Method and apparatus for manufacturing coextruded products

Details Method and apparatus for manufacturing coextruded products Method and apparatus for manufacturing coextruded products

B - Operations, Transporting

29

C

B29C 47/06 (2006.01) A21C 3/08 (2006.01) A21C 11/16 (2006.01) A23P 1/12 (2006.01) B29C 47/04 (2006.01) B29C 47/24 (2006.01)

Patent

CA 2115666

A method for manufacturing coextruded products by coextruding continuous strands of one extrudable material and enve- loping sheaths and twisting these sheathed strands about each other for at least part of a full revolution. An apparatus for manu- facturing such products comprises a multiplicity of nozzles each having a central bore with feeding means and an annular open- ing surrounding this bore having separte feeding means, which nozzles are arranged for mutual movement comprising at least part of a rotation.

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