Patents by Inventor Kevin J. Henderson

Kevin J. Henderson 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).

  • AMPHOTERIC POLYMER COMPOSITION
    Publication number: 20140194566
    Abstract: The present invention relates to a composition comprising an amphoteric polymer having pendant acid groups, or salts thereof, and pendant mono- or dialkylamino ethylene oxide groups or alkylammonium ethylene oxide groups characterized by either of the following formulas: where R1-R3 and X? are as defined herein. The composition of the present invention improves hiding efficiency for coating compositions formulated using associative rheology modifiers, binders, and titanium dioxide.
    Type: Application
    Filed: May 29, 2012
    Publication date: July 10, 2014
    Inventors: Kathleeen A. Auld, Ward T. Brown, Kevin J. Henderson, Anurima Singh, Antony K. Van Dyk, Lidaris San Miguel Rivera
  • SULFONIC ACID MONOMER BASED COMPOSITIONS
    Publication number: 20140039117
    Abstract: The present invention relates to a composition comprising a water-soluble dispersant comprising structural units of a sulfonic acid monomer or a salt thereof and a co-monomer. The dispersant of the present invention addresses a need in the art by providing a way to improve the hiding efficiency of coatings compositions.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 6, 2014
    Inventors: Kevin J. Henderson, Thomas H. Kalantar, Lidaris San Miguel Rivera, Anurima Singh, Antony K. Van Dyk
  • SULFONIC ACID MONOMER BASED COMPOSITIONS
    Publication number: 20140039115
    Abstract: The present invention relates to a composition which comprises a stable aqueous dispersion of discrete polymer particles and a water-soluble dispersant adsorbed onto the surfaces of pigment particles, wherein the polymer particles comprise structural units of a sulfonic acid monomer or a salt thereof. The present invention addresses a need in the art by providing a way to improve the hiding efficiency of compositions containing pigment such as TiO2 and associative rheology modifiers.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 6, 2014
    Inventors: Kevin J. Henderson, Thomas H. Kalantar, Lidaris San Miguel Rivera, Anurima Singh, Antony K. Van Dyk