Method for additive feeding

Details Method for additive feeding Method for additive feeding

1975-02-10

1977-02-01

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264349, D01F 102

Patent

active

040062090

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: 3121914 (1964-02-01), Olson et al.
patent: 3151192 (1964-09-01), Jacobs et al.
patent: 3453356 (1969-07-01), Kent, Jr. et al.
patent: 3584095 (1971-06-01), Heider et al.
patent: 3664790 (1972-05-01), Hollander

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