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Antimicrobial polymer

United States Patent

September 28, 2004
View the Complete Patent at the US Patent & Trademark Office
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A polymeric composition having antimicrobial properties and a process for rendering the surface of a substrate antimicrobial are disclosed. The polymeric composition comprises a crosslinked chemical combination of (i) a polymer having amino group-containing side chains along a backbone forming the polymer, (ii) an antimicrobial agent selected from metals, metal alloys, metal salts, metal complexes and mixtures thereof, and (iii) a crosslinking agent containing functional groups capable of reacting with the amino groups. In one example embodiment, the polymer is a polyamide formed from a maleic anhydride or maleic acid ester monomer and alkylamines thereby producing a polyamide having amino substituted alkyl chains on one side of the polyamide backbone; the crosslinking agent is a phosphine having the general formula (A).sub.3 P wherein A is hydroxyalkyl; and the metallic antimicrobial agent is selected from chelated silver ions, silver metal, chelated copper ions, copper metal, chelated zinc ions, zinc metal and mixtures thereof.
McDonald; William F. (Utica, OH), Wright; Stacy C. (Flint, MI), Taylor; Andrew C. (Ann Arbor, MI)
Michigan Biotechnology Institute (Lansing, MI)
09/ 850,324
May 7, 2001
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under NREL Subcontract NO. XXE-9-29058-01, Prime Contract No, DE-AC36-98G010337 awarded by the Department of Energy. The Government has certain rights in this invention.