Coextrusion die

Details Coextrusion die Coextrusion die

B - Operations, Transporting

29

C

18/739

B29C 47/06 (2006.01) B29C 47/20 (2006.01)

Patent

CA 1185761

Abstract of the Disclosure A coextrusion die for the extrusion of plastics materials in the shape of a tubular film comprising supply means for separately supplying at least two plastics materials to said die, a distribution channel system connected to each supply means, each distribution channel system comprising at least two arched channels provided in different axial planes, the ends of each arched channel being connect- ed to the middle portion of the following arched channel and the distribution channel systems being located at different distances from the centre axis of the die, collecting chambers communicating with said distribution channel systems and an annular extrusion slot com- municating with the collecting chambers. -11-

371885

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