| 摘要 |
PURPOSE:An antifouling agent, consisting of a soluble glass containing monovalent copper, rich in preservation quality for a long period, having antifouling action for a long period at the same time, capable of exhibiting effect on optionally variable amount of elution of the monovalent copper effective for the antifouling action and useful for preventing the staining of marine organisms. CONSTITUTION:An antifouling agent consisting of a soluble glass, stably present in the form of Cu<+> ion or fine Cu2O particles as a glass matrix component or crystallite, e.g. copper oxide, cuprous oxide, etc., in the composition, containing a glass ingredient containing monovalent copper slowly eluting from the surface according to the dissolution of the glass ingredient and capable of controlling the solubility by the composition ratio of one or two or more network forming oxides of SiO2, B2O3 and P2O5 and network modifying oxides, e.g. Na2O, K2O, CaO, BaO, Al2O3, etc. The above-mentioned agent is used for preventing staining of ships, marine structures, cooling water inlet pipes of thermal power generation plants, fishing nets etc., by marine organisms, e.g. barnacle, slime, etc.
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