Patents by Inventor Dick Nagaki

Dick Nagaki 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: 20130245308
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises a metal phosphate matrix containing vanadium and bismuth. Preferably, the catalyst comprises, in an active phase, vanadium to bismuth at a molar ratio of at least 0.02:1. Preferably, the catalyst composition is substantially free of titanium.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 19, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Dick Nagaki, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
  • Publication number: 20130245312
    Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, bismuth and titanium. Preferably, the catalyst comprises 0.3 wt % to 30 wt % vanadium, 0.1 wt % to 69 wt % bismuth and 0.1 wt % to 61 wt % tungsten, in an active phase.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 19, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
  • Publication number: 20130245311
    Abstract: The invention is to a process for producing an acrylate product. The process includes the steps of contacting an alkanoic acid and an alkylenating agent over a catalyst composition under conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and tungsten. Preferably, the catalyst comprises vanadium to tungsten at a molar ratio of at least 0.02:1, in an active phase.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 19, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Dick Nagaki, Tianshu Pan, Craig J. Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman, Sean Mueller
  • Publication number: 20130245310
    Abstract: A process for producing an acrylate product comprises the step of contacting an alkanoic acid and an alkylenating agent over a catalyst over conditions effective to produce the acrylate product. The catalyst composition comprises vanadium, titanium and bismuth. Preferably, the catalyst comprises vanadium to bismuth at a molar ratio of greater than 0.2:1, in an active phase.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Applicant: Celanese International Corporation
    Inventors: Dick Nagaki, Craig Peterson, Heiko Weiner, Elizabeth Bowden, Josefina T. Chapman
  • Patent number: 8536368
    Abstract: In one embodiment, the invention relates to a process for producing an acrylate product. The process comprises the step of reacting a reaction mixture comprising an alkanoic acid and an alkylenating agent composition under conditions effective to form a crude acrylate product. The alkylenating agent composition comprises at least 1 wt % of a ring-structured compound comprising at least two oxygen atoms and at least one carbon atom, e.g., trioxane and/or tetraoxane. The process further comprises the step of separating at least a portion of the crude acrylate product to form at least one alkylenating agent stream and at least one purified acrylate product stream comprising acrylate product.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 17, 2013
    Assignee: Celanese International Corporation
    Inventors: Sean Mueller, Dick Nagaki, Craig J. Peterson, Josefina T. Chapman
  • Publication number: 20130158295
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of dehydrating a crude alkylenating agent stream to form a dehydrated alkylenating agent stream and a water stream. The process further comprises reacting acetic acid with at least a portion of the dehydrated alkylenating agent stream to form a crude acrylate product stream comprising acrylate product and alkylenating agent stream. The dehydrating of the crude alkylenating stream is accomplished using at least one evaporator or at least one distillation column.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Applicant: Celanese International Corporation
    Inventors: Ilias S. Kotsianis, Sean Mueller, Dick Nagaki, Tianshu Pan, Craig J. Peterson, Josefina T. Chapman
  • Publication number: 20130085294
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 4, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Craig Peterson, Josefina Chapman, Ilias Kotsianis, Sean Mueller, Dick Nagaki, Tianshu Pan
  • Publication number: 20130085295
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting an alcohol and oxygen in a reactor to produce a high temperature alkylenating agent stream comprising an alkylenating agent. The process further comprises the step of contacting an alkanoic acid with at least a portion of the high temperature alkylenating agent stream under conditions effective to form a crude product stream comprising acrylate product and alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form at least one alkylenating agent stream and at least one purified acrylate product stream comprising acrylate product.
    Type: Application
    Filed: March 9, 2012
    Publication date: April 4, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Craig Peterson, Josefina T. Chapman, Sean Mueller, Dick Nagaki, Tianshu Pan
  • Publication number: 20130085293
    Abstract: In one embodiment, the invention is to a catalyst composition comprising vanadium and titanium. The catalyst composition further comprises ethylene glycol and citric acid. Preferably, the catalyst composition is substantially free of oxalic acid and lactic acid.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 4, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Dick Nagaki, Craig Peterson, Mark Scates, Heiko Weiner, Josefina T. Chapman, Alexandra S. Locke
  • Publication number: 20130085296
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting a reaction mixture comprising an alkanoic acid, an alkylenating agent, and oxygen over a catalyst and under conditions effective to form a crude acrylate product. Preferably, the reaction mixture comprises from 0.5 wt % to 10 wt % oxygen. The crude acrylate product comprises acrylate product and alkylenating agent. The process further comprises the step of separating at least a portion of the crude product to form at least one alkylenating agent stream and at least one purified acrylate product stream. The purified acrylate product stream comprises acrylate product.
