Abstract: The present invention relates to a fiber-dyeing agent (A) prepared by mixing two components (A1) and (A2), said agent being characterized in that component (A1) contains at least one compound of formula (I) 1

Abstract: The object of the present invention is the use of 4-nitro-2,1,3-benzoxadiazole derivatives of general formula (I) as dye in colorants for keratin fibers such as, for example, wool, silk, furs or hair and particularly human hair 1

Abstract: Mixtures essentially comprising compounds of formula I or II ##STR1## wherein X is a hydrogen atom or vinyl, A is a divalent aromatic radical which is unsubstituted or substituted by one or more C.sub.1 -C.sub.20 alkyl groups, halogen atoms or halogen-substituted C.sub.1 -C.sub.20 alkyl groups, R.sub.1, R.sub.1 ', R.sub.2, R.sub.2 ', R.sub.3 and R.sub.3 ' are each a hydrogen atom, or R.sub.1 and R.sub.1 ', R.sub.2 and R.sub.2 ' and R.sub.3 and R.sub.3 ' are each together ethylene, R.sub.4 is C.sub.1 -C.sub.6 alkyl, phenylalkyl containing 1 to 6 carbon atoms in the alkyl moiety or is trialkylsilyl containing 1 to 6 carbon atoms in each alkyl moiety, m is 0, 1 or 2, n is 0 or an average number from 1 to 200, p is an average number from 1 to 100 and q is 0 or an average number from 1 to 100, can be cured by heating and are suitable for making laminates, especially for fabricating copper-clad circuit boards.