Patents by Inventor James R. Lattner

James R. Lattner 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: 20190225561
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 25, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, Steven W. Levine, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Publication number: 20190218318
    Abstract: A process including contacting one or more monomers, at least one catalyst system, and at least two condensing agents under polymerizable conditions to produce a polyolefin polymer is provided where the vapor pressure of the condensing agents is ±4 bara of the optimum vapor pressure given by the formula: optimum vapor pressure=614?716*D+2.338*P+3.603*ln(MI), where the optimum vapor pressure has units (bara), D is the polyolefin polymer density with units (g/cc), P is the polymerization condition pressure with units (barg), and MI is the polyolefin polymer melt index with units (g/10 min). The invention also relates to a process where at least three condensing agents are used.
    Type: Application
    Filed: September 7, 2017
    Publication date: July 18, 2019
    Inventors: Corrine L. Brandl, Fred D. Ehrman, James R. Lattner
  • Publication number: 20190177248
    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: Application
    Filed: August 18, 2017
    Publication date: June 13, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, James R. Lattner
  • Publication number: 20190169092
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C6-C7 paraffins.
    Type: Application
    Filed: August 18, 2017
    Publication date: June 6, 2019
    Inventors: Kun Wang, Lorenzo C. DeCaul, Michele L. Paccagnini, Etienne Mazoyer, James R. Lattner, Helge Jaensch, Ali A. Kheir
  • Publication number: 20190161421
    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., natural gas upgrading. The pyrolysis can be carried out in a reverse-flow reactor.
    Type: Application
    Filed: August 15, 2017
    Publication date: May 30, 2019
    Inventors: Federico Barrai, John S. Coleman, Dhaval A. Bhandari, Frank Hershkowitz, James R. Lattner
  • Publication number: 20190153331
    Abstract: The invention relates to approach temperatures and approach temperature ranges that are beneficial in operating a pyrolysis reactor, to pyrolysis reactors exhibiting a beneficial approach temperature, to processes for carrying out hydrocarbon pyrolysis in a pyrolysis reactor having a beneficial approach temperature. The pyrolysis reactor can be, e.g., a reverse-flow pyrolysis reactor, such as a regenerative reverse-flow pyrolysis reactor.
    Type: Application
    Filed: August 15, 2017
    Publication date: May 23, 2019
    Inventors: Federico Barrai, Elizabeth G. Mahoney, James R. Lattner, Thomas W. Pavia, John S. Coleman
  • Publication number: 20190048280
    Abstract: This disclosure relates to naphthalene-1,8-dicarboxylate ester compounds, lubricating oil base stocks comprising naphthalene-1,8-dicarboxylate ester compounds, lubricating oil compositions comprising such base stocks, and method of making such base stocks. The lubricating oil base stocks comprising naphthalene-1,8-dicarboxylate ester compounds exhibit desirable lubricating properties such as polarity.
    Type: Application
    Filed: June 20, 2018
    Publication date: February 14, 2019
    Inventors: Abhimanyu O. Patil, Hong Cheng, Stephen T. Cohn, James R. Lattner
  • Patent number: 10196571
    Abstract: Methods are provided for converting lignin-containing biomass into compounds that are more readily processed to form fuel and/or chemical products. The methods can allow for removal of at least a portion of the oxygen in lignin, either during or after depolymerization of lignin to single ring aromatic compounds, while optionally reducing or minimizing aromatic saturation performed on the aromatic compounds. The methods can include use of quench solvent to control reactions within the product stream from a pyrolysis process and/or use of a solvent to assist with hydroprocessing of lignin, lignin-containing biomass, or a pyrolysis oil.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 5, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James R. Lattner, Teng Xu, Paul F. Keusenkothen
  • Publication number: 20180118917
    Abstract: Provided are compounds and processes of making and using such compounds of the formula: Wherein R=C4 to C15 linear or branched alkyls wherein R is a linear or branched alkyl residue of a C4 to C15 alcohol. Such compounds provide advantageous properties when used as plasticizers in polymer compositions.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 3, 2018
    Inventors: Stephen T. COHN, Christopher M. EVANS, James R. LATTNER, Christine A. COSTELLO, Didier A. NAERT, Bernard F. LEROY
  • Publication number: 20180118660
    Abstract: A diester of a fused ring compound of the formula (I): wherein the R1 to R6 substituents are H or ester moieties having C1 to C20 alkyl chains, but when both fused rings are aromatic and R3 and R4 are ester moieties, the alkyl chains are not C5 or C8, and polymer compositions containing the fused ring compound.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 3, 2018
    Inventors: Stephen T. COHN, Christopher M. EVANS, Christine A. COSTELLO, James R. LATTNER
  • Patent number: 9896525
