Patents by Inventor Mark F. Teasley

Mark F. Teasley 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).

  • PROCESS FOR THE PREPARATION OF ARYLENE FLUORINATED SULFONIMIDE POLYMERS AND MEMBRANES
    Publication number: 20080214732
    Abstract: Aromatic sulfonimide ionene polymers useful as membranes in electrochemical cells are prepared.
    Type: Application
    Filed: October 1, 2007
    Publication date: September 4, 2008
    Inventor: Mark F. TEASLEY
  • ARYLENE FLUORINATED SULFONIMIDE COMPOSITIONS
    Publication number: 20080177088
    Abstract: Described herein are aromatic sulfonimide compositions that can be used to prepare polymers useful as membranes in electrochemical cells.
    Type: Application
    Filed: October 1, 2007
    Publication date: July 24, 2008
    Inventor: MARK F. TEASLEY
  • Flash spinning polycyclopentene
    Publication number: 20040032041
    Abstract: A process for flash spinning polycyclopentene that has a number average molecular weight of at least 10,000 to 100,000 and an end of melting range of 250 to 330 ° C. in a spin agent of 6 to 9 carbon cycloalkanes, 6 to 9 carbon alkyl-substituted cycloalkanes and alkyl-substituted aromatic hydrocarbons and all having atmospheric boiling points less than 150 ° C.
    Type: Application
    Filed: September 2, 2003
    Publication date: February 19, 2004
    Inventors: Hyunkook Shin, Mark F. Teasley
  • Polymers of substituted cyclopentenes
    Patent number: 6670433
    Abstract: 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: Grant
    Filed: April 2, 2001
    Date of Patent: December 30, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
  • Polymers of substituted cyclopentenes
    Publication number: 20030055186
    Abstract: 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: Application
    Filed: April 2, 2001
    Publication date: March 20, 2003
    Inventors: Stephan J. McLain, Elizabeth F. McCord, Alison M. Bennett, Steven D. Ittel, Mark F. Teasley
  • Polymerization process
    Patent number: 6521724
    Abstract: Processes for the polymerization of olefins in which late transition metal complexes, such as nickel, iron, cobalt and palladium complexes, are used as a polymerization catalyst have improved polymer productivity when oxidizing agents are present during at least a portion of the polymerization. The polymers produced are useful as elastomers, for packaging films, and molding resins.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: February 18, 2003
    Assignees: E. I. du Pont de Nemours and Company, Basell Technology Company B.V.
    Inventors: Samuel David Arthur, Mark F. Teasley, Dewey Lynn Kerbow, Ofelia Fusco, Tiziano Dall 'Occo, Giampiero Morini
  • Chain transfer agents for olefin polymerization
    Patent number: 6380327
    Abstract: 1,4-Cyclohexadienes and triarylmethanes are chain transfer agents for certain late transition metal complex catalyzed polymerizations of olefins.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: April 30, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mark F Teasley
  • Polymerization process
    Publication number: 20010044510
    Abstract: Processes for the polymerization of olefins in which late transition metal complexes, such as nickel, iron, cobalt and palladium complexes, are used as a polymerization catalyst have improved polymer productivity when oxidizing agents are present during at least a portion of the polymerization. The polymers produced are useful as elastomers, for packaging films, and molding resins.
    Type: Application
    Filed: March 7, 2001
    Publication date: November 22, 2001
    Inventors: Samuel David Arthur, Mark F. Teasley, Dewey Lynn Kerbow, Ofelia Fusco, Tiziano Dall' Occo, Giampiero Morini
  • Polymerization of olefins
    Patent number: 6306986
    Abstract: Certain alkylhaloaluminoxanes and other alkylhaloaluminum compounds, when used as cocatalysts for the polymerization of olefins with complexes of transition metals and neutral bidentate ligands give good yields of polyolefin when using less of the alkylhaloaluminoxane than other types of aluminum compounds.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mark F Teasley
  • Polymers of substituted cyclopentenes
    Patent number: 6258908
    Abstract: 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: Grant
    Filed: March 26, 1999
    Date of Patent: July 10, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
  • Process for modifying aliphatic polyamides with polyurea
    Patent number: 5977267
    Abstract: The end groups of an aliphatic polyamide may be changed by reacting a polyurea with a molten aliphatic polyamide at temperatures of about 260.degree. C. or more. Carboxyl end groups are controllably converted to amine end groups. This is especially useful for controlling the dyeability of fibers spun from such aliphatic polyamides.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: November 2, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mark F. Teasley
  • Melt-processible aromatic polyamide from N,N'-isophthaloyl bis lactam
    Patent number: 5136016
    Abstract: Melt-processible aromatic polyamides are obtained by reacting certain N,N'-isophthaloyl bis(lactam) compounds with certain aromatic diamines.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: August 4, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gurdial Singh, Andrew J. Sitter, Beth E. Dunlap, Mark F. Teasley
  • Recovery and melt extrusion of aromatic/aliphatic copolyamides from lactam-plasticized polymer
    Patent number: 5066445
    Abstract: Aromatic/Aliphatic copolyamides are recovered from lactam-plasticized polymer then melted and extruded to form shaped structures.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: November 19, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Beth E. Dunlap, Fulton F. Rogers, Jr., Mark F. Teasley