Process and apparatus for molding elastomers

Details Process and apparatus for molding elastomers Process and apparatus for molding elastomers

1978-08-21

1981-01-20

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264176R, 425207, 26432817, B29F 102

Patent

active

042462240

ABSTRACT:
A process for the production of compact, shaped articles from vulcanizable rubber mixtures in powder form by means of a screw plasticizing unit, wherein the powder-form rubber mixture is first introduced through a delivery-active feed pocket into the extruder, subsequently plasticized in a mixing zone, compacted by combining the plasticized rubber particles and subsequently shaped in plasticized and homogenized form, and an apparatus for carrying out the above process.

REFERENCES:
patent: 3953006 (1976-04-01), Patarcity
patent: 4025274 (1977-05-01), Uemura
patent: 4117073 (1978-09-01), Koch

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