Lurgi Zimmer Aktiengesellschaft

Zimmer Aktiengesellschaft

Werner Mrose

Werner Ude

Dietmar Wandel

Helmut Schwind

Heinz-Dieter Beeck

Wolfgang Janas

Joachim Cziollek

Ulrich Thiele

Thomas Gries

Rainer Tietze

Guenter Koschinek

Richard Prehler

Rolf Wagner

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

The invention relates to a spinning device in which liquid polymer is guided through a polymer line with a first heating jacket to a spinning pump with a second heating jacket. From said spinning pump, the polymer is transported through several lines to spinning packets and extruded through spinnerts to form filaments. The lines that are connected downstream of the spinning pump, the spinning packets and the spinnerets are located in at least one spinning housing through which heating fluid flows. There is a distance of 5 mm between the spinning housing through which the heating fluid flows and the first and second heating jackets and the spinning pump, to obtain thermal decoupling. According to a method for heating the spinning device, vaporous heating fluid is guided out of a first reservoir into the spinning housing, and heating fluid is guided out of a second reservoir into the first and/or second heating jacket. The temperature of the heating fluid that is supplied to the spinning housing is 10 to 40&deg; C. higher than the temperature of the heating fluid that is supplied to the first and/or second heating jacket.

Spinning device for spinning molten polymers and method for heating the spinning device

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

The invention provides a reheater door of a spinning device, which door is constructed so as to facilitate relatively easy access to the spinning nozzle plate as well as enable suction removal of vaporizable compounds and prevention of substantial cooling even when the door is open.

Reheater door of a spinning device

A process for the improvement of the drawing ability of polyester, pellets of which are thermally post-treated in the solid phase in an inert atmosphere, containing a precise concentration of water vapor. The water vapor concentration is equal to the amount of water, plus 15%/minus 50%, which could theoretically be formed, at the polyester end viscosity, from the --COOH end groups and the excess --OH end groups of the polyester. An equimolar quantity of the vapor of the alkanediol, which serves as the diol reactant for the polyester, may be substituted for all or part of the water vapor.

Process for improving the drawing ability of polyester

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Maintal, Germany

Werner Mrose