Multicomponent continuous film die

Details Multicomponent continuous film die Multicomponent continuous film die

B - Operations, Transporting

29

C

18/739

B29C 47/06 (2006.01) B29C 47/04 (2006.01) B29C 47/58 (2006.01)

Patent

CA 1190369

ABSTRACT OF THE DISCLOSURE An elongated flat die, for extruding parallel streams of different polymers to form a continuous, striped film, includes a body member which houses a replaceable insert. The insert is formed with grooves on at least two abutting surfaces, which, together with the interior sur- faces of the body member, define separate, alternating passages through which the polymers flow. Streams of the different polymers flow together in alternating arrangement and exit the die through a variable lip passage.

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