Continuous production of polymeric foam

Details Continuous production of polymeric foam Continuous production of polymeric foam

1974-06-12

1976-06-22

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264 51, 425817R, B29C 1100, B29D 2704

Patent

active

039652289

ABSTRACT:
This invention relates to the production of continuous lengths of polymeric foam by depositing a foam mix in a moving open topped trough shaped conveyor by which it is conveyed and in which the mix foams freely and in the region when foaming takes place, contacting each side surface of the rising foam with an upwardly moving surface, preferably a system of upwardly moving wires interposed between each side surface of the rising foam and its adjacent side wall of the trough conveyor, the speed and direction of travel of the system of wires being selected so that the foam emerging from the foaming region has a flat upper surface.

REFERENCES:
patent: 220907 (1879-10-01), Arbogast
patent: 1804395 (1931-05-01), Blenko
patent: 3091811 (1963-06-01), Hackert
patent: 3719734 (1973-03-01), Petzetakis

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