Patents by Inventor Vernon E. Pandian

Vernon E. Pandian 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).

  • Use of zirconium salts to improve the surface sizing efficiency in paper making
    Patent number: 5362573
    Abstract: This invention relates to an improved process of surface sizing of paper and paperboard. The process consists of:a) Preparing an aqueous surface sizing compound by combining and mixing an aqueous solution of at least one water soluble or dispersible polymer or interpolymer, a solution or dispersion of auxiliary materials, and an aqueous solution of a metal salt, selected from the group of metals consisting of zirconium, hafnium or titanium, to the polymer solution;b) Adjusting the pH of the aqueous sizing compound from about 5 to about 10.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: November 8, 1994
    Inventors: Vernon E. Pandian, Dan van Calcar, Bernard W. Wolff