Patents by Inventor Daniel W. Asarese
Daniel W. Asarese 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).
-
Publication number: 20220244656Abstract: Toner particles including a core and a shell thereover; wherein the core comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene-acrylate copolymer 2, and styrene-acrylate copolymer 3, and combinations thereof a wax; and an optional colorant; wherein the shell comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene acrylate copolymer 2, styrene acrylate copolymer 3, and combinations thereof.Type: ApplicationFiled: February 4, 2021Publication date: August 4, 2022Inventors: Jordan A. Frank, Daniel W. Asarese, Chieh-Min Cheng, Paul K. Acquaviva, Richard P. N. Veregin, Michael F. Zona
-
Publication number: 20210263435Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large silica surface additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.Type: ApplicationFiled: February 25, 2020Publication date: August 26, 2021Inventors: Richard P. N. Veregin, Michael F. Zona, Jordan A. Frank, Daniel W. Asarese, Paul K. Acquaviva, Chieh-Min Cheng
-
Publication number: 20210263436Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.Type: ApplicationFiled: February 25, 2020Publication date: August 26, 2021Inventors: Jordan A. Frank, Daniel W. Asarese, Paul K. Acquaviva, Chieh-Min Cheng, Michael F. Zona, Richard P. N. Veregin
-
Publication number: 20210263437Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large cross-linked organic polymeric additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.Type: ApplicationFiled: February 25, 2020Publication date: August 26, 2021Inventors: Richard P. N. Veregin, Michael F. Zona, Jordan A. Frank, Daniel W. Asarese, Chieh-Min Cheng, Paul K. Acquaviva
-
Patent number: 11092906Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large silica surface additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.Type: GrantFiled: February 25, 2020Date of Patent: August 17, 2021Assignee: Xerox CorporationInventors: Richard P. N. Veregin, Michael F. Zona, Jordan A. Frank, Daniel W. Asarese, Paul K. Acquaviva, Chieh-Min Cheng
-
Patent number: 11086244Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large cross-linked organic polymeric additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.Type: GrantFiled: February 25, 2020Date of Patent: August 10, 2021Assignee: Xerox CorporationInventors: Richard P. N. Veregin, Michael F. Zona, Jordan A. Frank, Daniel W. Asarese, Chieh-Min Cheng, Paul K. Acquaviva
-
Patent number: 11086243Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.Type: GrantFiled: February 25, 2020Date of Patent: August 10, 2021Assignee: Xerox CorporationInventors: Jordan A. Frank, Daniel W. Asarese, Paul K. Acquaviva, Chieh-Min Cheng, Michael F. Zona, Richard P. N. Veregin
-
Patent number: 10409185Abstract: Methods of forming a toner are provided. In embodiments, such a method comprises forming a toner from a mixture of at least one resin, at least one wax, and optionally, at least one colorant, wherein the at least one wax is of a type and is present at an amount which are selected to provide a predetermined PER10 value for the toner; and measuring a PER10 value for the toner, wherein the measured PER10 value for the toner is equal to or less than the predetermined PER10 value. Toners formed using the methods are also provided.Type: GrantFiled: February 8, 2018Date of Patent: September 10, 2019Assignee: Xerox CorporationInventors: Siddhesh Nitin Pawar, Juan A. Morales-Tirado, Grazyna E. Kmiecik-Lawrynowicz, Daniel W. Asarese, Jordan A. Frank
-
Publication number: 20190243271Abstract: Methods of forming a toner are provided. In embodiments, such a method comprises forming a toner from a mixture of at least one resin, at least one wax, and optionally, at least one colorant, wherein the at least one wax is of a type and is present at an amount which are selected to provide a predetermined PER10 value for the toner; and measuring a PER10 value for the toner, wherein the measured PER10 value for the toner is equal to or less than the predetermined PER10 value. Toners formed using the methods are also provided.Type: ApplicationFiled: February 8, 2018Publication date: August 8, 2019Inventors: Siddhesh Nitin Pawar, Juan A. Morales-Tirado, Grazyna E. Kmiecik-Lawrynowicz, Daniel W. Asarese, Jordan A. Frank
-
Patent number: 9417544Abstract: A low energy consumption monochrome toner includes a surface additive package having a high charging silica compound, an aerating silica compound, a colloidal silica compound, a polymeric spacer, and a crosslinked spacer. The low energy consumption monochrome toner is suitable for high speed printing in SCD systems while decreasing minimum fusing temperature, maintaining excellent hot offset and storage, and exhibiting a matte finish.Type: GrantFiled: February 7, 2014Date of Patent: August 16, 2016Assignee: XEROX CORPORATIONInventors: Grazyna E. Kmiecik-Lawrynowicz, Robert D. Bayley, Maura A. Sweeney, Daniel W. Asarese, Karen L. Lamora
-
