Patents by Inventor Santokh S. Badesha

Santokh S. Badesha 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: 9481164
    Abstract: Functional amine release agents displaying improved wetting as compared to standard silicone oils comprise a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl, in which the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g and the release agents have a viscosity of 20 cSt and 10 cSt. In an in-line tandem print system, the 20 cSt release agent is used in the upstream print engine while the 10 cSt release agent is used in the downstream print engine.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: November 1, 2016
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Publication number: 20160257865
    Abstract: An adhesive compound can include an uncured epoxy film having a curing temperature between about 80° C. and about 300° C. The uncured epoxy film can include a cresol novolac epoxy resin and a bisphenol A epoxy resin. The uncured epoxy film can have a thickness between about 0.1 mil and about 5 mil.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Inventors: Yanjia Zuo, Mandakini Kanungo, Hong Zhao, John R. Andrews, Pratima Gattu Naga Rao, Mark A. Cellura, Santokh S. Badesha
  • Patent number: 9427969
    Abstract: The present teachings describe a printhead assembly. The printhead assembly includes a first plate and a second plate stacked together. The printhead assembly includes a first adhesive between the first plate and the second plate for bonding the plates together. The printhead assembly includes a second adhesive surrounding an outer edge of the first adhesive wherein the second adhesive has an oxygen migration rate lower than an oxygen migration rate of the first adhesive. An oxygen sensitive component is contained within the outer edge of the first adhesive.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: August 30, 2016
    Assignee: Xerox Corporation
    Inventors: Pratima Gattu Naga Rao, Sean Campbell Hunter, Christopher Jon Laharty, Jonathan Robert Brick, John Milton Brookfield, Tony Russell Rogers, Michael Joel Edwards, Hong Zhao, Mandakini Kanungo, Yanjia Zuo, Daniel R. Hahn, Santokh S. Badesha, John R. Andrews
  • Publication number: 20160176185
    Abstract: A multilayer imaging blanket comprises a seamless belt. A silicone layer is disposed on the belt. The silicone layer comprises silicone rubber and a metal oxide filler. A fluoroelastomer surface layer is disposed on the silicone layer. Printing apparatuses employing the multilayer imaging blanket are also disclosed.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Mandakini Kanungo, Santokh S. Badesha, David J. Gervasi, Phillip J. Wantuck, Anton Grigoryev, Kevin H. Taft, Xing Xin Liu
  • Patent number: 9353290
    Abstract: An embodiment of the present disclosure is directed to an indirect printing apparatus. The indirect printing apparatus comprises an intermediate transfer member comprising a substrate and a surface layer disposed over the substrate. The surface layer comprises a fluoroelastomer-aminosilane grafted polymer and infrared absorptive filler materials. The indirect printing apparatus also comprises a coating mechanism for forming a sacrificial coating onto the intermediate transfer member and a drying station for drying the sacrificial coating. At least one ink jet nozzle is positioned proximate the intermediate transfer member and configured for jetting ink droplets onto the sacrificial coating formed on the intermediate transfer member. An ink processing station comprises a radiation source for at least partially drying the ink on the sacrificial coating formed on the intermediate transfer member.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Anthony S. Condello, Chu-Heng Liu, David J. Gervasi, Jeffrey Folkins, Santokh S. Badesha, Mandakini Kanungo, Palghat Ramesh, Paul McConville, Phillip Wantuck, Lifeng Chen
  • Publication number: 20160130469
    Abstract: Exemplary embodiments provide anti-wetting, low adhesion coatings for use with aqueous ink jet printheads. Exemplary embodiments directed to aqueous ink jet printheads with the anti-wetting, low adhesion coating on the front face thereof and methods for reducing drooling, wetting or adhesion on a front face of an ink jet printhead configured for ejecting aqueous ink are also described.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 12, 2016
    Inventors: Varun Sambhy, Kyle B. Tallman, Santokh S. Badesha, Michael S. Roetker, Jonathan H. Herko, Scott J. Griffin
  • Patent number: 9329512
    Abstract: Bio-based toner compositions that exhibit excellent performance and provide high print quality. More specifically, the present bio-based toner compositions comprise greater than 20% bio-resins but avoid the moisture sensitivity issues that bio-resins are prone to by also including one or more oil additives.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: May 3, 2016
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Juan A. Morales-Tirado, Santokh S. Badesha, Susan J. LaFica
  • Patent number: 9327519
    Abstract: An indirect printing process comprises providing an inkjet printing apparatus comprising an intermediate transfer member. A wet sacrificial coating composition is deposited onto the intermediate transfer member. The wet sacrificial coating composition is made from ingredients comprising: a waxy starch; at least one hygroscopic material; at least one surfactant; and a liquid carrier. The wet sacrificial coating composition is dried to form a dry sacrificial coating. Droplets of ink are ejected in an imagewise pattern onto the dry sacrificial coating. The ink is at least partially dried to form a substantially dry ink pattern. Both the substantially dry ink pattern and the sacrificial coating are transferred from the intermediate transfer member to a final substrate. At least one cross-linking agent is applied to cross-link the sacrificial coating.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 3, 2016
