Huels Aktiengesellschaft

Degussa-Huels Aktiengesellschaft

Hans-Dieter Herrmann

Hans Ries

Stefan Rober

Hans Jadamus

Roland Feinauer

Joachim Mugge

Michael Boer

Stefan Roeber

Hubertus Ohm

Multilayer plastic pipe having good adhesion between layers

A plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties, comprising at least:

Multilayer plastic pipe

The present invention relates to a plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties, comprising.

Multilayer plastic pipes comprising a polyamide-based inner and outer layer, wherein the inner and outer layer are connected force-lockingly by means of at least one intermediate layer made of a mixture of a linear crystalline polyester and a polyamide, have improved stability to chemical agents and improved mechanical properties.

A plastic pipe having improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties comprising:

Multilayer plastic pipe comprising at least one outer layer based on polyamide and at least one layer of a linear, crystalline polyester modified by means of an isocyanate mixture exhibits improved resistance, inter alia, to methanol-containing fuels and improved mechanical properties.

A multilayer plastic pipe having improved barrier action against diffusion of the substance being transported, particularly methanol-containing fuels, dimensional stability, resistance to mechanical stress, and particularly improved adhesion between layers is provided comprising:

A plastic pipe having improved resistance to methanol-containing fuels and improved mechanical properties is provided. This is achieved by a multilayer plastic pipe consisting of at least one outer layer based on polyamide and at least one layer of a linear, crystalline polyester modified with isocyanates. With the aid of the invention it is possible to obtain plastic pipes having improved barrier properties against methanol-containing fuels and dimensional stability and mechanical load-bearing capacity.

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Marl, Germany

Hans-Dieter Herrmann