Patents by Inventor Timothy L. Lincoln
Timothy L. Lincoln 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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Publication number: 20110196066Abstract: A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one amorphous polyester resin with a viscosity reducing additive in the absence of an organic solvent to form a resin mixture either via an extruder or batch process, and adding a surfactant, neutralizing agent, and deionized water to the resin mixture.Type: ApplicationFiled: February 5, 2010Publication date: August 11, 2011Applicant: XEROX CORPORATIONInventors: Santiago Faucher, Joo T. Chung, Timothy L. Lincoln, Shigang Qiu, Yuhua Tong, Fumii Higuchi, Emine Irmak Serifoglu, Allan K. Chen, Brian J. Andaya, Joseph L. Leonardo
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Publication number: 20110117486Abstract: The present disclosure provides polyesters suitable for use in forming toners. In embodiments, a polyester may be subjected to phase inversion emulsification, in which charge control agents are added so that the polyester emulsion includes charge control agents therein. The resulting polyester emulsion with charge control agents may then be utilized to form toner particles.Type: ApplicationFiled: November 16, 2009Publication date: May 19, 2011Applicant: XEROX CORPORATIONInventors: Robert D. Bayley, Yuhua Tong, Timothy L. Lincoln, Grazyna Kmiecik-Lawrynowicz, Maura A. Sweeney
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Publication number: 20110091801Abstract: The present disclosure provides toners and methods for their production. In embodiments, the amount of coagulant utilized in producing those toners may be less than amounts currently in use, which may have a beneficial effect by reducing the time for coalescence. Modified waxes may also be utilized which provide excellent gloss and charging characteristics.Type: ApplicationFiled: October 15, 2009Publication date: April 21, 2011Applicant: XEROX CORPORATIONInventors: Mark E. Mang, Grazyna Kmiecik-Lawrynowicz, Maura A. Sweeney, Timothy L. Lincoln
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Publication number: 20110086306Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the charge control agents include copolymers formed by an emulsion polymerization process.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: XEROX CORPORATIONInventors: Robert D. Bayley, Yuhua Tong, Timothy L. Lincoln, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Susan J. LaFica, Mark E. Mang
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Publication number: 20100330485Abstract: A toner that includes at least one polyester resin wherein the amount of free polyvalent acid monomer in the polyester resin is less than 4 mg/gram, and wherein the percentage of the at least one polyester resin with a Mw less than 1500 is less than about 10%.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: Xerox CorporationInventors: John L. PAWLAK, Timothy L. LINCOLN, William H. HOLLENBAUGH, JR., Yuhua TONG, Brendan H. WILLIAMSON
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Patent number: 7833684Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics.Type: GrantFiled: November 14, 2007Date of Patent: November 16, 2010Assignee: Xerox CorporationInventors: Timothy L. Lincoln, Yuhua Tong, Robert D. Bayley
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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
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Publication number: 20100092884Abstract: Single component toners are provided with at least one surface additive including a large polymeric spacer, and processes for producing the same. In embodiments, the toner is a non-magnetic single component toner produced by emulsion aggregation methods. The large polymeric spacer additives provide excellent flow characteristics to the resulting toners, and reduce the incidence of clogging failure and print defects such as ghosting, white bands, and low toner density compared with conventionally produced toners.Type: ApplicationFiled: October 15, 2008Publication date: April 15, 2010Applicant: XEROX CORPORATIONInventors: Samir Kumar, Grazyna L. Kmiecik-Lawrynowicz, Maura A. Sweeney, Michael L. Grande, Julie C. Pickering, Timothy L. Lincoln
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Patent number: 7686939Abstract: Embodiments include 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: March 30, 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
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Patent number: 7662272Abstract: Embodiments include a distilled wax having a crystallinity of from about 55 to about 100 percent, wherein the degree of crystallinity is calculated using the following formulas: [Heat of enthalpy (Hm) J/g/294 J/g]×100=degree of crystallinity (Xc); [Heat of recrystallization (Hrc) J/g/294 J/g]×100=degree of crystallinity (Xc); and Sc/(Sc+Sa)]×100%, wherein Sc is a diffraction peak area of a crystalline component of the wax and the Sa is a diffraction peak area of an amorphous component of the wax; and wherein the Mp, Mn and Mw of the wax are all within the range of from about 500 to about 800, and wherein the wax has a polydispersity of from about 1 to about 1.05.Type: GrantFiled: November 14, 2005Date of Patent: February 16, 2010Assignee: Xerox CorporationInventors: Raj D. Patel, David J. Sanders, T Hwee Ng, Stephan V. Drappel, Sandra J. Gardner, Sonja Hadzidedic, Timothy L. Lincoln, Kevin F. Marcell, Louis V. Isganitis
