Patents by Inventor Kirsi Terava

Kirsi Terava 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).

  • HIGH CATIONIC STARCH AS A PROMOTER IN AKD SIZING EMULSIONS
    Publication number: 20230212820
    Abstract: A method for preparation of a starch-promoted alkyl ketene dimer (AKD) sizing emulsion is provided. The inventive method comprises adding a sizing promoter comprising high-charge cationic starch and polyaluminum chloride (PAC) to a stabilized AKD emulsion and further wherein addition of said sizing promoter comprising high-charge cationic starch and PAC is effected at ambient temperature, after emulsification, stabilization, and homogenization of said stabilized AKD emulsion; and prior to addition of the starch-promoted AKD sizing emulsion to papermaking furnish, pulp, or fiber stock.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Jennifer Riser, Kirsi Terava, Timo Valkealaakso, Jaakko Hiltunen