Patents by Inventor Thomas C. Felder
Thomas C. Felder 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: 8440383Abstract: Thermal imaging donors are useful for thermal transfer patterning of a metal layer and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers. These include electromagnetic interference shields and touchpad sensors.Type: GrantFiled: January 26, 2011Date of Patent: May 14, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V. Caspar, John Catron, Jr., Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Neil, Rinaldo Soria Schiffino, Nancy G. Tassi
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Patent number: 8308886Abstract: The invention discloses processes for thermal transfer patterning of a nanoparticle layer and a corresponding proximate portion of a carrier layer, and optionally additional transfer layers, together onto a thermal imaging receiver. The invention is useful for dry fabrication of electronic devices. Additional embodiments of the invention include multilayer thermal imaging donors comprising in layered sequence: a base film, a carrier layer and a nanoparticle layer. The carrier layer can be a dielectric or conducting layer. When the carrier layer is a dielectric layer, the base film includes a light attenuating agent in the form of a dye or pigment.Type: GrantFiled: July 17, 2006Date of Patent: November 13, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Gerald Donald Andrews, Marc B Goldfinger, Mark Andrew Harmer, Gary Delmar Jaycox, Lynda Kaye Johnson, Irina Malajovich, William J Marshall, Elizabeth Forrester McCord, Charles Nehemiah McEwen, Jeffrey Scott Meth, Richard Kevin Bailey, Geoffrey Nunes, Rinaldo Soria Schiffino, Paul J Shannon, Kenneth George Sharp, Karyn B Visscher, Graciela Beatriz Blanchet, John W Catron, Jr., Reid John Chesterfield, Thomas C Felder, Feng Gao, Howard David Glicksman
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Publication number: 20110244390Abstract: This invention pertains to a donor element for use with a receiver element in an imagable assemblage for light-induced transfer of material from the donor element to the receiver element. Specifically, this invention relates to such a donor element comprising a copolymer based on styrene and maleic anhydride.Type: ApplicationFiled: April 19, 2007Publication date: October 6, 2011Inventors: Thomas C. Felder, Christopher Ferguson, Richard Paul Pankratz, Julian Neal Robinson, Debra S. Strickland
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Publication number: 20110151153Abstract: Provided are donor articles comprising a donor substrate and a conductive layer, wherein the conductive layer comprises (a) at least one electrically conductive polymer; (b) a binder comprising a polymer selected from the group consisting of poly(2-alkyl-2-oxazoline), poly(vinylpyrrolidone-co-vinyl acetate), polyvinyl acetal, poly(3-morpholinylethylene), poly(2,4-dimethyl-6-triazinylethylene), poly(N-1,2,4-triazolylethylene), poly(vinylsulfate), poly(vinylformamide), and poly[N-(p-sulfophenyl)imino-3-hydroxymethyl-1,4-phenyleneimino-1,4-phenylene] or a combination thereof; and (c) a polyanion. Also provided are methods of transferring at least a portion of an electrically conductive layer from such a donor article to a receiver, the patterned receivers and patterned donor articles made by such methods, electronic devices comprising the patterned receivers, and electronic devices comprising the patterned donor articles.Type: ApplicationFiled: December 15, 2010Publication date: June 23, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: THOMAS C. FELDER, Feng Gao, Lynda Kaye Johnson, Haixin Yang
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Publication number: 20110151214Abstract: Thermal imaging donors are useful for thermal transfer patterning of a metal layer and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers. These include electromagnetic interference shields and touchpad sensors.Type: ApplicationFiled: January 26, 2011Publication date: June 23, 2011Applicant: E.I.DU PONT DE NEMOURS AND COMPANYInventors: Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V. Caspar, John Catron, Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Nell, Rinaldo S. Schiffino, Nancy G. Tassi
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Patent number: 7901596Abstract: Metal compositions including silver compositions are used in preparing thermal imaging donors. The donors are useful for thermal transfer patterning of a metal layer and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers, including EMI shields and touchpad sensors.Type: GrantFiled: June 19, 2009Date of Patent: March 8, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V Caspar, John Catron, Jr., Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Neil, Rinaldo Soria Schiffino, Nancy G. Tassi
