| 摘要 |
A process for inhibiting fouling of a substrate in a foulig environment comprises applying to the substrate, before exposure to teh said environment, a composition which comprises: (A) a polymer carrying pendant and/or terminal curable functional groups, at least a major proportion of the repeating units in the polymer of (A) being other than siloxane units; (B) one or more polysiloxanes having pendant and/or terminal curable functional groups and selected from curable organohydrogen polysiloxanes and curable polydiorganosiloxanes, the curable functional groups in component (B) being capable of undergoing a curing reaction with the curable functional groups in component (A), and curing the applied composition comprising components (A) and (B), if necessary or desired in conjunction with a cross-linking agent, and thereafter applying a layer comprising: (C) a curable organohydrogen polysiloxane or polydiorganosiloxane, and curing the applied layer, if neccessary or desired in conjunction with a cross-linking agent. For enhanced fouling inhibition performance, the curable layer (C) is applied to a freshly-prepared coating formed by curing the composition comprising components (A) and (B). Alternatively, for restoration and/or repair, the curable layer (C) is applied to a coating formed initially by curing the composition comprising components (A) and (B), but which has been worn and/or damaged in use. |
