Patents by Inventor Kevin F. Marcell
Kevin F. Marcell 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: 10175593Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.Type: GrantFiled: August 29, 2016Date of Patent: January 8, 2019Assignee: XEROX CORPORATIONInventors: Judith M. Vandewinckel, Kevin F. Marcell, Chieh-Min Cheng, Brian J. Marion, Scott M. Smith
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Publication number: 20180059559Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.Type: ApplicationFiled: August 29, 2016Publication date: March 1, 2018Inventors: Judith M. Vandewinckel, Kevin F. Marcell, Chieh-Min Cheng, Brian J. Marion, Scott M. Smith
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Patent number: 9901848Abstract: A stabilizer disc for a liquid that reduces or prevents the formation of a foam on an upper surface of the liquid. The stabilizer disc has a width and a height, wherein the width is greater than the height. The stabilizer disc further has a surface roughness within a disclosed range of surface roughness (i.e., surface finish) values. Further, a plurality of stabilizer discs may be used to cover a disclosed percentage of a surface area of the fluid. A method for reducing the formation of a foam on the liquid within a container during transport and/or storage is also described.Type: GrantFiled: October 15, 2014Date of Patent: February 27, 2018Assignee: XEROX CORPORATIONInventors: Judith M. Vandewinckel, Monica B. Skerker, Kevin F. Marcell, Michael L. Mehan
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Patent number: 9663615Abstract: A method of synthesizing a branched polyester resin. Particularly, the method includes an alkoxylation reaction that includes reacting a monomer bisphenol A with a cyclic alkylene carbonate.Type: GrantFiled: February 5, 2016Date of Patent: May 30, 2017Assignee: XEROX CORPORATIONInventors: Karen A. Moffat, Shigang S. Qiu, Yulin Wang, Kevin F. Marcell, Wafa F. Bashir, Richard P N Veregin, John Lawrence Pawlak, Christopher M. Wolfe
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Publication number: 20160107102Abstract: A stabilizer disc for a liquid that reduces or prevents the formation of a foam on an upper surface of the liquid. The stabilizer disc has a width and a height, wherein the width is greater than the height. The stabilizer disc further has a surface roughness within a disclosed range of surface roughness (i.e., surface finish) values. Further, a plurality of stabilizer discs may be used to cover a disclosed percentage of a surface area of the fluid. A method for reducing the formation of a foam on the liquid within a container during transport and/or storage is also described.Type: ApplicationFiled: October 15, 2014Publication date: April 21, 2016Inventors: Judith M. Vandewinckel, Monica B. Skerker, Kevin F. Marcell, Michael L. Mehan
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Patent number: 9316936Abstract: The disclosure describes a pigment of certain surface area for use in toner.Type: GrantFiled: August 28, 2013Date of Patent: April 19, 2016Assignee: Xerox CorporationInventors: Kevin F Marcell, Maria M Barden, Kimberly Anne Stoll, Christopher M Wolfe, Brian J Andaya
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Patent number: 9229344Abstract: Unsaturated polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The unsaturated polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions that have improved performance.Type: GrantFiled: April 17, 2014Date of Patent: January 5, 2016Assignee: XEROX CORPORATIONInventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
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Patent number: 9223239Abstract: Amorphous polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The amorphous polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions the have improved performance.Type: GrantFiled: April 17, 2014Date of Patent: December 29, 2015Assignee: XEROX CORPORATIONInventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
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Patent number: 9187605Abstract: A process includes dissolving a polyester resin in an organic solvent to form a solution, the polyester resin has a latex-destabilizing cation, removing substantially all of the latex-destabilizing cation, neutralizing the solution of the polyester resin, adding a sufficient amount of water to the neutralized solution form an emulsion, and removing a portion of the organic solvent from the emulsion to form a latex of the polyester resin.Type: GrantFiled: July 18, 2013Date of Patent: November 17, 2015Assignee: XEROX CORPORATIONInventors: Yulin Wang, Karen Moffat, John L. Pawlak, Kevin F. Marcell, Steven M. Malachowski
