Patents by Inventor Mark Andrew Harmer

Mark Andrew Harmer 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).

  • Ionic Liquids
    Publication number: 20090234118
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 17, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic Liquids
    Publication number: 20090234133
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 17, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic Liquids
    Publication number: 20090234134
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 17, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic Liquids
    Publication number: 20090234135
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 17, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic Liquids
    Publication number: 20090234120
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 17, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic Liquids
    Publication number: 20090227447
    Abstract: The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 10, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Ionic liquids
    Patent number: 7544813
    Abstract: Compositions of matter useful as ionic liquids of the formula Z+A?, wherein Z+ is a cation selected from the group consisting of pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, triazolium, and phosphonium, ammonium cations with specified substituents, and A? is selected from the group consisting of the following three anions wherein R11, R12 and R13 are as specified. R11—CHF—CF2—SO3???Formula I R12—CF2—CF2—SO3???Formula II (R13—CHF—CF2—SO2)2N???Formula III.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: June 9, 2009
    Assignee: E.I. Du Pont De Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • PREPARATION OF POLYTRIMTHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF
    Publication number: 20090118465
    Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof by a polycondensation reaction using at least one acid catalyst, wherein the temperature of the reaction is controlled such that the average temperature during the first half of the reaction is higher than the average temperature during the second half of the reaction.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: David C. Confer, Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Sigridur Soley Kristjansdottir, Rupert Spence
  • PREPARATION OF POLYTRIMETHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF
    Publication number: 20090118464
    Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Rupert Spence
  • Preparation of poly(tetramethylene) glycol
    Patent number: 7528287
    Abstract: This invention relates to a process comprising using ionic liquids for preparing poly(tetramethylene) glycol from tetrahydrofuran.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: May 5, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery, Robert Miller
  • Preparation of polytrimethylene ether glycol and copolymers thereof
    Patent number: 7405330
    Abstract: The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: July 29, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Leo Ernest Manzer
  • Preparation of poly(tetramethylene) glycol
    Patent number: 7402711
    Abstract: This invention relates to a process comprising using ionic liquids for preparing poly(tetramethylene)glycol from tetrahydrofuran.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: July 22, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Leo Ernest Manzer
  • Compositions of electrically conductive polymers and non-polymeric fluorinated organic acids
    Patent number: 7354532
    Abstract: Compositions are provided comprising at least one conductive polymer and at least one non-polymeric fluorinated organic acid, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof. Electronic devices and applications having at least one layer comprising such compositions are further provided.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: April 8, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Mark Andrew Harmer, Christopher P. Junk
  • Alkylation of aromatic compounds
    Patent number: 7314962
    Abstract: The present invention relates to the synthesis of alkylated aromatic compounds using ionic liquids as the solvent. Alkylated aromatic compounds are synthesized by reacting an aromatic compound with a monoolefin in the presence of an acid catalyst.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: January 1, 2008
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Leo Ernest Manzer
  • Preparation of polytrimethylene ether glycol and copolymers thereof
    Patent number: 7238772
    Abstract: The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: July 3, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk
  • Membrane free fuel cell
    Patent number: 7238440
    Abstract: The invention is directed to a fuel cell comprising an anode and a cathode immersed in an electrolyte in the presence of a reductant and oxidant, wherein the distinguishing feature is that all of the elements of the fuel cell communicate freely with each other and there is no membrane or other separator between the anode and the cathode.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: July 3, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael B. Damore, William E. Farneth, Mark Andrew Harmer
  • Ionic liquids
    Patent number: 7157588
    Abstract: The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring by a variable length alkyl spacer.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: January 2, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Leo Ernest Manzer
  • Method for providing nano-structures of uniform length
    Patent number: 6998358
    Abstract: This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: February 14, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Roger Harquail French, Timothy Gierke, Mark Andrew Harmer, Anand Jagota, Steven Raymond Lustig, Rakesh H. Mehta, Paula Beyer Hietpas, Bibiana Onoa
  • Method for providing nano-structures of uniform length
    Patent number: 6946410
    Abstract: This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: September 20, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Roger Harquail French, Timothy Gierke, Mark Andrew Harmer, Anand Jagota, Steven Raymond Lustig, Rakesh H. Mehta, Paula Beyer Hietpas, Bibiana Onoa
  • Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
    Patent number: 6933257
    Abstract: Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: August 23, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Qun Sun