Hard capsule formed of cellulose ether film with a specific content of methoxyl and hydroxypropoxyl groups

CAFC
  • US 6,649,180 B1
  • Filed: 04/13/2000
  • Issued: 11/18/2003
  • Est. Priority Date: 04/14/1999
  • Status: Expired due to Term
First Claim
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1. A hard capsule formed of a film composition comprising a hydroxypropyl methyl cellulose as a base, a gelling agent, and a gelling aid, wherein said hydroxypropyl methyl cellulose has a content of hydroxypropoxyl groups of at least 4% by weight of the hydroxypropyl methyl cellulose and a content of methoxyl groups and hydroxypropoxyl groups combined of 23 to 37.6% by weight of the hydroxypropyl methyl cellulose.

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