US 4,675,388 AGranted

Polymeric azo compounds containing at least four cationic groups

AssigneeSandoz Ltd.

InventorsManfred Greve, Emil J. Moriconi, Helmut Moser

Life of this patent

Estimating the term…

Loading patent…

Abstract

Polymers comprising two the more recurring units of formula ##STR1## wherein A.sub.1 is an aromatic bridging group each K.sub.1 is independently the radical of a coupling component, E is an aliphatic, aromatic or aromatic heterocyclic bridging radical, each R.sub.1 and R.sub.2 is independently C.sub.1-4 alkyl substituted C.sub.1-4 alkyl, C.sub.3-6 alkenyl or substituted C.sub.3-6 alkenyl or both R.sub.1 's together with the nitrogen atom to which they are attached and/or both R.sub.2 3 s together with the nitrogen atom to which they are attached form a morpholinium, piperidinium or pyrrolidinium group, and each A.sup..crclbar. is independently a non-chromophoric anion, are useful as dyes, particularly for dyeing paper and leather.

Claims17

Dependent claims

A polymer comprising two or more recurring units of the formula ##STR51## wherein A.sub.1 is an aromatic bridging radical,

E is an aliphatic, aromatic or aromatic heterocyclic bridging radical,
each K.sub.1 is independently the radical of a coupling component,
each R.sub.1 is independently C.sub.1-4 alkyl, phenyl(C.sub.1-4 alkyl), C.sub.2-4 alkyl monosubstituted by hydroxy or halo or C.sub.3-6 alkenyl or
both R.sub.1 's taken together and with the nitrogen atom to which they are attached are morpholinium, piperidinium or pyrrolidinium,
each R.sub.2 is independently C.sub.1-4 alkyl, phenyl(C.sub.1-4 alkyl), C.sub.2-4 alkyl monosubstituted by hydroxy or halo or C.sub.3-6 alkenyl or
both R.sub.2 's taken together and with the nitrogen atom to which they are attached are morpholinium, piperidinium or pyrrolidinium, and
each A.sup..crclbar. is independently a non-chromophoric anion, with the proviso that the recurring units are linked in such a way that a K.sub.1 of one unit is linked to an R.sub.2 -bearing nitrogen atom of another unit.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/670,629Filed 13 Nov 1984 · continuation in part
Priority: DE 324172811 Nov 1982
Granted: 23 Jun 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

C09B 69/106
Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds: containing an azo dye
C09B 44/02
Azo dyes containing onium groups: containing ammonium groups not directly attached to an azo group
D06P 1/08
Not containing metal: cationic azo dyes
D21H 21/28
Characterised by function or properties in or on the paper: colorants ; Pigments or opacifying agents