Method for transformation of conventional and commercially important polymers into durable and rechargeable antimicrobial polymeric materials
AssigneeBoard of Regents, The University of Texas System
InventorsYuyu Sun, Zhaobin Chen
Life of this patent
Estimating the term…
Abstract
The present invention includes compositions and methods of making an antimicrobial polymer by mixing sterically hindered N-halo-amines with polymeric materials with a source of halides selected from sodium di-X-isocyanurate, sodium hypohalite, N—X-succinimide, and calcium hypohalite, and mixtures and combinations thereof, wherein X is selected from Cl or Br, and wherein the sterically hindered halo-amines are charged before or after mixing with the polymers, or combinations thereof.
Claims22
An antimicrobial polymer additive comprising a sterically hindered N-halo-amine with a molecular weight higher than 350 g/mol, comprising the moiety of 2,2,6,6-tetramethyl-N-chloro-4-piperidinyl structure.
A method of making an antimicrobial polymer comprising the steps of:
- forming a polymer with a sterically hindered amine;
- and exposing the polymer to a source of halide atoms.
A method of making an antimicrobial polymer comprising the steps of:
- mixing a sterically hindered amine with a source of halide atoms to form a sterically hindered N-halo-amine;
- and forming a polymer in the presence of the sterically hindered N-halo-amine.
A method of recharging an antimicrobial polymer comprising the steps of:
- exposing a polymer comprising a sterically hindered amine with a source of halide atoms.
An antimicrobial polymer additive comprising a sterically hindered N-halo-amine comprising the moiety of 2,2,6,6-tetramethyl-N-chloro-4-piperidinyl structure.
Dependencies are inferred from the claim text.