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Assignee3M Innovative Properties Company
InventorsZai-Ming Qiu, Alexander J. Kugel, Michael J. Svarovsky, G. Marco Bommarito
Estimating the term…
Curable antifouling compositions include fluorinated polymers that contain a poly(hexafluoropropylene oxide) segment, an ethylenically-unsaturated group, a poly(ethylene oxide) segment, and a free-radical initiator. The curable antifouling compositions can be coated on a surface of a substrate, and at least partially cured to provide an article with antifouling properties.
A curable antifouling composition comprising components:
A method of using a curable antifouling composition, the method comprising:
An article comprising a substrate having a surface, wherein at least a portion of the surface has an antifouling coating thereon, wherein the substrate is selected from the group consisting of marine vessel hulls, anchors, piers, docks, caissons, invasive medical devices, non-invasive medical devices, handrails, door knobs, countertops, membrane support frames, heat exchangers, microelectrochemical drug delivery devices, papermaking machines, tanks for holding liquid, water pipes, plumbing fixtures, and mariculture apparatuses, wherein the antifouling coating comprises an at least partially cured curable antifouling composition, and wherein the curable antifouling composition comprises components:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
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Characterised by the film-forming substance: synthetic film-forming substance
Coating compositions
Synthetic film-forming substance: vinyl-type polymers
Not modified by chemical after-treatment: containing fluorine atoms
Term end not estimated
The present disclosure broadly relates to compositions useful for inhibiting biofouling.
The term “biofouling” refers to the attachment of organisms to surfaces of objects. Biofouling typically occurs where water-based liquids are in contact with other materials. Biofouling is ubiquitous, but is most significant economically to the shipping industries, since high levels of biofouling on a ship's hull significantly increases drag and increases fuel consumption. Industrially important impacts of biofouling include: maintenance of mariculture, membrane systems (e.g., membrane bioreactors and reverse osmosis spiral wound membranes), and cooling water cycles of large industrial equipments and power stations. Biofouling can occur in oil pipelines carrying oils with entrained water especially those carrying used oils, cutting oils, oils rendered water-soluble through emulsification, and/or hydraulic oils. Other things impacted by biofouling include marine surfaces, medical surfaces, household surfaces, microelectrochemical drug delivery devices, papermaking and pulp industry machines, underwater instruments, fire protection system piping, and sprinkler system nozzles.
In the clinical area, biofouling in the form of biofilm formation is believed to have a significant role in catheter associated urinary tract infections (CAUTI) and ventilator associated pneumonia (VAP). CAUTIs comprise the largest percentage of hospital acquired infections (HAIs) and are the second most common cause of nosocomial bloodstream infections.
FIG. 1 is a schematic perspective view of an exemplary pipe having an inner antifouling coating.
It should be understood that numerous other modifications and embodiments can be devised by those skilled in the art, which fall within the scope and spirit of the principles of the disclosure. The FIGURE may not be drawn to scale.
Curable antifouling compositions useful in practice of the present disclosure include free-radical initiator (i.e., at least one free-radical initiator) and at least one fluorinated polymer (hereinafter identified as fluoropolymer FP), that independently comprises: m divalent groups represented by the formula
n divalent groups represented by the formula