Patents by Inventor Daryl Vanbesien
Daryl Vanbesien 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: 7514195Abstract: Toner compositions provide a resin substantially free of cross linking; a cross linked resin; a wax; a coagulant; and a colorant; wherein the toner composition provides a fused image gloss of about 1 to about 20 gloss units.Type: GrantFiled: December 3, 2004Date of Patent: April 7, 2009Assignee: Xerox CorporationInventors: Edward G. Zwartz, T. Brian McAneney, Daryl Vanbesien, Patricia A. Burns, T. Hwee Ng
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Publication number: 20080241724Abstract: Toner compositions of toner particles including additive particles upon an external surface of the toner particles, wherein the additive particles include crosslinked styrene containing polymer particles, exhibit reduced sensitivity to relative humidity. The crosslinked styrene containing polymer particles have an average particle size of from about 30 nm to about 300 nm, and may include styrene homopolymer particles, styrene copolymer particles or mixtures thereof. A process of reducing the relative humidity sensitivity of toner using such external surface additive is also described.Type: ApplicationFiled: June 11, 2008Publication date: October 2, 2008Applicant: XEROX CORPORATIONInventors: Maria N.V. MCDOUGALL, Daryl Vanbesien, Allan K. Chen, Richard P.N. Veregin, Vladislav Skorokhod
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Patent number: 7413842Abstract: A toner process comprising aggregating or coagulating a latex emulsion comprising a resin, a colorant and wax particles using an amount of polymetal ion coagulant to provide core particles; heating the core particles to provide micron size aggregates; optionally adding a second resin emulsion; adding a sequestering or complexing component and a base to remove the polymetal ion in a controlled manner; further heating the mixture to provide toner particles; and optionally, isolating the toner particles.Type: GrantFiled: August 22, 2005Date of Patent: August 19, 2008Assignee: Xerox CorporationInventors: Daryl Vanbesien, David J. Sanders, Raj D. Patel, Christine D. Anderson, Patricia Ann Burns, Nam-Suk Ro
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Patent number: 7323498Abstract: A wax-tethered photoinitiator that is a photoinitiator compound including a wax chain therein, wherein the photoinitiator compound is activated by ultraviolet radiation, and method of making the same is described. The wax-tethered photoinitiator may be used in a curable wax composition for incorporation into a toner. The wax-tethered photoinitiator exhibits an affinity for the wax phase, thereby insuring its presence in the wax for the initiation of curing thereof.Type: GrantFiled: May 25, 2005Date of Patent: January 29, 2008Assignee: Xerox CorporationInventors: Jennifer L. Belelie, Peter G. Odell, Daryl Vanbesien, Jessica F. Jordao
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Patent number: 7307111Abstract: Polymer particles comprising a cross-linked polymer core and a linear non-cross-linked polymer shell may be formed by emulsion polymerization. The polymer particles may be used in forming toner.Type: GrantFiled: December 16, 2004Date of Patent: December 11, 2007Assignee: Xerox CorporationInventors: Karen A. Moffat, Daryl Vanbesien, Ke Zhou, Paul J. Gerroir, Valerie M. Farrugia, Maria N. V. McDougall, Edward G. Zwartz
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Publication number: 20070224532Abstract: A toner composition includes core toner particles and a shell formed over the core toner particles. The core toner particles include a resin substantially free of cross linking, an optional cross linked resin, a polyester resin, and a colorant. The shell includes a resin containing charge control agent recurring units.Type: ApplicationFiled: March 22, 2006Publication date: September 27, 2007Applicant: XEROX CORPORATIONInventors: Daryl Vanbesien, Cuong Vong, Karen Moffat, Richard Veregin
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Publication number: 20070141496Abstract: A toner composition that includes a resin substantially free of cross linking, a cross linked resin, a polyester resin as a crystalline polyester resin, and a colorant.Type: ApplicationFiled: December 20, 2005Publication date: June 21, 2007Applicant: Xerox CorporationInventors: Daryl VANBESIEN, Raj Patel, Karen Moffat, Edward Zwartz, Cuong Vong
