Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1988-12-05
1991-07-23
Hornsby, Harvey C.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 90, B01F 708, B29B 714
Patent
active
050338609
ABSTRACT:
This invention relates to a rotary kneading screw installed in an extruder kneading and extrusion-molding a material mixture of a synthetic resin such as polyester resin mixed with one or more of master-batch, calcium carbonate, talc and carbon fiber. Progressively higher pressures are applied to the material mixture passing through a kneading section defined in the rotary screw. This rotary kneading screw is thus capable of kneading and extruding the material mixture in a large amount without deteriorating its physical properties and without lowering fluidity and molecular weight thereof even where the material mixture is difficult to knead.
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Haugland Scott J.
Hornsby Harvey C.
Kojima Moonray
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