Evonik Operations Gmbh

Lan De Gans Li

Markus Hartmann

Horst Beyer

Daniel Demicoli

Hermann Van Laak

Rainer Göring

Martin Wielpütz

Fábio Gosi De Aquino

Dirk Heinrich Bücker

Stretched filaments based on aromatic polyethers, wherein the filaments have been stretched at a temperature between glass transition temperature and melting point and wherein the filaments are cooled down to below the glass transition temperature under full tensile load and a process for production thereof and use thereof.

Stretched aromatic polyethers

A pipe, the inner surface of which is lined with a thermoplastic layer, is produced by a process comprising the following steps: Relative movements between the metal pipe and inliner are thereby prevented; the inliner also has high safety against collapse. The pipe is used to produce a routed pipeline.

Method for producing a pipe lined with an inner liner

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Mülheim an der Ruhr, Germany

Lan De Gans Li