Light- and bright-coloured antifouling paints comprising 2-trihalogenomethyl-3-halogeno-4-cyano pyrrole derivatives that are suitable as barnaclecides

摘要

2-Trihalogenomethyl-3-halogeno-4-cyano pyrrole derivatives substituted in position 5 and optionally in position 1 are used as barnaclecide in antifouling paints, which can therefore be formulated as light- or bright-coloured, particularly as bright white. The substituent in position 5 is selected from the group consisting of C1-8 alkyl, C1-8 monohalogenoalkyl, C5-6 cycloalkyl, C5-6 monohalogenocycloalkyl, benzyl, phenyl, mono- and di-halogeno-benzyl or -phenyl, mono- and di-C1-4 alkyl benzyl or phenyl, and monohalogeno mono-C1-4-alkyl benzyl or phenyl. The optional substituent in position 1 is selected from the group consisting of C1-4 alkyl and C1-4 alkoxy C1-4 alkyl. Antifouling paints may contain 0.5 to 9.9 wt.% of barnaclecide, based on the total weight of the dry mass of the composition, preferably 1 to 6 wt.%, most preferably 1.5 to 4 wt.%.