Patents by Inventor Crisita Carmen H. Atienza

Crisita Carmen H. Atienza 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: 10000593
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 19, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Patent number: 9994658
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 12, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Machteld M. W. Mertens, Gerardo J. Majano Sanchez, Rohan A. Hule
  • Patent number: 9994657
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 12, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Michelle E. Titone, Machteld M. W. Mertens, Gerardo J. Majano Sanchez
  • Patent number: 9982076
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: May 29, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Patent number: 9975973
    Abstract: Catalyst compounds and catalyst systems including an asymmetric Salan ligands having a fluorenyl moiety are disclosed. Methods of preparing such catalyst compounds and catalyst systems, polymerization processes using such catalysts systems and olefin polymers prepared according to such processes using the catalysts systems are described.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: May 22, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Meagan E. Evans
  • Publication number: 20180057513
    Abstract: Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula: wherein M is a Group 4 metal; each of X1 and X2 is a univalent group, such as halogen or benzyl; each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, hydrogen, a substituted or unsubstituted C1-C40 hydrocarbyl radical, etc.; and R13 is a divalent C1-C20 hydrocarbyl radical or divalent substituted C1-C20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N1 and N2.
    Type: Application
    Filed: August 1, 2017
    Publication date: March 1, 2018
    Inventors: David A. Cano, Crisita Carmen H. Atienza
  • Publication number: 20180030167
    Abstract: Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Application
    Filed: July 7, 2017
    Publication date: February 1, 2018
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Catherine A. Faler, Kevin P. Ramirez
  • Patent number: 9796795
    Abstract: This invention relates to a compound represented by the formula: TyCp?mMGnXq wherein: Cp? is a tetrahydroindacenyl group which may be substituted or unsubstituted, provided that when Cp? is tetrahydro-s-indacenyl: 1) the 3 and/or 4 positions are not aryl or substituted aryl, 2) the 3 position is not directly bonded to a group 15 or 16 heteroatom, 3) there are no additional rings fused to the tetrahydroindacenyl ligand, 4) T is not bonded to the 2-position, and 5) the 5, 6, or 7-position is geminally disubstituted; M is a group 3, 4, 5, or 6 transition metal; G is a heteroatom group represented by the formula JRiz where J is N, P, O or S, Ri is a C1 to C20 hydrocarbyl group, and z is 1 or 2; T is a bridging group; y is 0 or 1; X is a leaving group; m=1; n=1, 2 or 3; q=1, 2 or 3, and the sum of m+n+q is equal to the oxidation state of the transition metal.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 24, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, Crisita Carmen H. Atienza, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Patent number: 9782763
    Abstract: Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 10, 2017
    Assignees: MOMENTIVE PERFORMANCE MATERIALS INC., PRINCETON UNIVERSITY
    Inventors: Keith James Weller, Crisita Carmen H. Atienza, Julie Boyer, Paul Chirik, Johannes G. P. Delis, Kenrick Lewis, Susan A. Nye
  • Patent number: 9745327
    Abstract: Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 29, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, David A. Cano, John R. Hagadorn, Rhutesh K. Shah
  • Publication number: 20170096510
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Publication number: 20170096508
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Publication number: 20170096507
    Abstract: Catalyst compounds and catalyst systems including an asymmetric Salan ligands having a fluorenyl moiety are disclosed. Methods of preparing such catalyst compounds and catalyst systems, polymerization processes using such catalysts systems and olefin polymers prepared according to such processes using the catalysts systems are described.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Meagan E. Evans
