Branched polymer and antifouling coating composition comprising the polymer

Abstract

The invention relates to a branched silyl ester copolymer comprising repeating units of (A) one or more monomers containing one polymerisable ethylenically unsaturated bond, of which at least one monomer is containing silyl ester functionality, (B) one or more monomers containing two or more polymerisable ethylenically unsaturated bonds, and (C) one or more chain transfer agents. Furthermore, theinvention relates to the use of said branched silyl ester copolymer as a component in an antifouling coating composition, as well as to an antifouling coating composition comprising said branched silyl ester copolymer and one or more other components.

Description

technical field [0001] The present invention relates to a branched silyl ester copolymer and an antifouling coating composition containing the branched silyl ester copolymer. Background technique [0002] Some submerged surfaces are covered with marine life such as green and brown algae, barnacles, mussels, tube worms, and more. For marine structures such as ships, oil platforms, buoys, etc., this fouling is undesirable and has economic consequences. This fouling can lead to biodegradation of the surface, increasing loading and accelerating corrosion. For ships, this fouling will increase frictional resistance, causing the ship to slow down, increase fuel consumption, and possibly reduce the ship's maneuverability. [0003] To prevent the deposition and growth of marine organisms, some antifouling coatings are used. These coatings generally consist of film-forming binders together with various components such as dyes, fillers, solvents and biologically active substances. ...

AI Technical Summary

Problems solved by technology

This fouling can lead to biodegradation of the surface, increasing loading and accelerating corrosion

For ships, this fouling will incr

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