Patent ID: 11904056
Assignee: EVONIK OPERATIONS GMBH
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 9:
10. A process for preparing a capsule shell according to claim 1, the process comprising:
a) providing the core-shell polymer in the form of an aqueous polymer dispersion A,
b) providing the cellulose in the form of an aqueous polymer dispersion B,
c) mixing the polymer dispersion A and the polymer dispersion B into a mixed aqueous polymer dispersion,
d) dipping a moulding pin, that has an inner complementary form of the capsule shell at its end, with this end into the mixed polymer dispersion,
e) withdrawing the moulding pin from the mixed polymer dispersion and drying a polymer dispersion on the moulding pin to form a film, which has the form of the capsule shell, and
f) removing the capsule shell from the moulding pin.