    Abstract: This invention relates to a continuous homogeneous solution phase polymerization process comprising contacting, in an evaporative reactor system at a temperature of 50° C. or more and a pressure of 100 kPa or more, a catalyst system, optionally, a hydrocarbon diluent, optionally, scavenger, and one or more monomer(s) to form a homogeneous polymerization medium, where the polymer product is dissolved in the reaction medium at 10 wt % or more (based upon the weight of the polymer present in the effluent at the exit of the reactor) and the catalyst system is dissolved in the reaction medium, and where the catalyst system comprises an activator and a coordination catalyst precursor compound and where all or part of the polymerization medium is evaporated during the polymerization.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 20, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James R. Lattner, Gabor Kiss, Christopher B. Friedersdorf
  • Patent number: 9815759
    Abstract: Disclosed herein is a process for producing phenol. The process includes oxidizing at least a portion of a feed comprising cyclohexylbenzene to produce an oxidation composition comprising cyclohexyl-1-phenyl-1-hydroperoxide. The oxidation composition may then be cleaved in the presence of an acid catalyst to produce a cleavage reaction mixture comprising the acid catalyst, phenol and cyclohexanone. At least a portion of the cleavage reaction mixture may be neutralized with a basic material to form a treated cleavage reaction mixture. In various embodiments, the treated cleavage reaction mixture contains no greater than 50 wppm of the acid catalyst or no greater than 50 wppm of the basic material.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 14, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith H. Kuechler, Francisco M. Benitez, Kun Wang, James R. Lattner, Christopher L. Becker
  • Publication number: 20170183580
    Abstract: Methods are provided for producing lubricant base stocks from deasphalted oils formed by sequential deasphalting. The deasphalted oil can be exposed a first deasphalting process using a first solvent that can provide a lower severity of deasphalting and a second deasphalting process using a second solvent that can provide a higher severity of deasphalting. This can result in formation of at least a deasphalted oil and a resin fraction. The resin fraction can represent a fraction that traditionally would have been included as part of a deasphalter rock fraction.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 29, 2017
    Inventors: Mohsen N. Harandi, Doron Levin, Himanshu Gupta, James R. Lattner, Glenn C. Wood, Keith K. Aldous, Timothy L. Hilbert, Michael B. Carroll, Ajit B. Dandekar, Sara L. Yohe, Stephen H. Brown, Tracie L. Owens, April D. Ross, Eric B. Senzer, Steven Pyl
  • Patent number: 9663418
    Abstract: A system for making cyclohexylbenzene starting from benzene and hydrogen includes a first benzene preparation column, a hydroalkylation reactor, a dehydrogenation reactor, a second distillation column for cyclohexylbenzene separation, a third distillation column for cyclohexylbenzene purification, a transalkylation reactor, and a fourth distillation column for separating cyclohexylbenzene from transalkylation effluent. All components are integrated to achieve a high-purity cyclohexylbenzene product produced with a high yield and high overall energy efficiency.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 30, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, James R. Lattner, Francisco M. Benitez, Charles Morris Smith
  • Patent number: 9656934
    Abstract: In a process for producing phenol, a cleavage feed comprising cyclohexylbenzene hydroperoxide is supplied to a cleavage reaction zone and a cleavage reaction mixture comprising the cleavage feed is contacted in the cleavage reaction zone with a solid acid catalyst under conditions effective to produce a cleavage effluent comprising phenol and cyclohexanone. The cleavage effluent is then divided into at least a cleavage product and a cleavage recycle and the cleavage recycle and a polar solvent is supplied to the cleavage reaction zone to produce the cleavage reaction mixture with the cleavage feed. Preferably, the polar solvent is combined with the cleavage recycle before being charged into the cleavage reaction zone.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 23, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hari Nair, Christopher L. Becker, Karen S. Nimmo, James R. Lattner, Francisco M. Benitez, Charles Morris Smith
  • Publication number: 20160319054
    Abstract: This invention relates to a continuous homogeneous solution phase polymerization process comprising contacting, in an evaporative reactor system at a temperature of 50° C. or more and a pressure of 100 kPa or more, a catalyst system, optionally, a hydrocarbon diluent, optionally, scavenger, and one or more monomer(s) to form a homogeneous polymerization medium, where the polymer product is dissolved in the reaction medium at 10 wt % or more (based upon the weight of the polymer present in the effluent at the exit of the reactor) and the catalyst system is dissolved in the reaction medium, and where the catalyst system comprises an activator and a coordination catalyst precursor compound and where all or part of the polymerization medium is evaporated during the polymerization.
