METHOD OF MANUFACTURING CLEAR PLASTIC LIDS

Continuous thermoplastic sheeting is manufactured by extruding thermoplastic material from a circular die to form seamless thin walled tubing. This hot, seamless tube is pressed together between a water cooled draw roll and a water cooled elastomerically coated roll to form sheet material which is t...

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Bibliographische Detailangaben
1. Verfasser:	MCDEVITT, JAMES A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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:	Continuous thermoplastic sheeting is manufactured by extruding thermoplastic material from a circular die to form seamless thin walled tubing. This hot, seamless tube is pressed together between a water cooled draw roll and a water cooled elastomerically coated roll to form sheet material which is transparent and without the speckled finish caused by included air.