Abstract: Dyes of the formula ##STR1## in which D is the radical of an organic dye, R is hydrogen or a low molecular weight alkyl group, X is an unsubstituted or substituted alklyl or alkenyl radical, one Y is halogen and the other Y is a substituent.

Abstract: Dyes of the formula ##STR1## in which D is the radical of an organic dye, R is hydrogen or a low molecular weight alkyl group, X is an unsubstituted or substituted alkyl or alkenyl radical, one Y is halogen and the other Y is a substituent.

Abstract: Fibre-reactive disazo dyestuffs of the formula ##STR1## wherein X represents a halogen atom, Y represents the radical of an enolisable coupling component, and the bridging member --NH--D--NH-- represents the radical of an aliphatic or aromatic diamine.These dyestuffs are suitable for dyeing silk, leather, wool, superpolyamide, superpolyurethanes and cellulose-containing materials to produce dyeings of high depth of color and good fastness to light and wet processing.

Abstract: The invention provides a process for the production of 2,4-difluoro-6-amino-s-triazine, which comprises reacting cyanuric fluoride in aqueous solution with ammonia or an ammonium salt, at a temperature between -5.degree. C. and +10.degree. C. and a pH value between 7.25 and 9.

Abstract: Tetrareactive disazo dyestuffs of the formula ##STR1## wherein D represents a benzene radical containing at least one sulpho group; K represents a radical of 1-amino(or aminobenzoylamino)-8-naphthol-3,6-disulphonic acid, of 1-amino(or aminobenzoylamino)-8-naphthol-4,6-disulphonic acid, of 2-amino(or aminobenzoylamino)-5-naphthol-7-sulphonic acid, of 2-amino(or aminobenzoylamino)-8-naphthol-6-sulphonic acid, of 2-amino(or aminobenzoylamino)-5-naphthol-1,7-disulphonic acid, or of 2-amino(or aminobenzoylamino)-8-naphthol-3,6-disulphonic acid; B represents an aliphatic or aromatic radical; R.sub.1, R.sub.2 and R.sub.

Abstract: New azo compounds containing the radical of a 3-halogeno-6-hydroxy-pyridone-(2) of the formula ##STR1## wherein X represents halo, R and R' represent hydrogen aryl, cyclohexyl, alkyl or substituted alkyl and D represents the residue of a diazo component of the benzene series, said compounds useful as dyestuffs.

Abstract: Bis-dihalogeno-s-triazinyl-ureas of the formula ##EQU1## wherein each of X.sub.1 and X.sub.2 is halogen.

Abstract: Fiber-reactive tetrazo dyes of the formula ##SPC1##Wherein each of D.sub.1 and D.sub.2 represents a benzene residue which contains at least one sulphonic acid group, one of the two substituents Y.sub.1 and Y.sub.2 represents the HO group and the other represents the H.sub.2 N group, X represents a halogen atom and B represents a benzene residue which is devoid of sulphonic acid groups, are suitable dyes for dyeing and printing materials of the most diverse kind, especially for dyeing of cellulosic materials of fibrous structure by the exhaustion process. The dyes are characterized by increased reactivity and high degree of fixation.