Patents Assigned to ExxonMobil Chemicals Patent Inc.
  • Films and methods of making the same
    Patent number: 11220092
    Abstract: Disclosed are films including polypropylene impact copolymers for tarpaulin applications which can provide a combination of desired properties.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: January 11, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Saifudin M. Abubakar, Jieyu Jin, Yinjie Zhang, Yanan Gong
  • Dehydrogenation catalysts and methods of making and using the same
    Patent number: 11213804
    Abstract: Disclosed herein are methods of preparing dehydrogenation catalysts using non-halogen containing metal sources. The methods generally comprise the steps of providing a first solution comprising anions of a first metal selected from Group 14 of the Periodic Table of Elements, and impregnating an inorganic support with the first solution to obtain a first impregnated inorganic support, wherein the first solution has a pH value of less than the isoelectric point of the inorganic support. The dehydrogenation catalysts prepared in accordance with the methods of the present disclosure are typically free or substantially free of halogen species. Such catalysts may be particularly useful in the dehydrogenation of a feed comprising cyclohexane and/or methylcyclopentane.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Doron Levin
  • Fibers and nonwoven materials prepared therefrom
    Patent number: 11214036
    Abstract: Described herein are fibers, nonwoven fabrics, and other nonwoven articles comprising a blend of at least one propylene-based elastomer and a broad molecular weight polypropylene or a broad molecular weight impact copolymer. The broad molecular weight polypropylene has a molecular weight distribution (MWD) of greater than 4.5. The impact copolymer is a reactor blend and comprises a propylene homopolymer component and a copolymer component, where the propylene homopolymer component has a molecular weight distribution (MWD) of greater than 4.5.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Vincent B. Gallez, Galen C. Richeson, Prasadarao Meka, John W. M. Roberts
  • Polymer blends and articles made therefrom
    Patent number: 11214659
    Abstract: Polymer compositions including (A) 15.0 to 90.0 wt % of a heterogeneously branched ethylene polymer having polymer units derived from at least one C3-C20 alpha-olefin and having a CBDI<50.0%; and (B) 85.0 to 10.0 wt. % of an ethylene-based polymer and films made therefrom are disclosed.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Zhenyu Zhu, Jianya Cheng
  • Lewis base catalysts and methods thereof
    Patent number: 11214634
    Abstract: The present disclosure relates to Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the Lewis base catalysts can be stable at high polymerization temperatures and have good activity at the high polymerization temperatures. The stable catalysts with good activity can provide formation of polymers having high melting points, high isotacticity, and controllable molecular weights, and the ability to make an increased amount of polymer in a given reactor, as compared to conventional catalysts. Hence, the present disclosure demonstrates highly active catalysts capable of operating at high reactor temperatures while producing polymers with controlled molecular weights and or robust isotacticity.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Georgy P. Goryunov, Oleg V. Samsonov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, Jo Ann M. Canich, John R. Hagadorn
  • Metallocene catalyst feed system for solution polymerization process
    Patent number: 11213798
    Abstract: Methods and systems for solution polymerization. The method can include forming a first mixture stream consisting essentially of at least one catalyst and a process solvent, and forming a second mixture stream consisting essentially of at least one activator and the process solvent. The first mixture stream and the second mixture stream can be fed separately to at least one reaction zone comprising one or more monomers dissolved in the process solvent where the at least one monomers can be polymerized within the at least one reaction zone in the presence of the catalyst, activator and process solvent to produce a polymer product.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Vetkav R. Eswaran, Jay L. Reimers, Keith C. Gallow
  • (Di)silicon bridged metallocenes that produce polyethylene with broad molecular weight distribution and high molecular weight
    Patent number: 11214631
    Abstract: This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the present disclosure provides for polyolefins and a process for producing a polyolefin composition comprising contacting at least one olefin with a catalyst system.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: January 4, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jian Yang, Gregory J. Karahalis, Timothy M. Boller, Yan Jiang
