Table 1.

Extrusion parameters and temperatures for hot melt extrusion (S: solid plasticizer; L: liquid plasticizer).

Formulation	Feed Rate (GF) [kg/h]	Feed Rate (SP) [kg/h]	Zone 1 [°C]	Zone 2 [°C]	Zone 3 [°C]	Zone 4 [°C]	Zone 5 [°C]	Zone 6 [°C]	Zone 7 [°C]	Die [°C]
PVA 4-88 (S)	0.2	-	80	150	200	200	200	200	200	210
PVA 4-88 (L)	0.18	0.02	80	150	200	200	200	200	200	210
PVA 3-82 (S)	0.2	-	80	150	190	190	190	190	190	190
PVA 3-82 (L)	0.18	0.02	80	150	190	190	190	190	190	190