Curable antifouling composition, method of use, and articles
Assignee3M Innovative Properties Company
InventorsZai-Ming Qiu, Alexander J. Kugel, Michael J. Svarovsky
Life of this patent
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Abstract
Curable antifouling compositions include fluorinated polymers that contain a perfluoropolyether group, a poly(alkyleneoxide) group, a hydrolyzable silane group and a cationic curative. The curable antifouling compositions can be applied on a surface of a substrate, and at least partially cured to provide an article with antifouling properties.
Claims15
A curable antifouling composition comprising components:
- a) at least one fluorinated polymer, wherein each said at least one fluorinated polymer independently comprises:
- at least one divalent group A represented by the formula
- wherein R1 independently represents H or methyl, X independently represents a covalent bond or a divalent organic linking group, L1 independently represents a covalent bond or a divalent organic linking group, and Rfl independently represents a monovalent perfluorinated organic group;
- at least one divalent group B represented by the formula
- wherein L2 independently represents a covalent bond or divalent organic linking group, k represents an integer in the range of from 1 to 4, R2 independently represents H or an alkyl group having from 1 to 18 carbon atoms, and f independently represents an integer in the range of from 3 to 200, inclusive;
- at least one divalent group C represented by the formula
- wherein L3 independently represents a covalent bond or a divalent organic linking group, and each Y1, Y2, and Y3 independently represents a hydrolyzable group or a hydrocarbyl group having from 1 to 10 carbon atoms, with the proviso that at least one of Y1, Y2, and Y3 is a hydrolyzable group;
- and
- b) cationic curative.
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:
- a) at least one fluorinated polymer, wherein each said at least one fluorinated polymer independently comprises:
- at least one divalent group A represented by the formula
- wherein R1 independently represents H or methyl, X independently represents a covalent bond or a divalent organic linking group, L1 independently represents a covalent bond or a divalent organic linking group, and Rfl independently represents a monovalent perfluorinated organic group;
- at least one divalent group B represented by the formula
- wherein L2 independently represents a covalent bond or divalent organic linking group, k represents an integer in the range of from 1 to 4, R2 independently represents H of an alkyl group having from 1 to 18 carbon atoms, and f independently represents an integer in the range of from 3 to 200, inclusive;
- at least one divalent group C represented by the formula
- wherein L3 independently represents a covalent bond or a divalent organic linking group, and wherein each Y1, Y2, and Y3 independently represents a hydrolyzable group or an alkyl group having from 1 to 7 carbon atoms, with the proviso that at least one of Y1, Y2, and Y3 is a hydrolyzable group;
- and
- b) cationic curative.
Dependencies are inferred from the claim text.