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Publication number: 20100239794Abstract: The invention discloses processes for thermal transfer patterning of a nanoparticle layer and a corresponding proximate portion of a carrier layer, and optionally additional transfer layers, together onto a thermal imaging receiver. The invention is useful for dry fabrication of electronic devices. Additional embodiments of the invention include multilayer thermal imaging donors comprising in layered sequence: a base film, a carrier layer and a nanoparticle layer. The carrier layer can be a dielectric or conducting layer. When the carrier layer is a dielectric layer, the base film includes a light attenuating agent in the form of a dye or pigment.Type: ApplicationFiled: July 17, 2006Publication date: September 23, 2010Inventors: Gerald Donald Andrews, Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V. Caspar, John Catron, Reid John Chesterfield, Thomas C. Felder, Feng Gao, Howard David Glicksman, Marc B. Goldfinger, Mark Andrew Harmer, Gary Delmar Jaycox, Lynda Kaye Johnson, Dalen E. Keys, Irina Malajovich, William J. Marshall, Elizabeth Forrester McCord, Charles Nehemiah McEwen, Jeffrey Scott Meth, Geoffrey Nunes, Rinaldo S. Schiffino, Paul J. Shannon, Kenneth George Sharp, Nancy G. Tassi, Karyn B. Visscher
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Patent number: 7763411Abstract: A donor element useful in an assemblage for imaging by exposure to light comprises a support layer, a light-to-heat conversion layer disposed adjacent the support layer containing a light absorber, and a transfer layer disposed adjacent the light-to-heat conversion layer opposite the support layer. The donor element also includes a release-modifier disposed between the support layer and the transfer layer.Type: GrantFiled: October 20, 2005Date of Patent: July 27, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas C. Felder, Robert William Eveson, Christopher Ferguson, James R. Joiner, Moira Logan, Richard Paul Pankratz, Fredrick Claus Zumsteg, Jr.
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Publication number: 20090297739Abstract: The invention provides metal compositions, including silver compositions, and thermal imaging donors prepared with the compositions. The donors are useful for thermal transfer patterning of a metal layers and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers, including EMI shields and touchpad sensors.Type: ApplicationFiled: June 19, 2009Publication date: December 3, 2009Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Richard Kevin Baily, Graciela Beatriz Blanchet, Jonathan V. Caspar, John Catron, Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Neil, Rinaldo S. Schiffino, Nancy G. Tassi
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Patent number: 7582403Abstract: The invention provides metal compositions, including silver compositions, and thermal imaging donors prepared with the compositions. The donors are useful for thermal transfer patterning of a metal layers and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers, including EMI shields and touchpad sensors.Type: GrantFiled: July 17, 2006Date of Patent: September 1, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V. Caspar, John W. Catron, Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Neil, Rinaldo S. Schiffino, Nancy G. Tassi
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Publication number: 20090047596Abstract: A donor element useful in an assemblage for imaging by exposure to light comprises a support layer, a light-to-heat conversion layer disposed adjacent the support layer containing a light absorber, and a transfer layer disposed adjacent the light-to-heat conversion layer opposite the support layer. The donor element also includes a release-modifier disposed between the support layer and the transfer layer.Type: ApplicationFiled: October 20, 2005Publication date: February 19, 2009Inventors: Thomas C. Felder, Robert William Eveson, Christopher Ferguson, James R. Joiner, Moira Logan, Richard Paul Pankratz, Fredrick Claus Zumsteg, JR.
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Publication number: 20090047597Abstract: A donor element useful in an assemblage for imaging by exposure to radiation comprises a substrate, a transfer-assist layer disposed adjacent the substrate comprising one or more water-soluble or water-dispersible radiation-absorbing compound(s), and a transfer layer disposed adjacent the transfer-assist layer opposite the substrate.Type: ApplicationFiled: October 20, 2005Publication date: February 19, 2009Inventors: Thomas C. Felder, Robert William Eveson, Christopher Ferguson, James R. Joiner, Moira Logan, Richard Paul Pankratz, Frederick Claus Zumsteg, JR.
