| 摘要 |
Dyestuffs of the formula WHEREIN R denotes a straight-chain or branched-chain alkyl group with 1-4 C atoms, B and B1 independently of one another denote hydrogen or optionally substituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl or heteroaryl radicals or conjointly and together with the N atom form a ring which is optionally interrupted by hetero-atoms and the ring A can be substituted by 1 - 3 non-ionic substituents, ARE SUITABLE FOR THE BULK DYEING OF SYNTHETIC LINEAR POLYESTER. |
