Patent ID: 6030559
Filing Date: 2000-02-29
Classification: B29C

Abstract:
A method for the continuous manufacture of a plastic foam product 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, the fibrous material not being expansible under the influence of the expansion of the foam-forming mixture, to form a reinforced plastic foam which has an exceptionally flat surface.