Capsule comprising low-substituted cellulose ether and...

Details Capsule comprising low-substituted cellulose ether and... Capsule comprising low-substituted cellulose ether and...

2004-12-20

2011-10-04

Tran, Susan (Department: 1615)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Capsules

C424S461000

Reexamination Certificate

active

08029821

ABSTRACT:
A capsule with good disintegration properties that can quickly display its content's efficacy as well as a method for preparing the same are provided. More specifically, provided is a capsule comprising a shell comprising low-substituted cellulose ether. Also, provided is a method for preparing a hard capsule comprising the low-substituted cellulose ether comprising a step of covering a pin for forming the hard capsule with the low-substituted cellulose ether by immersing the pin in an alkaline solution of the low-substituted cellulose ether; a step of forming the low-substituted cellulose on a surface of the pin into a gel by further immersing the covered pin in an aqueous acid solution; a step of washing by immersing the pin whose surface has been covered with the gel in water; and a step of drying.

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