Process for producing hard capsule
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United States of America Patent
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Jul 2, 2002
Grant Date -
N/A
app pub date -
Jun 29, 2000
filing date -
Oct 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing hard capsules is characterized by comprising the steps of dispersing a water-soluble cellulose derivative in hot water and cooling the dispersion to effect dissolution of the water-soluble cellulose derivative in the water, adding and dissolving a gelling agent in the water-soluble cellulose derivative solution to give a capsule-preparing solution, dipping a capsule-forming pin into the capsule-preparing solution at a predetermined temperature, then drawing out the pin and inducing gelation of the capsule-preparing solution adhering to the pin.
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