Patents by Inventor Onkar Patil

Onkar Patil 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).

  • 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: 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
  • 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: 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
  • 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
  • Patent number: 6677279
    Abstract: The invention relates to a variety of uses for novel carbon monoxide containing polymers. More specifically, the invention employs the use of low molecular weight polymers containing carbon monoxide for use as adhesive additives and as fluids (e.g., solvents and synthetic base stocks).
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: January 13, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Michael Gerard Matturro, Richard Henry Schlosberg
  • 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: 20030166479
    Abstract: The invention relates to a variety of uses for novel carbon monoxide containing polymers. More specifically, the invention employs the use of low molecular weight polymers containing carbon monoxide for use as adhesive additives and as fluids (e.g., solvents and synthetic base stocks).
    Type: Application
    Filed: February 7, 2003
    Publication date: September 4, 2003
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Michael Gerard Matturro, Richard Henry Schlosberg
  • 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
  • Publication number: 20030105374
    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: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventors: Kun Wang, Edward Ira Stiefel, Abhimanyu Onkar Patil, Stephen Zushma
  • Patent number: 6573226
    Abstract: The invention relates to a variety of uses for novel carbon monoxide containing polymers. More specifically, the invention employs the use of low molecular weight polymers containing carbon monoxide for use as adhesive additives and as fluids (e.g., solvents and synthetic base stocks).
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 3, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Michael Gerard Matturro, Richard Henry Schlosberg
  • Publication number: 20030069128
    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: August 28, 2001
    Publication date: April 10, 2003
    Inventors: Lisa Saunder Boffa, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
  • Patent number: 6501000
    Abstract: The invention is directed towards a composition comprising the formula LMX(X′)n wherein n equals 0 or 1; X and X′ are independently selected from the group consisting of halides, hydride, triflate, acetates, borates, C1 through C12 alkyl, C1 through C12 alkoxy, C3 through C12 cycloalkyl, C3 through C12 cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert; M is selected from the group consisting of nickel, palladium, and platinum and L is a nitrogen-containing bidentate ligand with more than two nitrogen atoms. The composition possesses a tetrahedral or pseudo-tetrahedral structure. The invention also provides a method for using the composition in conjunction with an activating cocatalyst to form short chain &agr;-olefins.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: December 31, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Robert Timothy Stibrany, Michael Gerard Matturro, Stephen Zushma, Abhimanyu Onkar Patil
  • Patent number: 6444784
    Abstract: The invention relates to a copolymer composition useful as wax crystal modifiers and flow improvers. The compositions are copolymers of a C6 to C250 straight-chain or branched dialkyl filmarate and at least one compound selected from the group consisting of carbon monoxide, C3 to C30 &agr;-olefin, ethylene, styrene, and vinyl acetate.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: September 3, 2002
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Abhimanyu Onkar Patil, Stephen Zushma, Enock Berluche, Manika Varma-Nair
  • Publication number: 20020045790
    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: Application
    Filed: September 25, 2001
    Publication date: April 18, 2002
    Inventors: Robert Timothy Stibrany, Michael Gerard Matturro, Stephen Zushma, Abhimanyu Onkar Patil
  • Publication number: 20020042475
    Abstract: The invention is directed towards a PVC resin composition comprising polyvinyl chloride and a plasticizer selected from the group consisting of: a non-linear, paraffin-soluble olefin-CO copolymer; ii) a non-linear olefin-CO copolymer derived from non-pure feeds; iii) an olefin-CO-X terpolymer derived from non-pure feeds; and iv) a non-linear CO-X terpolymer. A method of preparing the resins is also described.
    Type: Application
    Filed: June 15, 2001
    Publication date: April 11, 2002
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Manika Varma-Nair, David John Lohse, Christine Ann Costello, Richard Henry Schlosberg, Michael Gerard Matturro
  • Publication number: 20020040123
    Abstract: The invention relates to a copolymer composition useful as wax crystal modifiers and flow improvers. The compositions are copolymers of a C6 to C250 straight-chain or branched dialkyl fumarate and at least one compound selected from the group consisting of carbon monoxide, C3 to C30 &agr;-olefin, ethylene, styrene, and vinyl acetate.
    Type: Application
    Filed: May 29, 1998
    Publication date: April 4, 2002
    Inventors: ABHIMANYU ONKAR PATIL, STEPHEN ZUSHMA, ENOCK BERLUCHE, MANIKA VARMA-NAIR
  • Publication number: 20020028752
    Abstract: The invention relates to a variety of uses for novel carbon monoxide containing polymers. More specifically, the invention employs the use of low molecular weight polymers containing carbon monoxide for use as adhesive additives and as fluids (e.g., solvents and synthetic base stocks).
    Type: Application
    Filed: June 18, 2001
    Publication date: March 7, 2002
    Inventors: Abhimanyu Onkar Patil, Donald Norman Schulz, Michael Gerard Matturro, Richard Henry Schlosberg