| 摘要 |
PURPOSE:To carry out coating easily under water as in coating on land to form a coat having excellent adhesion and corrosion resistance, by protecting underwater structures by using a base resin obtd. from a specified alcohol ester and an epoxy resin, and a hardener. CONSTITUTION:An underwater structure is protected by using a two-pack compsn. mainly composed of a base resin (a) obtd. from an alcohol ester of a polyhydric phenolic carboxylic acid contg. neighboring hydroxyl groups and an epoxy resin and a hardener (b) for epoxy resin. As the polyhydric phenolic carboxylic acid, those contg. at least one carboxyl group can be used. Preferred examples thereof are catechol-3-carboxylic acid and tannic acid. If desired, a filler may be used. The use of the filler is effective in relaxing stress and improving the mechanical strength of a cured article. Examples of the fillers are calcium carbonate, talc and carbon black.
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