| 摘要 |
A composition comprises a liquid solvent or dispersant or a surface coating composition and a condensate of a dihydroxybenzene with an aldehyde. The dihydroxybenzene is particularly 1,3-dihydroxybenzene. The condensate is a macrocyclic compound and is typically a cyclic tetramer. The aldehyde is preferably a long-chain aldehyde, or mixture of aldehydes, for example hexanal, dodecanal or tetradecanal. The surface coating composition may be a film forming binder composition, for example an alkyd-based paint composition. The composition may be coated onto a metal to provide improved corrosion resistance. Alternatively, the composition may be a lubricant composition having anti-wear characteristics. |
