Apparatus for plasticizing material such as rubber, synthetic pl

Details Apparatus for plasticizing material such as rubber, synthetic pl Apparatus for plasticizing material such as rubber, synthetic pl

1974-11-11

1976-11-23

Roberts, Edward L.

Plastic article or earthenware shaping or treating: apparatus

Projection

259195, 425201, B29B 110

Patent

active

039932915

ABSTRACT:
An apparatus for plasticizing material such as rubber, synthetics plastics and like plasticizable compositions comprising feeding material between two spaced apart surfaces, preferably rollers, at least one of which is rotatingly propelled, the surfaces being so shaped and relatively disposed that the material is repeatedly subjected to varying pressure, varying down to zero at times, and thus more intensive, less intensive and virtually no shearing work. Where the surfaces are on rollers the rollers are preferably formed with helical grooves, the rollers being rotated in the same or opposite directions.

REFERENCES:
patent: 2537395 (1951-01-01), Brown
patent: 2674104 (1954-04-01), Street
patent: 3197147 (1965-07-01), Krohne
patent: 3802670 (1974-04-01), Okada
patent: 3856278 (1974-12-01), Eisenmann

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