Permanently coloured aromatic co-polyamides - contg. colour-forming diamines, esp. anthraquinones, for fibres

High-mol. wt. co-polyamides with relative viscosity 1.3-3 (1.4-2.2) (at 20 degrees C as a 0.5% soln. in conc. H2SO4) contain (1) 0.1-15 (0.5-8) moles % of units of formula -HN-A-NH- OC-Ar-CO-, where a is the divalent residue of a colouring diamine and Ar is the divalent residue of an aromatic dicarb...

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Bibliographische Detailangaben
Hauptverfasser:	WOLF, GERHARD-DIETER, NISCHK, GUENTHER, MIESSEN, RALF
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	High-mol. wt. co-polyamides with relative viscosity 1.3-3 (1.4-2.2) (at 20 degrees C as a 0.5% soln. in conc. H2SO4) contain (1) 0.1-15 (0.5-8) moles % of units of formula -HN-A-NH- OC-Ar-CO-, where a is the divalent residue of a colouring diamine and Ar is the divalent residue of an aromatic dicarboxylic acid, and (2) 85-99.8 moles % of units of formula -HN-B-NH-OC-Ar-CO-, where B is the divalent residue of is not 1 aromatic or heterocyclic diamine. The colour is built into the polymer and is fast to light, washing and migration. The properties of the polyamide are not affected by the small amt. of the coloured co-diamine. The pollution problems of vat and carrier dyeing processes are avoided.