THREAD-FORMING, CHAIN-BRANCHED POLYESTERS AND COPOLYESTERS

The invention relates to thread-forming, chain-branched polyesters and copolyesters with relative molecular weight of > 10,000 obtained by condensing 50-500 ppm of one or several chain-branching agents of general formula (I) which have been added during the production of said polyesters, wherein...

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Bibliographische Detailangaben
Hauptverfasser:	ZENGEL, HANS, GEORG, SCHILO, DIEDERICH, SEIDEL, ULF, DE JONG, CEES, HUETHER, HANS, GEORG, GUSTAV, BERNHARD, VIETH, CHRISTIAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to thread-forming, chain-branched polyesters and copolyesters with relative molecular weight of > 10,000 obtained by condensing 50-500 ppm of one or several chain-branching agents of general formula (I) which have been added during the production of said polyesters, wherein n = 2-4, i.e. di-, tri or tetrapentaerythrite, in the polyester-forming initial constituents. The inventive polyesters and copolyesters are particularly suited for rapid spinning of textile and industrial threads with winding speeds of 2,500-10,000 m/min, which is followed by the usual stretching procedures or texturing processes.