    Type: Application
    Filed: March 23, 2012
    Publication date: April 4, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Sean Mueller, Josefina Chapman, Craig Peterson, Dick Nagaki
  • Publication number: 20130079553
    Abstract: In one embodiment, the invention is to a catalyst composition comprising vanadium and titanium. The catalyst composition has a surface area of at least 22.6 m2/g and a plurality of pores, and the plurality of pores have a pore diameter of less than 11.9 nm.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Applicant: Celanese International Corporation
    Inventors: Heiko Weiner, Josefina T. Chapman, Alexandra S. Locke, Craig J. Peterson, Mark O. Scates, Dick Nagaki
  • Publication number: 20130053599
    Abstract: In one embodiment, the invention is to a catalyst composition comprising titanium, phosphorus, and less than 1 wt. % vanadium. The catalyst composition has a molar ratio of phosphorus to titanium of at least 1.0:1.0.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 28, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Heiko Weiner, Josefina T. Chapman, Alexandra S. Locke, Dick Nagaki, Craig J. Peterson, Mark O. Scates
  • Publication number: 20120289743
    Abstract: In one embodiment, the invention is to a catalyst composition comprising vanadium, titanium; and at least one oxide additive. The at least one oxide additive is present in an amount of at least 0.1 wt % based on the total weight of the catalyst composition. The molar ratio of titanium to metal additive in an active phase of the catalyst composition is at least 0.05:1.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: Celanese International Corporation
    Inventors: Dick Nagaki, Heiko Weiner, Josefina T. Chapman, Mark O. Scates, Alexandra S. Locke, Craig J. Peterson
  • Patent number: 8309771
    Abstract: A two-stage, gas phase process for manufacturing alkylene glycol (e.g., ethylene glycol) from an alkene (e.g., ethylene), oxygen and water, the process comprising the steps of: (A) Contacting under gas phase, oxidation conditions gaseous alkene and oxygen over a heterogeneous oxidation catalyst to produce a gaseous oxidation product comprising alkylene oxide, water and unreacted alkene; (B) Contacting under gas phase, hydrolysis conditions the gaseous oxidation product of (A) with added water over a heterogeneous hydrolysis catalyst to produce a gaseous alkylene glycol and unreacted alkene; and (C) Recycling the unreacted alkene of (B) to (A). The hydrolysis catalyst is selected from the group consisting of hydrotalcites, metal-loaded zeolites, phosphates, and metal-loaded ion-exchanged molecular sieves.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 13, 2012
    Assignee: Dow Technology Investments LLC
    Inventors: Joseph C. Noronha, Elbert J. Campbell, Brian T. Keen, Dick A. Nagaki, Hwaili Soo, David A. Spears, John F. Szul
  • Publication number: 20120277466
    Abstract: In one embodiment, the invention is to a catalyst composition, comprising vanadium and titanium. Preferably, the molar ratio of vanadium to titanium in an active phase of the catalyst composition is greater than 0.5:1.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: Celanese International Corporation
    Inventors: Dick Nagaki, Heiko Weiner, Josefina T. Chapman, Mark O. Scates, Alexandra S. Locke, Craig J. Peterson
  • Publication number: 20120172588
    Abstract: The present invention provides processes for catalytically converting biomass to oxygenated compounds suitable for use in bioreforming processes.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 5, 2012
    Inventors: Ming Qiao, Randy D. Cortright, Dick A. Nagaki, Elizabeth Woods
  • Publication number: 20120167875
    Abstract: The present invention provides processes for deconstructing biomass using a solvent produced in a bioreforming reaction.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 5, 2012
    Inventors: Ming Qiao, Randy D. Cortright, Dick A. Nagaki
  • Publication number: 20100036176
    Abstract: A two-stage, gas phase process for manufacturing alkylene glycol (e.g., ethylene glycol) from an alkene (e.g., ethylene), oxygen and water, the process comprising the steps of: (A) Contacting under gas phase, oxidation conditions gaseous alkene and oxygen over a heterogeneous oxidation catalyst to produce a gaseous oxidation product comprising alkylene oxide, water and unreacted alkene; (B) Contacting under gas phase, hydrolysis conditions the gaseous oxidation product of (A) with added water over a heterogeneous hydrolysis catalyst to produce a gaseous alkylene glycol and unreacted alkene; and (C) Recycling the unreacted alkene of (B) to (A). The hydrolysis catalyst is selected from the group consisting of hydrotalcites, metal-loaded zeolites, phosphates, and metal-loaded ion-exchanged molecular sieves.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 11, 2010
    Inventors: Joseph C. Noronha, Elbert J. Campbell, Brian T. Keen, Dick A. Nagaki, Hwaili Soo, David A. Spears, John F. Szul
  • Patent number: 6972270
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: December 6, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Patent number: 6960549
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: November 1, 2005
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson