Low leaching antifouling organometallic polyvinyls
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsEdward J. Dyckman, Deborah M. Andersen, Eugene C. Fischer
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Abstract
Marine structures which are designed to be submerged in an aqueous environt containing fouling organism are protected from fouling by the use of an organotin containing polymer wherein the tin is chemically bonded to the polymer. The polymer inhibits fouling of the exposed surface of the structure while minimizing the adverse effects on the surrounding environment due to reduced leaching of the organotin compound from the polymer.
Claims12
A composition of matter for preventing the growth of fouling organisms on marine structures said composition being characterized by a low leaching rate of the antifouling agent from the composition and comprising an organotin containing polymer, said polymer being the reaction product of a copolymer of methyl vinyl ether and maleic acid and an organotin oxide of the formula:
- ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are selected from the group consisting of propyl, butyl, phenyl and benzyl.
A method for preventing the growth of fouling organisms on a marine structure which comprises applying to the surface of said structure a coating of an organotin containing polymer said polymer being the reaction product of a copolymer of methyl vinyl ether and maleic acid and an organotin oxide of the formula:
- ##STR3## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are selected from the group consisting of propyl, butyl, phenyl and benzyl.
A composition of matter for preventing the growth of fouling organisms on marine structures said composition being characterized by a low leaching rate of the antifouling agent from the composition and comprising an organotin containing polymer, said polymer being the reaction product of a copolymer of methyl vinyl ether and maleic acid and an organotin hydroxide of the formula:
- ##STR4## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are selected from the group consisting of propyl, butyl, phenyl and benzyl.
A method for preventing the growth of fouling organisms on a marine structure which comprises applying to the surface of said structure a coating of an organotin containing polymer said polymer being the reaction product of a copolymer of methyl vinyl ether and maleic acid and an organotin hydroxide of the formula:
- ##STR5## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are selected from the group consisting or propyl, butyl, phenyl and benzyl.
Dependencies are inferred from the claim text.