Patents Assigned to Kawanee Industries
  • Method of preparing capped polymers
    Patent number: 4055712
    Abstract: A method of inhibiting the growth of microorganisms which comprises applying thereto microbiocidal quaternary ammonium polymers which are made by condensing a difunctional tertiary amine with an excess of 1,4-dihalo-2-butene, then after removing the unreacted 1,4-dihalo-2-butene, adding to the reaction product a calculated quantity of a heterocyclic monofunctional tertiary amine for the purpose of forming a linear polymer whose termini at both ends are quaternary ammonium moieties.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: October 25, 1977
    Assignee: Kawanee Industries
    Inventors: Harold A. Green, John J. Merianos, Alfonso N. Petrocci