B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/06 (2006.01) B29C 47/20 (2006.01)
Patent
CA 2541650
The present invention is a module used in a modular blown film co-extrusion die for extruding multi layer polymer materials in a tubular form. The module including an upper pancake section including an upper melt entry port and melt channels defined in one face thereof, wherein the melt channels communicating fluidly with the upper melt entry port and a lower pancake section including a lower melt entry port and melt channels defined in one face thereof, wherein the melt channels communicating fluidly with the lower melt entry port. The melt channels of the upper and lower pancake sections facing each other and separated by a divider plate, such that the upper pancake section together with one side of the divider plate defining a top melt path and the lower pancake section together with the other side of the divider plate defining a bottom melt path, wherein the top melt path producing a top melt layer and the bottom melt path producing a bottom melt layer.
Castillo Rafael
Koch Mark Arthur
LandOfFree
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