  • Removal of unreacted monomers and other materials from polyolefin product particles
    Patent number: 11208506
    Abstract: A method for the removal of unreacted olefin monomer(s) from polyolefin product particles of an olefin polymerization reaction, the method including: contacting the polyolefin product particles with a countercurrent flow of a purge gas in a purge vessel under conditions allowing diffusion of unreacted monomer and other gaseous substances from the polyolefin product particles into the countercurrent flow of the purge gas to produce purged particles; wherein the velocity of the purge gas exceeds 50% of the calculated minimum fluidization velocity of the polyolefin product particles in the purge vessel (Umf), is provided.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: December 28, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael G. Tribo, David J. Sandell
  • Process for producing polyethylene polymers
    Patent number: 11208513
    Abstract: A process for producing polyethylene polymers including contacting ethylene and at least one C3 to C8 alpha-olefin comonomer with a polymerization catalyst on a particulate support in a fluidized bed polymerization reactor under conditions effective to polymerize at least part of the ethylene and comonomer and produce the polyethylene polymers, wherein the support has a d10 particle size as measured by laser diffraction of at least 18 microns, is provided.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: December 28, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Corrine L. Brandl, William A. Lamberti, Charles R. Buhler, Judson S. Clements, Harry W. Deckman, Joseph Moebus, Marc L. DeChellis
  • Catalyst and its use in dehydrocyclization processes
    Patent number: 11203557
    Abstract: The invention relates to catalysts and their use in processes for dehydrocyclization of light paraffinic hydrocarbon feedstock to higher-value hydrocarbon, such as aromatic hydrocarbon, to dehydrocyclization catalysts useful in such processes, and to the methods of making such catalysts. One of more of the dehydrocyclization catalysts comprising a crystalline aluminosilicate zeolite having a constraint index of less than or equal to about 12, at least one Group 3 to Group 13 metal of the IUPAC Periodic Table and phosphorous.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: December 21, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Samia Ilias, Mayank Shekhar, Paul F. Keusenkothen, John S. Buchanan
  • Bis(aryl phenolate) lewis base catalysts and methods thereof
    Patent number: 11203654
    Abstract: The present disclosure relates to bis(aryl phenolate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization as the bis(aryl phenolate) Lewis base catalysts are stable at high polymerization temperatures and have good activity at the high polymerization temperatures. The stable catalysts with good activity can provide formation of polymers having high molecular weights and the ability to make an increased amount of polymer in a given reactor, as compared to conventional catalysts. Hence, the present disclosure demonstrates highly active catalysts capable of operating at high reactor temperatures while producing polymers with controlled molecular weights and or robust isotacticity.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: December 21, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Georgy P. Goryunov, Vladislav A. Popov, Dmitry V. Uborsky, Alexander Z. Voskoboynikov, John R. Hagadorn, Irene C. Cai, Hua Zhou, Jo Ann M. Canich
  • Production of methyl-substituted biphenyl compounds
    Patent number: 11198660
    Abstract: In a process for producing a methyl-substituted biphenyl compound, at least one methyl-substituted cyclohexylbenzene compound of the formula: wherein each of m and n is independently 1, 2, or 3, is contacted with hydrogen in the presence of a hydrogenation catalyst to produce a hydrogenation reaction product comprising at least one methyl-substituted bicyclohexane compound, and the methyl-substituted bicyclohexane compound is then contacted with a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising at least one methyl-substituted biphenyl compound.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: December 14, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. Decaul, Michael P. Lanci, Wei Tang
  • Catalyst systems including two hafnocene catalyst compounds
    Patent number: 11198747
    Abstract: The present disclosure relates to dual catalyst systems and processes for use thereof. The present disclosure further provides a catalyst system that is a combination of at least two hafnium metallocene catalyst compounds. The catalyst systems may be used for olefin polymerization processes. The present disclosure further provides for polymers, which can be formed by processes and catalyst systems of the present disclosure.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 14, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Laughlin G. McCullough, Kevin A. Stevens, Subramaniam Kuppuswamy, Matthew S. Bedoya
