Bandseal for PEG-filled hard capsule
AssigneeQualicaps Co., Ltd.
InventorShinji Tochio
Life of this patent
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Abstract
The present invention provides a band seal for hard capsules filled with PEG, particularly a low-molecular-weight PEG, PEG 200 to 600, the band seal being capable of effectively preventing content leakage through the gap between the body and cap of the capsule; and a liquid for preparing the band seal. The present invention further provides a hard capsule filled with PEG, particularly a low-molecular-weight PEG, PEG 200 to 600, the filled capsule being prevented content leakage through the gap between the body and cap of the capsule. The band seal can be prepared using a polyvinyl alcohol, a polyvinyl alcohol copolymer, or a mixture thereof as a main component.
Claims14
A filled hard capsule comprising a film, a filling material and a band seal,
- wherein the film comprises a polyvinyl alcohol, a polyvinyl alcohol copolymer or a mixture thereof;
- wherein the filling material comprises a polyethylene glycol or a composition comprising a polyethylene glycol;
- wherein the band seal comprises a polyvinyl alcohol, a polyvinyl alcohol copolymer, or a mixture thereof, and optionally sorbitol;
- and
- wherein each polyvinyl alcohol and each polyvinyl alcohol copolymer is composed of a partially saponified polyvinyl alcohol with a saponification degree of 78 to 90 mol %;
- with the proviso that the band seal does not comprise polyvinylpyrrolidone or a copolymer of N-vinylpyrrolidone, and
- with the proviso that the band seal does not comprise polyvinyl alcohol with a gelling agent.
Dependencies are inferred from the claim text.