| 摘要 |
<p>Novel metal complexes and use thereof of the Dlsclosure The invention relates to novel 1:1 metal complexes of a divalent transition metal and an azo compound of the formula (1) (1) wherein X is a hydrogen or a halogen atom, an alkyl, alkoxy, aryloxy, nitro, acylamino, ureido, arylureido, thioureido, thiocyano or sulfamoyl group or a phthalimido group which is unsubstituted or substituted by halogen atoms, Y is a hydrogen or halogen atom, an alkyl or alkoxy group, and R is an alkyl, alkoxycarbonyl, carbamoyl or alkylcarbamoyl group, or wherein X and Y, together with two vicinal carbon atoms of the benzene ring, form a fused benzene or imidazolone ring. These metal complexes, in particular the nickel and copper complexes, are suitable for the mass colouration of polymer fibres, especially polyolefins, polyamides or polyeaters. The coloured fibres have good fastness to heat, light and weather, as well as good rub- and wetfastness properties.</p> |
