Patents Assigned to ExxonMobil Chemical Patents Inc.
  • Patent number: 10710945
    Abstract: Aromatic compositions useful in various applications, such as aromatic fluid solvents and high temperature heat transfer fluids, are provided herein. Also provided are advantageous methods for obtaining the aromatic compositions, utilizing hydroalkylation of precursor aromatic hydrocarbons such as benzene, toluene, xylene, and the like. Particularly preferred aromatic compositions include one or more of cycloalkylaromatic, dicycloalkylaromatic, biphenyl, terphenyl, and diphenyl oxide compounds. The aromatic compositions may be blended with an aromatic solvent or other aromatic fluid comprising one or more of alkylnaphthalenes, alkylbenzenes, and naphthalene, e.g., to form a useful aromatic fluid solvent, or the aromatic compositions may be utilized as high temperature heat transfer fluids (with or without additional blend components).
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 14, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Teng Xu, Stephen M. Davis
  • Patent number: 10711216
    Abstract: This disclosure relates to ester compounds derived from neo-alcohol, lubricating oil base stocks comprising such ester compounds, lubricating oil compositions comprising such ester compounds, and method for making such compounds and/or base stocks. The lubricating oil base stocks comprising the ester compounds exhibit desirable lubricating properties such as polarity and oxidation stability.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 14, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Abhimanyu O. Patil, Kyle G. Lewis, Satish Bodige
  • Patent number: 10711203
    Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon gas upgrading. The pyrolysis is carried out in a reactor which includes at least one thermal mass having an open frontal area ?55%.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: July 14, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Federico Barrai, Elizabeth G. Mahoney, John S. Coleman, Dhaval A. Bhandari, Brian M. Weiss, Changmin Chun, Frank Hershkowitz
  • Patent number: 10703838
    Abstract: The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes four different catalysts, a support material and an activator. The catalyst system may be used for preparing polyolefins, such as polyethylene.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 7, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, David F. Sanders, Matthew S. Bedoya, Ching-Tai Lue
  • Patent number: 10696758
    Abstract: This invention relates to metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula —CH2—SiR?3 or —CH2—CR?3 and R? is a C1 to C20 substituted or unsubstituted hydrocarbyl.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 30, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Subramaniam Kuppuswamy, Matthew W. Holtcamp, David M. Fiscus, Matthew S. Bedoya, Laughlin G. McCullough, Xuan Ye
  • Patent number: 10696608
    Abstract: In a process for producing paraxylene, a hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a Constraint Index ?5, and the alkylation conditions comprise a temperature less than 500° C. At least part of the alkylated product is supplied to a paraxylene recovery unit to recover paraxylene and produce a paraxylene-depleted stream, which is then contacted with a xylene isomerization catalyst under conditions effective to isomerize xylenes in the paraxylene-depleted stream and produce an isomerized stream having a higher concentration of paraxylene than the paraxylene-depleted stream. At least part of the isomerized stream is then recycled to the paraxylene recovery unit to recover the paraxylene therein.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 30, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Todd E. Detjen, Tan-Jen Chen, Brett T. Loveless, Robert G. Tinger
  • Patent number: 10696027
    Abstract: Disclosed are multilayer films which can provide desired film performance and balanced overall performance suited for various applications.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: June 30, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Dirk G. F. Van der Sanden, Mario Bastiaens, Achiel J. M. Van Loon, Etienne R. H. Lernoux, Marc Tierens
  • Patent number: 10683464
    Abstract: This disclosure relates to ester compounds derived from neo-acids, lubricating oil base stocks comprising such ester compounds, lubricating oil compositions comprising such ester compounds, and method for making such compounds and/or base stocks. The lubricating oil base stocks comprising the ester compounds exhibit desirable lubricating properties such as polarity and oxidation stability.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 16, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Abhimanyu O. Patil, Kyle G. Lewis, Satish Bodige
  • Patent number: 10676547
    Abstract: This invention relates to organoaluminum compounds, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems, and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising ion-exchange layered silicate, a catalyst compound, an activator and an aluminum compound represented by formula: Al(R?)3?v(R?)v, wherein each R?, independently, is a C1-C30 hydrocarbyl group; each R?, independently, is a C4-C20 hydrocarbenyl group; and v is from 0.1 to 3.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: June 9, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Gregory S. Day, John R. Hagadorn, Patrick J. Palafox, Ramyaa Mathialagan, Jo Ann M. Canich
  • Patent number: 10676410
