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).

  • Patent number: 10358557
    Abstract: 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: Grant
    Filed: March 7, 2018
    Date of Patent: July 23, 2019
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Nan-Xing Hu, Hajir Mokhtari, Majid Kamel, Wafa F. Bashir, Cuong Vong
  • Patent number: 9663615
    Abstract: 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: Grant
    Filed: February 5, 2016
    Date of Patent: May 30, 2017
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Shigang S. Qiu, Yulin Wang, Kevin F. Marcell, Wafa F. Bashir, Richard P N Veregin, John Lawrence Pawlak, Christopher M. Wolfe
  • Patent number: 9285699
    Abstract: 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: Grant
    Filed: May 1, 2014
    Date of Patent: March 15, 2016
    Assignee: XEROX CORPORATION
    Inventors: 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
  • Patent number: 9229344
    Abstract: 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: Grant
    Filed: April 17, 2014
    Date of Patent: January 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: 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
  • Patent number: 9223239
    Abstract: 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: Grant
    Filed: April 17, 2014
    Date of Patent: December 29, 2015
    Assignee: XEROX CORPORATION
    Inventors: 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
  • Publication number: 20150316866
    Abstract: 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: Application
    Filed: May 1, 2014
    Publication date: November 5, 2015
    Applicant: XEROX CORPORATION
    Inventors: 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
  • Publication number: 20150301467
    Abstract: 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: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: XEROX CORPORATION
    Inventors: 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
  • Publication number: 20150301466
    Abstract: 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: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: XEROX CORPORATION
    Inventors: 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
  • Patent number: 7998649
    Abstract: 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: Grant
    Filed: March 3, 2008
    Date of Patent: August 16, 2011
    Assignee: Xerox Corporation
    Inventors: Karen A. Moffat, Valerie M. Farrugia, Ke Zhou, Richard P. N. Veregin, Cuong Vong, Eric M. Strohm, Wafa F. Bashir
  • Patent number: 7645552
    Abstract: 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: Grant
    Filed: December 3, 2004
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: 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
  • Patent number: 7645551
    Abstract: 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: Grant
    Filed: March 6, 2007
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: 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
  • Publication number: 20090220880
    Abstract: 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: Application
    Filed: March 3, 2008
    Publication date: September 3, 2009
    Applicant: XEROX CORPORATION
    Inventors: Karen A. MOFFAT, Valerie M. FARRUGIA, Ke ZHOU, Richard P.N. VEREGIN, Cuong VONG, Eric M. STROHM, Wafa F. BASHIR
  • Publication number: 20080220359
    Abstract: 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: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Applicant: XEROX CORPORATION
    Inventors: 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
  • Publication number: 20070254230
    Abstract: 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: Application
    Filed: June 26, 2006
    Publication date: November 1, 2007
    Applicant: XEROX CORPORATION
    Inventors: 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
  • Patent number: 7014971
    Abstract: 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: Grant
    Filed: March 7, 2003
    Date of Patent: March 21, 2006
    Assignee: Xerox Corporation
    Inventors: Vladislav Skorokhod, Wafa F. Bashir, Richard P. N. Veregin, Michael S. Hawkins, Deepak R. Maniar
  • Publication number: 20040180281
    Abstract: 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: Application
    Filed: March 7, 2003
    Publication date: September 16, 2004
    Applicant: Xerox Corporation
    Inventors: Vladislav Skorokhod, Wafa F. Bashir, Richard P. N. Veregin, Michael S. Hawkins, Deepak R. Maniar