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US 5,844,015 AGranted
Process and device for continuous production of polyurethane block foam
AssigneeMaschinenfabrik Hennecke GmbH
InventorsHerbert Steilen, Reiner Raffel, Robert Eiben, Wilfried Ebeling
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Abstract
A process and a device are described for the production of polyurethane foam by application of a froth onto the conveyor belt of a block-foam installation, whereby the froth is applied onto the lower conveyor belt in a free, substantially vertical fall and flowing of the froth contrary to the direction of movement of the conveyor belt is prevented by a stationary, substantially vertical barrier arranged transversely on the conveyor belt.
Claims2
A process for the production of polyurethane foam comprising the following steps:
- (a) applying froth onto a conveyor belt of a block-foam installation characterized in that said froth is in a free, substantially vertical fall;
- (b) arranging a substantially vertical barrier transversely on said conveyor belt at an angle of less than 20.degree. to prevent the flowing of said froth contrary to the direction of movement of said conveyor belt.
Dependencies are inferred from the claim text.