Process and apparatus for the continuous production of slabstock foam
AssigneeHennecke GmbH
InventorsHans-Michael Sulzbach, Lothar Rohrig, Reiner Raffel
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Abstract
Slabstock foam free of cavities can be produced without any restriction, i.e. also from rapidly reacting chemical systems, by introducing the liquid reaction mixture from underneath, in front of, and/or through an optionally swivellable floor plate, wherein the floor plate and the inlet for introducing the liquid reaction mixture is arranged in a manner such that the reaction mixture above the floor plate is substantially still liquid.
Claims15
A process for the continuous production of slabstock foam comprising:
- (1) feeding a liquid reaction mixture onto a floor plate, wherein said liquid reaction mixture is discharged from underneath, in front of, and/or through the floor plate, and the reaction mixture is substantially still in the liquid state above the floor plate;
- (2) distributing said liquid reaction mixture transversely across the floor plate;
- and
- (3) allowing said liquid reaction mixture to cream and foam;
- thereby forming an expanded slabstock foam.
An apparatus for the continuous production of slabstock foam from a liquid reaction mixture, comprising:
- (a) a floor plate,
- (b) a mixer for preparing a foam forming liquid reaction mixture,
- (c) an inlet for feeding the liquid reaction mixture from said mixer to said floor plate,
- (d) a transporting system for moving a liner in the conveying direction, said transporting system being located downstream from said floor plate,
- (e) lateral boundaries attached to said transporting system in the conveying direction,
- wherein said inlet for feeding the liquid reaction mixture discharges the liquid reaction mixture from underneath, in front of, or through said floor plate, with said inlet and said floor plate being arranged such that the reaction mixture above the floor plate is still substantially liquid.
Dependencies are inferred from the claim text.