Patents Examined by Michael Grendzynjk
  • Patent number: 6455134
    Abstract: Improved ink jet paper coatings which impart high optical density images and excellent water resistance by the incorporation of an amine functional, colloid-stabilized emulsion into the coating formulation. The improvement resides in the use of amine functional monomers, such as 2-(dimethylamino)ethyl methacrylate (DMAEMA), which are emulsion copolymerized with other ethylenically unsaturated monomers, such as vinyl acetate, in the presence of a large amount of a colloid stabilizing polymer having a plurality of pendent hydroxyl groups; preferably, poly(vinyl alcohol).
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: September 24, 2002
    Assignee: Air Products Polymers, L.P.
    Inventor: John Joseph Rabasco