Patents Assigned to Kemira Chemicals, Inc.
  • Latex paper sizing composition
    Publication number: 20040065425
    Abstract: Methods of sizing paper using a latex as a surface sizing agent are described, in which the latex is defined by acid number or particle size. Further described are methods of improving toner adhesion of papers that are surface sized with alkenylsuccinic anhydrides by employing latexes that have a glass transition temperature of from about 25 to about 65. Still further described are low shear methods of dispersing alkenylsuccinic anhydrides in sizing compositions using latexes as dispersing aids.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 8, 2004
    Applicant: Kemira Chemicals, Inc.
    Inventors: Vaughn L. Irwin, Terrence Edward Cotter, Delos E. Boardman
  • Frictionizing composition
    Patent number: 6517624
    Abstract: There is disclosed a frictionizing composition for imparting long-term anti-slip properties to the surface of a paper product comprising an aqueous sol of colloidal silica, glycerin, and at least one agent selected from the group consisting of N-methyl pyrrolidone, N,N-dimethyl acetoacetamide, urea, sorbitol, fructose and dextrose. The composition remains fluid, even after prolonged exposure to drying conditions, and thus is readily dispersible in water for easy cleanup of residue from apparatus and the work environment.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: February 11, 2003
    Assignee: Kemira Chemicals, Inc.
    Inventor: Mark L. Jarand