Zimmer Aktiengesellschaft

Lurgi Zimmer Aktiengesellschaft

Degussa Aktiengesellschaft

Evonik Rohm Gmbh

Wolfgang Janas

Ulrich Thiele

Sven Balk

Helmut Schwind

Werner Ude

Dietmar Wandel

Joachim Cziollek

Heinz-Dieter Schumann

Dirk Poppe

Werner Mrose

Klaus Dorn

Bruno Keller

Alexander Klein

Frank Kleinsteinberg

Peter Kempf

Bernd Kretschmann

Ingo Cordes

Elke Seipel

Anja Christofzik

Cornelia Borgmann

HMLS-fibers made of polyester and a spin-stretch process for its production

The present invention relates to a method for the manufacture of synthetic fibers from a melt mixture of fiber forming matrix polymers, wherein at least one second amorphous additive polymer, which is immiscible with the fiber forming matrix polymer, is added to the fiber forming matrix polymers in a quantity of 0.05-5 wt % (with reference to the total weight of fiber forming matrix polymer and the additive copolymer). The additive polymer is obtained by multiple initiation. Furthermore, the present invention also relates to the synthetic fibers produced by the method.

Method for the manufacture of synthetic fibers from a melt mixture based on fiber forming polymers

High strength polyester fibers comprising from 0.1 to 2.0 by weight of an incompatible, thermoplastic amorphous, polymeric additive.

High-strength polyester threads and method for producing the same

Polyester-staple fibres and method for the production thereof

Process for the production of preoriented filaments from polyester-based polymer mixtures by spinning the polymer mixtures with a draw-off speed v of at least 2500 m/min, a second amorphous, thermoplastically processable copolymer having a glass transition temperature of more than 100.degree. C. being added to the polyester, wherein the ratio of the melt viscosity of the copolymer to the melt viscosity of the polyester is 1:1 to 10:1, in that the amount of copolymer added to the polyester is at least 0.05 wt. %, in that the maximum amount M of the copolymer added to the polyester depends on the draw-off speed v, and in that ##EQU1##

Process for processing polymer mixtures to filaments

Growing community of inventors

Geiselbach, Germany

Wolfgang Janas