The invention relates to a coating composition comprising a) seawater-hydrolyzable groups covalently linked to a polymer backbone, which seawater-hydrolyzable groups are capable of undergoing hydrolysis or ion-exchange when exposed to sea-water, rendering the polymer partially soluble or dispersible in seawater, and b) zwitterionic groups covalently linked to a polymer backbone wherein the polymer backbones to which the sea-water-hydrolyzable groups and the zwitterionic groups are attached serve as a film-forming binder in the coating composition, and wherein the molar ratio of the seawater-hydrolyzable groups a) to the zwitterionic groups b) is 0.1 or higher. The invention also relates to a method of providing a substrate with anti-fouling performance and to a coated substrate.
本发明涉及一种涂料组合物,该组合物包含 a) 与聚合物主链共价连接的海
水可
水解基团,这些海
水可
水解基团在暴露于海
水中时能够发生
水解或离子交换,从而使聚合物可部分溶解或分散于海
水中、b) 与聚合物骨架共价连接的齐聚物基团,其中可被海
水水解的基团和齐聚物基团所连接的聚合物骨架在涂层组合物中用作成膜粘合剂,其中可被海
水水解的基团 a) 与齐聚物基团 b) 的摩尔比为 0.1 或更高。本发明还涉及一种提供具有防污性能的基底和涂层基底的方法。