyl ligands. In one aspect, this invention provides a preparative method for (5-cyclopentadienyl)[5-(2,7-di-tert-butylfluorenyl)]hex-1-ene, and ansa-metallocenes comprising this ligand.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: June 20, 2006
    Assignee: Chevron Phillips Chemical Company, L.P.
    Inventors: Matthew G. Thorn, Joel L. Martin, Qing Yang, Albert P. Masino
  • Organometal catalyst compositions
    Patent number: 7041753
    Abstract: This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and an oxide matrix composition. Processes for producing the oxide matrix composition and the catalyst composition are also provided.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: May 9, 2006
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Joseph S. Shveima, James L. Smith, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley