Item having anti-soiling properties and intended for aquatic and particularly ocean use

摘要

The present invention relates to an item having anti-soiling properties and intended for aquatic, and particularly ocean use, and to a method for slowing the growth of aquatic organisms on submersible or semi-submersible structures.

主权项

1. An article with antifouling properties for use in aquatic applications, optionally marine applications, comprising:
a) a support, b) at least one adhesion-promoting coat deposited on said support, and c) at least one antifouling coat deposited on said adhesion-promoting coat, wherein said antifouling coat is obtained after deposition and curing on contact with atmospheric moisture of a composition X comprising:
(i) at least one organosilicon compound A′ comprising at least two identical or different hydrolyzable and condensable groups, or at least two silanol functions ≡SiOH,(ii) at least one crosslinking agent B′, and(iii) a catalytically effective amount of at least one polycondensation catalyst C which is a heterometallic complex whose chemical formula comprises:
at least two different metal atoms M and M′, M being an atom chosen from the group constituted by the atoms of columns 2 and 13 of the Periodic Table of the Elements and M′ being an atom chosen from the group constituted by the atoms of column 4 of the Periodic Table of the Elements, andat least one alkoxide ligand or chelating ligand.