Patents by Inventor Stephen Zushma

Stephen Zushma 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).

  • Publication number: 20080242895
    Abstract: The invention relates to polyketone compounds and the at least partially hydrogenated products thereof, the use of said polyketone compounds and/or the at least partially hydrogenated products thereof as plasticizers, processes of making polyketone compounds and the at least partially hydrogenated products thereof, compositions comprising the polyketone compounds and/or the at least partially hydrogenated products thereof, and to articles formed from products of the invention.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Inventors: Allen D. Godwin, Kenneth J. Buturla, Karla S. Colle, Gabor Kiss, Kirk C. Nadler, Abhimanyu O. Patil, Edris Eileen Pike, Ramzi Y. Saleh, Jon E. Stanat, Manika Varma-Nair, Stephen Zushma
  • Patent number: 7429684
    Abstract: A process for preparing ?-olefins from ethylene wherein the ?-olefins are substantially free of olefins having greater than 12 carbon atoms comprises contacting ethylene under oligomerization conditions with a 2,6-bis(phenylimino) pyridyl metal halide catalyst in which the metal is Fe, Ni, Co or Pd.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: September 30, 2008
    Assignee: ExxonMobile Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Stephen Zushma
  • Publication number: 20080015314
    Abstract: Disclosed is a selected type of copolymer composition comprising copolymers having units derived from ethylene and dicyclopentadiene (DCPD) co-monomers. Such copolymer compositions: a) have a DCPD-derived comonomer unit content of from about 25 mole % to about 45 mole %; b) have a Weight Average Molecular Weight, Mw, of greater than about 170,000; c) comprise amorphous material and have glass transition temperatures, Tg, of from about 8° C. to about 129° C., which also fit the equation Tg (in ° C.)?[(mole % DCPD×3.142)?4.67]; and d) comprise no significant amount of crystalline polyethylene homopolymer or crystallizable polyethylene segments within the ethylene-dicylopentadiene copolymers. Such copolymers can be readily derivatized by hydrogention and/or epoxidation to provide polymeric materials suitable for use as engineering thermoplastics. Also disclosed are processes for preparing and optionally further derivatizing ethylene/dicyclopentadiene copolymers having the characteristics hereinbefore described.
    Type: Application
    Filed: May 10, 2007
    Publication date: January 17, 2008
    Inventors: Lisa Saunders Baugh, Abhimanyu Onkar Patil, Christian Peter Mehnert, Kevin R. Squire, Kenneth A. Cook, Caiguo Gong, Enock Berluche, Karla Schall Colle, Alan J. Oshinski, Stephen Zushma, Beverly J. Poole
  • Publication number: 20050192470
    Abstract: A process for preparing ?-olefins from ethylene wherein the ?-olefins are substantially free of olefins having greater than 12 carbon atoms comprises contacting ethylene under oligomerization conditions with a 2,6-bis(phenylimino) pyridyl metal halide catalyst in which the metal is Fe, Ni, Co or Pd.
    Type: Application
    Filed: January 18, 2005
    Publication date: September 1, 2005
    Inventors: Abhimanyu Patil, Stephen Zushma
  • Patent number: 6881806
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: April 19, 2005
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Patent number: 6864319
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: March 8, 2005
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Patent number: 6864334
    Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: March 8, 2005
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa Saunders Baugh, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
  • Publication number: 20050004334
    Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 6, 2005
    Inventors: Lisa Boffa, Abhimanyu Patil, Donald Schulz, Robert Stibrany, Joseph Sissano, Stephen Zushma
  • Publication number: 20040254067
    Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 16, 2004
    Inventors: Lisa Saunders Boffa, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
  • Patent number: 6809058
    Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: October 26, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa Saunders Boffa, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
  • Publication number: 20040167307
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Application
    Filed: February 27, 2004
    Publication date: August 26, 2004
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Publication number: 20040167306
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Application
    Filed: February 27, 2004
    Publication date: August 26, 2004
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Patent number: 6777584
    Abstract: A process for producing a linear &agr;-olefin which comprises: reacting a stoichiometric excess of a terminal Cn olefin with ethylene in the presence of an organometallic catalyst to produce a Cn+2 linear &agr;-olefin, wherein the catalyst is capable of producing a Schulz-Flory distribution of the linear &agr;-olefin with a Schulz-Flory constant of less than about 0.8 and wherein n is an integer between about 3 to 20.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: August 17, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Stephen Zushma, Timothy Daniel Shaffer
  • Patent number: 6777514
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 17, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Patent number: 6743960
