| 摘要 |
PROBLEM TO BE SOLVED: To continuously and stably over a long time produce a polyurethane sheet by applying a two-component reaction type thermosetting polyurethane raw material continuously and stably over a long time on a base material. SOLUTION: The mixed two-component reaction type thermosetting polyurethane raw material is discharged on the upper surface of the base material 1 traveling horizontally by a mixing head 3. The discharged raw material, while being held between a release sheet 2 supplied from above and the base material 1, is passed between coating rollers 6a and 6b to be constant in thickness and further through an auxiliary heating furnace 9 and a curing heating furnace 10 to be cured. After that, the release sheet 2 is peeled off, and the polyurethane sheet 15 obtained by the peeling of the release sheet 2 is taken up by a polyurethane sheet winding machine 14. |
