Thermoplastic multilayer composites

Details Thermoplastic multilayer composites Thermoplastic multilayer composites

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 1/08 (2006.01) B32B 27/34 (2006.01) C08L 27/16 (2006.01) F16L 11/04 (2006.01) F16L 11/20 (2006.01) C08L 33/24 (2006.01)

Patent

CA 2114517

ABSTRACT A thermoplastic multilayer composite is disclosed. The composite comprises at least one layer based on a moulding compound of polyamide and at least one layer based on a moulding compound comprising a mixture of polyvinylidene fluoride and polyglutarimide. The layers are adhesively bonded to one another. The multilayer composite of the invention has an outstanding resistance to and barrier action against diffusion of chemicals, solvents and fuels. Since the layers are adhesively bonded to one another, no delamination of the layers occurs on thermal expansion or flexing of the finished part. The composite can be used in structural parts, particularly in electrical, engineering and automobile industries, where the barrier action of polyvinyl- idene fluoride is to be combined with the good mechanical properties of polyamide.

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