METHOD OF INJECTION MOLDING OF COMPACT DISCS

A method for the injection of molding of compact discs at the very small thickness of 0.6 mm employing a critical sequence of steps during and after the injection of molten plastic into the mold cavity, including allowing the injected plastic to force the mold cavity to partly reopen for a predeterm...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PICKUTOSKI, EDWARD, MUELLER, WILLIAM
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PERFORMING OPERATIONS PHYSICS 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:	A method for the injection of molding of compact discs at the very small thickness of 0.6 mm employing a critical sequence of steps during and after the injection of molten plastic into the mold cavity, including allowing the injected plastic to force the mold cavity to partly reopen for a predetermined time (or distance) before closing the mold to its final dimensions.