Patents by Inventor Wafa F. Bashir
Wafa F. Bashir 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: 10358557Abstract: The present disclosure provides polymeric composition for use with toner particles. The polymeric composition of the present disclosure includes a silicone-polyether copolymer and a polymeric additive, wherein the silicone-polyether copolymer comprising a polysiloxane unit and a polyether unit, and the polymeric additive comprising a copolymer possessing at least one monomer having a high carbon to oxygen ratio, a monomer having more than one vinyl group, and at least one amine-functional monomer. The present disclosure also provides method of making thereof.Type: GrantFiled: March 7, 2018Date of Patent: July 23, 2019Assignee: XEROX CORPORATIONInventors: Richard P. N. Veregin, Nan-Xing Hu, Hajir Mokhtari, Majid Kamel, Wafa F. Bashir, Cuong Vong
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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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Patent number: 9285699Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.Type: GrantFiled: May 1, 2014Date of Patent: March 15, 2016Assignee: XEROX CORPORATIONInventors: Bernard A. Kelly, Thomas C. Dombroski, Brian S. Giannetto, Brian E. Moore, Lloyd D. Spencer, Richard P. N. Veregin, Karen A. Moffat, Thomas E. Enright, Valerie M. Farrugia, Michael S. Hawkins, Wafa F. Bashir
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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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Publication number: 20150316866Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Applicant: XEROX CORPORATIONInventors: Bernard A. Kelly, Thomas C. Dombroski, Brian S. Giannetto, Brian E. Moore, Lloyd D. Spencer, Richard P.N. Veregin, Karen A. Moffat, Thomas E. Enright, Valerie M. Farrugia, Michael S. Hawkins, Wafa F. Bashir
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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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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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Patent number: 7998649Abstract: Pigment particles with at least one metal oxide surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer, wherein the pigment particle is a pearlescent or metallic pigment.Type: GrantFiled: March 3, 2008Date of Patent: August 16, 2011Assignee: Xerox CorporationInventors: Karen A. Moffat, Valerie M. Farrugia, Ke Zhou, Richard P. N. Veregin, Cuong Vong, Eric M. Strohm, Wafa F. Bashir
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Patent number: 7645552Abstract: Toner compositions include a non cross linked resin; a cross linked resin or gel; a wax; and a colorant. Processes for preparing a toner include mixing a non-cross linked resin and a cross-linked resin or gel in the presence of a wax, a colorant, and a coagulant to provide toner size aggregates; adding additional non-cross linked latex to the formed aggregates thereby providing a shell over the formed aggregates; heating the shell covered aggregates to form toner; and, optionally, isolating the toner.Type: GrantFiled: December 3, 2004Date of Patent: January 12, 2010Assignee: Xerox CorporationInventors: Raj D. Patel, Daryl Vanbesien, Enno E. Agur, Edward G. Zwartz, Maria N. V. McDougall, Emily L. Moore, Patricia A. Burns, Kimberly D. Nosella, Ke Zhou, Vladislav Skorokhod, Wafa F. Bashir, Shigang (Steven) Qiu
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Patent number: 7645551Abstract: Disclosed herein are toner particles generated by emulsion/aggregation processes. The processes are conducted under conditions that shorten the time for coalescence and post-formation washing, thereby increasing efficiency of the processes as compared to conventional processes.Type: GrantFiled: March 6, 2007Date of Patent: January 12, 2010Assignee: Xerox CorporationInventors: Amgad W. Sifain, Emily L. Moore, Anthony Uttaro, Jr., Peter V. Nguyen, Jon T. Owens, Ryan Accetta, Karen A. Moffat, Vladislav Skorokhod, Cuong Vong, Wafa F. Bashir, Richard P. N. Veregin, Shigang S. Qiu
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Publication number: 20090220880Abstract: Pigment particles with at least one metal oxide surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer, wherein the pigment particle is a pearlescent or metallic pigment.Type: ApplicationFiled: March 3, 2008Publication date: September 3, 2009Applicant: XEROX CORPORATIONInventors: Karen A. MOFFAT, Valerie M. FARRUGIA, Ke ZHOU, Richard P.N. VEREGIN, Cuong VONG, Eric M. STROHM, Wafa F. BASHIR
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Publication number: 20080220359Abstract: Disclosed herein are toner particles generated by emulsion/aggregation processes. The processes are conducted under conditions that shorten the time for coalescence and post-formation washing, thereby increasing efficiency of the processes as compared to conventional processes.Type: ApplicationFiled: March 6, 2007Publication date: September 11, 2008Applicant: XEROX CORPORATIONInventors: Amgad W. SIFAIN, Emily L. MOORE, Anthony UTTARO, Peter V. NGUYEN, Jon T. OWENS, Ryan ACCETTA, Karen A. MOFFAT, Vladislav SKOROKHOD, Cuong VONG, Wafa F. BASHIR, Richard P. N. VEREGIN, Shigang S. QIU
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Publication number: 20070254230Abstract: A process for toner preparation includes forming toner particles by mixing an emuslion comprising at least binder resin and a colorant, aggregating the toner particles, and blending external additives with the toner particles in a blender to form a toner, wherein the blender has a blend intensity of from about 90.5 to about 100.5 W/lb, a specific blend energy of from about 20.3 to about 35.3 W-h/lb and a blender loading density of from about 0.25 to about 0.55 lb/L.Type: ApplicationFiled: June 26, 2006Publication date: November 1, 2007Applicant: XEROX CORPORATIONInventors: Juan A. Morales-Tirado, Daniel A. Harrington, William H. Hollenbaugh, Vladislav Skorokhod, Wafa F. Bashir, Jackie B. Parker, Robert E. Grace, James M. Chappell, Karen A. Moffat, Richard P.N. Veregin, Cuong Vong
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Patent number: 7014971Abstract: Carrier comprised of a mixture of a first carrier and a second carrier, and wherein the first carrier is comprised of a steel core and the second carrier is comprised of a magnetite.Type: GrantFiled: March 7, 2003Date of Patent: March 21, 2006Assignee: Xerox CorporationInventors: Vladislav Skorokhod, Wafa F. Bashir, Richard P. N. Veregin, Michael S. Hawkins, Deepak R. Maniar
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Publication number: 20040180281Abstract: Carrier comprised of a mixture of a first carrier and a second carrier, and wherein the first carrier is comprised of a steel core and the second carrier is comprised of a magnetite.Type: ApplicationFiled: March 7, 2003Publication date: September 16, 2004Applicant: Xerox CorporationInventors: Vladislav Skorokhod, Wafa F. Bashir, Richard P. N. Veregin, Michael S. Hawkins, Deepak R. Maniar