  • Processes for converting aromatic hydrocarbons via alkyl-demethylation
    Patent number: 11198659
    Abstract: Alkyl-demethylation of C2+-hydrocarbyl substituted aromatic hydrocarbons can be utilized to treat one or more of a heavy naphtha reformate stream, a hydrotreated SCN stream, a C8 aromatic hydrocarbon isomerization feed stream, a C9+ aromatic hydrocarbon transalkylation feed stream, and similar hydrocarbon streams to produce additional quantity of xylene products.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: December 14, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hari Nair, Meha Rungta, Michel Molinier, Doron Levin, Scott J. Weigel, Michael Salciccioli, John F. Brody
  • Poly(alpha-olefin)s and methods thereof
    Patent number: 11198745
    Abstract: The present disclosure relates to poly(alpha-olefin)s and methods for making poly(alpha-olefin)s. A poly(alpha-olefin) may include about 95 wt % or greater C10-C18 alpha-olefin content and have a weight average molecular weight of from about 1,000,000 g/mol to about 10,000,000 g/mol. A method for forming a poly(alpha-olefin) may include introducing one or more C10-C18 alpha-olefins to a catalyst system comprising a catalyst compound and an activator. The method may include obtaining poly(alpha-olefin)s comprising about 95 wt % or greater C10-C18 alpha-olefin content and having a weight average molecular weight of from about 1,000,000 g/mol to about 10,000,000 g/mol.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: December 14, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Carlos R. Lopez-Barron, Andy H. Tsou, John R. Hagadorn, Sarah J. Mattler
  • Methods for making polyolefin polymer compositions
    Patent number: 11193008
    Abstract: A method for increasing the melt strength of a polyolefin polymer composition is provided. The method includes mixing a first polyolefin composition derived from at least one olefin polymerization catalyst (a) and at least one olefin polymerization catalyst (b) with a second polyolefin composition derived from the at least one olefin polymerization catalyst (b) or from at least one olefin polymerization catalyst (c), and obtaining the polyolefin polymer composition.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 7, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ching-Tai Lue, Mark K. Davis, Wesley R. Mariott, Daniel P. Zilker, Phuong A. Cao
  • Production of heterophasic polymers in gas or slurry phase
    Patent number: 11192961
    Abstract: Methods for the production of heterophasic polymers in gas and slurry phase polymerization processes, and polymer compositions made therefrom, are disclosed herein.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: December 7, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Jeanette M. Diop, Jian Yang, Sudhin Datta, Patrick Brant
  • Polyoxometalates comprising noble metals and carboxylate-based capping groups and metal-clusters thereof
    Patent number: 11192835
    Abstract: The invention relates to polyoxometalates represented by the formula (An)m+[M?M12Oy(RCOO)zHq]m? or solvates thereof, corresponding supported polyoxometalates, and processes for their preparation, as well as corresponding metal clusters, optionally in the form of a dispersion in a liquid carrier medium or immobilized on a solid support, and processes for their preparation, as well as their use in reductive conversion of organic substrate.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: December 7, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Tian Ma, Peng Yang, Wassim W. Ayass, Zhengguo Lin, Ulrich Kortz
  • Polymerization process
    Patent number: 11192970
    Abstract: A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including propane and isobutane under polymerizable conditions to produce a polyolefin polymer is provided.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: December 7, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Richard B. Pannell
  • Thermoplastic vulcanizates for foaming applications
    Patent number: 11192992
    Abstract: The present disclosure relates to TPV compositions suitable for foaming, as well as foamed TPV compositions, methods of making the foregoing, and applications of various foamed TPV compositions. The TPV compositions comprise an at least partially vulcanized rubber component dispersed within a thermoplastic component comprising a thermoplastic resin and a propylene-based elastomer, oil, and optionally one or more additives. According to some aspects, the TPV composition may be made in part by preloading some portion of process oil prior to addition of the curative. TPV compositions provided herein are particularly suitable for foaming with thermo-expandable microsphere foaming agents.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 7, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Oscar O. Chung, Hui Hui Long, Porter C. Shannon, Toshiaki Yamaguchi, Weiqian Zhang