To obtain an agent to efficiently prevent attachment of marine organisms, particularly serpulid Polychaetes, which cause various troubles by growing on the surface of various tools and materials in sea water, by including a triphenylborane-alkali metal hydroxide adduct as an active ingredient.
This composition is obtained by including a triphenylborane- alkali metal hydroxide adduct (e.g. triphenylborane-sodium hydroxide and triphenylborane-potassium hydroxide) as an active ingredient. It is usually preferable that the amount of application is 0.001-0.5 mg/l in the objective sea for 12-24 h/d or so. The objective marine organisms to prevent their attachment include serpulid Polychaetes (e.g. Hydroides elegans Haswell), mussel, bryozoan, and barnacle.
KUMAGAI HIROO
MIZUMORI TAKASHI
KATSUMOTO AKIRA
