| 摘要 |
The invention relates to an aqueous coating composition comprising water as liquid diluent and a) 15-50% by weight of an organic polymeric binder which is obtainable by the reaction of i) an organic polymeric binder having crosslinkable functional groups and ii) a silane, b) 2-30% by weight of an epoxide-functional material c) 2-30% by weight of a silane-modified silica sol d) 0-30% by weight of pigments and fillers, e) 0-10% by weight of usual additives, and f) 1-15% by weight of a crosslinker capable of reacting with the crosslinkable functional groups of the organic polymeric binder, wherein the% by weight are calculated on the weight of the entire composition, and wherein the composition has a pH in the range of 4.0to 7.5. |
