Patents by Inventor Christopher P. Junk

Christopher P. Junk 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: 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
  • 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
  • Patent number: 8048604
    Abstract: Hydrofluoroalkanesulfonates of the general formula R—O—CXH—CX2—SO3M, where R is selected from the group consisting of alkyl groups, functionalized alkyl groups, and alkenyl groups; X is selected from the group consisting of hydrogen and fluorine with the proviso that at least one X is fluorine; and M is a cation, are made by reacting fluorovinyl ether with aqueous sulfite solution. Organic onium hydrofluoroalkanesulfonates are useful as ionic liquids and photoacid generators.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 1, 2011
    Assignee: E.I.du Pont de Nemours and Company
    Inventors: Christopher P. Junk, Mark Andrew Harmer, Andrew Edward Feiring, Frank Leonard Schadt, III, Zoe Schnepp
  • Publication number: 20110195212
    Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.
    Type: Application
    Filed: April 8, 2011
    Publication date: August 11, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Christopher P. Junk, Donald Douglas May
  • Patent number: 7977426
    Abstract: A compound of Formula (1) Rf—O—(CXX?)m—(CY2)nSO3M??(1) wherein Rf is a C1 to C4 linear or branched perfluoroalkyl group, X and X? are each independently H or F, provided that at least one of X or X? is F, each Y is independently H or F, m is an integer from 1 to 4, n is an integer from 1 to 2, and M is H, NH4, Li, Na or K, provided that when CXX? is CHF or CFH, then n is 2.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: July 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sheng Peng, Ming-Hong Hung, Christopher P. Junk, Phan Linh Tang
  • 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
  • Patent number: 7947770
    Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: May 24, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Christopher P. Junk, Donald Douglas May
  • Publication number: 20110112320
    Abstract: A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
  • Patent number: 7897807
    Abstract: A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: March 1, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
  • Publication number: 20110039203
    Abstract: Hydrofluoroalkanesulfonates of the general formula R—O—CXH—CX2—SO3M, where R is selected from the group consisting of alkyl groups, functionalized alkyl groups, and alkenyl groups; X is selected from the group consisting of hydrogen and fluorine with the proviso that at least one X is fluorine; and M is a cation, are made by reacting fluorovinyl ether with aqueous sulfite solution. Organic onium hydrofluoroalkanesulfonates are useful as ionic liquids and photoacid generators.
    Type: Application
    Filed: October 21, 2010
    Publication date: February 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: CHRISTOPHER P. JUNK, MARK ANDREW HARMER, ANDREW EDWARD FEIRING, FRANK LEONARD SCHADT, III, ZOE SCHNEPP
  • Publication number: 20110031441
    Abstract: There are provided electrically conducting polymer compositions comprising an electrectically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INC
    Inventors: Che-Hsiung Hsu, Christopher P. Junk, Frank P. Uckert, Mark F. Teasley, Andrew Edward Feiring, Charles J. Dubois, Zhen-Yu Yang, Viacheslav A. Petrov, Natalie Daoud, Amy Qi Han
  • Patent number: 7838684
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7838679
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 23, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7837901
    Abstract: There are provided electrically conducting polymer compositions comprising an electrically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: November 23, 2010
    Assignees: E. I. du Pont de Nemours and Company, DuPont Displays Inc
    Inventors: Che-Hsiung Hsu, Christopher P. Junk, Frank P. Uckert, Mark F. Teasley, Andrew Edward Feiging, Charles J. Dubois, Natalie Daoud, Viascheslav A. Petrov, Zheng-Yu Yang, Amy Qi Han, legal representative
  • Patent number: 7834209
    Abstract: Hydrofluoroalkanesulfonates of the general formula R—O—CXH—CX2—SO3M, where R is selected from the group consisting of alkyl groups, functionalized alkyl groups, and alkenyl groups; X is selected from the group consisting of hydrogen and fluorine with the proviso that at least one X is fluorine; and M is a cation, are made by reacting fluorovinyl ether with aqueous sulfite solution. Organic onium hydrofluoroalkanesulfonates are useful as ionic liquids and photoacid generators.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 16, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Christopher P. Junk, Mark Andrew Harmer, Andrew Edward Feiring, Frank Leonard Schadt, III, Zoe Schnepp
  • Patent number: 7834192
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 16, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7834189
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 16, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7829704
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 9, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7829710
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 9, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
  • Patent number: 7829725
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 9, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery