Antifouling coatings

摘要

An antifouling coating composition comprises a binder which is a salt of an amine containing at least one aliphatic hydrocarbon group having 8 to 25 carbon atoms and an addition copolymer of an olefinically unsaturated sulphonic acid, acid sulphate ester, phosphonic acid or acid phosphate ester and at least one olefinically unsaturated comonomer. The coating composition includes an ingredient having biocidal properties for aquatic organisms. The amine is preferably an amine having two aliphatic hydrocarbon groups each having 8 to 25 carbon atoms and the copolymer contains at least 5 mole % of units of an organocyclic ester or amide (A) of an olefinically unsaturated carboxylic acid. The organocyclic ester or amide (A) is preferably an isobornyl ester.