Table 3: Coating formulations.

ComponentsQuantity

CA 398-34.5 g
PEG-60001.35 g
Acetone*95.0 mL
Diethyl-o-phthalate1.0 mL
Water*5.0 mL

Total100.0 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.