    Abstract: Embodiments disclosed herein related to processes and systems for alkane aromatization. In some embodiments, the process includes merging a benzene-containing stream into an ethane containing stream to form a feed stream. The feed stream has at least 5 wt. % benzene based on the total weight of the feed stream. In addition, the process includes contacting the feed stream with an aromatization catalyst to produce an effluent stream comprising C7+ aromatic hydrocarbons. Less than 5 wt. % net benzene is produced during the contacting, based on a total weight of the feed stream.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 9, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: William J. Knaeble
  • Patent number: 10676551
    Abstract: This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (AVTA), to produce branched ethylene copolymers, preferably ethylene-butene, ethylene-hexene and ethylene-octene copolymers.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 9, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jo Ann M. Canich, John R. Hagadorn, Peijun Jiang
  • Patent number: 10669488
    Abstract: The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon upgrading.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 2, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Federico Barrai, James R. Lattner, Frank Hershkowitz, Elizabeth G. Mahoney
  • Patent number: 10669487
    Abstract: A method and apparatus of reducing thermal shock in one or more radiant tubes of a pyrolysis furnace is provided. The apparatus is a furnace comprising a blower and blower bypass conduit providing separate fluid communication paths for flue gas from the convection section to a natural draft flue gas stack. The method comprises the steps of: redirecting at least a portion of the flue gas through the blower bypass conduit when a blower shut-off event is indicated as well as reducing the firing rate of the furnace.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 2, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Spicer, Philippe J. Le Roy, George Stephens
  • Patent number: 10669414
    Abstract: Provided herein are elastomer blends and membranes including a blend of a propylene-based elastomer, a thermoplastic resin, a flame retardant, and an ultraviolet stabilizer.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: June 2, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Liang Li, Felix M. Zacarias, Narayanaswami Dharmarajan, Jan Kalfus, John R. Hagadorn, Peijun Jiang
  • Patent number: 10662388
    Abstract: This disclosure relates to ester compounds formed from gamma-branched aliphatic alcohols, lubricating oil base stocks comprising such ester compounds, lubricating oil compositions comprising such ester compounds, and method of making such base stocks. The lubricating oil base stocks comprising the ester compounds exhibit desirable lubricating properties such as polarity.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 26, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Abhimanyu O. Patil, Kyle G. Lewis, Satish Bodige, Stephen Zushma
  • Patent number: 10661258
    Abstract: The invention relates to treating a molecular sieve prepared by at least one in situ selectivation sequence wherein graphitic coke is adhered to said molecular sieve, which is useful in a toluene disproportionation process.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: May 26, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Todd E. Detjen, Xiaobo Zheng, Robert G. Tinger
  • Patent number: 10662325
    Abstract: The present invention relates to a polymer composition comprising a thermoplastic polyester and a propylene-based elastomer, wherein the propylene-based elastomer comprises propylene-derived units and 5 to 30 wt % of ?-olefin-derived units, and has a melting temperature of less than 120° C. and a heat of fusion of less than 75 J/g.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 26, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ying Ying Sun, Yi Ping Ni, Pei Te Bao, Yi Zhou Shi, Xiaoyun Wang
  • Patent number: 10662262
    Abstract: Borate activated catalyst systems and methods for making the same for gas phase or slurry phase olefin polymerization are provided. The catalyst system can include a first catalyst comprising a borate activated mono cyclopentadienyl metallocene compound and a second catalyst comprising a supported bis cyclopentadienyl metallocene complex. A supported bis cyclopentadienyl metallocene complex can be prepared to provide a preformed, supported catalyst, wherein the supported bis cyclopentadienyl metallocene complex comprises bis(1,3-methylbutyl cyclopentadienyl) zirconium dichloride. The preformed, supported catalyst can be mixed with mineral oil or hydrocarbon solvent to form a slurry. The slurry can be mixed with a borate activated mono cyclopentadienyl metallocene compound to form the borate activated catalyst system.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 26, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Dongming Li, Ching-Tai Lue, Phillip T. Matsunaga, Mark B. Davis
  • Patent number: 10654766
    Abstract: This disclosure relates to a continuous process for making a dimer from a terminal olefin in the presence of a catalyst system comprising a metallocene compound and alumoxane.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 19, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick C. Chen, Delanyo K. Seshie, Md Safatul Islam
  • Patent number: 10654770
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating diisobutylene to produce neopentane. The diisobutylene may be provided by the dimerization of isobutylene.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 19, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Lorenzo C. DeCaul, James R. Lattner