RELEASING AGENT FOR RESIN MOLDING AND METHOD FOR PRODUCING RESIN MOLDING USING THE RELEASING AGENT

PROBLEM TO BE SOLVED: To develop a releasing agent which does not cause the risk of a fire and an environmental problem in terms of working, prevents the surface roughening of a molded object and deterioration in dimensional stability, and keeps its effect even after being used repeatedly and a meth...

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Bibliographische Detailangaben
Hauptverfasser:	NANBU NOBUYOSHI, HAMAGUCHI HISAMITSU, ARIMATSU KAZUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To develop a releasing agent which does not cause the risk of a fire and an environmental problem in terms of working, prevents the surface roughening of a molded object and deterioration in dimensional stability, and keeps its effect even after being used repeatedly and a method for manufacturing the molded object excellent in quality efficiently in high productivity. SOLUTION: An external releasing agent having a high releasing effect is applied thinly and uniformly on the inner surface of a mold, a releasing coating film of a water soluble polymer is formed on the releasing agent, and molding is carried out. An excellent releasing property is kept even after repeated molding. The releasing agent which provide a molded object having stable surface quality without deteriorating the dimensional precision of the mold and the method for manufacturing the molded object are provided. COPYRIGHT: (C)2005,JPO&NCIPI