Patents by Inventor Perincheery Aravindakshan

Perincheery Aravindakshan 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).

  • Polysaccharide graft-polymers and the use in papermaking thereof
    Patent number: 5583193
    Abstract: A process for preparing a modified polysaccharide graft copolymer complex which comprises the steps of:i. subjecting polysaccharide to graft copolymerization with a vinyl monomer;ii. treating the polysaccharide graft copolymer with:a. polyethylene glycol to provide a polymer-PEG complex; orb. a silicate compound to provide a silica precipitated polymer; andiii. recovering the polymer-PEG complex or silica precipitated polymer.This modified polysaccharide graft copolymer may be used as a surface sizing agent in the preparation of paper.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 10, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Perincheery Aravindakshan, Velayudhan N. G. Kumar