Patents by Inventor John Schoell

John Schoell 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).

  • Protective lubricant emulsion compositons for printing
    Patent number: 5879748
    Abstract: A protective non-silicone oil aqueous lubricant emulsion for web off-set lithographic printing comprises from about 30 wt % to about 70 wt % hydrocarbon oil, from about 1 wt % to about 8 wt % of a surfactant having an HLB factor less than about 6, from about 2 wt % to about 9 wt % of a surfactant having an HLB factor greater than about 11, and from about 25 wt % to 60 wt % water, the emulsion having an average particle diameter of from about 500 nm to about 1100 nm. The emulsion enhances control of the dimensional stability of inked sheets and of the coefficient of friction of the heatset web.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: March 9, 1999
    Assignee: Varn Products Company Inc.
    Inventors: Ronald S. Conti, John Schoell, Donatas Ramanauskas