Patent ID: 8415018

Claim:
An article having antifouling properties and intended to be employed in aquatic uses, which comprises: a) a support, b) optionally, at least one primer coat on said support comprising at least one anticorrosive product, c) at least one adhesion-promoting coat, deposited on said primer coat or on said support when the primer coat is absent, and d) at least one antifouling coat, deposited on said adhesion-promoting coat, wherein the antifouling coat and/or the adhesion-promoting coat are prepared from a curable polyorganosiloxane composition containing no metal catalyst, and wherein said composition comprises, a silicone base B capable of curing by means of a polycondensation reaction so as to give a silicone elastomer and, a catalytically effective amount of at least one polycondensation catalyst A which is a nonsilylated organic compound corresponding to formula (I): wherein: the R 1 radicals, which can be identical or different, represent, independently of one another, a linear or branched monovalent alkyl group, a cycloalkyl group, or a (cycloalkyl)alkyl group, said cycloalkyl group or (cycloalkyl)alkyl group being substituted or unsubstituted and possibly comprising at least one heteroatom or one fluoroalkyl group, the R 2 radical represents a hydrogen atom, a linear or branched monovalent alkyl group, a cycloalkyl group, an alkyl group substituted with a ring, said ring is substituted or unsubstituted and is able to comprise at least one heteroatom, an aromatic group, an arylalkyl group, a fluoroalkyl group, an alkylamine group or an alkylguanidine group, and the R 3 radical represents a linear or branched monovalent alkyl group, a cycloalkyl group, an alkyl group substituted with a ring, said ring is substituted or unsubstituted and is able to comprise at least one heteroatom, or arylalkyl, fluoroalkyl, alkylamine or alkylguanidine group, and wherein when the R 2 radical is not a hydrogen atom, the R 2 and R 3 radicals are able to be linked so as to form a 3-, 4-, 5-, 6- or 7-membered aliphatic ring optionally substituted with one or more substituents, and with the additional condition that the R 1 , R 2 and R 3 radicals do not comprise a silicon atom.