USA As Represented by Secretary of the Navy

William L Yaeger

Timothy L Dapp

William B Mercer

Alexander Lebovits

This invention relates to polymeric materials formable by casting at room mperature and having antifouling materials incorporated therein. It is the reaction product of (a) with polyether polyols and methylene bis(4-cyclohexyl) isocyanate, where (a) is a polymeric composition which is the reaction product of a distilled tri-butyltin oxide with a copolymer of either methyl methacrylate of methyl acrylate and, with methacrylic acid or acrylic acid in such proportions that 4% of the carbonyl groups remain unreacted.

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Queen-Anne, MD, United States of America

William L Yaeger