Patent ID: 11951511
Assignee: OLBRICH GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC B  D | IPC B

Claim 0:
1. A method for manufacturing a multilayer PVC semi-finished product, said method comprising:
forming a first layer by:
a. coating a coated or uncoated carrier web with a PVC plastisol, whereby a carrier web coated with an ungelled plastisol layer is obtained; thereafter
b. gelling the ungelled plastisol layer, whereby a carrier web coated with a gelled plastisol layer is obtained; and thereafter
c. cooling the carrier web coated with the gelled plastisol layer; and, thereafter;
forming multiple layers on the first layer by:
d. coating the first layer with a plurality of ungelled PVC plastisol layers, wet on wet, simultaneously or in immediate succession; thereafter
e. simultaneously gelling the plurality of ungelled plastisol layers; and thereafter
f. simultaneously cooling the plurality of gelled plastisol layers by transporting the carrier web through a cooling unit for cooling the gelled plastisol layers.