Multilayer plastic pipe having good adhesion between layers

Details Multilayer plastic pipe having good adhesion between layers Multilayer plastic pipe having good adhesion between layers

B - Operations, Transporting

32

B

B32B 1/08 (2006.01) B32B 7/10 (2006.01) B32B 27/08 (2006.01) C08G 18/42 (2006.01) F16L 9/12 (2006.01)

Patent

CA 2149856

A plastic material, for example a piper based on polyolefins is to be provided, which pipe, compared with single- layer pipes of polyolefins, has an improved barrier action against (petro)chemical materials, in particular against methanol-containing fuels. This is achieved by a multilayer plastic pipe which comprises the following layers I. at least one layer based on a polyolefin, II. at least one layer based on a thermoplastic polyester, bonded via III. a layer between them of a suitable coupling agent which contains reactive groups, with adjacent layers being cohesively bonded to one another. The invention makes it possible to obtain plastic pipes having the desired improved property profile.

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