Co-extruded multilayer plastic pipe, method for producing...

Details Co-extruded multilayer plastic pipe, method for producing... Co-extruded multilayer plastic pipe, method for producing...

F - Mech Eng,Light,Heat,Weapons

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F16L 9/12 (2006.01) B29B 15/12 (2006.01) B29C 44/22 (2006.01) B29C 47/00 (2006.01) B29C 47/02 (2006.01) B29C 47/06 (2006.01) B29C 47/12 (2006.01) B29C 47/20 (2006.01) B29C 47/24 (2006.01) B29C 47/52 (2006.01) B29C 47/76 (2006.01) B29C 47/90 (2006.01) B29C 55/24 (2006.01) B32B 1/08 (2006.01) B32B 5/20 (2006.01) F16L 59/14 (2006.01) B29C 53/58 (2006.01)

Patent

CA 2239870

The invention relates to a co-extruded multilayer plastic pipe comprising an inner pipe (1) and an outer pipe (2) and between them a middle layer (3) of a softer material than the inner pipe. The invention also relates to a method for producing a co-extruded multilayer pipe in a multilayer extruder, and an apparatus for producing a co-extruded multilayer pipe.

L'invention concerne un tuyau plastique multicouche coextrudé, comprenant un tuyau intérieur (1) et un tuyau extérieur (2) séparés par une couche intermédiaire (3) constituée d'un matériau plus mou que le tuyau intérieur. L'invention concerne également un procédé permettant de fabriquer un tuyau multicouche coextrudé dans une extrudeuse multicouche, ainsi qu'un dispositif permettant de fabriquer ce type de tuyau.

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