Antifoulant marine structures compositions and methods thereof
Inventors
HUNT, Emily • DODGE, Paige • KELLY, Trent • ALLEN, Benton
Assignees
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Publication Number
US-12604891-B2
Publication Date
2026-04-21
Expiration Date
Abstract
The invention relates to antifoulant compositions comprising i) an antimicrobial composition and ii) one or more polymers as well as antifoulant compositions comprising i) an antimicrobial composition and ii) one or more composite materials. The invention includes the antifoulant compositions, methods for making the antifoulant compositions, and methods of reducing presence of a fouling organism on a surface of a composition utilizing the antifoulant compositions.
Core Innovation
The invention relates to antifoulant compositions for marine structures. The compositions comprise an antimicrobial composition and one or more polymers, wherein at least a portion of the one or more polymers are extruded.
The antimicrobial composition is a mixture that includes antimicrobial components consisting of silver, alumina, and zinc oxide. The polymers comprise polyacrylic acid (PAA), poly(methyl methacrylate) (PMMA), acrylonitrile butadiene styrene (ABS), polyamide, polylactic acid (PLA), polybenzimidazole (PBI), polycarbonate (PC), polyether sulfone (PES), polyoxymethylene (POM), polyether ether ketone (PEEK), polyetherimide (PEI), polyphenylene oxide (PPO), polyphenylene sulfide (PPS), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), or any combination thereof.
Also disclosed are antifoulant compositions comprising an antimicrobial composition and one or more composite materials, where the antimicrobial composition again includes antimicrobial components consisting of silver, alumina, and zinc oxide. Methods of reducing fouling are described that place the composition in a liquid environment to reduce fouling by fouling organisms over extended periods.
Claims Coverage
The partial content includes two independent claims that both center on antifoulant compositions combining an antimicrobial mixture consisting of silver, alumina, and zinc oxide with either extruded polymers or composite materials.
Antifoulant composition with extruded polymers and antimicrobial mixture of silver, alumina, and zinc oxide
An antifoulant composition comprising an antimicrobial composition and one or more polymers, wherein at least a portion of the one or more polymers are extruded; the one or more polymers comprise polyacrylic acid (PAA), poly(methyl methacrylate) (PMMA), acrylonitrile butadiene styrene (ABS), polyamide, polylactic acid (PLA), polybenzimidazole (PBI), polycarbonate (PC), polyether sulfone (PES), polyoxymethylene (POM), polyether ether ketone (PEEK), polyetherimide (PEI), polyphenylene oxide (PPO), polyphenylene sulfide (PPS), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), or any combination thereof; and wherein the antimicrobial composition is a mixture wherein the mixture includes antimicrobial components consisting of silver, alumina, and zinc oxide.
Antifoulant composition with composite materials and antimicrobial mixture of silver, alumina, and zinc oxide
An antifoulant composition comprising an antimicrobial composition and one or more composite materials, wherein the antimicrobial composition is a mixture wherein the mixture includes antimicrobial components consisting of silver, alumina, and zinc oxide.
Overall claim coverage is directed to antifoulant compositions that use a defined antimicrobial mixture of silver, alumina, and zinc oxide combined with extruded polymers selected from a specified list or one or more composite materials.
Stated Advantages
Reducing fouling over extended periods when the composition is placed in a liquid environment.
Documented Applications
Reducing fouling by placing the composition in a liquid environment, including underwater conditions, such as salt water or fresh water.
Marine fouling contexts including bacteria (including Gram positive and Gram negative), and animal fouling by mollusks such as oysters and arthropods such as barnacles (Balanus amphitrite amphitrite).
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