Patents by Inventor Kimberly Nosella
Kimberly Nosella 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: 9612549Abstract: The present disclosure describes a cartridge with a black toner of reduced dielectric loss and improved tribo charging.Type: GrantFiled: October 10, 2015Date of Patent: April 4, 2017Assignee: XEROX CORPORATIONInventors: Daryl W Vanbesien, Majid Kamel, Cuong Vong, Suxia Yang, Kimberly Nosella, Richard P N Veregin, Tie Hwee Ng
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Patent number: 9017910Abstract: The present disclosure provides a toner resin comprising a polyhedral oligomeric silsesquioxane moiety that may be used in manufacturing an emulsion aggregation (EA) toner for imaging devices.Type: GrantFiled: October 14, 2012Date of Patent: April 28, 2015Assignee: Xerox CorporationInventors: Valerie Farrugia, Kimberly Nosella
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Patent number: 8916098Abstract: A continuous emulsion aggregation process for the production of particles is presented including a plurality of continuous stirred-tank reactors (CSTR). The plurality of continuous stirred-tank reactors includes at least one feed tank of raw materials, at least one reactor for facilitating cold addition, at least two reactors for facilitating an aggregation process, at least one reactor for facilitating a shell addition process; at least one reactor for facilitating a freeze process, at least one reactor for facilitating a chelating process, at least one reactor for facilitating a ramp-up process and at least one reactor for facilitating a coalescence process, wherein the reactors are sequentially assembled in a series configuration and separated by short conduits to produce toner particles that are narrowly distributed.Type: GrantFiled: March 28, 2012Date of Patent: December 23, 2014Assignee: Xerox CorporationInventors: Santiago Faucher, Kimberly Nosella, David Thomas Borbely, Gaetano Lavigne, Simon Burke
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Patent number: 8790856Abstract: The present disclosure describes toner compositions containing an additive package including one or more additives that exhibit low dielectric loss, which toners exhibit improved tribo charging, 2nd transfer efficiency and IQ without affecting color.Type: GrantFiled: November 9, 2011Date of Patent: July 29, 2014Assignee: Xerox CorporationInventors: Suxia Yang, Richard P N Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
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Patent number: 8741532Abstract: The disclosure describes a toner process in which portion-wise addition of colorant(s) during particle formation is used to control the distribution of colorant within the toner particle, thereby enhancing A zone charge.Type: GrantFiled: September 30, 2011Date of Patent: June 3, 2014Assignee: Xerox CorporationInventors: Ke Zhou, Shigang Qiu, Kimberly Nosella, Cuong Vong
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Patent number: 8735033Abstract: A process for making emulsion aggregation (EA) toners is provided. In embodiments, the process comprises aggregating a mixture comprising a latex resin, and at least one colorant in a reactor to form aggregated toner particles, adding a shell resin to form a shell over the aggregated toner particles, coalescing the aggregated toner particles, and recovering the toner particles.Type: GrantFiled: March 29, 2012Date of Patent: May 27, 2014Assignee: Xerox CorporationInventors: Yulin Wang, Kimberly Nosella, David Kurceba, Santiago Faucher
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Publication number: 20140106274Abstract: The present disclosure provides a toner resin comprising a polyhedral oligomeric silsesquioxane moiety that may be used in manufacturing an emulsion aggregation (EA) toner for imaging devices.Type: ApplicationFiled: October 14, 2012Publication date: April 17, 2014Applicant: XEROX CORPORATIONInventors: Valerie Farrugia, Kimberly Nosella
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Patent number: 8691488Abstract: The present disclosure describes a toner produced using a coalescing temperature lower than the melting point of a wax in the toner, quench cooling or both. The resulting toners can exhibit reduced dielectric loss and improved tribo charging.Type: GrantFiled: March 29, 2012Date of Patent: April 8, 2014Assignee: Xerox CorporationInventors: Melanie Davis, Kimberly Nosella, Suxia Yang, Daryl Vanbesien, Richard P. N. Veregin
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Patent number: 8673530Abstract: The present disclosure describes toner compositions comprising an alkyl surface-treated silica, which toners exhibit improved tribo-charging, second transfer efficiency and IQ without impacting color.Type: GrantFiled: November 9, 2011Date of Patent: March 18, 2014Assignee: Xerox CorporationInventors: Suxia Yang, Richard P N Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
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Publication number: 20130260308Abstract: The present disclosure describes a toner produced using a coalescing temperature lower than the melting point of a wax in the toner, quench cooling or both. The resulting toners can exhibit reduced dielectric loss and improved tribo charging.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Applicant: XEROX CORPORATIONInventors: Melanie Davis, Kimberly Nosella, Suxia Yang, Daryl Vanbesien, Richard P.N. Veregin
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Publication number: 20130260310Abstract: A process for making emulsion aggregation (EA) toners is provided. In embodiments, the process comprises aggregating a mixture comprising a latex resin, and at least one colorant in a reactor to form aggregated toner particles, adding a shell resin to form a shell over the aggregated toner particles, coalescing the aggregated toner particles, and recovering the toner particles.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Applicant: XEROX CORPORATIONInventors: Yulin Wang, Kimberly Nosella, David Kurceba, Santiago Faucher
