Patent Number: 6,165,615

Title: Gradual-releasing capsule and method for manufacturing the same

Abstract: A gradual releasing capsule having large mechanical strength, a large grain size and excellent gradual-releasability and its production method are disclosed. The capsule comprises a polymer core body containing a hydrophobic oil and a shell body formed of a cured body with which the surface of the core body is covered. The capsule is produced by dripping a core body-forming composition containing a hydrophobic oil and a reactive monomer and a curable polymer-containing solution from a multiple nozzle into a coagulating solution to form a primary capsule and then polymerizing the reactive monomer in the primary capsule.

Inventors: Itakura; Keisuke (Hiratsuka, JP), Yagi; Misao (Hiratsuka, JP)

Assignee: Takasago International Corporation

International Classification: A61K 8/11 (20060101); A61Q 13/00 (20060101); B01J 13/04 (20060101); B01J 13/06 (20060101); B01J 13/14 (20060101); A61K 9/50 (20060101); B32B 005/16 ()

Expiration Date: 12/26/2017