Bayer Aktiengesellschaft

Faserwerke Huls Gesellschaft MIT Beschrankter Haftung

Herbert Pelousek

Armin Kohler

Karl-Heinz Magosch

Helmut Ohse

Hans Westermann

Ludwig Bottenbruch

Rudolf Binsack

Harry Kubitzek

Peter Hoffmann

Ekkehard Frohberg

Alfred Horbach

Wolfgang Liedtke

Eduard Specht

Manfred Salamon

Hans J Hagebaum

Klaus-Jurgen Schreiber

Robert Boeck

The invention relates to polyester filaments and fibers and a process for the production of such polyester filaments and fibers which can be dyed in the absence of a carrier which comprises introducing into the polymer to be spun a silicate charged with an inert gas melt, spinning the mixture obtained in known manner and further processing into filaments or fibers.

Process for the production of polyester fibers and filaments which can

A fiber filling of polyester fibres with greatly improved serviceability properties comprising a combination of fiber properties, namely denier range, staple length and number of crimp arcs, a specific polysiloxane brightening and an antistatic agent.

Fibre filling of polyester fibres

The invention relates to a process for the production of a high molecular weight polyester, which comprises reacting a dicarboxylic acid or derivative thereof with a diol in the presence of a combination of compounds of manganese, magnesium, titanium and antimony as a catalyst.

Process for the production of high molecular weight polyesters

This invention relates to a process for the production of a high molecular weight polyester by reacting a dicarboxylic acid or a derivative thereof with a diol in the presence of a catalyst comprising a combination of compounds of manganese, magnesium and titanium.

Filaments and fibers having improved dyeability comprising a terephthalic acid copolyester containing bis ethoxylated tetramethylbisphenol A in cocondensed form.

Filaments and fibers having improved dyeability prepared from bis

The invention relates to the production of yarns with individual filaments broken in a purely random sequence. This object is achieved by initially interlacing the uniform filament yarns either during spinning and before winding or between the winding bobbin and the drawing zone and subsequently subjecting parts of the outer layers of the interlaced filament strand to brief heat treatment on a contact heater before stretching.

Process for the production of filament yarns with statistically

Low-molecular polyesters prepared by the condensation of diols and dicarboxylic acid dialkyl esters show a substantially improved capactiy to undergo polycondensation in a susequent polycondensation below the melting point if said low-molecular polyesters are prepared from pressure trans-esterification products by polycondensation in the melt.

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Dormagen, Germany

Herbert Pelousek