Method for the continuous manufacture of plastic foam

Details Method for the continuous manufacture of plastic foam Method for the continuous manufacture of plastic foam

1998-11-04

2000-02-29

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 462, 264 465, 264257, 264258, 264273, B29C 4424

Patent

active

060305592

ABSTRACT:
A method for continuously manufacturing a plastic foam reinforced by at least one fibrous material comprising continuously conveying a carrier along a production line, supplying on top of the carrier a foam-forming mixture and at least one continuously moving fibrous material, the fibrous material being non-expansible and having holes penetrable by the mixture, the mixture being supplied above both the fibrous material and the carrier or below the fibrous material and between the fibrous material and the carrier, passing the carrier, mixture and fibrous material between two spaced opposed constricting members which lie one above the other and form therebetween a metering gap for distributing the mixture over the carrier and fibrous material, and allowing the mixture after passing through the gap to freely expand and penetrate the holes of the fibrous material to form a reinforced plastic foam which has an exceptionally flat surface.

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