Patents Assigned to Millikan & Companay
  • Patent number: 6426416
    Abstract: The process for chemically modifying metal-free, colored anthraquinone or condensed anthraquinone compounds or the compounds prepared by said process for improving one or more properties thereof such as water dispersibility, compatibility with other organics, or increased chemical reactivity, wherein the process includes providing material with from 1-6 sulfonylhalide groups or sulfonate ester groups or mixtures thereof, and contacting the material under sulfonamido forming conditions with one or more reactants containing one or more poly(oxyalkylene) moieties, each of the reactants having from 1 to 4 functional amino groups, and each of the poly(oxyalkylene) moieties being comprised of from about 4 to about 200 epoxide reactant residues at least about 50 mole percent of which residues contain 2-4 carbons and wherein the total of said epoxide reactant residues is from about 4 to about 600.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: July 30, 2002
    Assignee: Millikan & Companay
    Inventors: Max Allen Weaver, Edward William Kluger, David Jesse Moody