Multilayer plastic pipe with good layer adhesion

Details Multilayer plastic pipe with good layer adhesion Multilayer plastic pipe with good layer adhesion

B - Operations, Transporting

32

B

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

Patent

CA 2331519

A multilayer plastic pipe which comprises the following layers: I. at least one layer of a polyolefin molding composition, II. at least one layer of a polyester molding composition comprising one or more compounds selected from a) a compound having two or more carbodiimide groups, b) a compound having two or more carboxylic anhydride groups, c) a compound having two or more maleimide groups, d) a compound having two or more oxazine groups, and III. at least one layer of an adhesion promoter containing reactive groups which is located between I and II, has strong layer bonding.

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