Hypromellose phthalate is a good gut-soluble film coating material. It is mainly used as tablets, granules and other intestinal coating materials and controlled skeleton materials.
Technical Parameters:
|
ITEMS |
GRADE |
|
|
HP55 |
HP55S |
|
|
Methoxy，% |
18.0-22.0 |
|
|
Hydroxypropoxy，% |
5.0-9.0 |
|
|
Phthaloyl group，% |
27.0-35.0 |
|
|
Viscosity（mpa.s,10%，solu,20±0.1℃） |
32-48 |
136-204 |
| Loss on drying，% |
≤5.0 |
|
|
Residue on ignition，% |
≤0.20 |
|
|
Chloride，% |
≤0.07 |
|
|
Heavy metals，ppm |
≤10 |
|