Multilayer plastic pipe

Details Multilayer plastic pipe Multilayer plastic pipe

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 27/34 (2006.01) F16L 9/12 (2006.01) F16L 9/133 (2006.01)

Patent

CA 2082548

A multilayer plastic pipe consisting of an inner and outer layer based on a polyamide, the inner and outer layer being intimately bonded to one another by at least one intermediate layer of a moulding composition based on a mixture of 95 to 60% by weight of a linear, crystalline polyester and 5 to 40% by weight of a polymer containing reactive groups other than epoxy groups. At least 50% of the end groups of the polyamide are amino end groups. The pipes have a good mechanical resistance and a good barrier action against diffusion of chemical agents, solvents and fuels. Due to the intimate bonding of the layers, no shear- ing or delamination of the various layers occur during thermal expansion or bending of the pipe.

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