Table 3:
Coating formulations.
Components
Quantity
CA 398-3
4.5 g
PEG-6000
1.35 g
Acetone*
95.0 mL
Diethyl-o-phthalate
1.0 mL
Water*
5.0 mL
Total
100.0 mL
*Major part of the acetone had been removed during coating. And the residual solvent acetone and water at 40°C for 24 h could be removed after coating.