| 摘要 |
Described are one-component, curable coating compositions that include (a) a polymer having a plurality of alkoxysilane groups; (b) a polyepoxide having a plurality of epoxide groups connected to a compound, oligomer, or polymer through ester linkages, ether linkages, or a combination of ester linkages and ether linkages; (c) a chelated metal alkoxide, in which the metal is aluminum, titanium, or zirconium, or a mixture of such chelated metal alkoxides; and (d) a monofunctional di- or trialkoxysilane compound, which may be volatile, with the proviso that the coating compositions are free of, or essentially free of, polymers with hydroxyl groups, primary amine groups, and secondary amine groups (i.e., amine groups with at least one active hydrogen, >N—H). These one-component, curable coating compositions do not require any additional ingredients to be mixed in before application, are storage stable with do not build viscosity during use (in other words, in use the pot-life is not shortened by crosslinking of internal components) so that excess material can be reused, yet the coating composition provides ambient cure when applied in a coating layer and exposed to moisture (i.e., atmospheric water vapor). |
| 主权项 |
1. A one-component, curable coating composition comprising:
(a) a polymer having a plurality of alkoxysilane groups; (b) a polyepoxide having a plurality of epoxide groups connected through ester linkages, ether linkages, or a combination of ester linkages and ether linkages; (c) a chelated metal alkoxide, wherein the metal is selected from the group consisting of aluminum, titanium, zirconium, or mixtures thereof; (d) a monofunctional di- or trialkoxysilane compound; and (e) a volatile dicarbonyl compound; with the proviso that the coating composition is free of polymers with hydroxyl groups, primary amine groups, and secondary amine groups. |
