Process for reducing draw resonance in polymeric film

A process for producing polymeric film substantially free of draw resonance under conditions and at rates which would otherwise cause draw resonance in polymeric film susceptible to draw resonance wherein a fluid medium is directed against the moving film at a location between the extrusion die and...

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Bibliographische Detailangaben
Hauptverfasser:	LUCCHESI, PETER J, ROBERTS, ERNEST H, KURTZ, STUART J
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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 process for producing polymeric film substantially free of draw resonance under conditions and at rates which would otherwise cause draw resonance in polymeric film susceptible to draw resonance wherein a fluid medium is directed against the moving film at a location between the extrusion die and the film take-up zone.