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Publication number: 20070122728Abstract: A method for forming toner particles includes polymerizing monomers to form a latex comprising polymer particles; combining the latex with unsaturated curable resin to form aggregates containing the polymer particles and the unsaturated curable resin particles; and heating the aggregates to form coalesced particles. A toner composition that may be formed by the process described herein contains toner particles containing polymer containing photoinitiator and unsaturated curable resin. Another toner composition that may be formed by the process described herein contains toner particles containing unsaturated curable resin and, on the surface of the toner particles, photoinitiator.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Applicant: XEROX CORPORATIONInventors: Daryl Vanbesien, Jennifer Belelie, Peter Odell, Christine Anderson, Cuong Vong, David Sanders, Aleksey Tabachnik
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Publication number: 20070123601Abstract: The phase change, curable composition comprises curable monomer, photoinitiator that initiates polymerization of the curable monomer, and phase change agent that provides the composition with an increase in viscosity of at least four orders of magnitude, from a first temperature, the first temperature being from 50° C. to 130° C., to a second temperature, the second temperature being from 0° C. to 70° C., wherein the second temperature is at least 10° C. below the first temperature. A coating over an image may be applied by providing a composition comprising curable monomer at a first temperature; applying the composition over the image, the image being at a second temperature; and exposing the composition to radiation to initiate polymerization of the curable monomer. In this process, the composition has a viscosity at the second temperature that is at least four orders of magnitude greater than its viscosity at the first temperature.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Applicant: XEROX CORPORATIONInventors: Jennifer Belelie, Peter Odell, Daryl Vanbesien, Marcel Breton
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Publication number: 20070111128Abstract: Embodiments include a chemical toner composition having a first resin including a styrene vinyl copolymer and having a Tg of from about 46 to about 56° C., b) a second resin including a styrene vinyl copolymer having a Tg of from about 55 to about 65° C., c) a distilled wax having a heat of crystallization and a heat of enthalpy, both from about 1.0 to about 4.0 J/g for every weight percent of the wax used in the chemical toner composition, and wherein the wax has a peak melting point of from about 70 to about 99° C., and d) a colorant, wherein the chemical toner has a gloss of from about 30 to about 80 GGU.Type: ApplicationFiled: November 14, 2005Publication date: May 17, 2007Inventors: Raj Patel, David Sanders, Christine Anderson, Allan Chen, Daryl Vanbesien, Patricia Burns
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Publication number: 20070111129Abstract: A toner composition includes a resin substantially free of cross linking and having a weight average molecular weight of from about 50,000 to about 1,000,000, a wax, a colorant, and a coagulant.Type: ApplicationFiled: November 15, 2005Publication date: May 17, 2007Applicant: XEROX CORPORATIONInventors: Raj Patel, Daryl Vanbesien, Edward Zwartz, Rosa Duque
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Publication number: 20070111130Abstract: A toner composition includes a reactive resin substantially free of cross linking, a wax, and a colorant. The reactive resin can include reactive epoxy and carboxylic acid functional groups.Type: ApplicationFiled: November 15, 2005Publication date: May 17, 2007Applicant: XEROX CORPORATIONInventors: Daryl Vanbesien, Edward Zwartz, Guerino Sacripante, Karen Moffat, Raj Patel
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Publication number: 20070087281Abstract: The toner includes emulsion aggregation toner particles of a binder including a non-crosslinked styrene acrylate polymer, at least one colorant, at least one wax, and aluminized silica, wherein an amount of aluminum metal in the toner particles is from about 50 ppm to about 600 ppm. Such toner is able to provide a high level of gloss while maintaining a low minimum fixing temperature. The aluminized silica acts as a coagulant during the emulsion aggregation formation process of the toner.Type: ApplicationFiled: October 17, 2005Publication date: April 19, 2007Applicant: XEROX CORPORATIONInventors: Raj Patel, Daryl Vanbesien, David Sanders, Allan Chen
