Apparatus for additive feeding

Details Apparatus for additive feeding Apparatus for additive feeding

1976-12-21

1979-05-22

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 88, 366 89, 366146, 366156, 366323, 425208, B29B 106

Patent

active

041556550

ABSTRACT:
A method and apparatus for feeding an additive, such as glass fibers, fillers, etc., to a plastic resin in an extruder is disclosed. The additive is fed by means of a screw type feeder into the barrel of a plastics extruder or reciprocating screw plastifier at a location where the resin is molten and the resin pressure is low.

REFERENCES:
patent: 3035306 (1962-05-01), Rossiter
patent: 3746315 (1973-07-01), Rizzi
patent: 3860220 (1975-01-01), Matsubayashi
patent: 3868093 (1975-02-01), Sokolow
patent: 3985348 (1976-10-01), Skidmore

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