Patents by Inventor Sonia Rondon

Sonia Rondon 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).

  • PRESS CLEANING WITH LOW-VOC SOLVENT COMPOSITIONS
    Publication number: 20120097185
    Abstract: Low-VOC cleaning compositions effective in removing stubborn UV inks from printing-press components include at least one non-ionic surfactant selected from the group consisting of a sorbitan ester, an ethoxylated sorbitan ester, an ethoxylated castor oil, polyethylene glycol ester and an alcohol ethoxylate; and at least one carrier comprising or consisting essentially of at least one of (i) an organic solvent miscible therewith or (ii) D-limonene. The cleaning composition has a VOC limit less than 100 g/L.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 26, 2012
    Applicant: PRESSTEK, INC.
    Inventors: SONIA RONDON, KEVIN RAY
  • ABLATION-TYPE LITHOGRAPHIC IMAGING WITH SILICONE ACRYLATE LAYERS
    Publication number: 20110287266
    Abstract: In ablation-type printing plates involving silicone acrylate top layers, curing at high oxygen levels not only substantially reduces or eliminates toning, but does not adversely affect plate durability or printing performance.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 24, 2011
    Applicant: Presstek, Inc.
    Inventors: Sonia Rondon, Kevin Ray
  • ABLATION-TYPE LITHOGRAPHIC IMAGING WITH ENHANCED DEBRIS REMOVAL
    Publication number: 20110249250
    Abstract: Sequentially subjecting an imaged ablation-type printing member having a silicone topmost layer to, first, a cleaning liquid that is not a solvent for silicone, followed by subjecting to a second cleaning liquid that is a silicone solvent, conditions the printing member for subsequent printing with high-solids inks.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Applicant: Presstek, Inc.
    Inventors: Sonia Rondon, Kevin Ray
  • LITHOGRAPHIC IMAGING AND PRINTING WITHOUT DEFECTS OF ELECTROSTATIC ORIGIN
    Publication number: 20110188023
    Abstract: Embodiments of the present invention involve three-layer printing members having a central layer that is non-conductive yet abalatable at commercially realistic fluence levels. In various embodiments, the central layer is polymeric with a dispersion of nonconductive carbon black particles therein at a loading level sufficient to provide at least partial layer ablatability and water compatibility of the resulting ablation debris.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 4, 2011
    Applicant: Presstek, Inc.
    Inventors: Sonia Rondon, Kevin Ray
  • LITHOGRAPHIC IMAGING WITH PRINTING MEMBERS HAVING METAL IMAGING BILAYERS
    Publication number: 20100239976
    Abstract: Printing members include very thin metal imaging bilayers that combine to trap and utilize imaging radiation and, due to their minimal thicknesses, ablate easily. The bilayer may include a first (bottommost) metal layer having a high extinction coefficient in the imaging wavelength range (e.g., 600-1200 nm) and, thereover, a second metal layer having a high transmittance and low emissivity for imaging radiation.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 23, 2010
    Applicant: Presstek, Inc.
    Inventor: Sonia Rondon
  • LITHOGRAPHIC IMAGING WITH PRINTING MEMBERS HAVING HYDROPHILIC, SURFACTANT-CONTAINING TOP LAYERS
    Publication number: 20090123871
    Abstract: Printing members that include a topmost layer comprising a polymer and a silicone surfactant are durable and enable use of low imaging-power densities. The protective layer may contain an inorganic crosslinker.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 14, 2009
    Applicant: PRESSTEK, INC.
    Inventors: Sonia Rondon, Susan Lanphear
  • Lithographic printing with printing members including an oleophilic metal and plasma polymer layers
    Patent number: 7351517
    Abstract: Printing members that include a plasma polymer layer exhibit enhanced tolerance for high imaging-power densities. The plasma polymer layer may contain or be adjacent to an oleophilic metal such as copper.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: April 1, 2008
    Assignee: Presstek, Inc.
    Inventor: Sonia Rondon
  • Lithographic printing with printing members including an oleophilic metal and plasma polymer layers
    Publication number: 20060234162
    Abstract: Printing members that include a plasma polymer layer exhibit enhanced tolerance for high imaging-power densities. The plasma polymer layer may contain or be adjacent to an oleophilic metal such as copper.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 19, 2006
    Inventor: Sonia Rondon
  • Lithographic printing with printing members having plasma polymer layers
    Patent number: 7078152
    Abstract: A plasma polymer layer facilitates selective removal of the imaging layer of a lithographic printing member, which allows for imaging with low-power lasers. The printing member can be used on press immediately after being imaged without the need for a post-imaging processing step.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: July 18, 2006
    Assignee: Presstek, Inc.
    Inventors: Sonia Rondon, Susan J. Lanphear
  • Lithographic printing with printing members having plasma polymer layers
    Publication number: 20050250048
    Abstract: A plasma polymer layer facilitates selective removal of the imaging layer of a lithographic printing member, which allows for imaging with low-power lasers. The printing member can be used on press immediately after being imaged without the need for a post-imaging processing step.
    Type: Application
    Filed: May 5, 2004
    Publication date: November 10, 2005
    Inventors: Sonia Rondon, Susan Lanphear