Patents by Inventor Gary A. Roth

Gary A. Roth 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: 9376388
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 28, 2016
    Assignee: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Publication number: 20150344597
    Abstract: The present disclosure is directed to the production of substituted phenylene aromatic diesters and 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate (or “BMPD”) in particular. The processes disclosed herein produce a liquid BMPD product. The liquid BMPD product unexpectedly creates production efficiencies by reducing the number of production steps, reducing the amount and/or number of reagents required for BMPD production. The liquid BMPD product may also be utilized in procatalyst production yielding similar production efficiencies. The procatalyst composition is subsequently used for olefin polymerization.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Inventors: Michael F. Gullo, Gary A. Roth, Tak W. Leung, Clark C. Williams
  • Patent number: 9133286
    Abstract: The present disclosure is directed to the production of substituted phenylene aromatic diesters and 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate (or “BMPD”) in particular. The processes disclosed herein produce a liquid BMPD product. The liquid BMPD product unexpectedly creates production efficiencies by reducing the number of production steps, reducing the amount and/or number of reagents required for BMPD production. The liquid BMPD product may also be utilized in procatalyst production yielding similar production efficiencies. The procatalyst composition is subsequently used for olefin polymerization.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: September 15, 2015
    Assignee: W. R. Grace & Co.-Conn
    Inventors: Michael F. Gullo, Gary A. Roth, Tak W. Leung, Clark C. Williams
  • Publication number: 20150191428
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 9045427
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: June 2, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 8871943
    Abstract: Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates comprising a step of converting chloropicolinoyl chlorides to fluoropicolinoyl fluorides.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 28, 2014
    Assignee: Dow AgroSciences, LLC.
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 8754231
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: June 17, 2014
    Assignee: Dow AgroSciences, LLC.
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Gary A. Roth, David E. Podhorez, Scott P. West, Cynthia Arndt
  • Publication number: 20140031558
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Publication number: 20140031556
    Abstract: Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates comprising a step of converting chloropicolinoyl chlorides to fluoropicolinoyl fluorides.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 8609855
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: December 17, 2013
    Assignee: Dow AgroSciences, LLC.
    Inventors: Gregory T. Whiteker, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary A. Roth, Scott P. West, Cynthia Arndt
  • Patent number: 8507717
    Abstract: The present disclosure is directed to the production of 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate and the purification thereof. Synthesis pathways for a precursor to 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate are provided. The precursor is 5-tert-butyl-3-methylcatechol.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: August 13, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Tak W. Leung, Gary A. Roth, Tao Tao, Kuanqiang Gao, Linfeng Chen
  • Publication number: 20130053525
    Abstract: The present disclosure is directed to the production of substituted phenylene aromatic diesters and 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate (or “BMPD”) in particular. The processes disclosed herein produce a liquid BMPD product. The liquid BMPD product unexpectedly creates production efficiencies by reducing the number of production steps, reducing the amount and/or number of reagents required for BMPD production. The liquid BMPD product may also be utilized in procatalyst production yielding similar production efficiencies. The procatalyst composition is subsequently used for olefin polymerization.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Inventors: Michael F. Gullo, Gary A. Roth, Tak W. Leung, Clark C. Williams
  • Publication number: 20120190859
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: Dow AgroSciences LLC
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Kim E. Arndt, Gary A. Roth, David E. Podhorez, Scott P. West, Cynthia Arndt
  • Publication number: 20120190860
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Gregory T. Whiteker, Kim E. Arndt, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary A. Roth, Scott P. West, Cynthia Arndt
  • Publication number: 20120142933
    Abstract: 2-Trifluoromethyl-5-(1-substituted)alkylpyridines are produced efficiently and in high yield from an 4-alkoxy-1,1,1-trifluorobut-3-en-2-one by a condensation and a cyclization reaction. Both reactions are performed in the same nonpolar solvent without isolation and purification of intermediates.
    Type: Application
    Filed: November 23, 2011
    Publication date: June 7, 2012
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Gary A. Roth, Douglas C. Bland, James R. McConnell
  • Publication number: 20120088913
    Abstract: 5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 12, 2012
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Craig Bott, Christopher T. Hamilton, Gary A. Roth
  • Publication number: 20110295003
    Abstract: 5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Craig Bott, Christopher T. Hamilton, Gary A. Roth
  • Publication number: 20100174105
    Abstract: The present disclosure is directed to the production of 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate and the purification thereof. Synthesis pathways for a precursor to 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate are provided. The precursor is 5-tert-butyl-3-methylcatechol.
    Type: Application
    Filed: December 31, 2009
    Publication date: July 8, 2010
    Inventors: Tak W. Leung, Gary A. Roth, Tao Tao, Kuanqiang Gao, Linfeng Chen
  • Patent number: 7683161
    Abstract: Spinetoram is selectively produced in excellent yields by hydrogenating a mixture of 3?-O-ethyl spinosyn J and 3?-O-ethyl spinosyn L in a water miscible organic solvent using hydrogen gas and a heterogeneous catalyst.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: March 23, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: David E. Podhorez, Gary A. Roth, David C. Molzahn, Timothy Adaway
  • Publication number: 20100004457
    Abstract: 2-Trifluoromethyl-5-(1-substituted)alkylpyridines are produced efficiently and in high yield from an alkyl vinyl ether and trifluoroacetyl chloride by cyclization.
    Type: Application
    Filed: June 15, 2009
    Publication date: January 7, 2010
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Douglas C. Bland, Gary A. Roth