    Assignee: XEROX CORPORATION
    Inventors: James R. Larson, Jeffrey J. Folkins, Santokh S. Badesha, Mandakini Kanungo
  • Patent number: 9303185
    Abstract: An indirect printing apparatus is disclosed. The printing apparatus comprises an intermediate transfer member. A polyurethane based sacrificial coating is on the intermediate transfer member. The printing apparatus also comprises a coating mechanism for forming the sacrificial coating onto the intermediate transfer member and a drying station for drying the sacrificial coating. At least one ink jet nozzle is positioned proximate the intermediate transfer member and configured for jetting ink droplets onto the sacrificial coating formed on the intermediate transfer member. An ink processing station is configured to at least partially dry the ink on the sacrificial coating formed on the intermediate transfer member. The printing apparatus comprises a substrate transfer mechanism for moving a substrate into contact with the intermediate transfer member.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Srinivas Mettu, Santokh S. Badesha, Chu-Heng Liu, Anthony S. Condello
  • Patent number: 9296219
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 29, 2016
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Patent number: 9283795
    Abstract: An imaging member surface layer including between 55% and 95% fluorosilicone, between 5% and 20% infrared-absorbing material by weight, between 1% and 5% silica, between 0.15% and 0.35% catalyst and between 10% and 18% crosslinker by weight, based on the total weight of the surface layer. The surface layer has a thickness between 10 microns and 1 millimeter and a surface tension energy of 22 dynes/cm or less and a polar components of 5 dynes or less.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 15, 2016
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Anton Grigoryev, Phillip J. Wantuck, David J. Gervasi, Santokh S. Badesha
  • Publication number: 20160067956
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 10, 2016
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Publication number: 20160011543
    Abstract: Provided is a method of making fuser members. The method can include applying a rubber conformance layer over a substrate, applying a suspension composition over the conformance layer, the suspension composition comprising a plurality of fluoroplastic particles over the conformance layer, and exposing the plurality of fluoroplastic particles to pulsed light to form a continuous topcoat film.
    Type: Application
    Filed: April 15, 2015
    Publication date: January 14, 2016
    Inventors: Yu Qi, Mandakini Kanungo, Phillip J. Wantuck, David J. Gervasi, Santokh S. Badesha
  • Patent number: 9233533
    Abstract: An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 12, 2016
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Matthew M. Kelly, Varun Sambhy, David J. Gervasi, Santokh S. Badesha, Chakkaravarthy Chidambareswarapattar, Michael S. Roetker
  • Patent number: 9221245
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: December 29, 2015
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, James M. Chappell, Joanne L. Lee, Rachael L. McGrath, Santokh S. Badesha
  • Patent number: 9216588
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 22, 2015
    Assignee: Xeroc Corporation
    Inventors: Jason M. LeFevre, Paul J. McConville, Santokh S. Badesha, James M. Chappell, David A. VanKouwenberg, Anthony S. Condello, Daniel J. McVeigh
  • Patent number: 9206269
    Abstract: An oleophobic grafted polymer includes a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer. A process for making an oleophobic grafted polymer includes crosslinking a fluoroelastomer with an aminofunctionalized silane and grafting an alkoxysilane-terminated perfluorinated polyether to the crosslinked fluoroelastomer.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: December 8, 2015
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Matthew M. Kelly, Varun Sambhy, David J. Gervasi, Santokh S. Badesha, Chakkaravarthy Chidambareswarapattar, Michael S. Roetker
  • Publication number: 20150344750
    Abstract: An adhesive compound can include an uncured epoxy film having a curing temperature between about 80° C. and about 300° C. The uncured epoxy film can include a cresol novolac resin and a bisphenol A epoxy resin. The uncured epoxy film can have a thickness between about 0.1 mil and about 5 mil.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 3, 2015
    Applicant: XEROX CORPORATION
    Inventors: YANJIA ZUO, MANDAKINI KANUNGO, HONG ZHAO, JOHN R. ANDREWS, PRATIMA GATTU NAGA RAO, MARK A. CELLURA, SANTOKH S. BADESHA
  • Publication number: 20150336394
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 26, 2015
    Inventors: Jason M. LeFevre, Paul J. McConville, Santokh S. Badesha, James M. Chappell, David A. VanKouwenberg, Anthony S. Condello, Daniel J. McVeigh
  • Patent number: 9193209
    Abstract: A transfix blanket for a printer may include a substrate layer. A conformance layer may be disposed at least partially on the substrate layer. An adhesive layer may be disposed at least partially on the conformance layer. At least one of the conformance layer and the adhesive layer may include a plurality of infrared reflective pigments. A topcoat layer may be disposed at least partially on the adhesive layer. The topcoat may include an infrared absorptive material.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 24, 2015
    Assignee: XEROX CORPORATION
    Inventors: Brynn Dooley, Marcel Philippe Breton, Gordon Sisler, Santokh S. Badesha, David J. Gervasi, Mandakini Kanungo