Patents by Inventor Aaron Minter

Aaron Minter 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).

  • N-substituted pyrrolidonium ionic liquids with expanded linker
    Patent number: 8735603
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 27, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Aaron Minter
  • Carbon dioxide removal and ionic liquid compounds useful therein
    Patent number: 8721770
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 13, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
  • Polytrimethylene ether glycol or copolymers thereof having improved color and processes for their preparation
    Patent number: 8598391
    Abstract: Processes for reducing the color of polytrimethylene ether glycol or copolymers thereof are provided. The processes include polycondensing diols in the presence of an acid catalyst and adding base continuously over a period of the polycondensation reaction. The invention also relates to the polytrimethylene ether glycol thereof produced by these processes.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 3, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Aaron Minter, Edward R. Murphy, Howard C. Ng, Rupert Spence, Tuyu Xie
  • Functionalized N-substituted pyrrolidonium ionic liquids
    Patent number: 8350056
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: January 8, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • Process for the preparation of polyalkylene ether glycol
    Patent number: 8247526
    Abstract: Polyalkylene ether glycol or copolymer thereof are prepared by contacting at least one alkanediol with a alkanediol containing cyclic sulfate.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 21, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Aaron Minter, Edward R. Murphy, James M. Tocyloski
  • PROCESS FOR THE PREPARATION OF POLYALKYLENE ETHER GLYCOL
    Publication number: 20120157657
    Abstract: Polyalkylene ether glycol or copolymer thereof are prepared by contacting at least one alkanediol with a alkanediol containing cyclic sulfate.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Aaron Minter, Edward R. Murphy, James M. Tocyloski
  • N-Substituted Pyrrolidonium Ionic Liquids with Expanded Linker
    Publication number: 20120130088
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: December 4, 2009
    Publication date: May 24, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Aaron Minter
  • N-substituted pyrrolidonium ionic liquids
    Patent number: 8138354
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2. R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A? is levulinate, [CF3—O—CFHCF2SO3]?, [CF3CF2OCFHCF2SO3]?, or [CF3CF2CF2OCFHCF2SO3]?.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 20, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • Functionalized N-substituted pyrrolidonium ionic liquids
    Patent number: 8119818
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 21, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • Process for the synthesis of diaminopyridines from glutarimidines
    Patent number: 8084569
    Abstract: A liquid-phase process is provided for the synthesis from glutarimidines of diaminopyridines and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: December 27, 2011
    Assignee: E.I. DuPont de Nemours and Company
    Inventors: Aaron Minter, Berlin Stokes
  • CONTINUOUS LIQUID-PHASE PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARONITRILES
    Publication number: 20110301314
    Abstract: A liquid-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Application
    Filed: December 17, 2009
    Publication date: December 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Keith W. Hutchenson, Aaron Minter
  • CARBON DIOXIDE REMOVAL AND IONIC LIQUID COMPOUNDS USEFUL THEREIN
    Publication number: 20110296993
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.
    Type: Application
    Filed: December 4, 2009
    Publication date: December 8, 2011
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
  • Process for the synthesis of diaminopyridines from glutaronitriles
    Patent number: 8022167
    Abstract: A liquid-phase process is provided for the manufacture from glutaronitriles and related compounds of 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: September 20, 2011
    Inventors: Aaron Minter, Berlin Stokes
  • Gas-phase process for the synthesis of diaminopyridines from glutaronitriles
    Patent number: 7999057
    Abstract: A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: August 16, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Keith W. Hutchenson, Aaron Minter, Gregg Sunshine
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20110137048
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: June 2, 2010
    Publication date: June 9, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • POLYTRIMETHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF HAVING IMPROVED COLOR AND PROCESSES FOR THEIR PREPARATION
    Publication number: 20110077433
    Abstract: Processes for reducing the color of polytrimethylene ether glycol or copolymers thereof are provided. The processes include polycondensing diols in the presence of an acid catalyst and adding base continuously over a period of the polycondensation reaction. The invention also relates to the polytrimethylene ether glycol thereof produced by these processes.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 31, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Aaron Minter, Edward R. Murphy, Howard C. Ng, Rupert Spence, Tuyu Xie
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145074
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145073
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2, R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A?is levulinate, —[CF3—O—CFHCF2SO3]—, [CF3CF2OCFHCF2SO3]—, or [CF3CF2CF2OCFHCF2SO3]—.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARIMIDINES
    Publication number: 20100056749
    Abstract: A liquid-phase process is provided for the synthesis from glutarimidines of diaminopyridines and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Application
    Filed: December 18, 2007
    Publication date: March 4, 2010
    Inventors: Aaron Minter, Berlin Stokes
  • PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARONITRILES
    Publication number: 20100029948
    Abstract: A liquid-phase process is provided for the manufacture from glutaronitriles and related compounds of 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Application
    Filed: December 18, 2007
    Publication date: February 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Aaron Minter, Berlin Stokes