Patent ID: 9655860
Date: 2017-05-23
CPC Classifications: A61J,A61K,C08L

Claim:
1. A process comprising: forming hydroxypropyl methyl cellulose hard capsules using thermogelation by: (a) providing an aqueous composition of a 2906 hydroxypropyl methyl cellulose having a methoxy content of 27.0-30.0% (w/w), a hydroxypropoxy content of 4.0-7.5% (w/w) and a viscosity of 3.5-6.0 cPs as a 2% weight solution in water at 20° C., wherein the aqueous composition is substantially free of gelling agent; (b) dipping heated dipping pins into the aqueous composition, wherein the aqueous composition is maintained at a temperature below a gelling temperature of the aqueous composition, (c) withdrawing the dipping pins from the aqueous composition obtaining a film on the dipping pins; and (d) drying the film on the dipping pins so as to obtain molded capsules on the pins.