Patents by Inventor Patricia Tooley
Patricia Tooley 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: 8674042Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: November 10, 2011Date of Patent: March 18, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Publication number: 20120058256Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: November 10, 2011Publication date: March 8, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Thomas Robert Earnest, JR., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 8076431Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: July 25, 2008Date of Patent: December 13, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 7592406Abstract: The combination of a hinge and an insulated wire is provided, wherein the hinge is capable of closing and opening to an angle of at least 90°, the insulated wire being secured by the hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, the insulation on the wire comprising fluoropolymer, such as tetrafluoroethylene/-hexafluoropropylene copolymer or tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, each polymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, the hinge being useful in such electronic devices as a laptop computer or a clamshell cell phone, attaching the keyboard and screen portion to one another, the insulation being capable of repeated opening and closing of the hinge without cracking of the insulation.Type: GrantFiled: October 9, 2007Date of Patent: September 22, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert D. Kenny, Philip S. Smith, Patricia A. Tooley, Sundar Kilnagar Venkataraman
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Publication number: 20080293904Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: July 25, 2008Publication date: November 27, 2008Applicant: E. I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, JR., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 7435786Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: August 16, 2006Date of Patent: October 14, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel N. Favereau, Niall D. McKee, Patricia A. Tooley
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Publication number: 20080145584Abstract: Multilayered composite articles comprising a first layer comprising melt-extrudable perfluoropolymer, a second layer comprising a fluoropolymer derived from tetrafluoroethylene, at least one perfluorinated ?-olefin; and vinylidene fluoride. The articles may be in the form of pipes, tubes, and hoses.Type: ApplicationFiled: November 15, 2007Publication date: June 19, 2008Inventors: Robert B. Fish, Steven A. Mestemacher, Patricia A. Tooley, Kimberly Dawn Farnsworth
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Publication number: 20080090065Abstract: The combination of a hinge and an insulated wire is provided, wherein the hinge is capable of closing and opening to an angle of at least 90°, the insulated wire being secured by the hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, the insulation on the wire comprising fluoropolymer, such as tetrafluoroethylene/-hexafluoropropylene copolymer or tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, each polymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, the hinge being useful in such electronic devices as a laptop computer or a clamshell cell phone, attaching the keyboard and screen portion to one another, the insulation being capable of repeated opening and closing of the hinge without cracking of the insulation.Type: ApplicationFiled: October 9, 2007Publication date: April 17, 2008Inventors: Robert D. Kenny, Philip S. Smith, Patricia A. Tooley, Sundar Kilnagar Venkataraman
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Publication number: 20070292685Abstract: Perfluoropolymer made without ionic species, initiator and without halocarbon solvent polymerization medium and dispersing agent is beneficially useful in liquid contact or food contact applications, for high-speed melt extrusion wire coating, and to produce insulated wire exhibiting low dissipation factor at high signal frequencies.Type: ApplicationFiled: June 1, 2007Publication date: December 20, 2007Inventors: Paul Brothers, John Netta, Charles Noelke, Philip Smith, Etsuya Taki, Patricia Tooley
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Publication number: 20070036926Abstract: Multilayered pipes comprising layers of functionalized melt-extrudable fluoropolymer, polyamide, and reinforcing fiber. Optional additional layers include melt-extrudable fluoropolymer and a thermoplastic polymer layer. The pipes are particularly useful in district heating applications.Type: ApplicationFiled: August 7, 2006Publication date: February 15, 2007Inventors: Robert Fish, Steven Mestemacher, Patricia Tooley
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Publication number: 20060276604Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: August 16, 2006Publication date: December 7, 2006Inventors: Thomas Earnest, Daniel Favereau, Niall McKee, Patricia Tooley
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Patent number: 7126056Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: September 10, 2004Date of Patent: October 24, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 7122609Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to a hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: GrantFiled: June 21, 2004Date of Patent: October 17, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Publication number: 20050080211Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: September 10, 2004Publication date: April 14, 2005Inventors: Thomas Earnest, Daniel Favereau, Niall McKee, Patricia Tooley
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Publication number: 20040260044Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: June 21, 2004Publication date: December 23, 2004Inventors: Thomas Robert Earnest, Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Publication number: 20040242819Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.Type: ApplicationFiled: April 27, 2004Publication date: December 2, 2004Inventors: Thomas Robert Earnest, Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
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Patent number: 6429237Abstract: A process for high speed melt extrusion onto wire conductors of fluoropolymer pigmented with oxide-coated titanium dioxide.Type: GrantFiled: April 11, 2001Date of Patent: August 6, 2002Assignee: E. I. du Pont de Nemours & CompanyInventor: Patricia A. Tooley
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Publication number: 20020002216Abstract: A process for high speed melt extrusion onto wire conductors of fluoropolymer pigmented with oxide-coated titanium dioxide.Type: ApplicationFiled: April 11, 2001Publication date: January 3, 2002Inventor: Patricia A. Tooley
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Patent number: 5631310Abstract: White-pigmented polymers (particularly, polyolefins such as polyethylene) containing white pigments treated with at least one silane or a mixture of at least one silane and at least one polysiloxane are disclosed to improve processibility in compounding and improve performance properties such as lacing resistance in a polymeric matrix.Type: GrantFiled: June 7, 1995Date of Patent: May 20, 1997Assignee: E. I. du Pont de Nemours and CompanyInventors: Patricia A. Tooley, Dwight A. Holtzen, Joseph A. Musiano
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Patent number: 5607994Abstract: White-pigmented polymers (particularly, polyolefins such as polyethylene) containing white pigments treated with at least one silane or a mixture of at least one silane and at least one polysiloxane are disclosed to improve processibility in compounding and improve performance properties such as lacing resistance in a polymeric matrix.Type: GrantFiled: February 28, 1994Date of Patent: March 4, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Patricia A. Tooley, Dwight A. Holtzen, Joseph A. Musiano