    Type: Application
    Filed: March 29, 2016
    Publication date: November 3, 2016
    Inventors: JAMES R. LATTNER, GABOR KISS, CHRISTOPHER B. FRIEDERSDORF
  • Patent number: 9475738
    Abstract: Disclosed herein are methods and apparatus for deactivating a catalyst composition in an reaction product stream. One such method and apparatus contact the catalyst composition with a catalyst-deactivating composition and a diluent in a vapor phase of a product-receiving vessel, wherein the boiling point of the diluent is at least 5.0° C. greater than the boiling point of the catalyst-deactivating composition. Also disclosed are oligomerization systems for producing oligomers.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: October 25, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael W. Weber, James R. Lattner, Michael J. Veraa
  • Patent number: 9458074
    Abstract: In a process for producing phenol, benzene is reacted with a source of hydrogen containing methane in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction effluent comprising cyclohexylbenzene, benzene, hydrogen, and methane. A first stream comprising hydrogen, methane, and benzene is removed from the hydroalkylation reaction effluent and the first stream is washed with a second stream containing cyclohexylbenzene to produce a benzene-depleted hydrogen stream containing hydrogen and methane and a wash stream containing cyclohexylbenzene and benzene.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 4, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, James R. Lattner, Keith H. Kuechler, Hari Nair
  • Patent number: 9458067
    Abstract: In a process for producing cyclohexylbenzene, hydrogen and benzene are introduced to a first hydroalkylation reaction zone which contains a hydroalkylation catalyst and which is operated under at least partly liquid phase conditions sufficient to effect hydroalkylation of benzene to produce a mixed liquid/vapor phase effluent comprising cyclohexylbenzene and unreacted benzene, wherein at least a portion of the unreacted benzene is in the vapor phase. At least a portion of the effluent is cooled to condense a liquid phase stream containing at least some of the cyclohexylbenzene in the effluent portion and leave a residual stream containing at least some of the unreacted benzene and cyclohexylbenzene. At least a portion of the liquid stream is recycled to the first hydroalkylation reaction zone or to contact the mixed phase effluent exiting the first hydroalkylation reaction zone. Other methods of cooling the reaction effluent are disclosed.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 4, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Hari Nair, James R. Lattner, Keith H. Kuechler
  • Patent number: 9382172
    Abstract: In a process for producing cyclohexylbenzene, benzene is contacted with hydrogen in the presence of a hydroalkylation catalyst under hydroalkylation conditions effective to form a first effluent stream comprising cyclohexylbenzene, cyclohexane, and benzene. At least a portion of the cyclohexane from the first effluent stream is then contacted with hydrogen in the presence of a dehydrogenation catalyst under dehydrogenation conditions effective to convert at least some of the cyclohexane into benzene contained in a second effluent stream. At least some of the hydrogen is supplied to the process so as to contact the dehydrogenation zone (e.g., the dehydrogenation catalyst) before contacting the hydroalkylation catalyst.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: July 5, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, James R. Lattner, Keith H. Kuechler, Hari Nair