Multilayer plastic pipe

Details Multilayer plastic pipe Multilayer plastic pipe

B - Operations, Transporting

32

B

B32B 1/08 (2006.01) B32B 27/08 (2006.01) F16L 9/12 (2006.01)

Patent

CA 2145254

A multilayer plastic pipe comprising polyamide and polyvinylidene fluoride and having adhesion between the layers and improved resistance to chemical agents such as, for example, methanol-containing fuels is provided. The typical use properties of polyamide and polyvinyl- idene fluoride are not to be impaired by the measures required for achieving adhesion between the layers. This is achieved by means of multilayer plastic pipes consisting at least of I. a layer based on a moulding composition of poly- amide, and II. a layer adjacent to layer I and based on a moulding composition comprising a mixture of a) from 97.5 to 50% by weight of polyvinylidene fluoride and b) from 2.5 to 50% by weight of an acrylate co- polymer, with the layers adhering to one another. By means of the invention it is possible to obtain multilayer plastic pipes having the desired improved property profile.

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