Method of preparing capped polymers
AssigneeKawanee Industries
InventorsHarold A. Green, John J. Merianos, Alfonso N. Petrocci
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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.
Claims7
A method of making a capped polymer which comprises condensing a difunctional tertiary amine with a greater than molar equivalent amount of a 1,4-dihalo-2-butene, and then, after extracting the unreacted dihalo compound, reacting the condensation product with a monofunctional heterocyclic tertiary amine to form a linear polymer having a quaternary ammonium moiety at each end.
Dependencies are inferred from the claim text.