Method for producing a pipe lined with an inner liner

US11204111B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Fábio Gosi de Aquino · Düsseldorf, DE
• Markus Hartmann · Neustadt, DE
• Daniel Demicoli · Essen, DE
• Rainer Göring · Borken, DE
• Hermann van Laak · Hünxe, DE
• Horst Beyer · Basel, CH
• Lan Li · Shanghai, CN

Key dates

• Filing date: Oct 24, 2018
• Grant date: Dec 21, 2021
• Expiry date: Oct 24, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L55/1652
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

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.