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Publication number: 20090246680Abstract: Processes for continuously forming latex emulsions useful in preparing toners are provided which do not require the use of solvents.Type: ApplicationFiled: March 27, 2008Publication date: October 1, 2009Applicant: Xerox CorporationInventors: Joo T. Chung, Zhen Lai, Chieh-Min Cheng, Joseph L. Leonardo, Yuhua Tong, Timothy L. Lincoln, Samir Kumar, Christine Louise DeMay
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Publication number: 20090202931Abstract: The present disclosure provides polymer-ionic complexes useful as charge control agents. Such charge control agents may be utilized with toner particles to impart excellent triboelectric charging characteristics to the toner.Type: ApplicationFiled: February 8, 2008Publication date: August 13, 2009Inventors: Timothy L. Lincoln, Timothy J. Key, Robert D. Bayley, Yuhua Tong
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Patent number: 7553596Abstract: Embodiments include a toner with a distilled wax having a crystallinity of from about 55 to about 100 percent, wherein the degree of crystallinity is calculated using the following formulas: [Heat of enthalpy (Hm) J/g/294 J/g]×100=degree of crystallinity (Xc); [Heat of recrystallization (Hrc) J/g/294 J/g]×100=degree of crystallinity (Xc); and Sc/(Sc+Sa)]×100%, wherein Sc is a diffraction peak area of a crystalline component of the wax and the Sa is a diffraction peak area of an amorphous component of the wax; and wherein the Mp, Mn and Mw of the wax are all within the range of from about 500 to about 800, and wherein the wax has a polydispersity of from about 1 to about 1.05.Type: GrantFiled: November 14, 2005Date of Patent: June 30, 2009Assignee: 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
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Publication number: 20090123862Abstract: 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: ApplicationFiled: November 14, 2007Publication date: May 14, 2009Inventors: Mark E. Mang, Timothy L. Lincoln, Yuhua Tong, Kevin F. Marcell
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Publication number: 20090123860Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics.Type: ApplicationFiled: November 14, 2007Publication date: May 14, 2009Inventors: Timothy L. Lincoln, Yuhua Tong, Robert D. Bayley
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Publication number: 20080299478Abstract: 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: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Inventors: 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: 20080044755Abstract: Toner compositions, in embodiments, having excellent charging characteristics and excellent dispensing performance are provided.Type: ApplicationFiled: August 15, 2006Publication date: February 21, 2008Inventors: Vincenzo G. Marcello, Dennis A. Mattison, Steven A. VanScott, Kevin F. Marcell, Timothy L. Lincoln, Angela Schnuerch
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Patent number: 6598466Abstract: A method including: sonicating a liquid suspension of first particles; and analyzing the liquid phase for second particles. An apparatus including: a sonicator adapted to sonicate a liquid suspension of first particles; and a first analyzer adapted to analyze the sonicated liquid phase for second particles. The method and apparatus can be used to analyze the adhesion force relationships between the main or host first particles and guest or surface additive second particles.Type: GrantFiled: October 5, 2000Date of Patent: July 29, 2003Assignee: Xerox CorporationInventors: Allen F. Deluca, Timothy L. Lincoln, Hon H. Le, Christine L. Demay, Eric Murray, David A. Allen, Leela Ganguly
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Patent number: 6508104Abstract: A method including: sonicating a liquid suspension of first particles; and analyzing the liquid phase for second particles. An apparatus including: a sonicator adapted to sonicate a liquid suspension of first particles; and a first analyzer adapted to analyze the sonicated liquid phase for second particles. The method and apparatus can be used to analyze the adhesion force relationships between the main or host first particles and guest or surface additive second particles.Type: GrantFiled: October 5, 2000Date of Patent: January 21, 2003Assignee: Xerox CorporationInventors: Allen F. Deluca, Timothy L. Lincoln, Hon H. Le, Christine L. Demay, Eric Murray, David A. Allen, Leela Ganguly
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Patent number: 6291121Abstract: Detection of the presence and amount of an external surface additive such as silica upon the surface of a toner is accomplished by treating the external surface additive with a fluorescent material and exposing the toner to ultraviolet light. This permits accurate quality control over the amount of the external surface additive required for the toner. The toner thus includes a binder resin and a colorant, and at least one external surface additive upon the surface of the toner, wherein the at least one external surface additive contains a fluorescent material. The fluorescent material may be a fluorescein dye.Type: GrantFiled: September 22, 2000Date of Patent: September 18, 2001Assignee: Xerox CorporationInventors: William H. Hollenbaugh, Jr., Timothy L. Lincoln, Roger N. Ciccarelli, Thomas R. Pickering, Dwight J. Tshudy, Robin L. Sheppard, Amy L. Stamp