Capsule shell
AssigneeJapan Elanco Company Limited
InventorsTaizo Yamamoto, Seinosuke Matsuura, Kazukiyo Akai
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Abstract
A capsule shell comprising 79.6-98.7% by weight of a hydroxypropylmethyl cellulose, 0.03-0.5% by weight of carrageenan, and 0.14-3.19% by weight of a potassium ion and/or a calcium is prepared by drying an solution comprising 18-28% by weight of hydroxypropylmethyl cellulose whose 2% aqueous solution has a viscosity of 2.4-5.4 centistokes at 20.degree. C. as a base, 0.01-0.09% by weight of carrageenan as a gelling agent, and 0.05-0.6% by weight of a potassium ion and/or calcium ion as a co-gelling agent. The capsule shell exhibits disintegrating ability equivalent to gelatin shells without degrading that ability even under special conditions containing much calcium ions.
Claims8
A capsule shell comprising 79.6 to 98.7% by weight of a hydroxypropylmethyl cellulose, 0.03 to 0.5% by weight of carrageenan, and 0.14 to 3.19% by weight of a potassium ion and/or a calcium ion,
- said capsule shell being prepared by drying an aqueous solution comprising 18 to 28% by weight of hydroxypropyl-methyl cellulose having a viscosity of 2.4 to 5.4 centistokes as measured in a 2% aqueous solution at 20.degree. C. as a base, 0.01 to 0.09% by weight of carrageenan as a gelling agent, and 0.05 to 0.6% by weight of at least one ion selected from the group consisting of potassium and calcium ions as a co-gelling agent.
A capsule shell comprising 79.8 to 98.7% by weight of a hydroxypropylmethyl cellulose, 0.14 to 0.38% by weight of carrageenan, and 0.17 to 0.5% by weight of a potassium ion and/or a calcium ion,
- said capsule shell being prepared by drying an aqueous solution comprising 19 to 25% by weight of hydroxypropyl-methyl cellulose having a viscosity of 2-4 to 5.4 centistokes as measured in a 2% aqueous solution at 20.degree. C. as a base, 0.05 to 0.07% by weight of carrageenan as a gelling agent, and 0.06 to 0.1% by weight of at least one ion selected from the group consisting of potassium and calcium ions as a co-gelling agent.
Dependencies are inferred from the claim text.