Patents by Inventor David J.W. Lawton

David J.W. Lawton 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).

  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180173128
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: Karen A. Moffat, David J.W. Lawton, Melanie L. Davis, Juan A. Morales-Tirado, Varun Sambhy
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180173127
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 70 and, in further embodiments, at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: KAREN A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY, RICHARD P.N. VEREGIN
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180157187
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: KAREN A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY, RICHARD P.N. VEREGIN
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180039194
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 8, 2018
    Inventors: Karen A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY
  • Continuous Coalescence Process for Sustainable Toner
    Publication number: 20170003609
    Abstract: A continuous coalescence process for preparing a sustainable toner is described which features toner with lowered melt properties and higher toner surface carbon to oxygen (C/O) ratios than previously described sustainable resins coalesced in a batch reactor.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 5, 2017
    Inventors: David J.W. Lawton, Ke Zhou, Kimberly D. Nosella, Melanie L. Davis, Guerino G. Sacripante, Richard P.N. Veregin
  • POROUS RESIN PARTICLES
    Publication number: 20160274478
    Abstract: Porous resin particles of from about 3 ?m to about 25 ?m size made in an emulsion aggregation process where coalescence occurs under continuous conditions which enable, for example, more rapid coalescence, are described.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: David J.W. Lawton, Chieh-Min Cheng, David R. Kurceba, Eric J. Young
  • EMULSION AGGREGATION TONERS
    Publication number: 20150160574
    Abstract: Disclosed is toner particles having controlled and tailorable fusing characteristics. In particular, there is provided toner particles comprising styrene acrylate which have specific shape characteristics that allow for tailorable fusing characteristics without generating a detrimental effect on the blocking characteristics of such toners.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 11, 2015
    Applicant: XEROX CORPORATION
    Inventors: Juan A. Morales-Tirado, David J.W. Lawton, Edward G. Zwartz, Vincenzo G. Marcello, Yolanda E. Maldonado, David R. Kurceba
  • HYBRID EMULSION AGGREGATE TONER
    Publication number: 20150118610
    Abstract: Toners and processes useful in providing toners suitable for electrophotographic apparatuses, including apparatuses such as digital, image-on-image, and similar apparatuses. In particular, emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies and which comprise a base resin composed of both styrene-acrylate and polyester resins. These toner compositions further include polyaluminum chloride (PAC) instead of the more commonly used aluminum sulfate as the flocculant or aggregating agent.
    Type: Application
    Filed: January 22, 2014
    Publication date: April 30, 2015
    Applicant: XEROX CORPORATION
    Inventors: Kimberly D. Nosella, Guerino G. Sacripante, Richard P.N. Veregin, Edward G. Zwartz, David J.W. Lawton
  • HYBRID EMULSION AGGREGATE TONER
    Publication number: 20150118613
    Abstract: Emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies. Namely, there is provided an emulsion aggregation toner that comprises a base resin composed of both styrene-acrylate and polyester resins. Such hybrid emulsion aggregation toner compositions are lower in cost but still maintain desirable developer properties like low minimum fusing temperature (MFT) and lower dielectric loss.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: XEROX CORPORATION
    Inventors: KIMBERLY D. NOSELLA, Guerino G. Sacripante, Edward G. Zwartz, Richard P.N. Veregin, Michael S. Hawkins, David J.W. Lawton
  • TONER PROCESSES FOR HYPER-PIGMENTED TONERS
    Publication number: 20150004542
    Abstract: The present embodiments relate to processes of preparing toner particles. More specifically, the processes produce toner particles having high pigment loadings and desired circularity. The processes include diluting the aggregated particulate mixture prior to coalescence.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Jordan H. Wosnick, Melanie L. Davis, David J.W. Lawton