Nucleated molded article, and method of producing the same

• Main Author: KONDO YOSHIYA,WATANABE YUKINAO,OZEKI YUICHI
• Format: Patent
• Language: English
• Published: 16.05.2007
• Subjects: BABY COMFORTERS; CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; DEVICES FOR RECEIVING SPITTLE; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESSES; PRESSES IN GENERAL; TRANSPORTING

The subject is to manufacture molding with core efficiently and at one time from molding material such as powder granule. To this end, a method for manufacturing molding with core was invented, which method uses compression molding means, that comprise a die, and upper and lower punches, where at least the upper punch, preferably both the upper and lower punches, have a double structure consisting of a central punch and an outer punch surrounding the outer periphery of the central punch, both the central punch and the outer punch being capable of performing sliding motions as well as compressing operations. This method includes steps of separate supplying of molding materials for core and molding material for outer layer, a compression molding step of the molding material for core and/or the molding material for outer layer, and a compression molding step of the whole molding with core. The invention also provides a rotary compression molding machine, used for execution of the method. The invention also provides various characteristic molding with core manufactured by the above manufacturing method. The core may include a large amount of microcapsules which are incomplete molding, or plural cores.