Surface-Modified and Solubility-Improved Hard Capsule
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United States of America Patent
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Issued Date -
Dec 27, 2007
app pub date -
May 19, 2005
filing date -
May 24, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hard capsule comprising a water-soluble cellulose derivative as a base material, characterized in that the water-soluble cellulose derivative is formulated with one or two or more compound(s) selected from polyvinylpyrrolidones, copolymers of vinylpyrrolidone with vinyl acetate, and polyethylene glycols having a weight-average molecular weight of 400 to 100,000. The hard capsule is easy to detach the cap part from the body part and facilitates the contents to be filled therein.
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