Process for the production of silicone rubber pellets

Details Process for the production of silicone rubber pellets Process for the production of silicone rubber pellets

1977-06-27

1979-10-30

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating with particulate material

264148, B28B 1106

Patent

active

041728718

ABSTRACT:
Silicone rubber pellets are made by extruding a silicone rubber composition through a die to produce one or more strands, passing the strands into a chamber containing a dust cloud of a dry particulate agent for preventing silicone rubber pellets from adhering to one another and comminuting the strands into pellets. Preferred silicone rubber pellets comprising cylindrical shapes of 1/8 to 1/4 inch in diameter and from 1/8 to 1/2 inch in length, and uniformly coated with the dry particulate agent, e.g., mica, talc or diatomaceous earth, are uniquely adapted to feeding extruders.

REFERENCES:
patent: 3012900 (1961-12-01), Heinmann et al.
patent: 3340228 (1967-09-01), Wu
patent: 3634570 (1972-01-01), Himerleich et al.

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