| 摘要 |
A description is given of carrier-bound compounds of the formula I <IMAGE> (I) in which R1, R2, R3, R4 and R5 independently of one another are hydrogen, halogen, nitro, cyano, CF3, C1-C15alkyl, C5-C12cycloalkyl, C2-C15alkenyl, C1-C12haloalkyl, C1-C12alkoxy, C1-C12alkylthio, C6-C10aryl, C6-C10aryloxy, C7-C12arylalkyl, -CO2R6, -COR6 or <IMAGE> in which at least one of the radicals R1 to R5 is hydrogen, halogen or C1-C15alkyl, and, in addition, the radicals R1 and R2, R2 and R3, R3 and R4 or R4 and R5 together with the carbon atoms to which they are attached form a benzo or cyclohexenyl ring, R6 is C1-C20alkyl, C2-C20alkyl which is interrupted by oxygen, sulfur or >N-R9; or is C7-C12arylalkyl, R7 and R8 independently of one another are hydrogen, C1-C24alkyl or C2-C24alkyl which is interrupted by oxygen, sulfur or >N-R9, R9 is hydrogen or C1-C8alkyl, and n is an integer from the range from 1 to 10, as corrosion inhibitors in coating compositions for protecting metallic surfaces.
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