Method for extruding molten narrow molecular weight...

Details Method for extruding molten narrow molecular weight... Method for extruding molten narrow molecular weight...

B - Operations, Transporting

29

C

18/800

B29C 47/60 (2006.01) B29C 47/00 (2006.01)

Patent

CA 1168414

12827 METHOD FOR EXTRUDING MOLTEN NARROW MOLECULAR WEIGHT DISTRIBUTION, LINEAR, ETHYLENE COPOLYMERS ABSTRACT OF THE DISCLOSURE A method for extruding granular low density narrow molecular weight distribution linear ethylene polymers which comprises passing said granular polymers into an extrusion apparatus including an extruder screw, said extruder screw having a feed section wherein said polymers are introduced and thence passed through a transition section and a metering section, wherein each lead in the feed section is substantially the same and each lead in the metering section is substantially the same and wherein each lead in the feed section is 5 to 50 percent greater than each lead in the metering section. S P E C I F I C A T I O N

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