Courtaulds Coatings (Holdings) Limited

Courtaulds Coatings Limited

David E Arnold

Kenneth F Baxter

Julian E Hunter

James Reid

Michael J Nunn

George Hails

Andrian F Andrews

George Hails, Deceased

An antifouling coating composition comprising a binder comprising a non-volatile amine and rosin or maleinised or fumarised rosin. The non-volatile amine is preferably an amine of the formula I ##STR1## where R.sup.1 is a monovalent hydrocarbon group derived from a diterpene and R.sup.2 and R.sup.3 are hydrogen, alkyl or aryl, preferably present in a proportion by weight of 9:1 to 1:9 relative to the rosin or maleinised or fumarised rosin.

Antifouling coating

Fouling of a ship's hull is inhibited by an amine of the formula ##STR1## where R.sup.1 is a monovalent hydrocarbon group derived from a diterpene and R.sup.2 and R.sup.3 are each independently hydrogen, an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 12 carbon atoms. The amine acts as a paint binder and as a marine biocide. An antifouling coating composition may comprise a pigment with the said amine as binder. Alternatively an antifouling coating composition comprises as binder an acid-functional polymer whose acid groups are blocked by a monoamine group which forms an organic-solvent-soluble salt of the polymer.

Antifouling coatings

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Newcastle-upon-Tyne, United Kingdom

David E Arnold