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Publication number: 20070065745Abstract: The toner described herein contains toner particles containing polymer, colorant and cross-linked polymer. The cross-linked polymer is incorporated at least in the shell of the toner particles. Incorporating cross-linked polymer in the shell of the toner particles provide bumps in the surface of the toner particles. These bumps can behave as spacers. Such toner can be formed by aggregating at least polymer particles and colorant particles to form core particles; aggregating at least cross-linked polymer particles to the surface of the core particles; and coalescing the resulting particles to form toner particles.Type: ApplicationFiled: September 19, 2005Publication date: March 22, 2007Applicant: Xerox CorporationInventors: Paul Gerroir, Daryl Vanbesien, Vladislav Skorokhod, Maria McDougall, Eric Strohm, Edward Zwartz
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Publication number: 20070042286Abstract: A toner process comprising aggregating or coagulating a latex emulsion comprising a resin, a colorant and wax particles using an amount of polymetal ion coagulant to provide core particles; heating the core particles to provide micron size aggregates; optionally adding a second resin emulsion; adding a sequestering or complexing component and a base to remove the polymetal ion in a controlled manner; further heating the mixture to provide toner particles; and optionally, isolating the toner particles.Type: ApplicationFiled: August 22, 2005Publication date: February 22, 2007Inventors: Daryl Vanbesien, David Sanders, Raj Patel, Christine Anderson, Patricia Burns, Nam-Suk Ro
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Publication number: 20070003855Abstract: Toner particles, preferably emulsion aggregation toner particles, have improved relative humidity sensitivity through inclusion therein of silicate clay particles such as kaolin clay. The toner particles include a binder, preferably an acrylate-containing binder, at least one colorant, and silicate clay particles distributed in the binder. In a core-shell embodiment, the silicate particles are distributed in the core, the shell layer, or both. Developers of the toner in combination with carrier particles are also described.Type: ApplicationFiled: July 1, 2005Publication date: January 4, 2007Applicant: XEROX CORPORATIONInventors: Richard Veregin, Daryl Vanbesien, Cuong Vong
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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: 20060270754Abstract: A wax-tethered photoinitiator that is a photoinitiator compound including a wax chain therein, wherein the photoinitiator compound is activated by ultraviolet radiation, and method of making the same is described. The wax-tethered photoinitiator may be used in a curable wax composition for incorporation into a toner. The wax-tethered photoinitiator exhibits an affinity for the wax phase, thereby insuring its presence in the wax for the initiation of curing thereof.Type: ApplicationFiled: May 25, 2005Publication date: November 30, 2006Applicant: XEROX CORPORATIONInventors: Jennifer Belelie, Peter Odell, Daryl Vanbesien, Jessica Jordao
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Publication number: 20060269858Abstract: Toner compositions comprising toner particles including additive particles upon an external surface of the toner particles, wherein the additive particles include crosslinked styrene containing polymer particles, exhibit reduced sensitivity to relative humidity. The crosslinked styrene containing polymer particles preferably have an average particle size of from about 30 nm to about 300 nm, and may comprise styrene homopolymer particles, styrene copolymer particles or mixtures thereof. A process of reducing the relative humidity sensitivity of toner using such external surface additive is also described.Type: ApplicationFiled: May 31, 2005Publication date: November 30, 2006Applicant: XEROX CORPORATIONInventors: Maria McDougall, Daryl Vanbesien, Allan Chen, Richard Veregin, Vladislav Skorokhod
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Publication number: 20060222989Abstract: A toner is disclosed that includes a toner binder of a styrene/acrylate resin containing carboxylic acid substituents and epoxy substituents, and optionally a colorant and/or wax. The carboxylic acid substituents act as a curing agent and react with the epoxy substituents, causing rapid crosslinking of the toner. Curing occurs during the fusing process and at a temperature greater than 100° C.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Applicant: XEROX CORPORATIONInventors: Daryl Vanbesien, Ke Zhou, Guerino Sacripante