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Publication number: 20150301466Abstract: Amorphous polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The amorphous polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions the have improved performance.Type: ApplicationFiled: April 17, 2014Publication date: October 22, 2015Applicant: XEROX CORPORATIONInventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P.N. Veregin, Christopher M. Wolfe
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Publication number: 20150301467Abstract: Unsaturated polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The unsaturated polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions that have improved performance.Type: ApplicationFiled: April 17, 2014Publication date: October 22, 2015Applicant: XEROX CORPORATIONInventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P.N. Veregin, Christopher M. Wolfe
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Patent number: 9152063Abstract: The present disclosure provides a toner comprising a bioresin and two waxes with improved fuser release.Type: GrantFiled: June 27, 2013Date of Patent: October 6, 2015Assignee: Xerox CorporationInventors: Mark E Mang, Juan A Morales-Tirado, Tab A Tress, Kevin F Marcell, Brian J Andaya
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Publication number: 20150072283Abstract: The disclosure describes a pigment of certain surface area for use in toner.Type: ApplicationFiled: August 28, 2013Publication date: March 12, 2015Applicant: Xerox CorporationInventors: Kevin F. Marcell, Maria M. Barden, Kimberly Anne Stoll, Christopher M. Wolfe, Brian J. Andaya
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Publication number: 20150025174Abstract: A process includes dissolving a polyester resin in an organic solvent to form a solution, the polyester resin has a latex-destabilizing cation, removing substantially all of the latex-destabilizing cation, neutralizing the solution of the polyester resin, adding a sufficient amount of water to the neutralized solution form an emulsion, and removing a portion of the organic solvent from the emulsion to form a latex of the polyester resin.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventors: Yulin Wang, Karen Moffat, John L. Pawlak, Kevin F. Marcell, Steven M. Malachowski
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Publication number: 20150004381Abstract: The present disclosure provides a toner comprising a bioresin and two waxes with improved fuser release.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Applicant: Xerox CorporationInventors: Mark E. Mang, Juan A. Morales-Tirado, Tab A. Tress, Kevin F. Marcell, Brian J. Andaya
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Patent number: 8603721Abstract: Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.Type: GrantFiled: April 6, 2011Date of Patent: December 10, 2013Assignee: Xerox CorporationInventors: Thomas P Debies, Timothy L Lincoln, Kevin F Marcell
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Patent number: 8455171Abstract: The present disclosure provides processes for reducing the particle size of latex resins and toners produced with such resins. In embodiments, a carboxylic acid may be added to materials utilized to produce a latex and reduce the particle size of the resulting latex particles and toner particles. In accordance with the present disclosure, one may be able to utilize materials for the production of latex resins and toners which may otherwise produce particles that are too large in the absence of the carboxylic acid.Type: GrantFiled: May 31, 2007Date of Patent: June 4, 2013Assignee: Xerox CorporationInventors: Robert D. Bayley, Timothy L. Lincoln, Kevin F. Marcell, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Chieh-Min Cheng, Zhen Lai
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Publication number: 20120258396Abstract: Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.Type: ApplicationFiled: April 6, 2011Publication date: October 11, 2012Applicant: XEROX CORPORATIONInventors: Thomas P. Debies, Timothy L. Lincoln, Kevin F. Marcell
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Patent number: 8211609Abstract: The present disclosure provides toners including amorphous resins and crystalline resins. Toners with high glass transition temperatures and little plasticization may be obtained in accordance with the present disclosure.Type: GrantFiled: November 14, 2007Date of Patent: July 3, 2012Assignee: Xerox CorporationInventors: Mark E. Mang, Timothy L. Lincoln, Yuhua Tong, Kevin F. Marcell
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Patent number: 7749670Abstract: Embodiments include a toner with a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.Type: GrantFiled: November 14, 2005Date of Patent: July 6, 2010Assignee: Xerox CorporationInventors: Raj D. Patel, David J. Sanders, T Hwee Ng, Stephan V. Drappel, Sandra J. Gardner, Sonja Hadzidedic, Louis V. Isganitis, Timothy L. Lincoln, Kevin F. Marcell