Plastic pipe having a plurality of layers

• Main Authors: MUEGGE, JOACHIM, HERRMANN, HANS-DIETER, RIES, HANS, OHM, HUBERTUS
• Format: Patent
• Language: English; French; German
• Published: 21.10.1992
• Subjects: BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

Es sollen Kunststoffrohre mit verbesserter Beständigkeit gegen chemische Agenzien und verbesserten mechanischen Eigenschaften zur Verfügung gestellt werden. Dies wird durch ein mehrschichtiges Kunststoffrohr bestehend aus einer Innen- und Außenschicht auf Basis von Polyamid erreicht, wobei Innen- und Außenschicht durch mindestens eine Zwischenschicht aus einem Gemisch eines linearen kristallinen Polyesters und eines Polyamids kraftschlüssig miteinander verbunden sind. Mit Hilfe der Erfindung gelingt es, Kunststoffrohre mit dem gewünschten verbesserten Eigenschaftsbild zu erhalten. 2.1 Plastic pipes having improved resistance to chemical agents and improved mechanical properties are to be made available. 2.2 This is achieved by means of a multi-layer plastic pipe consisting of an inner and outer layer based on polyamide, inner and outer layer being connected together in an adhesive manner by means of at least one intermediate layer of a blend of a linear crystalline polyester and a polyamide. 2.3 With the aid of the invention it is possible to obtain plastic pipes with the required improved range of properties.