Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.

Abstract: Provided is a hard capsule. The provided hard capsule includes water-soluble cellulose ether, about 0.5 parts by weight to about 1.5 parts by weight of a gelation agent based on 100 parts by weight of the water-soluble cellulose ether, and about 0 parts by weight to about 0.3 parts by weight of a gelation aid based on 100 parts by weight of the water-soluble cellulose ether, wherein the hard capsule comprises a body and a cap that seals the body, and a ratio of a maximum thickness to a minimum thickness of the body and the cap is each 2.5 or less.

Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).

Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.

Abstract: 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.

Abstract: The present invention relates to an aqueous composition for a hard capsule, the composition having an improved degree of gelation, and to a hard capsule produced using the aqueous composition. The present invention enables the production of an aqueous composition for a hard capsule, the composition having an excellent degree of gelation due to comprising a gelation agent and a gelation auxiliary agent along with water-soluble cellulose ether, alcohol and water, and as a result a high quality hard capsule having improved hard capsule moldability can be produced. Furthermore, the alcohol improves the solubility of the water-soluble cellulose ether, and thus a stable gel power can be maintained by only a small amount of gelation agent, thereby resolving the problem of the gelation agent causing a drop in solubility time.

Abstract: The present invention relates to an aqueous composition for a hard capsule, a method for producing same, and a hard capsule produced using the aqueous composition. More specifically, the present invention relates to an aqueous composition for a hard capsule which comprises a small amount of alcohol and thus has guaranteed stability and excellent capsule moldability, and to a hard capsule produced using the aqueous composition.

Abstract: The present invention relates to an aqueous composition for a hard capsule, a method for producing same, and a hard capsule produced using the aqueous composition. More specifically, the present invention relates to an aqueous composition for a hard capsule, the amount of a gelation agent and a gelation auxiliary agent included in the composition having been reduced to appropriate amounts thereby improving the dissolution rate of a hard capsule, and to a hard capsule produced using the aqueous composition.

Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).

Abstract: Provided is a hard capsule. The provided hard capsule includes a water-soluble cellulose ether and a gelation agent, wherein an amount of the gelation agent is about 0.5 parts by weight to about 1.5 parts by weight based on 100 parts by weight of the water-soluble cellulose ether, and further includes 0 parts by weight to about 0.3 parts by weight of a gelation aid based on 100 parts by weight of the water-soluble cellulose ether.

Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.

Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.

Abstract: Provided is a film. The film includes water-soluble cellulose ether, about 0.5 parts by weight to about 1.5 parts by weight of a gelation agent based on 100 parts by weight of the water-soluble cellulose ether, and 0 parts by weight to about 0.3 parts by weight of a gelation aid based on 100 parts by weight of the water-soluble cellulose ether, wherein light transmittance is 80% or greater.

Abstract: Provided is a hard capsule. The provided hard capsule includes water-soluble cellulose ether, about 0.5 parts by weight to about 1.5 parts by weight of a gelation agent based on 100 parts by weight of the water-soluble cellulose ether, and about 0 parts by weight to about 0.3 parts by weight of a gelation aid based on 100 parts by weight of the water-soluble cellulose ether, wherein the hard capsule comprises a body and a cap that seals the body, and a ratio of a maximum thickness to a minimum thickness of the body and the cap is each 2.5 or less.

Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.

Abstract: An aqueous composition for an enteric hard capsule, a method of preparing an enteric hard capsule, and an enteric hard capsule prepared using the method. The aqueous composition for an enteric hard capsule includes an enteric base material, a capsule forming aid, and a neutralizing agent.

Abstract: A composition for enteric hard capsules and an enteric hard capsule prepared using the composition. The composition includes a water-soluble divalent base and an alkaline agent. The enteric hard capsule has high transparency and delaying effects of separation of salt during storage.

Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.

Abstract: 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.

Abstract: 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.