Process for extruding ethylene polymers

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion

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526125, 526352, B28B 320

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active

043437559

ABSTRACT:
A process comprising forming an extrudate, preferably in the form of a film, from an ethylene polymer which, in an extruder, melts rapidly and experiences slow shear thinning by melt extruding said polymer through an extruder having an extrusion screw therein with a length to diameter ratio of between about 15:1 to 21:1.

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Modern Plastics Encyl. 1973-1974, Oct. 1973, p. 762.
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"Extruder Productivity: Big Gains in 5 Years", Plastics World, pp. 48-53; Jul. 1978.

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