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US 12,575,562 B2Granted
Apparatus and method for protecting against microbial hazards
AssigneeCindy Lynn Favre Revocable Trust
InventorsScott M. Favre, A. Louise Perkins
Life of this patent
Estimating the term…
Abstract
An antimicrobial material that includes an antimicrobial layer comprising an antimicrobial agent entrapped within a polymer matrix is provided. The polymer matrix is water stable, and an exposed surface of the antimicrobial layer exhibits sustained-release antimicrobial properties for at least 7 days. A composition for forming the antimicrobial material is also provided, as well as, a method of making the antimicrobial material.
Claims20
An antimicrobial material, comprising:
- an antimicrobial layer comprising an antimicrobial agent entrapped within a polymer matrix, wherein the polymer matrix is water stable, wherein the polymer matrix is polystyrene-block-polyisoprene or polystyrene-block-polybutadiene, and wherein the antimicrobial layer has a contact surface and an exposed surface opposite the contact surface, wherein an exposed surface of the antimicrobial layer exhibits sustained-release of the antimicrobial agent entrapped within the polymer matrix to provide antimicrobial properties for at least 7 days measured using an aqueous extraction-based release assay,
- wherein the antimicrobial agent comprises thymol wherein a mass ratio of thymol to polymer matrix in the antimicrobial layer is from 1:4 to 1:8, and
- the antimicrobial material is a cast film.
An antimicrobial material, comprising:
- an antimicrobial layer comprising an antimicrobial agent entrapped within a polymer matrix, wherein the polymer matrix is water stable, wherein the polymer matrix is polystyrene-block-polyisoprene or polystyrene-block-polybutadiene, and wherein the antimicrobial layer has a contact surface and an exposed surface opposite the contact surface, wherein an exposed surface of the antimicrobial layer exhibits sustained-release of the antimicrobial agent entrapped within the polymer matrix to provide antimicrobial properties for at least 7 days measured using an aqueous extraction-based release assay,
- wherein the antimicrobial agent consists of thymol wherein a mass ratio of thymol to polymer matrix in the antimicrobial layer is from 1:4 to 1:8, and
- the antimicrobial material is a cast film.
Dependencies are inferred from the claim text.