Waterborne antifouling coating composition

摘要

The invention provides a waterborne antifouling coating composition comprising (i) a binder polymer, (ii) a pigment and (iii) no biocide or a biocide selected from (a) a copper biocide or a copper biocide in combination with at least one or more co-biocide(s), or (b) a copper-free biocide or a copper-free biocidein combination with at least one or more co-biocide(s), with the proviso that the biocide is not a copper biocide in combination with zinc pyrithione, and wherein the pigment volume concentration of the waterborne antifouling coating composition is greater than 80% and less than 95%.

主权项

1. A method of preventing fouling on a marine vessel in an aqueous environment, the method comprising coating the marine vessel with a waterborne antifouling coating composition and submersing the coated marine vessel in the aqueous environment, wherein the waterborne antifouling coating composition comprises
i. a binder polymer, ii. a pigment, and iii. no biocide, or a biocide selected from
(a) a copper biocide or a copper biocide in combination with at least one or more co-biocide(s), or(b) a copper-free biocide or a copper-free biocide in combination with at least one or more co-biocide(s),with the proviso that the biocide is not a copper biocide in combination with zinc pyrithione,and wherein the pigment volume concentration of the waterborne antifouling coating composition is greater than 80% and less than 95%, and wherein the amount of the binder polymer in the waterborne antifouling coating composition ranges from 0.5 to 3.0 weight %, based on the total weight of all the components in the waterborne antifouling coating composition.