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Publication number: 20130115548Abstract: The present disclosure describes toner compositions comprising an alkyl surface-treated silica, which toners exhibit improved tribo-charging, second transfer efficiency and IQ without impacting color.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Applicant: XEROX CORPORATIONInventors: Suxia Yang, Richard PN Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
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Publication number: 20130115549Abstract: The present disclosure describes toner compositions containing an additive package including one or more additives that exhibit low dielectric loss, which toners exhibit improved tribo charging, 2nd transfer efficiency and IQ without affecting color.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Applicant: XEROX CORPORATIONInventors: Suxia Yang, Richard P.N. Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
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Publication number: 20130084519Abstract: The disclosure describes a toner process in which portion-wise addition of colorant(s) during particle formation is used to control the distribution of colorant within the toner particle, thereby enhancing A zone charge.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: XEROX CORPORATIONInventors: Ke Zhou, Shigang Qiu, Kimberly Nosella, Cuong Vong
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Publication number: 20120208122Abstract: A continuous emulsion aggregation process for the production of particles is presented including a plurality of continuous stirred-tank reactors (CSTR). The plurality of continuous stirred-tank reactors includes at least one feed tank of raw materials, at least one reactor for facilitating cold addition, at least two reactors for facilitating an aggregation process, at least one reactor for facilitating a shell addition process; at least one reactor for facilitating a freeze process, at least one reactor for facilitating a chelating process, at least one reactor for facilitating a ramp-up process and at least one reactor for facilitating a coalescence process, wherein the reactors are sequentially assembled in a series configuration and separated by short conduits to produce toner particles that are narrowly distributed.Type: ApplicationFiled: March 28, 2012Publication date: August 16, 2012Applicant: XEROX CORPORATIONInventors: Santiago Faucher, Kimberly Nosella, David Thomas Borbely, Gaetano Lavigne, Simon Burke
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Patent number: 7358022Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during the aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. The complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.Type: GrantFiled: March 31, 2005Date of Patent: April 15, 2008Assignee: Xerox CorporationInventors: Valerie M. Farrugia, Allan K. Chen, Kimberly Nosella, Raj D. Patel, Tie Hwee Ng
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Publication number: 20070077510Abstract: A toner of a sulfonated polyester resin and at least one colorant is made to contain from about 0.01% by weigh to about 3% by weight of dry toner in total of lithium, sodium, zinc and calcium. The sulfonated polyester resin may be an alkali metal sulfonated polyester resin, wherein the alkali metal may be sodium and/or lithium. The toner may be formed in an emulsion aggregation process in which an alkali (II) metal salt such as a zinc salt and/or a calcium salt is used as an aggregating agent.Type: ApplicationFiled: September 30, 2005Publication date: April 5, 2007Applicant: Xerox CorporationInventors: Kimberly Nosella, Guerino Sacripante, Allan Chen, Valerie Farrugia, Ke Zhou
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Publication number: 20060286476Abstract: Provided are a latex process and a toner process, both of which include the preparation of a latex having weight average molecular weight of from about 12×103 to about 24×103. The latex is manufactured under monomer-starved polymerization condition such as monomer feeding rate equal to or less than 0.5166% per minute by weight of the monomer(s) to be fed. The toners prepared according to the present disclosure have gained improved properties such as gloss, fusing performance, crease performance, stripping performance, document offset, vinyl offset, and parent charging etc.Type: ApplicationFiled: June 20, 2005Publication date: December 21, 2006Inventors: Daryl Vanbesien, Karen Moffat, Emily Moore, Kimberly Nosella, David Sanders, Christine Anderson, Cuong Vong
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Publication number: 20060222990Abstract: A method of making particles suitable for use as toners includes forming a mixture of sulfonated olyester resin, a colorant dispersion and optionally a wax dispersion, homogenizing the mixture, adding a coagulant to the mixture to aggregate the mixture to form aggregated particles, and coalescing the aggregated particles to form coalesced particles. In the method, when a predetermined average particle size is achieved during the aggregation and/or coalescing step, a complexing agent that complexes with ions of the coagulant is added in an amount effective to substantially halt any further particle growth. The complexing agent is believed to halt further growth by complexing with free coagulant ions still in the solution.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Applicant: XEROX CORPORATIONInventors: Valerie Farrugia, Allan Chen, Kimberly Nosella, Raj Patel, Tie Ng
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Publication number: 20060216626Abstract: A toner having an amorphous resin, a crystalline resin, and a colorant, wherein the crystalline resin has a melting temperature of at least 70° C. and a recrystallization point of at least 47° C. exhibits improved document offset properties and improved heat cohesion. Annealing the toner further improves the heat cohesion and morphology of the toner.Type: ApplicationFiled: March 25, 2005Publication date: September 28, 2006Applicant: Xerox CorporationInventors: Guerino Sacripante, Ke Zhou, Michael Hawkins, Kimberly Nosella, Edward Zwartz, Nicoleta Mihai, Valerie Farrugia, Stephan Drappel, Paul Gerroir