Heatable pipe

US10139022B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Ranier Goering · Borken, DE
• Jasmin Berger · Dortmund, DE
• Michael Boeer · Olfen, DE

Key dates

• Filing date: Mar 21, 2016
• Grant date: Nov 27, 2018
• Expiry date: May 30, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2214/03
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A heatable pipe contains a layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms, and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and a conductor for electrical current which is embedded between an electrically insulating outer layer and an electrically insulating inner layer. The heatable pipe exhibits a high heat distortion temperature, very good impact resistance and a high elongation at break and is used for producing an SCR conduit, a conduit for diesel fuel or a conduit for a fuel cell system.