Patents by Inventor Verson E. Pandian

Verson 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: 5472485
    Abstract: New sizing compositions containing: (a) a compound selected from the group consisting of alkenyl succinic anhydrides, alkyl ketene dimers and mixtures thereof and (b) a metal salt selected from the group of metals consisting of zirconium, hafnium, titanium and mixtures thereof are described. The use of the above sizing compositions during paper making provides paper products having superior liquid storage properties, especially liquid foods such as milk, juices, etc.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: December 5, 1995
    Assignee: Hopton Technologies, Inc.
    Inventors: Verson E. Pandian, Dan V. Calcar, Bernard W. Wolff
  • Use of zirconium salts to improve the surface sizing efficiency in paper making
    Patent number: 5460645
    Abstract: An aqueous surface sizing composition for sizing paper or paperboard having as essential components 50 to 70 pads of a water soluble or water dispersible hydroxylated polymer, an amount of a carboxylated polymer that is present relative to hydroxylated polymer in a ratio of 0.5:99.5 to 4:96 and not exceeding 7 pads carboxylated polymer, 0.3 to 3.0 pads of an alkali salt of a Group IV metal (e.g., zirconium, hafnium, and titanium), and sufficient water to obtain 1.5 to 2.0 percent total solids. The sizing compositions may further include polymeric additives, aqueous alkali, a pigment and a defoamer.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: October 24, 1995
    Inventors: Verson E. Pandian, Dan van Calcar, Bernard W. Wolff