Process for the continuous production of foam plastic blocks hav

Details Process for the continuous production of foam plastic blocks hav Process for the continuous production of foam plastic blocks hav

1977-11-09

1979-04-17

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 39, 264 458, 264 462, 264 51, 264331, 264DIG84, B29D 2704

Patent

active

041500750

ABSTRACT:
Continuous foam blocks with rectangular cross-section are produced on a side-limited conveyor band by feeding a foamable mixture to a cover foil travelling with said conveyor band and covering the free surface of the mixture with a bearing layer not earlier than immediately after the supply of the mixture and not later than before the zone in which a skin would be formed on the free surface of the block.

REFERENCES:
patent: 3240846 (1966-03-01), Voelker
patent: 3354503 (1967-11-01), Joseph et al.
patent: 3702274 (1972-11-01), Wooler
patent: 3984195 (1976-10-01), Del Carpio
patent: 4056595 (1977-11-01), Bokelmann

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