    Abstract: The present invention is related to a method for oligomerizing olefinic monomers under oligomerization conditions to form higher olefins. The novel method comprises contacting a feed comprising the olefinic monomers with a catalyst composition comprising the reaction product of: (a) a compound having a formula selected from the group consisting of M[S2C2(RaRb)]2 and M[S2C6(R1R2R3R4)]2, wherein M is a late transition metal, Ra, Rb, R1, R2, R3 and R4 are independently selected and may be the same or different and are selected from hydrogen, electron-withdrawing groups and unsubstituted and substituted hydrocarbyl groups; and (b) an activating cocatalyst. The improved method advantageously relates to oligomerizing olefinic monomers from feed streams having contaminants, especially sulfur-containing contaminants.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: June 1, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kun Wang, Edward Ira Stiefel, Abhimanyu Onkar Patil, Stephen Zushma
  • Patent number: 6730757
    Abstract: The inventions disclosed herein are catalyst systems comprising a complex having one of the formulas LMX1X2 and LML′ and an activating cocatalyst, and use of the catalyst system in polymerizing olefinic monomers. In either of the foregoing formulas, L is a chelating ligand containing sulfur donors; M is a transition metal selected from either copper, silver, gold, manganese, iron, cobalt, palladium or nickel; X1 and X2 are independently selected from either halides, hydride, triflate, acetate, borate, alkyl, alkoxyl, cycloalkyl, cycloalkoxyl, aryl, thiolate, carbon monoxide, cyanate or olefins; and L′ is a bidentate ligand selected from either dithiolene, dithiolate, diphosphine, bisimine, bispyridine, phenanthroline, oxolate, catecholate, thiolatoamide, thiolatoimine or thiolatophosphine.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: May 4, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kun Wang, Abhimanyu Onkar Patil, Stephen Zushma, Ernestine Williams Hill, Edward Ira Stiefel
  • Publication number: 20040044159
    Abstract: The invention is related to a geminally disubstituted olefin-carbon monoxide-ethylene polymer. The invention is also related to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed and an ethylene feed under free radical polymerization conditions. The invention is further related to a geminally disubstituted olefin-carbon monoxide-ethylene-X polymer, where monomer X is a free radical polymerizable monomer. The invention is also directed to a method for preparing geminally disubstituted olefin-carbon monoxide-ethylene-X polymers by reacting a geminally disubstituted olefin feed, a carbon monoxide feed, an ethylene feed and a feed containing monomer X under free radical polymerization conditions. The polymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Inventors: Abhimanyu O. Patil, Nicholas V. Smith, Jose G. Santiesteban, Allen D. Godwin, Steven P. Rucker, Stephen Zushma
  • Patent number: 6689928
    Abstract: The invention is a method and catalyst for selectively and efficiently producing short chain linear &agr;-olefins. The method includes contacting olefinic monomers under oligomerization conditions with the catalyst composition which comprises a composition prepared in situ by reacting a nickel compound selected from the group consisting of halides, hydrides, triflates, acetates, borates, C1, through C12 alkyl, C1 through C12 alkoxy, C3 through C12 cycloalkyl, C3 through C12 cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins including diolefins and cycloolefins, and any other moiety into which a monomer can insert and mixtures thereof, with an amine ligand wherein said ligand is a nitrogen-containing ligand having one or more nitrogen atoms.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: February 10, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Robert Timothy Stibrany, Michael Gerard Matturro, Stephen Zushma, Abhimanyu Onkar Patil
  • Publication number: 20030171209
    Abstract: The inventions disclosed herein are catalyst systems comprising a complex having one of the formulas LMX1X2 and LML′ and an activating cocatalyst, and use of the catalyst system in polymerizing olefinic monomers. In either of the foregoing formulas, L is a chelating ligand containing sulfur donors; M is a transition metal selected from either copper, silver, gold, manganese, iron, cobalt, palladium or nickel; X1 and X2 are independently selected from either halides, hydride, triflate, acetate, borate, alkyl, alkoxyl, cycloalkyl, cycloalkoxyl, aryl, thiolate, carbon monoxide, cyanate or olefins; and L′ is a bidentate ligand selected from either dithiolene, dithiolate, diphosphine, bisimine, bispyridine, phenanthroline, oxolate, catecholate, thiolatoamide, thiolatoimine or thiolatophosphine.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 11, 2003
    Inventors: Kun Wang, Abhimanyu Onkar Patil, Stephen Zushma, Ernestine Williams Hill, Edward Ira Stiefel
  • Publication number: 20030166985
    Abstract: A process for producing a linear &agr;-olefin which comprises: reacting a stoichiometric excess of a terminal Cn olefin with ethylene in the presence of an organometallic catalyst to produce a Cn+2 linear &agr;-olefin, wherein the catalyst is capable of producing a Schulz-Flory distribution of the linear &agr;-olefin with a Schulz-Flory constant of less than about 0.8 and wherein n is an integer between about 3 to 20.
    Type: Application
    Filed: February 22, 2002
    Publication date: September 4, 2003
    Inventors: Abhimayu Onkar Patil, Stephen Zushma, Timothy Daniel Shaffer