Samsung Fine Chemicals Co., Ltd.

Lotte Fine Chemical Co., Ltd.

Won Hwa Ko

Jin Ryul Son

Hyon Ho Baek

Sung Wan Lee

Jae Uk Cha

Min Gyu Song

Ja Hyun Cha

Eun Hee Park

A composition for enteric hard capsules, and an enteric hard capsule prepared using the composition. The composition for enteric hard capsules may include polyol having at least three hydroxyl groups. During the storage of the enteric hard capsule prepared using the composition, the separation of salt from the capsule is delayed.

Composition for enteric hard capsules, and enteric hard capsule prepared using the composition

A method of preparing enteric hard capsules, and an enteric hard capsule prepared by the method. The method may include: dissolving an enteric base material, a capsule forming aid, and a neutralizing agent in water at room temperature to prepare an aqueous composition; heating the aqueous composition to a first temperature that is higher than a gelation start temperature of the aqueous composition; cooling the heated aqueous composition to a second temperature that is lower than the gelation start temperature; immersing a mold pin heated to a third temperature that is higher than the gelation start temperature into the aqueous composition; removing the mold pin from the aqueous composition to obtain a film coated on the mold pin; maintaining the film on the mold pin at a fourth temperature that is higher than the gelation start temperature for a first time period to fix the film onto the mold pin; and drying the fixed film at a fifth temperature for a second time period to obtain a capsule shell.

Method of preparing enteric hard capsule and enteric hard capsule prepared thereby

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Incheon, South Korea

Won Hwa Ko