초록 ▼

Polymers comprising two the more recurring units of formula [Figure] wherein A1 is an aromatic bridging group each K1 is independently the radical of a coupling component, E is an aliphatic, aromatic or aromatic heterocyclic bridging radical, each R1 and R2 is independently C1-4alkyl substituted C1-

Polymers comprising two the more recurring units of formula [Figure] wherein A1 is an aromatic bridging group each K1 is independently the radical of a coupling component, E is an aliphatic, aromatic or aromatic heterocyclic bridging radical, each R1 and R2 is independently C1-4alkyl substituted C1-4alkyl, C3-6alkenyl or substituted C3-6alkenyl or both R1\s together with the nitrogen atom to which they are attached and/or both R23 s together with the nitrogen atom to which they are attached form a morpholinium, piperidinium or pyrrolidinium group, and each Ais independently a non-chromophoric anion, are useful as dyes, particularly for dyeing paper and leather.

대표청구항 ▼

A polymer comprising two or more recurring units of the formula [Figure] wherein A1 is an aromatic bridging radical, E is an aliphatic, aromatic or aromatic heterocyclic bridging radical, each K1 is independently the radical of a coupling component, each R1 is independently C1-4alkyl, phenyl(C1-4alk

A polymer comprising two or more recurring units of the formula [Figure] wherein A1 is an aromatic bridging radical, E is an aliphatic, aromatic or aromatic heterocyclic bridging radical, each K1 is independently the radical of a coupling component, each R1 is independently C1-4alkyl, phenyl(C1-4alkyl), C2-4alkyl monosubstituted by hydroxy or halo or C3-6alkenyl or both R1′s taken together and with the nitrogen atom to which they are attached are morpholinium, piperidinium or pyrrolidinium, each R2 is independently C1-4alkyl, phenyl(C1-4alkyl), C2-4alkyl monosubstituted by hydroxy or halo or C3-6alkenyl or both R2′s taken together and with the nitrogen atom to which they are attached are morpholinium, piperidinium or pyrrolidinium, and each Ais independently a non-chromophoric anion, with the proviso that the recurring units are linked in such a way that a K1 of one unit is linked to an R2-bearing nitrogen atom of another unit.