Contitech Techno-chemie Gmbh

Contitech Kuehner Gmbh & Cie Kg

Contitech Mgw Gmbh

Michael Sont

Ligia Ludwig

Ute Kehr

Alexandra Brandt

Uwe Seebold

A hose which has at least the following plies in the following order: an innermost layer (A) which is based on thermoplastic material or thermoplastic elastomer material; an internal layer (A) which is applied to the innermost layer (A) and which is based on elastomer material; at least one reinforcing element ply (B, B, B), wherein the reinforcing element is arranged at an angle smaller than the neutral angle of 54.7°, and possibly an external layer (C) which is based on polymer material. The hose is suitable in particular as a pressure carrier hose for refrigerant lines, in particular for CO, for use as a pressure carrier of corrugated pipes.

Hose, specifically for refrigerant applications

A hose having a low permeation rate, in particular a hose for a high temperature coolant, having at least the following layer configuration: a barrier layer in the form of monofilm or multilayer film made of a polymer material; an inner layer that is placed on top of the barrier layer and is made of a polymer material having elastic properties; a reinforcement supported by the inner layer made of threadlike material, and an outer layer made of a polymer material having elastic properties, which protects against external influences. The reinforcement features a spiraled shape, specifically by forming at least two spiraled layers, wherein the area between two spiraled layers is free of an intermediate layer of a polymer material. In addition, the area between two spiraled layers is in particular free of a bonding agent. Further a method for producing such a hose is disclosed.

Hose having a low permeation rate, in particular a hose for a high temperature coolant, and method for producing same

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Horneburg, Germany

Michael Sont