  • Publication number: 20170096511
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Machteld M. W. Mertens, Gerardo J. Majano Sanchez, Rohan A. Hule
  • Publication number: 20170096509
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Michelle E. Titone, Machteld M. W. Mertens, Gerardo J. Majano Sanchez
  • Patent number: 9611348
    Abstract: An ethylene copolymer, a Group 4 transition metal catalyst compound, and methods for polymerization using such a compound, said compound represented by the formula: (L)p(R?)zT(Cp)(A)MX2, where M is a Group 4 metal; z is 0 to 8; p is 1 to 3; X is an anionic leaving group; T is a bridging group; R1 to R4 are hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, aryl group, substituted aryl group, or a heteroatom-containing group (where adjacent R groups can form rings); R? is hydrogen, a C1 to C10 alkyl group, a C6 to C24 aryl group, or a C7 to C40 alkylaryl group; and L is a heteroatom or heteroatom-containing group bound to T, Cp is a cyclopentadienyl ring substituted with 0 to 4 substituent groups (where adjacent groups can form C4 to C20 rings); A is Cp or (JS?z*-1-y), where J is a Group 15 or 16 element; S? is a hydrocarbyl, substituted hydrocarbyl, or heteroatom; z* is 2 or 3, and y is 0 or 1, is provided.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 4, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ian C. Stewart, Steven D. Brown, Crisita Carmen H. Atienza, David T. Harris, Aaron M. Hollas
  • Publication number: 20160280722
    Abstract: Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Application
    Filed: February 23, 2016
    Publication date: September 29, 2016
    Inventors: Crisita Carmen H. Atienza, David A. Cano, John R. Hagadorn, Rhutesh K. Shah
  • Publication number: 20160244535
    Abstract: This invention relates to a compound represented by the formula: TyCp?mMGnXq wherein: Cp? is a tetrahydroindacenyl group which may be substituted or unsubstituted, provided that when Cp? is tetrahydro-s-indecenyl: 1) the 3 and/or 4 positions are not aryl or substituted aryl, 2) the 3 position is not directly bonded to a group 15 or 16 heteroatom, 3) there are no additional rings fused to the tetrahydroindacenyl ligand, 4) T is not bonded to the 2-position, and 5) the 5, 6, or 7-position is geminally disubstituted; M is a group 3, 4, 5, or 6 transition metal; G is a heteroatom group represented by the formula JRiz where J is N, P, O or S, Ri is a C1 to C20 hydrocarbyl group, and z is 1 or 2; T is a bridging group; y is 0 or 1; X is a leaving group; m=1; n=1, 2 or 3; q=1, 2 or 3, and the sum of m+n+q is equal to the oxidation state of the transition metal.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Jo Ann M. Canich, Crisita Carmen H. Atienza, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Alexander Z. Voskoboynikov
  • Publication number: 20140316085
    Abstract: An ethylene copolymer, a Group 4 transition metal catalyst compound, and methods for polymerization using such a compound, said compound represented by the formula: (L)p(R?)zT(Cp)(A)MX2, where M is a Group 4 metal; z is 0 to 8; p is 1 to 3; X is an anionic leaving group; T is a bridging group; R1 to R4 are hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, aryl group, substituted aryl group, or a heteroatom-containing group (where adjacent R groups can form rings); R? is hydrogen, a C1 to C10 alkyl group, a C6 to C24 aryl group, or a C7 to C40 alkylaryl group; and L is a heteroatom or heteroatom-containing group bound to T, Cp is a cyclopentadienyl ring substituted with 0 to 4 substituent groups (where adjacent groups can form C4 to C20 rings); A is Cp or (JS?z*-1-y), where J is a Group 15 or 16 element; S? is a hydrocarbyl, substituted hydrocarbyl, or heteroatom; z* is 2 or 3, and y is 0 or 1, is provided.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 23, 2014
    Inventors: Ian C. Stewart, Steven D. Brown, Crisita Carmen H. Atienza, David T. Harris, Aaron M. Hollas
  • Publication number: 20130158281
    Abstract: Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicants: Princeton University, Momentive Performance Materials Inc.
    Inventors: Keith James Weller, Crisita Carmen H. Atienza, Julie Boyer, Paul Chirik, Johannes G.P. Delis, Kenrick Lewis, Susan A. Nye