Patents by Inventor John Krasniewski

John Krasniewski 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).

  • Production and use of polysilicate particulate materials
    Publication number: 20070231249
    Abstract: A method of preparing a particulate material comprising the steps of adding silicic acid solution, optionally doped with aluminum, optionally added to a slurry of pre-existing nanoparticles at a neutral to slightly acidic pH of no more than seven, and at a temperature of about 20° to 30° C. This yields a polysilicate particulate dispersion. Then, the pH of the dispersion is raised to greater than seven, to stabilize/reinforce particles of the particulate dispersion. Optionally, the particles may be dried, and have increased porosity and surface area.
    Type: Application
    Filed: April 4, 2006
    Publication date: October 4, 2007
    Inventors: Francois Batllo, Brian Holland, John Krasniewski, Kim Long, Michael Romba, Sascha Welz, David Workman
  • Lubricants for paper coatings
    Patent number: 6191079
    Abstract: A lubricant additive suitable for combination with an aqueous-based paper or paper board coating mixture wherein the lubricant additive is selected from the group consisting of a polyoxyalkylene mono- and di-ester of phosphoric acid, a polyoxyalkylene mono- and di-ester of a phosphoric acid salt, and a mixture thereof.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: February 20, 2001
    Assignee: GEO Specialty Chemicals, Inc.
    Inventors: Rudolph Klima, John Krasniewski, Jose Maria Rodriguez