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Patent number: 7387864Abstract: A donor element useful in an assemblage for imaging by exposure to light comprises a support layer formed by a stretching process, a light-to-heat conversion layer disposed adjacent the support layer containing a light absorber, and a transfer layer disposed adjacent the light-to-heat conversion layer opposite the support layer. The light-to-heat conversion layer is coated on the support prior to completion of the stretching process.Type: GrantFiled: October 20, 2005Date of Patent: June 17, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas C. Felder, Robert William Eveson, Christopher Ferguson, James R. Joiner, Moira Logan, Richard Paul Pankratz, Fredrick Claus Zumsteg, Jr.
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Publication number: 20080014528Abstract: The invention provides metal compositions, including silver compositions, and thermal imaging donors prepared with the compositions. The donors are useful for thermal transfer patterning of a metal layers and optionally, a corresponding proximate portion of an additional transfer layer onto a thermal imaging receiver. The compositions are useful for dry fabrication of electronic devices. Also provided are patterned multilayer compositions comprising one or more base film(s), and one or more patterned metal layers, including EMI shields and touchpad sensors.Type: ApplicationFiled: July 17, 2006Publication date: January 17, 2008Inventors: Richard Kevin Bailey, Graciela Beatriz Blanchet, Jonathan V. Caspar, John Catron, Reid John Chesterfield, Thomas C. Felder, Feng Gao, Lynda Kaye Johnson, Roupen Leon Keusseyan, Dalen E. Keys, Irina Malajovich, Jeffrey Scott Meth, Geoffrey Nunes, Gerard O'Neil, Rinaldo S. Schiffino, Nancy G. Tassi
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Publication number: 20040023122Abstract: An optical element is disclosed that is resistant to pressure-induced defects and which contains a hologram, an optical diffuser, a microlens array or a lens. The optical element is useful as a component in liquid crystal displays (LCDs) or other types of displays.Type: ApplicationFiled: August 1, 2002Publication date: February 5, 2004Inventors: Thomas C. Felder, Michael G. Fickes, Sylvia H. Stevenson
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Publication number: 20030071948Abstract: A display element comprises a hologram, a barrier layer, and an optically transparent and electrically conductive layer. A film-based method for applying a barrier layer to a hologram without damaging the hologram from contact with solvent(s) is also disclosed.Type: ApplicationFiled: September 27, 2002Publication date: April 17, 2003Inventors: Thomas C. Felder, William John Gambogi, Michael L. Levin
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Patent number: 5208131Abstract: Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) particles, average by area particle size of less than 10 .mu.m, of a degradable polymeric resin as defined, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound.Optionally a colorant and an adjuvant compound are present. Process of preparation of electrostatic liquid developers is described. The developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists. The developer particles can be readily removed from the printed material, such as paper, by degradation of the polymer. If the polymeric resin is depolymerized, the monomer and low molecular weight units can be recycled by being repolymerized, or discarded in a landfill as a biodegradable environmentally benign by-product.Type: GrantFiled: January 10, 1992Date of Patent: May 4, 1993Assignee: DXIMagingInventors: Thomas C. Felder, Thomas M. Ford
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Patent number: 5206108Abstract: A high solids replenishable electrostatic liquid developer concentrate contains toner particles formed from a friable thermoplastic resin The composition created can be concentrated up to 100% toner solids and subsequently sonicated to a working strength dilution. The composition may be formed by reducing the size of toner particles while they are mixed with a toner dispersant, and concentrating the resultant mixture.Type: GrantFiled: December 23, 1991Date of Patent: April 27, 1993Assignee: Xerox CorporationInventors: Thomas C. Felder, Jill R. Lorey, Kenneth W. Leffew
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Patent number: 5019477Abstract: A liquid electrostatic developer comprising: (a) a non-polar liquid having a kauributanol value of less than 30; (b) thermoplastic resin particles comprised of a mixture of (1) a polyethylene homopolymer or a copolymer of (i) polyethylene and (ii) acrylic acid, methacrylic acid or the alkyl esters thereof, wherein (ii) comprises 0.1-20 weight percent of said copolymer and (2) a random copolymer of (iii) selected from the group consisting of vinyltoluene and styrene and (iv) selected from the group consisting of butadiene and acrylate, wherein said thermoplastic resin particles are dispersed in said non-polar liquid form; and (c) an ionic or zwitterionic charge director compound which is soluble in said non-polar liquid.Type: GrantFiled: July 5, 1989Date of Patent: May 28, 1991Assignee: DX ImagingInventor: Thomas C. Felder