| 摘要 |
<p>Dyestuffs of formula (I) are new: (where R is OH, amino, 1-4C alkyl-amino, or cycloalkylamino; n is 1 or 2; p is 1 or 2; q is 2,3 or 4;; (p+q)=2n+1). (I) are disperse dyes useful for (semi)synthetic fibres, esp. polyesters but also for superpolyamides, polyurethanes, acrylics, polyolefins and cellulose triacetate. they can be applied by conventional dyeing and printing techniques, and give strong, light-fast dyeings.</p> |