Patent number: 9164410Abstract: A toner composition with a novel surface additive package for developing images is provided. The additive package comprises a sol-gel silica, a PDMS silica, an HMDS silica, and an organic spacer such as PMMA, and melamine. The toner composition exhibits improved properties and are useful for high speed printing on Single Component Development systems.Type: GrantFiled: June 28, 2013Date of Patent: October 20, 2015Assignee: XEROX CORPORATIONInventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Samir Kumar
-
Publication number: 20150227072Abstract: A low energy consumption monochrome toner includes a surface additive package having a high charging silica compound, an aerating silica compound, a colloidal silica compound, a polymeric spacer, and a crosslinked spacer. The low energy consumption monochrome toner is suitable for high speed printing in SCD systems while decreasing minimum fusing temperature, maintaining excellent hot offset and storage, and exhibiting a matte finish.Type: ApplicationFiled: February 7, 2014Publication date: August 13, 2015Applicant: XEROX CORPORATIONInventors: GRAZYNA E. KMIECIK-LAWRYNOWICZ, ROBERT D. BAYLEY, MAURA A. SWEENEY, DANIEL W. ASARESE, KAREN L. LAMORA
-
Patent number: 9029057Abstract: Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner.Type: GrantFiled: April 17, 2013Date of Patent: May 12, 2015Assignee: Xerox CorporationInventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Samir Kumar, Daniel W. Asarese
-
Publication number: 20150004536Abstract: A toner composition with a novel surface additive package for developing images is provided. The additive package comprises a sol-gel silica, a PDMS silica, an HMDS silica, and an organic spacer such as PMMA, and melamine. The toner composition exhibits improved properties and are useful for high speed printing on Single Component Development systems.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventors: GRAZYNA E. KMIECIK-LAWRYNOWICZ, MAURA A. SWEENEY, DANIEL W. ASARESE, SAMIR KUMAR
-
Publication number: 20140315127Abstract: Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner.Type: ApplicationFiled: April 17, 2013Publication date: October 23, 2014Applicant: Xerox CorporationInventors: Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Samir Kumar, Daniel W. Asarese
-
Publication number: 20140272701Abstract: A toner composition includes toner particles containing a resin; an optional wax; and an optional colorant, wherein the resin is a three latex system including a latex core, a latex shell, and a latex gel; and a glass transition temperature Tg of the latex core is lower than a glass transition temperature Tg of the latex shell.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: XEROX CORPORATIONInventors: Grazyna E. KMIECIK-LAWRYNOWICZ, Maura A. SWEENEY, Daniel W. ASARESE, Robert D. BAYLEY
-
Publication number: 20140255841Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which charge control agent is added and adhered to the particle surface through washing steps and is maintained through the drying steps. The process of the present embodiments impart desirable charging characteristics to the toner particles.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: XEROX CORPORATIONInventors: Robert D. Bayley, Maura A. Sweeney, Grazyna E. Kmiecik-Lawrynowicz, Daniel W. Asarese
-
Patent number: 8785102Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which charge control agent is added and adhered to the particle surface through washing steps and is maintained through the drying steps. The process of the present embodiments impart desirable charging characteristics to the toner particles.Type: GrantFiled: April 23, 2012Date of Patent: July 22, 2014Assignee: Xerox CorporationInventors: Robert D. Bayley, Maura A. Sweeney, Grazyna E. Kmiecik-Lawrynowicz, Daniel W. Asarese
-
Patent number: 8697323Abstract: A toner composition including toner particles that have a resin, an optional wax, and an optional colorant; and a surface additive at least partially coating toner particle surfaces. The surface additive includes a mixture of a hexamethyldisilazane (HMDS) surface treated silica, a sol-gel silica that is not surface treated, and a polydimethylsiloxane (PDMS) surface treated silica.Type: GrantFiled: April 3, 2012Date of Patent: April 15, 2014Assignee: Xerox CorporationInventors: Grazyna E. Kmiecik-Lawrynowicz, Brian S. Wang, Robert D. Bayley, Maura A. Sweeney, Daniel W. Asarese
-
Patent number: 8691485Abstract: The present disclosure provides toners and methods for their production. In embodiments, the toner may include a core/shell configuration, with a non-crosslinked resin and a crosslinked resin in the core, with a second non-crosslinked resin in the shell, pigment/pigments and a wax possessing both branched and linear carbons.Type: GrantFiled: October 8, 2009Date of Patent: April 8, 2014Assignee: Xerox CorporationInventors: Daniel W. Asarese, Grazyna E. Kmiecik-Lawrynowicz, Samir Kumar, Maura A. Sweeney, Siddhesh N. Pawar, Robert D. Bayley