Basf Aktiengesellschaft

Honeywell International Inc.

Basf Corporation

Ulrike Breiner

Harry Y Hu

Dean R Gadoury

Bernd-Steffen Von Bernstorff

Gerhard Conzelmann

Theodore G Karageorgiou

Paul-Michael Bever

Manfred Julius

Otto M Ilg

Axel Wilms

Robert Weiss

Rainer Neuberg

Manfred Juluis

Inherently light- and heat-stabilized polyamides with improved wet fastness

A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.

Polyamide

A modified polyamide polymer having a high amino end group content, with more than 30 percent of the amino end groups being secondary or tertiary amine, dramatically improves the dye bleed performance. The modified polyamide may be prepared by polymerization of polyamide-forming monomers in the presence of a carboxylic acid and a hindered piperidine derivative in amounts sufficient to achieve the high amino end group content.

Process for preparing wetfast polyamide fibers

Polyamides

Wetfast polyamide fiber with high amino end group content

An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.

Inherently light-and-heat-stabilized polyamide and method of making the

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Bürstadt, Germany

Ulrike Breiner