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).
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Patent number: 8119818Abstract: 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: GrantFiled: December 4, 2008Date of Patent: February 21, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
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Publication number: 20110296993Abstract: 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: ApplicationFiled: December 4, 2009Publication date: December 8, 2011Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
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Patent number: 8048604Abstract: 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: GrantFiled: October 21, 2010Date of Patent: November 1, 2011Assignee: E.I.du Pont de Nemours and CompanyInventors: Christopher P. Junk, Mark Andrew Harmer, Andrew Edward Feiring, Frank Leonard Schadt, III, Zoe Schnepp
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Publication number: 20110195212Abstract: 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: ApplicationFiled: April 8, 2011Publication date: August 11, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Christopher P. Junk, Donald Douglas May
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Patent number: 7977426Abstract: 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: GrantFiled: November 13, 2008Date of Patent: July 12, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Sheng Peng, Ming-Hong Hung, Christopher P. Junk, Phan Linh Tang
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Publication number: 20110137048Abstract: 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: ApplicationFiled: June 2, 2010Publication date: June 9, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
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Patent number: 7947770Abstract: 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: GrantFiled: February 28, 2008Date of Patent: May 24, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Christopher P. Junk, Donald Douglas May
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Publication number: 20110112320Abstract: 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: ApplicationFiled: January 20, 2011Publication date: May 12, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
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Patent number: 7897807Abstract: 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: GrantFiled: February 22, 2010Date of Patent: March 1, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
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Publication number: 20110039203Abstract: 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: ApplicationFiled: October 21, 2010Publication date: February 17, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: CHRISTOPHER P. JUNK, MARK ANDREW HARMER, ANDREW EDWARD FEIRING, FRANK LEONARD SCHADT, III, ZOE SCHNEPP
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Publication number: 20110031441Abstract: 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: ApplicationFiled: October 15, 2010Publication date: February 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAY INCInventors: 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
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Patent number: 7838684Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 23, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7838679Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 23, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7837901Abstract: 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: GrantFiled: June 27, 2006Date of Patent: November 23, 2010Assignees: E. I. du Pont de Nemours and Company, DuPont Displays IncInventors: 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
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Patent number: 7834209Abstract: 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: GrantFiled: June 6, 2006Date of Patent: November 16, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Christopher P. Junk, Mark Andrew Harmer, Andrew Edward Feiring, Frank Leonard Schadt, III, Zoe Schnepp
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Patent number: 7834192Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 16, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7834189Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 16, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7829704Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 9, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7829710Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 9, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery
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Patent number: 7829725Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 9, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Christopher P. Junk, Jemma Vickery