Patent ID: 9534121
Date: 2017-01-03
CPC Classifications: C08G,C08K,C08L,C09D

Claim:
1. A fouling control coating composition comprising: A) 50-90% by dry weight of the coating composition of a polysiloxane-based binder system consisting of (i) a binder and optionally (ii) a cross-linking agent, wherein the binder (i) constitutes 20-90% by dry weight of the coating composition, and is a curable diorganopolysiloxane represented by general formula (1): wherein: B) 0 to 35% by dry weight of the coating composition of pigments and/or fillers; C) 0.01-20% by dry weight of one or more hydrophilic-modified polysiloxanes, wherein the hydrophilic-modified polysiloxanes are selected from poly(oxyalkylene)-modified polysiloxanes, wherein the poly(oxyalkylene) is selected from the group consisting of polyoxyethylene, polyoxypropylene and poly(oxyethylene-co-oxypropylene), and D) one or more biocides, wherein said one or more biocides are selected from the group consisting of an organic biocide and cuprous oxide; wherein the weight ratio between the one or more hydrophilic-modified polysiloxanes and the one or more biocides is in the range 1:0.2 to 1:6, and wherein the one or more hydrophilic-modified polysiloxanes do not contain groups that can react with the binder or any cross-linker.