C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/1, 260/358, 26
C09B 57/02 (2006.01) C09B 57/00 (2006.01) D06P 1/00 (2006.01)
Patent
CA 1129874
ABSTRACT OF THE DISCLOSURE There are described novel dyes of the formulae Image Image (I) and (II) in which R1 and R2 independently of ? other are each hydrogen, alkyl, alkyl substituted by hydroxy, alkoxy, carbalkoxy, phenoxy, cyano, carbon- amido, halogen or acetoxy. cycloalkyl, aralkyl o aryl, or R1 and R2 together with the nitrogen atom, and optionally with the inclusion of further hetero atoms, can also form a 5- to 7- membered heterocycle, or one of the radicals R1 or R2 can be linked with the carbon atom, in the o- position with respect to the amino group, of the ring A to form a fused-on, saturated 5- or 6-membered ring, X is NR3, =NCOR4, Image , =NH or =0, wherein R3 is alkyl, phenyl or phenyl substituted by C1 to C3-alkyl, C1 to C2-alkoxy, acylamino, halogen, hydroxy, cyano, rhodan, amino, nitro, alkylamino, dialkylamino, phenylamino, phenyl, phenoxy, acyl, acyloxy or N-phenyl-N-alkylamino, R4 is alkyl, aralkyl, aryl, vinyl, alkoxy, phenoxy or amino, and R5 is cyano, carbalkoxy, or carbon- amide substituted by methyl, ethyl, benzyl or phenyl, and R6 is an electron- attracting radical processes for producing them, and their use for dyeing and printing synthetic and semi-synthetic fibres, such as polyamide and cellulose triacetate materials, especially however polyester materials.
313052
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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